Quick release structure of camping car wheel

Abstract

The utility model belongs to the technical field of camping cars, and particularly relates to a quick release structure of camping car wheels, which comprises a car body and a wheel component, a mounting seat is arranged on the car body, a mounting hole is arranged on the mounting seat, the wheel component comprises a wheel carrier and a wheel body which are rotatably connected, a mounting shaft is arranged on the wheel carrier, a fixing clamp is arranged on the mounting shaft, and the fixing clamp is fixed on the wheel carrier. The fixing clip and the wheel carrier are respectively arranged at two ends of the mounting hole so as to limit the axial movement of the mounting shaft and the mounting hole; the fixing clamp comprises a connecting seat connected with the mounting shaft, a U-shaped clamp is arranged on the connecting seat and provided with a clamping opening capable of elastically deforming, a clamping groove is formed in the side face of the mounting shaft, and the side face of the clamping opening is arranged in the clamping groove in a penetrating mode and prevents the connecting seat from being separated from the mounting shaft. An inclined driving face is arranged on the connecting base, an abutting portion is arranged on the U-shaped clamp, and the driving face abuts against the abutting portion and limits relative movement of the U-shaped clamp and the connecting base.

Description

Technical Field

[0001] The utility model belongs to the technical field of camping vehicles, and particularly relates to a quick-release structure for the wheels of a camping vehicle. Background Art

[0002] A camping vehicle, also called a camp wagon, is a common transportation tool during people's outdoor activities. It has a simple structure and is convenient for folding and storage, so more and more people use camping vehicles during outdoor activities.

[0003] Most camping vehicles on the market have four sets of wheel assemblies, which need to be installed at the bottom of the vehicle body respectively. Most of the wheel assemblies of traditional camping vehicles are installed on the vehicle body through bolts and nuts, but this structure is prone to loosening and the installation efficiency is relatively low. Therefore, some wheel assemblies on camping vehicles are installed through a clamping structure. For example, an electric camp wagon disclosed in Chinese Utility Model Patent CN202321431050.6 includes a vehicle body assembly, which includes a vehicle body frame and a pull handle structure that can be pulled out. The vehicle body frame includes a foldable bottom frame structure, side frame structures, front frame structures, and rear frame structures. A driving wheel, which includes a hub motor suitable for driving the vehicle body assembly. The driving wheel is rotatably connected to the rear frame structure through a driving wheel fork. The pull handle structure is hinged to the driving wheel fork. An auxiliary wheel, which is connected to the front frame structure. The driving wheel is suitable for driving the auxiliary wheel to move synchronously. The driving wheel fork includes two side plates and a bridging plate suitable for connecting the two side plates. The driving wheel includes a driving wheel shaft, and both ends of the driving wheel shaft are fixedly connected to the two side plates. The bridging plate includes a rotating shaft. The rear frame structure includes a shaft sleeve suitable for cooperating with the rotating shaft. One end of the rotating shaft is fixedly connected or integrally formed with the bridging plate. The other end of the rotating shaft includes a limiting end. The limiting end includes an upper conical surface and a lower flat surface. The shaft sleeve includes a limiting sleeve. The limiting sleeve includes a mating conical surface formed inside it, a mating flat surface formed on its upper surface, and a plurality of regularly arranged grooves circumferentially distributed. The upper conical surface is suitable for ejecting the mating flat surface. The lower flat surface is suitable for abutting against the mating flat surface to achieve axial limitation between the rotating shaft and the shaft sleeve. This structure stably connects the auxiliary wheel or the driving wheel to the vehicle body frame by clamping the limiting sleeve in the groove on the outer circumference of the rotating shaft, and during the installation process, the mating conical surface drives the deformation of the limiting sleeve and enables the auxiliary wheel or the driving wheel to be quickly fitted with the vehicle body frame.

