A multi-angle camera position adjusting device

Abstract

The present application relates to the technical field of subway monitoring, in particular to a camera multi-angle camera position adjusting device, which comprises: a mounting plate; a supporting mechanism connected with the mounting plate; a monitoring mechanism arranged outside the mounting plate and connected with the supporting mechanism; wherein the monitoring mechanism comprises: a connecting assembly connected with the supporting mechanism; a shooting assembly arranged outside the connecting assembly; a transmission assembly arranged between the supporting mechanism and the connecting assembly; and an adjusting assembly arranged between the transmission assembly and the shooting assembly. By arranging the monitoring mechanism, multi-camera shooting is realized, the direction and angle of the shooting assembly can be adjusted, the camera range of the device is effectively improved, the shooting blind area is reduced, and the comprehensiveness of monitoring is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of subway monitoring, and specifically relates to a multi-angle camera position adjusting device. BACKGROUND

[0002] The monitoring camera is a kind of semiconductor imaging device, which has the advantages of high sensitivity, strong light resistance, small distortion, small size, long service life, and shock resistance. The monitoring camera security and protection system is an intelligent operation system composed of four systems, i.e., a monitoring system server, a comprehensive storage system, a monitoring system command center, and an interface gateway.

[0003] In modern life, the camera is often used for monitoring in subway stations to protect the safety of people's lives and property, and to provide evidence for past events when needed. The existing camera takes a single camera as the monitoring subject, and cannot realize real-time shooting of various angles under the limitation of the fixing device, which reduces the coverage of the device and has a large visual blind area. Therefore, in view of the above status, it is urgent to develop a multi-angle camera position adjusting device to overcome the deficiencies in the current actual application. SUMMARY

[0004] The present application aims to provide a multi-angle camera position adjusting device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A multi-angle camera position adjusting device, comprising:

[0007] a mounting plate;

[0008] a support mechanism connected to the mounting plate;

[0009] a monitoring mechanism arranged outside the mounting plate and connected to the support mechanism, used to realize multi-angle shooting in cooperation with the support mechanism;

[0010] The monitoring mechanism comprises:

[0011] a connecting assembly connected to the support mechanism;

[0012] a shooting assembly arranged outside the connecting assembly, used to realize multi-position synchronous shooting in cooperation with the connecting assembly and the support mechanism;

[0013] a transmission assembly arranged between the support mechanism and the connecting assembly, used to realize horizontal rotation of the shooting assembly in cooperation with the connecting assembly;

[0014] An adjusting assembly is arranged between the transmission assembly and the shooting assembly, and is used for driving the shooting assembly to adjust the shooting angle.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] During the operation of the device, the mounting plate is installed on the outside of the building through the fixing bolts. On the one hand, the supporting mechanism can cooperate with the connecting assembly to realize the lifting of the shooting assembly. On the other hand, the connecting assembly cooperates with the transmission assembly to realize the lateral rotation of the shooting assembly. The adjusting assembly can cooperate with the connecting assembly to independently adjust each shooting assembly, and can adjust the shooting angle of the device, thereby improving the camera range and reducing the shooting blind area. In the prior art, the camera is the monitoring main body of a single camera. In the limiting of the fixed device, it cannot shoot each angle in real time according to the needs, which reduces the coverage of the device and the visual blind area. Through the setting of the monitoring mechanism, not only the multi-position shooting is realized, but also the direction and angle of the shooting assembly can be adjusted, the camera range of the device is effectively improved, the shooting blind area is reduced, and the comprehensiveness of the monitoring is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the multi-angle position adjusting device for the camera.

[0018] Figure 2 It is a structural schematic view of the multi-angle position adjusting device for the camera. Figure 1 It is an enlarged structural schematic view of the position A in the device.

[0019] Figure 3 It is a top view of the fixed rod in the multi-angle position adjusting device for the camera.

[0020] Figure 4 It is a structural schematic view of the sleeve rod in the multi-angle position adjusting device for the camera.

[0021] Figure 5 It is a structural schematic view of the multi-angle position adjusting device for the camera. Figure 1 It is an enlarged structural schematic view of the position B in the device.

