Lift car reinforcing device based on 4D printing technology

Through the car reinforcement device based on 4D printing technology, the combination of shape memory polymer reinforcement ribs and adsorption components is used to solve the problem of difficulty in installing reinforcement ribs caused by insufficient space in the small shaft, and the effect of simplifying the installation process and reducing labor costs is achieved.

CN222809085UActive Publication Date: 2025-04-29GUANGZHOU GUANGRI ELEVATOR IND
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Patent Information

Application Number
CN202421205169.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-04-29
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

When strengthening the wall panel of the elevator car, the construction personnel cannot enter to install reinforcement ribs due to the small space of the shaft, resulting in a cumbersome installation process and high labor costs.

Method used

Using a car reinforcement device based on 4D printing technology, the shape memory polymer reinforcement ribs made by 4D printing technology are used to adsorb the shell on the car wall panel using an adsorption assembly, and the reinforcement ribs are heated through moving blocks and heating components, so that they are expanded and nested and fixed on the wall panel.

Benefits of technology

It is realized that reinforcement ribs are installed on the car wall panel without removing the wall panel, which greatly simplifies the installation of reinforcement ribs and reduces labor costs and operation difficulties.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a lift car reinforcing device based on the 4D printing technology. The lift car reinforcing device comprises a shell; the adsorption assembly is arranged on one side wall of the shell and used for adsorbing the shell to a car wall plate; the moving block is arranged on the shell in a sliding manner; the first moving assembly is arranged on the shell, connected with the moving block and used for driving the moving block to move along the shell; the reinforcing ribs are made of shape memory polymer materials; the heating assembly is arranged on the moving block and used for heating the reinforcing ribs; and the clamping assembly is arranged on the heating assembly and used for clamping the reinforcing ribs. Reinforcing ribs are additionally arranged on the wallboards through the 4D printing technology, operation is easy, and constructors do not need to enter a hoistway.
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Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and in particular relates to a car reinforcement device based on 4D printing technology. Background Art

[0002] The car is one of the structures of the elevator. The appearance quality of the elevator car affects the workmanship quality of the manufacturer and is directly related to the safe and reliable operation of the elevator. In addition, the car is the most concentrated location for passengers to interact with the elevator. The strength of the car will largely determine the passengers' evaluation of the elevator. Collect feedback on car problems on the market. When the car wall panel is pressed or pulled, the deformation is obvious. Passengers will feedback that the strength is insufficient and there are safety issues. At this time, the usual practice is to weld reinforcement ribs on the back of the wall panel. However, when welding reinforcement ribs, in addition to requiring construction workers to enter the back of the wall panel in the shaft to operate, the welding equipment also requires a larger space. For the increasing number of small shafts (the space between the wall panel and the shaft wall is very small) elevators, the shaft space is small. When installing reinforcement ribs, construction workers cannot enter the shaft to install reinforcement ribs on the wall panel. They need to remove the entire wall panel and install the reinforcement ribs, and then install the wall panel back. The installation process is cumbersome and the labor cost is very high. Utility Model Content

[0003] The purpose of the utility model is to provide a car reinforcement device based on 4D printing technology, which uses 4D printing technology to add reinforcement ribs to the wall panels. The operation is simple and construction workers do not need to enter the shaft.

[0004] The utility model is realized by the following technical solutions:

[0005] A car reinforcement device based on 4D printing technology, comprising:

[0006] shell;

[0007] An adsorption component is arranged on a side wall of the shell and is used to adsorb the shell on the wall panel of the car;

[0008] A moving block, the moving block is slidably arranged on the housing;

[0009] A first moving assembly, which is disposed on the housing and connected to the moving block and is used to drive the moving block to move along the housing;

[0010] Reinforcement ribs, the reinforcement ribs are made of shape memory polymer material;

[0011] A heating component is arranged on the moving block and is used for heating the reinforcing ribs;

[0012] The clamping assembly is arranged on the heating assembly and is used for clamping the reinforcing ribs.

[0013] Furthermore, it also includes a second moving component, which is arranged on the moving block and connected to the heating component, and is used to drive the heating component away from or close to the shell.

