A drilling structure for computer manufacturing

Abstract

The present invention relates to the technical field of computer manufacturing and processing, and specifically to a drilling structure for computer manufacturing and processing, comprising: a drilling equipment body, a storage block is slidably arranged directly above, and the storage block is in a rectangular structure; a storage frame is arranged at a central symmetrical position on the lower surface of the storage block; a first storage groove is opened at a central symmetrical position on the upper surface of the storage block; the beneficial effect is: to prevent debris from adhering to the surface of the screw rod, a first dust cover shell and a second dust cover shell are sleeved on the outer surface of the screw rod, and when the screw rod needs to be lubricated, the connecting rod is pulled outward, and the locking block is taken out from the inside of the fixing groove, so that the upper end surface of the screw rod leaks out, and the surface of the screw rod is lubricated, and the lubricating oil will fall along the surface of the screw rod, so that the lubricating oil adheres to the surface of the entire screw rod, and to prevent the lubricating oil from dripping from the bottom end of the screw rod, a collection box is inserted and arranged directly below the screw rod, and a collection groove is opened on the upper surface of the collection box, and the collection groove can collect the lubricating oil.

Description

Technical Field

[0001] The invention relates to the technical field of computer manufacturing and processing, in particular to a drilling structure for computer manufacturing and processing. Background Art

[0002] Computer is commonly known as computer. It is a modern electronic computing machine used for high-speed calculation. It can perform numerical calculations, logical calculations, and has storage and memory functions. It is a modern intelligent electronic device that can run according to programs and automatically and quickly process massive amounts of data. It is composed of hardware systems and software systems. A computer without any software installed is called a bare metal computer.

[0003] The computer manufacturing system refers to the series of processes that various computer systems, peripherals, terminal devices and other related equipment industries go through from parts manufacturing to finished products. From the appearance, the computer is composed of a main chassis and external devices. The main chassis mainly includes the CPU, memory, motherboard, hard disk drive, optical disk drive, various expansion cards, connecting cables, power supply, etc.

[0004] During the manufacturing process of computers, a drilling device is needed to drill mounting holes around the motherboard to facilitate fixing the motherboard to the inside of the host case through fixing bolts. The existing drilling device will generate some waste chips when drilling holes in the motherboard. The waste chips are easily adhered to the surface of the screw under the high speed drive of the drilling cutter, affecting the up and down movement of the drilling cutter. In the long run, it is easy to cause insufficient drilling accuracy. Summary of the invention

[0005] The object of the present invention is to provide a drilling structure for computer manufacturing processing to solve the problem in the background art that the debris generated during the drilling process will adhere to the surface of the screw.

[0006] To achieve the above object, the present invention provides the following technical solution: a drilling structure for computer manufacturing and processing, the drilling structure for computer manufacturing and processing comprising:

[0007] The drilling equipment body, a storage block is slidably arranged just above the drilling equipment body, and the storage block is in a rectangular structure;

[0008] A storage frame, which is arranged at a centrally symmetrical position on the lower surface of the storage block, and has a middle rectangular structure;

[0009] The first storage groove is arranged at a central symmetrical position of the upper surface of the storage block, and the first storage groove is a hollow cylindrical structure.

[0010] Preferably, a first fixed block is fixedly connected to one side of the upper surface of the storage block, and the cross-section of the first fixed block is an "L"-shaped structure. A servo motor is fixedly arranged at a centrally symmetrical position on the upper surface of one end of the first fixed block away from the storage block, and the output end of the servo motor passes through the side wall of the first fixed block and is connected to a screw rod, and the end of the screw rod away from the servo motor is arranged inside the storage block.

[0011] Preferably, bearings are fixedly sleeved on the outer surfaces of both ends of the screw rod, and the screw rod is rotatably arranged between the interior of the storage block and the output end of the servo motor through the bearings, and a second fixed block is sleeved on the outer surface of the screw rod, and a thread matching the screw rod is arranged inside the second fixed block, and the second fixed block moves between the top end of the first fixed block and the upper surface of the storage block through the screw rod.

[0012] Preferably, the cross-section of the second fixed block is an "L"-shaped structure, and a support rod is slidably inserted into the side wall surface of the second fixed block on which the screw is rotatably inserted, and the two ends of the support rod are respectively fixedly connected to the top lower surface of the first fixed block and the upper surface of the storage block, and two groups of support rods are provided, and the two groups of support rods are symmetrically distributed with the screw as the center, and a drilling shaft is fixedly provided at a central symmetrical position at the end of the second fixed block away from the screw.

