CN222310649U - Frame and wheel connecting device and cargo-carrying vehicle - Google Patents

Abstract

The utility model relates to the technical field of carrying tools, and discloses a device for connecting a frame and wheels and a carrying vehicle. The connecting device for the vehicle frame and the wheels comprises two wheels, two wheel shafts, two bases, a sleeve and a sleeve, wherein the two wheels are respectively arranged on two sides of the vehicle frame, the two wheel shafts are in one-to-one corresponding separable connection with the two wheels, one ends of the wheel shafts extend out of the corresponding wheels, the two bases are arranged at the vehicle frame in parallel, one ends of the wheel shafts are inserted into the bases and are in separable connection with the bases, each base is provided with a first limiting structure, the sleeve is arranged between the two bases, the sleeve is matched with the two first limiting structures, the first limiting structures are used for preventing the sleeve from being separated from the two bases, and one ends of the wheel shafts penetrate through the bases and are inserted into the sleeve. The wheel axle is only required to be pulled out from the sleeve and the base, and then the wheel axle is inserted into the base again after being connected with the wheel, so that the quick connection and installation of the wheel and the frame are realized.

Description

Frame and wheel connecting device and carrying vehicle

Technical Field

The utility model relates to the technical field of carrying tools, in particular to a device for connecting a frame and wheels and a carrying vehicle.

Background

The carrying vehicle, such as camping vehicle, beach vehicle or outdoor portable trolley, is a foldable or detachable trolley or handcart, and is widely used in household life due to small volume after folding or disassembling, large carrying space after unfolding, and is commonly used for loading various leisure and entertainment and living goods in outdoor leisure and entertainment, and also used in daily life of common people such as street stall, close-range moving and the like.

In order to improve portability of the carrying vehicle, the carrying vehicle is often required to be folded or disassembled in the process of not using or transporting the carrying vehicle, and particularly, for larger parts, such as a beach vehicle, the wheels of the beach vehicle have larger volumes, and the carrying vehicle is required to be separated from the vehicle frame, so that the volume is reduced as much as possible, and the carrying vehicle is convenient to transport.

However, after the carrying vehicle is folded or disassembled, the parts are numerous, and the phenomenon of losing the parts is easy to occur, for example, the wheel shaft of the beach vehicle is easy to lose after being disassembled, so that the assembly and the use of the carrying vehicle are seriously affected. In addition, in the transportation process, in order to prevent the loss and breakage of the parts, the important parts often need to be finely packaged, for example, the wheel shaft is extruded and bent in the transportation process due to carelessness in packaging, and the normal rotation of the wheels of the loading vehicle is affected, so that the transportation packaging cost of the loading vehicle is seriously increased.

Therefore, the convenience of part storage after folding or disassembling of the carrying vehicle and the low cost of the transport package become very prominent.

Disclosure of utility model

In order to solve at least one aspect of the above problems, the present utility model provides a device for connecting a frame to wheels and a cart, wherein the frame is a frame of a cart or a trolley, and the device for connecting the frame to the wheels comprises:

The two wheels are respectively arranged at two sides of the frame;

The two wheel shafts are in one-to-one corresponding separable connection with the two wheels, and one end of each wheel shaft extends out of the corresponding wheel;

The two bases are arranged at the frame in parallel, one end of the wheel shaft is inserted into the bases and is detachably connected with the bases, and each base is provided with a first limiting structure;

The sleeve is arranged between the two bases and is matched with the two first limiting structures, and the first limiting structures are used for preventing the sleeve from being separated from the two bases;

When the wheel is stored, one end of the wheel shaft penetrates through the base and is inserted into the sleeve.

Optionally, the frame is provided with two protruding ends, the two protruding ends protrude forwards or backwards in parallel,

The bases are sleeved outside the corresponding extending ends in a one-to-one correspondence mode, the sleeve is arranged between the two extending ends, and one end of each wheel axle penetrates through the corresponding base and the extending end to be inserted into the sleeve.