[0022] In the figure: 1 - mounting plate, 2 - fixed column, 3 - lifting column, 4 - first telescopic part, 5 - support plate, 6 - protective cover, 7 - fixing frame, 8 - rotating rod, 9 - camera, 10 - threaded rod, 11 - sliding plate, 12 - connecting piece, 13 - connecting frame, 14 - driven rod, 15 - transmission rod, 16 - control rod, 17 - second telescopic part, 18 - connecting plate, 19 - driving part, 20 - fixing seat, 21 - driving rod, 22 - fixing rod, 23 - rotating disc, 24 - air guide groove, 25 - connecting groove, 26 - fixing tube, 27 - air pipe, 28 - lifting plate, 29 - third telescopic part, 30 - piston part, 31 - pressing block, 32 - connecting rod, 33 - sleeve rod, 34 - cavity, 35 - support tube, 36 - first positioning part, 37 - connecting tube, 38 - second positioning part. DETAILED DESCRIPTION

[0023] The technical solutions of the patent will be further described in detail below in combination with specific embodiments.

[0024] The embodiments of the patent will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the patent, and cannot be understood as a limitation of the patent.

[0025] Please refer to Figure 1 In an embodiment of the patent, a camera multi-angle position adjusting device comprises a mounting plate 1, a support mechanism connected with the mounting plate 1, a monitoring mechanism provided outside the mounting plate 1 and connected with the support mechanism, used to realize multi-angle shooting in cooperation with the support mechanism, wherein the monitoring mechanism comprises a connecting assembly connected with the support mechanism, a shooting assembly provided outside the connecting assembly, used to realize multi-position synchronous shooting in cooperation with the connecting assembly and the support mechanism, a transmission assembly provided between the support mechanism and the connecting assembly, used to realize horizontal rotation of the shooting assembly in cooperation with the connecting assembly, and an adjusting assembly provided between the transmission assembly and the shooting assembly, used to drive the shooting assembly to realize adjustment of the shooting angle in cooperation with the transmission assembly.

[0026] In the embodiment, when the device is in operation, the mounting plate 1 is installed on the outside of the building through the fixing bolts, on the one hand, the supporting mechanism can cooperate with the connecting assembly to realize the lifting of the shooting assembly, on the other hand, the connecting assembly cooperates with the transmission assembly to realize the lateral rotation of the shooting assembly, the adjusting assembly cooperates with the connecting assembly to realize the independent adjustment of each shooting assembly, the shooting angle of the device can be adjusted, and the shooting range is improved, and the shooting blind area is reduced.

[0027] In an embodiment of the application, the connecting assembly comprises: a lifting column 3 which is slidingly connected to the outside of the supporting mechanism; a driving member 19 which is arranged on the inside of the lifting column 3 and is fixedly connected with the supporting mechanism; and a driving rod 21 which is connected at one end with the output end of the driving member 19 and at the other end with the transmission assembly through a rotating disc 23, and is used for cooperating with the driving member 19 and the transmission assembly to realize the rotation of the lifting column 3.

[0028] In the embodiment, the driving member 19 is fixedly connected to the outside of the supporting mechanism, the driving member 19 is a driving motor, the output end of the driving member 19 is fixedly connected with the driving rod 21, and the other end of the driving rod 21 is fixedly connected with the rotating disc 23, the supporting mechanism can realize the lifting of the driving member 19, the driving member 19 realizes the lifting of the lifting column 3 through the driving rod 21 and the transmission assembly, the driving member 19 drives the rotation of the driving rod 21, the driving rod 21 can cooperate with the rotating disc 23 and the transmission assembly to realize the rotation of the lifting column 3 on the one hand, and can cooperate with the adjusting assembly to drive the shooting assembly on the other hand, so that the shooting assembly can comprehensively cover the surrounding environment.

[0029] In one embodiment of the present application, the shooting assembly comprises a support plate 5 fixedly connected with the lifting column 3, a protective cover 6 fixedly connected with the support plate 5, a fixed frame 7 provided between the protective cover 6 and the support plate 5 and fixedly connected with the support plate 5, a rotating rod 8 rotatably connected with the fixed frame 7, a camera 9 fixedly connected with the rotating rod 8, a threaded rod 10 rotatably provided inside the support plate 5 and connected with the adjusting assembly, and a sliding plate 11 threadedly connected with the threaded rod 10, slidingly connected with the support plate 5, and connected with the rotating rod 8 through a connecting piece 12 for driving the rotating rod 8 to rotate by cooperating with the rotation of the threaded rod 10 to adjust the angle of the camera 9.