[0004] Although the wheel and the vehicle body frame can be quickly fitted in the above structure, other tools are needed to assist when the wheel and the vehicle body frame are disassembled relatively, which is not convenient for the disassembly and maintenance of the wheels of the camp wagon. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of the utility model is to provide a quick-release structure for the wheels of a camping vehicle that is convenient for assembly and disassembly and maintenance.

[0006] The purpose of the present utility model is achieved as follows:

[0007] A quick-release structure for a camping vehicle wheel, comprising a vehicle body and a wheel assembly. An installation seat is provided on the vehicle body, and an installation hole is provided on the installation seat. The wheel assembly includes a wheel frame and a wheel body 42 rotatably arranged on the wheel frame. An installation shaft adapted to the installation hole is provided on the wheel frame, and a fixing clip is detachably arranged on the installation shaft. The fixing clip and the wheel frame are respectively arranged at both ends of the installation hole to limit the axial movement of the installation shaft and the installation hole.

[0008] The fixing clip includes a connection seat connected to the installation shaft. A U-shaped clip is movably arranged on the connection seat. The U-shaped clip has an elastically deformable bayonet. A card slot is provided on the side of the installation shaft. The side of the bayonet is inserted into the card slot to prevent the connection seat from detaching from the installation shaft. An inclined driving surface is provided on the connection seat, and a pressing portion is provided on the U-shaped clip. The driving surface abuts against the pressing portion to limit the relative movement between the U-shaped clip and the connection seat. Under the action of an external force, the pressing portion can move relative to the driving surface, so that the bayonet deforms or displaces, and then the bayonet disengages from the card slot.

[0009] The present utility model is further arranged as follows: A limiting portion is provided on the U-shaped clip. The limiting portion and the pressing portion are arranged in an L shape. A fixing block is provided on the connection seat. The driving surface is arranged on the fixing block. A limiting surface is provided on the fixing block. The limiting portion extends to one side of the limiting surface to prevent the pressing portion from detaching from the driving surface.

[0010] The present utility model is further arranged as follows: The connection seat is provided with a movable slot and a plugging hole adapted to the installation shaft. The movable slot is arranged on the side of the plugging hole and communicates with the plugging hole. The U-shaped clip is inserted into the movable slot, passes through the movable slot into the plugging hole, and cooperates with the card slot.

[0011] The present utility model is further arranged as follows: The U-shaped clip includes a control portion. Two elastic arms respectively extending to both sides of the installation shaft are provided on the control portion. The two elastic arms are respectively inserted into both sides of the card slot, and the pressing portion is arranged on the elastic arms. The relative movement between the elastic arms and the connection seat is controlled through the control portion, and the pressing portion can move relative to the driving surface.

[0012] The present utility model is further arranged as follows: Protruding portions are provided on both elastic arms. The bayonet is formed between the protruding portions. The protruding portions extend into the plugging hole and cooperate with the card slot to prevent the protruding portions from detaching from the plugging hole.

[0013] The present utility model is further arranged as follows: An inclined installation surface is provided at the upper end of the installation shaft. The installation surface can abut against the protruding portion to deform the elastic arm.

[0014] The present utility model is further arranged as follows: The plugging hole is a blind hole provided at the lower end of the connection seat, and an inclined diversion surface is provided on the outer periphery of the upper end of the installation seat.

[0015] The present utility model is further configured such that: an inclined guiding surface is provided on the connecting seat, and when an external force drives the U-shaped clamp to press against the guiding surface, the U-shaped clamp can be deformed and cooperate with the connecting seat.

[0016] The present utility model is further configured such that: the wheel assembly includes a first wheel assembly and a second wheel assembly. The first wheel assembly and the second wheel assembly are respectively close to the front and rear sides of the vehicle body. Both the first wheel assembly and the second wheel assembly include a wheel frame and a wheel body 42. Moreover, the cross-section of the mounting shaft on the wheel frame in the first wheel assembly is circular, so that the first wheel assembly is rotatably connected to the mounting seat. The cross-section of the mounting shaft on the wheel frame in the second wheel assembly is non-circular, so as to limit the relative rotation between the second wheel assembly and the mounting seat.

