Adjustable trench system for chassis detection and assembly

Abstract

The utility model relates to the technical field of trenches, in particular to an adjustable trench system for chassis detection and assembly, which comprises a first trench arranged on the ground along a first direction, second trenches arranged on the ground along a second direction and sliding table devices arranged in the second trenches, an included angle is formed between the first direction and the second direction, and the sliding table devices are arranged in the first trench and the second trench. The second groove is communicated with at least one side of the first groove, the sliding table device comprises a sliding plate capable of reciprocating between a first position and a second position, and the sliding plate covers the second groove at the first position; in the second position, the sliding plate opens the second groove. When the sliding plate moves towards the first position, the vehicle runs on the sliding plate to reach the maintenance position, and when the sliding plate moves towards the second position, the second groove can be opened, so that the operation convenience of a worker in the second groove is improved, and the sliding table device is arranged in the second groove; the problem that an existing whole vehicle bottom guard plate assembling device is installed on the ground and occupies a large space is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of trenches, in particular to an adjustable trench system for chassis detection and assembly. Background Art

[0002] At present, the trench design of the inspection line of the main automobile factory is fixed. Under the condition of meeting the normal traffic of vehicles, only the middle area is designed to be hollowed out, and the two sides are load-bearing entities. It can only meet the needs of workers standing at the bottom of the trench to check the chassis pipe lines, torque, etc. The walls on both sides of the trench block the hand operation space. Because the assembly of parts such as the lower body guard plate and the lower body surround of new energy vehicles is blocked by the main line hoist, the installation space of parts is limited, and the personnel cannot meet the human-machine operation requirements by squatting and bending over more than 90 degrees. After the lower body surround parts are installed on the main line, the toe and camber adjustment space of the four-wheel alignment parameters of the inspection line is blocked, and the toe and camber adjustment cannot be performed. The Chinese patent application with publication number: CN112678095A discloses a whole vehicle underbody guard assembly device, which can accommodate two vehicles in parallel, including a guide mechanism, a working platform, a first road surface telescopic mechanism, a wheel support platform, a second road surface telescopic mechanism and a vehicle blocking mechanism; the guide mechanism is fixed on both sides of the vehicle track on the working platform; the wheel support platform is fixed on the working platform; the first road surface telescopic mechanism and the second road surface telescopic mechanism are arranged on the front and rear sides of the wheel support platform and fixed on the working platform; the vehicle blocking mechanism is fixed on the front end of the working platform. In the disclosed technical solution, the operation space of the ditch can be effectively improved by setting the first road surface telescopic mechanism and the second road surface telescopic mechanism. However, since the whole vehicle underbody guard assembly device needs to be installed on the ground, there is a problem of occupying a large space. Utility Model Content

[0003] One of the purposes of the utility model is to provide an adjustable trench system for chassis inspection and assembly, so as to solve the problem that the whole vehicle underbody guard assembly equipment needs to be installed on the ground as a whole, thus occupying a large space.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: an adjustable ground groove system for chassis detection and assembly, comprising a first groove opened on the ground along a first direction, a second groove opened on the ground along a second direction, and a slide device installed in each of the second grooves, an angle is formed between the first direction and the second direction, the second groove is connected to at least one side of the first groove, and the slide device comprises a sliding plate that can reciprocate between a first position and a second position, in the first position, the sliding plate covers the second groove; in the second position, the sliding plate opens the second groove.

[0005] According to the above technical means, when in use, before the vehicle enters the inspection position, the sliding plate slides toward the first position to cover the second groove. After the sliding plate moves to the first position, the vehicle can travel on the sliding plate along the first direction. When the vehicle travels to the inspection position, the two ends of the sliding plate along the first direction are located between the front and rear wheels of the vehicle. When the vehicle chassis needs to be inspected or assembled, the sliding plate moves toward the second position so that the second groove connected to the first groove is not covered by the sliding plate, thereby increasing the convenience of the staff in the second groove and facilitating the staff to inspect or assemble the vehicle chassis. Since the sliding plate moves toward the first position, the vehicle can travel on the sliding plate to reach the inspection position, and the sliding plate moves toward the second position, the second groove can be opened, which can increase the convenience of the staff in the second groove. The entire slide device is placed in the second groove and does not occupy the space above the ground, which solves the problem that the existing vehicle bottom guard plate assembly equipment needs to be installed on the ground and occupies a large space.