[0013] Preferably, the storage frame is located directly below the end of the screw rod away from the servo motor, a slide groove is provided at a central symmetrical position of the inner side of the storage frame, two groups of slide grooves are provided, and the two groups of slide grooves are symmetrically distributed with the storage frame as the center, and sliders are slidably provided inside the two groups of slide grooves, and the sizes of the sliders match the slide grooves, and the two groups of sliders are respectively fixedly arranged at the central symmetrical positions of the side walls of the two sides of the collection box, and the collection box is slidably arranged inside the storage frame through the two groups of sliders, and the size of the collection box matches the storage frame, and a sink groove is provided at the central symmetrical position of the side wall on one side of the opening end of the storage frame, and a limiting block is inserted in the sink groove, and the size of the limiting block matches the sink groove, and one end of the side wall of one side of the limiting block is fixedly connected to a pull rod, and the end of the pull rod away from the limiting block passes through the side wall of the storage frame and extends to the outside of the storage frame, and the outer surface of the pull rod is sleeved with a first return spring, and the first return spring is fixedly arranged between the outer surface of the storage frame and the end of the pull rod, and two groups of limit blocks are provided, and the two groups of limit blocks are symmetrically distributed with the storage frame as the center.

[0014] Preferably, a collecting groove is provided at a centrally symmetrical position on the upper surface of the collecting box, the collecting groove is located directly below one end of the screw rod, and the size of the collecting groove matches the size of the end of the screw rod, and a storage hole is provided at a centrally symmetrical position on one side wall of the collecting box, and two groups of storage holes are provided, the two groups of storage holes are symmetrically distributed with the collecting box as the center, and a third return spring is provided inside the two groups of storage holes, the size of the third return spring matches the storage hole, and one end of the third return spring is fixedly connected to the inner wall of the storage hole.

[0015] Preferably, the first receiving groove is opened on the outside of the screw rod, and a first dust cover shell is arranged inside the screw rod. The cross-section of the first dust cover shell is annular in structure, the size of the first dust cover shell matches the first receiving groove, and one end of the first dust cover shell is fixedly connected to the central symmetrical position of the bottom of the first receiving groove, and one end of the first dust cover shell is fixedly connected to the lower surface of the second fixed block at a central symmetrical position of the bottom of the first receiving groove. A through hole is opened at a central symmetrical position of the bottom of the first receiving groove, the through hole is inclined, and one end of the through hole is connected to the outer surface of the screw rod away from the first receiving groove.

[0016] Preferably, a second receiving groove is provided on the upper surface of one end of the second fixed block away from the first dustproof cover shell, and the second receiving groove is a hollow cylindrical structure. The second receiving groove is opened on the outside of the screw rod, and a second dustproof cover shell is arranged inside the second receiving groove. The size of the second dustproof cover shell matches the second receiving groove, and one end of the second dustproof cover shell is fixedly connected to the lower surface of the second receiving groove.

[0017] Preferably, the end portion of the second dust cover shell away from the second storage groove is fixedly connected to the central symmetrical position of the side wall of the locking block, the locking block is a hollow cylindrical structure, the end portion of the locking block away from the second dust cover shell is inserted into the interior of the fixed groove, the size of the fixed groove matches the locking block, the fixed groove is opened at the central symmetrical position of the lower surface of the end portion of the first fixed block away from the storage block, the fixed groove is located on the outside of the screw rod, and a groove is opened at the central symmetrical position of the outer side of the locking block.

