CN2918181Y - Double stroller for front and rear seats - Google Patents

Abstract

The utility model discloses a front-and-back seat double stroller for children, comprising a stroller frame, a front wheel assembly, a rear wheel assembly and a seat assembly; the frame comprises two side brackets symmetrically arranged on both sides and connected by a plurality of connecting rods; the side brackets respectively comprise a front wheel support rod, a rear wheel support rod, a front arm rod and a rear arm rod; the front wheel support rod is connected to the front wheel axle, and the rear wheel support rod is connected to the rear wheel axle; the rear end portion of the front wheel support rod and the front end portion of the rear wheel support rod are hinged to each other to form an arch with an opening upward; the front end portion of the front arm rod is hinged to the middle portion of the front wheel support rod; the rear end portion of the front arm rod and the front end portion of the rear arm rod are hinged to each other to form an arch with an opening downward; the middle portion of the rear wheel support rod is hinged to the middle portion of the rear arm rod; the front wheel support rod, the rear wheel support rod, the front arm rod and the rear arm rod are hinged to each other, so that the side brackets form a hinged four-bar linkage mechanism; a transverse support rod is also provided between the two rear wheel support rods of the side brackets, and a buckle mechanism is provided in the middle portion of the support rod.

Description

Double stroller for front and rear seats

technical field

The utility model relates to a stroller for children, in particular to a double stroller for children with front and rear seats that can realize three-dimensional telescopic folding and can still be pushed after being folded.

Background technique

The children's stroller in the prior art generally includes a stroller frame, a front wheel arranged at the bottom front part of the said stroller frame, and a rear wheel arranged at the bottom rear part of the said stroller frame, The cart frame includes side brackets located on both sides, the side brackets include a front wheel bracket, a push handle whose lower end is rotatably connected to the upper end of the front wheel bracket, and an upper end connected to the upper end of the front wheel bracket. The rear wheel bracket that is rotatably connected to the push handle, usually the cart frame includes a seat link, etc., the front end of the seat link is rotatably connected to the front wheel support, and the rear end of the seat link The part is rotatably connected with the rear wheel bracket. When the child stroller is folded, the front wheel bracket is folded relative to the rear wheel bracket, and the seat link limits the folding position of the front wheel bracket relative to the rear wheel bracket so that the Compared with the rear wheel bracket, the front wheel bracket shrinks less after folding, and the frame structure is complicated, and the assembly is cumbersome; the existing children's stroller cannot be retracted and folded in the direction of vehicle width and vehicle height, and the folded stroller cannot Push upright. Therefore, the structure of the children's stroller in the prior art is complicated, the volume after folding is still relatively large, the manufacturing and transportation costs are high, and the use is not convenient.

Utility model content

The purpose of the utility model is to provide a two-person stroller with front and rear seats that can realize three-dimensional folding, has a simple structure, is convenient to use, has a smaller volume after folding, and can still be pushed upright after folding.

The technical solution adopted by the utility model to achieve the above purpose is: a double-person stroller for children with front and rear seats, including a stroller frame, a front wheel assembly arranged at the bottom front of the cart frame, and The rear wheel assembly at the bottom rear of the cart frame, and the two seat assemblies arranged on the frame, are characterized in that: the cart frame includes symmetrically arranged on both sides, and through several connecting rods Connected two side brackets; the side brackets respectively include a front wheel strut, a rear wheel strut, a forearm rod, and a rear arm rod; the front end of the front wheel strut is connected to the front wheel shaft connected, the rear end of the rear wheel strut is connected to the rear wheel shaft; the rear end of the front wheel strut and the front end of the rear wheel strut are hinged to form an upward arch with an opening; The front end of the forearm rod is hinged at the middle of the front wheel strut; the rear end of the forearm rod is hinged with the front end of the rear arm rod to form a downward arch after the hinge; the rear wheel strut The middle part of the rod is hinged with the middle part of the rear arm rod; the mutually hinged front wheel struts, rear wheel struts, front arm rods, and rear arm rods jointly make the side bracket form a hinged four-bar linkage; Between the two rear wheel struts of the side bracket, there is also a transverse support rod, the two ends of the support rod are respectively hinged on the two rear wheel struts, and a middle part is provided to keep the support rod straight or bent. The buckle mechanism in the state; the support rod is composed of two sections of rods whose middle parts are hinged to each other, and the buckle mechanism is arranged at the hinge in the middle part of the support rod, including a tongue rod and a return spring.

