Rotary quick connection structure of chassis and shell

Abstract

The utility model relates to the field of automobile models, and discloses a rotary quick connection structure of a chassis and an automobile shell, which comprises the chassis and the automobile shell. The vehicle shell is connected with a clamping piece, and the clamping piece is provided with a clamping part; the chassis is provided with a rotary quick connecting device, and the rotary quick connecting device comprises a mounting box, a clamping block and a rotary driving piece; the mounting box is provided with an inlet and outlet, the clamping block is slidably arranged on the mounting box and can be switched between a clamping position and a loosening position, the clamping block comprises a clamping part, when the clamping block is switched to the clamping position, the clamping part extends out of the mounting box through the inlet and outlet and is clamped with the clamping part, and when the clamping block is switched to the loosening position, the clamping part retracts into the mounting box; the rotary driving piece is rotatably arranged on the mounting box and comprises a driving part and a handle part, the handle part extends out of the mounting box, and the driving part is arranged in the mounting box and connected with the clamping block. According to the utility model, the automobile shell and the automobile chassis can be quickly disassembled and assembled, so that the maintenance and replacement efficiency of functional parts in the automobile model is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile models, in particular to a rotating quick-connect structure between a vehicle chassis and a vehicle shell. Background Art

[0002] The car model includes a chassis and a body, wherein the chassis is used to install functional components such as a transmission, a drive motor and a power battery, while the body is installed above the chassis and covers the above functional components. On the one hand, it protects the functional components, and on the other hand, it also serves as a major appearance component that participates in forming the unique appearance of the car model. In the related art, the body is fixedly connected to the chassis by fasteners such as screws, so the disassembly and assembly of the body is relatively cumbersome, and therefore it is not convenient to quickly repair and replace functional components such as the transmission, the drive motor and the power battery when they fail. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a rotating quick-connect structure between a chassis and a car shell, which can realize the rapid disassembly and assembly of the car shell and the chassis, thereby improving the maintenance and replacement efficiency of the internal functional components of the car model.

[0004] According to some embodiments of the utility model, the rotating quick-connect structure of the vehicle chassis and the vehicle shell comprises a vehicle chassis and a vehicle shell; a clamping piece is arranged on the side of the vehicle shell facing the vehicle chassis, and a clamping part is arranged on the clamping piece; a rotating quick-connect device is arranged on the side of the vehicle chassis facing the vehicle shell, and the rotating quick-connect device comprises an installation box, a clamping block and a rotating driving member; wherein the installation box is provided with an inlet and outlet connected to the outside, the clamping block is slidably arranged in the installation box, and can slide and switch between a clamping position and a release position, the clamping block comprises a clamping part, and the clamping part When the block is switched to the locking position, the locking portion can extend to the outside of the installation box through the inlet and outlet to be used for locking with the locking portion on the vehicle shell. When the locking block is switched to the release position, the locking portion is retracted into the installation box to release the locking with the locking portion. The rotary drive member is rotatably arranged on the installation box, and includes a driving portion and a handle portion connected to the driving portion at one end. The handle portion passes through the box body of the installation box and the other end extends out of the installation box. The driving portion is arranged inside the installation box and drives the connected locking block to drive the locking block to slide when the handle portion rotates.

[0005] The rotating quick-connect structure between the vehicle chassis and the vehicle shell according to the first embodiment of the utility model has at least the following beneficial effects:

[0006] Since the vehicle shell in the present embodiment is connected to the vehicle chassis by means of the clamping cooperation of the clamping part and the clamping part, when the vehicle shell needs to be removed from the vehicle chassis, the handle part in the rotary driving member is manually rotated so that the driving part in the rotary driving member drives the clamping block to switch from the clamping position to the releasing position, so that the clamping part can be retracted into the installation box to release the clamping connection between the clamping part and the clamping part, thereby allowing the vehicle shell to be away from the rotary quick-connect device and the vehicle chassis to complete the removal of the vehicle shell; and when the vehicle shell needs to be installed and connected to the vehicle chassis again, it is only necessary to install the vehicle shell back to the vehicle chassis again, and make the clamping part extend out of the installation box and clamp with the clamping part; therefore, through the rotary quick-connect structure of the vehicle chassis and the vehicle shell of the present embodiment, the vehicle shell and the vehicle chassis can be quickly disassembled and assembled, thereby improving the efficiency of repairing and replacing functional components inside the automobile model.

