Assembled automobile traction device

Abstract

An assembled automobile traction device comprises a beam assembly, a traction assembly and an installation assembly, the beam assembly comprises a beam body and a first connecting part, the first connecting part is installed on the beam body, and the traction assembly comprises a supporting beam, a traction body and a second connecting part. The traction main body and the second connecting part are mounted on the supporting beam, the first connecting part is detachably connected with the second connecting part, the mounting assembly is detachably connected with the second connecting part, and the mounting assembly is used for detachably mounting the supporting beam on a vehicle body. The beam assembly and the traction assembly can be flexibly selected according to different vehicle types, disassembly and assembly are convenient, and good flexibility is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to an assembled automobile traction device. Background Art

[0002] The towing device, also known as the trailer hook, is an important component of the car. It can connect the trailer and the car. The towing device can be used to tow a faulty car or drag a car in a harsh environment, thereby achieving emergency rescue of the car and protecting the lives of people in the car.

[0003] Since different cars have different body heights, the rear bumper shapes are also different, which will lead to different ball head heights of the trailer hook. In the prior art, it is usually necessary to repeatedly design and develop corresponding trailer hooks according to different car models so that the ball head height of the trailer hook meets the requirements of regulatory standards, which results in high design costs and poor versatility of the trailer hook. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide an assembled automobile traction device, which has a simple structure, is easy to select and disassemble, can be applied to different models, and has good versatility and flexibility.

[0005] The utility model provides an assembled automobile traction device, comprising a beam assembly, a traction assembly and a mounting assembly, wherein the beam assembly comprises a beam body and a first connecting portion, wherein the first connecting portion is mounted on the beam body, the traction assembly comprises a support beam, a traction body and a second connecting portion, wherein the traction body and the second connecting portion are mounted on the support beam, the first connecting portion is detachably connected to the second connecting portion, the mounting assembly is detachably connected to the second connecting portion, and the mounting assembly is used to detachably mount the support beam on a vehicle body.

[0006] In one embodiment, the first connecting portion includes a positioning member and a connecting member connected along the X direction, the positioning member is connected to the beam body, the positioning member is provided with a positioning groove at one end close to the beam body, the positioning groove penetrates the positioning member along the Y direction, the beam body is installed in the positioning groove, and the connecting member is detachably connected to the second connecting portion.

[0007] In one embodiment, the second connecting portion includes a supporting member and a reinforcing member, the two supporting members are connected to the two upward ends of the reinforcing member Y, the supporting member is connected to the support beam, the connecting member is detachably connected to the supporting member, and the reinforcing member is detachably connected to the mounting assembly.

[0008] In one embodiment, the number of the first connection parts is set to two, the two first connection parts are located at one end of the beam body close to the traction assembly, and the two first connection parts are symmetrical in the Y direction.

[0009] In one embodiment, the beam assembly includes a supporting portion, which includes a first connecting plate and a second connecting plate. The two first connecting plates are located on both sides of the second connecting plate Y upward and are connected to the second connecting plate. The first connecting plate is used to connect to the beam body, and the second connecting plate is connected to the traction assembly.

[0010] In one embodiment, the traction body includes a hook body and a driving member, the driving member is used to drive the hook body to move between an extended position and a retracted position, and the driving member is installed on the support beam through a driving mounting portion.

[0011] In one embodiment, the drive mounting portion includes a first support plate, a second support plate and a guard plate, the first support plate and the second support plate are distributed at both ends of the support beam along the Z direction and are connected to the support beam, the guard plate is located on the side of the first support plate and the second support plate in the Y direction, and the guard plate is connected to the first support plate and the second support plate, one end of the guard plate in the X direction is connected to the support beam, the first support plate and the second support plate are used to install the drive member, and the guard plate is used to install the hook body.

[0012] In one embodiment, the first support plate includes a first upper plate and a first lower plate which are vertically connected, the first upper plate is used to be connected to the driving member, and the first lower plate is connected to the support beam.

