Clutch pedal

Abstract

The utility model is applicable to the technical field of pedal simulation equipment, and provides a clutch pedal, which comprises a mounting base, a sliding groove, a pedal plate, a pedal plate, a pedal plate, a pedal plate and a pedal plate, and is characterized in that a cavity structure is formed inside the mounting base; the pedal assembly is mounted on the mounting base, and the pedal assembly is provided with a connecting rod; and the telescopic assembly is mounted on the mounting base and is provided with a pulley. The installation base is used for installing the pedal assembly and the telescopic assembly, the sliding groove is formed in the installation base, and the sliding groove is used for guiding the pedal assembly to move along the groove wall of the sliding groove. The telescopic assembly is pressed by the pedal assembly, so that a pulley on the telescopic assembly moves along a sliding groove to achieve the sectional force feeling of the pedal assembly in the rotating process, and when the pedal assembly is treaded by different forces, the telescopic assembly drives the pedal assembly to move, so that the pedal assembly simulates the sectional force feeling. The problems that the sectional force feeling of the pedal of a real vehicle cannot be simulated, and the use experience feeling is affected are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of simulated pedal equipment, in particular to a clutch pedal. Background Art

[0002] The clutch pedal simulator is a device that simulates the operation of a real vehicle clutch pedal. It is mainly used in simulation training, virtual simulation, R&D testing and other fields. The pedal simulator is widely used in driving training, virtual simulation, human-machine interface R&D, performance testing and scientific research experiments. By simulating real clutch operation, it can improve training results, promote product R&D and testing, and promote progress in the field of scientific research.

[0003] The clutch pedal simulation device is mainly composed of a pedal and pedal sensor, an actuator, a control system, a connecting rod and a supporting structure, an electrical connection and a data interface. The clutch pedal can simulate the actual operation process of the clutch, provide an operating experience, and interact with other systems for data.

[0004] The clutch pedal simulation device commonly used in the prior art has a single design structure. Most clutch pedals cannot truly simulate the pedaling feeling of a real clutch. The pedaling force is very linear without any difference in weight. The pedal feedback is consistent as the pedal force increases or decreases. It cannot truly simulate the feeling of stepping on the clutch, and the segmented force sense of the pedal of a real vehicle cannot be simulated, affecting the user experience. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to provide a clutch pedal, aiming to solve the problem that most pedal simulation devices cannot truly simulate the pedaling feeling of a real clutch, the pedaling force is very linear, there is no difference between light and heavy, the pedal pressure becomes larger or smaller, the feedback given by the pedal is also consistent, and it is unable to truly simulate the feeling of stepping on the clutch, resulting in the inability to simulate the segmented force feeling of the pedal of a real vehicle, affecting the user experience.

[0006] The utility model is implemented in this way: a clutch pedal, the clutch pedal comprising:

[0007] An installation base is provided with a slide groove, the slide groove is provided with a first section and a second section, the first section and the second section have different directions, and a connection between the first section and the second section has a smooth transition;

[0008] A pedal assembly is mounted on the mounting base, the pedal assembly is provided with a connecting rod, and the connecting rod is connected to the telescopic assembly;

[0009] The telescopic component is installed on the mounting base. The telescopic component is provided with a pulley. The telescopic component is pressed by the pedal component so that the pulley on the telescopic component moves along the slide groove to realize the segmented force feeling of the pedal component during the rotation process.

[0010] Preferably, the mounting base includes a first limiting groove, a first support plate and a second support plate, the first support plate and the second support plate are connected by multiple groups of first connecting shafts, and multiple first mounting grooves are respectively arranged on the two opposite surfaces of the first support plate and the second support plate, the first mounting groove is used to install the guide assembly, and the first support plate and the second support plate are used to support the pedal assembly and the telescopic assembly.

[0011] Preferably, two groups of the slide grooves are provided and are respectively provided on two opposite surfaces of the first support plate and the second support plate, and the slide grooves are arc-shaped structures.

[0012] Preferably, two groups of the first limiting grooves are arranged and are respectively located on the first support plate and the second support plate; the first limiting grooves are arranged in an arc shape and are provided with a first limiting area and a second limiting area; a positioning protrusion is arranged at the connection between the first limiting area and the second limiting area, and the positioning protrusion is used to position the pedal assembly.

