CN111452811A - Dual-purpose vehicle-container transport vehicle with concave bottom - Google Patents

Abstract

The invention discloses a vehicle-container dual-purpose concave bottom transport vehicle, belonging to the technical field of railway transportation, comprising a lower chassis, a middle chassis lifting device and an end chassis lifting device; the middle chassis lifting device includes a middle upper chassis , Middle and upper frame lifting device and middle and upper frame locking device; middle and upper frame lifting device is used to control the vertical lifting of the middle and upper frame; middle and upper frame locking device is used to lock the height of the middle and upper frame; Bottom rack and end rack control device; the end rack control device is used to control the lifting, locking and turning of the upper bottom rack at the end. The vehicle-container dual-purpose concave-bottom transport vehicle of the present invention can effectively improve the utilization rate of the full length of the vehicle underframe, reduce the transportation cost, avoid container collision, and has a compact structure and convenient operation.

Description

A vehicle-container dual-purpose concave bottom transport vehicle

technical field

The invention belongs to the technical field of railway transportation, and in particular relates to a vehicle-container dual-purpose concave bottom transport vehicle.

Background technique

In recent years, my country's car industry has developed by leaps and bounds, and the volume of car transportation has increased year by year. In order to adapt to the needs of the car transportation market and highlight their advantages in the fierce market competition, various freight companies and logistics companies have gained more market share. Strive for low transportation cost and high transportation efficiency.

The domestic railway car carrier has flourished in the vigorous growth of the car consumption market. Due to the use of an all-steel closed riveted and welded structure, it cannot be equipped with other goods. As a result, most vehicles can only be returned as empty vehicles, and vehicles in the off-season It can only be left idle and occupy the line, so the utilization rate of vehicles is low, the cost of use is increased, and the transportation capacity of the railway line is greatly wasted. In recent years, the state has vigorously promoted the development of multimodal transport, and the multimodal transport is mainly based on container transport. If the two can complement each other, the equipment benefit will be maximized. Patent Publication No. CN 104802811 A discloses a car-container shared special transport vehicle, the vehicle is turned down through the middle movable bottom frame, and can only be used to load one 40ft container, and the length utilization rate of the vehicle bottom frame is compared with that of a flat car 50% lower, the economic benefit is not high, and the side wall of the vehicle is high, it is difficult to observe when the container is loaded, it is easy to hit the side wall or the container, and the operation is difficult, which is not conducive to the popularization and application of dual-purpose vehicles.

The railway has the limitation of the vehicle structure of the car carrier, which cannot be used efficiently and dually during the transportation process, and the operation is inconvenient. This problem needs to be solved urgently.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a vehicle-container dual-purpose concave-bottom transport vehicle for the above-mentioned shortcomings, which is intended to solve the problem that the existing railway car transport vehicle cannot transport the container with the bottom frame of the full length, the container is easy to collide, the operation is inconvenient, and the vehicle transportation Low capacity and high transportation costs. To achieve the above object, the present invention provides the following technical solutions:

A vehicle-container dual-purpose concave-bottom transport vehicle, comprising a lower-layer underframe, a middle underframe lifting device and an end underframe lifting device; the lower-layer underframe is provided with a concave bottom in the middle, and two ends are provided with a high bottom and a concave bottom. and the high bottom are connected by the inclined bottom; the middle bottom frame lifting device includes the middle upper bottom frame, the middle upper frame lifting device and the middle upper frame locking device; the middle and upper frame lifting device is arranged between the concave bottom and the middle upper frame; The middle and upper rack lifting devices are used to control the vertical lifting of the middle and upper underframes; the number of the middle and upper rack locking devices is at least four, and they are evenly distributed on both sides of the middle and upper racks; the middle and upper rack locking devices are used to The rack height is locked; the end bottom rack lifting device includes an end upper bottom rack and an end top rack control device; the end upper bottom rack corresponds to a high bottom, and there are four Each end rack control device, wherein a pair of end rack control devices are symmetrically arranged at the front and rear positions of the end upper underframe; the end rack control device includes an end rack lifting device, a multi-stage telescopic sleeve and an end rack rotation device; The upper frame lifting device is used to control the lifting and lowering of the upper bottom frame at the end; the multi-stage telescopic sleeve is provided with an end upper frame lifting device; the multi-stage telescopic sleeve is used to lock the length of the end upper frame lifting device; the end upper frame rotates The device is used to drive the multi-stage telescopic sleeve to turn over along the length direction of the lower chassis. It can be seen from the above structure that the lower bottom frame is provided with a concave bottom in the middle, and the two ends are provided with a high bottom, and the concave bottom and the high bottom are connected by an inclined bottom; And the four end rack lifting devices control the upper bottom rack at the end to rise, the large SUV cars to be transported pass through the high bottom, the inclined bottom to the concave bottom, and some taller large SUVs can be parked on the concave bottom, and the concave bottom is improved. The space accommodating capacity of the transport vehicle; after the rising height of the middle and upper chassis is determined, the middle and upper chassis locking device will lock the height of the middle and upper chassis, so as to avoid the pressure of the cars parked on the middle and upper chassis when the middle and upper chassis lifting device is not working. The middle-upper frame lifting device drives the middle-upper bottom frame to descend, so that the middle-upper-layer frame can finally be supported on the lower-layer frame; the middle-upper frame lifting device is always located between the concave bottom and the middle-upper frame. The upper bottom frame at the end corresponds to a high bottom, so if a large SUV needs to pass through the high bottom and park cars on the high bottom, it is necessary to adjust the angle of the upper bottom frame at the end to ensure the space below the upper bottom frame at the end. The angle of the upper bottom frame at the end is controlled and adjusted by the four lifting devices for the upper frame. There are three states when the upper chassis at the end rises, horizontal working position, middle working position and fully open working position, which can be mixed with the existing mainstream car transporters to improve the applicability of the vehicle, and the fully open working position Compared with the middle working position, the outer end of the upper chassis of the end is raised higher; the fully open working position is to enable the large SUV to open to the concave bottom, and the middle working position is to park some slightly higher on the high bottom. Point of the car, the four end of the upper frame lifting device can easily adjust the angle of the upper end of the chassis, and the height of the upper end of the chassis. After the end-up rack lifting device raises the end-upper underframe to a height, if the end-upper undercarriage is loaded, it will adversely affect the long-term load of the end- rack lifting device, so a multi-stage telescopic sleeve is required to lock the end- rack lifting device length. , that is, a multi-stage telescopic sleeve to support the upper chassis at the end. Since the multi-stage telescopic sleeve and the end rack lifting device always have a certain length, the end upper chassis cannot fall vertically to the lower chassis, so the end rack rotation device is required to drive the multi-stage telescopic sleeve along the lower bottom. The length direction of the frame is turned over, so that the upper bottom frame at the end can be offset along the length direction and then supported on the lower base frame. This transport vehicle can not only transport cars on a double-deck, but when the upper bottom chassis at the end is supported on the lower chassis and the middle upper chassis is supported on the lower chassis, the end upper chassis and the middle upper chassis can be parked on the bottom chassis. Large trucks or containers that enable transport vehicles to transport other goods and avoid empty cart returns. In the off-season, the vehicles will not be idle and will not occupy the line, so the utilization rate of vehicles is high, the cost of use is reduced, and the transportation capacity of the railway line is greatly improved. Since the transport vehicle has no roof and no side walls, the container will not collide when loaded, and the bottom frame can transport the container in full length, thereby improving the transport capacity and transport efficiency of the transport vehicle. It solves the problems of the existing special vehicles for railway transportation of cars, such as strong special purpose, low utilization rate and high use cost. There are no obstacles on the upper chassis at the end and the upper chassis in the middle to hinder the loading of containers, and it has multimodal transportation capability, high transportation efficiency and low transportation cost. The concave bottom is a concave part in the middle of the lower chassis, including a concave bottom surface and two side walls connected with the bottom surface. The upper bottom frame at the end adopts a plate beam structure. The upper frame of the middle part adopts a plate beam structure. The number of the middle and upper rack locking devices is at least four, and they are evenly distributed on both sides of the middle and upper racks; for example, there are two middle and upper rack locking devices on each side of the middle and upper racks, and the middle and upper rack locking devices on both sides are symmetrically arranged, so that the middle and upper racks are located at the bottom of the middle and upper racks. The height of the rack is locked stably.

