A non-metallic fastener that is easy to disassemble

Abstract

The present invention discloses a non-metallic fastener that is easy to disassemble, relating to the technical field of fasteners, including a nut, a screw and a nut, the outer side of the screw being provided with an external thread, the inner side of the nut being provided with an internal thread matching the screw, the nut being threadedly connected to the external thread of the screw, and a disassembly component being provided inside the nut, the disassembly component comprising a first nut, a second nut, a first rotating block, a second rotating block, a central axis, a micro torsion spring, a first pressure plate and a second pressure plate, the lower side of the first nut and the upper side of the second nut being fitted together, a positioning groove being provided on the right side of the front side of the first nut and the second nut, by providing the micro torsion spring, the central axis, the first rotating block, the second rotating block, the first pressure plate and the second pressure plate, so that when the nut and the screw are slipped, the first pressure plate and the second pressure plate can be directly pressed down to open the right side of the nut, thereby falling off the screw, thereby achieving the effect of easy disassembly.

Description

Technical Field

[0001] The present invention relates to the technical field of fasteners, in particular to a non-metallic fastener that is easy to disassemble. Background Art

[0002] Fasteners are a general term for a type of machine parts that are used to fasten two or more parts (or components) together to form a whole. Fasteners are widely used in various industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, hydraulics, etc. Various fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters and supplies. They are the most widely used mechanical basic parts.

[0003] The proportion of mechanical fasteners made of non-metallic materials is less than one percent, but plastics provide some comprehensive properties that metal materials cannot match. Plastics are light in weight, corrosion-resistant, and have excellent thermal and electrical insulation properties. In addition, their appearance is easy to paint in different colors for coordination and identification.

[0004] Existing non-metallic fasteners, such as bolts, are difficult to remove due to excessive tightening torque and uneven force. Because torque wrenches are not used strictly during assembly, the yield limit of the bolt material is exceeded, causing the connecting rod bolt to yield and deform. This causes the bolt to break due to excessive elongation under impact loads, making it impossible to remove. Furthermore, due to excessive friction between the screw head and nut during removal, when the torque on the nut reaches a certain value, the screw head begins to slip, causing the nut to strip, making removal impossible. Summary of the Invention

[0005] The object of the present invention is to provide a non-metallic fastener that is easy to disassemble, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a non-metallic fastener that is easy to disassemble, comprising a nut, a screw and a nut, wherein the outer side of the screw is provided with an external thread, the inner side of the nut is provided with an internal thread that matches the screw, the nut is threadedly connected to the external thread of the screw, and a disassembly assembly is provided inside the nut, the disassembly assembly comprising:

[0007] first nut;

[0008] A second nut, wherein the lower side of the first nut and the upper side of the second nut are in contact with each other, and a positioning groove is provided on the right side of the front side of the first nut and the second nut;

[0009] a first rotating block, wherein a left side of the first rotating block is fixedly connected to a left side of the first nut;

[0010] A second rotating block, the second rotating block is fixedly connected to the left side of the second nut, the first rotating block and the second rotating block are both provided with a torsion spring groove inside and a rotating hole at both ends;

[0011] A micro torsion spring, wherein the micro torsion spring is arranged inside the torsion spring slot;

[0012] A central shaft, which passes through the rotation opening of the second rotating block, the rotation opening of the first rotating block, and the inner ring of the miniature torsion spring in sequence, and has limit posts at both ends of the central shaft;

[0013] a first pressing plate, the first pressing plate being fixedly connected to the left side of the first rotating block and being in contact with one end of the micro torsion spring;

[0014] The second pressing plate is fixedly connected to the left side of the second rotating column and is in contact with the other end of the miniature torsion spring.

[0015] The present invention further illustrates that a positioning block is slidably connected inside the positioning groove, a fixing block is fixedly connected to the upper side of the positioning block, and a pull ring is provided inside the fixing block.

[0016] The present invention further describes that the positioning grooves are divided into two layers, the first layer of positioning grooves are interconnected rectangular grooves, and the second layer of positioning grooves are separate small square grooves. The positioning blocks are also divided into two layers, the first layer of positioning blocks are separate rectangular blocks, and the second layer of positioning blocks are two separate cubes.

