A circuit board with surface anti-wear structure

Abstract

The present invention provides a circuit board with a surface anti-wear structure, which relates to the technical field of circuit board protection, including: a circuit board body; the bottom of the rotating support mechanism is fixedly connected to the circuit board body; the left and right ends of the protection net mechanism are fixedly connected to one group of the rotating support mechanisms; the left and right ends of the tightening mechanism are fixedly connected to one group of the rotating support mechanisms; the left and right ends of the fastening device are connected to the circuit board body, which solves the problems that the surface of the circuit board is prone to wear during transportation of traditional circuit boards; the installation requires tool-assisted fixing, which is troublesome; dust accumulates and affects the normal operation of the circuit board; when the circuit boards are transported, the present invention can effectively prevent the stacking of circuit boards from generating friction, and when installed, it can play a good dustproof and protective effect; the protection net can be further stretched and fixed to improve the protection performance; no tools are required for installation, and a single rotation can control two sets of screws to rotate, tighten and fix at the same time, which is simple to operate.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board protection, and in particular to a circuit board with a surface anti-wear structure. Background Art

[0002] As one of the basic components of electronic equipment, circuit boards are usually made into printed circuits, printed components or a combination of the two on insulating materials according to a predetermined design. Conductive patterns called printed circuits; conductive patterns on insulating substrates that provide electrical connections between components are called printed wiring; printed circuits and printed wiring are easily damaged, and wear and tear will affect the overall operation of the circuit board; circuit boards are generally stacked together during transportation. During transportation, friction is likely to occur between circuit boards, and traditional circuit boards lack spacing support structures. Circuit boards rub against each other and the surface of the circuit boards is prone to wear, affecting the operation of the circuit boards; circuit boards are generally fixed with screws during installation. The screw insertion and tightening process is cumbersome and requires tools to assist in fixing, making installation more troublesome; traditional circuit boards lack protective structures. After the circuit boards have been used for a period of time, a large amount of dust will accumulate on the surface of the circuit boards, affecting the normal operation of the circuit boards. Summary of the invention

[0003] In view of this, the present invention provides a circuit board with a surface anti-wear structure, which has a protective net mechanism. When the circuit board is transported, two sets of protective nets are respectively installed on the upper and lower surfaces of the circuit board, which can provide good protection for the circuit board and effectively prevent the circuit boards from being stacked and causing friction. When the circuit board is installed, the two sets of protective nets are located directly above the circuit board and will not hinder the installation of the circuit board. At the same time, they can also well prevent external dust or debris from falling onto the surface of the circuit board, and have good dustproof and protective effects; the tightening mechanism can stretch and fix the protective net, and can effectively improve the protective performance of the protective net; the rotating support mechanism can facilitate the rotation and limiting of the protective net mechanism, and the operation is simple and convenient; the fastening device, the installer can complete the tightening and fixing of the screw without tools, and a single rotation can control the two sets of screws to rotate, tighten and fix at the same time, the operation is simple, and the installation speed of the circuit board can be effectively improved.

[0004] The present invention provides a circuit board with a surface anti-wear structure, which specifically comprises: a circuit board body, a rotation support mechanism, a protection net mechanism, a tightening mechanism and a fastening device;

[0005] The main body of the circuit board is a rectangular parallelepiped structure as a whole, and circular holes are opened on the four corners of the main body of the circuit board; the number of the rotating support mechanisms is set to four groups, and the bottom of the rotating support mechanism is fixedly connected to the main body of the circuit board; the number of the protective net mechanisms is set to two groups, and the left and right ends of the protective net mechanisms are fixedly connected to one group of rotating support mechanisms; the number of tightening mechanisms is set to two groups, and the left and right ends of the tightening mechanisms are fixedly connected to one group of rotating support mechanisms, and one end of the protective net mechanism is connected to the tightening mechanism; the number of the fastening devices is set to two groups, and the left and right ends of the fastening devices are connected to the main body of the circuit board.