[0017] The present utility model is further configured such that: the mounting seat includes a fixed sleeve, and a connecting member is fixedly arranged in the fixed sleeve. The connecting member is respectively adapted to the mounting shafts in the first wheel assembly and the second wheel assembly.

[0018] The advantages of the present utility model compared with the prior art are:

[0019] In the present utility model, the axial movement of the mounting shaft and the mounting hole is restricted by the connecting seat and the U-shaped clamp, so that the wheel assembly is stably mounted on the vehicle body. The structure is simple, which is convenient for production and processing. Moreover, the U-shaped clamp has an elastically deformable bayonet. By controlling the relative movement between the U-shaped clamp and the connecting seat with an external force, the U-shaped clamp can be disengaged from the clamping groove, so that the wheel assembly can be relatively disassembled or mounted with respect to the vehicle body, which is convenient for the quick installation or disassembly of the wheel assembly and the vehicle body, and is convenient for the assembly production of the camping vehicle.

[0020] In the present utility model, the L-shaped limiting portion and pressing portion facilitate the tight connection between the pressing portion and the driving surface, avoiding the shaking between the U-shaped clamp and the connecting seat or the detachment of the U-shaped clamp from the connecting seat, preventing the U-shaped clamp from falling and affecting the normal use of the camping vehicle, and being beneficial to reducing the wear and noise between the U-shaped clamp and the connecting seat during use; the setting of the insertion hole facilitates the stable installation of the mounting shaft and the connecting seat, while the setting of the moving groove facilitates the stable movement of the U-shaped clamp and can prevent other articles from interfering with the relative movement of the U-shaped clamp, which is convenient for the user to use.

[0021] In the present utility model, the two elastic arms respectively penetrating into both sides of the clamping groove are beneficial to the stable connection between the mounting shaft and the connecting seat, avoiding the skew of the connecting seat caused by the unilateral force on the clamping groove and the U-shaped clamp during use; the setting of the protruding portion can not only prevent the accidental detachment of the U-shaped clamp from the connecting seat, but also is beneficial to the tight fit between the elastic arm and the clamping groove, avoiding the accidental detachment of the U-shaped clamp from the clamping groove during use.

[0022] In the present utility model, the inclined mounting surface can prevent the deformation or insufficient displacement of the bayonet from affecting the connection and cooperation between the U-shaped clamp and the card slot, facilitating the rapid assembly of the wheel assembly and the vehicle body; the arrangement of the blind hole and the guiding surface can reduce the entry of rainwater and the like into the mounting hole, reducing the corrosion or wear of the mounting shaft and the mounting hole, and being beneficial to extending the service life of the wheel assembly and the mounting seat; the arrangement of the guiding surface facilitates the rapid cooperation between the U-shaped clamp and the connecting seat, and is convenient for the production and assembly of the fixing clamp.

[0023] In the present utility model, the rotatably connected mounting seat and the first wheel assembly facilitate the flexible rotation of the camping vehicle, making it convenient for users to use; by replacing different connecting parts, the mounting seat can be matched with the first wheel assembly or the second wheel assembly, facilitating the production and assembly of the camping vehicle, and enabling the producer to flexibly replace different wheel assemblies according to needs. Description of the Drawings

[0024] Figure 1 is a schematic structural view of the present utility model;

[0025] Figure 2 is a schematic connection structure view of the mounting seat and the wheel carrier in the present utility model;

[0026] Figure 3 is one of the sectional views of the connection structure of the mounting seat and the wheel carrier in the present utility model;

[0027] Figure 4 is another sectional view of the connection structure of the mounting seat and the wheel carrier in the present utility model;

[0028] Figure 5 is an exploded view of the connection structure of the mounting seat and the wheel carrier in the first wheel assembly of the present utility model;

[0029] Figure 6 is an exploded view of the connection structure of the mounting seat and the wheel carrier in the second wheel assembly of the present utility model;

[0030] Figure 7 is one of the sectional views of the connecting seat in the present utility model;

[0031] Figure 8 is another sectional view of the connecting seat in the present utility model;

[0032] Figure 9 is a schematic structural view of the U-shaped clamp in the present utility model;

[0033] Figure 10 is a partial structural schematic view of the wheel carrier in the first wheel assembly of the present utility model.