The rear section of the rear arm of the side bracket is also connected with a handle bar; the lower section of the handle bar can be inserted or pulled out from the rear section of the rear arm bar; the rear arm bar The upper end is also provided with a telescopic locking mechanism for controlling the entry and exit of the handle bar; the upper end of the handle bar is also provided with a handle; the handle bar is also hinged with a pair of curved and crossed Connecting rod; one end of the bent connecting rod is hinged on the handlebar, and the other end is hinged on the rear wheel bracket of the other side bracket; the middle intersection of the two shaped connecting rods hinged to each other.

The front wheel struts, rear wheel struts, forearm rods, rear arm rods, and handle rods are all tubular members, and their respective two ends are provided with a connecting piece, and are connected with other components through the connecting piece. interconnected. Specifically, the connecting piece arranged between the front wheel strut and the rear wheel strut is a shaft joint; the connecting piece arranged between the front arm bar and the rear arm bar is a shaft joint; The connecting piece between the rods is a telescopic buckle mechanism. According to specific requirements, the above components can be made of aluminum alloy or other materials such as stainless steel.

Between the front wheel struts of the brackets on both sides, there is also a foldable front pedal in the middle; between the forearm bars of the brackets on both sides, there is also a foldable rear pedal in the middle.

The middle section of the front wheel strut of the side bracket is also hinged with a front seat horizontal connecting rod, and the rear end of the connecting rod is hinged on the described forearm rod through a connecting plate; the hinged connection between the rear arm rod and the rear wheel strut On the shaft, there is also a rear seat horizontal connecting rod hinged, the rear section of the connecting rod is bent downwards, and its end is hinged on the rear wheel strut; between the two side brackets, the front and rear parts are respectively There is a pair of oblique cross connecting rods that cross in an X shape and their cross parts are hinged; the upper ends of the two oblique cross connecting rods at the front are respectively hinged with the horizontal connecting rods of the front seat, The lower ends are respectively hinged with the front wheel struts; the upper ends of the two oblique cross-links arranged at the rear are respectively hinged with the horizontal connecting rods of the rear seat, and the lower ends are respectively hinged with the On the hinge shaft of the forearm rod and the rear boom rod.

The rear section of the horizontal connecting rod of the front seat is respectively hinged with an upward front seat back against the vertical rod; the rear section of the rear seat horizontal connecting rod is respectively hinged with an upward rear seat back against the vertical rod; Between the uprights, and between the backrest uprights of the two rear seats, there is also a seat stepless adjustment device, which is symmetrically hinged on the backrest uprights through a number of horizontally symmetrical backrest connecting plates. superior.

The seat stepless adjustment device includes an elongated body, a locking mechanism that is arranged on the body and can slide up and down, and several steel wires; one end of the steel wire is fixed on the upper end of the body, and the middle part passes through The locking mechanism, the lower end of which is fixed on the vehicle frame; the locking mechanism can continuously and steplessly adjust or change the position of the body relative to the vehicle frame by tightening or loosening the steel wire.

In the front wheel bracket, the inner side of the upper end connector is hinged with the outer side of the rear wheel bracket, and the distance between the two front wheel brackets is greater than the distance between the two rear wheel brackets, so that the front and rear The position of the wheel assembly is staggered.

