Circuit board transportation protection device

Abstract

The invention relates to a circuit board transportation protection device which comprises a cart, a W-shaped placing plate and a clamping protection mechanism, the cart is connected with the W-shaped placing plate used for placing a circuit board, and the W-shaped placing plate is provided with the clamping protection mechanism used for clamping and fixing the circuit board. The circuit board can be clamped and fixed in the front-back direction by rotating the C-shaped clamping plates on the front side and the rear side by 180 degrees in the direction close to the circuit board, so that the circuit board can be prevented from moving, being scratched or falling and being damaged in the transportation process, the transportation safety of the circuit board can be improved, the positions of the C-shaped clamping plates on the front side and the rear side are adjustable, and the transportation efficiency is improved. Therefore, circuit boards with different specifications and sizes can be clamped and fixed.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board transportation equipment, and in particular to a circuit board transportation protection device. Background Art

[0002] In the process of manufacturing circuit boards, large-area circuit boards are produced first. Usually, conductive paths are created on copper plates or other conductive materials using printing, photolithography, etching and other processes. Then, cutting equipment is used to cut the large-area circuit boards into multiple small circuit boards according to design requirements. With the development of science and technology, the production of circuit boards has become more and more complicated, with more and more processes. During the production process, it is inevitable that large-area circuit boards need to be transported from one machine to another. At present, trolleys are generally used for transportation.

[0003] After searching, the patent publication number is: CN208278133U, a mobile trolley for facilitating the transportation of circuit boards, including a frame, pulleys, partitions, baffles, and handrails. The frame includes a rectangular frame and steel bars vertically arranged on the rectangular frame. The upper surface of the frame is provided with two obliquely connected panels for placing circuit boards, and the panels are arranged on the surface of the frame through steel bars; the pulley is arranged at the bottom of the frame; the partition is vertically arranged on the surface of the panel; there are two baffles, which are respectively arranged at the outermost sides of the panel and perpendicular to the ground; the handrail is connected to the baffle.

[0004] Although the above patent can transport circuit boards, the above patent only supports the circuit boards by means of a panel tilted on the vehicle surface and a partition disposed on the panel, and does not provide a structure that can clamp and fix the circuit boards to protect the circuit boards. In this way, the circuit boards are easily moved and scratched or dropped and broken during transportation, and the safety is not high. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a circuit board transportation protection device which can clamp and fix the circuit board to prevent the circuit board from moving and being scratched or falling and being damaged during transportation.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a circuit board transportation protection device, comprising a trolley, a W-shaped placement plate and a clamping protection mechanism, the trolley is connected to a W-shaped placement plate for placing circuit boards, the W-shaped placement plate is provided with a clamping protection mechanism for clamping and fixing the circuit board, the clamping protection mechanism comprises a guide sleeve, a movable frame, a C-shaped clamping plate, a pushing assembly, a clamping assembly and a locking assembly, the left and right outer walls of the W-shaped placement plate are both slidably connected to two movable frames through guide sleeves, the front and rear movable frames are hinged on one side facing each other with a C-shaped clamping plate for clamping and fixing the circuit board, the left and right outer walls of the W-shaped placement plate are both provided with a pushing assembly for driving the front and rear movable frames away from and close to each other, the left and right outer walls of the W-shaped placement plate are both provided with a clamping assembly for locking the movable frame, and the top of the movable frame is provided with a locking assembly for locking the C-shaped clamping plate.

[0007] Preferably, the pushing assembly includes a turntable and a connecting rod, the left and right outer walls of the W-shaped placing plate are rotatably connected to the turntable, a torsion spring is connected between the turntable and the W-shaped placing plate, two connecting rods are hinged on the turntable, and the two connecting rods are respectively hingedly connected to the front and rear movable frames.

[0008] Preferably, the clamping assembly includes a ratchet bar, a fixed block, a pull rod A, a wedge-shaped block A and a spring A. The front upper side and the rear lower side of the left and right outer walls of the W-shaped placing plate are connected to the fixed blocks. The fixed blocks are slidably connected with a pull rod A that can move up and down. The pull rod A is connected to a wedge-shaped block A. A spring A is connected between the wedge-shaped block A and the fixed block. The left and right outer walls of the W-shaped placing plate are symmetrically slidably connected with ratchet bars up and down. The ratchet bars on the upper and lower sides are respectively connected to the movable frames on the front and rear sides, and the ratchet bars on the upper and lower sides are respectively in contact with the wedge-shaped blocks A on the upper and lower sides.