[0034] The meanings of the reference numerals in the drawings: 1 - vehicle body; 11 - mounting seat; 111 - fixed sleeve; 112 - connecting part; 113 - mounting hole;

[0035] 2 - Handle; 3 - Fixed Clip; 31 - Connecting Seat; 32 - U - shaped Clip; 311 - Flow - guiding Surface; 312 - Insertion Hole;

[0036] 313 - Movable Slot; 314 - Fixed Block; 315 - Driving Surface; 316 - Limiting Surface; 317 - Guiding Surface;

[0037] 321 - Control Part; 322 - Elastic Arm; 323 - Tightening Part; 324 - Limiting Part; 325 - Protruding Part; 326 - Bayonet;

[0038] 4 - Wheel Assembly; 41 - Wheel Frame; 42 - Wheel Body; 43 - Mounting Shaft; 431 - Card Slot; 432 - Mounting Surface. Detailed Embodiment

[0039] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0040] See Figures 1 to 10 As shown, a quick - release structure for a camping vehicle wheel includes a vehicle body 1 and a wheel assembly 4. A handle 2 is provided on the front side of the vehicle body 1. An installation seat 11 is provided on the vehicle body 1, and an installation hole 113 is provided on the installation seat 11. The wheel assembly 4 includes a wheel frame 41 and a wheel body 42 rotatably arranged on the wheel frame 41. A mounting shaft 43 adapted to the installation hole 113 is provided on the wheel frame 41. A fixed clip 3 is detachably arranged on the mounting shaft 43. The fixed clip 3 and the wheel frame 41 are respectively arranged at both ends of the installation hole 113 to limit the axial movement of the mounting shaft 43 and the installation hole 113;

[0041] The fixed clip 3 includes a connecting seat 31 connected to the mounting shaft 43. A U - shaped clip 32 is movably arranged on the connecting seat 31. The U - shaped clip 32 has an elastically deformable bayonet 326. A card slot 431 is provided on the side of the mounting shaft 43. The side of the bayonet 326 is inserted into the card slot 431 to prevent the connecting seat 31 from detaching from the mounting shaft 43. An inclined driving surface 315 is provided on the connecting seat 31, and a tightening part 323 is provided on the U - shaped clip 32. The driving surface 315 abuts against the tightening part 323 to limit the relative movement between the U - shaped clip 32 and the connecting seat 31. Under the action of an external force, the tightening part 323 can move relative to the driving surface 315, so that the bayonet 326 deforms or displaces, and further the bayonet 326 disengages from the card slot 431.

[0042] In the above structure, the axial movement of the mounting shaft 43 and the mounting hole 113 is restricted by the connecting seat 31 and the U-shaped clip 32, so that the wheel assembly 4 is stably mounted on the vehicle body 1. The structure is simple and convenient for production and processing. Moreover, the U-shaped clip 32 has an elastically deformable bayonet 326. By controlling the relative movement between the U-shaped clip 32 and the connecting seat 31 with an external force, the U-shaped clip 32 can be disengaged from the card slot 431, so that the wheel assembly 4 can be relatively disassembled or mounted with respect to the vehicle body 1, facilitating the quick installation or disassembly of the wheel assembly 4 and the vehicle body 1, and facilitating the assembly production of the camping vehicle.