[0013] Preferably, the pedal assembly includes a limit rod, a pedal, an adjustment frame and a connecting assembly, the limit rod cooperates with the first limit groove on the mounting base to limit the movement stroke of the pedal assembly in the vertical direction, the pedal is installed on the top of the adjusting frame through the connecting frame, the adjusting frame is provided with two groups of first connecting plates and a plurality of connecting rods, a plurality of mounting holes and a second mounting groove are provided on two opposite surfaces of the two groups of the first connecting plates, the mounting holes are used for installing the connecting rods and the mounting parts, and the second mounting grooves are used for installing the connecting assembly; the connecting rods are used to connect with the telescopic assembly, and at most one group of connecting rods is connected with the telescopic assembly to facilitate adjusting the installation position of the telescopic assembly, the mounting parts are used to install the connecting frame on the first limit groove to facilitate connecting the adjusting frame with the mounting base, and the connecting assembly is used to connect with the mounting base.

[0014] Preferably, the connecting assembly includes a second connecting plate, a first connecting spring and a third connecting plate, connecting protrusions are arranged on both sides of the second connecting plate, the connecting protrusions are embedded in the second mounting groove of the first connecting plate, one end of the first connecting spring is installed on the second connecting plate, and the other end is connected to the third connecting plate, and the third connecting plate is installed at the bottom of the mounting base.

[0015] Preferably, the telescopic assembly includes a first telescopic rod, an intermediate rod and a second connecting spring, one end of the first telescopic rod is installed on the connecting rod on the pedal assembly, the other end of the first telescopic rod is connected to the top of the intermediate rod, the end of the intermediate rod is connected to the second connecting shaft, both ends of the second connecting shaft are respectively connected to the pulley and embedded in the slide groove, the middle part of the second connecting shaft is connected to one end of the second connecting spring, and the other end of the second connecting spring is installed on the mounting base through the third connecting shaft.

[0016] Preferably, the guide assembly is also provided with a limit plate and a positioning rod, the limit plate is used to limit the moving stroke of the telescopic assembly, the limit plate is a bending structure, the limit plate is provided with a plurality of mounting protrusions, the mounting protrusions are embedded in the first mounting groove so that the two sides of the limit plate are respectively connected to the first support plate and the second support plate, and the positioning rod is provided at the bending part of the limit plate, and the positioning rod is used to position the telescopic assembly.

[0017] The utility model provides a clutch pedal, which comprises a mounting base for mounting a pedal assembly and a telescopic assembly, a slide groove being arranged on the mounting base, the slide groove being used to guide the pedal assembly to move along the groove wall of the slide groove, the pedal assembly being connected to the telescopic assembly through a connecting rod, the telescopic assembly can guide the telescopic assembly through a guide plate on the guide assembly to drive the pedal assembly to move, the telescopic assembly is pressed by the pedal assembly so that the pulley on the telescopic assembly moves along the slide groove to realize a segmented force sense of the pedal assembly during rotation, when the pedal assembly is subjected to a stepping feeling of different forces, the telescopic assembly drives the pedal assembly to move along the slide groove so that the pedal assembly simulates a segmented force sense, thereby solving the problem of being unable to simulate the segmented force sense of the pedal of a real vehicle, thereby affecting the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural diagram of a clutch pedal provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the internal structure of a clutch pedal provided in an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the internal structure of a clutch pedal provided by an embodiment of the utility model from a side view;

[0021] Figure 4 A schematic diagram of the internal structure of a clutch pedal provided in an embodiment of the utility model.