[0013] In one embodiment, the second connecting plate is detachably connected to the second supporting plate, a fixing hole is provided on the second connecting plate, and a matching hole connected to the fixing hole is provided on the second supporting plate.

[0014] In one embodiment, the second support plate includes a second upper plate and a second lower plate vertically connected, the second upper plate is connected to the support beam, the second lower plate is connected to the driving member, the matching hole is opened on the second lower plate, and the second lower plate is detachably connected to the second connecting plate.

[0015] The beneficial effects of the utility model are:

[0016] By setting a beam assembly and a traction assembly, the beam assembly and the traction assembly are detachably connected, and the beam body can be installed on the support beam through the detachable connection of the first connection part and the second connection part; the mounting assembly is detachably connected to the second connection part, and the support beam can be detachably installed on the vehicle body. The beam assembly and the traction assembly can be flexibly selected according to different vehicle models. The structure is simple and the disassembly and assembly are convenient. The traction assembly is then installed on the vehicle body through the mounting assembly. It is easy to assemble and replace and has strong flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0019] Figure 2 It is an exploded schematic diagram of a beam assembly according to an embodiment of the utility model;

[0020] Figure 3 It is an exploded schematic diagram of a traction assembly according to an embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the hook body of the traction body in different positions according to one embodiment of the utility model;

[0022] Figure 5 It is an exploded schematic diagram of a mounting assembly according to an embodiment of the utility model.

[0023] In the figure:

[0024] 10-beam assembly; 11-beam body; 12-first connecting part; 121-positioning piece; 122-connecting piece; 123-positioning groove; 124-welding nut; 125-fixing stud; 13-supporting part; 131-first connecting plate; 132-second connecting plate; 1321-fixing hole;

[0025] 20-traction assembly; 21-support beam; 211-installation hole; 22-traction body; 221-hook body; 2210-extended position; 2211-retracted position; 23-second connecting part; 231-supporting member; 232-reinforcement member; 233-beam hole; 234-screw hole; 235-first fixing member; 24-drive installation part; 241-first support plate; 2411-first upper plate; 2412-first lower plate; 242-second support plate; 2421-second upper plate; 2422-second lower plate; 243-guard plate; 25-traction installation part; 251-kit;

[0026] 30-installation component; 31-contact plate; 311-first through slot; 312-functional hole; 313-second fixing piece; 32-reinforcement plate; 321-second through slot; 33-installation arm; 331-connecting hole; 34-through piece. DETAILED DESCRIPTION

[0027] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Unless otherwise clearly specified and limited, the terms "disposed", "installed", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and 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 on the utility model.

[0030] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0031] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0032] As attached Figure 1 As shown in the coordinate system in , the X, Y, and Z directions in the coordinate system are based on the vehicle coordinate system. The vehicle coordinate system is a special moving coordinate system used to describe the movement of a car. The origin of the coordinate system coincides with the center of mass of the vehicle. When the vehicle is stationary on a horizontal road, the X direction of the coordinate system refers to the direction parallel to the direction of travel of the car, the Y direction refers to the width direction of the car, and the Z direction refers to the height direction of the car.

[0033] As attached Figure 1 As shown, the assembled automobile traction device proposed by the utility model includes a beam assembly 10, a traction assembly 20 and a mounting assembly 30. Figure 2 The beam assembly 10 includes a beam body 11 and a first connecting portion 12. The first connecting portion 12 is installed on the beam body 11 and is combined with an attached Figure 3 The traction assembly 20 includes a support beam 21, a traction body 22 and a second connection part 23. The traction body 22 is installed on the support beam 21, the second connection part 23 is installed on the support beam 21, the first connection part 12 is detachably connected to the second connection part 23, and the installation assembly 30 is detachably connected to the second connection part 23. The installation assembly 30 is used to detachably install the support beam 21 on the vehicle body.