[0018] Preferably, a limiting block is inserted inside the groove, the size of the groove matches the limiting block, and one end of a connecting rod is fixedly connected to a center-symmetrical position of one end of the limiting block away from the groove, the end of the connecting rod away from the limiting block passes through the side wall of the first fixed block and extends to the outer surface of the first fixed block, and a second return spring is sleeved on the outer surface of the connecting rod, and the second return spring is fixedly arranged between the end of the connecting rod away from the limiting block and the outer surface of the first fixed block.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention proposes a drilling structure for computer manufacturing and processing, in order to prevent debris from adhering to the surface of the screw rod and affecting the drilling accuracy, a first dust cover shell and a second dust cover shell are sleeved on the outer surface of the screw rod. When the screw rod needs to be lubricated, the connecting rod is pulled outward, and the connecting rod drives the limit block to move outward, and at the same time stretches the second return spring. When the end of the limit block no longer limits the groove, the locking block can be taken out from the inside of the fixed groove, and the second dust cover shell is stored in the inside of the second storage groove, so that the upper end surface of the screw rod leaks out and the surface of the screw rod is lubricated. Under the action of gravity, the lubricating oil will fall along the surface of the screw rod, so that the lubricating oil adheres to the surface of the entire screw rod. In order to prevent the lubricating oil from dripping from the bottom end of the screw rod to the upper surface of the drilling equipment body, a collecting box is inserted and arranged directly below the screw rod, and a collecting groove is opened on the upper surface of the collecting box, and the collecting groove can collect the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 3 for Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0024] Figure 4 This is a schematic diagram of the structural connection between the first fixing block and the second fixing block of the present invention;

[0025] Figure 5 A cross-sectional view of the connection structure between the first fixing block and the second fixing block of the present invention;

[0026] Figure 6 for Figure 5 A magnified schematic diagram of the structure at C in the middle;

[0027] Figure 7 for Figure 5 A magnified schematic diagram of the structure at D in the middle;

[0028] Figure 8 for Figure 5 The enlarged schematic diagram of the structure at E in the middle;

[0029] Fig. 9 It is a schematic diagram of the structure of the collecting box of the present invention.

[0030] In the figure: drilling equipment body 1, first fixed block 2, servo motor 3, drilling shaft 4, second fixed block 5, storage block 6, storage frame 7, collection box 8, slide groove 9, limit block 10, sink groove 11, pull rod 12, first return spring 13, first dust cover shell 14, support rod 15, screw rod 16, first storage groove 17, second storage groove 18, second dust cover shell 19, fixed groove 20, locking block 21, groove 22, limit block 23, connecting rod 24, second return spring 25, collection groove 26, slider 27, storage hole 28, third return spring 29, through hole 30. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 9 The present invention provides a technical solution: a drilling structure for computer manufacturing and processing, the drilling structure for computer manufacturing and processing comprises:

[0033] A drilling equipment body 1, a placement block 6 is slidably arranged just above the drilling equipment body 1, the placement block 6 is of a rectangular structure, a first fixed block 2 is fixedly connected to one side of the upper surface of the placement block 6, the cross section of the first fixed block 2 is of an "L"-shaped structure, a servo motor 3 is fixedly arranged at a central symmetrical position of the upper surface of one end of the first fixed block 2 away from the placement block 6, the output end of the servo motor 3 passes through the side wall of the first fixed block 2 and is connected to a screw rod 16, the end of the screw rod 16 away from the servo motor 3 is arranged inside the placement block 6, the outer surfaces of both ends of the screw rod 16 are fixedly sleeved with bearings, the screw rod 16 is rotatably arranged between the inside of the placement block 6 and the output end of the servo motor 3 through the bearing, the screw rod 1 The outer surface of 6 is sleeved with a second fixed block 5, and the interior of the second fixed block 5 is provided with a thread matching the screw rod 16. The second fixed block 5 moves between the top of the first fixed block 2 and the upper surface of the storage block 6 through the screw rod 16. The cross section of the second fixed block 5 is an "L"-shaped structure. The side wall surface of the second fixed block 5 that is rotatably plugged with the screw rod 16 is slidably plugged with a support rod 15. The two ends of the support rod 15 are respectively fixedly connected to the lower surface of the top of the first fixed block 2 and the upper surface of the storage block 6. Two groups of support rods 15 are provided, and the two groups of support rods 15 are symmetrically distributed with the screw rod 16 as the center, and a drilling shaft 4 is fixedly provided at a central symmetrical position of one end of the second fixed block 5 away from the screw rod 16;