[0022] In the accompanying drawings: 1. Mounting base; 11. First support plate; 12. Second support plate; 13. Slide groove; 14. Limiting groove; 2. Pedal assembly; 21. Pedal; 22. Connecting frame; 23. Adjusting frame; 231. Connecting rod; 232. First connecting plate; 24. Connecting assembly; 241. Second connecting plate; 242. First connecting spring; 243. Third connecting plate; 25. Limiting rod; 3. Telescopic assembly; 31. First telescopic rod; 32. Intermediate rod; 33. Second connecting spring; 34. Guide assembly; 341. Guide plate; 342. Positioning rod; 343. Limiting plate; 35. Pulley; 36. Second connecting shaft. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0025] like Figure 1-4 As shown, it is a structural diagram of a clutch pedal 21 provided by an embodiment of the utility model, comprising: a mounting base 1, a slide groove 13 is provided on the mounting base 1, the slide groove 13 is provided with a first segment and a second segment, the first segment and the second segment have different directions, and the first segment and the second segment are connected at a smooth transition;

[0026] The pedal 21 assembly 2 is mounted on the mounting base 1, and the pedal 21 assembly 2 is provided with a connecting rod 231, and the connecting rod 231 is connected to the telescopic assembly 3;

[0027] The telescopic component 3 is installed on the mounting base 1. The telescopic component 3 is provided with a pulley 35. The telescopic component 3 is pressed by the pedal 21 component 2 so that the pulley 35 on the telescopic component 3 moves along the slide groove 13 to realize the segmented force feeling of the pedal 21 component 2 during the rotation process.

[0028] In the embodiment of the utility model, preferably, the clutch pedal 21 is mainly composed of a mounting base 1, a pedal 21 assembly 2 and a telescopic assembly 3. The pedal 21 assembly 2 and the telescopic assembly 3 are respectively mounted on the mounting base 1. The pedal 21 assembly 2 is provided with a connecting rod 231 connected to the telescopic assembly 3, so that after the user applies a certain stepping force to the pedal 21 assembly 2, the pedal 21 assembly 2 is driven by the telescopic assembly 3 and the pulley 35 moves along the groove wall direction of the slide groove 13. The slide groove 13 is provided with a first segment and a second segment that are connected to each other. The length direction of the first segment can be a horizontal direction. The connection between the first segment and the second segment is a turning point so that a certain angle is formed between the length direction of the second segment and the length direction of the first segment. The angle between the first segment and the second segment can be an obtuse angle greater than 90 degrees and less than 180 degrees so that the pedal 21 When the component 2 moves, a segmented force sense is generated. The telescopic component 3 is provided with a guide component 34 and can use the shape of the guide plate 341 on the guide component 34 to guide the pedal 21 component 2 to move, so that when the pedal 21 component 2 moves, a segmented force sense is generated by using the shape of the guide plate 341 and the slide groove 13. When the user adopts a relatively gentle pedaling force, the pedal 21 component 2 moves along the slide groove 13 and the horizontal section in the guide plate 341. At this time, there is no feedback from the pedal 21 and it remains unchanged. When the user suddenly increases the pedaling force, the pedal 21 component 2 moves along the slide groove 13 and the guide plate 341 and passes through the bend and changes the moving direction from horizontal to vertical. At this time, a segmented force sense is generated and the feedback force sense given to the user by the pedal 21 also appears segmented and simulates the segmented force sense of the real vehicle pedal 21, thereby enhancing the user experience.

[0029] In an example of the present invention, the present invention provides a mounting base 1 for mounting a pedal 21 assembly 2 and a telescopic assembly 3, a slide groove 13 is provided on the mounting base 1, the slide groove 13 is used to guide the pedal 21 assembly 2 to move along the groove wall of the slide groove 13, the pedal 21 assembly 2 is connected to the telescopic assembly 3 through a connecting rod 231, the telescopic assembly 3 can guide the telescopic assembly 3 to drive the pedal 21 assembly 2 to move through a guide plate 341 on a guide assembly 34, the telescopic assembly 3 is pressed by the pedal assembly 2 so that the pulley 35 on the telescopic assembly 3 moves along the slide groove 13 to realize the segmented force sense of the pedal assembly 2 during the rotation process, when the pedal 21 assembly 2 is stepped on with different forces, the telescopic assembly 3 drives the pedal 21 assembly 2 to move along the slide groove 13 so that the pedal 21 assembly 2 simulates the segmented force sense, thereby solving the problem that the segmented force sense of the pedal 21 of a real vehicle cannot be simulated, affecting the user experience.