Further, the middle-upper frame locking device includes a support rod, a sliding piece, a locking piece and a guide rail; one end of the support rod is hinged to one side of the lower chassis, and the other end is provided with a sliding piece; The guide rail under the middle-upper chassis is slid along the width direction of the middle-upper chassis; the locking piece is used to slide the slider to the edge of the middle-upper chassis, and the support rod is provided with one end of the slider and the middle-upper bottom rack lock. It can be seen from the above structure that the middle and upper rack locking device has a simple structure, is convenient to use and has good reliability; the middle and upper rack locking device includes a support rod, a sliding piece, a locking piece and a guide rail; one end of the support rod is hinged on one side of the lower chassis, The other end is provided with a sliding member; the sliding member is used to cooperate with the guide rail arranged under the middle upper chassis, and slide along the width direction of the middle upper chassis, and the guide rail is set along the width direction of the middle upper chassis; When the upper frame lifting device drives the middle upper frame to rise, the sliding piece is used to cooperate with the guide rail arranged under the middle upper frame, and slide along the width direction of the middle upper frame to the edge of the middle upper frame, and then the locking member sets the support rod to the edge. One end of the sliding piece is locked with the upper middle bottom frame, so that the sliding piece cannot move, and the middle and upper frame locking device locks the height of the middle upper base frame stably. When the locking piece is not locked, the middle-upper frame lifting device drives the middle-upper-layer underframe to descend, and the sliding piece cooperates with the guide rail arranged under the middle-upper-layer underframe, and slides along the width direction of the middle-upper-layer underframe to the middle of the middle-upper-layer underframe, and finally The middle upper chassis is supported on the lower chassis.

Further, the number of the middle and upper frame lifting devices is at least four, and they are evenly distributed on both sides of the middle and upper frame; the middle and upper frame lifting devices are telescopic cylinders or telescopic hydraulic cylinders; The bottom frame is fixed to ensure that the telescopic direction is vertical; the telescopic end of the middle and upper frame lifting device is hinged with the middle upper bottom frame, and the cylinder end is hinged with the concave bottom. It can be seen from the above structure that, for example, the number of middle and upper frame lifting devices can be four, two on each side of the middle and upper frame, and the middle and upper frame lifting devices on both sides are symmetrically arranged to ensure that the middle upper frame is stably lifted or lowered by the middle and upper frame lifting devices. The middle and upper rack lifting device can be used as a telescopic cylinder or a telescopic hydraulic cylinder, which is easy to control. In addition, because the middle and upper rack locking device locks the height of the middle and upper racks, it can avoid the cars parked on the middle and upper racks when the middle and upper rack lifting device is not working. The pressure of the telescopic cylinder or the telescopic hydraulic cylinder is protected, and there is no need to equip a large-sized telescopic cylinder or a telescopic hydraulic cylinder for the lifting force, because the required lifting force is relatively small, which saves costs. Telescopic cylinders or telescopic hydraulic cylinders always have a length, and the concave bottom provides such an accommodation space. The concave bottom is a concave part in the middle of the lower chassis, including a concave bottom surface and two side walls connected with the bottom surface. The lifting device of the middle and upper racks can also adopt other existing lifting structures matched with racks and pinions. The lifting device of the middle and upper racks can be a telescopic cylinder or a telescopic hydraulic cylinder, and the stroke of the multi-stage telescopic cylinder can be used to make the lifting device of the middle and upper racks drive the middle and upper layers. The bottom frame is lowered to the lower bottom frame to meet the loading requirements of 1AAA wide body and high box. The cylinder barrel of the middle and upper frame lifting device is fixed to the lower chassis, which is used to ensure that the direction of expansion is vertical, so that the middle and upper chassis can stably rise or fall vertically; because the middle and upper frame lifting device is a telescopic cylinder or a telescopic hydraulic cylinder, Therefore, the middle and upper frame lifting device has a telescopic end and a cylinder end. The telescopic end of the middle and upper frame lifting device is hinged with the middle upper chassis, and the cylinder end and the concave bottom are hinged. The middle and upper frame lifting device can drive the middle and upper chassis to lift. .

Further, the sliding member is a cylindrical slider and is fixed at one end of the support rod; the guide rail is a guide plate with a chute; the chute extends along the width direction of the middle upper chassis; the cylindrical slider through the chute. It can be seen from the above structure that the sliding member can be selected to use a cylindrical slider, for example, welded on one end of the support rod, and the guide rail is a guide plate with a chute; the chute extends along the width direction of the upper chassis in the middle; the cylindrical slider Through the chute, when the middle upper chassis is lifted and lowered, the cylindrical sliding block can move along the width direction of the middle upper chassis, the structure is simple and reliable, and the manufacturing cost is low.

Further, the locking member includes a first eye lug arranged on one side of the middle upper chassis, a second eye lug and a locking pin arranged at one end of the support rod with the sliding component; the sliding component slides to the edge of the middle upper chassis When the through holes of the first lug and the second lug are aligned, the locking pin can be inserted into the through holes of the first lug and the second lug, and the end of the support rod with the sliding piece is locked with the middle upper chassis . It can be seen from the above structure that when the middle upper chassis is stably lifted by the middle and upper chassis lifting device, when the sliding member slides to the edge of the middle upper chassis, the through holes of the first and second eye lugs are aligned, and the locking pin can be locked. Insert the through holes of the first lug and the second lug. At this time, the sliding member cannot move. The end of the support rod with the sliding member is locked with the middle upper chassis, that is, the middle and upper chassis locking device stably locks the height of the middle and upper chassis. . The locking pin can be a spring latch or a self-locking pin. The upper bottom frame of the middle part is supported by the support rod, so as to avoid pressing the lifting device of the middle and upper frame when carrying.

Further, the middle upper chassis is provided with elongated holes arranged along the width direction; the elongated holes are used to avoid interference between the second lugs and the middle upper chassis during the sliding process of the sliding member. As can be seen from the above structure, because the second hole lug will interfere with the middle upper chassis during the sliding process of the slider, a long hole is provided to avoid the second hole lug; the second hole lug can extend into the long bar during the moving process. hole.

