Positioning and supporting device for computer security detection

Abstract

The invention relates to the technical field of positioning and supporting, and discloses a positioning and supporting device for computer safety detection, which comprises a supporting mechanism, the supporting mechanism comprises a base, the outer wall of the base is fixedly connected with a first servo motor, and the output end of the first servo motor penetrates through the base and is fixedly connected with a rotating shaft; the device comprises a base, the inner wall of the base is fixedly connected with a fixing shaft, the top of the base is fixedly connected with a first fixing rod, and the outer wall of the side, away from the base, of the first fixing rod is fixedly connected with a connecting block. The rolling wheels are driven by the second servo motor, so that the first rotating frame is attached to the outer wall of the supporting frame to rotate, then the first rotating frame drives the detector to detect the computer shell, the dead angle area in the detection process can be reduced, the computer shell does not need to be turned over, and the detection efficiency of the computer shell is improved.

Description

Technical Field

[0001] The invention relates to the technical field of positioning support, in particular to a positioning support device for computer security detection. Background Art

[0002] In today's digital age, the security detection and positioning of computer casings are of great significance. With the development of science and technology, computer casings not only protect internal hardware, but may also become the entrance to potential safety hazards. Computer casing security detection and positioning is designed to accurately determine the location of possible security vulnerabilities in the casing, and conduct timely casing security detection and positioning, which can help enterprises and individuals better protect computer systems, ensure data security and stable equipment operation.

[0003] A patent application with application number CN202220038372.3 discloses an environmentally friendly computer support and positioning device, including two legs and a support platform, the legs are fixedly connected to the support platform, a fixed clamping plate is fixedly arranged on the top of the support platform, a top groove is opened on the top of the support platform, a sliding hole is opened on the side wall of the top groove, an outer slide plate is in sliding contact with the sliding hole, and a sliding groove is opened on the side of the outer slide plate.

[0004] In summary, when inspecting the computer housing, since the computer housing contacts the fixed clamping plate and there is a large dead angle area on the side close to the support platform, the computer housing needs to be turned over repeatedly, which reduces the inspection efficiency of the computer housing.

[0005] To this end, we propose a positioning support device for computer security detection. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a positioning support device for computer security detection to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a positioning support device for computer security detection, comprising a support mechanism, the support mechanism comprising a base, an outer wall of the base is fixedly connected to a first servo motor, an output end of the first servo motor passes through the base and is fixedly connected to a rotating shaft, an inner wall of the base is fixedly connected to a fixed shaft, a top of the base is fixedly connected to a first fixing rod, an outer wall of the first fixing rod on a side away from the base is fixedly connected to a connecting block, an end of the connecting block away from the first fixing rod is fixedly connected to a first connecting rod, an outer wall of the first connecting rod on a side away from the connecting block is fixedly connected to a first fixing block, an end of the first fixing block away from the first connecting rod is fixedly connected to a support frame, a groove is provided on the outer wall of the support frame, a detection mechanism is arranged on the outside of the support frame, and also includes:

[0008] The clamping mechanism includes a second sliding block slidably connected to the rotating shaft, an inner wall of the second sliding block away from the rotating shaft is slidably connected to the fixed shaft, the inner wall of the second sliding block away from the fixed shaft is fixedly connected to the second hydraulic rod, the outer wall of the second sliding block is fixedly connected to the second connecting rod, one end of the second connecting rod away from the second sliding block is fixedly connected to the second hydraulic rod, the output end of the second hydraulic rod is fixedly connected to a fixed frame, the inner wall of the fixed frame away from the second hydraulic rod is slidably connected to the fixed shaft, the inner wall of the fixed frame is fixedly connected to a push rod, and an auxiliary component is provided at the output end of the push rod.