[0014] Furthermore, it also includes a control component arranged on one end of the shell, the control component includes a controller and a first moving button for controlling the moving direction of the first moving component, a second moving button for controlling the moving direction of the second moving component, a heating button for controlling the operation of the heating component and an adsorption button for controlling the operation of the adsorption component, which are electrically connected to the controller respectively. The controller is electrically connected to the adsorption component, the first moving component and the heating component respectively.

[0015] Furthermore, the second moving component includes a second driving unit, a first gear and a matching rod. A mounting hole is opened on the moving block. One end of the matching rod is connected to the heating component. The other end of the matching rod is inserted into the mounting hole and threadedly connected to the mounting hole. The first gear is sleeved on the outside of the matching rod and threadedly connected to the matching rod. The first gear is rotatably set on the moving block. The second driving unit is drivingly connected to the first gear for driving the first gear to rotate.

[0016] Furthermore, the shell is hollow inside, the moving block and the first moving component are arranged in the shell, a strip hole for the matching rod to move is opened on one side wall of the shell, and the adsorption component is arranged on the side wall of the shell with the strip hole.

[0017] Furthermore, the heating assembly includes a base plate, a heat diffusion plate and a heating rod. The base plate is arranged on the moving block. The heat diffusion plate is arranged around the outer periphery of the base plate and is connected to the base plate to form a accommodating cavity with an open end. The heating rod and the clamping assembly are both located in the accommodating cavity and arranged on the base plate.

[0018] Furthermore, the heating component also includes a distance sensor, which is located in the accommodating cavity and arranged on the bottom plate, and the distance sensor is electrically connected to the controller.

[0019] Furthermore, the control component also includes a display screen, and the display screen is electrically connected to the controller.

[0020] Furthermore, the first moving component includes a transmission rod and a first driving unit, transmission wheels are provided at both ends of the transmission rod, the transmission wheels are rotatably arranged on the outer shell, the first driving unit is connected to any transmission wheel, and is used to drive the transmission wheel to rotate, the transmission rod is passed through the moving block, and is threadedly connected to the moving block.

[0021] Furthermore, the adsorption assembly includes a plurality of adsorption units, each of which includes a suction cup and an air extractor connected to the suction cup, and the air extractor is arranged on a side wall of the shell.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows: the reinforcement ribs are made by 4D printing technology. When in use, the outer shell is adsorbed on the car wall panel by the adsorption component, and then the moving block and the clamping component are moved to the reinforcement rib installation position by the first moving component, and the reinforcement ribs are heated by the heating component, so that the reinforcement ribs change shape, unfold into the original shape of the reinforcement ribs and are nested and fixed with the car wall panel, thereby realizing the installation of reinforcement ribs on the car wall panel, solving the problem that when reinforcing the car wall panel, the operating space of the small shaft is small and the construction personnel cannot enter the shaft to operate, and there is no need to remove the car wall panel, which greatly simplifies the installation of reinforcement ribs, reduces the difficulty of installation, and reduces labor costs, thereby helping enterprises to reduce costs and increase efficiency; the utility model realizes the installation of reinforcement ribs at the rear end, and has the advantages of high economy, good concentration and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of the car reinforcement device based on 4D printing technology of the utility model;

[0024] Figure 2 This is a schematic diagram of the car reinforcement device based on 4D printing technology of the utility model being adsorbed on the car wall panel;

[0025] Figure 3 This is a structural schematic diagram of the first moving component in the car reinforcement device based on 4D printing technology of the utility model;

[0026] Figure 4 This is a schematic diagram of the connection between the second moving component and the heating component in the car reinforcement device based on 4D printing technology of the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the heating component in the car reinforcement device based on 4D printing technology of the utility model;

[0028] Figure 6 This is a schematic diagram of the reinforcing ribs in the car reinforcement device based on 4D printing technology of the utility model before and after heating.