[0017] The present invention further describes that a disassembly groove is provided in the middle of the screw rod and the nut, and the disassembly groove is square.

[0018] The present invention further describes that a hexagonal groove is further provided on the upper side of the nut disassembly groove, a first sliding groove is further provided inside the nut, and a second sliding groove is provided on one side of the first sliding groove.

[0019] The present invention further describes that a nut is fixedly connected to the rear side of the screw, and a clamping assembly is provided inside the nut, and the clamping assembly includes:

[0020] a top block, the top block being slidably connected to the inside of the first chute;

[0021] A pull block, the pull block is slidably connected to the inside of the second slide groove, and a T-slot is provided on the upper side of the pull block;

[0022] a spring, wherein the spring is fixedly connected to one side of the top block, and one end of the spring is fixedly connected to one side of the first sliding groove;

[0023] A pull rod is arranged on the inner side of the spring, the pull rod is fixedly connected to one side of the top block, and one end of the pull rod passes through the inner wall of the nut and is slidably connected to the T-slot.

[0024] The present invention further describes that a first washer is provided on the front side of the nut, and a second washer is provided on the rear side of the nut, and the first washer and the second washer are both penetrated by the screw at the center.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention is provided with a micro torsion spring, a central shaft, a first rotating block, a second rotating block, a first pressing plate and a second pressing plate. When the nut and the screw are slipped, the first pressing plate and the second pressing plate can be directly pressed down to open the right side of the nut, thereby falling off the screw, achieving the effect of easy disassembly.

[0027] By setting a pull block, a spring, a push block and a pull rod, when the screw is disassembled, the push block presses against the hexagonal wrench, and the nut will not fall off the hexagonal wrench and fall into the equipment, causing equipment failure, thus achieving the effect of safe disassembly;

[0028] By providing a disassembly groove, when the screw is broken inside the connector, there is no need to knock out the screw and damage the thread. A square wrench can be directly inserted into the disassembly groove and the broken screw can be taken out by rotating the square wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the connection between the present invention and the connecting piece;

[0032] Figure 3 It is a structural schematic diagram of the nut of the present invention;

[0033] Figure 4 Schematic diagram of the cooperation between the first nut and the second nut of the present invention;

[0034] Figure 5 This is a schematic structural diagram of the invention;

[0035] Figure 6 It is a structural schematic diagram of the nut and screw of the present invention;

[0036] Figure 7 1 is a half-section schematic diagram of the nut of the present invention;

[0037] In the figure: 1. First connecting plate; 2. Second connecting plate; 3. Nut; 4. Screw; 5. First nut; 6. Second nut; 7. First washer; 8. Second washer; 9. Central shaft; 10. Miniature torsion spring; 11. First pressure plate; 12. Second pressure plate; 13. First rotating block; 14. Second rotating block; 15. Torsion spring groove; 16. Positioning groove; 17. Positioning block; 18. Fixed block; 19. Pull ring; 20. Disassembly groove; 21. Hexagonal groove; 22. Pull block; 23. First slide groove; 24. Spring; 25. Top block; 26. Pull rod; 27. Second slide groove. DETAILED DESCRIPTION

[0038] The following is a non-limiting detailed description of the technical solutions of the present invention in conjunction with preferred embodiments and the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0039] See also Figure 1-7 The present invention provides a technical solution: a non-metallic fastener that is easy to disassemble, including a nut 3, a screw 4 and a nut, the outer side of the screw 4 is provided with an external thread, the inner side of the nut is provided with an internal thread that matches the screw 4, the nut thread is connected to the external thread of the screw 4, and a disassembly component is provided inside the nut, and the disassembly component includes a first nut 5, a second nut 6, a first rotating block 13, a second rotating block 14, a central axis 9, a miniature torsion spring 10, a first pressure plate 11 and a second pressure plate 12.