Optionally, the first limiting structures are protruding structures, the two first limiting structures are respectively arranged in the two ends of the sleeve,

The base is provided with a first through hole, the first through hole penetrates through the base and the first limiting structure, and the wheel axle is arranged in the first through hole.

Optionally, a second through hole is formed in the center of the wheel, and a second limiting structure is arranged at the other end of the wheel shaft and used for preventing the other end of the wheel shaft from penetrating through the first through hole and the second through hole.

Optionally, the circular arc surface of shaft has seted up the circular slot, be provided with the joint part in the base, the joint part is used for the card in the circular slot, through the circular slot with the joint part cooperation makes the shaft with the base separable connection.

Optionally, the clamping component includes cardboard and spring, the cardboard with the spring all sets up in the draw-in groove that the base was seted up, the spring is used for making the cardboard with the arc surface of shaft keeps contacting, first through-hole will the draw-in groove runs through.

Optionally, the side edge of cardboard stretches out the surface of base, the spring is arranged in between the opposite side edge of cardboard and the bottom surface of draw-in groove, the cardboard has seted up the third through-hole, the shaft inserts in the third through-hole.

Optionally, the frame is a foldable frame or a detachable frame.

In addition, the utility model also provides a carrying vehicle which comprises the frame and wheel connecting device.

Optionally, the carrier vehicle is a beach vehicle.

Compared with the prior art, when the handcart or the handcart is stored, the wheel axle is separated from the base by utilizing the characteristic that the wheel axle is detachably connected with the base, the wheel axle is detachably connected with the wheels, the wheel axle is separated from the wheels, one end of the wheel axle is directly inserted into the base and the sleeve, the volume of the other end of the wheel axle exposed outside the frame is reduced as far as possible, the wheel axle is directly stored in the frame, the wheel axle is prevented from being lost, the sleeve is sleeved outside the wheel axle, the wheel axle is prevented from being extruded and deformed by other parts in the transportation process, and the fine packaging of the wheel axle is saved. When the handcart or the handcart is unfolded or assembled, the wheel axle is pulled out of the sleeve and the base, and then the wheel axle is connected with the wheels, and the wheel axle is inserted into the base again, so that the wheels and the frame are quickly connected and installed. Thereby realizing the convenience of part storage of the carrying vehicles such as the handcart, the hand buggy and the like, and leading the cost of transportation package to be low. The convenience of part storage after folding or disassembling of the carrying vehicle and the cost-effectiveness of transport package are effectively improved.

Drawings

FIG. 1 is a schematic block diagram of a frame and wheel attachment arrangement according to an embodiment of the present utility model;

fig. 2 is an enlarged view of the portion P in fig. 1;

FIG. 3 is another schematic block diagram of a frame and wheel attachment arrangement according to an embodiment of the present utility model;

Fig. 4 is an enlarged view of the Q portion in fig. 3.

The reference numerals indicate 1, a frame, 11, an extending end, 2, wheels, 3, a wheel shaft, 31, a second limiting structure, 32, a circular groove, 4, a base, 41, a first limiting structure, 42, a first through hole, 43, a clamping plate, 431, a third through hole, 44, a clamping groove, 45, a spring and 5, and a sleeve.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, it is to be understood that the terms "upper", "lower", etc. indicate an orientation or positional relationship based on the orientation or positional relationship when the product is normally used.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. The drawings of the embodiment of the utility model are provided with a coordinate system of an X axis, a Y axis and a Z axis, wherein the X axis represents the width direction of the carrying vehicle, namely the left-right direction of the carrying vehicle, the Y axis represents the length direction of the carrying vehicle, namely the front-back direction of the carrying vehicle, the Z axis represents the vertical direction, the forward direction of the Z axis represents the upper direction, and the reverse direction of the Z axis represents the lower direction.

