Backlight source module convenient to overhaul and overhaul method

Abstract

The invention provides a backlight source module convenient to overhaul and an overhaul method, and relates to the technical field of backlight source modules.The backlight source module is fixedly installed on the side wall of a ratchet wheel, a pawl and the ratchet wheel are installed in a meshed mode, a piston rod is fixedly installed at the bottom of the pawl, and a spring is connected to the side wall of the piston rod in a sleeving mode and fixedly installed on the side wall of the piston rod; the end, away from the piston rod, of the spring is fixedly mounted on the mounting frame, a clamping belt is fixedly mounted on the side wall of the first connecting column, the side wall of the clamping belt is fixedly mounted on the first torsional spring, the end, away from the clamping belt, of the first torsional spring is fixedly mounted on the mounting frame, and a baffle is hinged to the side wall of the mounting frame. When the ratchet wheel rotates clockwise, the piston rod is extruded to move from bottom to top, the spring is compressed under stress, the piston rod drives the pawl to move from bottom to top, so that the pawl is meshed with the ratchet wheel, the clamping belt is turned clockwise to drive the first connecting column to rotate clockwise, and the first connecting column drives the ratchet wheel to rotate clockwise; and therefore, parts in the mounting frame can be conveniently taken out.

Description

Technical Field

[0001] The present invention belongs to the technical field of backlight source modules, and more specifically, particularly relates to a backlight source module that is easy to repair and a repair method. Background Art

[0002] The backlight is a light source located behind the liquid crystal display. Its luminous effect will directly affect the visual effect of the liquid crystal display module. The liquid crystal itself does not emit light. It displays graphics or characters as a result of its modulation of light. The development of the backlight can be traced back to World War II, when ultra-small tungsten filament lamps were used as backlight sources for aircraft instruments. This was the initial stage of the development of the backlight. After half a century of development, the backlight has now become an independent discipline in electronics and has gradually become a research and development hotspot.

[0003] However, the existing backlight module still has the following problems:

[0004] 1. When the existing backlight module is damaged, the entire module needs to be disassembled. Generally, the backlight module parts are glued together by gluing, which makes the disassembly process troublesome and difficult to operate. Improper operation may also cause secondary damage to the backlight module.

[0005] 2. When the existing backlight module is damaged internally, it is impossible to accurately extract the damaged part, and the backlight module can only be disassembled blindly, which increases the maintenance cost, prolongs the maintenance time, and reduces the work efficiency.

[0006] Therefore, in view of this, the existing structure and defects are studied and improved, and a backlight module and a maintenance method that are easy to repair are provided, in order to achieve a more practical purpose. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a backlight source module and a maintenance method that are easy to repair, so as to solve the above problems.

[0008] A backlight module that is easy to maintain, includes a mounting frame, a clamping mechanism is arranged inside the mounting frame, the clamping mechanism includes a ratchet, a first connecting column, a first torsion spring, a first mounting plate, a pawl, a piston rod and a spring, the first connecting column is fixedly mounted on the side wall of the ratchet, the first torsion spring is sleeved on the side wall of the first connecting column, the first mounting plate is fixedly mounted on the end of the first connecting column away from the ratchet, the pawl is meshed with the ratchet, the piston rod is fixedly mounted on the bottom of the pawl, the spring is sleeved on the side wall of the piston rod, the spring is fixedly mounted to the side wall of the piston rod, and the end of the spring away from the piston rod is fixedly mounted to the mounting frame.

[0009] Preferably, a clamping belt is fixedly mounted on the side wall of the first connecting column, the side wall of the clamping belt is fixedly mounted to the first torsion spring, and one end of the first torsion spring away from the clamping belt is fixedly mounted to the mounting frame.

[0010] Preferably, a baffle is hinged on a side wall of the installation frame, and a line groove is provided inside the installation frame.

[0011] Preferably, a mounting block is fixedly mounted on the side wall of the mounting frame, and a sliding block is slidably mounted inside the mounting block.

[0012] Preferably, bolts are threadedly mounted inside the mounting block, and a circuit board is slidably mounted on the top of the mounting frame.

[0013] Preferably, a sliding thin plate is slidably installed on the top of the circuit board, and the sliding thin plate is slidably installed inside the installation frame.