[0009] According to the above technical solution, the output end of the push rod is fixedly connected to the second fixed block, the outer surface of the second fixed block is provided with a through hole, a force block is arranged on the side of the second fixed block away from the push rod, and a connecting shaft is fixedly connected to the side of the force block close to the second fixed block. There are two connecting shafts, and the two connecting shafts are symmetrically arranged with the central axis of the force block as the center. The connecting shaft is used to improve the stability of the force block during movement.

[0010] According to the above technical solution, the end of the connecting shaft away from the force-bearing block passes through the second fixed block and is fixedly connected with a spring. The side of the spring close to the force-bearing block is fixedly connected to the second fixed block. The spring is movably sleeved on the outer surface of the connecting shaft, and the spring is used for resetting the force-bearing block.

[0011] According to the above technical solution, the auxiliary component includes a third sliding block slidably connected to the through hole, and the inner wall of the third sliding block on one side close to the force-bearing block is rotatably connected to the second rotating rod through a rotating shaft, and the end of the second rotating rod away from the third sliding block is rotatably connected to the force-bearing block, and the force-bearing block causes the third sliding block to slide along the through hole through the second rotating rod.

[0012] According to the above technical solution, the outer wall of the second fixed block is rotatably connected to the second rotating frame via a rotating shaft, the inner wall of the second rotating frame is rotatably connected to the third rotating rod via a rotating shaft, the third rotating rod is rotatably connected to the third sliding block on a side away from the second rotating frame, and the inner wall of the second rotating frame at one end away from the second fixed block is fixedly connected to a dual-axis motor, and when the third sliding block moves toward the side of the clamping block, the third sliding block flips the second rotating frame through the third rotating rod.

[0013] According to the above technical solution, the output end of the dual-axis motor passes through the second rotating frame and is fixedly connected to a clamping block, and the outer wall of the clamping block close to the force-bearing block is fixedly connected to a third drive motor, and the output end of the third drive motor passes through the clamping block and is fixedly connected to a drive roller, and the outer surface of the drive roller has a certain elasticity, which can assist the movement of the computer casing.

[0014] According to the above technical solution, the detection mechanism includes a first rotating frame, a second servo motor is fixedly connected to the outer wall of the first rotating frame, the output end of the second servo motor passes through the first rotating frame and is fixedly connected to a roller, the outer wall of the first rotating frame is fixedly connected to a second fixed rod, the inner wall of the second fixed rod is fixedly connected to a first hydraulic rod, the number of the first hydraulic rods is two, and the two first hydraulic rods are symmetrically arranged with the central axis of the first rotating frame as the center.

[0015] According to the above technical solution, the output end of the first hydraulic rod is fixedly connected to the first sliding block, the inner wall of the first sliding block on the side away from the first hydraulic rod is fixedly connected to the detector, the top outer wall of the first sliding block is rotatably connected to the first rotating rod via a rotating shaft, the end of the first rotating rod away from the first sliding block is rotatably connected to an auxiliary block via a rotating shaft, the outer wall of the auxiliary block on the side away from the first rotating rod is slidably connected to the inner wall of the first rotating frame, the number of the first rotating rods is two, the two first rotating rods are symmetrically arranged with the first sliding block as the center, and the first rotating rod is used to improve the stability of the first sliding block during movement.

[0016] Compared with the prior art, the present invention provides a positioning support device for computer security detection, which has the following beneficial effects:

[0017] 1. The present invention provides a positioning support device for computer security detection. When detecting a computer shell, the computer shell is first clamped and fixed by a clamping mechanism, and a roller is driven by a second servo motor to make the first rotating frame rotate in contact with the outer wall of the support frame, and then the first rotating frame drives the detector to detect the computer shell, thereby reducing the blind spot area during the detection process, eliminating the need to turn over the computer shell, and improving the detection efficiency of the computer shell.

[0018] 2. The present invention sets up a detection mechanism, and the second servo motor drives the roller to cause the first rotating frame to rotate along the outer wall of the support frame, and pushes the first sliding block toward the side of the computer housing through the first hydraulic rod. During the movement of the first sliding block toward the side of the computer housing, the first sliding block pulls the auxiliary block through the first rotating rod, thereby improving the stability of the first sliding block during movement, thereby improving the detection stability during computer housing detection.