[0007] According to the rotating quick-connect structure of the vehicle chassis and the vehicle shell in some embodiments of the utility model, the rotating quick-connect device also includes a first elastic member, the first elastic member connects the clamping block and the box body of the mounting box, and the clamping block can be maintained in the clamping position under the elastic force of the first elastic member.

[0008] According to the rotating quick-connect structure of the vehicle chassis and the vehicle shell of some embodiments of the utility model, a push rod portion is provided on the side of the clamping block facing the rotating driving member, and a pushing curved surface abutting against the push rod portion is provided on the side of the driving member facing the clamping block, and the pushing curved surface has a working contour segment, and in the rotation direction of the rotating driving member, the distance from the working contour segment to the rotation axis of the rotating driving member gradually changes, so that when the rotating driving member is rotated, the clamping block is pushed to switch from the clamping position to the release position through the cooperation of the working contour segment and the push rod portion.

[0009] According to the rotating quick-connect structure of the vehicle chassis and the vehicle shell in some embodiments of the utility model, the rotating quick-connect device also includes a mounting plate, the mounting plate is arranged inside the mounting box, and is fixedly connected to the box body of the mounting box, a receiving groove is formed between the mounting plate and the box body of the mounting box, the card block can be slidably installed in the receiving groove, and the inlet and outlet are arranged at one end of the receiving groove.

[0010] According to the rotary quick-connect structure of the vehicle chassis and the vehicle shell in some embodiments of the utility model, the driving part is located on the side of the mounting plate away from the accommodating groove, and the mounting plate is provided with a sliding groove, and the push rod part is inserted into the sliding groove.

[0011] According to the rotating quick-connect structure of the vehicle chassis and the vehicle shell in some embodiments of the utility model, a truncated cone portion is provided on the side of the mounting plate facing the driving portion, and the driving portion is provided with an arc-shaped convex rib abutting and cooperating with the peripheral side surface of the truncated cone portion.

[0012] According to the rotating quick-connect structure of the vehicle chassis and the vehicle shell in some embodiments of the utility model, a push-out piece is slidably provided on the side of the box body of the installation box away from the handle portion, and a second elastic piece is provided inside the installation box. The second elastic piece is connected to the push-out piece and is used to provide an elastic force that causes one end of the push-out piece away from the handle portion to extend to the outside of the installation box.

[0013] According to the rotary quick-connect structure of the vehicle chassis and the vehicle shell in some embodiments of the utility model, a plug-in slot is provided on the side of the installation box away from the handle portion, and a plug-in block that plugs and cooperates with the plug-in slot is provided on the engaging member.

[0014] According to the rotary quick-connect structure between the vehicle chassis and the vehicle shell in some embodiments of the utility model, an introduction slope is provided on the entrance side of the plug-in slot.

[0015] According to the rotary quick-connect structure of the vehicle chassis and the vehicle shell of some embodiments of the utility model, two engaging parts are provided and are respectively arranged on the front and rear sides of the vehicle shell, and two rotary quick-connect devices are provided and are respectively arranged on the front and rear sides of the vehicle chassis corresponding to the two engaging parts.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is an exploded schematic diagram of a rotating quick-connect structure between a vehicle chassis and a vehicle shell according to an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the connection structure between the vehicle shell and the engaging member shown in FIG.

[0020] Figure 3 for Figure 1 A schematic diagram of the structure of the rotating quick-connect device from one viewing angle shown in FIG.