[0009] Preferably, the locking assembly includes a connecting block, a pull rod B, a wedge-shaped block B and a spring B. The top of the movable frame is connected to the connecting block. The connecting block is slidably connected to a pull rod B that can move up and down. The bottom end of the pull rod B is connected to a wedge-shaped block B. A spring B is connected between the wedge-shaped block B and the connecting block. A slot that cooperates with the wedge-shaped block B is opened on the top of the C-shaped clamp.

[0010] Preferably, the clamping protection mechanism further includes a C-shaped rubber plate, and the C-shaped rubber plate is connected to the sides of the front and rear C-shaped clamping plates facing away from each other.

[0011] Preferably, a driving mechanism is also included, which includes a connecting block, a pushing block, a pushing rod, a rotating shaft, a rotating block A and a rotating block B. The lower parts of the front and rear sides of the W-shaped placing plate are symmetrically connected with connecting blocks, the bottom of the connecting block is connected with a pushing block, the bottom of the pushing block is connected with a pushing rod, the lower hinge of the C-shaped clamping plate is connected with a rotating shaft, the upper part of the rotating shaft is connected with the rotating block A, the rotating block A is in contact with the pushing block, the lower part of the rotating shaft is connected with the rotating block B, the height of the rotating block B is lower than the height of the pushing block, and the rotating block B can be aligned with the pushing rod when it rotates.

[0012] Preferably, it also includes a rubber clamping plate and a fastening bolt. The lower part of the W-shaped placement plate is symmetrically and slidingly connected to two rubber clamping plates through a sliding groove. The rubber clamping plate is used to clamp and fix the circuit board. The front side of the rubber clamping plate is threadedly connected with a fastening bolt.

[0013] Preferably, a rubber pad is also included, and a placement groove is symmetrically opened at the bottom of the W-shaped placement plate, the rubber pad is clamped in the placement groove, and a sliding groove is opened on the rubber pad to slide with the rubber clamping plate.

[0014] Preferably, it also includes a mounting block, a roller, a covering cloth, a hanging ring and a hook. The mounting block is connected to the left side of the top of the W-shaped placement plate. The mounting block is rotatably connected to the roller. A covering cloth for covering the circuit board is wound around the roller. The covering cloth is connected to the hanging ring. The hook is connected to the right side of the top of the W-shaped placement plate.

[0015] Preferably, a volute spring is also included, and a volute spring is connected between the roller and the mounting block.

[0016] The beneficial effects of the present invention are: 1. By rotating the C-shaped clamps on the front and rear sides 180 degrees towards the direction close to the circuit board, the circuit board can be clamped and fixed in the front and rear positions, thereby preventing the circuit board from moving, scratching, falling or breaking during transportation, thereby improving the safety of circuit board transportation. The positions of the C-shaped clamps on the front and rear sides are adjustable, so that circuit boards of different specifications and sizes can be clamped and fixed.

[0017] 2. Through the cooperation of the connecting block, the pushing block, the pushing rod, the rotating shaft, the rotating block A and the rotating block B, the C-shaped clamping plates on the front and rear sides can be separated from each other and rotated to a state where they can clamp the circuit board, thereby reducing manual operations and improving work efficiency.

[0018] 3. The rubber clamping plate and the W-shaped placement plate can be used to clamp and fix the circuit board in the left and right directions, so that the circuit board can be fixed more firmly and the fixing and protection effect can be improved.

[0019] 4. The circuit board can be covered with a covering cloth to prevent dust from forming on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the cart and the W-shaped placement plate of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping protection mechanism of the present invention.

[0023] Figure 4 It is a partial three-dimensional structural schematic diagram of the clamping protection mechanism of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the present invention.

[0025] Figure 6 It is a schematic diagram of the installation of the locking assembly of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the locking assembly of the present invention.

[0027] Figure 8 It is a schematic diagram of the installation of the driving mechanism of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the driving mechanism of the present invention.

[0029] Fig.10 It is a schematic diagram of the partial three-dimensional structure of the present invention Figure 1 .

[0030] Fig.11 It is a schematic diagram of the partial three-dimensional structure of the present invention Figure 2 .