[0030] In the embodiment, the support plate 5 is fixedly connected with the outer side of the lifting column 3 and is annularly and equidistantly distributed, the protective cover 6 is fixedly connected with the outer side of the bottom end of the support plate 5, the protective cover 6 is made of transparent material, the rotating rod 8 is fixedly connected with the shell wall of the camera 9, the connecting piece 12 comprises a gear fixedly connected with the outer side of the rotating rod 8 and a rack fixedly connected with the outer side of the sliding plate 11, the rack is meshingly connected with the gear, the adjusting assembly can drive the threaded rod 10 to rotate by cooperating with the connecting assembly, the threaded rod 10 drives the sliding plate 11 to slide along the plate wall of the support plate 5, the sliding plate 11 drives the rack to move, the rack cooperates with the gear to realize the rotation of the rotating rod 8, the rotating rod drives the camera 9 to rotate, and then the shooting angle is adjusted, the shooting assembly can realize multi-position shooting, the coverage of shooting is ensured, the flexible adjustment of the shooting angle can be realized by cooperating with the connecting assembly and the adjusting assembly, and the blind area of shooting is effectively reduced.

[0031] In one embodiment of the present application, please refer to Figure 1 and Figure 2 , the transmission assembly comprises a fixed seat 20 fixedly connected with the inner side of the lifting column 3, a fixed rod 22 provided inside the fixed seat 20, fixedly connected with the lifting column 3, and rotatably connected with a rotating disc 23, a lifting plate 28 slidingly connected with the fixed rod 22 and connected with the lifting column 3 through a third telescopic piece 29, a pressing block 31 symmetrically provided on both sides of the rotating disc 23, slidingly connected with the rod wall of the fixed rod 22, and connected with the lifting plate 28 through a connecting rod 32 for clamping and fixing the rotating disc 23 by cooperating with the lifting of the lifting plate 28, and a positioning assembly provided between the lifting plate 28 and the lifting column 3 and connected with the adjusting assembly for positioning the adjusting assembly and the lifting column 3 by cooperating with the movement of the lifting plate 28.

[0032] The fixed seat 20 is fixedly connected to the inner bottom of the lifting column 3, the driving rod 21 is rotationally connected with the fixed seat 20, the fixed rod 22 is arranged on the inner side of the fixed seat 20 and is fixedly connected with the lifting column 3 at the bottom end, the lifting plate 28 is slidably connected on the inner side of the fixed rod 22, the third telescopic piece 29 is fixedly connected between the bottom end of the lifting plate 28 and the lifting column 3, the third telescopic piece 29 is an electric telescopic rod, one end of the connecting rod 32 is rotationally connected with the lifting plate 28, and the other end is rotationally connected with the pressing block 31, the rotating disc 23 is rotationally connected on the inner side of the top end of the fixed rod 22, the rotating disc 23 can cooperate with the driving rod 21 to realize the lifting of the fixed rod 22, after the third telescopic piece 29 drives the lifting plate 28 to lift, the lifting plate 28 can drive the pressing block 31 to slide along the rod wall of the fixed rod 22 through the connecting rod 32, the two pressing blocks 31 relatively move to clamp and fix the rotating disc 23, when the pressing block 31 completes the clamping and fixing of the rotating disc 23, the rotating disc 23 cooperates with the pressing block 31 and the fixed rod 22 to realize the rotation of the lifting column 3, thereby realizing the transverse rotation of the shooting assembly, through the setting of the transmission assembly, the transverse rotation of the shooting assembly can be realized in cooperation with the connecting assembly, thereby adjusting the shooting direction and improving the comprehensiveness of shooting.

