Corrosion-resistant anti-seismic fastener

By designing the stud and nut structure in the fastener, combined with the transmission module and working module, the coordination of the limit elastic plate and the transmission rod is used to solve the problem of loosening of the fastener due to vibration in high-speed rail applications, and the effect of earthquake resistance and stable connection is achieved.

CN119687084APending Publication Date: 2025-03-25RUIAN DONGPENG VEHICLE FITTINGS FACTORY
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Patent Information

Application Number
CN202510173672.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

In high-speed rail applications, existing fasteners are loose due to long-term vibration, resulting in unstable connections.

Method used

A corrosion-resistant and shock-resistant fastener is designed, adopting a stud and nut structure, and a transmission module and a working module are installed inside it. Through the cooperation of the limit elastic plate and the transmission rod, the friction between the fastener and the connecting member is increased to prevent loosening.

Benefits of technology

It effectively avoids the fastener loosening due to vibration, achieving earthquake resistance. At the same time, through the design of special tools, the stability of the fastener and the normal operation of the high-speed rail are ensured.

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Abstract

The invention relates to the technical field of fasteners, and discloses a corrosion-resistant anti-seismic fastener which comprises a stud and a nut, the stud and the nut are fixed together, and auxiliary assemblies are further arranged in the stud and the nut; the auxiliary assembly comprises a transmission module and a working module, and the transmission module provides power transmission for the working module; the transmission module comprises a transmission rod, the transmission rod rotates in the stud and the nut, and a disassembly and assembly groove is fixed to the transmission rod; according to the anti-seismic fastener, through the arrangement of the working module, the friction force between the fastener and the connecting piece can be increased through the processes of extrusion limiting and the like in various installation environments, so that the possibility of loosening of the fastener is avoided, and the anti-seismic effect is achieved.
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Description

Technical Field

[0001] The invention relates to the technical field of fasteners, in particular to a corrosion-resistant and shock-resistant fastener. Background Art

[0002] A general term for a type of mechanical parts used to fasten two or more parts (or components) into a whole, which usually includes bolts, screws, screws, nuts, etc.

[0003] Bolts are a common mechanical part. They are a type of fastener consisting of a bolt head and a screw. They are used to fasten two parts with through holes and are widely used in the field of high-speed rail machinery.

[0004] However, after the bolts are tightened, long-term vibration will cause them to loosen, making the two connecting parts unstable. This is especially true when used in high-speed rail environments. Since high-speed rails will generate large and long-lasting vibrations during their operation, the fasteners on them will be more likely to loosen. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides a corrosion-resistant and earthquake-resistant fastener, which has the advantage of earthquake resistance on high-speed railways.

[0006] In order to achieve the above-mentioned purpose of earthquake resistance on high-speed railway, the present invention provides the following technical solution: comprising a stud and a nut, the stud and the nut are fixed together, and auxiliary components are also arranged in the stud and the nut; The auxiliary assembly includes a transmission module and a working module, wherein the transmission module provides power transmission for the working module; The transmission module comprises a transmission rod, the transmission rod rotates in the stud and the nut, and a disassembly groove is fixed on the transmission rod; The working module is movably connected to the transmission module.

[0007] Preferably, a rotation cavity is provided in the stud, and a penetrating working groove is also provided in the stud, and the working groove also penetrates the rotation cavity. An auxiliary hole is provided at the top of the nut, and the disassembly groove is located in the auxiliary hole.

[0008] Preferably, the working module includes a screw nut block, which slides in the stud, and two symmetrically arranged limiting elastic plates are installed on one end surface of the screw nut block, and an elastic sheet is also fixed between the two limiting elastic plates.

[0009] Preferably, the bottom side end surface of the limiting elastic plate is arc-shaped, the outermost width of the arc surface is smaller than the innermost width, and a plurality of saw teeth are arranged thereon. A step is also arranged in the middle of the limiting elastic plate, and the step is a step setting.

[0010] Preferably, the elastic sheet and the limiting elastic plate are elastic, a through hole is provided in the middle of the elastic sheet, and the transmission rod is located in the through hole.

[0011] Preferably, the working module also includes a fixed disk, which is fixed in the interior, and an end face slider and a threaded turntable are also provided in the fixed disk. There are at least two end face sliders, and the threaded turntable is fixed together with the transmission rod, and the end faces of the threaded turntable and the end face slider are connected.

[0012] Preferably, a locking plate is fixed on the end face slider, and at least two locking protrusion blocks are fixed on the end face of the locking plate away from the end face slider, and the locking protrusion blocks are arranged in a trapezoidal shape, and the maximum thickness of the trapezoid is less than the distance between two screw threads on the fastener, and the distance between two adjacent locking protrusion blocks is consistent with the distance between the two screw threads.

[0013] Preferably, the working module also includes a synchronization rod, which slides inside the transmission rod through a transmission spring, and a synchronization clamping rod and a nut block are movably connected to the synchronization rod. The synchronization clamping rod rotates on the synchronization rod, and the synchronization clamping rod extends to the outside on both sides. The outer peripheral side of the synchronization rod located on the lower side of the synchronization clamping rod is provided with a thread, and the nut block cooperates with it.

[0014] Preferably, two auxiliary plates are fixed on one end face of each of the synchronous clamping rods, a support rod is fixed between the two auxiliary plates, a clamping long rod is fixed on the outer peripheral side of the nut block, and the other end of the clamping long rod is located on the outside of the support rod.