[0034] As attached Figure 2 As shown, the first connecting portion 12 includes a positioning member 121 and a connecting member 122, the positioning member 121 and the connecting member 122 are connected along the X direction, the positioning member 121 is connected to the beam body 11, and the positioning member 121 is provided with a positioning groove 123 at one end close to the beam body 11, the positioning groove 123 penetrates the positioning member 121 along the Y direction, and the positioning groove 123 is arranged in cooperation with the beam body 11, and is combined with the attached Figure 3 The connecting member 122 is detachably connected to the second connecting portion 23. When the positioning member 121 is connected to the beam body 11, the beam body 11 is installed in the positioning groove 123. Through the setting of the positioning groove 123, the positioning member 121 and the beam body 11 can be quickly positioned and connected.

[0035] Exemplarily, the positioning groove 123 is interference fit with the beam body 11, and when the positioning member 121 is connected to the beam body 11, the beam body 11 is clamped in the positioning groove 123. Optionally, the positioning member 121 is connected to the beam body 11 by welding.

[0036] Exemplarily, the positioning member 121 and the connecting member 122 are integrally formed.

[0037] As attached Figure 3As shown, the second connecting portion 23 includes a supporting member 231 and a reinforcing member 232. The two supporting members 231 are located at both ends of the reinforcing member 232 along the Y direction and are connected to the reinforcing member 232. The supporting member 231 is used to connect to the support beam 21, and the reinforcing member 232 is used to cooperate with the two supporting members 231 to increase the structural strength of the support beam 21. The connecting member 122 is detachably connected to one of the supporting members 231, and the reinforcing member 232 is detachably connected to the mounting assembly 30.

[0038] Exemplarily, the two supporting members 231 are symmetrically arranged in the Y direction.

[0039] Exemplarily, the supporting member 231 and the reinforcing member 232 are integrally formed.

[0040] As attached Figure 3 As shown, a beam hole 233 is provided on the supporting member 231 to cooperate with the supporting beam 21, and the beam hole 233 penetrates the supporting member 231 along the Y direction, and the supporting beam 21 is inserted into the beam hole 233. Exemplarily, the beam hole 233 and the supporting beam 21 are interference-fitted, and when the supporting beam 21 is connected to the supporting member 231, the supporting beam 21 is clamped in the beam hole 233. Optionally, the supporting beam 21 and the supporting member 231 are connected by welding.

[0041] For example, as shown in the attached Figure 2 As shown, the connecting member 122 is provided with a welding nut 124, which is combined with the attached Figure 3 The support member 231 is provided with a screw hole 234 that cooperates with the welding nut 124, and the connecting member 122 is detachably connected to the support member 231 through the cooperation of the fixing stud 125 with the welding nut 124 and the screw hole 234. Optionally, the screw hole 234 is formed by embedding a welding nut in an opening with a smooth inner wall.

[0042] Exemplarily, the number of the first connection parts 12 is set to two, and the two first connection parts 12 are located at one end of the beam body 11 close to the traction assembly 20. More specifically, the two first connection parts 12 are located at one end of the beam body 11 close to the vehicle body, and the two first connection parts 12 are symmetrically arranged in the Y direction and located at both ends of the beam body 11 along the Y direction. The two first connection parts 12 can ensure the stable installation of the beam body 11 and the traction assembly 20, and improve the connection quality.

[0043] As attached Figure 2 As shown, the beam body 11 extends approximately along the Y direction, or extends along the Y direction. Exemplarily, the beam body 11 is a prism structure. Optionally, the beam body 11 adopts a hollow quadrangular prism structure, which is conducive to reducing the overall weight of the beam body 11 while ensuring the structural strength of the beam body 11.

[0044] For example, the profile of the beam body 11 can be determined according to the shape of the rear bumper of the vehicle body, thereby ensuring that the beam body 11 can meet design requirements and collision safety requirements.

