Disassembling and assembling trolley device for vehicle door

Abstract

The utility model relates to the technical field of automobile disassembling and assembling tools, in particular to a disassembling and assembling trolley device for an automobile door, which comprises a bearing main body, a supporting piece used for supporting the automobile door is connected below the bearing main body, and a suction cup assembly used for sucking the automobile door is connected to the side of the bearing main body. The fixed end of the first linear motion mechanism is connected with the bearing body, the movable end of the first linear motion mechanism is connected with the fixed end of the second linear motion mechanism, and the suction cup assembly is connected to the movable end of the second linear motion mechanism. The first linear motion mechanism is arranged in the vertical direction, and the second linear motion mechanism is arranged in the direction, close to or away from a vehicle door, of the suction cup assembly. Due to the arrangement of the first linear motion mechanism and the second linear motion mechanism, the position of the suction cup assembly can be directly adjusted to be suitable for vehicle doors of different specifications, and the universality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile disassembly and assembly tools, and more specifically, to a disassembly and assembly trolley device for vehicle doors. Background Art

[0002] During the process of automobile production, it is sometimes necessary to disassemble and reassemble the installed vehicle doors. For example, due to abnormal body wiring harness, it is necessary to disassemble the vehicle door for troubleshooting. Or because the vehicle door is damaged and deformed, it is necessary to disassemble the vehicle door for rework. Usually, three people are required to cooperate to disassemble and assemble the vehicle door in an automobile factory. Two of them lift the vehicle door, and one person disassembles or assembles it, resulting in low work efficiency of door disassembly and installation.

[0003] There are also related studies in the prior art. For example, Chinese Patent Publication No. CN117799726A discloses a device for on-line disassembly and installation of vehicle doors, including a trolley main body, a moving component and a fixing component. The moving component is movably connected to the trolley main body, and the fixing component is fixedly connected to the moving component. The fixing component includes a connecting rod and a suction cup. The above patent solution fixes the vehicle door by placing it on the moving component and adsorbing the suction cup on the window, and then disassembling and assembling it. Although it improves the efficiency of door disassembly and assembly to a certain extent, since the position of the suction cup on the moving component is fixed, the position of the suction cup cannot be adjusted individually. The suction cup needs to be adsorbed on the window, and the sizes of some vehicle doors of different models are different, and the window positions are also different, which makes it difficult for this device to be applicable to vehicle doors of different models. Summary of the Utility Model

[0004] The utility model aims to overcome the problem that the existing vehicle door disassembly and installation device in the above prior art is difficult to be applicable to vehicle doors of different models, and provides a disassembly and assembly trolley device for vehicle doors.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a disassembly and assembly trolley device for vehicle doors, including a bearing main body, a support member for supporting the vehicle door is connected below the bearing main body, a suction cup assembly for adsorbing the vehicle door is connected to the side of the bearing main body, as well as a first linear motion mechanism and a second linear motion mechanism. The fixed end of the first linear motion mechanism is connected to the bearing main body, the moving end of the first linear motion mechanism is connected to the fixed end of the second linear motion mechanism, the suction cup assembly is connected to the moving end of the second linear motion mechanism, the first linear motion mechanism is arranged in the vertical direction, and the second linear motion mechanism is arranged in the direction in which the suction cup assembly approaches or moves away from the vehicle door.

[0006] In the technical solution of the present utility model, the door is supported by a support member, and the side of the door is adsorbed by a suction cup assembly, so that the door can be fixed on the carrying body, facilitating the installation and disassembly of the door. Since there are a first linear motion mechanism and a second linear motion mechanism, the position of the suction cup assembly can be directly adjusted to be applicable to doors of different specifications, improving the versatility of the device.

[0007] Further, it further includes a driving mechanism for driving the support member to lift and lower. The driving mechanism is connected to the carrying body, and the execution end of the driving mechanism is connected to the support member.

[0008] In the above technical solution, the driving mechanism drives the support member to lift and lower, so that the support member abuts against the bottom of the door, facilitating the fixing and disassembly of doors of different specifications.

[0009] Further, the second linear motion mechanism is horizontally arranged in the direction towards the door, and the first linear motion mechanism is perpendicularly arranged with respect to the second linear motion mechanism.