[0040] The lower side of the first nut 5 and the upper side of the second nut 6 fit together, and a positioning groove 16 is provided on the right side of the front side of the first nut 5 and the second nut 6. The left side of the first rotating block 13 is fixedly connected to the left side of the first nut 5, and the second rotating block 14 is fixedly connected to the left side of the second nut 6. The first rotating block 13 and the second rotating block 14 are both provided with a torsion spring groove 15 inside and a rotation hole at both ends. The rotation hole of the first rotating block 13 is provided on the inner side of the rotation hole of the second rotating block 14 and fits together. The micro torsion spring 10 is provided inside the torsion spring groove 15, and the central axis 9 passes through the rotation mouth of the second rotating block 14, the rotation mouth of the first rotating block 13 and the micro torsion spring in sequence. The inner circle of 10, limit columns are provided at both ends of the central axis 9, which can limit the central axis 9 and can only rotate but not move forward and backward. The micro torsion spring 10 is limited by the central axis 9 and cannot move. The first pressure plate 11 is fixedly connected to the left side of the first rotating block 13 and fits with one end of the micro torsion spring 10. The second pressure plate 12 is fixedly connected to the left side of the second rotating column and fits with the other end of the micro torsion spring 10. The worker can press down the first pressure plate 11 and lift the second pressure plate 12 to make the first nut 5 rotate counterclockwise along the central axis 9 and the second nut 6 rotate clockwise along the central axis 9, so that the right side of the nut opens and disengages from the screw 4, achieving the effect of easy disassembly.

[0041] A positioning block 17 is slidably connected inside the positioning groove 16 to prevent the right side of the nut from opening when the first nut 5 and the second nut 6 are rotated and installed, so as to position the first nut 5 and the second nut 6. A fixing block 18 is fixedly connected to the upper side of the positioning block 17, and a pull ring 19 is provided inside the fixing block 18. When the right side of the nut needs to be opened, the pull ring 19 can be pulled to disengage the limit block from the limit groove, thereby allowing the right side of the nut to open.

[0042] The positioning grooves 16 are divided into two layers. The first layer of positioning grooves 16 are interconnected rectangular grooves, and the second layer of positioning grooves 16 are separate small square grooves. The positioning blocks 17 are also divided into two layers. The first layer of positioning blocks 17 are separate rectangular parallelepipeds, and the second layer of positioning blocks 17 are two separate cubes.

[0043] A disassembly groove 20 is provided in the middle of the screw rod 4 and the nut 3, and the disassembly groove 20 is square.

[0044] A hexagonal groove 21 is further provided on the upper side of the disassembly groove 20 of the nut 3, and a first sliding groove 23 is further provided inside the nut 3. A second sliding groove 27 is provided on one side of the first sliding groove 23. The first sliding groove 23 and the second sliding groove 27 can be used for sliding of the sliding part.

[0045] The rear side of the screw 4 is fixedly connected with a nut 3, and a clamping assembly is provided inside the nut 3, which includes a pull block 22, a spring 24, a top block 25 and a pull rod 26. The top block 25 is slidably connected to the inside of the first slide groove 27, and the pull block 22 is slidably connected to the inside of the second slide groove 27. The spring 24 is fixedly connected to one side of the top block 25, and one end of the spring 24 is fixedly connected to one side of the first slide groove 23. The pull rod 26 is provided on the inner side of the spring 24, and a T-slot is provided on the upper side of the pull block 22. Both sides of the T-slot are limited. The pull block 22 is slidably connected to the second slide groove 27, and the pull rod 26 is fixedly connected to one side of the top block 25. One end of the pull rod 26 passes through the inner wall of the nut and is slidably connected to the T-slot. By pulling the pull block 22, the top block 25 can be pulled down along the first slide groove 23. The spring 24 is compressed by the top block 25. When the other side plane of the top block 25 is flush with the plane of the hexagonal groove 21, the compression limit of the spring 24 is reached. The pull block 22 is now out of the second slide groove 27. The pull block 22 is slid to the left along the T groove, and the upper contact surface of the pull block 22 is fitted with the outer contact surface of the nut, thereby limiting the sliding of the top block 25. The pull block 22 is slid to the right again, and the upper contact surface of the pull block 22 is no longer fitted with the outer contact surface of the nut. The spring 24 extends and pushes the top block 25 out along the first slide groove 23. The pull block 22 slides into the second slide groove 27. The top block 25 can resist the hexagonal wrench to prevent the screw 4 from being separated from the hexagonal wrench and falling into the equipment when it is completely unscrewed, causing equipment failure, thereby achieving the effect of safe disassembly.