[0014] Preferably, a metal frame is fixedly mounted on the side wall of the installation frame, and a through groove is formed on the side wall of the metal frame.

[0015] Preferably, a sliding column is slidably installed inside the through groove, and a sliding plate is fixedly installed on the side wall of the sliding column.

[0016] Preferably, a clamping plate is rotatably mounted on the side wall of the sliding column, and a second mounting plate is fixedly mounted on one end of the sliding column away from the clamping plate.

[0017] In order to overcome the shortcomings of the prior art, the present invention also provides a method for repairing a backlight module that is easy to repair, comprising the following steps:

[0018] S1: Place the installation frame on the table, the piston rod will be squeezed and move from bottom to top, the spring will be compressed, the piston rod drives the pawl to move from bottom to top, so that the pawl engages with the ratchet, the clockwise flipping of the card belt drives the first connecting column to rotate clockwise, the first connecting column drives the ratchet to rotate clockwise, when the ratchet rotates clockwise, the pawl will drive the piston rod to continuously compress and stretch, the card belt is flipped clockwise 90 degrees, the pawl will clamp the ratchet to prevent counterclockwise rotation, and then the baffle is flipped counterclockwise to turn the installation frame into a semi-enclosed state;

[0019] S2: Rotate the bolt counterclockwise to create a distance between the bolt and the sliding block, adjust the length of the sliding block, and rotate the bolt counterclockwise again to squeeze the bolt onto the sliding block to fix it, and raise the installation frame to a certain height;

[0020] S3: Put the wires to be installed into the metal frame, press the second installation plate from both sides to the middle, the second installation plate drives the sliding column to move from both sides to the middle, the sliding column will slide along the through groove, the sliding column drives the sliding plate to move from both sides to the middle, the sliding column drives the clamping plate to move from both sides to the middle, the clamping plate clamps the wires, rotate the second installation plate counterclockwise, the second installation plate drives the sliding column and the sliding plate to rotate counterclockwise, and the sliding plate is clamped in the metal frame.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present invention, a ratchet, a first connecting column, a first torsion spring, a first mounting plate, a pawl, a piston rod and a spring are provided, and the mounting frame is placed on a desktop. The piston rod will be squeezed and move from bottom to top, the spring will be compressed by force, and the piston rod drives the pawl to move from bottom to top, so that the pawl is engaged with the ratchet. The clockwise flipping of the clamping belt drives the first connecting column to rotate clockwise, and the first connecting column drives the ratchet to rotate clockwise. When the ratchet rotates clockwise, the pawl will drive the piston rod to continuously compress and stretch, and the clamping belt will be flipped clockwise by 90 degrees. The pawl will clamp the ratchet to prevent it from rotating counterclockwise, and then the baffle will be flipped counterclockwise to change the mounting frame into a semi-enclosed state, thereby facilitating the removal of parts inside the mounting frame.

[0023] In the present invention, by providing a circuit groove, the circuit inside the module is first passed through the circuit groove, which can effectively protect the circuit from being scratched or damaged during the installation process, ensure the integrity and stability of the circuit, avoid malfunctions or safety hazards caused by damaged wires, improve the safety and reliability of installation, reduce subsequent problems that may be caused by improper installation operations, and improve the quality and service life of the entire backlight module.

[0024] In the present invention, by providing a mounting block, a sliding block and a bolt, the bolt is rotated counterclockwise to create a spacing between the bolt and the sliding block, the extended length of the sliding block is adjusted, and the bolt is rotated counterclockwise to squeeze the bolt onto the sliding block to fix the sliding block, and the mounting frame is raised to a certain height to form a better air circulation space under the module, which is beneficial to heat dissipation and prevents heat accumulation from affecting performance and life. The raised height also helps to better adapt to some special installation environments.

[0025] In the present invention, a circuit board and a sliding thin plate are provided, and the circuit board and the sliding thin plate are installed inside the installation frame by sliding. During maintenance, the sliding thin plate can play a certain isolation role to prevent accidental damage to the backlight module during the maintenance process. Different sliding thin plate areas can correspond to different module parts, so that maintenance personnel can more intuitively locate the specific position that needs maintenance and avoid blind disassembly. It can also reduce the impact of the external environment on the module during the maintenance process to a certain extent, and maintain a relatively stable maintenance environment.