An annular handle is also provided on the hinge shafts of the front wheel strut and the rear wheel strut, and an arc-shaped groove is opened on one side of the handle, and a hook is hinged at one end of the opening of the groove; the rear wheel bracket On the hinged shaft of the rear arm, there is a positioning member that cooperates with the hook and is provided with a hook connection opening; when the frame is in use, the hook is disengaged from the positioning member; when the frame When in the folded state, the hook is combined with the positioning member.

The horizontal connecting rod of the front seat, the backrest of the front seat, and the stepless adjustment device hinged on the vertical rod of the backrest of the front seat are also provided with a front seat; the horizontal connecting rod of the rear seat, the backrest of the rear seat A rear seat is provided on the stepless adjustment device hinged on the backrest pole and hinged on the backrest pole; the seat can be one of an ordinary seat or a car seat.

The utility model can also be provided with some curtains, and other auxiliary or decorative parts and articles on appropriate parts such as each connecting rod or between related parts according to actual needs.

Compared with the prior art, the utility model has the following advantages: because the side bracket forms a hinged four-link structure in the front wheel strut, the rear wheel strut, the front arm, and the rear arm, the vehicle frame can be Realize folding and stretching in the direction of vehicle length; since the handle bar can be retracted into and out of the rear arm, the frame can be retracted into the rear arm after folding, reducing the height of the folded frame; due to the components between the two sides of the bracket Both can be folded horizontally at the central hinge axis or at the midpoint, so the frame can realize telescopic folding in the vehicle width direction of the vehicle body; because the positions of the front and rear wheel assemblies are staggered, the front and rear wheels can still continue to work after the frame is folded, so that the The body can continue to stand upright and push to walk. As mentioned above, the utility model realizes the three-dimensional telescopic folding of the stroller, which not only reduces the folded volume of the children’s stroller, but also reduces the transportation cost, and has a simple structure, and is more convenient to fold and stretch, and can still be pushed after folding. , very convenient to use.

Description of drawings

Fig. 1 is the three-dimensional structural schematic diagram of the expanded use state of the vehicle frame of the embodiment of the utility model;

Fig. 2 is the front view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is the right view of Fig. 1;

Fig. 5 is the top view of Fig. 1;

Fig. 6 is a schematic diagram of the three-dimensional structure of the backrest in Fig. 1;

Fig. 7 is a three-dimensional structural schematic diagram of the folded state of the vehicle frame of the embodiment of the utility model;

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Detailed ways

Embodiment: By adopting the technical scheme of the utility model, a kind of double-person stroller with front and rear seats is constructed with an aluminum alloy tubular member as the main body of the frame.

Referring to Figures 1 to 7, a double stroller for children with front and rear seats includes a stroller frame 1, a front wheel assembly 2 arranged at the bottom front of the stroller frame 1, the assembly includes front wheels 2a and front wheels Wheel axle 2b; the rear wheel assembly 3 arranged at the bottom rear of the cart frame 1, which assembly includes a rear wheel 3a and a rear wheel axle 3b, and two seat assemblies arranged on the cart frame 1 , including a front seat assembly and a rear seat assembly; the cart frame 1 includes two side brackets 4 symmetrically arranged on both sides and connected by a plurality of connecting rods, which are respectively a left side bracket and a right side bracket; The side bracket 4 includes a front wheel strut 5, a rear wheel strut 6, a front arm 7, and a rear arm 8 respectively; the front end of the front wheel strut 5 is connected to the front wheel shaft 2b. connected, the rear end of the rear wheel strut 6 is connected to the rear wheel shaft 3b; the rear end of the front wheel strut 5 and the front end of the rear wheel strut 6 are hinged to form an opening upward The front end of the forearm 7 is hinged at the middle of the front wheel strut 5; the rear end of the forearm 7 is hinged with the front end of the rear arm 7 to form a downward opening arched; the middle part of the rear wheel strut 6 is hinged with the middle part of the rear arm 8; the mutually articulated front wheel strut 5, rear wheel strut 6, front arm 7, rear arm 8, Together, the side brackets 4 form a hinged four-bar linkage; between the two rear wheel struts 6 of the side bracket 4, a transverse support rod 9 is also provided, and the two ends of the support rod are respectively hinged on the two rear wheel struts. 6, a buckle mechanism 9a is provided in the middle to keep the support rod 9 straight or bent; the support rod 9a is composed of two sections of rods hinged in the middle, and the buckle mechanism It is arranged at the hinge in the middle of the support rod, including a tongue rod and a return spring.