[0046] A first washer 7 is provided on the front side of the nut 3, and a second washer 8 is provided on the back side of the nut. The first washer 7 and the second washer 8 are both penetrated by the screw 4. The first washer 7 can prevent the nut 3 from crushing the first connecting plate 1, and the second washer 8 can prevent the nut from crushing the second connecting plate 2.

[0047] The following steps are involved:

[0048] S1: Pull the pull ring 19 to pull the positioning block 17 out along the positioning groove 16, and put the positioning block 17 into the storage box;

[0049] S2: Press down the first pressing plate 11 and the second pressing plate 12, and the two ends of the torsion spring are driven to press down. The first nut 5 rotates counterclockwise along the central axis 9, and the second nut 6 rotates clockwise along the central axis 9, so that the right side of the nut opens;

[0050] S3: Take out the nut and stop pressing the first pressing plate 11 and the second pressing plate 12. The first pressing plate 11 and the second pressing plate 12 are driven back to their original positions by the micro torsion spring 10, and the nut is placed in the storage box.

[0051] S4: Take out the second gasket 8 and put it into the storage box;

[0052] S5: Insert one end of the hexagonal wrench into the hexagonal slot 21, slide the pull block 22 to the right along the T-slot, the spring 24 extends, and pushes the push block 25 out along the first slide groove 23, and the pull block 22 slides into the second slide groove 27;

[0053] S6: Rotate the hexagonal wrench counterclockwise to completely unscrew the screw 4 from the first connecting plate 1 and the second connecting plate 2. The hexagonal wrench is supported by the push block 25, and the nut 3 is not easy to be separated from the hexagonal wrench.

[0054] S7: Take out the first gasket 7 and put it into the storage box;

[0055] S8: Bring the nut 3 and the screw 4 to the storage box, pull the pull block 22 to slide along the second slide groove 27, and the pull rod 26 drives the top block 25 to slide along the first slide groove 23. Slide the pull block 22 to the left along the T-slot. The top block 25 is limited and no longer slides. The hexagonal wrench is no longer pushed up, and the nut 3 is separated from the hexagonal wrench and falls into the storage box with the screw 4.

[0056] S9: When the screw rod 4 breaks and is stuck between the first connecting plate 1 and the second connecting plate 2, insert the square wrench into the disassembly slot 20 and rotate it counterclockwise to unscrew the broken screw rod 4.