Further, the middle bottom frame lifting device also includes middle and upper frame reinforcement devices corresponding to the number of middle and upper frame locking devices; the middle and upper frame reinforcement devices include two reinforcement rods; The other end is hinged on the rotating seat provided on the lower chassis, so that the two reinforcing rods can be turned over along the width direction of the middle upper chassis along with the support rod and avoid the support rod being turned over along the length direction of the middle upper chassis. It can be seen from the above structure that each middle and upper frame locking device is equipped with a middle and upper frame reinforcement device, and the middle and upper frame reinforcement device includes two reinforcement rods; On the rotating seat, the rotating seat and the lower chassis are hinged, and the two reinforcing rods are symmetrically arranged with respect to the supporting rod. The two reinforcing rods can be turned over along the width direction of the middle and upper chassis with the supporting rod and avoid the supporting rod along the middle and upper bottom. The length direction of the frame is turned over. When the transport vehicle is impacted in the longitudinal direction, the support rod is subjected to the force of turning over along the length direction of the upper bottom frame in the middle, and the two reinforcing rods improve the stability of the support rod.

Further, the multi-stage telescopic sleeve includes several support sleeves that are nested in sequence from the inside to the outside; the support sleeve is provided with several matching holes arranged along the length direction of the support sleeve; the matching The hole is used for inserting a lock pin to lock the length of the multi-stage telescopic sleeve; the upper end of the upper-end rack lifting device and the upper end of the innermost support sleeve of the multi-stage telescopic sleeve are jointly hinged with an upper hinge seat, and the lower end of the end-up rack lifting device and the multi-stage telescopic sleeve are hinged together. The lower end of the outermost support sleeve of the stage telescopic sleeve is jointly hinged with a lower hinge seat; the upper hinge seat is fixed on the side of the upper chassis of the end, and the lower hinge seat is fixed on the side of the lower chassis; the end upper frame rotating device The outermost support sleeve for driving the multi-stage telescopic sleeve is turned over along the length direction of the lower chassis. It can be seen from the above structure that the multi-stage telescopic sleeve includes a number of support sleeves that are nested in sequence from the inside to the outside. If it is three-stage, the multi-stage telescopic sleeve includes an outer support nested from the outside to the inside. Sleeve, middle support sleeve and inner support sleeve, each support sleeve is provided with several matching holes arranged along the length direction of the support sleeve; the inner side of the top and the outer side of the bottom of each support sleeve are surrounded by limiting parts , so that when the length of the inner support sleeve is insufficient with the rise of the upper chassis at the end, it will pull the outer support sleeve to move up, and finally the length of the multi-stage telescopic sleeve can be adjusted, and the multi-stage telescopic sleeve needs to be locked. Only need to insert lock pins in the corresponding aligned matching holes to lock the length of the multi-stage telescopic sleeves, that is, each support sleeve cannot move with each other; the lock pins can be self-locking pins.

Further, the end rack rotation device is a telescopic cylinder or a telescopic hydraulic cylinder; the telescopic end of the end rack rotation device is hinged with the outermost support sleeve of the multi-stage telescopic sleeve, and the cylinder end is connected to one side of the lower chassis. Hinged; the end rack lifting device is a telescopic cylinder or a telescopic hydraulic cylinder; the end rack control device also includes a stabilizing rod; one end of the stabilizing rod is hinged with the lower chassis, and the other end is detachably connected to the highest end of the multi-stage telescopic sleeve. The third hole ear provided on the outer support sleeve; the stable rod is used to form a stable triangle with the outermost support sleeve and the lower chassis of the multi-stage telescopic sleeve; one end of the upper chassis at the end is hinged There is a crossing plate, and the other end is hinged with an upper-layer auxiliary chassis at the end; the upper-layer auxiliary chassis at the end is used for connecting the middle-upper chassis provided above the concave bottom when the upper-end upper chassis is in the rising state, and at the end When the upper bottom chassis of the upper part is in the lowered state, the auxiliary chassis of the upper end of the end part can be turned down and stored under the upper chassis of the middle part. It can be seen from the above structure that the rotating device of the end rack is a telescopic cylinder or a telescopic hydraulic cylinder, and the control is simple. The multi-stage telescopic sleeve and the lifting device of the end rack are controlled to rotate by telescopic, so that the upper rack of the end can be offset along the length direction. The rear is supported on the lower chassis. The end rack rotating device can also be a power mechanism with other gears and racks. The lifting device of the end rack is a telescopic cylinder or a telescopic hydraulic cylinder, and the control is simple. The height and angle of the upper bottom frame of the end are controlled by telescopic, and the lifting device of the end rack is also conveniently built into the multi-stage telescopic sleeve. The end rack lifting device can also be a power mechanism matched with other gears and racks. Since the multi-stage telescopic sleeve can be turned over, after the position of the multi-stage telescopic sleeve is determined, it needs to be locked to prevent the end rack rotating device from always working; the stabilizer rod can choose a rod with a suitable length or an adjustable telescopic threaded rod. The structure is simple and the manufacturing cost is low. One end of the stabilizing rod is hinged with the lower chassis, and the other end can be connected to the third hole lug provided on the outermost support sleeve of the multi-stage telescopic sleeve through a lock pin, that is, the lock pin is inserted into the through hole of the third hole lug and stabilized. The rod has a corresponding through hole at this end; the stabilizing rod is used to form a stable triangle with the outermost support sleeve and the lower chassis of the multi-stage telescopic sleeve. When the multi-stage telescopic sleeve needs to be rotated, just pull out the lock pin. The crossing board adopts the existing movable crossing board, which is used to facilitate loading and unloading of goods to the transport vehicle. The other end of the end upper layer chassis is hinged with the end upper layer auxiliary chassis, and the end upper layer auxiliary chassis is used for connecting the middle upper layer chassis provided above the concave bottom when the end upper layer chassis is in the rising state. Therefore, in the ascending state, there will be a gap between the end upper chassis and the middle upper chassis, and the upper end auxiliary chassis is used to make up for the gap. If there is no gap, the end upper chassis will shift along the length direction after Hit the middle upper chassis. When in the lowered state, the upper auxiliary chassis at the end can be folded down and stored under the middle upper chassis. The end upper-layer chassis is shifted in the longitudinal direction and then connected to the lower middle-level upper chassis. The upper frame control device further comprises a lateral stabilizer bar; one end of the lateral stabilizer bar is connected with the upper bottom frame at the end, and the other end is connected with the outermost support sleeve of the multi-stage telescopic sleeve; the lateral stabilizer bar is used for and The multi-stage telescopic sleeve and the upper bottom frame at the end form a stable triangle; the lateral stabilizer bar is detachable.

Further, it also includes a coupler buffer device, a brake device and a bogie; the coupler buffer device, the brake device and the bogie are all arranged on the lower chassis; the concave bottom of the lower chassis corresponds to two connected The middle bottom frame lifting device, the high bottoms at both ends each correspond to an end bottom frame lifting device; both sides of the upper bottom frame at the end are provided with end frame activity bars; the end frame activity bars can be locked in the upturned position and The upper bottom frame of the end part is an arc structure, the middle part is high, and the two sides are low; both sides of the middle upper frame are provided with middle and upper frame movable bars; the middle and upper frame movable bars can be turned up. Position locking and downturning position storage; container locking devices are provided on the middle upper chassis; container locking devices are also provided on the lower chassis. It can be seen from the above structure that when the personnel operates, the upper bottom frame of the end is locked in the upturned position, which plays a protective role; The upper bottom frame can be turned over, and a matching through hole is drilled on the upper bottom frame at the end and the hinge seat, and the upper bottom frame at the end can be locked in the upturned position by inserting the lock pin; the upper bottom frame at the end needs to be turned down When storing in position, turn over the upper bottom frame of the end to a roughly horizontal position for storage, so as to avoid damage when loading the container. When the operator is operating, the middle and upper racks can be locked in the upturned position to play a protective role; A matching through hole is drilled on the movable bar and the hinge seat, and the middle and upper rack movable bar can be locked in the upturned position by inserting the lock pin; when the middle and upper rack movable bar needs to be stored in the downwardly turned position, the middle and upper rack movable bar is turned to be approximately horizontal. It can be stored in the position to avoid damage when loading the container. The upper bottom frame of the end part is an arc structure, the middle part is high and the two sides are low. In this way, there will be a larger space between the high bottom and the upper chassis at the end to accommodate the car, because the car is also high in the middle and low on both sides. Container locking devices are used to support and fasten containers. For supporting and securing containers. The coupler buffer device, the braking device and the bogie are the technologies of the existing railway vehicles, and will not be repeated here.