[0030] like Figure 1-4As shown, as a preferred embodiment of the utility model, the mounting base 1 includes a first limiting groove 14, a first support plate 11 and a second support plate 12, the first support plate 11 and the second support plate 12 are connected by multiple groups of first connecting shafts, and multiple first mounting grooves are respectively arranged on the two opposite surfaces of the first support plate 11 and the second support plate 12, the first mounting groove is used to install the guide assembly 34, and the first support plate 11 and the second support plate 12 are used to support the pedal 21 assembly 2 and the telescopic assembly 3.

[0031] In an embodiment of the utility model, preferably, the mounting base 1 can be a semi-enclosed shell composed of a first support plate 11 and a second support plate 12, the pedal 21 assembly 2 and the telescopic assembly 3 can be installed in a cavity structure between the first support plate 11 and the second support plate 12, and the first support plate 11 and the second support plate 12 are connected by multiple groups of first connecting shafts, and first mounting grooves are respectively arranged on two opposite surfaces of the first support plate 11 and the second support plate 12, and the number and distribution of the first mounting grooves can be determined by the guide assembly 34.

[0032] like Figure 1-4 As shown, as a preferred embodiment of the utility model, two groups of the slide grooves 13 are provided and are respectively provided on two opposite surfaces of the first support plate 11 and the second support plate 12, and the slide grooves 13 are arc-shaped structures.

[0033] In the embodiment of the utility model, preferably, the first slide groove 13 and the second slide groove 13 in the slide groove 13 are respectively arranged on the first support plate 11 and the second support plate 12 , and are arranged at the same position and height to facilitate the movement of the guide pulley 35 .

[0034] like Figure 1-4 As shown, as a preferred embodiment of the utility model, two groups of first limiting grooves 14 are provided and are respectively located on the first support plate 11 and the second support plate 12, the first limiting grooves 14 are arranged in an arc shape and a first limiting area and a second limiting area are provided, and a positioning protrusion is provided at the connection between the first limiting area and the second limiting area, and the positioning protrusion is used to position the pedal 21 assembly 2.

[0035] In an embodiment of the utility model, preferably, two groups of first limiting grooves 14 are respectively located on the sides of the first support plate 11 and the second support plate 12, and the first limiting groove 14 can be an arc-shaped groove with a certain width, and the length direction of the first limiting groove 14 can intersect with the horizontal direction and have the same direction as the second segment of the slide groove 13 to facilitate the movement of the guide pedal 21 assembly 2, and a first limiting area and a second limiting area are set in the first limiting groove 14.

[0036] like Figure 1-4As shown, as a preferred embodiment of the present utility model, the pedal 21 assembly 2 includes a limiting rod 25, a pedal 21, an adjusting frame 23 and a connecting assembly 24. The limiting rod 25 cooperates with the first limiting groove 14 on the mounting base 1 to limit the moving stroke of the pedal 21 assembly 2 in the vertical direction. The pedal 21 is mounted on the top of the adjusting frame 23 through a connecting frame 22. The adjusting frame 23 is provided with two groups of first connecting plates 232 and a plurality of connecting rods 231. A plurality of mounting holes and second mounting grooves are provided on the two opposite surfaces of the two groups of first connecting plates 232. The mounting holes are used for mounting the connecting rods 231 and mounting parts, and the second mounting grooves are used for mounting the connecting assembly 24. The connecting rod 231 is used to connect with the telescopic assembly 3, and at most one group of connecting rods 231 is connected with the telescopic assembly 3 to facilitate adjusting the mounting position of the telescopic assembly 3. The mounting part is used to mount the connecting frame 22 on the first limiting groove 14 to connect the adjusting frame 23 with the mounting base 1. The connecting assembly 24 is used to connect with the mounting base 1.

[0037] In the embodiment of the present utility model, preferably, the pedal 21 assembly 2 is mainly composed of a limiting rod 25, a pedal 21, an adjusting frame 23 and a connecting assembly 24. The limiting rod 25 can be installed between the two groups of first connecting plates 232 of the adjusting frame 23, and the length of the limiting rod 25 is greater than the distance between the two groups of first connecting plates 232 to facilitate the installation of both ends of the limiting rod 25 on the first limiting groove 14 of the mounting base 1. The pedal 21 can be a rectangular plate with a certain thickness. A plurality of Loxitans can be provided on the pedal 21 to facilitate connection with the U-shaped connecting frame 22 through screws and connect the two ends of the U-shaped connecting frame 22 with the two groups of first connecting plates 232 on the adjusting frame 23 respectively and install them on the top. A plurality of mounting holes are respectively provided on the two groups of first connecting plates 232 for installing multiple groups of connecting rods 231, and at most one group of connecting rods 231 is connected with the telescopic assembly 3. The user can adjust the connection of the telescopic assembly 3 with the connecting rods 231 at different positions and different heights according to needs. The second mounting groove can be provided at the bottom of the first connecting plate 232 to facilitate the connection between the connecting assembly 24 and the telescopic assembly 3.

