Connecting structure and automobile

Abstract

The utility model provides a connecting structure and an automobile, the connecting structure comprises a first mounting body, a second mounting body, a pressing push rod and a cam, the second mounting body is provided with a mounting groove and a mounting hole communicated with the mounting groove; the first mounting body is inserted into the mounting groove, and the pressing push rod is mounted in the mounting hole in a sliding manner; the cam is rotationally mounted on the second mounting body, and the cam is located at the end, away from the mounting groove, of the pressing push rod; and the cam is used for pushing the pressing push rod to press the first mounting body in the rotating process. Rapid disassembly and assembly can be achieved through the first installation body and the second installation body, and the disassembly and assembly efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and particularly relates to a connection structure and an automobile. Background Art

[0002] At present, the mainstream connection method for non-load-bearing bodies is bolt connection, in which the body is fixed to the chassis frame by bolts. When assembling the body, each bolt needs to be loosened and tightened. This connection method has cumbersome assembly and disassembly steps and low assembly and disassembly efficiency. In addition, after multiple disassembly and assembly, the bolt connection structure is easily damaged, which will lead to reduced structural reliability. Utility Model Content

[0003] The utility model aims at the technical problems of low efficiency of assembly and disassembly of bolt connections between a vehicle body and a chassis in the prior art, and provides a connection structure and a device.

[0004] In view of the above technical problems, an embodiment of the utility model provides a connection structure, including a first mounting body, a second mounting body, a pressing push rod and a cam, wherein the second mounting body is provided with a mounting groove and a mounting hole connected to the mounting groove; the first mounting body is inserted into the mounting groove, and the pressing push rod is slidably installed in the mounting hole;

[0005] The cam is rotatably mounted on the second mounting body, and the cam is located at an end of the pressing push rod away from the mounting groove; the cam is used to push the pressing push rod to press the first mounting body during the rotation process.

[0006] Optionally, a limiting groove is provided on the first mounting body; the cam is used to rotate when the limiting groove is opposite to the mounting hole, so as to push the pressing push rod to insert into the limiting groove and press the first mounting body.

[0007] Optionally, a first guide surface is provided on the inner side wall of the limiting groove; and a second guide surface adapted to the first guide surface is provided at one end of the clamping push rod away from the cam.

[0008] Optionally, the connecting structure also includes a compression spring sleeved on the clamping push rod; a first abutment surface is provided on the clamping push rod; a second abutment surface is provided on the inner side wall of the mounting hole; the first abutment surface and the second abutment surface are arranged opposite to each other and form an installation space, the compression spring is installed in the installation space, and the opposite ends of the compression spring abut against the first abutment surface and the second abutment surface respectively.

[0009] Optionally, the connection structure further includes an elastic bushing; the elastic bushing is arranged between the first mounting body and the second mounting body.

[0010] Optionally, the first mounting body and the elastic bushing are an integral vulcanized structure; or

[0011] The second mounting body and the elastic bushing are an integral vulcanized structure.

[0012] Optionally, the second mounting body includes a seat body and a mounting arm connected to the outer side wall of the seat body; the mounting groove and the mounting hole are both arranged on the seat body, the cam is rotatably mounted on the mounting arm, and the cam is arranged opposite to the mounting hole.

[0013] Optionally, the mounting arm includes a first support arm and a second support arm connected to the same outer side wall of the base body; the first support arm and the second support arm are arranged in parallel and spaced apart, the cam is rotatably connected to the first support arm and the second support arm, and the cam is located between the first support arm and the second support arm.

[0014] Optionally, the connecting structure includes at least two cams; the number of the clamping push rods and the mounting holes is consistent with the number of the cams; and at least two of the cams are spaced apart around the first mounting body.

[0015] The utility model also provides a car, comprising a vehicle body, a chassis, and the above-mentioned connection structure; the first mounting body is mounted on the vehicle body, and the second mounting body is mounted on the chassis.

[0016] In the utility model, the connecting structure includes a first mounting body, a second mounting body, a clamping push rod and a cam, the second mounting body is provided with a mounting groove and a mounting hole connected to the mounting groove; the first mounting body is inserted into the mounting groove, and the clamping push rod is slidably installed in the mounting hole; the cam is rotatably installed on the second mounting body, and the cam is located at the end of the clamping push rod away from the mounting groove; the cam is used to push the clamping push rod to clamp the first mounting body during the rotation process.