[0026] In the present invention, a metal frame, a through groove, a sliding column, a sliding plate, a clamping plate and a second mounting plate are provided. The wires to be installed are placed in the metal frame, and the second mounting plate is pressed from both sides toward the middle. The second mounting plate drives the sliding column to move from both sides toward the middle. The sliding column will slide along the through groove. The sliding column drives the sliding plate to move from both sides toward the middle. The sliding column drives the clamping plate to move from both sides toward the middle. The clamping plate clamps the wires. The second mounting plate is rotated counterclockwise. The second mounting plate drives the sliding column and the sliding plate to rotate counterclockwise, and the sliding plate is clamped in the metal frame, thereby achieving the function of quickly installing the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the circuit slot structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the sliding thin plate of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the sliding block of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the card joint belt of the present invention;

[0032] Figure 6 The present invention Figure 5 The enlarged structural diagram at A in the middle;

[0033] Figure 7 It is a schematic diagram of the ratchet structure of the present invention;

[0034] Figure 8 It is a schematic diagram of the clamping plate structure of the present invention.

[0035] In the figure, the correspondence between the component names and the figure numbers is: 11, mounting frame; 12, ratchet; 13, first connecting column; 14, first torsion spring; 15, first mounting plate; 16, pawl; 17, piston rod; 18, spring; 19, clamping belt; 21, baffle; 22, circuit groove; 23, mounting block; 24, sliding block; 25, bolt; 26, circuit board; 27, sliding thin plate; 28, metal frame; 29, through groove; 31, sliding column; 32, sliding plate; 33, clamping plate; 34, second mounting plate. DETAILED DESCRIPTION

[0036] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] See also Figure 1-Figure 8 The present invention provides a backlight module that is easy to repair, including a mounting frame 11. A clamping mechanism is arranged inside the mounting frame 11. The clamping mechanism includes a ratchet 12, a first connecting column 13, a first torsion spring 14, a first mounting plate 15, a pawl 16, a piston rod 17 and a spring 18. The first connecting column 13 is fixedly mounted on the side wall of the ratchet 12. The first torsion spring 14 is sleeved on the side wall of the first connecting column 13. The first mounting plate 15 is fixedly mounted on one end of the first connecting column 13 away from the ratchet 12. The pawl 16 is meshed with the ratchet 12. The piston rod 17 is fixedly mounted on the bottom of the pawl 16. The spring 18 is sleeved on the side wall of the piston rod 17. The spring 18 is fixedly mounted on the side wall of the piston rod 17. The end of the spring 18 away from the piston rod 17 is fixedly mounted on the mounting frame 11. A clamping belt 19 is fixedly mounted on the side wall of the first connecting column 13. The side wall of the clamping belt 19 is connected to the first A torsion spring 14 is fixedly installed, and one end of the first torsion spring 14 away from the clamping belt 19 is fixedly installed with the installation frame 11. The side wall of the installation frame 11 is hinged with a baffle 21. When the installation frame 11 is placed on the desktop, the piston rod 17 will be squeezed and move from bottom to top, and the spring 18 is compressed. The piston rod 17 drives the pawl 16 to move from bottom to top, so that the pawl 16 engages with the ratchet 12, and the clamping belt 19 is flipped clockwise to drive the first connecting column 13 to rotate clockwise, and the first connecting column 13 drives the ratchet 12 to rotate clockwise. When the ratchet 12 rotates clockwise, the pawl 16 will drive the piston rod 17 to continuously compress and stretch, and the clamping belt 19 is flipped clockwise by ninety degrees. The pawl 16 will clamp the ratchet 12 to prevent counterclockwise rotation, and then the baffle 21 is flipped counterclockwise to change the installation frame 11 into a semi-enclosed state, thereby facilitating the removal of parts inside the installation frame 11.