The beneficial effects of the present invention are:

1. The present invention discloses a vehicle-container dual-purpose concave-bottom transport vehicle, which solves the defect that existing vehicles can only transport cars, increases the container transport function of full bottom frame length, and can be equipped with other goods through the container, avoiding Empty trucks can be transported back, the utilization rate of vehicles is improved, transportation costs are reduced for users, and the economic benefits are significant. The utility model can avoid container collision, has a compact structure and is easy to operate.

2. The present invention discloses a vehicle-container dual-purpose concave bottom transport vehicle, which can meet the transportation of large vehicles and enrich the types of transportation vehicles.

3. The present invention discloses an automobile-container dual-purpose concave bottom transporter, which not only realizes the function of automobile transportation, but also satisfies the container loading function of the full length of the bottom frame. , idle in the off-season, so that the utilization rate of vehicles is improved, the cost of use is reduced, and the transportation capacity of the railway line is improved.

4. The present invention discloses a vehicle-container dual-purpose concave bottom transport vehicle, which is easy to operate, reduces the labor intensity of operators, saves labor, and is safe and reliable.

5. The present invention discloses a vehicle-container dual-purpose concave bottom transporter, which has horizontal position, intermediate position and fully open position, which can be mixed with existing mainstream car transporters to improve the applicability of the vehicle.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the lifting state of the middle bottom frame lifting device of the present invention, and the middle upper frame movable bar is in the upturned locking position;

Fig. 2 is the left side structural schematic diagram of the lifting state of the middle bottom frame lifting device of the present invention, and the middle upper frame movable bar is in the upturned locking position;

Fig. 3 is the front view structure schematic diagram of the lowering state of the middle bottom frame lifting device of the present invention, and the middle upper frame movable bar is in the down-turned storage position;

Fig. 4 is the left side structural schematic diagram of the lowering state of the middle bottom frame lifting device of the present invention, and the middle upper frame movable bar is in the down-turned storage position;

5 is a schematic diagram of the overall structure of two middle underframe lifting devices of the present invention in cooperation with one lower underframe;

6 is an overall axonometric schematic diagram of two middle underframe lifting devices of the present invention cooperating with a lower underframe;

Fig. 7 is the partial schematic diagram of Fig. 6;

Fig. 8 is a schematic diagram of the axonometric structure of the middle upper chassis of the present invention;

Figure 9 is a schematic diagram of the overall structure of the lower chassis of the present invention, with two middle chassis lifting devices and two end chassis lifting devices in a fully lowered state;

Figure 10 is a schematic diagram of the state structure of the present invention applied to a transport car;

Figure 11 is a schematic structural diagram of the present invention applied to the state of transporting a large truck;

Figure 12 is a schematic diagram of the state structure of the present invention applied to a transport container;

FIG. 13 is a superimposed schematic diagram of two states of the lifting and lowering of the end bottom frame lifting device of the present invention.

FIG. 14 is a schematic diagram of the state of the end bottom frame lifting device of the present invention in the ascending horizontal working position.

Figure 15 is a left side schematic view of Figure 14;

Fig. 16 is a schematic diagram showing the state of the lifting and lowering device of the end bottom frame of the present invention in a rising intermediate working position.

Fig. 17 is a schematic diagram showing the state of the lifting device of the end bottom frame of the present invention in the fully open working position.

Figure 18 is a schematic structural diagram of the end rack control device of the present invention;

Figure 19 is a schematic diagram of the overall structure of the present invention, wherein the upper auxiliary chassis at the end shows the overlapping state of the upper chassis in the middle part and the downturned state;

Figure 20 is a schematic structural diagram of the container locking device on the lower chassis of the present invention.

In the attached drawings: 1- lower frame, 2- middle upper frame, 3- middle and upper frame lifting device, 4- middle and upper frame locking device, 5- concave bottom, 6- support rod, 7- sliding piece, 8- locking piece , 9-guide rail, 10-chute, 11-first lug, 12-second lug, 13-long hole, 14- middle upper frame reinforcement device, 15- reinforcement rod, 16- rotating seat, 17- middle Activity bar for racking, 18-container locking device, 19-end upper bottom frame, 20-high bottom, 21-sloping bottom, 22-end racking lifting device, 23-multi-stage telescopic sleeve, 24-end racking rotating device , 25-supporting sleeve, 26-matching hole, 27-upper hinge seat, 28-lower hinge seat, 29-stabilizing rod, 30-third hole lug, 31-end upper frame movable rail, 32-crossing plate, 33- End upper auxiliary chassis, 34-coupler buffer device, 35-braking device, 36-bogie, 37-outer support sleeve, 38-middle support sleeve, 39-inner support sleeve.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following examples.

Example 1:

See Figures 1 to 20. An automobile-container dual-purpose concave bottom transport vehicle, comprising a lower underframe 1, a middle underframe lifting device and an end underframe lifting device; the lower underframe 1 is provided with a concave bottom 5 in the middle and high bottoms at both ends. 20, the concave bottom 5 and the high bottom 20 are connected by the inclined bottom 21; the middle bottom frame lifting device includes the middle upper bottom frame 2, the middle upper frame lifting device 3 and the middle upper frame locking device 4; the concave bottom 5 and the middle upper layer bottom The middle and upper frame lifting devices 3 are arranged between the frames 2; the middle and upper frame lifting devices 3 are used to control the vertical lifting and lowering of the middle and upper bottom frames 2; the number of the middle and upper frame locking devices 4 is at least four, and they are evenly distributed on the middle and upper layers. The bottom frame 2 is on both sides; the middle and upper frame locking device 4 is used to lock the middle and upper frame 2 in height; the end bottom frame lifting device includes the end upper frame 19 and the end upper frame control device; The rack 19 corresponds to a high bottom 20, and four end rack control devices are arranged between the high bottom 20 and the upper bottom frame 19 at the end, wherein a pair of end rack control devices are symmetrically arranged at the front and rear positions of the upper bottom rack 19 at the end; The end rack control device includes an end rack lifting device 22, a multi-stage telescopic sleeve 23 and an end rack rotation device 24; the end rack lifting device 22 is used to control the lifting and lowering of the end upper chassis 19; the multi-stage telescopic sleeve 23 is provided with an end rack lifting device 22; the multi-stage telescopic sleeve 23 is used to lock the length of the end rack lifting device 22; the end rack rotation device 24 is used to drive the multi-stage telescopic sleeve 23 along the lower chassis 1 Flip the length direction. It can be seen from the above structure that the lower bottom frame 1 is provided with a concave bottom 5 in the middle, and high bottoms 20 are provided at both ends, and the concave bottom 5 and the high bottom 20 are connected by the inclined bottom 21; After the middle upper chassis 2 rises to a certain height and when the four end upper chassis lifting devices 22 control the end upper chassis 19 to rise, the large SUV car to be transported passes through the high bottom 20, the inclined bottom 21 to the concave bottom 5, and the concave bottom 5 Some taller large SUVs can be parked on the top, and the concave bottom 5 improves the space capacity of the transport vehicle; after the rising height of the upper middle frame 2 is determined, the middle upper frame locking device 4 locks the height of the middle upper frame 2 to avoid the lifting of the middle upper frame When the device 3 is not in operation, it is under pressure from the car parked on the middle upper chassis 2 . The middle-upper frame lifting device 3 drives the middle-upper underframe 2 to descend, so that the middle-upper frame 2 is finally supported on the lower-layer underframe 1; The upper bottom frame 19 at the end corresponds to a high bottom 20, so if a large SUV needs to pass through the high bottom 20 and park a car on the high bottom 20, it is necessary to adjust the angle of the upper bottom frame 19 at the end to ensure that the upper bottom frame 19 is below the end. space. The angle of the upper end frame 19 is controlled and adjusted by the four end frame lifting devices 22. The end upper frame 19 is symmetrically provided with end frame lifting devices 22 on both sides of the front position and the rear position. The upper bottom frame 19 at the end has three states when it rises, horizontal working position, middle working position and fully open working position, which can be mixed with the existing mainstream car transport vehicles to improve the applicability of the vehicle, and the fully open working position Compared with the middle working position, the outer end of the upper bottom frame 19 at the end is tilted higher; the fully open working position is to enable the large SUV to reach the concave bottom 5, and the middle working position is to be on the high bottom 20. For parking some slightly higher cars, the four upper-end rack lifting devices 22 can easily adjust the angle of the upper-end upper-level chassis 19 and the height of the upper-end upper-level chassis 19 . After the end upper frame lifting device 22 raises the end upper bottom frame 19 to a height, if the end upper frame 19 is loaded, it will adversely affect the long-term load of the end upper frame lifting device 22, so a multi-stage telescopic sleeve 23 is required to lift the end frame. The length of the upper frame lifting device 22 is locked, that is, the multi-stage telescopic sleeve 23 is used to support the upper bottom frame 19 at the end. Since the multi-stage telescopic sleeve 23 and the upper frame lifting device 22 always have a certain length, the upper end frame 19 cannot fall vertically to the lower frame 1, so the end frame rotating device 24 is required to drive the multi-stage telescopic sleeve. The drum 23 is turned over along the length direction of the lower chassis 1 , so that the upper chassis 19 at the end can be offset along the length direction and then supported on the lower chassis 1 . This transport vehicle can not only transport cars on two levels, but when the end upper chassis 19 is supported on the lower chassis 1 and the middle upper chassis 2 is supported on the lower chassis 1, the end upper chassis 19 and the middle upper chassis Large trucks or containers can be parked on the bottom frame 2, so that the transport vehicle can transport other goods and avoid returning empty vehicles. In the off-season, the vehicles will not be idle and will not occupy the line, so the utilization rate of vehicles is high, the cost of use is reduced, and the transportation capacity of the railway line is greatly improved. Since the transport vehicle has no roof and no side walls, the container will not collide when loaded, and the bottom frame can transport the container in full length, thereby improving the transport capacity and transport efficiency of the transport vehicle. It solves the problems of the existing special vehicles for railway transportation of cars, such as strong special purpose, low utilization rate and high use cost. The end upper chassis 19 and the middle upper chassis 2 always have no obstacles to hinder the loading of containers, and have multimodal transport capability, high transport efficiency and low transport cost. The concave bottom 5 is a concave part in the middle of the lower chassis 1, including a concave bottom surface and two side walls connected to the bottom surface. The upper bottom frame 19 at the end adopts a plate beam structure. The upper bottom frame 2 in the middle adopts a plate beam structure. The number of the middle and upper rack locking devices 4 is at least four, and they are evenly distributed on both sides of the middle upper layer chassis 2; , so that the height of the middle upper chassis 2 is locked stably.

Embodiment 2:

See Figures 1 to 20. On the basis of the first embodiment, the middle and upper frame locking device 4 includes a support rod 6, a sliding member 7, a locking member 8 and a guide rail 9; one end of the support rod 6 is hinged on one side of the lower frame 1, and the other end is provided with Sliding member 7; the sliding member 7 is used to cooperate with the guide rail 9 arranged under the middle upper chassis 2, and slide along the width direction of the middle upper chassis 2; the locking member 8 is used to slide the sliding member 7 to the middle When the edge of the upper chassis 2 is at the edge, the end of the support rod 6 provided with the sliding member 7 is locked with the upper chassis 2 in the middle. It can be seen from the above structure that the middle and upper rack locking device 4 has a simple structure, is convenient to use, and has good reliability; the middle and upper rack locking device 4 includes a support rod 6, a sliding member 7, a locking member 8 and a guide rail 9; one end of the support rod 6 is hinged On one side of the lower chassis 1, the other end is provided with a sliding member 7; the sliding member 7 is used to cooperate with the guide rail 9 arranged under the middle upper chassis 2, and slide along the width direction of the middle upper chassis 2, the guide rail 9 It is arranged along the width direction of the middle upper chassis 2; so when the middle upper lifting device 3 drives the middle upper chassis 2 to rise, the sliding member 7 is used to cooperate with the guide rail 9 arranged under the middle upper chassis 2, and along the middle The upper chassis 2 is slid to the edge of the middle upper chassis 2 in the width direction, and then the locking member 8 locks the end of the support rod 6 with the sliding member 7 and the middle upper chassis 2, so that the sliding member 7 cannot be moved, and the middle upper frame is locked The device 4 stably locks the height of the middle and upper chassis 2 . When the locking member 8 is not locked, the middle-upper frame lifting device 3 drives the middle-upper frame 2 to descend, and the sliding member 7 cooperates with the guide rail 9 arranged under the middle-upper frame 2 and slides along the width direction of the middle-upper frame 2 to The middle upper chassis 2 is in the middle, and finally the middle upper chassis 2 is supported on the lower chassis 1 .

The number of the middle and upper frame lifting devices 3 is at least four, and they are evenly distributed on both sides of the middle upper frame 2; the middle and upper frame lifting devices 3 are telescopic cylinders or telescopic hydraulic cylinders; The lower bottom frame 1 is fixed to ensure that the telescopic direction is vertical; the telescopic end of the middle and upper frame lifting device 3 is hinged with the middle upper bottom frame 2 , and the cylinder end is hinged with the concave bottom 5 . It can be seen from the above structure that, for example, the number of the middle and upper frame lifting devices 3 can be four, two on each side of the middle upper frame 2, and the middle and upper frame lifting devices 3 on both sides are symmetrically arranged to ensure that the middle upper frame 2 is stabilized by the middle upper frame lifting device 3. Raise or fall. The middle and upper rack lifting device 3 can be used as a telescopic cylinder or a telescopic hydraulic cylinder, and the control is simple. In addition, because the middle and upper rack locking device 4 locks the middle and upper bottom frame 2 at a height, it is avoided that the middle and upper rack lifting device 3 is parked at the bottom of the middle upper layer when it is not working. The pressure of the car on the frame 2 protects the telescopic cylinder or the telescopic hydraulic cylinder, and there is no need to equip a large-sized telescopic cylinder or a telescopic hydraulic cylinder for the lifting force, because the required lifting force is relatively small, which saves costs. The telescopic cylinder or the telescopic hydraulic cylinder always has a length, and the concave bottom 5 provides such an accommodating space. The concave bottom 5 is a concave part in the middle of the lower chassis 1, including a concave bottom surface and two side walls connected to the bottom surface. The middle and upper rack lifting device 3 can also adopt other existing lifting structures that cooperate with racks and pinions. The middle and upper rack lifting device 3 can be used as a telescopic cylinder or a telescopic hydraulic cylinder. Drive the middle upper chassis 2 to lower to the lower chassis 1, to meet the loading requirements of 1AAA wide-body high box. The cylinder barrel of the middle and upper frame lifting device 3 is fixed to the lower chassis 1 to ensure that the telescopic direction is vertical, so that the middle and upper chassis 2 can stably rise or fall vertically; because the middle and upper frame lifting device 3 is a telescopic cylinder or A telescopic hydraulic cylinder, so the middle and upper frame lifting device 3 has a telescopic end and a cylinder end. The device 3 can drive the middle upper chassis 2 to rise and fall.