[0029] In the figure, 1-shell, 11-bar hole, 2-adsorption component, 21-suction cup, 22-vacuum fan, 3-moving block, 31-mounting hole, 4-first moving component, 41-first driving unit, 42-transmission rod, 43-transmission wheel, 5-heating component, 51-bottom plate, 52-heat diffusion plate, 53-heating rod, 54-distance sensor, 6-clamping component, 7-reinforcement rib, 8-second moving component, 81-second driving unit, 82-first gear, 83-matching rod, 9-control component, 91-first moving button, 92-second moving button, 93-heating button, 94-adsorption button, 95-display screen, 10-car wall panel. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the 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 cannot be understood as a limitation on the present utility model.

[0035] See also Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the structure of the car reinforcement device based on 4D printing technology in the utility model. Figure 2 This is a schematic diagram of the car reinforcement device based on 4D printing technology in the utility model being adsorbed on the car wall panel. Figure 3 The structure diagram of the first moving component in the car reinforcement device based on 4D printing technology of the utility model. A car reinforcement device based on 4D printing technology includes a shell 1, an adsorption component 2, a moving block 3, a first moving component 4, a reinforcing rib 7, a heating component 5 and a clamping component 6. The adsorption component 2 is arranged on a side wall of the shell 1, and is used to adsorb the shell 1 on the car wall panel 10. The moving block 3 is slidably arranged on the shell 1. The first moving component 4 is arranged on the shell 1 and connected to the moving block 3, and is used to drive the moving block 3 to move along the shell 1. The reinforcing rib 7 is made of shape memory polymer material. The heating component 5 is arranged on the moving block 3, and is used to heat the reinforcing rib 7. The clamping component 6 is arranged on the heating component 5, and is used to clamp the reinforcing rib 7.

[0036] Please refer to Figure 6 , Figure 6 It is a schematic diagram of the reinforcing ribs before and after heating in the car reinforcement device based on 4D printing technology of the utility model, wherein Figure 6 (a) is the folded state of the rib before heating. Figure 6 (b) is the unfolded state of the reinforcement rib after heating. The reinforcement rib 7 is made of shape memory polymer material, such as polyurethane (PU), and is made by 4D printing technology. Polyurethane (PU) has a good shape memory effect, and its strength is equivalent to medium mechanical strength. 4D printing technology is a new technology that adds the dimension of time to 3D printing technology, which enables the printed object to achieve a specific shape deformation under certain specific conditions (such as humidity, temperature, light, magnetism, etc.). That is, the reinforcement rib 7 has the property of shape memory, which can remember the previous shape of the reinforcement rib 7. After heating, the reinforcement rib 7 can spontaneously drive the change of shape, that is, under the action of heating, the reinforcement rib 7 in the folded state will unfold into the original shape of the reinforcement rib 7. The deformation can be accurately designed during printing. This is a prior art and will not be repeated again.

[0037] When the car reinforcement device based on 4D printing technology of the utility model is in use, the construction personnel can stand on the top of the car, lower the car reinforcement device based on 4D printing technology of the utility model to the rear side of the car wall panel 10, and then adsorb the outer shell 1 on the car wall panel 10 through the adsorption component 2. The reinforcing rib 7 before deformation is clamped on the clamping component 6, and the moving block 3, the heating component 5 and the clamping component 6 are moved to the installation position of the reinforcing rib 7 by the first moving component 4, and then the reinforcing rib 7 before deformation is heated by the heating component 5, so that the reinforcing rib 7 changes its shape and unfolds into the original shape of the reinforcing rib 7. During this process, the reinforcing rib 7 will be inserted into the bending plate of the car wall panel 10 and fixed, so that the reinforcing rib 7 and the car wall panel 10 are nested and fixed, thereby realizing the installation of the reinforcing rib 7 on the car wall panel 10, which solves the problem that when reinforcing the car wall panel 10, the operating space of the small shaft is small and the construction personnel cannot enter the shaft for operation, and there is no need to remove the car wall panel 10, which greatly simplifies the installation of the reinforcing rib 7, reduces the difficulty of installation, and reduces labor costs, thereby helping enterprises to reduce costs and increase efficiency.