[0017] In the utility model, since the first mounting body is inserted into the mounting groove of the second mounting body, the pressing push rod is slidably installed in the mounting hole, and the cam rotatably installed on the second mounting body is located at the end of the pressing push rod away from the mounting groove. In the process of rotating the cam, the cam will contact the pressing push rod, and the cam can push the pressing push rod to move toward the first mounting body and press the first mounting body, so that the first mounting body is fixed in the mounting groove, thereby completing the rapid fixed connection between the first mounting body and the second mounting body; and when the first mounting body and the second mounting body need to be separated, only the cam needs to be rotated in the opposite direction to make the pressing push rod loosen the first mounting body, so that the first mounting body can be taken out of the mounting groove to achieve separation from the second mounting body. In the automobile of the utility model, the rapid disassembly and assembly of the body and the chassis can be completed by the rapid disassembly and assembly between the first mounting body installed on the body and the second mounting body installed on the chassis. The structure of the connection structure is simple and the disassembly and assembly efficiency is improved. Furthermore, the connection structure of the utility model utilizes a cam to clamp and compress the push rod to fix the first mounting body and the second mounting body. After multiple disassembly and assembly, the connection structure is still not easily damaged, thus ensuring structural reliability and meeting the needs of multiple disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a structural exploded view of a connection structure provided by an embodiment of the utility model.

[0020] Figure 2 This is a schematic diagram of the state of the connection structure provided by an embodiment of the utility model before installation;

[0021] Figure 3 It is a schematic diagram of the state of the connection structure after installation provided by one embodiment of the utility model.

[0022] The reference numerals in the specification are as follows:

[0023] 1-first mounting body, 110-limiting groove, 1110-first guide surface, 2-second mounting body, 210-mounting groove, 220-mounting hole, 2210-second abutment surface, 230-seat body, 240-mounting arm, 2410-first support arm, 2420-second support arm, 3-clamping push rod, 310-first abutment surface, 320-second guide surface, 4-cam, 5-compression spring, 6-elastic bushing. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", and "middle" are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0026] like Figures 1 to 3 As shown, an embodiment of the utility model provides a connection structure, including a first mounting body 1, a second mounting body 2, a clamping push rod 3 and a cam 4, the second mounting body 2 is provided with a mounting groove 210 and a mounting hole 220 connected to the mounting groove 210; the first mounting body 1 is inserted into the mounting groove 210, and the clamping push rod 3 is slidably installed in the mounting hole 220; the cam 4 is rotatably installed on the second mounting body 2, and the cam 4 is located at the end of the clamping push rod 3 away from the mounting groove 210; the cam 4 is used to push the clamping push rod 3 to clamp the first mounting body 1 during the rotation process. Among them, the first mounting body 1 is inserted into the mounting groove 210 of the second mounting body 2, and the second mounting body 2 is provided with a mounting hole 220 connected to the mounting groove 210. Furthermore, the central axis of the mounting hole 220 is perpendicular to the central axis of the mounting groove 210, and the clamping push rod 3 is slidably installed in the mounting hole 220. During the rotation of the cam 4, the end of the clamping push rod 3 away from the mounting groove 210 will contact the cam 4 rotatably installed on the second mounting body 2, and then, the cam 4 can push the clamping push rod 3 to move toward the first mounting body 1 and clamp the first mounting body 1 during the continued rotation, and finally complete the connection between the first mounting body 1 and the second mounting body 2, that is, the first mounting body 1 is inserted into the mounting groove 210 of the second mounting body 2, and after the cam 4 pushes the clamping push rod 3 to clamp the first mounting body 1 during the rotation, the first mounting body 1 and the second mounting body 2 are in a tightly connected state. Furthermore, in a car, the first mounting body 1 can be connected to the body, and the second mounting body 2 can be connected to the chassis. Then, when the first mounting body 1 and the second mounting body 2 are tightly connected, the connection between the body and the chassis can be achieved; specifically, the first mounting body 1 can be connected to a non-load-bearing body, and can also be connected to a body of a skateboard chassis model.