[0021] Figure 4 for Figure 1 A schematic structural diagram of the rotating quick-connect device from another perspective shown in FIG.

[0022] Figure 5 for Figure 1 A top view of the rotating quick-connect device shown in ;

[0023] Figure 6 for Figure 5 A cross-sectional view of the rotating quick-connect device shown in FIG. 1 along the AA direction;

[0024] Figure 7 for Figure 3 A schematic diagram of the structure of the rotating drive member shown in ;

[0025] Figure 8 for Figure 5 The cross-sectional view of the rotating quick-connect device shown in FIG.

[0026] Reference numerals:

[0027] Vehicle shell 100; engaging member 200; engaging portion 210; plug-in block 220; vehicle chassis 300; rotating quick-connect device 400; mounting box 410; upper half box body 411; plug-in slot 412; guide slope 413; inlet and outlet 414; lower half box body 415; block 420; engaging portion 421; guide slope 422; push rod portion 423; mounting slot 424; rotating driving member 430; driving portion 431; pushing curved surface 432; handle portion 433; arc-shaped convex rib 434; first elastic member 450; mounting plate 460; sliding slot 461; frustum portion 462; circular slot 463; positioning column 464; accommodating slot 470; ejecting member 480; ejector portion 481; limiting portion 482; second elastic member 490. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, front, back, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] The following is the attached Figure 1 To Attachment Figure 8 , describing the rotation quick connection structure between the vehicle chassis 300 and the vehicle shell 100 of the first embodiment of the utility model.

[0033] Reference Figure 1 and Figure 2 According to some embodiments of the present invention, the rotating quick-connect structure of the vehicle chassis 300 and the vehicle shell 100 includes a vehicle chassis 300 and a vehicle shell 100; wherein, a clamping member 200 is provided on the side of the vehicle shell 100 facing the vehicle chassis 300, and a clamping portion 210 for clamping with the vehicle chassis 300 is provided on the clamping member 200; and in order to achieve clamping with the vehicle shell 100, a rotating quick-connect device 400 is provided on the side of the vehicle chassis 300 facing the vehicle shell 100, and the position of the rotating quick-connect device 400 is opposite to the position of the clamping member 200; refer to Figures 3 to 6 The rotating quick-connect device 400 includes an installation box 410, a clamping block 420 and a rotating driving member 430. The installation box 410 is provided with an inlet and outlet 414 connected to the outside. The clamping block 420 is slidably arranged in the installation box 410 and can slide and switch between a clamping position and a release position. The clamping block 420 includes a clamping portion 421. When the clamping block 420 is switched to the clamping position, the clamping portion 421 can extend to the outside of the installation box 410 through the inlet and outlet 414, so as to cooperate with the clamping portion 210 on the vehicle shell 100 for clamping. When the clamping block 420 is switched to the released position, the clamping portion 421 is retracted into the installation box 410 to release the clamping connection with the locking portion 210; the rotating driving member 430 is rotatably arranged on the installation box 410, and includes a driving portion 431 and a handle portion 433 connected to the driving portion 431 at one end, the handle portion 433 passes through the box body of the installation box 410 and the other end extends out of the installation box 410, the driving portion 431 is arranged inside the installation box 410 and drives the connected clamping block 420, so as to drive the clamping block 420 to slide when the handle portion 433 rotates.