The sliding member 7 is a cylindrical sliding block and is fixed on one end of the support rod 6; the guide rail 9 is a guide plate with a chute 10; the chute 10 extends along the width direction of the middle and upper chassis 2; the The cylindrical slider passes through the chute 10 . It can be seen from the above structure that the sliding member 7 can choose to use a cylindrical slider, for example, welded on one end of the support rod 6, and the guide rail 9 is a guide plate with a chute 10; the chute 10 extends along the width direction of the middle and upper chassis 2 The cylindrical slider runs through the chute 10, and when the middle upper chassis 2 rises and falls, the cylindrical slider can move along the width direction of the middle upper chassis 2. This structure is simple and reliable, and the manufacturing cost is low.

The locking member 8 includes a first hole lug 11 arranged on one side of the middle upper chassis 2, a second hole lug 12 arranged at one end of the support rod 6 with the sliding member 7, and a locking pin; the sliding member 7 slides to the middle At the edge of the upper chassis 2, the through holes of the first lug 11 and the second lug 12 are aligned, so that the locking pin can be inserted into the through holes of the first lug 11 and the second lug 12, and the support rod 6 is provided with One end of the sliding member 7 is locked with the middle upper chassis 2 . It can be seen from the above structure that when the middle upper frame 2 is stably lifted by the middle upper frame lifting device 3, when the sliding member 7 slides to the edge of the middle upper frame 2, the through holes of the first lug 11 and the second lug 12 are opposite to each other. To be accurate, the locking pin can be inserted into the through holes of the first hole lug 11 and the second hole lug 12. At this time, the sliding member 7 cannot move. The upper rack locking device 4 stably locks the height of the middle upper bottom rack 2 . The locking pin can be a spring latch or a self-locking pin. The middle and upper bottom frame 2 is supported by the support rod 6 to avoid pressing the middle and upper frame lifting device 3 when carrying.

The middle upper chassis 2 is provided with elongated holes 13 along the width direction; the elongated holes 13 are used to avoid interference between the second lugs 12 and the middle upper chassis 2 during the sliding process of the sliding member 7 . As can be seen from the above structure, because the second lug 12 will interfere with the middle upper chassis 2 during the sliding process of the sliding member 7, the elongated hole 13 is provided to avoid the second lug 12; the second lug 12 is in the moving process. The elongated hole 13 can be extended into the middle.

The middle bottom frame lifting device further includes middle and upper frame reinforcing devices 14 corresponding to the number of the middle and upper frame locking devices 4; the middle and upper frame reinforcing device 14 includes two reinforcing rods 15; Both sides of the rod 6 and the other end are hinged on the rotating seat 16 provided on the lower chassis 1, so that the two reinforcing rods 15 can be turned over along the width direction of the middle and upper chassis 2 along with the supporting rod 6 and prevent the supporting rod 6 from moving along the width direction of the upper chassis 2. The length direction of the middle and upper chassis 2 is turned over. As can be seen from the above structure, each middle and upper frame locking device 4 is equipped with a middle and upper frame reinforcement device 14, and the middle and upper frame reinforcement device 14 includes two reinforcement rods 15; one end of the reinforcement rod 15 is hinged on one side of the support rod 6, and the other end is hinged On the rotating seat 16 provided on the lower chassis 1, the rotating seat 16 is hinged with the lower chassis 1, the two reinforcing rods 15 are symmetrically arranged with respect to the supporting rod 6, and the two reinforcing rods 15 can follow the supporting rod 6 along the middle upper layer The width direction of the bottom frame 2 is turned over and the support rod 6 is prevented from being turned over along the length direction of the middle and upper bottom frame 2. When the transport vehicle is impacted in the longitudinal direction, the support rod 6 is subjected to the force of turning over along the length direction of the middle and upper base frame 2. The two reinforcing rods 15 improves the stability of the support rod 6 .

Embodiment three:

See Figures 1 to 20. On the basis of the second embodiment, the multi-stage telescopic sleeve 23 includes a plurality of support sleeves 25 which are sequentially nested from the inside to the outside; The matching holes 26 are used for inserting locking pins to lock the length of the multi-stage telescopic sleeve 23; The upper end is jointly hinged with an upper hinge seat 27, and the lower end of the upper frame lifting device 22 and the lower end of the outermost support sleeve 25 of the multi-stage telescopic sleeve 23 are jointly hinged with a lower hinge seat 28; the upper hinge seat 27 is fixed on the bottom of the upper layer of the end. On one side of the frame 19, the lower hinge seat 28 is fixed on the side of the lower frame 1; the upper frame rotating device 24 is used to drive the outermost support sleeve 25 of the multi-stage telescopic sleeve 23 to turn over along the length direction of the lower frame 1 . It can be seen from the above structure that the multi-stage telescopic sleeve 23 includes a number of supporting sleeves 25 that are nested from the inside to the outside. The outer support sleeve 34, the middle support sleeve 35, and the inner support sleeve 36, each support sleeve 25 is provided with a number of matching holes 26 along the length of the support sleeve 25; each support sleeve 25 The inner side of the top and the outer side of the bottom are surrounded by limited parts, so that when the length of the inner support sleeve 25 is insufficient with the rise of the upper chassis 19 at the end, it will pull the outer support sleeve 25 to move up, and finally realize multi-stage expansion and contraction. The length of the sleeve 23 is adjustable. When the multi-stage telescopic sleeve 23 needs to be locked, it is only necessary to insert locking pins into the corresponding aligned matching holes 26 to lock the length of the multi-stage telescopic sleeve 23, that is, the length of each support sleeve 25 is locked. They cannot move with each other; the locking pin can be a self-locking pin.