[0019] 3. The present invention sets a clamping mechanism. The first servo motor moves the second sliding block toward one side of the detector through the rotating shaft. The distance between the auxiliary components on both sides is controlled by the second hydraulic rod, so that computer casings of different lengths can be clamped and fixed. The auxiliary components are pushed toward one side of the computer casing by the push rod, so that computer casings of different widths can be clamped and fixed, so that computer casings of different sizes can be detected by the detector.

[0020] 4. The present invention sets an auxiliary component. When the force block contacts the computer casing, the force block pushes the third sliding block to both sides through the second rotating rod. The third sliding block flips the second rotating frame through the third rotating rod. The clamping block is adjusted by a dual-axis motor. The computer casing is clamped and fixed by the clamping block. When it is necessary to detect the dead angle area of ​​the clamping area of ​​the computer casing, the dual-axis motor is used to make the driving roller contact with the computer casing. The third driving motor moves the computer casing through the driving roller, so that the dead angle area of ​​the clamping area of ​​the computer casing can be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the support mechanism structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the detection mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the clamping mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the clamping mechanism of the present invention;

[0026] Figure 6 It is a schematic diagram of the auxiliary component structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the auxiliary component structure of the present invention;

[0028] Figure 8 For the present invention Figure 1 Schematic diagram of the enlarged structure of A.

[0029] In the figure: 1. Support mechanism; 101. Base; 102. First servo motor; 103. Rotating shaft; 104. Fixed shaft; 105. First fixed rod; 106. Connecting block; 107. First connecting rod; 108. First fixed block; 109. Support frame; 110. Groove; 2. Detection mechanism; 201. First rotating frame; 202. Second servo motor; 203. Roller; 204. Second fixed rod; 205. First hydraulic rod; 206. First sliding block; 207. Detector; 208. First rotating rod; 209. Auxiliary Block; 3, clamping mechanism; 301, second sliding block; 302, second hydraulic rod; 303, second connecting rod; 304, fixed frame; 305, push rod; 306, second fixed block; 307, force block; 308, connecting shaft; 309, spring; 310, through hole; 311, auxiliary component; 3111, third sliding block; 3112, second rotating rod; 3113, second rotating frame; 3114, third rotating rod; 3115, dual-axis motor; 3116, clamping block; 3117, third driving motor; 3118, driving roller. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1: See Figure 1-Figure 3The present invention provides a technical solution: a positioning support device for computer security detection, comprising a support mechanism 1, the support mechanism 1 comprising a base 101, an outer wall of the base 101 is fixedly connected to a first servo motor 102, an output end of the first servo motor 102 runs through the base 101 and is fixedly connected to a rotating shaft 103, an inner wall of the base 101 is fixedly connected to a fixed shaft 104, a top of the base 101 is fixedly connected to a first fixed rod 105, an outer wall of the first fixed rod 105 away from the base 101 is fixedly connected to a connecting block 106, an end of the connecting block 106 away from the first fixed rod 105 is fixedly connected to a first connecting rod 107, an outer wall of the first connecting rod 107 away from the connecting block 106 is fixedly connected to a first fixed block 108, an end of the first fixed block 108 away from the first connecting rod 107 is fixedly connected to a support frame 109, a groove 110 is provided on the outer wall of the support frame 109, and a detection mechanism 2 is arranged on the outside of the support frame 109, and also includes:

[0034] The clamping mechanism 3 includes a second sliding block 301 slidably connected to the rotating shaft 103, an inner wall of the second sliding block 301 away from the rotating shaft 103 is slidably connected to the fixed shaft 104, a second hydraulic rod 302 is fixedly connected to the inner wall of the second sliding block 301 away from the fixed shaft 104, a second connecting rod 303 is fixedly connected to the outer wall of the second sliding block 301, an end of the second connecting rod 303 away from the second sliding block 301 is fixedly connected to the second hydraulic rod 302, an output end of the second hydraulic rod 302 is fixedly connected to a fixing frame 304, an inner wall of the fixing frame 304 away from the second hydraulic rod 302 is fixedly connected to the fixing frame 304, and a second hydraulic rod 302 is fixedly connected to the fixing frame 304. The fixed axis 104 is slidably connected, and the inner wall of the fixed frame 304 is fixedly connected with a push rod 305, and the output end of the push rod 305 is provided with an auxiliary component 311. When the computer shell is inspected, the computer shell is first clamped and fixed by the clamping mechanism 3, and then the second servo motor 202 drives the first rotating frame 201 to rotate in contact with the outer wall of the support frame 109 through the roller 203. The first rotating frame 201 drives the detector 207 to inspect the computer shell, which can reduce the blind spot area during the inspection process and there is no need to turn over the computer shell, thereby improving the inspection efficiency of the computer shell.

[0035] The detection mechanism 2 includes a first rotating frame 201, a second servo motor 202 is fixedly connected to the outer wall of the first rotating frame 201, the output end of the second servo motor 202 passes through the first rotating frame 201 and is fixedly connected to a roller 203, a second fixed rod 204 is fixedly connected to the outer wall of the first rotating frame 201, and a first hydraulic rod 205 is fixedly connected to the inner wall of the second fixed rod 204. There are two first hydraulic rods 205, and the two first hydraulic rods 205 are symmetrically arranged with the central axis of the first rotating frame 201 as the center.

[0036] The output end of the first hydraulic rod 205 is fixedly connected to the first sliding block 206, and the inner wall of the first sliding block 206 on the side away from the first hydraulic rod 205 is fixedly connected to the detector 207. The top outer wall of the first sliding block 206 is rotatably connected to the first rotating rod 208 through a rotating shaft. There are two first rotating rods 208, and the two first rotating rods 208 are symmetrically arranged with the first sliding block 206 as the center. The first rotating rod 208 is used to improve the stability of the first sliding block 206 during movement. The end of the first rotating rod 208 away from the first sliding block 206 is rotatably connected to an auxiliary block 209 through a rotating shaft. The outer wall of the auxiliary block 209 on the side away from the first rotating rod 208 is slidably connected to the inner wall of the first rotating frame 201.

[0037] The working principle of this embodiment is as follows: the second servo motor 202 drives the roller 203 to make the first rotating frame 201 rotate along the outer wall of the support frame 109. During this process, the first sliding block 206 is pushed toward one side of the computer housing by the first hydraulic rod 205. When the first sliding block 206 moves toward one side of the computer housing, the first sliding block 206 pulls the auxiliary block 209 with the help of the first rotating rod 208, so as to improve the stability of the first sliding block 206 during the movement, thereby improving the detection stability during the computer housing detection. At the same time, the first servo motor 102 moves the second sliding block 301 toward the detector 207 through the rotating shaft 103, and controls the distance between the auxiliary components 311 on both sides through the second hydraulic rod 302, so that computer housings of different lengths can be clamped and fixed, and the auxiliary component 311 is pushed toward one side of the computer housing by the push rod 305, so that computer housings of different widths can be clamped and fixed, so that computer housings of different sizes can be detected by the detector 207.

[0038] Example 2: Please refer to Figure 4-Figure 8 On the basis of the first embodiment, the present invention provides a technical solution: the output end of the push rod 305 is fixedly connected with a second fixed block 306, the outer surface of the second fixed block 306 is provided with a through hole 310, a force block 307 is arranged on the side of the second fixed block 306 away from the push rod 305, and a connecting shaft 308 is fixedly connected to the side of the force block 307 close to the second fixed block 306. There are two connecting shafts 308, and the two connecting shafts 308 are symmetrically arranged with the central axis of the force block 307 as the center, and the connecting shafts 308 are used to improve the stability of the force block 307 during the movement process.