[0038] Please refer to Figure 4 , Figure 4 The figure is a schematic diagram of the connection between the second moving component and the heating component in the car reinforcement device based on 4D printing technology of the utility model. In order to adjust the distance between the reinforcing rib 7 and the car wall panel 10 and ensure that the reinforcing rib 7 can be nested on the car wall panel 10, in one embodiment, the car reinforcement device based on 4D printing technology of the utility model further includes a second moving component 8, which is arranged on the moving block 3 and connected to the heating component 5, and is used to drive the heating component 5 away from or close to the shell 1. The heating component 5 is driven away from or close to the shell 1 by the second moving component 8, so that the reinforcing rib 7 clamped by the clamping component 6 can be close to or away from the car wall panel 10, thereby adjusting the distance between the reinforcing rib 7 and the car wall panel 10.

[0039] In one embodiment, the second moving assembly 8 includes a second driving unit 81, a first gear 82 and a matching rod 83. The moving block 3 is provided with a mounting hole 31. One end of the matching rod 83 is connected to the heating assembly 5. The other end of the matching rod 83 is inserted into the mounting hole 31 and is threadedly connected to the mounting hole 31. The first gear 82 is sleeved on the outside of the matching rod 83 and is threadedly connected to the matching rod 83. The first gear 82 is rotatably arranged on the moving block 3. The second driving unit 81 is drivingly connected to the first gear 82 to drive the first gear 82 to rotate. The first gear 82 drives the matching rod 83 to rotate by the second driving unit 81. Since the moving block 3 is fixed and the moving block 3 is threadedly connected to the matching rod 83, the rotation of the matching rod 83 is converted into the movement of the matching rod 83 along the mounting hole 31, thereby driving the heating assembly 5 away from or close to the housing 1 through the matching rod 83. In one embodiment, the second driving unit 81 includes a second motor and a second gear. The second gear is rotatably arranged on the moving block 3 and meshes with the first gear 82. The second motor is drivingly connected to the second gear to drive the second gear to rotate. The second motor drives the second gear to rotate, so that the second gear drives the first gear 82 to rotate. The second motor can be arranged in the moving block 3.

[0040] In one embodiment, the car reinforcement device based on 4D printing technology of the utility model also includes a control component 9 arranged on one end of the outer shell 1, the control component 9 includes a controller and a first moving button 91 for controlling the moving direction of the first moving component 4, a second moving button 92 for controlling the moving direction of the second moving component 8, a heating button 93 for controlling the operation of the heating component 5 and an adsorption button 94 for controlling the operation of the adsorption component 2, which are electrically connected to the controller respectively. The controller is electrically connected to the adsorption component 2, the first moving component 4 and the heating component 5 respectively. The construction personnel can control the adsorption component 2, the first moving component 4 and the heating component 5 through the control component 9 to control the installation of the reinforcing ribs 7. For example, if the adsorption component 2 needs to be adsorbed on the car wall panel 10, the adsorption button 94 is pressed, and the controller controls the adsorption component 2 to work so that the adsorption component 2 is adsorbed on the car wall panel 10. After the reinforcing ribs 7 are installed, the adsorption button 94 is pressed again, and the controller controls the adsorption component 2 to stop working so that the adsorption component 2 is separated from the car wall panel 10. When heating is required, the heating button 93 is pressed, and the controller heating component 5 works to heat the reinforcing ribs 7. After heating is completed, the heating button 93 is pressed again, and the controller controls the heating component 5 to stop working. The first moving button 91 may include up and down buttons. By pressing the up button, the controller controls the first moving component 4 to drive the moving block 3 to move upward along the outer shell 1, and by pressing the down button, the controller controls the first moving component 4 to drive the moving block 3 to move downward along the outer shell 1. The second movable component 8 may include left and right buttons. By pressing the left button, the controller controls the second movable component 8 to drive the heating component 5 to move away from the outer shell 1, so that the reinforcing rib 7 on the clamping component 6 is close to the car wall panel 10, and by pressing the right button, the controller controls the second movable component 8 to drive the heating component 5 to move in the direction close to the outer shell 1, so that the reinforcing rib 7 on the clamping component 6 is away from the car wall panel 10.