[0038] A circuit groove 22 is provided inside the installation frame 11. Passing the circuit inside the module through the circuit groove 22 first can effectively protect the circuit from being scratched or damaged during the installation process, thereby ensuring the integrity and stability of the circuit, avoiding failures or safety hazards caused by damaged wires, improving the safety and reliability of the installation, reducing subsequent problems that may be caused by improper installation operations, and improving the quality and service life of the entire backlight module.

[0039] A mounting block 23 is fixedly installed on the side wall of the mounting frame 11, and a sliding block 24 is slidably installed inside the mounting block 23. A bolt 25 is threadedly installed inside the mounting block 23. The bolt 25 is rotated counterclockwise to create a distance between the bolt 25 and the sliding block 24, and the extended length of the sliding block 24 is adjusted. The bolt 25 is rotated counterclockwise to squeeze the bolt 25 onto the sliding block 24 to fix the sliding block 24, and the mounting frame 11 is raised to a certain height to form a better air circulation space under the module, which is conducive to heat dissipation and prevents heat accumulation from affecting performance and life. The raised height also helps to better adapt to some special installation environments.

[0040] A circuit board 26 is slidably installed on the top of the installation frame 11, and a sliding thin plate 27 is slidably installed on the top of the circuit board 26. The sliding thin plate 27 is slidably installed inside the installation frame 11. The circuit board 26 and the sliding thin plate 27 are installed inside the installation frame 11 by sliding. During maintenance, the sliding thin plate 27 can play a certain isolation role to prevent accidental damage to the backlight module during the maintenance process. Different areas of the sliding thin plate 27 can correspond to different module parts, so that maintenance personnel can more intuitively locate the specific position that needs maintenance and avoid blind disassembly. It can also reduce the impact of the external environment on the module during the maintenance process to a certain extent, and maintain a relatively stable maintenance environment.

[0041] The metal frame 28 is fixedly installed on the side wall of the installation frame 11, and a through groove 29 is opened on the side wall of the metal frame 28. A sliding column 31 is slidably installed inside the through groove 29, and a sliding plate 32 is fixedly installed on the side wall of the sliding column 31. A clamping plate 33 is rotatably installed on the side wall of the sliding column 31, and a second mounting plate 34 is fixedly installed on the end of the sliding column 31 away from the clamping plate 33. The wires to be installed are placed in the metal frame 28, and the second mounting plate 34 is pressed from both sides to the middle. The second mounting plate 34 drives the sliding column 31 to move from both sides to the middle. The sliding column 31 will slide along the inside of the through groove 29, and the sliding column 31 drives the sliding plate 32 to move from both sides to the middle. The sliding column 31 drives the clamping plate 33 to move from both sides to the middle. The clamping plate 33 clamps the wires, and the second mounting plate 34 is rotated counterclockwise. The second mounting plate 34 drives the sliding column 31 and the sliding plate 32 to rotate counterclockwise, and the sliding plate 32 is clamped in the metal frame 28, thereby achieving the function of quickly installing the wires.

[0042] In order to overcome the shortcomings of the prior art, the present invention also provides a method for repairing a backlight module that is easy to repair, comprising the following steps:

[0043] S1: Place the installation frame 11 on the desktop, the piston rod 17 will be squeezed and move from bottom to top, the spring 18 will be compressed, the piston rod 17 drives the pawl 16 to move from bottom to top, so that the pawl 16 is engaged with the ratchet 12, the clockwise flipping of the card belt 19 drives the first connecting column 13 to rotate clockwise, the first connecting column 13 drives the ratchet 12 to rotate clockwise, when the ratchet 12 rotates clockwise, the pawl 16 will drive the piston rod 17 to continuously compress and stretch, the card belt 19 is flipped clockwise by 90 degrees, the pawl 16 will clamp the ratchet 12 to prevent counterclockwise rotation, and then the baffle 21 is flipped counterclockwise to turn the installation frame 11 into a semi-enclosed state;

[0044] S2: Rotate the bolt 25 counterclockwise to create a distance between the bolt 25 and the sliding block 24, adjust the extended length of the sliding block 24, and then rotate the bolt 25 counterclockwise to squeeze the bolt 25 onto the sliding block 24 to fix the sliding block 24, thereby raising the installation frame 11 to a certain height;

[0045] S3: Place the wires to be installed into the metal frame 28, press the second mounting plate 34 from both sides toward the middle, the second mounting plate 34 drives the sliding column 31 to move from both sides toward the middle, the sliding column 31 will slide along the through groove 29, the sliding column 31 drives the sliding plate 32 to move from both sides toward the middle, the sliding column 31 drives the clamping plate 33 to move from both sides toward the middle, the clamping plate 33 clamps the wires, rotate the second mounting plate 34 counterclockwise, the second mounting plate 34 drives the sliding column 31 and the sliding plate 32 to rotate counterclockwise, and the sliding plate 32 is clamped in the metal frame 28.