[0027] In the present invention, since the first mounting body 1 is inserted into the mounting groove 210 of the second mounting body 2, the pressing push rod 3 is slidably installed in the mounting hole 220, and the cam 4 rotatably installed on the second mounting body 2 is located at the end of the pressing push rod 3 away from the mounting groove 210. In the process of rotating the cam 4, the cam 4 will contact the pressing push rod 3, and the cam 4 can push the pressing push rod 3 to move toward the first mounting body 1 and press the first mounting body 1, so that the first mounting body 1 is fixed in the mounting groove 210, thereby completing the quick fixed connection between the first mounting body 1 and the second mounting body 2; and when the first mounting body 1 and the second mounting body 2 need to be separated, only the cam 4 needs to be rotated in the opposite direction to make the pressing push rod 3 loosen the first mounting body 1, so that the first mounting body 1 can be taken out of the mounting groove 210 to achieve separation from the second mounting body 2. In the automobile of the present invention, the quick disassembly and assembly of the body and the chassis can be completed by the quick disassembly and assembly between the first mounting body 1 installed on the body and the second mounting body 2 installed on the chassis. The structure of the connection structure is simple and the disassembly and assembly efficiency is improved. Furthermore, the connection structure of the present invention utilizes the cam 4 to clamp the push rod 3 to fix the first mounting body and the second mounting body. After multiple disassembly and assembly, the connection structure is still not easily damaged, thus ensuring structural reliability and meeting the needs of multiple disassembly and assembly.

[0028] In one embodiment, if Figure 1 and Figure 2 As shown, the first mounting body 1 is provided with a limiting groove 110; the cam 4 is used to rotate when the limiting groove 110 is opposite to the mounting hole 220, so as to push the pressing push rod 3 to insert into the limiting groove 110 and press the first mounting body 1. It can be understood that the limiting groove 110 is provided on the first mounting body 1, and the first mounting body 1 is inserted into the mounting groove 210. When the limiting groove 110 is opposite to the mounting hole 220, the cam 4 is rotated, and the cam 4 pushes the pressing push rod 3 to move toward the first mounting body 1, and is inserted into the limiting groove 110 to press the first mounting body 1. On the basis of completing the quick connection between the first mounting body 1 and the second mounting body 2, the connection stability of the first mounting body 1 and the second mounting body 2 is enhanced, thereby enhancing the connection reliability. When the first mounting body 1 is connected to the vehicle body and the second mounting body 2 is connected to the chassis, the connection reliability between the vehicle body and the chassis is enhanced; similarly, when the car needs to be replaced with a different vehicle body, at this time, it is only necessary to rotate the cam 4 in the opposite direction. At this time, the end of the clamping push rod 3 close to the mounting groove 210 is pulled out in the direction of the cam 4, so that the clamping push rod 3 is no longer stuck in the limiting groove 110, and the first mounting body 1 can be pulled upward, thereby completing the disassembly and separation of the first mounting body 1 and the second mounting body 2. In this way, while realizing the rapid disassembly and assembly of the vehicle body, one chassis can also be matched and connected to multiple different vehicle bodies.

[0029] In one embodiment, if Figure 2 and Figure 3As shown, a first guide surface 1110 is provided on the inner side wall of the limiting groove 110; and a second guide surface 320 adapted to the first guide surface 1110 is provided at one end of the pressing push rod 3 away from the cam 4. It can be understood that the limiting groove 110 on the first mounting body 1 is provided with a first guide surface 1110, and the end of the pressing push rod 3 away from the cam 4 is provided with a second guide surface 320. The first guide surface 1110 and the second guide surface 320 can be plane guide surfaces. At this time, the first guide surface 1110 and the second guide surface 320 are arranged in parallel. When the cam 4 rotates and pushes the pressing push rod 3 into the limiting groove 110, the first guide surface 1110 will gradually fit with the second guide surface 320, thereby guiding the pressing push rod 3 inserted into the limiting groove 110, and smoothly introducing the end of the pressing push rod 3 close to the mounting groove 210 into the limiting groove 110 and pressing the first mounting body 1.