[0031] The marks in the accompanying drawings are: 1-trolley, 2-W-shaped placement plate, 3-clamping protection mechanism, 31-guide sleeve, 32-movable frame, 33-C-shaped clamping plate, 34-C-shaped rubber plate, 36-turntable, 37-connecting rod, 38-ratchet bar, 39-fixed block, 310-pull rod A, 311-wedge block A, 312-spring A, 313-connecting block, 314-pull rod B, 315-wedge block B, 316-spring B, 4-driving mechanism, 41-connecting block, 42-push block, 43-push rod, 44-rotating shaft, 45-rotating block A, 46-rotating block B, 5-rubber clamping plate, 6-fastening bolt, 7-rubber pad, 8-mounting block, 9-roller, 10-covering cloth, 11-hanging ring, 12-hook, 13-volute spring. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] Embodiment: A circuit board transportation protection device, see Figure 1-Figure 7As shown, it includes a trolley 1, a W-shaped placement plate 2 and a clamping protection mechanism 3. The trolley 1 is connected to a W-shaped placement plate 2 for placing a circuit board. The W-shaped placement plate 2 is provided with a clamping protection mechanism 3 for clamping and fixing the circuit board. The clamping protection mechanism 3 includes a guide sleeve 31, a movable frame 32, a C-shaped clamping plate 33, a pushing component, a clamping component and a locking component. The left and right outer walls of the W-shaped placement plate 2 are slidably connected to two movable frames 32 through the guide sleeve 31. The movable frame 32 is composed of a vertical plate and a sliding rod. The upper and lower sliding rods are fixedly connected to the vertical plate. The sliding rod is slidably connected in the guide sleeve 31. The front side of the vertical plate on the front movable frame 32 and the rear side The rear sides of the vertical plates on the movable frame 32 are hinged with C-shaped clamps 33, which are used to clamp and fix the circuit board. The left and right outer walls of the W-shaped placement plate 2 are provided with a pushing component for driving the front and rear movable frames 32 to move away from and approach each other. The pushing component includes a turntable 36 and a connecting rod 37. The left and right outer walls of the W-shaped placement plate 2 are rotatably connected with the turntable 36. A torsion spring is connected between the turntable 36 and the W-shaped placement plate 2. Two connecting rods 37 are hinged on the turntable 36. The two connecting rods 37 are respectively hingedly connected to the vertical plates on the front and rear movable frames 32. The left and right outer walls of the W-shaped placement plate 2 are provided with a turning plate 36 for locking the movable frame. The clamping assembly 32 includes a ratchet bar 38, a fixed block 39, a pull rod A310, a wedge-shaped block A311 and a spring A312. The front upper side and the rear lower side of the outer walls of the left and right sides of the W-shaped placement plate 2 are connected to the fixed blocks 39. The fixed blocks 39 are slidably connected to the pull rods A310 that can move up and down. The pull rods A310 are connected to the wedge-shaped block A311. The spring A312 is connected between the wedge-shaped block A311 and the fixed blocks 39. The outer walls of the left and right sides of the W-shaped placement plate 2 are symmetrically slidably connected to the ratchet bars 38. The ratchet bars 38 on the upper and lower sides are respectively connected to the vertical plates on the front and rear movable frames 32. The upper and lower sides are The ratchet bar 38 is in contact with the wedge-shaped blocks A311 on the upper and lower sides respectively. A locking assembly for locking the C-shaped clamp 33 is provided at the top of the vertical plate on the movable frame 32. The locking assembly includes a connecting block 313, a pull rod B314, a wedge-shaped block B315 and a spring B316. The top of the vertical plate on the movable frame 32 is connected to the connecting block 313. A pull rod B314 that can move up and down is slidably connected to the connecting block 313. The bottom end of the pull rod B314 is connected to the wedge-shaped block B315. A spring B316 is connected between the wedge-shaped block B315 and the connecting block 313. A slot cooperating with the wedge-shaped block B315 is opened at the top of the C-shaped clamp 33.