[0046] Working principle:

[0047] The first step is to place the installation frame 11 on the desktop when the backlight module needs to be repaired. The piston rod 17 will be squeezed and move from bottom to top, the spring 18 will be compressed, and the piston rod 17 will drive the pawl 16 to move from bottom to top, so that the pawl 16 is engaged with the ratchet 12, and the clockwise flipping of the clamping belt 19 drives the first connecting column 13 to rotate clockwise, and the first connecting column 13 drives the ratchet 12 to rotate clockwise. When the ratchet 12 rotates clockwise, the pawl 16 will drive the piston rod 17 to continuously compress and stretch, and the clamping belt 19 will be flipped ninety degrees clockwise, and the pawl 16 will clamp the ratchet 12 to prevent counterclockwise rotation, and then the baffle 21 will be flipped counterclockwise to change the installation frame 11 into a semi-enclosed state, thereby facilitating the removal of the parts inside the installation frame 11.

[0048] In the second step, the circuits inside the module are passed through the circuit groove 22 first, which can effectively protect the circuits from being scratched or damaged during the installation process, ensure the integrity and stability of the circuit, avoid failures or safety hazards caused by damaged wires, improve the safety and reliability of the installation, reduce subsequent problems that may be caused by improper installation operations, and improve the quality and service life of the entire backlight module.

[0049] In the third step, the circuit board 26 and the sliding plate 27 are installed inside the installation frame 11 by sliding. During maintenance, the sliding plate 27 can play a certain isolation role to prevent accidental damage to the backlight module during the maintenance process. Different sliding plate 27 areas can correspond to different module parts, allowing maintenance personnel to more intuitively locate the specific position that needs maintenance and avoid blind disassembly. It can also reduce the impact of the external environment on the module during the maintenance process to a certain extent, and maintain a relatively stable maintenance environment.

[0050] The fourth step is to rotate the bolt 25 counterclockwise to create a gap between the bolt 25 and the sliding block 24, adjust the extended length of the sliding block 24, and rotate the bolt 25 counterclockwise to squeeze the bolt 25 onto the sliding block 24 to fix the sliding block 24, and raise the installation frame 11 to a certain height to form a better air circulation space under the module, which is conducive to heat dissipation and prevents heat accumulation from affecting performance and life. The raised height also helps to better adapt to some special installation environments.

[0051] The fifth step is to put the wires to be installed into the metal frame 28, press the second mounting plate 34 from both sides toward the middle, the second mounting plate 34 drives the sliding column 31 to move from both sides toward the middle, the sliding column 31 will slide along the through groove 29, the sliding column 31 drives the sliding plate 32 to move from both sides toward the middle, the sliding column 31 drives the clamping plate 33 to move from both sides toward the middle, the clamping plate 33 clamps the wires, rotate the second mounting plate 34 counterclockwise, the second mounting plate 34 drives the sliding column 31 and the sliding plate 32 to rotate counterclockwise, and clamps the sliding plate 32 inside the metal frame 28, thereby achieving the function of quickly installing the wires.

[0052] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A backlight module that is easy to repair, comprising a mounting frame (11), characterized in that: A clamping mechanism is arranged inside the installation frame (11), and the clamping mechanism comprises a ratchet (12), a first connecting column (13), a first torsion spring (14), a first mounting plate (15), a pawl (16), a piston rod (17) and a spring (18), wherein the first connecting column (13) is fixedly mounted on the side wall of the ratchet (12), the first torsion spring (14) is sleeved on the side wall of the first connecting column (13), the first mounting plate (15) is fixedly mounted on an end of the first connecting column (13) away from the ratchet (12), the pawl (16) is meshed with the ratchet (12), the piston rod (17) is fixedly mounted on the bottom of the pawl (16), the spring (18) is sleeved on the side wall of the piston rod (17), the spring (18) is fixedly mounted on the side wall of the piston rod (17), and the end of the spring (18) away from the piston rod (17) is fixedly mounted on the installation frame (11).