[0045] In one example, as shown in the attached Figure 2 As shown, the beam assembly 10 further includes a support portion 13, the support portion 13 includes a first connecting plate 131 and a second connecting plate 132, the two first connecting plates 131 are located on both sides of the second connecting plate 132 in the Y direction, and are connected to the second connecting plate 132, the second connecting plate 132 is connected to the beam body 11 through the two first connecting plates 131, and the second connecting plate 132 is used to connect to the traction assembly 20. The support portion 13 can cooperate with the first connecting portion 12 to achieve a reliable connection between the beam assembly 10 and the traction assembly 20.

[0046] Exemplarily, the support portion 13 is located in the middle of the beam body 11 .

[0047] Exemplarily, the two first connecting plates 131 are arranged in parallel and vertically connected to the second connecting plate 132 .

[0048] Exemplarily, the two first connecting plates 131 and the second connecting plate 132 are integrally formed.

[0049] Exemplarily, the two first connecting plates 131 are connected to the beam body 11 by welding.

[0050] As attached Figure 3 As shown, the traction body 22 includes a hook body 221 and a driving member, the driving member is connected to the hook body 221, and the driving member is used to drive the position of the hook body 221 relative to the beam body 11 to change, so that the driving member can move between the extended position 2210 and the retracted position 2211. Figure 4 The driving member is installed on the support beam 21 through the driving mounting portion 24.

[0051] Combined with Figure 3 and attached Figure 4 The drive mounting portion 24 includes a first support plate 241, a second support plate 242 and a guard plate 243. The first support plate 241 and the second support plate 242 are distributed at both ends of the support beam 21 along the Z direction and are connected to the support beam 21. The guard plate 243 is located on one side of the first support plate 241 and the second support plate 242 in the Y direction, and the guard plate 243 is connected to the first support plate 241 and the second support plate 242. One end of the guard plate 243 in the X direction is connected to the support beam 21. The first support plate 241 and the second support plate 242 cooperate to fix and install the drive member in the Z direction, and the guard plate 243 is used to fix and install the hook body 221 in the Y direction, so that the hook body 221 and the drive member can be firmly and stably installed on the support beam 21.

[0052] As attached Figure 3As shown, the first support plate 241 includes a first upper plate 2411 and a first lower plate 2412 which are vertically connected. The first upper plate 2411 is used to connect with the driving member, and the first lower plate 2412 is connected with the support beam 21.

[0053] Exemplarily, the first upper plate 2411 and the first lower plate 2412 are integrally formed.

[0054] Exemplarily, the first lower plate 2412 is connected to the support beam 21 by welding.

[0055] As attached Figure 3 As shown, the second support plate 242 includes a second upper plate 2421 and a second lower plate 2422 that are vertically connected. The second upper plate 2421 is connected to the support beam 21 , and the second lower plate 2422 is used to connect to the driving member and the second connecting plate 132 .

[0056] Exemplarily, the second upper plate 2421 and the second lower plate 2422 are integrally formed.

[0057] Exemplarily, the second upper plate 2421 is connected to the support beam 21 by welding.

[0058] As attached Figure 2 As shown, a fixing hole 1321 is provided on the second connecting plate 132, and the second connecting plate 132 is used for detachable connection with the traction assembly 20. More specifically, the second connecting plate 132 is used for detachable connection with the second support plate 242, and a matching hole connected to the fixing hole 1321 is provided on the second support plate 242, and the fixing hole 1321 cooperates with the matching hole to achieve connection.

[0059] Exemplarily, the matching hole is opened on the second lower plate 2422, and the matching hole and the fixing hole 1321 are both set as screw holes, and the second connecting plate 132 and the second lower plate 2422 are detachably connected by screw connection, which is convenient for disassembly and assembly. Optionally, a welding nut is provided in the matching hole to achieve efficient positioning connection with the fixing hole 1321.

[0060] As attached Figure 3 As shown, a traction mounting portion 25 is provided on the support beam 21, and the traction mounting portion 25 is used to install a traction ring. The traction mounting portion 25 includes a kit 251, and the kit 251 includes a sleeve hole. The kit 251 is installed on the support beam 21, and the traction ring is inserted into the sleeve hole. The traction ring is used to connect with a traction vehicle.