[0033] In one embodiment of the present application, please refer to Figure 1 、 Figure 2 and Figure 5 , the positioning assembly comprises: an air guide groove 24 arranged on the inner side of the column wall of the lifting column 3; a connecting pipe 37 arranged on the inner side of the air guide groove 24 and fixedly connected with the lifting column 3, and the inner side of the connecting pipe 37 is slidably connected with a second positioning piece 38 opposite to the supporting mechanism; a connecting groove 25 arranged on the inner side of the shell wall of the fixed seat 20 and connected with the adjusting assembly; a fixed pipe 26 arranged between the lifting plate 28 and the lifting column 3, one end of the fixed pipe 26 extends to the inner side of the air guide groove 24, and the other end of the fixed pipe 26 is slidably connected with a piston piece 30 connected with the lifting plate 28; and an air pipe 27 arranged on the inner side of the connecting groove 25 and fixedly connected with the fixed pipe 26, for guiding the flow of air.

[0034] In the embodiment, the fixed pipe 26 penetrates the fixed seat 20 and reaches the inner side of the air guide groove 24, the piston piece 30 comprises a first piston slidingly connected and arranged on the inner side of the fixed pipe 26 and a first push rod fixedly connected and arranged on the outer side of the first piston, the other end of the first push rod is fixedly connected with the lifting plate 28, the connecting pipe 37 is located on the inner side of the air guide groove 24 and is symmetrically arranged on the inner side of the column wall on both sides of the top end of the lifting column 3 and is fixedly connected with the lifting column 3, the second positioning piece 38 comprises a third piston slidingly connected and arranged on the inner side of the connecting pipe 37 and a second clamping block fixedly connected and arranged on the outer side of the third piston, in the process that the lifting plate 28 is released from the fixing of the rotating disc 23 under the driving of the third telescopic piece 29, the air located on the inner side of the fixed pipe 26 enters the inner side of the connecting groove 25 to complete the driving of the adjusting assembly on one hand and enters the inner side of the air guide groove 24 to drive the third piston located on the inner side of the connecting pipe 37 to move on the other hand, the third piston drives the second clamping block to move, the second clamping blocks on both sides realize the clamping and fixing of the supporting mechanism, thereby the stability between the lifting column 3 and the supporting mechanism can be maintained, and the stability of the equipment in the running after the adjustment is ensured.

[0035] In one embodiment of the present application, referring to Figure 1 、 Figure 3 and Figure 4 , the adjusting assembly comprises: a sleeve rod 33, the sleeve rod 33 is sleeved on the outer side of the driving rod 21 and is rotationally connected with the fixed seat 20; a cavity 34, the cavity 34 is arranged on the inner side of the sleeve rod 33; a supporting pipe 35, the supporting pipe 35 is arranged on the inner side of the cavity 34 and is fixedly connected with the sleeve rod 33, one end of the supporting pipe 35 reaches the inner side of the connecting groove 25, and the other end of the supporting pipe 35 is slidingly connected with a first positioning piece 36 on the inner side, which is used to realize the connection between the sleeve rod 33 and the driving rod 21; a driven assembly, the driven assembly is arranged between the sleeve rod 33 and the threaded rod 10, which is used to realize the rotation of the threaded rod 10 in cooperation with the sleeve rod 33.

[0036] In the embodiment, the top end of the sleeve rod 33 abuts against the inner wall of the fixed seat 20, a sealing ring is fixedly connected on the outer side of the rod wall at the connection position, the supporting pipe 35 is symmetrically arranged on the inner side of both ends of the sleeve rod 33, the first positioning piece 36 comprises a second piston slidingly connected and arranged on the inner side of the supporting pipe 35 and a first clamping block fixedly connected and arranged on the outer side of the second piston, the second piston located on the inner side of the supporting pipe 35 can be driven to move when the piston piece 30 moves, the second piston drives the second clamping block to clamp and fix the driving rod 21, so that the driving rod 21 rotates to drive the sleeve rod 33 to rotate, the sleeve rod 33 drives the threaded rod 10 to rotate through the driven assembly, thereby realizing the adjustment of the angle of the camera 9, through the arrangement of the adjusting assembly, the adjustment of the angle of the camera 9 can be realized in cooperation with the connecting assembly and the transmission assembly, the photographing range of the device is effectively improved, the blind area of photographing is reduced, and the comprehensiveness of monitoring is ensured.