[0043] In the present utility model, the mounting shaft 43 can be rotatably connected to the mounting hole 113, or the mounting shaft 43 can be axially slidably arranged in the mounting hole 113. In order to facilitate the user to tow the camping vehicle to move through the handle 2, preferably, the wheel assembly 4 includes a first wheel assembly 4 and a second wheel assembly 4. The first wheel assembly 4 and the second wheel assembly 4 are respectively close to the front and rear sides of the vehicle body 1. Both the first wheel assembly 4 and the second wheel assembly 4 include a wheel frame 41 and a wheel body 42. And the cross section of the mounting shaft 43 on the wheel frame 41 in the first wheel assembly 4 is circular, so that the first wheel assembly 4 is rotatably connected to the mounting seat 11. And preferably, the card slot 431 on the mounting shaft 43 in the first wheel assembly 4 is annularly arranged on the outer periphery of the mounting shaft 43. The cross section of the mounting shaft 43 on the wheel frame 41 in the second wheel assembly 4 is non-circular, so as to restrict the relative rotation of the second wheel assembly 4 and the mounting seat 11. The rotatably connected mounting seat 11 and the first wheel assembly 4 facilitate the flexible rotation of the camping vehicle and are convenient for the user to use.

[0044] In this embodiment, the mounting seat 11 includes a fixed sleeve 111, and a connecting member 112 is fixedly arranged in the fixed sleeve 111. The connecting member 112 is respectively adapted to the mounting shafts 43 in the first wheel assembly 4 and the second wheel assembly 4. In this structure, by replacing different connecting members 112, the mounting seat 11 can be matched with the first wheel assembly 4 or the second wheel assembly 4, which is convenient for the production and assembly of the camping vehicle, and is also convenient for the producer to flexibly replace different wheel assemblies 4 according to needs.

[0045] To prevent the U-shaped card 32 from detaching from the connecting seat 31 during use, a limiting portion 324 is provided on the U-shaped card 32 in the present utility model. The limiting portion 324 and the abutting portion 323 are arranged in an L shape. A fixing block 314 is provided on the connecting seat 31, a driving surface 315 is provided on the fixing block 314, and a limiting surface 316 is provided on the fixing block 314. The limiting portion 324 extends to one side of the limiting surface 316 to prevent the abutting portion 323 from detaching from the driving surface 315. In this structure, the L-shaped limiting portion 324 and the abutting portion 323 enable the limiting portion 324 to hook on the fixing block 314, preventing the U-shaped card 32 from detaching from the connecting seat 31. Moreover, this structure facilitates the tight connection between the abutting portion 323 and the driving surface 315, preventing the U-shaped card 32 from wobbling with the connecting seat 31 or detaching from the connecting seat 31, avoiding the U-shaped card 32 from falling and affecting the normal use of the camping vehicle, and being conducive to reducing the wear and noise between the U-shaped card 32 and the connecting seat 31 during use.

[0046] An activity slot 313 and a socket hole 312 adapted to the mounting shaft 43 are provided on the connecting seat 31. The activity slot 313 is arranged on the side of the socket hole 312 and communicates with the socket hole 312. The U-shaped card 32 is inserted into the activity slot 313, passes through the activity slot 313 into the socket hole 312, and cooperates with the card slot 431. The arrangement of the socket hole 312 in this structure facilitates the stable installation of the mounting shaft 43 and the connecting seat 31, while the arrangement of the activity slot 313 facilitates the stable movement of the U-shaped card 32 and can prevent other objects from interfering with the relative movement of the U-shaped card 32, making it convenient for the user to use.

[0047] In the present utility model, the U-shaped card 32 includes a control portion 321. Two elastic arms 322 extending respectively to both sides of the mounting shaft 43 are provided on the control portion 321. The two elastic arms 322 are respectively inserted into both sides of the card slot 431, and the abutting portion 323 is provided on the elastic arms 322. By controlling the control portion 321, the relative movement between the elastic arms 322 and the connecting seat 31 is controlled, and the abutting portion 323 can move relative to the driving surface 315. The two elastic arms 322 inserted into both sides of the card slot 431 are conducive to the stable connection between the mounting shaft 43 and the connecting seat 31, preventing the connecting seat 31 from tilting due to unilateral force on the card slot 431 and the U-shaped card 32 during use.