[0061] Exemplarily, a mounting hole 211 is provided on the support beam 21, the mounting hole 211 is provided along the X direction and passes through the support beam 21, and the sleeve 251 is passed through the mounting hole 211 and fixedly connected to the support beam 21. Optionally, the sleeve 251 is fixed in the mounting hole 211 by welding.

[0062] As attached Figure 5As shown, the mounting assembly 30 includes a contact plate 31, a reinforcing plate 32 and a mounting arm 33 which are sequentially connected along the X direction. The contact plate 31 is used for detachably connecting with the second connecting portion 23. The reinforcing plate 32 is located between the contact plate 31 and the mounting arm 33. The reinforcing plate 32 is used for increasing the connection strength of the mounting arm 33 to avoid the problem of poor connection stability and easy breakage of the mounting arm 33 due to the excessive length dimension of the X direction. The mounting arm 33 is used for detachably connecting with the vehicle body.

[0063] Exemplarily, the area of ​​the orthographic projection of the reinforcing plate 32 in the X-direction is smaller than the area of ​​the orthographic projection of the contact plate 31 in the X-direction.

[0064] For example, as shown in the attached Figure 5 As shown, a first through slot 311 is formed on the contact plate 31 along the X direction, a second through slot 321 is formed on the reinforcing plate 32 along the X direction, and a through piece 34 is connected to the end of the mounting arm 33 close to the contact plate 31. The through piece 34 is formed in the first through slot 311 and the second through slot 321, so as to realize the rapid positioning connection between the mounting arm 33 and the contact plate 31 and the reinforcing plate 32. Optionally, the through piece 34 is fixed in the first through slot 311 and the second through slot 321 by welding.

[0065] Optionally, the penetration piece 34 and the mounting arm 33 are formed integrally.

[0066] Optionally, the area of ​​the orthographic projection of the penetration member 34 in the X-direction is larger than the area of ​​the orthographic projection of the mounting arm 33 in the X-direction.

[0067] For example, as shown in the attached Figure 5 As shown, the contact plate 31 is provided with a functional hole 312. Figure 4 The reinforcing member 232 is provided with a first fixing member 235 matched with the functional hole 312, and the functional hole 312 and the first fixing member 235 are detachably connected through the second fixing member 313. Optionally, the first fixing member 235 is a welding nut, and the second fixing member 313 is a fixing stud.

[0068] Optionally, the first fixing member 235 is fixed in the functional hole 312 by welding.

[0069] Exemplarily, a connecting hole 331 is opened on the mounting arm 33, and the connecting hole 331 is used to cooperate with an opening on the longitudinal beam of the vehicle body to achieve a detachable connection.

[0070] Optionally, two connecting holes 331 are formed on the mounting arm 33 , and the two connecting holes 331 are spaced apart along the X direction.

[0071] Optionally, a welding nut is provided in the connecting hole 331, and the mounting arm 33 and the vehicle body are detachably connected by screwing.

[0072] In summary, the assembled automobile traction device proposed by the utility model is provided with a beam assembly 10 and a traction assembly 20. The beam assembly 10 and the traction assembly 20 are detachably connected. The beam body 11 can be installed on the support beam 21 through the detachable connection of the first connection part 12 and the second connection part 23; the mounting assembly 30 is detachably connected to the second connection part 23, and the support beam 21 can be detachably installed on the vehicle body. The beam assembly 10 and the traction assembly 20 can be flexibly selected according to different vehicle models. The structure is simple and the disassembly and assembly are convenient. The traction assembly 20 is then installed on the vehicle body through the mounting assembly 30. It is easy to assemble and replace and has strong flexibility.