[0006] Optionally, the rotating support mechanism includes: a fixed column, a rotating component and a limiting component; the fixed column is a cylindrical structure with a hollow interior as a whole, and the fixed column is fixedly installed on the surface of the circuit board body; one end of the rotating component is fixedly connected to the surface of the fixed column, and the protective net mechanism and the tightening mechanism are rotatably connected to the circuit board body through the rotating component; the limiting component is fixedly installed on the surface of the rotating component.

[0007] Optionally, the rotating assembly also includes: a fixed connecting rod, a rotating plate and an elastic telescopic limit rod; one end of the fixed connecting rod is fixedly connected to the fixed column; the rotating plate is a rectangular structure with a groove inside, and a circular hole is provided on the surface of the rotating plate. The other end of the fixed connecting rod is inserted into the groove of the rotating plate, and the rotating plate is rotatably connected to the fixed connecting rod; one end of the elastic telescopic limit rod is fixedly connected to the fixed connecting rod, and the elastic telescopic limit rod is inserted into the circular hole to limit the rotation of the rotating plate.

[0008] Optionally, the limit assembly also includes: a pillar, a push rod, a baffle, a spring and an auxiliary baffle; the pillar is a cylindrical structure with a hollow interior, the pillar is fixedly mounted on the surface of the rotating plate, and the circular hole on one side of the pillar corresponds to the circular hole on the surface of the rotating plate; one end of the push rod is slidably inserted into the interior of the groove of the pillar, and the push rod can play a role in releasing the limit of the elastic telescopic limit rod; the baffle is fixedly mounted on the surface of the push rod; the spring is installed inside the pillar, and the spring can play a role in elastically supporting the push rod and the baffle; one end of the auxiliary baffle is fixedly connected to the push rod, and the auxiliary baffle can play a role in limiting the insertion distance of the push rod.

[0009] Optionally, the protective net mechanism includes: a support plate A, a winding rod and a partition; the support plate A is a rectangular structure with a hollow interior, and the left and right ends of the support plate A are fixedly connected to two groups of rotating components; the winding rod is rotatably installed inside the support plate A, and the winding rod can play the role of winding up the protective net; the partition is fixedly installed inside the support plate A.

[0010] Optionally, the protective net mechanism also includes: a protective net, an insertion rod, a driving tooth and a control tooth; one end of the protective net is slidably inserted into the interior of the support plate A and connected to the winding rod, and the protective net can provide auxiliary protection for the circuit board body; the surface of the insertion rod is fixedly connected to the other end of the protective net; the driving tooth is fixedly installed on the surface of the winding rod; the middle part of the control tooth is rotatably connected to the support plate A, and the surface of the control tooth is meshed with the driving tooth, and the driving tooth can control the rotation of the winding rod and wind up the protective net.

[0011] Optionally, the tightening mechanism includes: a support plate B, a sliding plate, a slot and a rotating screw; the support plate B is a rectangular structure as a whole, a square sliding groove is provided on the surface of the support plate B, and the left and right ends of the support plate B are fixedly connected to two sets of rotating components; the sliding plate is a rectangular structure with threaded holes on the surface, one end of the sliding plate is slidably inserted into the sliding interior of the support plate B, and the sliding plate can play the role of stretching the protective net; the slot is provided on the surface of the sliding plate, and the insertion rod is slidably inserted into the slot; one end of the rotating screw is rotatably inserted into the groove of the support plate B, and one end of the rotating screw is threadedly connected to the sliding plate, and the rotation of the rotating screw can play the role of controlling the sliding of the sliding plate.

[0012] Optionally, the fastening device includes: a connecting rod, a control handle and a tightening rotation assembly; the left and right ends of the connecting rod are rotated and inserted into the interior of the fixed column; the surface of the control handle is provided with anti-slip grooves, and the control handle is fixedly installed in the middle of the connecting rod; the tightening rotation assembly is installed inside the fixed column, and one end of the tightening rotation assembly is connected to the connecting rod.