[0039] The end of the connecting shaft 308 away from the force-bearing block 307 passes through the second fixed block 306 and is fixedly connected with a spring 309. The spring 309 is used for resetting the force-bearing block 307. The side of the spring 309 close to the force-bearing block 307 is fixedly connected to the second fixed block 306. The spring 309 is movably sleeved on the outer surface of the connecting shaft 308.

[0040] The auxiliary component 311 includes a third sliding block 3111 which is slidably connected to the through hole 310. The inner wall of the third sliding block 3111 on one side close to the force block 307 is rotatably connected to the second rotating rod 3112 via a rotating shaft. The force block 307 enables the third sliding block 3111 to slide along the through hole 310 via the second rotating rod 3112. The end of the second rotating rod 3112 away from the third sliding block 3111 is rotatably connected to the force block 307.

[0041] The outer wall of the second fixed block 306 is rotatably connected to the second rotating frame 3113 through a rotating shaft, and the inner wall of the second rotating frame 3113 is rotatably connected to the third rotating rod 3114 through a rotating shaft. The third rotating rod 3114 is rotatably connected to the third sliding block 3111 on the side away from the second rotating frame 3113, and the inner wall of the end of the second rotating frame 3113 away from the second fixed block 306 is fixedly connected to a dual-axis motor 3115. When the third sliding block 3111 moves toward the clamping block 3116, the third sliding block 3111 flips the second rotating frame 3113 through the third rotating rod 3114.

[0042] The output end of the dual-axis motor 3115 passes through the second rotating frame 3113 and is fixedly connected to a clamping block 3116. The outer wall of the clamping block 3116 close to the force block 307 is fixedly connected to a third drive motor 3117. The output end of the third drive motor 3117 passes through the clamping block 3116 and is fixedly connected to a drive roller 3118. The outer surface of the drive roller 3118 has a certain elasticity, which can assist the movement of the computer casing.

[0043] The working principle of this embodiment is as follows: when the force block 307 contacts the computer casing, the force block 307 pushes the third sliding block 3111 to both sides with the help of the second rotating rod 3112, and the third sliding block 3111 flips the second rotating frame 3113 through the third rotating rod 3114, and the clamping block 3116 is adjusted by the dual-axis motor 3115, and the computer casing is clamped and fixed by the clamping block 3116. When it is necessary to detect the dead angle area of ​​the clamping area of ​​the computer casing, the driving roller 3118 is brought into contact with the computer casing through the dual-axis motor 3115, and then the third driving motor 3117 drives the driving roller 3118 to move the computer casing, so that the dead angle area of ​​the clamping area of ​​the computer casing can be detected.

[0044] 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.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning support device for computer security detection, comprising a support mechanism (1), the support mechanism (1) comprising a base (101), the outer wall of the base (101) being fixedly connected to a first servo motor (102), the output end of the first servo motor (102) passing through the base (101) and being fixedly connected to a rotating shaft (103), the inner wall of the base (101) being fixedly connected to a fixed shaft (104), the top of the base (101) being fixedly connected to a first fixed rod (105), the first fixed rod (105) being away from the base (101) A connecting block (106) is fixedly connected to an outer wall on one side, and an end of the connecting block (106) away from the first fixing rod (105) is fixedly connected to a first connecting rod (107), and an outer wall of the first connecting rod (107) away from the connecting block (106) is fixedly connected to a first fixing block (108), and an end of the first fixing block (108) away from the first connecting rod (107) is fixedly connected to a support frame (109), and a groove (110) is provided on the outer wall of the support frame (109), and a detection mechanism (2) is arranged outside the support frame (109), characterized in that: Also included are: The clamping mechanism (3) comprises a second sliding block (301) slidably connected to the rotating shaft (103); the inner wall of the second sliding block (301) away from the rotating shaft (103) is slidably connected to the fixed shaft (104); the inner wall of the second sliding block (301) away from the fixed shaft (104) is fixedly connected to a second hydraulic rod (302); the outer wall of the second sliding block (301) is fixedly connected to a second connecting rod (303); one end of the second connecting rod (303) away from the second sliding block (301) is fixedly connected to the second hydraulic rod (302); the output end of the second hydraulic rod (302) is fixedly connected to a fixed frame (304); the inner wall of the fixed frame (304) away from the second hydraulic rod (302) is slidably connected to the fixed shaft (104); the inner wall of the fixed frame (304) is fixedly connected to a push rod (305); and the output end of the push rod (305) is provided with an auxiliary component (311).