[0034] It should be understood that, since the vehicle shell 100 in this embodiment is connected to the vehicle chassis 300 by means of the clamping fit of the clamping portion 210 and the clamping portion 421, when it is necessary to remove the vehicle shell 100 from the vehicle chassis 300, the handle portion 433 in the rotary drive member 430 is manually rotated so that the driving portion 431 in the rotary drive member 430 drives the clamping block 420 to switch from the clamping position to the release position, so that the clamping portion 421 can be retracted into the installation box 410 to release the clamping portion 421 from the clamping portion 210, thereby making the vehicle shell 100 removable from the vehicle chassis 300. 100 can be away from the rotating quick-connect device 400 and the vehicle chassis 300 to complete the removal of the vehicle shell 100; and when the vehicle shell 100 needs to be installed and connected to the vehicle chassis 300 again, the vehicle shell 100 only needs to be installed back to the vehicle chassis 300 again, and the clamping part 421 extends out of the installation box 410 and is clamped with the clamping part 210; therefore, through the rotating quick-connect structure of the vehicle chassis 300 and the vehicle shell 100 of this embodiment, the vehicle shell 100 and the vehicle chassis 300 can be quickly disassembled and assembled, thereby improving the maintenance and replacement efficiency of the internal functional components of the automobile model.

[0035] It can be understood that, in order to keep the engaging portion 421 in the engaged state with the engaging portion 210 during the driving of the car model and avoid being disengaged due to factors such as vibration, in some embodiments, the rotating quick-connect device 400 also includes a first elastic member 450, the first elastic member 450 connects the block 420 and the box body of the mounting box 410, and the block 420 can be kept in the engaged position under the elastic force of the first elastic member 450; for example, in one embodiment, refer to Figure 6 A mounting groove 424 is provided on the side of the clamping block 420 away from the clamping portion 421, and the first elastic member 450 is selected to adopt a compression spring. The first elastic member 450 is installed in the mounting groove 424, and one end abuts against the inner wall of the mounting groove 424, and the other end abuts against the box body of the installation box 410.

[0036] It is understandable that in order to drive the block 420 to telescopically slide when the rotary drive member 430 rotates, in some embodiments, referring to Figure 6 A push rod portion 423 is provided on the side of the block 420 facing the rotary driving member 430, and a pushing curved surface 432 is provided on the side of the driving portion 431 facing the block 420, and under the action of the first elastic member 450, the push rod portion 423 can always keep abutting against the pushing curved surface 432, and the pushing curved surface 432 has a working contour segment, and in the rotation direction of the rotary driving member 430, the distance from the working contour segment to the rotation axis of the rotary driving member 430 gradually changes, so that when the rotary driving member 430 is rotated, the block 420 can be pushed to switch from the engaged position to the released position through the cooperation of the working contour segment and the push rod portion 423.

[0037] It should be understood that in one embodiment, reference Figure 6 A guide slope 422 is provided on the side of the clamping portion 421 close to the vehicle shell 100. Since the clamping block 420 is kept in the clamping position under the elastic force of the first elastic member 450, that is, the clamping portion 421 is kept in the state of extending out of the installation box 410, during the process of installing the vehicle shell 100 to the vehicle chassis 300, the clamping portion 210 on the vehicle shell 100 will be able to abut against the guide slope 422, and the guide slope 422 will give the clamping block 420 a movement along its extension direction. The pushing force component, during the installation of the vehicle shell 100, the clamping block 420 can automatically retract into the installation box 410 under the push of the clamping part 210, without the need to manually rotate the rotating driving member 430 to drive it, and when the clamping part 210 moves to the side of the clamping part 421 close to the vehicle chassis 300, the clamping block 420 can slide to the clamping position under the elastic force of the first elastic member 450, that is, the clamping part 421 automatically extends out and clamps with the clamping part 210.

[0038] It is understandable that, in order to realize the sliding connection of the block 420 on the mounting box 410, in some embodiments, reference is made to Figure 6 The rotating quick-connect device 400 also includes a mounting plate 460, which is arranged inside the mounting box 410 and fixedly connected to the box body of the mounting box 410. A receiving groove 470 is formed between the mounting plate 460 and the box body of the mounting box 410. The card block 420 can be slidably installed in the receiving groove 470, and the inlet and outlet 414 is arranged at one end of the receiving groove 470, so that the card block 420 can slide along the receiving groove 470 to make the clamping portion 421 extend to the outside of the mounting box 410 through the inlet and outlet 414. Furthermore, since the plane in which the driving portion 431 rotates is parallel to the extension and retraction direction of the card block 420, in order to prevent the mounting plate 460 from affecting the driving of the card block 420 by the driving portion 431, in some embodiments, the driving portion 431 is disposed on the side of the mounting plate 460 that is away from the accommodating groove 470, and a sliding groove 461 is disposed on the mounting plate 460, and the push rod portion 423 is passed through the sliding groove 461, thereby abutting against the pushing curved surface 432 on the driving portion 431.