The rear section of the rear arm bar 8 of the side bracket 4 is also connected with a handle bar 10; the lower section of the handle bar 10 can be inserted or pulled out from the rear section of the rear arm bar 8; The upper end of the rear arm 8 is also provided with a telescopic locking mechanism 11 that controls the entry and exit of the handle bar 10; the upper end of the handle bar 10 is also provided with a handle 12; the handle bar 10 is also hinged There is a pair of connecting rods 13 that are bent and cross each other in the middle; one end of the bent connecting rod 13 is hinged on the handle bar 10, and the other end is hinged on the rear wheel of the support 4 on the other side. On the strut 6; the intersecting parts of the middle sections of the two bent connecting rods 13 are hinged to each other.

The front wheel struts 5, rear wheel struts 6, forearm struts 7, rear arm struts 8, and handlebars 10 are all aluminum alloy tubular components, and their respective two ends are provided with a connector, and The connecting piece is connected with other components; specifically, the connecting piece set between the front wheel strut 5 and the rear wheel strut 6 is the shaft joint 14; the connection between the front arm bar 7 and the rear arm bar 8 The part is the shaft joint 15; According to specific requirements, other materials can also be used, such as stainless steel to manufacture components such as front wheel struts 5, rear wheel struts 6, forearm struts 7, rear arm struts 8, handlebars 10, and connectors thereof.

Between the front wheel struts 5 of the brackets 4 on both sides, there is also a foldable front pedal 16 in the middle; between the forearms 7 of the brackets 4 on both sides, there is also a foldable rear pedal in the middle. 17.

The middle section of the front wheel strut 5 of the side bracket is also hinged with a front seat horizontal connecting rod 18, and the rear end of the connecting rod 18 is hinged on the described forearm rod 7 through a connecting plate 19; On the hinge shaft of the rear wheel strut 6, there is also a rear seat horizontal connecting rod 20 hinged, the rear section of the connecting rod 20 is bent downward, and its end is hinged on the rear wheel strut 6; the two side brackets 4 Between them, the front part is provided with a pair of oblique cross links 21 that are X-shaped crossed and their cross parts are hinged, and the rear part is provided with a pair of oblique cross links 21 that are X-shaped crossed and their cross parts are hinged. Rod 22; the two oblique cross-links 21 located at the front, its upper ends are respectively hinged with the front seat horizontal connecting rod 18, and its lower ends are respectively hinged with the front wheel struts 5; The upper ends of the two oblique cross-links 22 arranged at the rear are respectively hinged to the horizontal connecting rod 20 of the rear seat, and the lower ends are respectively hinged to the hinge shafts of the front arm 7 and the rear arm 8 .

The rear section of the horizontal connecting rod 18 of the front seat is respectively hinged with an upward front seat against the vertical rod 23; the rear section of the horizontal connecting rod 20 of the rear seat is respectively hinged with an upward rear seat with the back against the vertical rod 24; Between the two front seats back against the vertical poles 23, and between the two rear seats against the vertical poles 24, a seat stepless adjustment device 25 is respectively provided, and the device is arranged symmetrically through two pairs of back against the connecting plates 26 arranged horizontally and symmetrically. Hinged on the described back against the vertical rods 23 and 24.