[0010] In the above solution, through the first linear motion mechanism and the second linear motion mechanism arranged in the vertical direction and the horizontal direction, the position of the suction cup can move within the vertical plane, facilitating the connection with the door.

[0011] Further, two sets of the first linear motion mechanism, the second linear motion mechanism, and the suction cup assembly are respectively arranged in parallel, and the two sets of suction cup assemblies are arranged in the same direction.

[0012] In the above solution, the door is fixed more firmly by the two sets of suction cup assemblies, and the positions of the two sets of suction cup assemblies can be respectively adjusted by the two sets of the first linear motion mechanism and the second linear motion mechanism, facilitating the fixation with the door.

[0013] Further, it further includes a mounting rod. The two ends of the mounting rod are respectively connected to the moving ends of the two sets of the first linear motion mechanism, and the fixed ends of the two sets of the second linear motion mechanism are both connected to the mounting rod.

[0014] In the above technical solution, the two sets of the first linear motion mechanism and the second linear motion mechanism are connected by the mounting rod, making the overall structure more stable.

[0015] Further, the first linear motion mechanism is a guide rail slider mechanism, including a guide rail, a slider, and a locking member for fixing the slider on the guide rail. The guide rail is fixedly connected to the carrying body in the vertical direction, the slider is slidably connected to the guide rail, and the slider is the moving end of the first linear motion mechanism.

[0016] Further, the second linear motion mechanism is a cylinder, including a cylinder block and a piston rod movably connected to the cylinder block. The cylinder block is fixedly connected to the slider, and the piston rod is fixedly connected to the suction cup assembly. The piston rod serves as the moving end of the second linear motion mechanism. The disassembly and assembly trolley device further includes an air pump, which is connected to the carrying body, and the output end of the air pump is connected to the cylinder.

[0017] In the above technical solution, by using a cylinder as the second linear motion mechanism and providing an air pump for driving the cylinder on the carrying body, the cylinder does not need to be connected to an external air source device anymore. Since it is not connected to an external device, the trolley device is more convenient to move.

[0018] Further, the suction cup assembly includes a suction cup body, an elastic connecting member, and a telescopic connecting rod. One end of the telescopic connecting rod is connected to the moving end of the second linear motion mechanism, the other end of the telescopic connecting rod is connected to the suction cup body, one end of the elastic connecting member is connected to the suction cup body, and the other end of the elastic connecting member is connected to the end of the telescopic connecting rod far from the suction cup.

[0019] In the above technical solution, since the suction cup assembly is provided with an elastic connecting member and a telescopic connecting rod, it plays an elastic buffering role in the connection between the suction cup and the car door.

[0020] Further, the telescopic connecting rod includes a first sleeve rod and a second sleeve rod that are slidably sleeved. The first sleeve rod and the second sleeve rod are both provided with air flow channels communicating with the suction cup along the axial direction. The first sleeve rod is connected to a vacuum pump through a pipeline, and the second sleeve rod is connected to the suction cup body.

[0021] In the above technical solution, a vacuum pump is used to connect to the suction cup body. The vacuum pump creates negative pressure in the suction cup body, so that the suction cup stably adsorbs on the car door.

[0022] Further, it further includes a third linear motion mechanism connected between the first linear motion mechanism and the second linear motion mechanism. The fixed end of the third linear motion mechanism is connected to the moving end of the first linear motion mechanism, the moving end of the third linear motion mechanism is connected to the fixed end of the second linear motion mechanism, and the third linear motion mechanism is perpendicular to the first linear motion mechanism and the second linear motion mechanism.

[0023] In the above technical solution, due to the provision of the third linear motion mechanism, the suction cup can adjust its position on the horizontal plane, which is convenient for connecting to the car door.

[0024] Compared with the prior art, the beneficial effects of the present utility model are:

[0025] The disassembly and assembly trolley device for a vehicle door of the present utility model supports the vehicle door through a support member and adsorbs the side of the vehicle door through a suction cup assembly, enabling the vehicle door to be fixed on the load-bearing main body, facilitating the installation and disassembly of the vehicle door. Due to the provision of a first linear motion mechanism and a second linear motion mechanism, the position of the suction cup assembly can be directly adjusted to be applicable to vehicle doors of different specifications, improving the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the disassembly and assembly trolley device for a vehicle door of the present utility model;

[0027] Figure 2 is the present utility model Figure 1 left view of the disassembly and assembly trolley device for a vehicle door.