[0006] Furthermore, the slide device also includes a mounting frame and a driving device, the mounting frame is installed in the second groove, and the driving device is connected to the sliding plate for driving the sliding plate to move along the second direction on the mounting frame toward or away from the first groove to cover or open a portion of the second groove.

[0007] According to the above technical means, before the vehicle enters the maintenance position, the driving device drives the sliding plate to slide relative to the mounting frame in a direction close to the first groove to cover part of the second groove. After the sliding plate moves to the first position, the vehicle can travel on the sliding plate along the first direction. When the vehicle travels to the maintenance position, the two ends of the sliding plate along the first direction are located between the front and rear wheels of the vehicle. When the vehicle chassis needs to be inspected or assembled, the driving device drives the sliding plate to move in a direction away from the first groove. When the sliding plate moves to the second position, the sliding plate can make the part of the second groove connected to the first groove not covered by the sliding plate, thereby increasing the convenience of the staff's operation in the second groove and facilitating the staff to inspect or assemble the vehicle chassis.

[0008] Furthermore, a fixing plate is installed on the top of the mounting frame, and the fixing plate covers another part of the second groove.

[0009] According to the above technical means, since the fixed plate covers another part of the second groove, when the mounting frame is placed in the second groove, the fixed plate can cover the part of the second groove not covered by the sliding plate, thereby preventing people from falling into the second groove and ensuring safety.

[0010] Furthermore, a guide rail is provided on the mounting frame along the second direction, the sliding plate is mounted on the guide rail and is slidably connected thereto, and an accommodation space is formed between the fixed plate and the guide rail in the vertical direction for accommodating the sliding plate under the fixed plate.

[0011] According to the above technical means, the sliding plate is installed on the guide rail and is slidably connected thereto, so that the movement of the sliding plate can be more stable during the process of the driving device driving the sliding plate to slide. When the vehicle chassis needs to be inspected or assembled, the driving device drives the sliding plate to move in the direction close to the fixed plate, so that the part of the second groove connected to the first groove is not covered by the sliding plate, which is conducive to the convenience of the staff to operate in the second groove. In addition, the accommodating space allows the sliding plate to be stored at the bottom of the fixed plate when the sliding plate is in the second position, which can further increase the area of ​​the part of the second groove connected to the first groove that is not covered by the sliding plate, further improving the convenience of the staff to operate in the second groove.

[0012] Furthermore, the driving device comprises a first telescopic structure, a body of the first telescopic structure is mounted on the bottom of the fixed plate or the sliding plate, and a telescopic end of the first telescopic structure is mounted on the bottom of the sliding plate or the fixed plate.

[0013] According to the above technical means, since the telescopic end of the first telescopic structure is installed at the bottom of the sliding plate or the fixed plate, and the main body of the first telescopic structure is installed at the bottom of the fixed plate or the sliding plate, when the telescopic end of the first telescopic structure performs telescopic movement relative to the main body, the sliding plate will move in the direction close to or away from the fixed plate.

[0014] Furthermore, the fixed plate is also provided with a locking device for locking / unlocking the connection between the fixed plate and the sliding plate.

[0015] According to the above technical means, in order to avoid the problem of the sliding plate accidentally sliding relative to the fixed plate, when the sliding plate slides relative to the fixed plate to a position away from the fixed plate, the sliding plate and the fixed plate are locked by a locking device, which can ensure the stability of the vehicle when passing through the sliding plate.

[0016] Further, the locking device includes a first connecting member installed at the bottom of the fixed plate, a second connecting member installed at the bottom of the sliding plate, and a locking member, the first connecting member is provided with a first connecting hole along a first direction, the second connecting member is provided with a second connecting hole corresponding to the position of the first connecting hole, and the locking member includes a second telescopic structure arranged on the fixed plate or the sliding plate, and the telescopic end of the second telescopic structure extends into the first connecting hole and the second connecting hole.

[0017] According to the above technical means, the telescopic end of the second telescopic structure is inserted into the first connecting hole and the second connecting hole, so that the first connecting member and the second connecting member can be connected, and then the sliding plate and the fixed plate can be connected, so as to avoid the driving safety of the vehicle being affected by the erroneous operation of the driving device when the vehicle moves on the sliding plate, causing the sliding plate to move relative to the fixed plate.