[0034] When a large-area circuit board needs to be transported, the front and rear C-shaped clamping plates 33 are first adjusted to a suitable position according to the size of the circuit board. When the positions of the front and rear C-shaped clamping plates 33 need to be adjusted, the turntable 36 is rotated, and the torsion spring is compressed accordingly. The turntable 36 rotates and the connecting rod 37 thereon pushes the front and rear movable frames 32 away from each other, thereby making the front and rear C-shaped clamping plates 33 move away from each other. In this way, large-area circuit boards of different specifications can be clamped and fixed. The front and rear movable frames 32 move away from each other, driving the upper and lower ratchet bars 38 to move away from each other, and the ratchet bars 38 move away from each other. When they are moving away from each other, the ratchet teeth on them push the wedge-shaped block A311 to move towards the fixed block 39, and the spring A312 is compressed accordingly. When one of the ratchet teeth on the ratchet bar 38 passes over the wedge-shaped block A311, the wedge-shaped block A311 moves towards the ratchet bar 38 under the resetting action of the spring A312, so that the ratchet bar 38 can be locked through the cooperation of the spring A312 and the wedge-shaped block A311, and then the movable frame 32 can be locked to prevent the front and rear two movable frames 32 from driving the front and rear two C-shaped clamps 33 to approach each other by themselves. After the positions of the front and rear C-shaped clamping plates 33 are adjusted, the large-area circuit board to be transported is placed on the W-shaped placement plate 2. The special structure of the W-shaped placement plate 2 can make the circuit board fit on the W-shaped placement plate 2 at an angle to prevent the circuit board from moving left and right. After the circuit board is placed, the C-shaped clamping plate 33 is rotated 180 degrees in the direction close to the circuit board to clamp and fix the circuit board on the W-shaped placement plate 2. In this way, the circuit board can be clamped and fixed in the front and rear directions by the front and rear C-shaped clamping plates 33, thereby preventing the circuit board from moving and being scratched or falling during transportation, thereby improving the safety of circuit board transportation; and when the C-shaped clamping plate 33 is rotated in the direction close to the circuit board, it can engage with the wedge-shaped clamping block B3 15, when the C-shaped clamping plate 33 rotates to contact the inclined surface at the bottom of the wedge-shaped clamping block B315, the C-shaped clamping plate 33 continues to rotate to push the inclined surface at the bottom of the wedge-shaped clamping block B315 to move up, and the spring B316 is compressed accordingly. When the C-shaped clamping plate 33 rotates 180 degrees in the direction close to the circuit board, the slot at the top of the C-shaped clamping plate 33 is aligned with the wedge-shaped clamping block B315. Under the resetting action of the spring B316, the wedge-shaped clamping block B315 moves down into the slot at the top of the C-shaped clamping plate 33, thereby locking the C-shaped clamping plate 33 to prevent the C-shaped clamping plate 33 from rotating in the direction away from the circuit board by itself, and the circuit board can be protected by the C-shaped rubber plate 34 to prevent the C-shaped clamping plate 33 from damaging the circuit board.When the circuit board is transported to the designated location and needs to be removed, pull rod B314 is pulled upward to move wedge-shaped block B315 upward to release the lock on C-shaped clamp 33, and then C-shaped clamp 33 is rotated 180 degrees away from the circuit board to release the lock on the circuit board. Then the circuit board can be removed. When the front and rear C-shaped clamps 33 are to be reset close to each other, pull rod A310 to move wedge-shaped block A311 to release the lock on ratchet bar 38. Under the reset action of torsion spring, turntable 36 is reversed and reset. The reverse rotation of turntable 36 pulls the front and rear movable frames 32 close to each other through connecting rod 37, thereby resetting the front and rear C-shaped clamps 33 close to each other.

[0035] See also Figure 1 , Figure 8 and Fig. 9 In the present invention, a driving mechanism 4 is also included, and the driving mechanism 4 includes a connecting block 41, a pushing block 42, a pushing rod 43, a rotating shaft 44, a rotating block A45 and a rotating block B46. The lower parts of the front and rear sides of the W-shaped placing plate 2 are symmetrically connected with connecting blocks 41, the bottom of the connecting block 41 is connected with a pushing block 42, the bottom of the pushing block 42 is connected with a pushing rod 43, the lower hinge of the C-shaped clamping plate 33 is connected with a rotating shaft 44, the upper part of the rotating shaft 44 is connected with a rotating block A45, the rotating block A45 is in contact with the pushing block 42, the lower part of the rotating shaft 44 is connected with a rotating block B46, the height of the rotating block B46 is lower than the height of the pushing block 42, and the rotating block B46 can be aligned with the pushing rod 43 when it rotates.

[0036] When the C-shaped clamps 33 on the front and rear sides are separated from each other, the rotating blocks A45 and the rotating blocks B46 on the front and rear sides are driven to move away from each other through the rotating shaft 44. Under the pushing action of the pushing block 42, the rotating block A45 is rotated ninety degrees, so that the rotating shaft 44 drives the C-shaped clamp 33 to rotate ninety degrees. The rotating shaft 44 rotates ninety degrees and drives the rotating block B46 to rotate ninety degrees and align with the push rod 43, so that the rotating block B46 continues to move and is pushed by the push rod 43, so that the rotating block B46 rotates ninety degrees again. The rotating block B46 rotates ninety degrees again, so that the rotating shaft 44 drives the C-shaped clamp 33 to rotate ninety degrees again, so that the C-shaped clamp 33 rotates one hundred and eighty degrees to a state where it can clamp the circuit board, and then the circuit board can be placed downward on the W-shaped placing plate 2. In this way, the C-shaped clamps 33 on the front and rear sides are separated from each other and the C-shaped clamp 33 can be rotated to a state where it can clamp the circuit board, thereby reducing manual operation and improving work efficiency.