[0038] As Figure 1-4 As shown, as a preferred embodiment of the present utility model, the connecting assembly 24 includes a second connecting plate 241, a first connecting spring 242 and a third connecting plate 243. Connecting bumps are provided on both sides of the second connecting plate 241, and the connecting bumps are embedded in the second mounting grooves on the first connecting plate 232. One end of the first connecting spring 242 is mounted on the second connecting plate 241, and the other end is connected with the third connecting plate 243. The third connecting plate 243 is mounted on the bottom of the mounting base 1.

[0039] In the embodiment of the utility model, preferably, the connecting component 24 is provided with two ends of the second connecting spring 33 respectively connected to the second connecting plate 241 and the third connecting plate 243, the second connecting plate 241 is connected to the first connecting plate 232 through the connecting protrusions on both sides, and the third connecting plate 243 is installed on the mounting base 1, and the first connecting spring 242 is used to facilitate the movement of the guide pedal 21 component 2 in the vertical direction, and the connecting protrusion is used to connect with the second mounting groove to facilitate the connection with the adjustment frame 23 of the pedal 21 component 2.

[0040] like Figure 1-4 As shown, as a preferred embodiment of the utility model, the telescopic assembly 3 includes a first telescopic rod 31, an intermediate rod 32 and a second connecting spring 33, one end of the first telescopic rod 31 is installed on the connecting rod 231 on the pedal 21 assembly 2, the other end of the first telescopic rod 31 is connected to the top of the intermediate rod 32, the end of the intermediate rod 32 is connected to the second connecting shaft 36, both ends of the second connecting shaft 36 are respectively connected to the pulley 35 and embedded in the slide groove 13, the middle part of the second connecting shaft 36 is connected to one end of the second connecting spring 33, and the other end of the second connecting spring 33 is installed on the mounting base 1 through the third connecting shaft.

[0041] In the embodiment of the utility model, preferably, the telescopic assembly 3 is mainly composed of a first telescopic rod 31, an intermediate rod 32 and a second connecting spring 33. The first telescopic rod 31, the intermediate rod 32 and the second connecting spring 33 can form a Z shape after being fully connected. One end of the intermediate rod 32 is connected to a transverse second connecting shaft 36, and the second connecting spring 33 is installed on the second connecting shaft 36. The second connecting shaft 36 is mainly used to install the pulley 35 so that the pulley 35 can move on the guide plate 341. The third connecting shaft can be sleeved on the second connecting spring 33 and installed on the mounting base 1. The third connecting shaft can be a telescopic shaft that drives the rebound performance to support and guide the second connecting spring 33.

[0042] like Figure 1-4 As shown, as a preferred embodiment of the utility model, the guide assembly 34 is further provided with a limit plate 343 and a positioning rod 342, the limit plate 343 is used to limit the moving stroke of the telescopic assembly 3, the limit plate 343 is a bending structure, the limit plate 343 is provided with a plurality of mounting protrusions, the mounting protrusions are embedded in the first mounting groove so that the two sides of the limit plate 343 are respectively connected to the first support plate 11 and the second support plate 12, the positioning rod 342 is provided at the bending part of the limit plate 343, and the positioning rod 342 is used to position the telescopic assembly 3.