[0018] Furthermore, it also includes a barrier device, which is installed on the ground and located at one end of the first groove along the first direction.

[0019] According to the above technical means, when the sliding plate moves toward the direction close to the fixed plate, the barrier device opens to remind the driver that he cannot continue to drive in the first direction, and the barrier device serves as a reminder.

[0020] Furthermore, it also includes a roadblock structure, which is installed on the ground and located adjacent to the first groove and the second groove.

[0021] According to the above technical means, when the front wheels of a vehicle approach the roadblock structure, it means that the vehicle has driven to a suitable position and cannot continue to drive, and the roadblock structure can serve to remind the driver.

[0022] Furthermore, it also includes a sensor for detecting the position of the vehicle, the sensor is arranged on the side of the roadblock structure, the sensor is connected to a control panel, and the control panel is connected to the driving device.

[0023] According to the above technical means, when the vehicle drives to the roadblock position, the sensor detects the position of the vehicle and sends the detected data to the control panel. The staff can operate the driving device through the control panel to make the driving device drive the sliding plate to move toward the direction close to the fixed plate, so as to improve the convenience of the staff's operation in the second groove.

[0024] The beneficial effects of the utility model are as follows: in the utility model, since the sliding plate moves toward the first position, the vehicle can travel on the sliding plate to reach the maintenance position, and the second groove can be opened when the sliding plate moves toward the second position, which can increase the convenience of the staff operating in the second groove, and the entire slide device is placed in the second groove and will not occupy the space above the ground, thereby solving the problem that the existing vehicle bottom guard plate assembly equipment needs to be installed on the ground and occupies a large space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of an application scenario of the adjustable trench system of the utility model;

[0026] Figure 2 This is a perspective view of the adjustable trench system of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the slide device in the adjustable trench system of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the adjustable trench system of the utility model;

[0029] Figure 5 This is a diagram showing a state in which the sliding plate of the adjustable trench system of the utility model is away from the fixed plate;

[0030] Figure 6 This is a diagram showing a state in which the sliding plate of the adjustable trench system of the utility model is close to the fixed plate.

[0031] Among them: 1. first groove; 2. second groove; 3. slide device; 31. mounting frame; 32. fixing plate; 33. sliding plate; 34. driving device; 35. guide rail; 4. accommodating space; 5. locking device; 51. first connecting piece; 52. second connecting piece; 53. locking piece; 54. first connecting hole; 55. second connecting hole; 56. latch; 6. gate device; 7. roadblock structure; 8. control panel; 9. sensor. DETAILED DESCRIPTION

[0032] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0033] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0034] like Figure 1 , Figure 3 and Figure 6As shown, an adjustable trench system for chassis inspection and assembly includes a first trench 1 opened on the ground along a first direction, a second trench 2 opened on the ground along a second direction, and a slide device 3 installed in each second trench 2, an angle is formed between the first direction and the second direction, the second trench 2 is connected to at least one side of the first trench 1, and the slide device 3 includes a sliding plate 33 that can reciprocate between a first position and a second position, in the first position, the sliding plate 33 covers the second trench 2; in the second position, the sliding plate 33 opens the second trench 2.

[0035] When in use, before the vehicle enters the inspection position, the sliding plate 33 slides toward the first position to cover the second groove 2. After the sliding plate 33 moves to the first position, the vehicle can travel on the sliding plate 33 along the first direction. When the vehicle travels to the inspection position, the two ends of the sliding plate 33 along the first direction are located between the front and rear wheels of the vehicle. When the vehicle chassis needs to be inspected or assembled, the sliding plate 33 moves toward the second position so that the second groove 2 connected to the first groove 1 is not covered by the sliding plate 33, thereby increasing the convenience of the staff's operation in the second groove 33 and facilitating the staff to inspect or assemble the vehicle chassis.