[0048] Protruding portions 325 are provided on both elastic arms 322, and the card openings 326 are formed between the protruding portions 325. The protruding portions 325 extend into the socket hole 312 and cooperate with the card slot 431, thereby preventing the protruding portions 325 from detaching from the socket hole 312. The arrangement of the protruding portions 325 can not only prevent the U-shaped card 32 from accidentally detaching from the connecting seat 31, but also facilitate the tight cooperation between the elastic arms 322 and the card slot 431, preventing the U-shaped card 32 from accidentally detaching from the card slot 431 during use.

[0049] In this embodiment, the pressing portion 323 is provided on the elastic arm 322. When the pressing portion 323 or the limiting portion 324 is stressed, the elastic arm 322 can be driven to deform, so that the bayonet 326 deforms and disengages from the card slot 431. The elastic arm 322 and the limiting portion 324 are connected to form a V-shaped structure, and the convex portion 325 is the bottom of the V-shaped structure.

[0050] Preferably, the upper end of the mounting shaft 43 is provided with an inclined mounting surface 432. The mounting surface 432 can abut against the convex portion 325 and deform the elastic arm 322. The inclined mounting surface 432 can prevent the deformation or insufficient displacement of the bayonet 326 from affecting the connection and cooperation between the U-shaped clip 32 and the card slot 431, and is convenient for the quick assembly of the wheel assembly 4 and the vehicle body 1.

[0051] The insertion hole 312 is a blind hole provided at the lower end of the connection seat 31, and an inclined diversion surface 311 is provided on the outer periphery of the upper end of the mounting seat 11. The arrangement of the blind hole and the diversion surface 311 can reduce the entry of rainwater and the like into the mounting hole 113, reduce the corrosion or wear of the mounting shaft 43 and the mounting hole 113, and is beneficial to extending the service life of the wheel assembly 4 and the mounting seat 11.

[0052] In the present utility model, an inclined guiding surface 317 is provided on the connection seat 31. When an external force drives the U-shaped clip 32 to abut against the guiding surface 317, the U-shaped clip 32 can be deformed and cooperate with the connection seat 31. The arrangement of the guiding surface 317 facilitates the quick cooperation between the U-shaped clip 32 and the connection seat 31 and is convenient for the production and assembly of the fixing clip 3.

[0053] The guiding surface 317 is provided on one side of the insertion hole 312 close to the control portion 321. When the U-shaped clip 32 and the connection seat 31 are assembled, first, the limiting portion 324 is driven by the control portion 321 to abut against the guiding surface 317, and then the limiting portion 324 can slide along the guiding surface 317 and drive the bayonet 326 to become larger, so that the limiting portion 324 can penetrate into the insertion hole 312. Finally, the limiting portion 324 is controlled to slide along the driving surface 315 until the limiting portion 324 passes over the fixing block 314 and moves to one side of the limiting surface 316.

[0054] The above embodiments are only preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A quick-release structure for a camping vehicle wheel, comprising a vehicle body (1) and a wheel assembly (4), characterized in that: The vehicle body (1) is provided with a mounting seat (11), the mounting seat (11) is provided with a mounting hole (113), the wheel assembly (4) comprises a wheel frame (41) and a wheel body (42) rotatably arranged on the wheel frame (41), the wheel frame (41) is provided with a mounting shaft (43) adapted to the mounting hole (113), the mounting shaft (43) is detachably provided with a fixing card (3), the fixing card (3) and the wheel frame (41) are respectively arranged at two ends of the mounting hole (113) so as to limit the axial movement of the mounting shaft (43) and the mounting hole (113); The fixing card (3) comprises a connecting seat (31) connected to the installation shaft (43); a U-shaped card (32) is movably provided on the connecting seat (31); the U-shaped card (32) has a resiliently deformable bayonet (326); a bayonet slot (431) is provided on the side of the installation shaft (43); the bayonet slot (326) is inserted into the bayonet slot (431) and prevents the connecting seat (31) from being separated from the installation shaft (43); an inclined driving surface (315) is provided on the connecting seat (31); a pressing portion (323) is provided on the U-shaped card (32); the driving surface (315) abuts against the pressing portion (323) and limits the relative movement between the U-shaped card (32) and the connecting seat (31); under the action of an external force, the pressing portion (323) can move relative to the driving surface (315), thereby deforming or displacing the bayonet slot (326), and further causing the bayonet slot (326) to be separated from the slot (431).