The end rack rotation device 24 is a telescopic cylinder or a telescopic hydraulic cylinder; the telescopic end of the end rack rotation device 24 is hinged with the outermost support sleeve 25 of the multi-stage telescopic sleeve 23, and the cylinder end and the lower chassis are hinged. 1. One side is hinged; the end rack lifting device 22 is a telescopic cylinder or a telescopic hydraulic cylinder; the end rack control device also includes a stabilizing rod 29; The third eyelet 30 provided on the outermost support sleeve 25 of the multi-stage telescopic sleeve 23; the stabilizing rod 29 is used to surround the outermost support sleeve 25 of the multi-stage telescopic sleeve 23 and the lower chassis 1 A stable triangle is formed; one end of the upper-layer chassis 19 at the end is hinged with a bridge 32, and the other end is hinged with an upper-layer auxiliary chassis 33; In the state, it is connected to the middle upper chassis 2 provided above the concave bottom 5, and when the end upper chassis 19 is in the descending state, the end upper auxiliary chassis 33 can be turned down and stored under the middle upper chassis 2. It can be seen from the above structure that the end rack rotating device 24 is a telescopic cylinder or a telescopic hydraulic cylinder, and the control is simple. The multi-stage telescopic sleeve 23 and the end rack lifting device 22 are controlled to rotate through telescopic, so that the end upper rack 19 can be moved along the After being offset in the length direction, it is supported on the lower chassis 1 . The end rack rotating device 24 may also be other power mechanisms in which gears and racks cooperate. The end rack lifting device 22 is a telescopic cylinder or a telescopic hydraulic cylinder, and the control is simple. The height and angle of the end upper chassis 19 are controlled by telescopic, and the end rack lifting device 22 is also conveniently built into the multi-stage telescopic sleeve 23. The end rack lifting device 22 can also be a power mechanism with other gears and racks. Since the multi-stage telescopic sleeve 23 can be turned over, after the position of the multi-stage telescopic sleeve 23 is determined, it needs to be locked to prevent the end rack rotating device 24 from being in working condition all the time; The telescopic threaded rod has simple structure and low manufacturing cost. One end of the stabilizing rod 29 is hinged with the lower chassis 1, and the other end can be connected to the third hole lug 30 provided on the outermost support sleeve 25 of the multi-stage telescopic sleeve 23 through a lock pin, that is, the lock pin is inserted into the third hole lug The through hole of 30 and the corresponding through hole of the stabilizing rod 29 at this end; the stabilizing rod 29 is used to form a stable triangle with the outermost support sleeve 25 of the multi-stage telescopic sleeve 23 and the lower chassis 1 . When the multi-stage telescopic sleeve 23 needs to be rotated, the locking pin can be pulled out. The crossing board 32 adopts the existing movable crossing board, which is used for the convenience of loading and unloading the goods to the transport vehicle. The other end of the upper end chassis 19 is hinged with the auxiliary chassis 33 at the upper end, and the auxiliary chassis 33 at the upper end is used for connecting the upper middle chassis provided above the concave bottom 5 when the upper chassis 19 is in the ascending state. Chassis 2. Therefore, in the ascending state, there will be a gap between the end upper chassis 19 and the middle upper chassis 2, and the end upper auxiliary chassis 33 is used to make up the gap. If there is no gap, the end upper chassis 19 will follow the length. After the direction is shifted, it hits the middle upper chassis 2. When in the lowered state, the upper auxiliary chassis 33 at the end can be turned down and stored under the middle upper chassis 2 . The end upper-layer chassis 19 is shifted in the longitudinal direction and then connected to the lower middle-level upper chassis 2 . The upper frame control device further includes a stabilizer bar; one end of the stabilizer bar is connected to the upper bottom frame 19 at the end, and the other end is connected to the outermost support sleeve 25 of the multi-stage telescopic sleeve 23; the stabilizer bar is It is used to form a stable triangle with the multi-stage telescopic sleeve 23 and the upper bottom frame 19 at the end; the lateral stabilizer bar is detachable.

It also includes a coupler buffer device 34, a braking device 35 and a bogie 36; the coupler buffer device 34, the braking device 35 and the bogie 36 are all arranged on the lower chassis 1; the concave bottom 5 of the lower chassis 1 Correspondingly, there are two connected middle bottom frame lifting devices, and the high bottoms 20 at both ends each correspond to an end bottom frame lifting device; both sides of the upper bottom frame 19 at the end are provided with end lifting activity bars 31; The movable bar 31 can be locked in the upturned position and stored in the downturned position; the upper bottom frame 19 of the end part is an arc structure, the middle part is high, and the two sides are low; Column 17; the middle and upper shelf movable column 17 can be locked in the upturned position and stored in the downturned position; the middle upper chassis 2 is provided with a container locking device 18; the lower chassis 1 is also provided with a container lock closing device 18. It can be seen from the above structure that when the operator operates, the upper end frame 19 is placed in the upturned position and locked to play a protective role; the end upper frame 19 is connected to one side of the end upper frame 19 through a hinge seat, Therefore, the upper-layer chassis 19 at the end can be turned over, and a matching through hole is drilled on the upper-layer chassis 19 and the hinge seat, and the upper-layer chassis 19 at the end can be locked in the upturned position by inserting the locking pin; When the upper bottom frame 19 needs to be stored in the downturned position, the upper bottom frame 19 at the end can be turned over to be stored in a substantially horizontal position, so as to avoid damage when loading the container. When the operator is operating, the middle and upper rack movable bar 17 is locked in the upturned position, which plays a protective role; the middle and upper rack movable bar 17 is connected to the side of the middle upper chassis 2 through the hinge seat, so the middle and upper rack movable bar 17 can be turned over , drill a matching through hole on the middle and upper shelf movable bar 17 and the hinge seat, and insert the lock pin to make the middle and upper shelf movable bar 17 locked in the upturned position; when the middle and upper shelf movable bar 17 needs to be stored in the downwardly turned position, turn it over. The middle shelf movable bar 17 can be stored in a substantially horizontal position to avoid damage when loading the container. The upper bottom frame 19 at the end is of an arc-shaped structure, with a high middle part and low two sides. In this way, there will be a larger space between the high bottom 20 and the upper bottom frame 19 at the end to accommodate the car, because the car is also high in the middle and low on both sides. The container locking device 18 is used for supporting and securing the container. For supporting and securing containers. The coupler buffer device 34 , the braking device 35 and the bogie 36 are technologies of existing railway vehicles, and will not be repeated here.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related All technical fields are similarly included in the scope of patent protection of the present invention.

Claims (10)

1. The utility model provides a dual-purpose depressed center transport vechicle of car-container which characterized in that: comprises a lower-layer underframe (1), a middle underframe lifting device and an end underframe lifting device; the middle part of the lower-layer chassis (1) is provided with a concave bottom (5), two ends of the lower-layer chassis are provided with high bottoms (20), and the concave bottom (5) is connected with the high bottoms (20) through inclined bottoms (21); the middle underframe lifting device comprises a middle upper layer underframe (2), an upper middle frame lifting device (3) and an upper middle frame locking device (4); an upper middle frame lifting device (3) is arranged between the concave bottom (5) and the middle upper layer underframe (2); the middle upper frame lifting device (3) is used for controlling the middle upper frame (2) to vertically lift; the number of the upper middle frame locking devices (4) is at least four, and the upper middle frame locking devices are uniformly distributed on two sides of the middle upper layer underframe (2); the middle upper frame locking device (4) is used for locking the height of the middle upper layer underframe (2); the end underframe lifting device comprises an end upper layer underframe (19) and an end upper frame control device; the end part upper layer underframe (19) corresponds to a high bottom (20), four end upper frame control devices are arranged between the high bottom (20) and the end part upper layer underframe (19), and a pair of end upper frame control devices are symmetrically arranged at the front and rear positions of the end part upper layer underframe (19); the end upper frame control device comprises an end upper frame lifting device (22), a multi-stage telescopic sleeve (23) and an end upper frame rotating device (24); the end upper frame lifting device (22) is used for controlling the lifting of the end upper layer underframe (19); an end upper frame lifting device (22) is arranged in the multi-stage telescopic sleeve (23); the multi-stage telescopic sleeve (23) is used for locking the length of the end-to-upper frame lifting device (22); the end-to-upper frame rotating device (24) is used for driving the multistage telescopic sleeves (23) to turn over along the length direction of the lower-layer underframe (1).