[0013] Optionally, the tightening and rotating assembly also includes: a rotating rod, a driving rod, a bevel gear assembly and a tightening screw; the rotating rod is an overall cylindrical structure, a sliding groove is opened in the middle of the rotating rod, and the top of the rotating rod is rotatably connected to the fixed column; the driving rod is an overall hexagonal structure, and the driving rod is slidably inserted into the interior of the rotating rod sliding groove; one end of the bevel gear assembly is fixedly connected to the rotating rod, and the other end of the bevel gear assembly is fixedly connected to the connecting rod, and the connecting rod can control the rotating rod to rotate through the bevel gear assembly; the top of the tightening screw is fixedly connected to the driving rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention is internally provided with a protective net mechanism, and a stretchable protective net is internally provided with the protective net mechanism. Since two groups of protective nets are provided, when the circuit board is transported, the staff can respectively install the two groups of protective nets on the upper and lower surfaces of the circuit board through the rotating support mechanism, which can provide good protection for the circuit board, effectively prevent the stacking of the circuit boards from generating friction, and then cause the problem of wear of the circuit board. When the circuit board is installed, the bottom group of protective nets can be flipped to the top of the circuit board, and the two groups of protective nets are located above the circuit board, which will not hinder the installation of the circuit board. At the same time, the two groups of protective nets can also well prevent external dust or debris from falling onto the surface of the circuit board, and have good dustproof and protective effects.

[0016] In addition, by arranging a tightening mechanism inside the device, one end of the protective net mechanism is connected to the tightening mechanism, and the rotating screw inside the tightening mechanism rotates. The thread on the surface of the rotating screw can control the stretching of the protective net, which has a stretching and fixing effect on the protective net, and can effectively improve the protective performance of the protective net.

[0017] In addition, by arranging a rotating support mechanism inside the device and a limiting component inside the rotating support mechanism, when the protective net mechanism rotates, the staff can quickly release the limit of the protective net mechanism and the tightening mechanism through the limiting component, which facilitates the rotation of the protective net mechanism and is simple and convenient to operate.

[0018] In addition, by arranging a fastening device inside the device, and a control handle and a connecting rod inside the fastening device, the installer can complete the tightening and fixing of the screws without tools, and the installer can control the two sets of screws to rotate, tighten and fix at the same time by tightening the rotating component with a single rotation. The operation is simple and can effectively improve the installation speed of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture:

[0022] Figure 1 A schematic structural diagram of the main body of the present invention is shown as a side view of the main body;

[0023] Figure 2 A schematic diagram of the structure of the main body of the present invention is shown as seen from above;

[0024] Figure 3 A schematic structural diagram of the rotary support mechanism of the present invention is shown in an axial side view;

[0025] Figure 4A schematic structural diagram of a cross-section of a rotating assembly of the present invention is shown;

[0026] Figure 5 A schematic structural diagram of a cross-sectional view of a position limiting assembly of the present invention is shown;

[0027] Figure 6 A schematic diagram showing the structure of the protective net mechanism of the present invention is shown;

[0028] Figure 7 A schematic diagram showing the decomposed structure of the tightening mechanism of the present invention is shown;

[0029] Figure 8 A schematic structural diagram of the fastening device of the present invention from an axial side view is shown;

[0030] Fig. 9 A schematic structural diagram of a cross-section of the tightening and rotating assembly of the present invention is shown.

[0031] Reference numerals list

[0032] 1. Circuit board body; 2. Rotation support mechanism; 201. Fixed column; 202. Rotation assembly; 2021. Fixed connecting rod; 2022. Rotation plate; 2023. Elastic telescopic limit rod; 203. Limit assembly; 2031. Pillar; 2032. Push rod; 2033. Baffle; 2034. Spring; 2035. Auxiliary baffle; 3. Protection net mechanism; 301. Support plate A; 302. Winding rod; 303. Partition; 304, protective net; 305, plug rod; 306, driving tooth; 307, control tooth; 4, tightening mechanism; 401, support plate B; 402, sliding plate; 403, slot; 404, rotating screw; 5, fastening device; 501, connecting rod; 502, control handle; 503, tightening rotating assembly; 5031, rotating rod; 5032, driving rod; 5033, bevel gear assembly; 5034, tightening screw. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0034] Example 1: Please refer to Figures 1 to 9 :