[0039] For example, refer to Figure 6In some embodiments, the box body of the installation box 410 includes an upper box body 411 and a lower box body 415 that are spliced ​​and connected to each other, wherein the installation plate 460 is installed in the upper box body 411, and a receiving groove 470 is formed between the installation plate 460 and the upper box body 411, and the inlet and outlet 414 are formed on the edge of the upper box body 411 facing the installation plate 460; and the driving part 431 is installed in the lower box body 415, and one end of the handle part 433 protrudes from the lower surface of the lower box body 415, so as to facilitate the installation of the installation box 41 0 to rotate the handle portion 433. At the same time, since the driving portion 431 and the main body of the card block 420 are separated by the mounting plate 460, in order to enable the card block 420 to connect to the driving portion 431, a sliding groove 461 parallel to the sliding direction of the card block 420 is provided on the mounting plate 460, so that the push rod portion 423 on the card block 420 can pass through the sliding groove 461 to abut against the pushing curved surface 432 of the driving portion 431; at the same time, in order to facilitate the rotation connection of the rotating driving member 430 in the mounting box 410, refer to Figure 7 and Figure 8 A conical portion 462 is provided on one side of the mounting plate 460 facing the driving portion 431, and the driving portion 431 is provided with an arc-shaped convex rib 434 that abuts against the circumferential side surface of the conical portion 462. The movement of the driving portion 431 is limited by the cooperation between the arc-shaped convex rib 434 and the conical portion 462, so that the driving portion 431 can only rotate around the conical portion 462 in the mounting box 410.

[0040] It can be understood that in some embodiments, a push-up member 480 is slidably provided on the side of the box body of the installation box 410 away from the handle portion 433, one end of the push-up member 480 abuts against the locking member 200, and a second elastic member 490 is provided inside the installation box 410, the second elastic member 490 is connected to the push-up member 480, and is used to provide an elastic force that causes the end of the push-up member 480 away from the handle portion 433 to extend to the outside of the installation box 410, so that after the rotating driving member 430 pushes the card block 420 to slide to release the locking portion 421 and the locking portion 210, under the action of the second elastic member 490, the push-up member 480 will be able to push the locking member 200 and the vehicle shell 100 away from the rotating quick-connect device 400 and the vehicle chassis 300 for a distance, so as to achieve the effect of prompting the user that the locking portion 100 and the vehicle chassis 300 have been released.

[0041] For example, in one embodiment, referring to Figure 8The push-up member 480 includes a push rod portion 481 and a stop portion 482. The push rod portion 481 is slidably arranged in the lower upper box body 411, and one end of the push rod portion 481 abuts against the engaging member 200 on the vehicle shell 100. The stop portion 482 is connected to the other end of the push rod portion 481 and the peripheral side protrudes relative to the push rod portion 481 to limit the push-up member 480 from sliding out of the upper box body 411. The second elastic member 490 is a compression spring, and one end of the second elastic member 490 abuts against the stop portion 482 and the other end of the second elastic member 490 is a compression spring. The second end of the second elastic member 490 is in contact with the mounting plate 460, and when the engaging member 200 and the rotating quick-connect device 400 are in a state of being engaged, the second elastic member 490 is compressed, thereby having an elastic force to push the top rod portion 481 out of the upper half box body 411, so that after the engaging member 200 and the rotating quick-connect device 400 are released from the engaging member 200, the elastic force of the second elastic member 490 pushes the top rod portion 481 to drive the engaging member 200 and the vehicle shell 100 away from the vehicle chassis 300; and, referring to Figure 8 In order to prevent the second elastic member 490 from moving on a plane perpendicular to the extension direction of the push rod portion 481, thereby affecting the pushing effect on the vehicle shell 100, a circular groove 463 is formed on the side of the mounting plate 460 facing the upper half box body 411 at a position opposite to the truncated cone portion 462, and a positioning column 464 is correspondingly provided in the middle of the bottom of the circular groove 463, and one end of the second elastic member 490 is sleeved on the positioning column 464.