[0034] The storage frame 7 is arranged at a centrally symmetrical position on the lower surface of the storage block 6. The storage frame 7 is in an intermediate rectangular structure. The storage frame 7 is located directly below the end of the screw rod 16 away from the servo motor 3. A slide groove 9 is provided at a centrally symmetrical position on the inner side of the storage frame 7. Two groups of slide grooves 9 are provided. The two groups of slide grooves 9 are symmetrically distributed with the storage frame 7 as the center. Slide blocks 27 are slidably provided inside the two groups of slide grooves 9. The size of the slide blocks 27 matches the slide groove 9. The two groups of slide blocks 27 are respectively fixed at centrally symmetrical positions on both side walls of the collection box 8. The collection box 8 is slidably arranged inside the storage frame 7 through the two groups of slide blocks 27. The size of the collection box 8 matches the storage frame 7. A sink groove 11 is provided at a centrally symmetrical position on the side wall of one side of the opening end of the storage frame 7. A limiting block 10 is inserted into the sink groove 11. The size of the limiting block 10 matches the sink groove 11, and one end of a pull rod 12 is fixedly connected to one side wall of the limiting block 10. The pull rod 12 One end away from the limit block 10 passes through the side wall of the storage frame 7 and extends to the outside of the storage frame 7. The outer surface of the pull rod 12 is sleeved with a first return spring 13, and the first return spring 13 is fixedly arranged between the outer surface of the storage frame 7 and the end of the pull rod 12. There are two groups of limit blocks 10, and the two groups of limit blocks 10 are symmetrically distributed with the storage frame 7 as the center. A collecting groove 26 is opened at a central symmetrical position on the upper surface of the collecting box 8, and the collecting groove 26 is located directly below one end of the screw rod 16, and the size of the collecting groove 26 matches the size of the end of the screw rod 16. A storage hole 28 is opened at a central symmetrical position on one side wall of the collecting box 8. There are two groups of storage holes 28, and the two groups of storage holes 28 are symmetrically distributed with the collection box 8 as the center, and a third return spring 29 is arranged inside the two groups of storage holes 28. The size of the third return spring 29 matches the storage hole 28, and one end of the third return spring 29 is fixedly connected to the inner wall of the storage hole 28;

[0035] The first receiving groove 17 is provided at a central symmetrical position on the upper surface of the storage block 6. The first receiving groove 17 is a hollow cylindrical structure. The first receiving groove 17 is provided on the outer side of the screw rod 16. The screw rod 16 is provided with a first dust cover 14 inside. The cross section of the first dust cover 14 is an annular structure. The size of the first dust cover 14 matches the first receiving groove 17. One end of the first dust cover 14 is fixedly connected to the bottom central symmetrical position of the first receiving groove 17. The end of the first dust cover 14 away from the first receiving groove 17 is fixedly connected to the first receiving groove 17. On the lower surface of the second fixing block 5, a through hole 30 is provided at a symmetrical position at the bottom center of the first receiving groove 17, and the through hole 30 is in an inclined state. The end of the through hole 30 away from the first receiving groove 17 is connected to the outer surface of the screw rod 16. The upper surface of the end of the second fixing block 5 away from the first dust cover 14 is provided with a second receiving groove 18, and the second receiving groove 18 is in a hollow cylindrical structure. The second receiving groove 18 is provided on the outer side of the screw rod 16, and a second dust cover 19 is provided inside the second receiving groove 18. The size of the second dust cover 19 matches the second receiving groove 18, and the second dust cover 19 is provided in a similar manner to the second receiving groove 18. One end of the cover shell 19 is fixedly connected to the lower surface of the second storage groove 18, and the end of the second dust cover shell 19 away from the second storage groove 18 is fixedly connected to the side wall of the clamping block 21 at a symmetrical position in the center. The clamping block 21 is a hollow cylindrical structure. The end of the clamping block 21 away from the second dust cover shell 19 is inserted into the interior of the fixed groove 20. The size of the fixed groove 20 matches the clamping block 21. The fixed groove 20 is opened at a symmetrical position on the lower surface of the end of the first fixed block 2 away from the storage block 6. The fixed groove 20 is located on the outside of the screw rod 16, and the outer side of the clamping block 21 is A groove 22 is provided at a centrally symmetrical position, and a limiting block 23 is inserted inside the groove 22. The size of the groove 22 matches the limiting block 23. One end of the limiting block 23 away from the groove 22 is fixedly connected with one end of a connecting rod 24 at a centrally symmetrical position. The end of the connecting rod 24 away from the limiting block 23 passes through the side wall of the first fixed block 2 and extends to the outer surface of the first fixed block 2. The outer surface of the connecting rod 24 is sleeved with a second return spring 25, and the second return spring 25 is fixedly arranged between the end of the connecting rod 24 away from the limiting block 23 and the outer surface of the first fixed block 2.