[0043] In the embodiment of the utility model, preferably, the guide assembly 34 is also provided with a limit plate 343 and a positioning rod 342. The limit plate 343 is installed between the first support plate 11 and the second support plate 12. The limit plate 343 can be an L-shaped bending plate. The strip-shaped hole arranged in the length direction of the limit plate 343 is also L-shaped to facilitate the movement of the guiding telescopic assembly 3. A plurality of mounting protrusions are arranged on both side edges of the limit plate 343 to facilitate its installation on the mounting base 1.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clutch pedal, characterized in that: The clutch pedal comprises: An installation base is provided with a slide groove, the slide groove is provided with a first section and a second section, the first section and the second section have different directions, and a connection between the first section and the second section has a smooth transition; A pedal assembly is mounted on the mounting base, the pedal assembly is provided with a connecting rod, and the connecting rod is connected to the telescopic assembly; The telescopic component is installed on the mounting base. The telescopic component is provided with a pulley. The telescopic component is pressed by the pedal component so that the pulley on the telescopic component moves along the slide groove to realize the segmented force feeling of the pedal component during the rotation process.

2. The clutch pedal according to claim 1, characterized in that: The mounting base includes a first limiting groove, a first support plate and a second support plate, the first support plate and the second support plate are connected by multiple groups of first connecting shafts, and multiple first mounting grooves are respectively arranged on two opposite surfaces of the first support plate and the second support plate, the first mounting groove is used to install the guide assembly, and the first support plate and the second support plate are used to support the pedal assembly and the telescopic assembly.

3. The clutch pedal according to claim 2, characterized in that: The slide grooves are provided in two groups and are respectively provided on two opposite surfaces of the first support plate and the second support plate, and the slide grooves are arc-shaped structures.

4. The clutch pedal according to claim 2, characterized in that: The first limiting grooves are arranged in two groups and are respectively located on the first support plate and the second support plate. The first limiting grooves are arranged in an arc shape and are provided with a first limiting area and a second limiting area. A positioning protrusion is arranged at the connection between the first limiting area and the second limiting area, and the positioning protrusion is used to position the pedal assembly.

5. The clutch pedal according to claim 4, characterized in that: The pedal assembly includes a limit rod, a pedal, an adjustment frame and a connecting assembly, the limit rod cooperates with the first limit groove on the mounting base to limit the movement stroke of the pedal assembly in the vertical direction, the pedal is installed on the top of the adjusting frame through the connecting frame, the adjusting frame is provided with two groups of first connecting plates and multiple connecting rods, and multiple mounting holes and second mounting grooves are provided on two opposite surfaces of the two groups of first connecting plates, the mounting holes are used to install the connecting rods and the mounting parts, and the second mounting grooves are used for installing the connecting assembly; the connecting rods are used to connect with the telescopic assembly, and at most one group of connecting rods is connected with the telescopic assembly to facilitate adjusting the installation position of the telescopic assembly, the mounting parts are used to install the connecting frame on the first limit groove to facilitate connecting the adjusting frame with the mounting base, and the connecting assembly is used to connect with the mounting base.

6. The clutch pedal according to claim 5, characterized in that: The connecting assembly includes a second connecting plate, a first connecting spring and a third connecting plate. Connecting protrusions are arranged on both sides of the second connecting plate. The connecting protrusions are embedded in the second mounting grooves on the first connecting plate. One end of the first connecting spring is installed on the second connecting plate and the other end is connected to the third connecting plate. The third connecting plate is installed at the bottom of the mounting base.

7. The clutch pedal according to claim 5, characterized in that: The telescopic assembly includes a first telescopic rod, an intermediate rod and a second connecting spring, one end of the first telescopic rod is installed on the connecting rod on the pedal assembly, the other end of the first telescopic rod is connected to the top of the intermediate rod, the end of the intermediate rod is connected to the second connecting shaft, both ends of the second connecting shaft are respectively connected to the pulley and embedded in the slide groove, the middle part of the second connecting shaft is connected to one end of the second connecting spring, and the other end of the second connecting spring is installed on the mounting base through the third connecting shaft.

8. The clutch pedal according to claim 2, characterized in that: The guide assembly is also provided with a limit plate and a positioning rod. The limit plate is used to limit the moving stroke of the telescopic assembly. The limit plate is a bending structure. The limit plate is provided with a plurality of mounting protrusions. The mounting protrusions are embedded in the first mounting groove so that the two sides of the limit plate are respectively connected to the first support plate and the second support plate. The positioning rod is provided at the bending part of the limit plate, and the positioning rod is used to position the telescopic assembly.

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