[0041] In one embodiment, the interior of the housing 1 is hollow, the moving block 3 and the first moving component 4 are arranged in the housing 1, a strip hole 11 for the matching rod 83 to move is opened on one side wall of the housing 1, and the adsorption component 2 is arranged on the side wall of the housing 1 where the strip hole 11 is opened. The extension direction of the strip hole 11 is the same as the length direction of the housing 1, and the moving block 3 and the first moving component 4 are arranged in the housing 1, so that the moving block 3 and the first moving component 4 can be protected, and the moving block 3 and the first moving component 4 collide with the external structure, resulting in damage to the moving block 3 or the first moving component 4.

[0042] In one embodiment, the first moving assembly 4 includes a transmission rod 42 and a first driving unit 41. Transmission wheels 43 are provided at both ends of the transmission rod 42. The transmission wheels 43 are rotatably arranged on the housing 1. The first driving unit 41 is connected to any transmission wheel 43 to drive the transmission wheel 43 to rotate. The transmission rod 42 is penetrated on the moving block 3 and is threadedly connected with the moving block 3. The moving block 3 is provided with a bar hole 11 for the transmission rod 42 to pass through. The transmission wheel 43 is driven to rotate by the first driving unit 41, and the rotating wheel drives the transmission rod 42 to rotate. Since the moving block 3 is slidably connected with the housing 1 and the moving block 3 is threadedly connected with the transmission rod 42, when the transmission rod 42 rotates, the moving block 3 moves along the axis of the transmission rod 42, thereby realizing the movement of the moving block 3 along the housing 1. By driving the transmission wheel 43 to rotate in different directions by the first driving unit 41, the moving block 3 can be controlled to move in different directions on the housing 1 along the housing 1. In one embodiment, the number of the transmission rods 42 is two, and the two transmission rods 42 are arranged at intervals. The moving block 3 is provided with through holes for the two transmission rods 42 to pass through respectively. The two transmission rods 42 are respectively arranged on the two through holes and are respectively threadedly connected with the two through holes. The two transmission rods 42 are used so that the moving block 3 moves more smoothly along the housing 1, and the rotation of the transmission rod 42 is converted into the axial movement of the moving block 3 along the transmission rod 42. In one embodiment, the first driving unit 41 includes a first motor and a belt. A driving wheel is provided on the driving end of the first motor, and the belt is wound around the driving wheel and two transmission wheels 43 on the same end of the housing 1. The first motor drives the two transmission wheels 43 on the same end of the housing 1 to rotate through the driving wheel and the belt, thereby driving the two transmission rods 42 to rotate.

[0043] Please refer to Figure 5 , Figure 5The structure diagram of the heating assembly in the car reinforcement device based on 4D printing technology of the utility model. In one embodiment, the heating assembly 5 includes a bottom plate 51, a heat diffusion plate 52 and a heating rod 53. The bottom plate 51 is arranged on the moving block 3. The heat diffusion plate 52 is arranged around the outer periphery of the bottom plate 51 and connected with the bottom plate 51 to form a receiving cavity with one end open. The heating rod 53 and the clamping assembly 6 are both located in the receiving cavity and arranged on the bottom plate 51. The heat diffusion plate 52 can concentrate the heat generated by the heating rod 53, so that the heat is concentrated and transferred to the reinforcing rib 7 clamped by the clamping assembly 6. In one embodiment, the heating assembly 5 also includes a distance sensor 54, which is located in the receiving cavity and arranged on the bottom plate 51. The distance sensor 54 is electrically connected to the controller. The distance sensor 54 is used to measure the distance data between it and the car wall panel 10, and transmit the distance data to the controller, so as to determine the installation position of the reinforcing rib 7. In one embodiment, the control assembly 9 also includes a display screen 95, which is electrically connected to the controller. The display screen 95 is used to display information collected by the controller, such as the heating temperature, the distance and height between the reinforcing rib 7 and the car wall panel 10, wherein the height can be quantified by the number of rotations of the first motor, so as to facilitate the construction personnel to operate the car reinforcement device based on 4D printing technology of the utility model. In one embodiment, the controller is a single chip microcomputer. In one embodiment, the clamping assembly 6 is a mechanical clamping arm. The clamping assembly 6 adopts an existing commonly used mechanical clamping arm, and drives the two arms to move closer to or away from each other through a bidirectional cylinder, thereby clamping or releasing the reinforcing rib 7.