[0036] When in use, the servo motor 3 drives the screw rod 16 to rotate, and the second fixed block 5 arranged on the outer surface of the screw rod 16 moves up and down along the screw rod 16 under the cooperation of the two sets of support rods 15, thereby driving the drilling shaft 4 to move up and down to drill holes. The first dust cover 14 and the second dust cover 19 sleeved on the outer surface of the screw rod 16 can block the waste chips generated by drilling to prevent the chips from adhering to the outer surface of the screw rod 16;

[0037] Due to the protection of the first dust cover 14 and the second dust cover 19, when it is necessary to lubricate the screw rod 16, the connecting rod 24 is pulled outward, and the connecting rod 24 drives the limit block 23 to move outward, and at the same time stretches the second return spring 25. When the end of the limit block 23 no longer limits the groove 22, the locking block 21 can be taken out from the inside of the fixing groove 20, and the second dust cover 19 is stored in the inside of the second storage groove 18, so that the upper end surface of the screw rod 16 leaks out and the surface of the screw rod 16 is lubricated. Under the action of gravity, the lubricating oil will fall along the surface of the screw rod 16, so that the lubricating oil adheres to the surface of the entire screw rod 16. In order to prevent the lubricating oil from dripping from the bottom end of the screw rod 16 to the upper surface of the drilling equipment body 1, a collecting box 8 is inserted and provided directly below the screw rod 16, and a collecting groove 26 is provided on the upper surface of the collecting box 8, and the collecting groove 26 can collect the lubricating oil;