2. The dual-purpose vehicle-container depressed bottom transport vehicle of claim 1, characterized in that: the upper middle frame locking device (4) comprises a support rod (6), a sliding piece (7), a locking piece (8) and a guide rail (9); one end of the supporting rod (6) is hinged to one side of the lower-layer chassis (1), and the other end of the supporting rod is provided with a sliding part (7); the sliding piece (7) is used for being matched with a guide rail (9) arranged below the middle upper layer underframe (2) and sliding along the width direction of the middle upper layer underframe (2); and the locking piece (8) is used for locking one end of the support rod (6) provided with the sliding piece (7) with the middle upper layer chassis (2) when the sliding piece (7) slides to the edge of the middle upper layer chassis (2).

3. The dual-purpose vehicle-container depressed bottom transport vehicle of claim 2, characterized in that: the number of the upper middle frame lifting devices (3) is at least four, and the upper middle frame lifting devices are uniformly distributed on two sides of the middle upper layer underframe (2); the middle upper frame lifting device (3) is a telescopic air cylinder or a telescopic hydraulic cylinder; the cylinder barrel of the upper middle frame lifting device (3) is fixed with the lower layer underframe (1) and used for ensuring that the stretching direction is vertical; the telescopic end part of the middle upper frame lifting device (3) is hinged with the middle upper layer underframe (2), and the end part of the cylinder barrel is hinged with the concave bottom (5).

4. The dual-purpose vehicle-container depressed bottom transport vehicle of claim 2, characterized in that: the sliding part (7) is a cylindrical sliding block and is fixed at one end of the supporting rod (6); the guide rail (9) is a guide plate with a sliding groove (10); the sliding groove (10) extends along the width direction of the middle upper-layer underframe (2); the cylindrical sliding block penetrates through the sliding groove (10).

5. The dual-purpose vehicle-container depressed bottom transport vehicle of claim 2, characterized in that: the locking piece (8) comprises a first hole lug (11) arranged on one side of the middle upper chassis (2), a second hole lug (12) arranged at one end of the support rod (6) with the sliding piece (7) and a lock pin; when the sliding piece (7) slides to the edge of the middle upper layer chassis (2), the through holes of the first hole lug (11) and the second hole lug (12) are aligned, so that the lock pin can be inserted into the through holes of the first hole lug (11) and the second hole lug (12), and one end, provided with the sliding piece (7), of the support rod (6) is locked with the middle upper layer chassis (2).

6. The dual-purpose vehicle-container depressed bottom transport vehicle of claim 5, wherein: the middle upper layer underframe (2) is provided with a strip hole (13) arranged along the width direction; the long hole (13) is used for avoiding the interference between the second hole lug (12) and the middle upper layer chassis (2) in the sliding process of the sliding piece (7).

7. The dual-purpose vehicle-container depressed bottom transport vehicle of claim 2, characterized in that: the middle underframe lifting device also comprises middle and upper frame reinforcing devices (14) in one-to-one correspondence with the number of the middle and upper frame locking devices (4); the upper middle frame reinforcing device (14) comprises two reinforcing rods (15); two strengthening rods (15) one end articulate respectively in bracing piece (6) both sides, and the other end respectively articulates on establishing rotation seat (16) in lower floor's chassis (1), makes two strengthening rods (15) can be along with bracing piece (6) along middle part upper strata chassis (2) width direction upset and avoid bracing piece (6) along middle part upper strata chassis (2) length direction upset.

8. The dual-purpose vehicle-container depressed bottom transport vehicle of claim 1, characterized in that: the multistage telescopic sleeve (23) comprises a plurality of supporting sleeves (25) which are nested in sequence from inside to outside; the supporting sleeve (25) is provided with a plurality of matching holes (26) arranged along the length direction of the supporting sleeve (25); the matching hole (26) is used for inserting a lock pin to lock the length of the multi-stage telescopic sleeve (23); the upper end of the end upper frame lifting device (22) and the upper end of the supporting sleeve (25) at the innermost part of the multi-stage telescopic sleeve (23) are hinged with an upper hinged seat (27) together, and the lower end of the end upper frame lifting device (22) and the lower end of the supporting sleeve (25) at the outermost part of the multi-stage telescopic sleeve (23) are hinged with a lower hinged seat (28) together; the upper hinge seat (27) is fixed on one side of the upper-layer underframe (19) at the end part, and the lower hinge seat (28) is fixed on one side of the lower-layer underframe (1); the end-to-upper frame rotating device (24) is used for driving the outermost support sleeve (25) of the multistage telescopic sleeve (23) to turn along the length direction of the lower-layer underframe (1).

9. The dual-purpose vehicle-container depressed bottom transport vehicle of claim 8, wherein: the end upper frame rotating device (24) is a telescopic cylinder or a telescopic hydraulic cylinder; the telescopic end part of the end upper frame rotating device (24) is hinged with the outermost support sleeve (25) of the multi-stage telescopic sleeve (23), and the end part of the cylinder barrel is hinged with one side of the lower-layer underframe (1); the end upper frame lifting device (22) is a telescopic air cylinder or a telescopic hydraulic cylinder; the end-to-end racking control device further comprises a stabilizing rod (29); one end of the stabilizing rod (29) is hinged with the lower-layer underframe (1), and the other end of the stabilizing rod is detachably connected with a third hole lug (30) arranged on a supporting sleeve (25) at the outermost part of the multi-stage telescopic sleeve (23); the stabilizing rod (29) is used for enclosing a stabilizing triangle with the outermost supporting sleeve (25) of the multistage telescopic sleeve (23) and the lower-layer underframe (1); one end of the end part upper layer underframe (19) is hinged with a ferry plate (32), and the other end is hinged with an end part upper layer auxiliary underframe (33); the end upper layer auxiliary underframe (33) is used for connecting the middle upper layer underframe (2) arranged above the concave bottom (5) when the end upper layer underframe (19) is in a rising state, and the end upper layer auxiliary underframe (33) can be turned downwards to be stored below the middle upper layer underframe (2) when the end upper layer underframe (19) is in a falling state.

10. The dual-purpose vehicle-container depressed bottom transport vehicle of claim 1, characterized in that: the device also comprises a coupler buffer device (34), a braking device (35) and a bogie (36); the coupler buffer device (34), the braking device (35) and the bogie (36) are all arranged on the lower-layer underframe (1); the concave bottom (5) of the lower-layer underframe (1) is correspondingly provided with two connected middle underframe lifting devices, and the high bottoms (20) at two ends are respectively corresponding to one end underframe lifting device; both sides of the end part upper layer underframe (19) are provided with an upper frame movable fence (31); the end upper frame movable fence (31) can be locked at an upturning position and can be stored at a downturning position; the end part upper layer underframe (19) is of an arc structure, the middle part is high, and the two sides are low; both sides of the middle upper layer underframe (2) are provided with middle upper frame movable fences (17); the upper middle frame movable rail (17) can be locked at an upturning position and can be stored at a downturning position; a container locking device (18) is arranged on the middle upper layer underframe (2); and the lower-layer underframe (1) is also provided with a container locking device (18).

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