[0028] In the drawings:

[0029] 1, load-bearing main body; 2, support member; 3, suction cup assembly; 31, suction cup body; 32, elastic connection member; 33, telescopic connecting rod; 4, first linear motion mechanism; 41, guide rail; 42, slider; 5, second linear motion mechanism; 51, cylinder block; 52, piston rod; 6, mounting rod; 7, universal wheel; 8, drive mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The drawings are only for illustrative purposes and should not be construed as a limitation of this patent; for better illustration of this embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and should not be construed as a limitation of this patent. The term "connection" in the present utility model can either represent direct connection between two components or represent indirect connection using intermediate components.

[0031] In the drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] The technical solutions of the present utility model will be further specifically described below through specific embodiments and in conjunction with the drawings:

[0033] Example 1

[0034] Reference Figure 1 And Figure 2 In this embodiment, a disassembly and assembly trolley device for a vehicle door is disclosed, which includes a carrying main body 1. A support member 2 for supporting the vehicle door is connected to the lower part of the carrying main body 1. A suction cup assembly 3 for adsorbing the vehicle door is connected to the side of the carrying main body 1, as well as a first linear motion mechanism 4 and a second linear motion mechanism 5. The fixed end of the first linear motion mechanism 4 is connected to the carrying main body 1, and the moving end of the first linear motion mechanism 4 is connected to the fixed end of the second linear motion mechanism 5. The suction cup assembly 3 is connected to the moving end of the second linear motion mechanism 5. The first linear motion mechanism 4 is arranged in the vertical direction, and the second linear motion mechanism 5 is arranged in the direction in which the suction cup assembly 3 approaches or moves away from the vehicle door.

[0035] Specifically, the carrying main body 1 is the main structure for carrying the disassembly and assembly trolley device, which can be built into a frame with lean tubes or profiles, and a plate is fixedly connected to the frame as the working plane. Universal wheels 7 are connected to the bottom of the carrying main body 1 to facilitate the movement of the disassembly and assembly trolley device within the working area. The support member 2 is preferably arranged on the bottom working surface of the carrying main body 1 and has a groove facing the bottom of the vehicle door, and the vehicle door can be correspondingly placed in the groove. The suction cup assembly 3 includes a suction cup main body, which adsorbs on the window glass of the vehicle door to ensure the adsorption stability. The first linear motion mechanism 4 is arranged in the vertical direction, which can be either perpendicular to the horizontal plane or vertically inclined at a certain angle to the horizontal plane. The second linear motion mechanism 5 is arranged in the direction in which the suction cup assembly 3 approaches or moves away from the vehicle door, which can be either horizontally facing the vehicle door or inclined at a certain angle to the horizontal plane and facing the vehicle door.

[0036] In this embodiment, the vehicle door is supported by the support member 2, and the side of the vehicle door is adsorbed by the suction cup assembly 3, so that the vehicle door can be fixed on the carrying main body 1, thus facilitating the installation and disassembly of the vehicle door. Due to the provision of the first linear motion mechanism 4 and the second linear motion mechanism 5, it is convenient to adjust the position of the suction cup assembly 3 to be applicable to vehicle doors of different specifications, making the disassembly and installation of the vehicle door more convenient. Since the suction cup assembly 3 is arranged at the moving end of the second linear motion mechanism 5, if the suction cup assembly 3 is to be moved closer to or away from the vehicle door, it can be achieved by only driving the second linear motion mechanism 5, without the need to move the first linear motion mechanism 4 together. Under this connection structure, the load borne by the second linear motion mechanism 4 is low.