[0038] At the same time, in order to prevent the lubricating oil from being stored in the first receiving groove 17, a through hole 30 is opened at the bottom of the first receiving groove 17. The lubricating oil stored in the first receiving groove 17 will drip into the collecting groove 26 through the through hole 30. When the collecting box 8 needs to be cleaned, the two sets of pull rods 12 are pulled at the same time, and the pull rods 12 drive the limit block 10 to move. When the limit block 10 is retracted into the inside of the sink 11, under the action of the two sets of third return springs 29, the collecting box 8 will pop out from the inside of the storing frame 7.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling structure for computer manufacturing, characterized in that: The computer manufacturing and processing drilling structure comprises: A drilling device body (1), a storage block (6) is slidably disposed directly above the drilling device body (1), and the storage block (6) is in a rectangular structure; A storage frame (7), the storage frame (7) is arranged at a centrally symmetrical position on the lower surface of the storage block (6), and the storage frame (7) is in a middle rectangular structure; A first receiving groove (17), the first receiving groove (17) being arranged at a centrally symmetrical position on the upper surface of the storage block (6), and the first receiving groove (17) being a hollow cylindrical structure; A first fixed block (2) is fixedly connected to one side of the upper surface of the placement block (6); the cross section of the first fixed block (2) is in an "L"-shaped structure; a servo motor (3) is fixedly arranged at a centrally symmetrical position on the upper surface of one end of the first fixed block (2) away from the placement block (6); the output end of the servo motor (3) passes through the side wall of the first fixed block (2) and is connected to a screw rod (16); and the end of the screw rod (16) away from the servo motor (3) is arranged inside the placement block (6); The outer surfaces of both ends of the screw rod (16) are fixedly sleeved with bearings, and the screw rod (16) is rotatably arranged between the inside of the placement block (6) and the output end of the servo motor (3) through the bearings. The outer surface of the screw rod (16) is sleeved with a second fixed block (5), and the inside of the second fixed block (5) is provided with a thread matching the screw rod (16). The second fixed block (5) moves between the top end of the first fixed block (2) and the upper surface of the placement block (6) through the screw rod (16); The cross section of the second fixed block (5) is in an "L"-shaped structure. The side wall surface of the second fixed block (5) on which the screw rod (16) is rotatably inserted is slidably inserted with a support rod (15). The two ends of the support rod (15) are respectively fixedly connected to the lower surface of the top of the first fixed block (2) and the upper surface of the storage block (6). Two groups of support rods (15) are provided. The two groups of support rods (15) are symmetrically distributed with the screw rod (16) as the center. A drilling shaft (4) is fixedly provided at a central symmetrical position of one end of the second fixed block (5) away from the screw rod (16); The storage frame (7) is located directly below the end of the screw rod (16) away from the servo motor (3). A slide groove (9) is provided at a central symmetrical position on the inner side of the storage frame (7). Two groups of slide grooves (9) are provided. The two groups of slide grooves (9) are symmetrically distributed with the storage frame (7) as the center. Slide blocks (27) are slidably provided inside the two groups of slide grooves (9). The size of the slide blocks (27) matches the slide grooves (9). The two groups of slide blocks (27) are respectively fixedly provided at central symmetrical positions on both side walls of the collection box (8). The collection box (8) is slidably provided inside the storage frame (7) through the two groups of slide blocks (27). The size of the collection box (8) matches the storage frame (7). One side of the opening end of the storage frame (7) A groove (11) is provided at a central symmetrical position of the side wall, a limit block (10) is inserted into the inside of the groove (11), the size of the limit block (10) matches the groove (11), and one end of a pull rod (12) is fixedly connected to one side wall of the limit block (10), the end of the pull rod (12) away from the limit block (10) passes through the side wall of the storage frame (7) and extends to the outside of the storage frame (7), the outer surface of the pull rod (12) is sleeved with a first return spring (13), the first return spring (13) is fixedly arranged between the outer surface of the storage frame (7) and the end of the pull rod (12), and two groups of limit blocks (10) are provided, and the two groups of limit blocks (10) are symmetrically distributed with the storage frame (7) as the center; A collecting groove (26) is provided at a central symmetrical position on the upper surface of the collecting box (8), the collecting groove (26) is located directly below one end of the screw rod (16), and the size of the collecting groove (26) matches the size of the end of the screw rod (16), a receiving hole (28) is provided at a central symmetrical position on a side wall of one side of the collecting box (8), two groups of receiving holes (28) are provided, the two groups of receiving holes (28) are symmetrically distributed with the collecting box (8) as the center, and a third return spring (29) is provided inside the two groups of receiving holes (28), the size of the third return spring (29) matches the receiving hole (28), and one end of the third return spring (29) is fixedly connected to the inner wall of the receiving hole (28); The first receiving groove (17) is opened on the outer side of the screw rod (16), and a first dust cover shell (14) is arranged inside the screw rod (16). The cross section of the first dust cover shell (14) is annular in structure. The size of the first dust cover shell (14) matches the first receiving groove (17), and one end of the first dust cover shell (14) is fixedly connected to the central symmetrical position of the bottom of the first receiving groove (17). The end of the first dust cover shell (14) away from the first receiving groove (17) is fixedly connected to the lower surface of the second fixed block (5). A through hole (30) is opened at the central symmetrical position of the bottom of the first receiving groove (17). The through hole (30) is in an inclined state, and the end of the through hole (30) away from the first receiving groove (17) is connected to the outer surface of the screw rod (16); A second receiving groove (18) is provided on the upper surface of one end of the second fixing block (5) away from the first dust cover shell (14); the second receiving groove (18) is in a hollow cylindrical structure; the second receiving groove (18) is provided on the outer side of the screw rod (16); a second dust cover shell (19) is provided inside the second receiving groove (18); the size of the second dust cover shell (19) matches the second receiving groove (18), and one end of the second dust cover shell (19) is fixedly connected to the lower surface of the second receiving groove (18); The end of the second dust cover shell (19) away from the second receiving groove (18) is fixedly connected to the central symmetrical position of the side wall of the locking block (21); the locking block (21) is in a hollow cylindrical structure; the end of the locking block (21) away from the second dust cover shell (19) is inserted into the interior of the fixing groove (20); the size of the fixing groove (20) matches that of the locking block (21); the fixing groove (20) is arranged at a central symmetrical position on the lower surface of the end of the first fixing block (2) away from the storage block (6); the fixing groove (20) is located on the outside of the screw rod (16); and a groove (22) is arranged at a central symmetrical position on the outside of the locking block (21); A limiting block (23) is inserted into the interior of the groove (22), the size of the groove (22) matches the limiting block (23), one end of the limiting block (23) away from the groove (22) is fixedly connected to one end of a connecting rod (24) at a central symmetrical position, the end of the connecting rod (24) away from the limiting block (23) passes through the side wall of the first fixed block (2) and extends to the outer surface of the first fixed block (2), the outer surface of the connecting rod (24) is sleeved with a second return spring (25), and the second return spring (25) is fixedly arranged between the end of the connecting rod (24) away from the limiting block (23) and the outer surface of the first fixed block (2).

Images