[0037] See also Fig.10 In the present invention, a rubber clamping plate 5 and a fastening bolt 6 are also included. The lower part of the W-shaped placement plate 2 is symmetrically and slidingly connected with two rubber clamping plates 5 through a slide groove, and the front side of the rubber clamping plate 5 is threadedly connected with the fastening bolt 6.

[0038] After the circuit board is placed, loosen the fastening bolts 6 to release the lock on the rubber clamping plate 5, and then move the rubber clamping plate 5 toward the circuit board to clamp and fix the circuit board. In this way, the rubber clamping plate 5 and the W-shaped placement plate 2 cooperate to clamp and fix the circuit board in the left and right directions, so that the circuit board can be fixed more firmly and the fixing and protection effect is improved.

[0039] See also Fig.10 In the present invention, a rubber pad 7 is also included. A placement groove is symmetrically opened at the bottom of the W-shaped placement plate 2. The rubber pad 7 is clamped in the placement groove. A sliding groove is opened on the rubber pad 7 to slide with the rubber clamping plate 5. A groove is opened on the front side of the top of the rubber pad 7, and a lever is connected to the groove.

[0040] The rubber pad 7 can protect the circuit board and prevent the circuit board from being scratched by direct contact with the bottom of the W-shaped placement plate 2. When the rubber pad 7 is aged or scratched after long-term use and needs to be replaced, the rubber pad 7 can be taken out of the placement groove for replacement by pushing the lever upward.

[0041] See also Figure 10-11 In the present invention, it also includes a mounting block 8, a roller 9, a covering cloth 10, a hanging ring 11, a hook 12 and a spiral spring 13. Two mounting blocks 8 are symmetrically connected to the left side of the top of the W-shaped placement plate 2. A roller 9 is rotatably connected between the two mounting blocks 8. A covering cloth 10 is wound around the roller 9. The covering cloth 10 is connected to the hanging ring 11. The hook 12 is connected to the right side of the top of the W-shaped placement plate 2, and a spiral spring 13 is connected between the roller 9 and the mounting block 8.

[0042] Pull the hanging ring 11 to the right to pull out the covering cloth 10, and the roller 9 will rotate accordingly, and the spiral spring 13 will be compressed accordingly. Then the hanging ring 11 is hung on the hook 12, so that the covering cloth 10 can cover the circuit board to prevent dust from occurring when the circuit board is temporarily stored on the device. When the circuit board needs to be removed, remove the hanging ring 11 from the hook 12, and under the resetting action of the spiral spring 13, the roller 9 can rotate in the opposite direction to retract the covering cloth 10.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A circuit board transport protection device, comprising a trolley (1) and a W-shaped placement board (2), wherein the trolley (1) is connected to the W-shaped placement board (2) for placing the circuit board, characterized in that: The invention also comprises a clamping protection mechanism (3), wherein the W-shaped placement plate (2) is provided with a clamping protection mechanism (3) for clamping and fixing the circuit board, and the clamping protection mechanism (3) comprises a guide sleeve (31), a movable frame (32), a C-shaped clamping plate (33), a pushing component, a clamping component and a locking component, the left and right outer walls of the W-shaped placement plate (2) are both slidably connected to two movable frames (32) via the guide sleeve (31), the front and rear movable frames (32) are hingedly connected on their back-to-back sides with a C-shaped clamping plate (33) for clamping and fixing the circuit board, the left and right outer walls of the W-shaped placement plate (2) are both provided with a pushing component for driving the front and rear movable frames (32) to move away from and towards each other, the left and right outer walls of the W-shaped placement plate (2) are both provided with a clamping component for locking the movable frame (32), and the top of the movable frame (32) is provided with a locking component for locking the C-shaped clamping plate (33).

2. A circuit board transportation protection device according to claim 1, characterized in that: The pushing assembly comprises a rotating disk (36) and a connecting rod (37). The outer walls on both sides of the W-shaped placement plate (2) are rotatably connected to the rotating disk (36). A torsion spring is connected between the rotating disk (36) and the W-shaped placement plate (2). Two connecting rods (37) are hingedly connected to the rotating disk (36). The two connecting rods (37) are respectively hingedly connected to the front and rear movable frames (32).