[0036] It should be noted that the upper surface of the sliding plate 33 is preferably flush with the ground. When the sliding plate 33 moves toward the first position, the upper surface of the sliding plate 33 can be flush with the ground plane outside the first groove 1 and the second groove 2. When the vehicle passes through the sliding plate 33, the smoothness of the vehicle passing on the sliding plate 33 can be ensured. The mounting frame 31 is completely placed in the second groove 2. The mounting frame 31 is a frame structure, which will not occupy more space in the second groove 2, ensuring the convenience of maintenance personnel to operate in the second groove 2. The second groove 2 can be arranged on one side of the first groove 1, or on both sides of the first groove 1. When the two second grooves 2 are respectively located on both sides of the first groove 1, each second groove 2 is installed with a slide device 3. The X-axis direction in the figure is the first direction, and the Y-axis direction is the vertical direction. It should also be pointed out that the sliding plate 33 can move between the first position and the second position along the second direction, and can also move between the first position and the second position along the Y-axis direction to cover or open the second groove 2. When the sliding plate 33 moves between the first position and the second position in the vertical direction, the sliding plate 33 covers or opens the second groove in a lifting motion. When the sliding plate 33 moves to the same level as the ground (the first position), the sliding plate 33 covers the second groove 2. When the sliding plate 33 moves to the bottom of the second groove 2, the sliding plate 33 opens the second groove 2. The angle between the first direction and the second direction is preferably a right angle, so that the space of the second groove can be maximized, that is, the second groove 2 is preferably perpendicular to the first groove 1.

[0037] In this embodiment, if Figure 2 , Figure 3 As shown, the slide device 3 also includes a mounting frame 31 and a driving device 34. The mounting frame 31 is installed in the second groove 2. The driving device 34 is connected to the sliding plate 33 and is used to drive the sliding plate 33 to move along the second direction on the mounting frame 31 toward or away from the first groove 1 to cover or open a portion of the second groove 2. Before the vehicle enters the inspection position, the driving device 34 drives the sliding plate 33 to slide relative to the mounting frame 31 in the direction close to the first groove 1 to cover part of the second groove 2. After the sliding plate 33 moves to the first position, the vehicle can travel on the sliding plate 33 along the first direction. When the vehicle drives to the inspection position, the two ends of the sliding plate 33 along the first direction are located between the front and rear wheels of the vehicle. When the vehicle chassis needs to be inspected or assembled, the driving device 34 drives the sliding plate 33 to move in the direction away from the first groove 1. When the sliding plate 33 moves to the second position, the sliding plate 33 can make part of the second groove 2 connected to the first groove 1 not covered by the sliding plate 33, thereby increasing the convenience of the staff in the second groove 2, and facilitating the staff to inspect or assemble the vehicle chassis. It should be noted that the driving device 34 can be installed on the side wall surface of the second groove 2, or on the mounting frame 31.

[0038] In this embodiment, if Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a fixed plate 32 is installed on the top of the mounting frame 31, and the fixed plate 32 covers another part of the second groove 2. Since the fixed plate 32 covers another part of the second groove 2, when the mounting frame 31 is placed in the second groove 2, the fixed plate 32 can cover the part of the second groove 2 not covered by the sliding plate 33, thereby preventing people from falling into the second groove 2 and ensuring safety. It should be noted that the upper surface of the fixed plate 32 is preferably flush with the ground. When the entire trench system is in an idle state, the fixed plate 32 and the sliding plate 33 can completely cover the second groove 2, ensuring the safety of people passing through. When the sliding plate 33 is in a state of covering part of the second groove 2, the sliding plate 33 is closer to the first groove 1 relative to the fixed plate 32.

[0039] In this embodiment, if Figure 3As shown, a guide rail 35 is arranged on the mounting frame 31 along the second direction, and the sliding plate 33 is mounted on the guide rail 35 and slidably connected thereto. The sliding plate 33 is mounted on the guide rail 35 and slidably connected thereto, so that the movement of the sliding plate 33 can be more stable during the process of the driving device 34 driving the sliding plate 33 to slide. It should be noted that a slider is arranged on the sliding plate 33, and the slider is mounted on the guide rail 35 and slidably connected to the guide rail 35. The setting of the slider can realize the smooth sliding between the sliding plate 33 and the guide rail 35. A receiving space 4 for the sliding plate 33 to be received under the fixing plate 32 is formed between the fixing plate 32 and the guide rail 35 in the vertical direction. When the vehicle chassis needs to be inspected or assembled, the driving device 34 drives the sliding plate 33 to move in the direction close to the fixing plate 32, so that the part of the second groove 2 connected to the first groove 1 is not covered by the sliding plate 33, which is conducive to the convenience of the staff to operate in the second groove 2. In addition, the accommodating space 4 allows the sliding plate 33 to be in the second position. Since the sliding plate 33 is stored at the bottom of the fixed plate 32, this can further increase the area of ​​the second groove 2 that is connected to the first groove 1 and is not blocked by the sliding plate 33, thereby further improving the convenience of the staff operating in the second groove 2.