[0037] Preferably, in this embodiment, the first linear motion mechanism 4 is arranged vertically, the second linear motion mechanism 5 is arranged horizontally in the direction towards the vehicle door, and the first linear motion mechanism 4 is perpendicular to the second linear motion mechanism 5. Through the first linear motion mechanism 4 and the second linear motion mechanism 5 arranged in the vertical direction and the horizontal direction, the suction cup assembly 3 can move in the vertical plane, facilitating connection with the vehicle door. The first linear motion mechanism 4 and the second linear motion mechanism 5 form a rectangular area, with a relatively large adjustable coverage area, and at the same time match the rectangular working surface of the carrying body 1. Of course, in some other embodiments, other angles can also be formed between the first linear motion mechanism 4 and the second linear motion mechanism 5 as long as it is convenient to adjust the position of the suction cup assembly 3.

[0038] In this embodiment, two sets of the first linear motion mechanism 4, the second linear motion mechanism 5, and the suction cup assembly 3 are respectively arranged in parallel, and the two sets of suction cup assemblies 3 are arranged in the same direction. The vehicle door is fixed more firmly by the two sets of suction cup assemblies 3, and the bottom support member 2 can better fix the vehicle door. When fixing the vehicle door, since the vehicle door may have a certain curvature, the two sets of suction cup assemblies 3 can be adjusted separately to more easily fit the vehicle door, making it convenient to disassemble and assemble the fixed vehicle door.

[0039] Preferably, the disassembly and assembly trolley device of this embodiment further includes a mounting rod 6. The two ends of the mounting rod 6 are respectively connected to the mobile ends of the two sets of first linear motion mechanisms 4, and the fixed ends of the two sets of second linear motion mechanisms 5 are both connected to the mounting rod 6. Specifically, the mounting rod 6 can be made of lean pipe, and the two sets of second linear motion mechanisms 5 are fixedly arranged in parallel on the mounting rod 6. In this embodiment, it is equivalent to indirectly connecting the mobile end of the first linear motion mechanism 4 and the fixed end of the second linear motion mechanism 5 by using the mounting rod 6, so that the two sets of suction cup assemblies 3 can move up and down synchronously. This is mainly because the curvature of the vehicle door is usually not too large, and in actual use, only the front and rear positions of the two sets of suction cup assemblies 3 need to be adjusted separately to adsorb on the vehicle door. Therefore, the up and down synchronous adjustment method is adopted to improve the stability of the overall structure. Of course, in some other embodiments, if it is necessary to separately adjust the up and down heights of the two suction cup assemblies 3, the mobile ends of the two sets of first linear motion mechanisms 4 can be directly connected to the fixed ends of the second linear motion mechanism 5 for separate adjustment.

[0040] In this embodiment, the first linear motion mechanism 4 is a guide rail slider mechanism, including a guide rail 41, a slider 42, and a locking member for fixing the slider 42 on the guide rail 41. The guide rail 41 is fixedly connected to the bearing body 1 in the vertical direction. The slider 42 is slidably connected to the guide rail 41, and the slider 42 is the moving end of the first linear motion mechanism 4. The second linear motion mechanism 5 is a cylinder, including a cylinder block 51 and a piston rod 52 movably connected to the cylinder block 51. The cylinder block 51 is fixedly connected to the slider 42, and the piston rod 52 is fixedly connected to the suction cup assembly 3. The piston rod 52 is the moving end of the second linear motion mechanism 5. A gas pump is also included, which is connected to the bearing body 1, and the output end of the gas pump is connected to the cylinder. It can be understood that the guide rail slider mechanism has a locking member, which can make the slider 42 in a fixed position on the guide rail 41. The guide rail slider mechanism with a locking function can adopt the existing technology and will not be elaborated here.

[0041] In this embodiment, the guide rail slider mechanism and the cylinder are used for driving. The cylinder is convenient for automatically adjusting the distance between the suction cup assembly 3 and the car door in the horizontal direction, which is beneficial to improving work efficiency. During the working process, it is necessary to frequently move the suction cup assembly 3 closer to or farther away from the car window in the horizontal direction for adsorption connection or separation. Therefore, using a cylinder can improve efficiency. The guide rail slider mechanism can manually adjust the height in the vertical direction, which is beneficial to cost savings. Considering that the height adjustment frequency of the suction cup assembly 3 in the vertical direction is not high, manually adjusting with the guide rail slider mechanism can reduce costs. In this embodiment, a gas pump for driving the cylinder is provided on the bearing body 1. Therefore, the cylinder does not need to be connected to an external air source device. Since it is not connected to an external device, the movement of the trolley device is more convenient.