[0057] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0058] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the aforementioned embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A non-metallic fastener that is easy to disassemble, comprising a nut (3), a screw (4) and a nut, characterized in that: The outer side of the screw (4) is provided with an external thread, the inner side of the nut is provided with an internal thread that matches the screw (4), the nut is threadedly connected to the external thread of the screw (4), and a disassembly component is provided inside the nut, the disassembly component comprising: a first nut (5); A second nut (6), wherein the lower side of the first nut (5) and the upper side of the second nut (6) are in contact with each other, and a positioning groove (16) is provided on the right side of the front side of the first nut (5) and the second nut (6); a first rotating block (13), the left side of the first rotating block (13) being fixedly connected to the left side of the first nut (5); a second rotating block (14), the second rotating block (14) being fixedly connected to the left side of the second nut (6), the first rotating block (13) and the second rotating block (14) both having torsion spring grooves (15) inside and rotating holes at both ends; A micro torsion spring (10), wherein the micro torsion spring (10) is arranged inside the torsion spring slot (15); A central shaft (9), the central shaft (9) sequentially passing through the rotation opening of the second rotating block (14), the rotation opening of the first rotating block (13) and the inner ring of the miniature torsion spring, and limiting columns are provided at both ends of the central shaft (9); a first pressing plate (11), the first pressing plate (11) being fixedly connected to the left side of the first rotating block (13) and being in contact with one end of the micro torsion spring (10); a second pressing plate (12), the second pressing plate (12) being fixedly connected to the left side of the second rotating column and being in contact with the other end of the micro torsion spring (10); A positioning block (17) is slidably connected inside the positioning groove (16), a fixing block (18) is fixedly connected to the upper side of the positioning block (17), and a pull ring (19) is provided inside the fixing block (18); The positioning grooves (16) are divided into two layers, the first layer of positioning grooves are interconnected rectangular grooves, and the second layer of positioning grooves are separate small square grooves. The positioning blocks (17) are also divided into two layers, the first layer of positioning blocks (17) are separate rectangular parallelepipeds, and the second layer of positioning blocks (17) are two separate cubes. A disassembly groove (20) is provided in the middle of the screw rod (4) and the nut (3), and the disassembly groove (20) is square; A hexagonal groove (21) is further provided on the upper side of the disassembly groove (20) of the nut (3), a first sliding groove (23) is further provided inside the nut (3), and a second sliding groove (27) is provided on one side of the first sliding groove (23); The rear side of the screw rod (4) is fixedly connected to a nut (3), and a clamping assembly is provided inside the nut (3), and the clamping assembly includes: A top block (25), wherein the top block (25) is slidably connected to the inside of the first sliding groove (23); A pull block (22), wherein the pull block (22) is slidably connected to the inside of the second slide groove (27), and a T-slot is provided on the upper side of the pull block (22); A spring (24), wherein the spring (24) is fixedly connected to one side of the top block (25), and one end of the spring (24) is fixedly connected to one side of the first sliding groove (23); A pull rod (26) is provided on the inner side of the spring (24), the pull rod (26) is fixedly connected to one side of the top block (25), and one end of the pull rod (26) passes through the inner wall of the nut and is slidably connected to the T-slot.

2. The non-metallic fastener for easy disassembly according to claim 1, characterized in that: A first washer (7) is provided on the front side of the nut (3), and a second washer (8) is provided on the rear side of the nut. The first washer (7) and the second washer (8) are both pierced through the center by the screw rod (4).

3. The method for using a non-metallic fastener that is easy to disassemble according to claim 2, characterized in that: The following steps are involved: S1: Pull the pull ring (19), pull the positioning block (17) out along the positioning groove (16), and put the positioning block (17) into the storage box; S2: Press down the first pressing plate (11) and the second pressing plate (12), and the two ends of the torsion spring are driven to press down, the first nut (5) rotates counterclockwise along the central axis (9), and the second nut (6) rotates clockwise along the central axis (9), so that the right side of the nut opens; S3: Take out the nut and stop pressing the first pressing plate (11) and the second pressing plate (12). The first pressing plate (11) and the second pressing plate (12) are driven by the micro torsion spring (10) to return to their original positions, and the nut is placed in the storage box; S4: Take out the second gasket (8) and put it into the storage box; S5: Insert one end of the hexagonal wrench into the hexagonal slot (21), slide the pull block (22) to the right along the T-slot, extend the spring (24), push the top block (25) out along the first slide groove (23), and slide the pull block (22) into the second slide groove (27); S6: Rotate the hexagonal wrench counterclockwise to completely unscrew the screw (4) from the inside of the first connecting plate (1) and the second connecting plate (2). The hexagonal wrench is supported by the top block (25), and the nut (3) is not easy to be separated from the hexagonal wrench; S7: Take out the first gasket (7) and put it into the storage box; S8: Bring the nut (3) and the screw (4) to the storage box, pull the pull block (22) to slide along the second slide groove (27), and the pull rod (26) drives the top block (25) to slide along the first slide groove (23), and slide the pull block (22) to the left along the T groove. The top block (25) is limited and no longer slides, and the hexagonal wrench is no longer pushed by the pillar. The nut (3) is separated from the hexagonal wrench and falls into the storage box with the screw (4); S9: When the screw (4) breaks and is stuck between the first connecting plate (1) and the second connecting plate (2), insert the square wrench into the disassembly groove (20) and rotate it counterclockwise to unscrew the broken screw (4).

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