[0040] In this embodiment, if Figure 3 As shown, the driving device 34 includes a first telescopic structure, the body of the first telescopic structure is mounted on the bottom of the fixed plate 32 or the sliding plate 33, and the telescopic end of the first telescopic structure is mounted on the bottom of the sliding plate 33 or the fixed plate 32. Since the telescopic end of the first telescopic structure is mounted on the bottom of the sliding plate 33 or the fixed plate 32, and the body of the first telescopic structure is mounted on the bottom of the fixed plate 32 or the sliding plate 33, when the telescopic end of the first telescopic structure performs telescopic movement relative to the body, the sliding plate 33 will move in a direction close to or away from the fixed plate 32. It should be noted that the first telescopic structure can be a telescopic cylinder, a telescopic hydraulic cylinder, or other structures that can achieve a telescopic function. The driving device 34 is indirectly mounted on the mounting frame 31 by being mounted on the fixed plate 32.

[0041] In this embodiment, if Figure 3 As shown, the fixed plate 32 is also provided with a locking device 5 for locking / unlocking the connection between the fixed plate 32 and the sliding plate 33. In order to prevent the sliding plate 33 from sliding accidentally relative to the fixed plate 32, when the sliding plate 33 slides relative to the fixed plate 32 to a position away from the fixed plate 32, the sliding plate 33 and the fixed plate 32 are locked by the locking device 5, so as to ensure the stability of the vehicle when passing through the sliding plate 33.

[0042] In this embodiment, if Figure 3As shown, the locking device 5 includes a first connecting member 51 installed at the bottom of the fixed plate 32, a second connecting member 52 installed at the bottom of the sliding plate 33, and a locking member 53. The first connecting member 51 is provided with a first connecting hole 54 along the first direction, and the second connecting member 52 is provided with a second connecting hole 55 corresponding to the position of the first connecting hole 54. The locking member 53 includes a second telescopic structure provided on the fixed plate 32 or the sliding plate 33, and the telescopic end of the second telescopic structure extends into the first connecting hole 54 and the second connecting hole 55. The telescopic end of the second telescopic structure is inserted into the first connecting hole 54 and the second connecting hole 55, so that the first connecting member 51 and the second connecting member 52 can be connected, and then the sliding plate 33 and the fixed plate 32 are connected. When the vehicle moves on the sliding plate 33, the driving device 34 is prevented from being misoperated, causing the sliding plate 33 to move relative to the fixed plate 32, thereby affecting the driving safety of the vehicle. It should be noted that the second telescopic structure can be a telescopic cylinder, a telescopic hydraulic cylinder, or other structures that can achieve the telescopic function. The telescopic end of the second telescopic structure is connected with a latch 56 , which is inserted into the first connection hole 54 and the second connection hole 55 to achieve connection between the sliding plate 33 and the fixed plate 32 .

[0043] In this embodiment, if Figure 4 As shown, it also includes a barrier gate device 6, which is installed on the ground and located at one end of the first groove 1 along the first direction. When the sliding plate 33 moves in the direction close to the fixed plate 32, the barrier gate device 6 opens to remind the driver that he cannot continue to drive along the first direction. The barrier gate device 6 plays a prompting role. It should be noted that the barrier gate device 6 includes a barrier gate and a driving member for driving the barrier gate to open. One end of the barrier gate is hinged to the ground. The driving member can be a telescopic structure. The fixed end of the telescopic structure is hinged to the ground. The telescopic end of the telescopic structure is hinged to the barrier gate. When the barrier gate is driven by the telescopic structure, the barrier gate is perpendicular to the ground and is in an open state; when the barrier gate is driven by the telescopic structure, the barrier gate is parallel and close to the ground and covers part of the first groove 1, and the barrier gate is in a closed state.

[0044] In this embodiment, if Figure 2 , Figure 5 and Figure 6 As shown, a roadblock structure 7 is also included, which is installed on the ground and located adjacent to the first groove 1 and the second groove 2. When the front wheel of the vehicle approaches the roadblock structure 7, it means that the vehicle has traveled to a suitable position and cannot continue to travel, and the roadblock structure 7 can serve to remind the driver.