[0042] It can be understood that the cylinder and the guide rail slider mechanism are only the preferred linear motion mechanisms in this embodiment. Those skilled in the art can select other linear motion mechanisms according to needs, such as screw sliders, electric push rods, etc.

[0043] Embodiment 2

[0044] Reference Figure 1 and Figure 2 , this embodiment is similar to Embodiment 1, the difference being that the suction cup assembly 3 in this embodiment includes a suction cup body 31, an elastic connecting member 32, and a telescopic connecting rod 33. One end of the telescopic connecting rod 33 is connected to the moving end of the second linear motion mechanism 5, and the other end of the telescopic connecting rod 33 is connected to the suction cup body 31. One end of the elastic connecting member 32 is connected to the suction cup body 31, and the other end of the elastic connecting member 32 is connected to the end of the telescopic connecting rod 33 away from the suction cup.

[0045] In this embodiment, since the suction cup assembly 3 is provided with an elastic connecting member 32 and a telescopic connecting rod 33, it can play an elastic buffering role in the connection between the suction cup and the car door. During the disassembly, assembly, and transportation of the car door, it can reduce the impact of the suction cup assembly 3 on the car window and protect the car door.

[0046] Preferably, in this embodiment, the telescopic connecting rod 33 includes a first sleeve rod and a second sleeve rod that are slidably sleeved (not shown in the figure). The first sleeve rod and the second sleeve rod are both provided with air flow channels (not shown in the figure) communicating with the suction cup along the axial direction. The first sleeve rod is connected to a vacuum pump (not shown in the figure) through a pipeline, and the second sleeve rod is connected to the suction cup body 31. The vacuum pump is connected to the air flow channel through a pipeline and connected to the suction cup body 31, so as to generate negative pressure in the suction cup body 31 and make the suction cup stably adsorbed on the car door.

[0047] Embodiment 3

[0048] Reference Figure 1 and Figure 2 This embodiment is similar to Embodiment 1, the difference being that the disassembly and assembly trolley device in this embodiment further includes a driving mechanism 8. The driving mechanism 8 is connected to the bottom of the carrying body 1 and is used to drive the support member 2 to lift. And the execution end of the driving mechanism 8 is connected to the support member 2. Specifically, the driving mechanism 8 can select structures such as an electric push rod or a cylinder. If a cylinder is used, it can be connected to the air pump in Embodiment 1 to facilitate air supply to it. Since different car doors have different sizes and the height of the car door from the ground may also be different, the driving mechanism 8 drives the support member 2 to lift, so that the support member 2 can effectively abut against the bottom of the car door after lifting adjustment, so as to fix and disassemble car doors of different specifications.

[0049] Embodiment 4

[0050] Reference Figure 1 and Figure 2 This embodiment is similar to Embodiment 1, the difference being that in the disassembly and assembly trolley device in this embodiment, instead of using the mounting rod 6 to connect the mobile end of the first linear motion mechanism 4 and the fixed end of the second linear motion mechanism 5, it further includes a third linear motion mechanism (not shown in the figure). Specifically, the third linear motion mechanism is connected between the first linear motion mechanism 4 and the second linear motion mechanism 5. Among them, the fixed end of the third linear motion mechanism is connected to the mobile end of the first linear motion mechanism 4, the mobile end of the third linear motion mechanism is connected to the fixed end of the second linear motion mechanism 5, and the third linear motion mechanism is perpendicular to the first linear motion mechanism 4 and the second linear motion mechanism 5. Due to the presence of the third linear motion mechanism, the suction cup can adjust its position on the horizontal plane, facilitating connection with the car door.

[0051] In this embodiment, the first linear motion mechanism 4, the second linear motion mechanism 5, and the third linear motion mechanism are equivalent to forming moving workbenches in the X, Y, and Z directions, enabling the suction cup assembly 3 to adjust its position within a large space. The third linear motion mechanism can also be set in two groups, respectively connecting the two groups of suction cup assemblies 3.