[0030] In one embodiment, if Figures 1 to 3 As shown, the connection structure also includes a compression spring 5 sleeved on the clamping push rod 3; the clamping push rod 3 is provided with a first abutting surface 310; the inner side wall of the mounting hole 220 is provided with a second abutting surface 2210; the first abutting surface 310 and the second abutting surface 2210 are arranged opposite to each other and form an installation space, the compression spring 5 is installed in the installation space, and the opposite ends of the compression spring 5 are respectively abutted against the first abutting surface 310 and the second abutting surface 2210. It can be understood that the clamping push rod 3 is provided with a first abutting surface 310, the inner side wall of the mounting hole 220 is provided with a second abutting surface 2210, and the diameter of the clamping push rod 3 is smaller than the diameter of the mounting hole 220, as shown in FIG. Figure 2 and Figure 3As shown, when the clamping push rod 3 is installed in the mounting hole 220, the first abutting surface 310 and the second abutting surface 2210 are spaced a certain distance apart, thereby forming an installation space between the first abutting surface 310 and the second abutting surface 2210, and the compression spring 5 is sleeved on the clamping push rod 3 and placed in the installation space, and the compression spring 5 is always in a compressed state. Among them, one end of the compression spring 5 abuts against the first abutting surface 310, and the other end of the compression spring 5 abuts against the second abutting surface 2210. In this way, the compression spring 5 mounted on the clamping push rod 3 is installed in the mounting hole 220, thereby applying a thrust toward the cam 4 to the clamping push rod 3, thereby making the end of the clamping push rod 3 away from the mounting groove 210 abut against the cam 4, so that the cam 4 always maintains point contact or surface contact with the end of the clamping push rod 3 away from the mounting groove 210, that is, the cam 4 makes the compression spring 5 always in a pre-compression state; in this way, when a limiting groove 110 is provided on the first mounting body 1, if the cam 4 rotates in the opposite direction to separate the first mounting body 1 and the second mounting body 2, the compression spring 5 will push the clamping push rod 3 away from the first mounting body 1 as the cam 4 rotates, and there is no need to manually push and pull the clamping push rod 3, so that the clamping push rod 3 can be automatically disengaged from the limiting groove 110, which is convenient for realizing automatic disassembly between the first mounting body 1 and the second mounting body 2.

[0031] Furthermore, the cam 4 includes a wheel arm and a rotating part connected to the wheel arm, and the rotating part is rotatably mounted on the second mounting body 2. Figure 2 As shown, when the first mounting body 1 and the second mounting body 2 are not mounted, the wheel arm of the cam 4 faces upwards. At this time, the compression spring 5 is compressed in the mounting space and pushes the pressing push rod 3 to abut against the cam 4. After the first mounting body 1 is inserted into the mounting groove 210 of the second mounting body 2 and the limit groove 110 is opposite to the mounting hole 220, if the first mounting body 1 and the second mounting body 2 need to be fixedly connected, the wheel arm is pulled down (i.e., the pull rod 3 is pulled upwards). Figure 2 The wheel arm shown in the figure rotates the cam 4 in the counterclockwise direction. At this time, the cam 4 pushes the clamping push rod 3 to move toward the first mounting body 1, and the compression spring 5 is further compressed. The first guide surface 1110 on the inner side wall of the limiting groove 110 and the second guide surface 320 on the clamping push rod 3 fit together to guide the clamping push rod 3 inserted into the limiting groove 110, and then the end of the clamping push rod 3 close to the mounting groove 210 is smoothly introduced into the limiting groove 110 and the first mounting body 1 is clamped. After that, the cam 4 continues to rotate and continuously compresses the compression spring 5, so that the rotation position of the cam 4 is as shown in FIG. Figure 3 As shown in FIG. 1 , the upper pull wheel arm (i.e., the pull wheel arm) passes the highest point, thereby forming a self-locking, so that the first installation body 1 and the second installation body 2 are quickly and stably fixedly connected. When the first installation body 1 and the second installation body 2 need to be separated, the upper pull wheel arm (i.e., the pull wheel arm) Figure 3The wheel arm shown in the figure rotates the cam 4 in a clockwise direction. At this time, under the elastic force of the compression spring 5, the pressing push rod 3 is pushed to gradually move toward the cam 4, and then the end of the pressing push rod 3 close to the installation groove 210 smoothly slides out of the limit groove 110, thereby releasing the locking state between the first installation body 1 and the second installation body 2, that is, completing the rapid disassembly of the first installation body 1 and the second installation body 2. The embodiment of the utility model improves the disassembly and assembly efficiency of the first installation body 1 and the second installation body 2, and realizes the reliability of repeated use of the connection structure.

[0032] In one embodiment, if Figure 2 and Figure 3 As shown, the connection structure further includes an elastic bushing 6; the elastic bushing 6 is disposed between the first mounting body 1 and the second mounting body 2. It can be understood that when the first mounting body 1 and the second mounting body 2 are connected, the elastic bushing 6 can seal the connection gap between the first mounting body 1 and the second mounting body 2, thereby ensuring the tightness of the connection between the first mounting body 1 and the second mounting body 2, and preventing the occurrence of a gap between the first mounting body 1 and the second mounting body 2, resulting in an unstable connection.