[0042] It is understandable that in order to facilitate the rapid alignment of the clamping portion 421 and the engaging portion 210 during the installation of the vehicle shell 100, in some embodiments, reference is made to Figure 2 and Figure 3 , a plug-in slot 412 is provided on the side of the installation box 410 away from the handle portion 433, and a plug-in block 220 is provided on the engaging member 200 at a position corresponding to the plug-in slot 412, and the plug-in block 220 can be plugged and matched with the plug-in slot 412, so that during the installation process of the vehicle shell 100, it is only necessary to align the plug-in block 220 and insert it into the plug-in slot 412, so that the engaging portion 210 can be automatically aligned with the engaging portion 421, and the engaging portion 210 can be automatically and quickly engaged with the engaging portion 421. In addition, in one embodiment, an introduction slope 413 is provided on the entrance side of the plug-in slot 412, so that during the insertion of the plug-in block 220 into the plug-in slot 412, the plug-in block 220 can be preliminarily guided and positioned by the guide slope 422, so that the plug-in block 220 can be quickly introduced into the depth of the plug-in slot 412, further improving the convenience of installing the vehicle shell 100.

[0043] It is understood that in one embodiment, referring to Figure 6 Each rotating quick-connect device 400 is provided with two blocks 420, and the two blocks 420 are relatively arranged on the opposite sides of the installation box 410. Figure 2, two engaging parts 210 are also correspondingly provided on opposite sides of each engaging member 200, so that the rotating quick-connect device 400 can be engaged with the engaging member 200 from both sides of the engaging member 200 by means of two sets of engaging blocks 420, so as to improve the connection strength when the vehicle shell 100 and the vehicle chassis 300 are connected. In addition, in order to drive the two engaging blocks 420 to slide at the same time, refer to Figure 6 and Figure 7 , two pushing curved surfaces 432 are also correspondingly arranged on the driving portion 431, and the two pushing curved surfaces 432 are symmetrically arranged about the rotation axis of the driving portion 431; at the same time, it should be understood that in order to make full use of the space to improve the compactness of the structure, referring to FIG. 6, in one embodiment, the ejection member 480 and the second elastic member 490 are arranged between the two clamping blocks 420, and the ejection member 480 abuts against the position between the two clamping portions 210 of the clamping member 200.

[0044] It should be understood that in some of the embodiments, connecting holes can be provided on the box body of the mounting box 410 and on the engaging member 200 so that the rotating quick-connect device 400 and the engaging member 200 can be fixedly connected to the vehicle chassis 300 and the vehicle shell 100 respectively by threaded fasteners such as screws.

[0045] It is understood that in some of these embodiments, reference Figure 2 , there are two engaging members 200, and they are respectively arranged at the front and rear sides of the vehicle shell 100. Correspondingly, referring to Figure 1 There are also two rotating quick-connect devices 400, which are respectively arranged on the front and rear sides of the vehicle chassis 300 corresponding to the two engaging parts 200. Thus, with the cooperation of the two sets of engaging parts 200 and the rotating quick-connect devices 400, the front and rear sides of the vehicle shell 100 are simultaneously engaged with the vehicle chassis 300, so as to further improve the connection strength between the vehicle shell 100 and the vehicle chassis 300.