Referring to fig. 1 to 4, the present embodiment provides a device for connecting a frame to wheels, the frame 1 is a frame of a trolley or a hand buggy, and the device for connecting a frame to wheels comprises:

Two wheels 2 respectively arranged at two sides of the frame 1;

The two wheel shafts 3 are detachably connected with the two wheels 2 in a one-to-one correspondence manner, and one end of each wheel shaft 3 extends out of the corresponding wheel 2;

the two bases 4 are arranged at the frame 1 in parallel, one end of the wheel axle 3 is inserted into the bases 4 and is detachably connected with the bases 4, and each base 4 is provided with a first limit structure 41;

The sleeve 5 is arranged between the two bases 4, the sleeve 5 is matched with the two first limiting structures 41, and the first limiting structures 41 are used for preventing the sleeve 5 from being separated from the two bases 4;

Wherein, when in storage, one end of the wheel axle 3 passes through the base 4 and is inserted into the sleeve 5.

When the handcart or the handcart is stored, the wheel axle 3 is separated from the base 4 by utilizing the characteristic that the wheel axle 3 is detachably connected with the base 4, the wheel axle 3 is detachably connected with the wheel 2, the wheel axle 3 is separated from the wheel 2, then one end of the wheel axle 3 is directly inserted into the base 4 and the sleeve 5, the volume of the other end of the wheel axle 3 exposed outside the frame 1 is reduced as far as possible, the wheel axle 3 is directly stored in the frame 1, the wheel axle 3 is prevented from being lost, the sleeve 5 is sleeved outside the wheel axle 3, the wheel axle 3 is protected, the wheel axle 3 is prevented from being extruded and deformed by other parts in the transportation process, and the fine packaging of the wheel axle 3 is saved. When the handcart or the handcart is unfolded or assembled, the wheel axle 3 is pulled out of the sleeve 5 and the base 4, the wheel axle 3 is connected with the wheel 2, and then the wheel axle 3 is inserted into the base 4 again, so that the wheel 2 and the frame 1 are quickly connected and installed. Thereby realizing the convenience of part storage of the carrying vehicles such as the handcart, the hand buggy and the like, and leading the cost of transportation package to be low. The convenience of part storage after folding or disassembling of the carrying vehicle and the cost-effectiveness of transport package are effectively improved.

Referring to fig. 1 to 4, further, the frame 1 is provided with two projecting ends 11, the two projecting ends 11 projecting forward or rearward in parallel,

The bases 4 are sleeved outside the corresponding extending ends 11 in a one-to-one correspondence manner, the sleeve 5 is arranged between the two extending ends 11, and one end of each wheel shaft 3 passes through the corresponding base 4 and the extending end 11 to be inserted into the sleeve 5.

Although the axle 3 is detachably connected with the base 4, the convenience of folding or disassembling the carrying vehicle can be improved. But this requires that the wheels 2 are arranged one-to-one at the respective projecting ends 11 to ensure that the cart is conveniently folded. This results in a poor rigidity of the frame 1 between the two projecting ends 11, which can easily cause local deformation of the frame 1 during long heavy load pushing and pulling of the beach or mud road.

Therefore, the sleeve 5 is arranged between the two extending ends 11, so that the wheel 2 frame can be conveniently stored, the bottom of the frame 1 can be effectively supported, and the rigidity of the frame 1 is improved.

Referring to fig. 1 to 4, further, the first limiting structures 41 are protruding structures, two first limiting structures 41 are respectively disposed in two ends of the sleeve 5,

The base 4 is provided with a first through hole 42, the first through hole 42 penetrates the base 4 and the first limiting structure 41, and the wheel axle 3 is arranged in the first through hole 42.

It should be noted that, in this embodiment, the first limiting structure 41 may be a protruding structure and inserted into the sleeve 5, and in addition, the first limiting structure 41 may also be a protruding structure, and the protruding surface thereof is provided with a concave structure, so that two ends of the sleeve 5 are respectively placed in the corresponding concave structures, thereby limiting the movement of the sleeve 5.

The first limiting structure 41 is of a protruding structure, so that the first limiting structure 41 is simple in appearance and convenient to injection molding.

Referring to fig. 1 to 4, further, a second through hole is formed in the center of the wheel 2, and a second limiting structure 31 is disposed at the other end of the wheel axle 3, where the second limiting structure 31 is used to prevent the other end of the wheel axle 3 from passing through the first through hole 42 and the second through hole.