[0035] The present invention proposes a circuit board with a surface anti-wear structure, comprising: a circuit board body 1, a rotation support mechanism 2, a protection net mechanism 3, a tightening mechanism 4 and a fastening device 5;

[0036] The circuit board body 1 is a rectangular parallelepiped structure as a whole, and circular holes are opened on the four corners of the circuit board body 1; the number of rotating support mechanisms 2 is set to four groups, and the bottom of the rotating support mechanism 2 is fixedly connected to the circuit board body 1; the number of protective net mechanisms 3 is set to two groups, and the left and right ends of the protective net mechanisms 3 are fixedly connected to one group of rotating support mechanisms 2; the number of tightening mechanisms 4 is set to two groups, and the left and right ends of the tightening mechanisms 4 are fixedly connected to one group of rotating support mechanisms 2, and one end of the protective net mechanism 3 is connected to the tightening mechanism 4; the number of fastening devices 5 is set to two groups, and the left and right ends of the fastening devices 5 are connected to the circuit board body 1.

[0037] like Figure 3 As shown, the rotating support mechanism 2 includes: a fixed column 201, a rotating component 202 and a limiting component 203; the fixed column 201 is a cylindrical structure with a hollow interior as a whole, and the fixed column 201 is fixedly installed on the surface of the circuit board body 1; one end of the rotating component 202 is fixedly connected to the surface of the fixed column 201, and the protective net mechanism 3 and the tightening mechanism 4 are rotatably connected to the circuit board body 1 through the rotating component 202; the limiting component 203 is fixedly installed on the surface of the rotating component 202.

[0038] like Figure 4 As shown, the rotating assembly 202 also includes: a fixed connecting rod 2021, a rotating plate 2022 and an elastic telescopic limiting rod 2023; one end of the fixed connecting rod 2021 is fixedly connected to the fixed column 201; the rotating plate 2022 is a rectangular structure with a groove opened inside, and a circular hole is opened on the surface of the rotating plate 2022. The other end of the fixed connecting rod 2021 is inserted into the groove of the rotating plate 2022, and the rotating plate 2022 is rotatably connected to the fixed connecting rod 2021; one end of the elastic telescopic limiting rod 2023 is fixedly connected to the fixed connecting rod 2021, and the elastic telescopic limiting rod 2023 is inserted into the circular hole to limit the rotation of the rotating plate 2022.

[0039] like Figure 5 As shown, the limit assembly 203 also includes: a pillar 2031, a push rod 2032, a baffle 2033, a spring 2034 and an auxiliary baffle rod 2035; the pillar 2031 is a cylindrical structure with a hollow interior, and the pillar 2031 is fixedly mounted on the surface of the rotating plate 2022, and the circular hole on one side of the pillar 2031 corresponds to the circular hole on the surface of the rotating plate 2022; one end of the push rod 2032 is slidably inserted into the groove of the pillar 2031, and the push rod 2032 can play a role in releasing the limit of the elastic telescopic limit rod 2023; the baffle 2033 is fixedly mounted on the surface of the push rod 2032; the spring 2034 is installed inside the pillar 2031, and the spring 2034 can play a role in elastically supporting the push rod 2032 and the baffle 2033; one end of the auxiliary baffle rod 2035 is fixedly connected to the push rod 2032, and the auxiliary baffle rod 2035 can play a role in limiting the insertion distance of the push rod 2032.

[0040] Embodiment 2:

[0041] Based on the first embodiment, Figure 6 As shown, the protective net mechanism 3 includes: a support plate A301, a winding rod 302 and a partition 303; the support plate A301 is a rectangular structure with a hollow interior, and the left and right ends of the support plate A301 are fixedly connected to two groups of rotating components 202; the winding rod 302 is rotatably installed inside the support plate A301, and the winding rod 302 can play the role of winding up the protective net 304; the partition 303 is fixedly installed inside the support plate A301.