2. A backlight module that is easy to repair as claimed in claim 1, characterized in that: A clamping belt (19) is fixedly mounted on the side wall of the first connecting column (13); The side wall of the clamping belt (19) is fixedly mounted to the first torsion spring (14), and one end of the first torsion spring (14) away from the clamping belt (19) is fixedly mounted to the mounting frame (11).

3. A backlight module that is easy to repair as claimed in claim 1, characterized in that: The side wall of the installation frame (11) is hinged with a baffle (21); Wherein, a line groove (22) is provided inside the installation frame (11).

4. A backlight module that is easy to repair as claimed in claim 3, characterized in that: A mounting block (23) is fixedly mounted on the side wall of the mounting frame (11); Wherein, a sliding block (24) is slidably installed inside the installation block (23).

5. A backlight module that is easy to repair as claimed in claim 4, characterized in that: The mounting block (23) is internally threaded with a bolt (25); Wherein, a circuit board (26) is slidably mounted on the top of the installation frame (11).

6. A backlight module that is easy to repair as claimed in claim 5, characterized in that: A sliding thin plate (27) is slidably mounted on the top of the circuit board (26); Wherein, the sliding thin plate (27) is slidably installed inside the installation frame (11).

7. A backlight module that is easy to repair as claimed in claim 6, characterized in that: A metal frame (28) is fixedly mounted on the side wall of the installation frame (11); Wherein, a through groove (29) is provided on the side wall of the metal frame (28).

8. A backlight module that is easy to repair as claimed in claim 7, characterized in that: A sliding column (31) is slidably installed inside the through groove (29); Wherein, a sliding plate (32) is fixedly mounted on the side wall of the sliding column (31).

9. A backlight module that is easy to repair as claimed in claim 8, characterized in that: A clamping plate (33) is rotatably mounted on the side wall of the sliding column (31); Wherein, a second mounting plate (34) is fixedly mounted on one end of the sliding column (31) away from the clamping plate (33).

10. A method for repairing a backlight module that is easy to repair as claimed in claim 1, characterized in that: The following steps are involved: S1: Place the installation frame (11) on the table, the piston rod (17) will be squeezed and move from bottom to top, the spring (18) will be compressed, the piston rod (17) drives the pawl (16) to move from bottom to top, so that the pawl (16) is engaged with the ratchet (12), the clockwise flipping of the card belt (19) drives the first connecting column (13) to rotate clockwise, the first connecting column (13) drives the ratchet (12) to rotate clockwise, when the ratchet (12) rotates clockwise, the pawl (16) will drive the piston rod (17) to continuously compress and stretch, the card belt (19) will be flipped clockwise by 90 degrees, the pawl (16) will clamp the ratchet (12) to prevent counterclockwise rotation, and then the baffle (21) will be flipped counterclockwise to change the installation frame (11) into a semi-enclosed state; S2: Rotate the bolt (25) counterclockwise to create a distance between the bolt (25) and the sliding block (24), adjust the length of the sliding block (24), rotate the bolt (25) counterclockwise again, squeeze the bolt (25) onto the sliding block (24) to fix the sliding block (24), and raise the installation frame (11) to a certain height; S3: Place the wires to be installed into the metal frame (28), press the second installation plate (34) from both sides toward the middle, the second installation plate (34) drives the sliding column (31) to move from both sides toward the middle, the sliding column (31) will slide along the inside of the through groove (29), the sliding column (31) drives the sliding plate (32) to move from both sides toward the middle, the sliding column (31) drives the clamping plate (33) to move from both sides toward the middle, the clamping plate (33) clamps the wires, rotate the second installation plate (34) counterclockwise, the second installation plate (34) drives the sliding column (31) and the sliding plate (32) to rotate counterclockwise, and the sliding plate (32) is clamped in the metal frame (28).

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