[0046] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rotating quick-connect structure between a vehicle chassis and a vehicle shell, characterized in that: include: The vehicle shell is provided with a clamping piece on one side facing the vehicle chassis, and the clamping piece is provided with a clamping portion; The chassis is provided with a rotating quick-connect device on one side facing the vehicle shell, and the rotating quick-connect device includes a mounting box, a clamping block and a rotating driving member; wherein, The installation box is provided with an inlet and outlet connected to the outside world, the card block is slidably arranged in the installation box, and can slide and switch between a clamping position and a release position, the card block includes a clamping portion, and when the card block is switched to the clamping position, the clamping portion can extend to the outside of the installation box through the inlet and outlet for cooperating with the clamping portion on the vehicle shell, and when the card block is switched to the release position, the clamping portion is retracted into the installation box to release the clamping portion; the rotating drive member is rotatably arranged on the installation box, and includes a driving portion and a handle portion connected to the driving portion at one end, the handle portion passes through the box body of the installation box and the other end extends out of the installation box, the driving portion is arranged inside the installation box and drive-connected to the card block, so as to drive the card block to slide when the handle portion rotates.

2. The rotating quick-connect structure between a vehicle chassis and a vehicle shell according to claim 1, characterized in that: The rotating quick-connect device also includes a first elastic member, which connects the clamping block and the box body of the installation box, and the clamping block can be kept in the clamping position under the elastic force of the first elastic member.

3. The rotating quick-connect structure between a vehicle chassis and a vehicle shell according to claim 1, characterized in that: A push rod portion is provided on the side of the clamping block facing the rotary driving member, and a pushing curved surface abutting against the push rod portion is provided on the side of the driving member facing the clamping block, the pushing curved surface has a working contour segment, and in the rotation direction of the rotary driving member, the distance from the working contour segment to the rotation axis of the rotary driving member changes gradually.

4. The rotating quick-connect structure between a vehicle chassis and a vehicle shell according to claim 3, characterized in that: The rotating quick-connect device also includes a mounting plate, which is arranged inside the mounting box and fixedly connected to the box body of the mounting box. A receiving groove is formed between the mounting plate and the box body of the mounting box. The card block can be slidably installed in the receiving groove, and the inlet and outlet are arranged at one end of the receiving groove.

5. The rotating quick-connect structure between a vehicle chassis and a vehicle shell according to claim 4, characterized in that: The driving portion is located at a side of the mounting plate away from the accommodating groove, and a sliding groove is provided on the mounting plate, and the push rod portion passes through the sliding groove.

6. The rotating quick-connect structure between a vehicle chassis and a vehicle shell according to claim 4, characterized in that: A truncated cone portion is disposed on one side of the mounting plate facing the driving portion, and the driving portion is provided with an arc-shaped convex rib abutting against the peripheral side surface of the truncated cone portion.

7. The rotating quick-connect structure between a vehicle chassis and a vehicle shell according to claim 1, characterized in that: A push piece is slidably provided on a side of the box body of the installation box away from the handle portion, and one end of the push piece abuts against the engaging piece. A second elastic piece is provided inside the installation box, which is connected to the push piece and is used to provide an elastic force that causes one end of the push piece away from the handle portion to extend to the outside of the installation box.

8. The rotating quick-connect structure between a vehicle chassis and a vehicle shell according to claim 1, characterized in that: A plug-in slot is arranged on one side of the installation box away from the handle portion, and a plug-in block plug-matched with the plug-in slot is arranged on the engaging member.

9. The rotating quick-connect structure between a vehicle chassis and a vehicle shell according to claim 8, characterized in that: An inlet slope is arranged on the inlet side of the plug-in slot.

10. The rotating quick-connect structure between a vehicle chassis and a vehicle shell according to claim 1, characterized in that: There are two engaging parts, which are respectively arranged at the front and rear sides of the vehicle shell; there are two rotating quick-connect devices, which are respectively arranged at the front and rear sides of the vehicle chassis corresponding to the two engaging parts.

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