[0042] like Figure 6 As shown, the protective net mechanism 3 also includes: a protective net 304, an insertion rod 305, a driving tooth 306 and a control tooth 307; one end of the protective net 304 is slidably inserted into the support plate A301 and connected to the winding rod 302, and the protective net 304 can play an auxiliary protective role for the circuit board body 1; the surface of the insertion rod 305 is fixedly connected to the other end of the protective net 304; the driving tooth 306 is fixedly installed on the surface of the winding rod 302; the middle part of the control tooth 307 is rotatably connected to the support plate A301, and the surface of the control tooth 307 is meshed with the driving tooth 306, and the driving tooth 306 can control the winding rod 302 to rotate and wind up the protective net 304.

[0043] like Figure 7 As shown, the tightening mechanism 4 includes: a support plate B401, a sliding plate 402, a slot 403 and a rotating screw 404; the support plate B401 is a rectangular structure as a whole, and a square sliding groove is provided on the surface of the support plate B401, and the left and right ends of the support plate B401 are fixedly connected to the two sets of rotating components 202; the sliding plate 402 is a rectangular structure with threaded holes on the surface, and one end of the sliding plate 402 is slidably inserted into the sliding interior of the support plate B401, and the sliding plate 402 can play a role in stretching the protective net 304; the slot 403 is provided on the surface of the sliding plate 402, and the insertion rod 305 is slidably inserted into the slot 403; one end of the rotating screw 404 is rotatably inserted into the groove of the support plate B401, and one end of the rotating screw 404 is threadedly connected to the sliding plate 402, and the rotation of the rotating screw 404 can play a role in controlling the sliding of the sliding plate 402.

[0044] Embodiment three:

[0045] Based on the second embodiment, Figure 8 As shown, the fastening device 5 includes: a connecting rod 501, a control handle 502 and a tightening rotation assembly 503; the left and right ends of the connecting rod 501 are rotated and inserted into the interior of the fixed column 201; the surface of the control handle 502 is provided with anti-slip grooves, and the control handle 502 is fixedly installed in the middle of the connecting rod 501; the tightening rotation assembly 503 is installed in the interior of the fixed column 201, and one end of the tightening rotation assembly 503 is connected to the connecting rod 501.

[0046] like Fig. 9 As shown, the tightening rotation assembly 503 also includes: a rotating rod 5031, a driving rod 5032, a bevel gear assembly 5033 and a tightening screw 5034; the rotating rod 5031 is an overall cylindrical structure, a sliding groove is opened in the middle of the rotating rod 5031, and the top of the rotating rod 5031 is rotatably connected to the fixed column 201; the driving rod 5032 is an overall hexagonal structure, and the driving rod 5032 is slidably inserted into the sliding groove of the rotating rod 5031; one end of the bevel gear assembly 5033 is fixedly connected to the rotating rod 5031, and the other end of the bevel gear assembly 5033 is fixedly connected to the connecting rod 501, and the connecting rod 501 can control the rotating rod 5031 to rotate through the bevel gear assembly 5033; the top of the tightening screw 5034 is fixedly connected to the driving rod 5032.