[0037] In one embodiment of the present application, the driven assembly comprises: a control rod 16, which is rotatably connected with the fixed seat 20 and connected with the sleeve rod 33 through a gear member; a transmission rod 15, which is arranged outside the control rod 16, oppositely arranged with the control rod 16, and rotatably connected with the lifting column 3; a second telescopic member 17, which is arranged between the control rod 16 and the transmission rod 15, fixedly connected with the transmission rod 15, and used for cooperating with the control rod 16 to realize the rotation of the transmission rod 15; a connecting frame 13, which is fixedly connected with the lifting column 3; a driven rod 14, which is rotatably connected with the connecting frame 13, connected with the transmission rod 15 through a transmission member, and connected with the threaded rod 10, and used for cooperating with the transmission rod 15 to realize the rotation of the threaded rod 10.

[0038] In the embodiment, the gear member comprises a driving gear fixedly connected outside the sleeve rod 33 and a driven gear fixedly connected outside the control rod 16, the driving gear is meshingly connected with the driven gear, the second telescopic member 17 is fixedly connected outside the bottom end of the transmission rod 15, the second telescopic member 17 is an electric telescopic rod, the transmission member comprises pulleys fixedly connected outside the transmission rod 15 and the driven rod 14, the pulleys are connected through a belt, the driven rod 14 is meshingly connected with the threaded rod 10 through a bevel gear, the second telescopic member 17 is controlled according to requirements, the sleeve rod 33 can drive the control rod 16 to rotate, the control rod 16 cooperates with the second telescopic member 17 to drive the corresponding transmission rod 15 to rotate, the transmission rod 15 cooperates with the driven rod 14 to realize the rotation of the corresponding threaded rod 10, and then the angle of the camera 9 is adjusted.

[0039] In one embodiment of the present application, the supporting mechanism comprises: a fixed column 2, which is fixedly connected with the mounting plate 1; a first telescopic member 4, which is fixedly connected inside the fixed column 2 and connected with the connecting assembly through a connecting plate 18 at the other end, and used for cooperating with the fixed column 2 to realize the lifting of the connecting assembly.

[0040] In the embodiment, the first telescopic member 4 is connected with the inner wall of the top end of the fixed column 2, the first telescopic member 4 is an electric telescopic rod, the other end of the first telescopic member 4 is fixedly connected with the connecting plate 18, the other end of the connecting plate 18 is fixedly connected with the driving member 19 inside the connecting assembly, the first telescopic member 4 can realize the lifting of the connecting plate 18, the connecting plate 18 drives the driving member 19 to move, the driving member 19 cooperates with the rotating disc 23 arranged on the driving rod 21 to drive the fixed rod 22 to move, the fixed rod 22 drives the lifting column 3 to lift, and then the height of the camera 9 is adjusted.

[0041] The multi-angle camera position adjusting device, by setting the monitoring mechanism, not only realizes multi-position shooting, but also can adjust the direction and angle of the shooting assembly, effectively improves the shooting range of the device, reduces the shooting blind area, ensures the comprehensiveness of monitoring, by setting the shooting assembly, can realize multi-position shooting, ensures the coverage of shooting, and can realize flexible adjustment of the shooting angle with the connecting assembly and the adjusting assembly, effectively reduces the shooting blind area, by setting the transmission assembly, can realize the horizontal rotation of the shooting assembly with the connecting assembly, and then adjust the shooting direction, improve the comprehensiveness of shooting, by setting the positioning assembly, ensure the stability of the equipment after adjustment, by setting the adjusting assembly, can cooperate with the connecting assembly and the transmission assembly to adjust the angle of the camera 9, effectively improve the shooting range of the device, reduce the shooting blind area, ensure the comprehensiveness of monitoring.

[0042] The above is only the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the concept of the present application, can make several deformation and improvement, these should also be considered as the protection scope of the present application, these will not affect the effect and practicality of the present application.