The second limiting structure 31 may be a truncated cone structure or a protruding structure, so long as the wheel axle 3 can be limited to move along the axial direction and be separated from the wheel 2, or the wheel axle 3 can be prevented from falling into the sleeve 5 and cannot be taken out.

Referring to fig. 1 to 4, further, the frame 1 is a foldable frame or a detachable frame.

So as to facilitate the transportation of the foldable frame or the detachable frame after being stored.

Referring to fig. 1 to 4, further, the circular arc surface of the axle 3 is provided with a circular groove 32, the base 4 is internally provided with a clamping component, the clamping component is used for being clamped in the circular groove 32, and the axle 3 is detachably connected with the base 4 through the cooperation of the circular groove 32 and the clamping component.

The annular groove 32 is clamped by the clamping component, so that the wheel shaft 3 is prevented from moving along the axial direction, the wheel 2 is prevented from being separated from the frame 1, and the wheel 2 is connected with the frame 1.

Referring to fig. 1 to 4, further, the clamping component includes a clamping plate 43 and a spring 45, the clamping plate 43 and the spring 45 are both disposed in a clamping groove 44 formed in the base 4, and the spring 45 is used for keeping the clamping plate 43 in contact with the arc surface of the wheel axle 3. The first through hole 42 penetrates the clamping groove 44.

The spring 45 is used for keeping the clamping plate 43 in contact with the arc surface of the wheel shaft 3, so that the side wall of the wheel shaft 3 is pushed, the friction force on the axial movement of the wheel shaft 3 is increased, and the wheel shaft 3 is not easy to reciprocate.

Referring to fig. 1 to 4, further, one side edge of the clamping plate 43 protrudes from the surface of the base 4, the spring 45 is disposed between the other side edge of the clamping plate 43 and the bottom surface of the clamping groove 44, the clamping plate 43 is provided with a third through hole 431, and the wheel axle 3 is inserted into the third through hole 431.

The spring 45 between the clamping plate 43 and the bottom surface of the clamping groove 44 is deformed by pressing one side edge of the clamping plate 43 extending out of the surface of the base 4, so that the annular groove 32 of the wheel axle 3 is separated from the side wall of the third through hole 431, and then the wheel axle 3 is pulled out of the base 4, so that the separation of the base 4 and the wheel axle 3 is realized.

Conversely, when the wheel axle 3 is mounted in the base 4, the wheel axle 3 is inserted into the first through hole 42, and one side edge of the clamping plate 43 is pressed in the process that one end of the wheel axle 3 passes through the clamping groove 44, so that one end of the wheel axle 3 passes through the third through hole 431, and then one side edge of the clamping plate 43 is loosened, and when the circular ring groove 32 of the wheel axle 3 passes through the third through hole 431, the side wall of the third through hole 431 is clamped into the circular ring groove 32 under the elastic force of the spring 45, so that the wheel axle 3 is prevented from axially moving, and the fixed connection between the wheel axle 3 and the base 4 is realized.

In this way, the side edge of the clamping plate 43 extends out of the surface of the base 4, so that the detachable connection and control of the wheel axle 3 and the base 4 are realized.

Preferably, here the third through hole 431 may include a large detent through hole and a small detent through hole formed at the plate surface of the card plate 43, the large detent through hole and the small detent through hole are adjacently formed, the large detent through hole and the small detent through hole are communicated, and the diameter of the small detent through hole is larger than the inner diameter of the circular groove 32, so that the card plate 43 at the small detent through hole may be clamped in the circular groove 32. And the diameter of the large clamping through hole is larger than that of the wheel shaft 3, so that the wheel shaft 3 can be inserted into the large clamping through hole.

Preferably, the base 4 and the clamping plate 43 are respectively provided with a limiting component for preventing the clamping plate 43 from separating from the clamping groove 44, the limiting component can comprise a long through hole and a limiting rod, the long edge of the long through hole is arranged at the surface of the clamping plate 43, the long edge of the long through hole extends along the moving direction of the clamping plate 43, and the limiting rod is inserted into the long through hole and is arranged in the side wall of the clamping groove 44.