[0047] Specific usage and function of this embodiment: When transporting the circuit board, the staff can pull the plug rod 305, and the plug rod 305 drives the protective net 304 to slide from the inside of the support plate A301, and insert the plug rod 305 into the inside of the slot 403. The staff further controls the rotation of the screw rod 404. The thread on the surface of the screw rod 404 can control the sliding plate 402 and the plug rod 305 to slide toward the inside of the support plate B401. The protective net 304 at one end of the plug rod 305 is stretched by force, which plays an auxiliary protective effect on the circuit board body 1. Since the protective nets 304 are provided at both ends of the circuit board body 1, when the circuit board body 1 is stacked When together, the protective net 304 can play a good protective role and can effectively prevent wear and tear between the circuit board body 1; when the staff needs to install it inside the machine, the staff first needs to press the push rod 2032, and the push rod 2032 is forced to slide and pass through the support 2031 to be inserted into the circular hole of the rotating plate 2022. The auxiliary blocking rod 2035 at one end of the push rod 2032 can limit the insertion distance of the auxiliary blocking rod 2035. The elastic telescopic limit rod 2023 is squeezed by the push rod 2032 and contracts. The elastic telescopic limit rod 2023 is pulled out of the circular hole of the rotating plate 2022, releasing the rotation. The rotating plate 2022 is limited, and the staff can control the net protection mechanism 3 and the tightening mechanism 4 at the bottom to flip to the top of the circuit board body 1, and the rotating plate 2022 rotates, and the baffle 2033 is reinserted into another set of round holes of the rotating plate 2022 to form a limit support. The net protection mechanism 3 and the tightening mechanism 4 are flipped to the top, which will not affect the installation of the circuit board body 1. When the circuit board body 1 is installed, the staff can make the round hole at the bottom of the fixing column 201 correspond to the threaded connection hole inside the machine, and then control the connection rod 501 to rotate by controlling the handle 502. When the connection rod 501 rotates, The two sets of bevel gear assemblies 5033 at the left and right ends control the rotation of the rotating rod 5031. Since a hexagonal slot is provided in the middle of the rotating rod 5031, and the driving rod 5032 is slidably inserted into the slot of the rotating rod 5031, the rotating rod 5031 can control the driving rod 5032 and the tightening screw 5034 at the bottom to rotate at the same time. The two sets of tightening screws 5034 can be screwed into the machine threaded holes with one rotation, which effectively improves the installation speed of the circuit board body 1. After the installation is completed, the staff can also pull out the two sets of protective nets 304 at the same time, and the two sets of protective nets 304 can play a good dustproof and protective effect.

[0048] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A circuit board with a surface anti-wear structure, characterized in that: include: A circuit board body (1), a rotation support mechanism (2), a protective net mechanism (3), a tightening mechanism (4) and a fastening device (5); The circuit board body (1) is a rectangular parallelepiped structure as a whole, and circular holes are provided on the four corner surfaces of the circuit board body (1); the number of the rotating support mechanisms (2) is set to four groups, and the bottom of the rotating support mechanisms (2) is fixedly connected to the circuit board body (1); the number of the protective net mechanisms (3) is set to two groups, and the left and right ends of the protective net mechanisms (3) are fixedly connected to one of the rotating support mechanisms (2); the number of the tightening mechanisms (4) is set to two groups, and the left and right ends of the tightening mechanisms (4) are fixedly connected to one of the rotating support mechanisms (2), and one end of the protective net mechanism (3) is connected to the tightening mechanism (4); the number of the fastening devices (5) is set to two groups, and the left and right ends of the fastening devices (5) are connected to the circuit board body (1); The rotation support mechanism (2) comprises: a fixed column (201), a rotation component (202) and a limit component (203); the fixed column (201) is a cylindrical structure with a hollow interior, and the fixed column (201) is fixedly mounted on the surface of the circuit board body (1); one end of the rotation component (202) is fixedly connected to the surface of the fixed column (201); the protection net mechanism (3) and the tightening mechanism (4) are rotationally connected to the circuit board body (1) via the rotation component (202); and the limit component (203) is fixedly mounted on the surface of the rotation component (202); The rotating assembly (202) further comprises: a fixed connecting rod (2021), a rotating plate (2022) and an elastic telescopic limiting rod (2023); one end of the fixed connecting rod (2021) is fixedly connected to the fixed column (201); the rotating plate (2022) is a rectangular parallelepiped structure with a groove formed therein; a circular hole is formed on the surface of the rotating plate (2022); the other end of the fixed connecting rod (2021) is inserted into the groove of the rotating plate (2022); the rotating plate (2022) is rotatably connected to the fixed connecting rod (2021); one end of the elastic telescopic limiting rod (2023) is fixedly connected to the fixed connecting rod (2021); The position limiting assembly (203) further comprises: a pillar (2031), a push rod (2032), a baffle (2033), a spring (2034) and an auxiliary baffle rod (2035); the pillar (2031) is a cylindrical structure with a hollow interior, the pillar (2031) is fixedly mounted on the surface of the rotating plate (222), and a circular hole on one side of the pillar (2031) corresponds to a circular hole on the surface of the rotating plate (222); one end of the push rod (2032) is slidably inserted into the interior of the groove of the pillar (2031); the baffle (2033) is fixedly mounted on the surface of the push rod (2032); the spring (2034) is mounted inside the pillar (2031); and one end of the auxiliary baffle rod (2035) is fixedly connected to the push rod (2032).