Claims

1. A multi-angle camera position adjustment device, characterized in that, include: Mounting plate; A support mechanism is connected to the mounting plate; A monitoring mechanism is located on the outside of the mounting plate and connected to the support mechanism, used to cooperate with the support mechanism to achieve multi-angle shooting; The monitoring agency includes: A connecting component, which is connected to the support mechanism; A shooting component is arranged around the outside of the connecting component to cooperate with the connecting component and the support mechanism to achieve multi-camera synchronous shooting. A transmission component is disposed between the support mechanism and the connecting component, and is used to cooperate with the connecting component to realize the lateral rotation of the shooting component; An adjustment component is provided, which is located between the transmission component and the shooting component, and is used to cooperate with the transmission component to drive the shooting component to adjust the shooting angle; The connection component includes: A lifting column, which is slidably connected to the outside of the support mechanism; A driving component is disposed inside the lifting column and is fixedly connected to the support mechanism; A drive rod, one end of which is connected to the output end of the drive component, and the other end of which is connected to the transmission assembly via a turntable, is used to cooperate with the drive component and the transmission assembly to realize the rotation of the lifting column; The imaging component includes: A support plate, which is fixedly connected to the lifting column; The protective cover is fixedly connected to the support plate; A fixing frame is disposed between the protective cover and the support plate and is fixedly connected to the support plate. A rotating rod, which is rotatably connected to the fixed frame; The camera is fixedly connected to the rotating rod; A threaded rod is rotatably connected to the inner side of the support plate and connected to the adjustment assembly; The sliding plate is threadedly connected to the threaded rod, slidably connected to the support plate, and connected to the rotating rod through a connector. It is used to cooperate with the rotation of the threaded rod to drive the rotating rod to adjust the camera angle. The transmission assembly includes: The fixed base is fixedly connected to the inner side of the lifting column; A fixed rod is located inside the fixed base, fixedly connected to the lifting column, and rotatably connected to the turntable; A lifting plate, which is slidably connected to the fixed rod and connected to the lifting column via a third telescopic member; The pressure blocks are symmetrically arranged on both sides of the turntable, slidably connected to the wall of the fixed rod, and connected to the lifting plate through the connecting rod, and are used to clamp and fix the turntable in conjunction with the lifting of the lifting plate; A positioning component is provided between the lifting plate and the lifting column and is connected to the adjustment component, and is used to position the adjustment component and the lifting column in coordination with the movement of the lifting plate. The positioning component includes: An air guide channel is provided on the inner side of the lifting column wall; A connecting pipe is provided inside the air guide groove and is fixedly connected to the lifting column. A second positioning member opposite to the support mechanism is slidably connected to the inner side of the connecting pipe. A connecting groove is provided on the inner side of the fixed base housing wall and is connected to the adjusting assembly; A fixed tube is provided between the lifting plate and the lifting column, with one end leading to the inner side of the air guide groove and the other end having a piston connected to the lifting plate in a sliding connection on its inner side. A vent pipe is located inside the connecting groove and is fixedly connected to the fixed pipe to guide the airflow. The adjustment component includes: A sleeve rod, which is sleeved on the outside of the drive rod and rotatably connected to the fixed seat; A cavity, wherein the cavity is located inside the sleeve rod; A support tube is provided inside the cavity and is fixedly connected to the sleeve rod. One end of the support tube extends to the inside of the connecting groove, and the other end is slidably connected to a first positioning element, which is used to connect the sleeve rod and the drive rod. A driven component is disposed between the sleeve and the threaded rod, and is used to cooperate with the sleeve to realize the rotation of the threaded rod.

2. The camera multi-angle position adjustment device according to claim 1, characterized in that, The driven component includes: A control lever, which is rotatably connected to the fixed base and connected to the sleeve rod via a gear component; A transmission rod is located outside the control rod, opposite to the control rod, and rotatably connected to the lifting column; The second telescopic component is located between the control rod and the transmission rod, and is fixedly connected to the transmission rod to cooperate with the control rod to realize the rotation of the transmission rod; Connecting frame, which is fixedly connected to the lifting column; The driven rod is rotatably connected to the connecting frame, connected to the transmission rod via a transmission component, and connected to the threaded rod, and is used to cooperate with the transmission rod to realize the rotation of the threaded rod.

3. The camera multi-angle position adjustment device according to claim 1, characterized in that, The supporting structure includes: A fixed column, which is fixedly connected to the mounting plate; The first telescopic component is fixedly connected to the inner side of the fixed column, and its other end is connected to the connecting assembly through a connecting plate, so as to cooperate with the fixed column to realize the lifting and lowering of the connecting assembly.

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