In addition, the embodiment also provides a carrying vehicle, which comprises the frame and wheel connecting device. Since the technical effect obtained by the carrying vehicle is the same as that of the connecting device of the frame and the wheels, the carrying vehicle is not explained.

Referring to fig. 1 to 4, further, the vehicle is a beach vehicle.

Considering the fact that the beach wheel of the beach vehicle is larger than the common wheel 2, the wheel 2 of the beach vehicle is more required to be separated from the frame 1 in the process of storage, so the frame and wheel connecting device in the embodiment has stronger applicability to the beach vehicle.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. A frame and wheel connection device, characterized in that the frame (1) is a frame (1) of a trolley or a trolley, the frame and wheel connection device comprising:

Two wheels (2) respectively arranged at two sides of the frame (1);

The two wheel shafts (3) are detachably connected with the two wheels (2) in a one-to-one correspondence manner, and one ends of the wheel shafts (3) extend out of the corresponding wheels (2);

The two bases (4) are arranged at the frame (1) in parallel, one end of the wheel axle (3) is inserted into the bases (4) and is detachably connected with the bases (4), and each base (4) is provided with a first limiting structure (41);

the sleeve (5) is arranged between the two bases (4), the sleeve (5) is matched with the two first limiting structures (41), and the first limiting structures (41) are used for preventing the sleeve (5) from being separated from the two bases (4);

When the wheel is stored, one end of the wheel shaft (3) penetrates through the base (4) and is inserted into the sleeve (5).

2. The frame and wheel connection according to claim 1, characterized in that the frame (1) is provided with two projecting ends (11), the two projecting ends (11) projecting forward or backward in parallel,

The bases (4) are sleeved outside the corresponding extending ends (11) in a one-to-one correspondence mode, the sleeve (5) is arranged between the two extending ends (11), and one end of each wheel shaft (3) penetrates through the corresponding base (4) and the extending end (11) to be inserted into the sleeve (5).

3. The device for connecting a vehicle frame to a vehicle wheel according to claim 1, wherein the first limiting structures (41) are protruding structures, the two first limiting structures (41) are respectively arranged in two ends of the sleeve (5),

The base (4) is provided with a first through hole (42), the first through hole (42) penetrates through the base (4) and the first limiting structure (41), and the wheel shaft (3) is arranged in the first through hole (42).

4. A frame and wheel connection according to claim 3, wherein a second through hole is provided in the center of the wheel (2), a second limit structure (31) is provided at the other end of the wheel axle (3), and the second limit structure (31) is used for preventing the other end of the wheel axle (3) from passing through the first through hole (42) and the second through hole.

5. A vehicle frame and wheel connecting device according to claim 3, wherein the circular arc surface of the wheel axle (3) is provided with a circular ring groove (32), the base (4) is internally provided with a clamping component, the clamping component is used for being clamped in the circular ring groove (32), and the wheel axle (3) is detachably connected with the base (4) through the cooperation of the circular ring groove (32) and the clamping component.

6. The vehicle frame and wheel connecting device according to claim 5, characterized in that the clamping component comprises a clamping plate (43) and a spring (45), the clamping plate (43) and the spring (45) are both arranged in a clamping groove (44) formed in the base (4), the spring (45) is used for enabling the clamping plate (43) to keep contact with the arc surface of the wheel axle (3), and the clamping groove (44) is penetrated by the first through hole (42).

7. The device for connecting a vehicle frame to a vehicle wheel according to claim 6, wherein one side edge of the clamping plate (43) extends out of the surface of the base (4), the spring (45) is disposed between the other side edge of the clamping plate (43) and the bottom surface of the clamping groove (44), the clamping plate (43) is provided with a third through hole (431), and the wheel axle (3) is inserted into the third through hole (431).

8. The frame and wheel connection according to any one of claims 1 to 7, characterized in that the frame (1) is a foldable frame or a detachable frame.

9. A load carrying vehicle comprising a frame and wheel connection arrangement according to any one of claims 1 to 8.

10. The vehicle of claim 9, wherein the vehicle is a beach vehicle.