2. A circuit board with a surface anti-wear structure according to claim 1, characterized in that: The protective net mechanism (3) comprises: a support plate A (301), a reeling rod (302) and a partition plate (303); the support plate A (301) is a rectangular parallelepiped structure with a hollow interior, and the left and right ends of the support plate A (301) are fixedly connected to two sets of rotating components (202); the reeling rod (302) is rotatably mounted inside the support plate A (301); and the partition plate (303) is fixedly mounted inside the support plate A (301).

3. A circuit board with a surface anti-wear structure according to claim 2, characterized in that: The protective net mechanism (3) further comprises: a protective net (304), an insertion rod (305), a driving tooth (306) and a control tooth (307); one end of the protective net (304) is slidably inserted into the interior of the support plate A (301) and connected to the reeling rod (302); the surface of the insertion rod (305) is fixedly connected to the other end of the protective net (304); the driving tooth (306) is fixedly mounted on the surface of the reeling rod (302); the middle portion of the control tooth (307) is rotatably connected to the support plate A (301), and the surface of the control tooth (307) is meshingly connected to the driving tooth (306).

4. A circuit board with a surface anti-wear structure according to claim 3, characterized in that: The tightening mechanism (4) comprises: a support plate B (401), a sliding plate (402), a slot (403) and a rotating screw (404); the support plate B (401) is a rectangular parallelepiped structure as a whole, a square sliding groove is provided on the surface of the support plate B (401), and the left and right ends of the support plate B (401) are fixedly connected to the two sets of rotating components (202); the sliding plate (402) is a rectangular parallelepiped structure with a threaded hole provided on the surface, and one end of the sliding plate (402) is slidably inserted into the sliding interior of the support plate B (401); the slot (403) is provided on the surface of the sliding plate (402), and the insertion rod (305) is slidably inserted into the slot (403); one end of the rotating screw (404) is rotatably inserted into the groove of the support plate B (401), and one end of the rotating screw (404) is threadedly connected to the sliding plate (402).

5. A circuit board with a surface anti-wear structure according to claim 4, characterized in that: The fastening device (5) comprises: a connecting rod (501), a control handle (502) and a tightening rotation assembly (503); the left and right ends of the connecting rod (501) are rotatably inserted into the interior of the fixed column (201); the surface of the control handle (502) is provided with anti-slip grooves, and the control handle (502) is fixedly mounted on the middle part of the connecting rod (501); the tightening rotation assembly (503) is mounted inside the fixed column (201), and one end of the tightening rotation assembly (503) is connected to the connecting rod (501).

6. The circuit board with a surface anti-wear structure according to claim 5, characterized in that: The tightening rotation assembly (503) further comprises: a rotating rod (5031), a driving rod (5032), a bevel gear assembly (5033) and a tightening screw (5034); the rotating rod (5031) is an overall cylindrical structure, a sliding groove is provided in the middle of the rotating rod (5031), and the top of the rotating rod (5031) is rotatably connected to the fixed column (201); the driving rod (5032) is an overall hexagonal structure, and the driving rod (5032) is slidably inserted into the sliding groove of the rotating rod (5031); one end of the bevel gear assembly (5033) is fixedly connected to the rotating rod (5031), and the other end of the bevel gear assembly (5033) is fixedly connected to the connecting rod (501); the top of the tightening screw (5034) is fixedly connected to the driving rod (5032).

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