The seat stepless adjustment device 25 includes an elongated body 27, a locking mechanism 28 mounted on the body 26 and capable of sliding up and down, and several steel wires; one end of the steel wire is fixed on the body 27. The upper end and the middle part pass through the clamping mechanism 28, and the lower end is fixed on the frame 1; the clamping mechanism 28 can continuously adjust or change the body 27 steplessly by tightening or loosening the steel wire relative to the position of the frame 1.

Described front wheel support 5, the inner edge of its upper end connector shaft joint 14 is hinged with the outer side of described rear wheel support 6, and the distance between two front wheel supports 5 is greater than that of two rear wheel supports 6 The distance between them makes the positions of the front wheel assembly 2 and the rear wheel assembly 3 stagger.

On the hinge shaft 14 of the front wheel strut 5 and the rear wheel strut 6, an annular handle 29 is also provided, and an arc-shaped groove 30 is opened on one side of the handle, and a hook 31 is hinged at one end of the opening of the groove. ; on the hinge shaft of the rear wheel bracket 6 and the rear arm lever 8; a positioning member 32 is provided with a hook 31 for use in conjunction with a hook connection opening; when the vehicle frame 1 is in use, the snap The hook 31 is disengaged from the positioning member 32 ; when the vehicle frame 1 is in the folded state, the hook 31 is combined with the positioning member 32 .

Described front seat horizontal connecting rod 18, front seat backrest vertical rod 23, and on the stepless adjustment device 25 hinged on the described front seat backrest vertical rod 23, are also provided with a front seat; Rod 20, the rear seat back against the vertical rod 24, and on the stepless adjustment device 25 hinged on the rear seat back against the vertical rod 24, a rear seat is provided; the seat can be an ordinary seat or an automobile One of the seats. The utility model can also be provided with some curtains, and other auxiliary or decorative parts and articles on appropriate parts such as each connecting rod or between related parts according to actual needs.

Using the same or similar structure as described in the above-mentioned embodiments of the utility model, other double strollers with front and rear seats obtained are all within the protection scope of the utility model.

Claims (10)

1, a kind of fore-and-after seat go-cart for double child, comprise a go-cart vehicle frame, be arranged on the front component of front portion at the bottom of the described go-cart vehicle frame, be arranged on the wheel assembly at the rear portion, the end of described go-cart vehicle frame, and be arranged on two seat-assemblies on the described vehicle frame, it is characterized in that: described go-cart vehicle frame comprises two side stands that are symmetricly set on both sides and are connected by some pipe links; Described side stand comprises a front-wheel pole, a rear wheel fulcrum bar, a preceding armed lever, a back armed lever respectively; The leading section of described front-wheel pole is connected with front wheel spindle, and the rearward end of described rear wheel fulcrum bar is connected with hind axle; The rearward end of described front-wheel pole and the leading section of rear wheel fulcrum bar are hinged, and what hinged back formation one opening made progress arches upward; The leading section of armed lever before described, the middle part that is hinged on front-wheel pole; Described forearm rod rear end portion is hinged with the leading section of back armed lever, and what hinged back formed one Open Side Down arches upward; The middle part of the middle part of described rear wheel fulcrum bar and described back armed lever is hinged; The described front-wheel pole that is hinged, rear wheel fulcrum bar, preceding armed lever, back armed lever make side stand form a kink four bar linkage jointly; Between two rear wheel fulcrum bars of described side stand, also be provided with a transverse support bar, the two ends of this strut bar are hinged on respectively on two rear wheel fulcrum bars, and its middle part is provided with one and is used for making this strut bar to keep the snap device of straight or bending state.

2, children trolley according to claim 1 is characterized in that: the back armed lever back segment of described side stand also is connected with a handle stem; The hypomere of described handle stem can inject or pull out from the armed lever back segment of described back; The upper end of described back armed lever also is provided with the flexible screens mechanism of a control handle stem turnover; The upper end of described handle stem also is provided with the leader; Described handle stem also is hinged with a pair of bending shape, the cross one another pipe link in middle part of being; One end of described bending shape pipe link is hinged on the described handle stem, and its other end is hinged on the rear wheel support of opposite side support; The stage casing cross part of described two bending shape pipe links is hinged.