[0052] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A trolley device for disassembling and assembling a vehicle door, characterized in that: The invention comprises a bearing body (1), a first linear motion mechanism (4) and a second linear motion mechanism (5); a support member (2) for supporting a vehicle door is connected to the bottom of the bearing body (1); a suction cup assembly (3) for adsorbing the vehicle door is connected to the side of the bearing body (1); a fixed end of the first linear motion mechanism (4) is connected to the bearing body (1); a movable end of the first linear motion mechanism (4) is connected to the fixed end of the second linear motion mechanism (5); the suction cup assembly (3) is connected to the movable end of the second linear motion mechanism (5); the first linear motion mechanism (4) is arranged in a vertical direction; and the second linear motion mechanism (5) is arranged in a direction in which the suction cup assembly (3) approaches or moves away from the vehicle door.

2. The door disassembly and assembly trolley device according to claim 1, characterized in that: It also comprises a driving mechanism (8) for driving the support member (2) to rise and fall, the driving mechanism (8) being connected to the bearing body (1), and the execution end of the driving mechanism (8) being connected to the support member (2).

3. The door disassembly and assembly trolley device according to claim 1 or 2, characterized in that: The second linear motion mechanism (5) is arranged horizontally in a direction toward the vehicle door, and the first linear motion mechanism (4) and the second linear motion mechanism (5) are arranged vertically.

4. The door disassembly and assembly trolley device according to claim 3, characterized in that: The first linear motion mechanism (4), the second linear motion mechanism (5) and the suction cup assembly (3) are each provided in two groups in parallel, and the two groups of suction cup assemblies (3) are arranged in the same direction.

5. The door disassembly and assembly trolley device according to claim 4, characterized in that: It also comprises a mounting rod (6), the two ends of which are respectively connected to the movable ends of the two groups of the first linear motion mechanisms (4), and the fixed ends of the two groups of the second linear motion mechanisms (5) are both connected to the mounting rod (6).

6. The disassembly and assembly trolley device for vehicle doors according to claim 1, characterized in that: The first linear motion mechanism (4) is a guide rail and slider mechanism, comprising a guide rail (41), a slider (42) and a locking member for fixing the slider (42) on the guide rail (41); the guide rail (41) is fixedly connected to the bearing body (1) in a vertical direction; the slider (42) is slidably connected to the guide rail (41); and the slider (42) is a moving end of the first linear motion mechanism (4).

7. The door disassembly and assembly trolley device according to claim 6, characterized in that: The second linear motion mechanism (5) is a cylinder, comprising a cylinder body (51) and a piston rod (52) movably connected to the cylinder body (51); the cylinder body (51) is fixedly connected to the slider (42); the piston rod (52) is fixedly connected to the suction cup assembly (3); the piston rod (52) is the movable end of the second linear motion mechanism (5); the disassembly and assembly trolley device also comprises an air pump, which is connected to the supporting body (1), and the output end of the air pump is connected to the cylinder.

8. The door disassembly and assembly trolley device according to claim 1, characterized in that: The suction cup assembly (3) comprises a suction cup body (31), an elastic connecting member (32) and a telescopic connecting rod (33), one end of the telescopic connecting rod (33) is connected to the movable end of the second linear motion mechanism (5), the other end of the telescopic connecting rod (33) is connected to the suction cup body (31), one end of the elastic connecting member (32) is connected to the suction cup body (31), and the other end of the elastic connecting member (32) is connected to an end of the telescopic connecting rod (33) away from the suction cup.

9. The door disassembly and assembly trolley device according to claim 8, characterized in that: The telescopic connecting rod (33) comprises a first rod and a second rod which are slidably sleeved, the first rod and the second rod being provided with an air flow channel connected to the suction cup along the axial direction, the first rod being connected to a vacuum pump via a pipeline, and the second rod being connected to the suction cup body (31).

10. The door disassembly and assembly trolley device according to claim 1, characterized in that: The invention also comprises a third linear motion mechanism connected between the first linear motion mechanism (4) and the second linear motion mechanism (5), wherein the fixed end of the third linear motion mechanism is connected to the movable end of the first linear motion mechanism (4), the movable end of the third linear motion mechanism is connected to the fixed end of the second linear motion mechanism (5), and the third linear motion mechanism is perpendicular to the first linear motion mechanism (4) and the second linear motion mechanism (5).

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