[0044] In one embodiment, the adsorption assembly 2 includes a plurality of adsorption units, each of which includes a suction cup 21 and an air extractor 22 connected to the suction cup 21, and the air extractor 22 is disposed on the side wall of the housing 1. When the adsorption assembly 2 is working, the air extractor 22 extracts air to create a vacuum area, so that the suction cup 21 is close to the car wall panel 10 and is adsorbed on the car wall panel 10 under the action of atmospheric pressure. When the adsorption assembly 2 stops working, the air extractor 22 first supplies air for a period of time to loosen the suction cup 21, and then stops the operation of the air extractor 22.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A car reinforcement device based on 4D printing technology, characterized in that: include: shell; An adsorption component, which is arranged on a side wall of the shell and is used to adsorb the shell on the car wall panel; A moving block, wherein the moving block is slidably disposed on the housing; A first moving assembly, which is disposed on the housing and connected to the moving block and is used to drive the moving block to move along the housing; A reinforcing rib, wherein the reinforcing rib is made of a shape memory polymer material; A heating component, the heating component is arranged on the moving block and is used to heat the reinforcing rib; A clamping assembly is arranged on the heating assembly and is used for clamping the reinforcing rib.

2. The car reinforcement device based on 4D printing technology according to claim 1 is characterized in that: It also includes a second moving component, which is arranged on the moving block and connected to the heating component, and is used to drive the heating component away from or close to the shell.

3. The car reinforcement device based on 4D printing technology according to claim 2 is characterized in that: It also includes a control component arranged on one end of the shell, the control component includes a controller and a first moving button for controlling the moving direction of the first moving component, a second moving button for controlling the moving direction of the second moving component, a heating button for controlling the operation of the heating component and an adsorption button for controlling the operation of the adsorption component, which are electrically connected to the controller respectively. The controller is electrically connected to the adsorption component, the first moving component and the heating component respectively.

4. The car reinforcement device based on 4D printing technology according to claim 2 is characterized in that: The second moving assembly includes a second driving unit, a first gear and a matching rod. A mounting hole is provided on the moving block. One end of the matching rod is connected to the heating assembly. The other end of the matching rod is inserted into the mounting hole and threadedly connected to the mounting hole. The first gear is sleeved on the outside of the matching rod and threadedly connected to the matching rod. The first gear is rotatably set on the moving block. The second driving unit is drivingly connected to the first gear for driving the first gear to rotate.

5. The car reinforcement device based on 4D printing technology according to claim 4 is characterized in that: The shell is hollow inside, the moving block and the first moving component are arranged in the shell, a strip hole for the matching rod to move is opened on one side wall of the shell, and the adsorption component is arranged on the side wall of the shell with the strip hole.

6. The car reinforcement device based on 4D printing technology according to claim 2 is characterized in that: The heating assembly includes a base plate, a heat diffusion plate and a heating rod. The base plate is arranged on a moving block. The heat diffusion plate is arranged around the outer periphery of the base plate and is connected to the base plate to form a receiving cavity with an open end. The heating rod and the clamping assembly are both located in the receiving cavity and are arranged on the base plate.

7. The car reinforcement device based on 4D printing technology according to claim 6 is characterized in that: The heating component further comprises a distance sensor, which is located in the accommodating cavity and arranged on the bottom plate, and is electrically connected to the controller.

8. The car reinforcement device based on 4D printing technology according to claim 3 is characterized in that: The control component also includes a display screen, which is electrically connected to the controller.

9. The car reinforcement device based on 4D printing technology according to claim 1, characterized in that: The first moving component includes a transmission rod and a first driving unit. Transmission wheels are provided at both ends of the transmission rod. The transmission wheels are rotatably arranged on the outer shell. The first driving unit is connected to any transmission wheel to drive the transmission wheel to rotate. The transmission rod is passed through the moving block and is threadedly connected to the moving block.

10. The car reinforcement device based on 4D printing technology according to claim 1, characterized in that: The adsorption assembly includes a plurality of adsorption units, each of which includes a suction cup and an air extractor connected to the suction cup, and the air extractor is arranged on a side wall of the shell.