3, children trolley according to claim 1 and 2, it is characterized in that: described front-wheel pole, rear wheel fulcrum bar, preceding armed lever, back armed lever, handle stem all are tubular members, its both ends separately, be equipped with a connection piece, and interconnect by this attaching parts and other members.

4, according to claim 1 or 2 or 3 described children trolleys, it is characterized in that: between the front-wheel pole of described two side stands, also be provided with the folding front foot pedal in a middle part; Between the preceding armed lever of described two side stands, also be provided with the folding rear pedal in a middle part.

5, according to claim 1 or 2 or 3 described children trolleys, it is characterized in that: the stage casing of described side stand front-wheel pole, also be hinged with a front stall waling stripe, the rear end of this connecting rod is hinged on the described preceding armed lever by a plate; On the jointed shaft of described back armed lever and rear wheel fulcrum bar, also be hinged with a back seat waling stripe, the back segment of this connecting rod is bending down mutually, and its end is hinged on the rear wheel fulcrum bar; Between described two side stands, its front portion and rear portion also are respectively equipped with a pair of diagonal cross connecting rod that X-shaped intersects and its cross part is hinged that is; The described two diagonal cross connecting rods that are located at the front portion, its upper end is hinged with described front stall waling stripe respectively, and its bottom is hinged with described front-wheel pole respectively; The described two diagonal cross connecting rods that are located at the rear portion, its upper end is hinged with described back seat waling stripe respectively, and its bottom is hinged on respectively on the jointed shaft of described preceding armed lever and back armed lever.

6, children trolley according to claim 5 is characterized in that: the back segment of described front stall waling stripe is hinged with a front stall that makes progress respectively and leans against vertical rod; The back segment of described back seat waling stripe is hinged with a back seat that makes progress respectively and leans against vertical rod; Described two front stalls lean against between the vertical rod, and two back seats lean against between the vertical rod, also are respectively equipped with a seat stepless regulator, and this device is hinged on described leaning against in the vertical rod symmetrically by some connecting panels that lean against of horizontal symmetrical setting.

7, children trolley according to claim 6 is characterized in that: described seat stepless regulator comprises an elongate body, is located on the described body and can slide up and down screens mechanism and some steel wires; Described steel wire one end is fixed on the upper end of described body, and screens mechanism is passed at the middle part, and the lower end is fixed on the described vehicle frame; Described screens mechanism, by tension or lax described steel wire, step-less adjustment or change the position of body incessantly with respect to described vehicle frame.

8, according to claim 1 or 2 or 3 described children trolleys, it is characterized in that: described front-wheel support, the inner side edge of its upper end attaching parts, be hinged with the outer side edges of described rear wheel support, distance between two front-wheel supports, greater than the distance between two rear wheel supports, staggered in the position of front and back wheel assembly.

9, according to claim 1 or 2 or 3 described children trolleys, it is characterized in that: on the jointed shaft of described front-wheel pole, rear wheel fulcrum bar, also be provided with an annular handle, a side of this handle also has a deep-slotted chip breaker, and an end of described channel opening is hinged with a grab; On the jointed shaft of described rear wheel support and back armed lever, be provided with one and be used, be provided with the align member of a grab connection opening with described grab; When vehicle frame was in running condition, this grab and this align member were thrown off; When vehicle frame was in folding rounding state, this grab combined with this align member.

10, according to claim 1 or 2 or 3 described children trolleys, it is characterized in that: described front stall waling stripe, front stall lean against vertical rod, and are hinged on described front stall and lean against on the stepless regulator in the vertical rod, also are provided with a front chair; Described back seat waling stripe, back seat lean against vertical rod, and are hinged on described back seat and lean against on the stepless regulator in the vertical rod, are provided with a back seat; Described seat can be one of common seat or automotive seat.

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