[0073] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An assembled automobile traction device, characterized in that: The invention comprises a beam assembly (10), a traction assembly (20) and a mounting assembly (30), wherein the beam assembly (10) comprises a beam body (11) and a first connecting portion (12), wherein the first connecting portion (12) is mounted on the beam body (11), the traction assembly (20) comprises a support beam (21), a traction body (22) and a second connecting portion (23), wherein the traction body (22) and the second connecting portion (23) are mounted on the support beam (21), the first connecting portion (12) and the second connecting portion (23) are detachably connected, the mounting assembly (30) and the second connecting portion (23) are detachably connected, and the mounting assembly (30) is used for detachably mounting the support beam (21) on a vehicle body.

2. The assembled vehicle traction device according to claim 1, characterized in that: The first connecting portion (12) comprises a positioning member (121) and a connecting member (122) connected along the X direction, the positioning member (121) being connected to the beam body (11), the positioning member (121) being provided with a positioning groove (123) at one end close to the beam body (11), the positioning groove (123) penetrating the positioning member (121) along the Y direction, the beam body (11) being installed in the positioning groove (123), and the connecting member (122) being detachably connected to the second connecting portion (23).

3. The assembled automobile traction device according to claim 2, characterized in that: The second connecting portion (23) comprises a supporting member (231) and a reinforcing member (232), the two supporting members (231) and the reinforcing member (232) being connected at both ends in the Y direction, the supporting member (231) being connected to the support beam (21), the connecting member (122) being detachably connected to the supporting member (231), and the reinforcing member (232) being detachably connected to the mounting assembly (30).

4. The assembled automobile traction device according to claim 2, characterized in that: The number of the first connection parts (12) is set to two, the two first connection parts (12) are located at one end of the beam body (11) close to the traction assembly (20), and the two first connection parts (12) are symmetrical in the Y direction.

5. The assembled automobile traction device according to claim 1, characterized in that: The beam assembly (10) comprises a support portion (13), wherein the support portion (13) comprises a first connecting plate (131) and a second connecting plate (132), wherein the two first connecting plates (131) are located on both sides of the second connecting plate (132) in the Y direction and are connected to the second connecting plate (132), wherein the first connecting plate (131) is used to be connected to the beam body (11), and the second connecting plate (132) is connected to the traction assembly (20).

6. The assembled vehicle traction device according to claim 5, characterized in that: The traction body (22) comprises a hook body (221) and a driving member, wherein the driving member is used to drive the hook body (221) to move between an extended position (2210) and a retracted position (2211), and the driving member is mounted on the support beam (21) via a driving mounting portion (24).

7. The assembled vehicle traction device according to claim 6, characterized in that: The drive mounting portion (24) comprises a first support plate (241), a second support plate (242) and a guard plate (243); the first support plate (241) and the second support plate (242) are distributed at two ends of the support beam (21) along the Z direction and are connected to the support beam (21); the guard plate (243) is located on one side of the first support plate (241) and the second support plate (242) in the Y direction, and the guard plate (243) is connected to the first support plate (241) and the second support plate (242); one end of the guard plate (243) in the X direction is connected to the support beam (21); the first support plate (241) and the second support plate (242) are used to mount the drive member, and the guard plate (243) is used to mount the hook body (221).

8. The assembled vehicle traction device according to claim 7, characterized in that: The first support plate (241) comprises a first upper plate (2411) and a first lower plate (2412) which are vertically connected, wherein the first upper plate (2411) is used to be connected to the driving member, and the first lower plate (2412) is connected to the support beam (21).

9. The assembled automobile traction device according to claim 7, characterized in that: The second connecting plate (132) and the second supporting plate (242) are detachably connected, a fixing hole (1321) is provided on the second connecting plate (132), and a matching hole connected to the fixing hole (1321) is provided on the second supporting plate (242).

10. The assembled vehicle traction device according to claim 9, characterized in that: The second support plate (242) includes a second upper plate (2421) and a second lower plate (2422) vertically connected, the second upper plate (2421) is connected to the support beam (21), the second lower plate (2422) is connected to the driving member, the matching hole is opened on the second lower plate (2422), and the second lower plate (2422) is detachably connected to the second connecting plate (132).

Images