2. A positioning support device for computer security detection according to claim 1, characterized in that: The output end of the push rod (305) is fixedly connected to a second fixed block (306), a through hole (310) is provided on the outer surface of the second fixed block (306), a force-bearing block (307) is provided on the side of the second fixed block (306) away from the push rod (305), and a connecting shaft (308) is fixedly connected to the side of the force-bearing block (307) close to the second fixed block (306).

3. A positioning support device for computer security detection according to claim 2, characterized in that: One end of the connecting shaft (308) away from the force-bearing block (307) passes through the second fixed block (306) and is fixedly connected with a spring (309). The side of the spring (309) close to the force-bearing block (307) is fixedly connected to the second fixed block (306), and the spring (309) is movably sleeved on the outer surface of the connecting shaft (308).

4. A positioning support device for computer security detection according to claim 2, characterized in that: The auxiliary component (311) comprises a third sliding block (3111) slidably connected to the through hole (310); an inner wall of one side of the third sliding block (3111) close to the force-bearing block (307) is rotatably connected to a second rotating rod (3112) via a rotating shaft; an end of the second rotating rod (3112) away from the third sliding block (3111) is rotatably connected to the force-bearing block (307).

5. A positioning support device for computer security detection according to claim 4, characterized in that: The outer wall of the second fixed block (306) is rotatably connected to the second rotating frame (3113) via a rotating shaft, the inner wall of the second rotating frame (3113) is rotatably connected to the third rotating rod (3114) via a rotating shaft, the side of the third rotating rod (3114) away from the second rotating frame (3113) is rotatably connected to the third sliding block (3111), and the inner wall of one end of the second rotating frame (3113) away from the second fixed block (306) is fixedly connected to a dual-axis motor (3115).

6. A positioning support device for computer security detection according to claim 5, characterized in that: The output end of the dual-axis motor (3115) passes through the second rotating frame (3113) and is fixedly connected to a clamping block (3116); a third driving motor (3117) is fixedly connected to an outer wall of the clamping block (3116) close to the force-bearing block (307); the output end of the third driving motor (3117) passes through the clamping block (3116) and is fixedly connected to a driving roller (3118).

7. A positioning support device for computer security detection according to claim 1, characterized in that: The detection mechanism (2) comprises a first rotating frame (201), a second servo motor (202) is fixedly connected to the outer wall of the first rotating frame (201), an output end of the second servo motor (202) passes through the first rotating frame (201) and is fixedly connected to a roller (203), a second fixed rod (204) is fixedly connected to the outer wall of the first rotating frame (201), and a first hydraulic rod (205) is fixedly connected to the inner wall of the second fixed rod (204).

8. A positioning support device for computer security detection according to claim 7, characterized in that: The output end of the first hydraulic rod (205) is fixedly connected to a first sliding block (206); an inner wall of the first sliding block (206) away from the first hydraulic rod (205) is fixedly connected to a detector (207); a top outer wall of the first sliding block (206) is rotatably connected to a first rotating rod (208) via a rotating shaft; an end of the first rotating rod (208) away from the first sliding block (206) is rotatably connected to an auxiliary block (209) via a rotating shaft; an outer wall of the auxiliary block (209) away from the first rotating rod (208) is slidably connected to an inner wall of the first rotating frame (201).

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