[0045] In this embodiment, if Figure 4As shown, it also includes a sensor 9 for detecting the position of the vehicle, the sensor 9 is located on the side of the roadblock structure 7, and the sensor is connected to a control panel 8, and the control panel 8 is connected to the driving device 34. When the vehicle drives to the roadblock position, the sensor 9 detects the position of the vehicle and sends the detected data to the control panel 8. Through the control panel 8, the staff can operate the driving device 34, so that the driving device 34 drives the sliding plate 33 to move in the direction close to the fixed plate 32, so as to improve the convenience of the staff to operate in the second groove 2. It should be noted that the sensor 9 can be an infrared sensor, and the infrared sensor can be set next to the roadblock structure 7. The control panel 8 can be set in the second groove 2, so that the staff can operate the sliding plate 33 as needed.

[0046] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. An adjustable trench system for chassis inspection and assembly, characterized in that: The invention comprises a first groove (1) opened on the ground along a first direction, a second groove (2) opened on the ground along a second direction, and a slide device (3) installed in each of the second grooves (2); the first direction and the second direction form an angle; the second groove (2) is connected to at least one side of the first groove (1); the slide device (3) comprises a sliding plate (33) which can reciprocate between a first position and a second position; in the first position, the sliding plate (33) covers the second groove (2); in the second position, the sliding plate (33) opens the second groove (2).

2. The adjustable trench system for chassis inspection and assembly according to claim 1, characterized in that: The slide device (3) further comprises a mounting frame (31) and a driving device (34), wherein the mounting frame (31) is mounted in the second groove (2), and the driving device (34) is connected to the sliding plate (33) and is used to drive the sliding plate (33) to move on the mounting frame (31) along a second direction toward or away from the first groove (1) to cover or open a portion of the second groove (2).

3. The adjustable trench system for chassis inspection and assembly according to claim 2, characterized in that: A fixing plate (32) is installed on the top of the mounting frame (31), and the fixing plate (32) covers another part of the second groove (2).

4. The adjustable trench system for chassis inspection and assembly according to claim 3, characterized in that: A guide rail (35) is arranged on the mounting frame (31) along the second direction, the sliding plate (33) is mounted on the guide rail (35) and is slidably connected thereto, and an accommodation space (4) is formed between the fixed plate (32) and the guide rail (35) in the vertical direction for accommodating the sliding plate (33) below the fixed plate (32).

5. The adjustable trench system for chassis inspection and assembly according to claim 3, characterized in that: The driving device (34) comprises a first telescopic structure, the body of the first telescopic structure is mounted on the bottom of the fixed plate (32) or the sliding plate (33), and the telescopic end of the first telescopic structure is mounted on the bottom of the sliding plate (33) or the fixed plate (32).

6. The adjustable trench system for chassis inspection and assembly according to claim 3, characterized in that: The fixed plate (32) is also provided with a locking device (5) for locking / unlocking the connection between the fixed plate (32) and the sliding plate (33).

7. The adjustable trench system for chassis inspection and assembly according to claim 6, characterized in that: The locking device (5) comprises a first connecting member (51) installed at the bottom of the fixed plate (32), a second connecting member (52) installed at the bottom of the sliding plate (33), and a locking member (53); the first connecting member (51) is provided with a first connecting hole (54) along a first direction; the second connecting member (52) is provided with a second connecting hole (55) corresponding to the position of the first connecting hole (54); the locking member (53) comprises a second telescopic structure arranged on the fixed plate (32) or the sliding plate (33); the telescopic end of the second telescopic structure extends into the first connecting hole (54) and the second connecting hole (55).

8. The adjustable trench system for chassis inspection and assembly according to any one of claims 1 to 7, characterized in that: It also comprises a barrier gate device (6), which is installed on the ground and located at one end of the first groove (1) along the first direction.

9. The adjustable trench system for chassis inspection and assembly according to any one of claims 2 to 7, characterized in that: It also comprises a roadblock structure (7), which is installed on the ground and located adjacent to the first groove (1) and the second groove (2).

10. The adjustable trench system for chassis inspection and assembly according to claim 9, characterized in that: It also includes a sensor (9) for detecting the position of the vehicle, wherein the sensor (9) is arranged on the side of the roadblock structure (7), and the sensor (9) is connected to a control panel (8), and the control panel (8) is connected to the driving device (34).

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