[0033] In one embodiment, if Figure 2 and Figure 3 As shown, the first mounting body 1 and the elastic bushing 6 are an integral vulcanized structure; or the second mounting body 2 and the elastic bushing 6 are an integral vulcanized structure. It can be understood that the elastic bushing 6 can be installed on the first mounting body 1 or on the second mounting body 2. The first mounting body 1 and the elastic bushing 6 are an integral vulcanized structure or the second mounting body 2 and the elastic bushing 6 are an integral vulcanized structure, which can ensure the tightness of the connection between the first mounting body 1 and the second mounting body 2 and reduce the wear and looseness between the two.

[0034] In one embodiment, if Figure 1 and Figure 2 As shown, the second mounting body 2 includes a seat body 230 and a mounting arm 240 connected to the outer side wall of the seat body 230; the mounting groove 210 and the mounting hole 220 are both provided on the seat body 230, the cam 4 is rotatably mounted on the mounting arm 240, and the cam 4 is arranged opposite to the mounting hole 220. It can be understood that the mounting arm 240 is arranged on the outer side wall of the seat body 230, the mounting groove 210 and the mounting hole 220 are both provided on the seat body 230, the centerline axis of the mounting groove 210 is perpendicular to the center axis of the mounting hole 220, the cam 4 is rotatably mounted on the mounting arm 240, and the cam 4 is arranged opposite to the mounting hole 220, so that the pressing push rod 3 installed in the mounting hole 220 is also aligned with the cam 4, and then, the cam 4 can push the pressing push rod 3 to press the first mounting body 1 during the rotation process.

[0035] In one embodiment, if Figure 1 As shown, the mounting arm 240 includes a first support arm 2410 and a second support arm 2420 connected to the same outer side wall of the base body 230; the first support arm 2410 and the second support arm 2420 are arranged in parallel and spaced apart, the cam 4 is rotatably connected to the first support arm 2410 and the second support arm 2420, and the cam 4 is located between the first support arm 2410 and the second support arm 2420. It can be understood that the first support arm 2410 and the second support arm 2420 are installed on the same outer side wall of the base body 230, and the first support arm 2410 and the second support arm 2420 are arranged in parallel and spaced apart, and the cam 4 is rotatably connected between the first support arm 2410 and the second support arm 2420. The first support arm 2410 and the second support arm 2420 respectively support the cam 4 on both sides of the cam 4, so that the installation structure of the cam 4 can be made more stable; further, the cam 4 can be rotatably installed between the first support arm 2410 and the second support arm 2420 through a rotating shaft. At this time, if the cam 4 is fixedly connected to the rotating shaft, the two ends of the rotating shaft are rotatably connected to the first support arm 2410 and the second support arm 2420 respectively; or, when the rotating shaft is rotatably connected to the cam 4, the two ends of the rotating shaft are also fixedly connected to the first support arm 2410 and the second support arm 2420 respectively.

[0036] In one embodiment, if Figure 1 and Figure 2 As shown, the connection structure includes at least two cams 4; the number of the pressing push rods 3 and the mounting holes 220 is consistent with the number of the cams 4; at least two cams 4 are arranged at intervals around the first mounting body 1. It can be understood that in a specific embodiment, two cams 4 are symmetrically arranged on opposite sides of the second mounting body 2, and each cam 4 matches one mounting hole 220 and the pressing push rod 3. Arranging multiple cams 4 and multiple pressing push rods 3 around the second mounting body 2 can further enhance the stability of the connection between the first mounting body 1 and the second mounting body 2.