3. A circuit board transportation protection device according to claim 2, characterized in that: The clamping assembly comprises a ratchet bar (38), a fixed block (39), a pull rod A (310), a wedge-shaped clamping block A (311) and a spring A (312); the front upper side and the rear lower side of the left and right outer walls of the W-shaped placement plate (2) are both connected to the fixed blocks (39); the fixed blocks (39) are slidably connected to the pull rod A (310) capable of moving up and down; the pull rod A (310) is connected to the wedge-shaped clamping block A (311); a spring A (312) is connected between the wedge-shaped clamping block A (311) and the fixed blocks (39); the left and right outer walls of the W-shaped placement plate (2) are both symmetrically slidably connected to the ratchet bars (38) in an upper and lower manner; the ratchet bars (38) on the upper and lower sides are respectively connected to the movable frames (32) on the front and rear sides; and the ratchet bars (38) on the upper and lower sides are respectively in contact with the wedge-shaped clamping blocks A (311) on the upper and lower sides.

4. A circuit board transportation protection device according to claim 3, characterized in that: The locking assembly comprises a connecting block (313), a pull rod B (314), a wedge-shaped clamping block B (315) and a spring B (316); the top of the movable frame (32) is connected to the connecting block (313); the pull rod B (314) capable of moving up and down is slidably connected to the connecting block (313); the bottom end of the pull rod B (314) is connected to the wedge-shaped clamping block B (315); a spring B (316) is connected between the wedge-shaped clamping block B (315) and the connecting block (313); and a clamping groove cooperating with the wedge-shaped clamping block B (315) is opened on the top of the C-shaped clamping plate (33).

5. A circuit board transportation protection device according to claim 4, characterized in that: The clamping protection mechanism (3) further comprises a C-shaped rubber plate (34), and the C-shaped rubber plate (34) is connected to the back-to-back sides of the C-shaped clamping plates (33) at the front and rear sides.

6. A circuit board transportation protection device according to claim 5, characterized in that: The invention also comprises a driving mechanism (4), which comprises a connecting block (41), a pushing block (42), a pushing rod (43), a rotating shaft (44), a rotating block A (45) and a rotating block B (46). The lower parts of the front and rear sides of the W-shaped placement plate (2) are both symmetrically connected to the connecting blocks (41), the bottom of the connecting block (41) is connected to the pushing block (42), the bottom of the pushing block (42) is connected to the pushing rod (43), the lower hinge of the C-shaped clamping plate (33) is connected to the rotating shaft (44), the upper part of the rotating shaft (44) is connected to the rotating block A (45), the rotating block A (45) is in contact with the pushing block (42), the lower part of the rotating shaft (44) is connected to the rotating block B (46), the height of the rotating block B (46) is lower than the height of the pushing block (42), and the rotating block B (46) can be rotated to align with the pushing rod (43).

7. A circuit board transportation protection device according to claim 6, characterized in that: It also includes a rubber clamping plate (5) and a fastening bolt (6). The lower part of the W-shaped placement plate (2) is symmetrically and slidingly connected to two rubber clamping plates (5) via a slide groove. The rubber clamping plate (5) is used to clamp and fix the circuit board. The front side of the rubber clamping plate (5) is threadedly connected to the fastening bolt (6).

8. A circuit board transportation protection device according to claim 7, characterized in that: It also includes a rubber pad (7), the bottom of the W-shaped placement plate (2) is provided with placement grooves symmetrically on the left and right, the rubber pad (7) is clamped in the placement groove, and the rubber pad (7) is provided with a sliding groove that slidably cooperates with the rubber clamping plate (5).

9. A circuit board transportation protection device according to claim 8, characterized in that: The invention also comprises a mounting block (8), a roller (9), a covering cloth (10), a hanging ring (11) and a hook (12); the mounting block (8) is connected to the left side of the top of the W-shaped placement plate (2); the mounting block (8) is rotatably connected to the roller (9); a covering cloth (10) for covering the circuit board is wound around the roller (9); the covering cloth (10) is connected to the hanging ring (11); and the hook (12) is connected to the right side of the top of the W-shaped placement plate (2).

10. A circuit board transportation protection device according to claim 9, characterized in that: It also includes a spiral spring (13), and the spiral spring (13) is connected between the rotating roller (9) and the mounting block (8).

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