2. The quick-release structure of a camper wheel according to claim 1, characterized in that: The U-shaped card (32) is provided with a limiting portion (324), the limiting portion (324) and the abutting portion (323) are arranged in an L shape, the connecting seat (31) is provided with a fixing block (314), the driving surface (315) is arranged on the fixing block (314), the limiting surface (316) is provided on the fixing block (314), and the limiting portion (324) extends to one side of the limiting surface (316) and prevents the abutting portion (323) from being separated from the driving surface (315).

3. The quick-release structure of a camper wheel according to claim 1, characterized in that: The connecting seat (31) is provided with a movable groove (313) and a plug hole (312) adapted to the installation shaft (43); the movable groove (313) is provided on the side of the plug hole (312) and is connected to the plug hole (312); the U-shaped card (32) is inserted into the movable groove (313); the U-shaped card (32) passes through the movable groove (313) into the plug hole (312) and cooperates with the card slot (431).

4. The quick-release structure of a camper wheel according to claim 3, characterized in that: The U-shaped card (32) comprises a control portion (321), on which are disposed two elastic arms (322) extending toward two sides of the mounting shaft (43), respectively. The two elastic arms (322) are respectively inserted into two sides of the card slot (431), and a pressing portion (323) is disposed on the elastic arms (322). The elastic arms (322) and the connecting seat (31) are controlled to move relative to each other by the control portion (321), and the pressing portion (323) and the driving surface (315) can move relative to each other.

5. The quick-release structure of a camper wheel according to claim 4, characterized in that: The elastic arms (322) are each provided with a protrusion (325), the bayonet (326) being formed between the protrusions (325), the protrusion (325) extending into the plug hole (312) and cooperating with the card slot (431), thereby preventing the protrusion (325) from being separated from the plug hole (312).

6. The quick-release structure of a camper wheel according to claim 5, characterized in that: An inclined mounting surface (432) is provided at the upper end of the mounting shaft (43), and the mounting surface (432) can abut against the raised portion (325) and deform the elastic arm (322).

7. A quick-release structure for a camper wheel according to claim 3, 4, 5 or 6, characterized in that: The plug hole (312) is a blind hole arranged at the lower end of the connecting seat (31), and an inclined flow guide surface (311) is arranged on the outer periphery of the upper end of the mounting seat (11).

8. The quick-release structure of a camper wheel according to claim 1, characterized in that: The connecting seat (31) is provided with an inclined guide surface (317), and an external force drives the U-shaped card (32) to press against the guide surface (317), so that the U-shaped card (32) can be deformed and cooperate with the connecting seat (31).

9. The quick-release structure of a camper wheel according to claim 1, characterized in that: The wheel assembly (4) comprises a first wheel assembly and a second wheel assembly, the first wheel assembly and the second wheel assembly being respectively close to the front and rear sides of the vehicle body (1), the first wheel assembly and the second wheel assembly both comprising a wheel frame (41) and a wheel body (42), and the mounting shaft (43) on the wheel frame (41) in the first wheel assembly has a circular cross section, thereby enabling the first wheel assembly to be rotationally connected to the mounting seat (11), and the mounting shaft (43) on the wheel frame (41) in the second wheel assembly has a non-circular cross section, thereby limiting the relative rotation of the second wheel assembly and the mounting seat (11).

10. The quick-release structure of a camper wheel according to claim 9, characterized in that: The mounting seat (11) comprises a fixing sleeve (111), in which a connecting piece (112) is fixedly arranged, and the connecting piece (112) is respectively adapted to the mounting shaft (43) in the first wheel assembly and the second wheel assembly.

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