[0037] The utility model also provides a car, comprising a car body, a chassis, and the above-mentioned connection structure; in the car in the above-mentioned embodiment of the utility model, the connection structure comprises a first mounting body 1, a second mounting body 2, a clamping push rod 3 and a cam 4, the second mounting body 2 is provided with a mounting groove 210 and a mounting hole 220 connected to the mounting groove 210; the first mounting body 1 is inserted into the mounting groove 210, and the clamping push rod 3 is slidably installed in the mounting hole 220; the cam 4 is rotatably installed on the second mounting body 2, and the cam 4 is located at the end of the clamping push rod 3 away from the mounting groove 210; the cam 4 is used to push the clamping push rod 3 to clamp the first mounting body 1 during the rotation process; the first mounting body 1 is installed on the car body, and the second mounting body 2 is installed on the chassis. In the automobile of the above embodiment of the utility model, since the first mounting body 1 is inserted into the mounting groove 210 of the second mounting body 2, the pressing push rod 3 is slidably installed in the mounting hole 220, and the cam 4 rotatably installed on the second mounting body 2 is located at the end of the pressing push rod 3 away from the mounting groove 210. In the process of rotating the cam 4, the cam 4 will contact the pressing push rod 3, and the cam 4 can push the pressing push rod 3 to move toward the first mounting body 1 and press the first mounting body 1, so that the first mounting body 1 is fixed in the mounting groove 210, thereby completing the quick fixed connection between the first mounting body 1 and the second mounting body 2; and when the first mounting body 1 and the second mounting body 2 need to be separated, only the cam 4 needs to be rotated in the opposite direction to make the pressing push rod 3 loosen the first mounting body 1, so that the first mounting body 1 can be taken out from the mounting groove 210 to achieve separation from the second mounting body 2. In the automobile of the utility model, the quick disassembly and assembly of the body and the chassis can be completed by the quick disassembly and assembly between the first mounting body 1 installed on the body and the second mounting body 2 installed on the chassis. The structure of the connection structure is simple and the disassembly and assembly efficiency is improved. Furthermore, the connection structure of the present invention utilizes the cam 4 to clamp the push rod 3 to fix the first mounting body and the second mounting body. After multiple disassembly and assembly, the connection structure is still not easily damaged, thus ensuring structural reliability and meeting the needs of multiple disassembly and assembly.

[0038] The above are only embodiments of the connection structure and automobile of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A connection structure, characterized in that: It comprises a first mounting body, a second mounting body, a pressing push rod and a cam, wherein the second mounting body is provided with a mounting groove and a mounting hole connected to the mounting groove; the first mounting body is inserted into the mounting groove, and the pressing push rod is slidably mounted in the mounting hole; The cam is rotatably mounted on the second mounting body, and the cam is located at an end of the pressing push rod away from the mounting groove; the cam is used to push the pressing push rod to press the first mounting body during the rotation process.

2. The connection structure according to claim 1, characterized in that: The first mounting body is provided with a limiting groove; the cam is used to rotate when the limiting groove is opposite to the mounting hole, so as to push the pressing push rod to insert into the limiting groove and press the first mounting body.

3. The connection structure according to claim 2, characterized in that: A first guide surface is provided on the inner side wall of the limiting groove; and a second guide surface adapted to the first guide surface is provided at one end of the pressing push rod away from the cam.

4. The connection structure according to claim 1, characterized in that: The connecting structure also includes a compression spring sleeved on the clamping push rod; a first abutment surface is provided on the clamping push rod; a second abutment surface is provided on the inner side wall of the mounting hole; the first abutment surface and the second abutment surface are arranged opposite to each other and form an installation space, the compression spring is installed in the installation space, and the opposite ends of the compression spring abut against the first abutment surface and the second abutment surface respectively.

5. The connection structure according to claim 1, characterized in that: The connection structure further includes an elastic bushing; the elastic bushing is arranged between the first mounting body and the second mounting body.

6. The connection structure according to claim 5, characterized in that: The first mounting body and the elastic bushing are an integral vulcanized structure; or The second mounting body and the elastic bushing are an integral vulcanized structure.

7. The connection structure according to claim 1, characterized in that: The second mounting body includes a seat body and a mounting arm connected to the outer side wall of the seat body; the mounting groove and the mounting hole are both arranged on the seat body, the cam is rotatably mounted on the mounting arm, and the cam is arranged opposite to the mounting hole.

8. The connection structure according to claim 7, characterized in that: The mounting arm includes a first support arm and a second support arm connected to the same outer side wall of the base body; the first support arm and the second support arm are arranged in parallel and spaced apart, the cam is rotatably connected to the first support arm and the second support arm, and the cam is located between the first support arm and the second support arm.

9. The connection structure according to claim 1, characterized in that: The connection structure includes at least two cams; the number of the pressing push rods and the mounting holes is consistent with the number of the cams; and at least two cams are spaced apart and arranged around the first mounting body.

10. An automobile, characterized in that: It comprises a vehicle body, a chassis, and a connection structure as claimed in any one of claims 1 to 9; the first mounting body is mounted on the vehicle body, and the second mounting body is mounted on the chassis.

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