[0015] Preferably, the stud is also provided with a main nut, and a clamping groove and a connecting groove are provided in the main nut, wherein two connecting grooves are provided and correspond to the synchronous clamping rod.

[0016] Compared with the prior art, the present invention provides a corrosion-resistant and shock-resistant fastener, which has the following beneficial effects: 1. The corrosion-resistant and earthquake-resistant fastener, through the setting of the above-mentioned working module, can increase the friction between the fastener and the connecting part through processes such as extrusion and limiting in various installation environments, so as to avoid the possibility of loosening of the fastener and achieve an earthquake-resistant effect.

[0017] 2. The corrosion-resistant and earthquake-resistant fastener can be disassembled and installed with special tools through the arrangement of nuts and disassembly and assembly grooves, thereby preventing others from disassembling it and affecting the normal operation of the high-speed rail.

[0018] 3. The corrosion-resistant and earthquake-resistant fastener can gather rainwater in the low-lying part of the water flow slope through the inclined water flow slope setting. The low-lying part is connected with the diversion hole, and the rainwater will flow to the outside through the diversion hole, which can effectively prevent rainwater from entering the inside of the fastener through the gap between the transmission rod and the nut, thereby causing corrosion to the inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of a half-section structure of a nut of the present invention; Figure 3 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention; Figure 4 For the present invention Figure 3 An enlarged structural diagram of the middle stud 10; Figure 5 This is a schematic diagram of the internal structure of Embodiment 2 of the present invention; Figure 6 For the present invention Figure 5 An enlarged structural diagram of the middle nut 20; Figure 7 This is a schematic diagram of the three-dimensional structure of the working module in the second embodiment of the present invention; Figure 8 This is a schematic diagram of the main structure of Embodiment 3 of the present invention; Fig. 9 This is a schematic diagram of the internal structure of Embodiment 3 of the present invention; Fig.10 Schematic diagram of the three-dimensional structure of the working module in Example 3 of the present invention; Fig.11 This is a schematic diagram of the nut structure of the present invention; Fig.12 This is a schematic diagram of the structure of the disassembly and assembly tool of the present invention; Fig.13 It is a schematic diagram of the structure of the disassembly and assembly tool of the present invention.

[0020] In the figure: 10, stud; 101, working groove; 102, rotating chamber; 20, nut; 201, auxiliary hole; 202, water flow slope; 203, diversion hole; 30, transmission rod; 301, disassembly and assembly groove; 302, transmission spring; 40, lead screw nut block; 401, limit elastic plate; 4011, sawtooth; 4012, first step; 402, elastic sheet; 50, fixed plate; 501, clamping position Plate; 5011, positioning protrusion block; 502, end face slider; 503, threaded turntable; 60, synchronization rod; 601, synchronization clamping rod; 6011, auxiliary plate; 6012, support rod; 602, nut block; 603, clamping long rod; 70, main nut; 701, clamping slide groove; 702, connecting groove; 80, handle; 81, outer disassembly cylinder; 82, inner disassembly rod; 83, disassembly spring. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1-11 As shown, it includes a stud 10 and a nut 20, which are fixed together, wherein the nut 20 is provided with a raised thread, and auxiliary components are also provided in the stud 10 and the nut 20, the auxiliary components include a transmission module and a working module, wherein the transmission module provides power transmission for the working module, a rotating chamber 102 is opened in the stud 10, and a penetrating working groove 101 is also opened in the stud 10, and the working groove 101 also penetrates the rotating chamber 102, an auxiliary hole 201 is opened at the top of the nut 20, and a disassembly groove 301 is located in the auxiliary hole 201, the transmission module includes a transmission rod 30, the transmission rod 30 rotates in the stud 10 and the nut 20, the disassembly groove 301 is fixed on the transmission rod 30, 30 rotates in the rotating chamber 102, and the working module is movably connected with the transmission module.

[0023] like Figure 2As shown, the bottom of the auxiliary hole 201 is provided with an upwardly protruding inclined surface, and the inclined surface is set as a water flow slope 202. At least two guide holes 203, preferably three, are also opened in the nut 20. The guide holes 203 are connected with the water flow slope 202 and are also connected with the outside world. When rainwater drops on the fastener, although the disassembly and assembly groove 301 itself has a sealing effect, rainwater may still enter the bottom of the auxiliary hole 201 through the gap of the disassembly and assembly groove 301. At this time, through the inclined water flow slope 202, rainwater can be gathered in the low-lying part of the water flow slope 202, and the low-lying part is connected with the guide holes 203. The rainwater will flow to the outside through the guide holes 203, which can effectively prevent rainwater from entering the inside of the fastener through the gap between the transmission rod 30 and the nut 20, thereby causing corrosion to the inside. Example 1

[0024] like Figure 3 and Figure 4 As shown, the working module includes a screw nut block 40, which slides in the stud 10. Two symmetrically arranged limiting elastic plates 401 are installed on one side end face of the screw nut block 40, and an elastic sheet 402 is fixed between the two limiting elastic plates 401. The bottom side end face of the limiting elastic plate 401 is an arc-shaped setting, and the outermost width of the arc-shaped surface is smaller than the innermost width. A plurality of serrations 4011 are arranged thereon, and the outer width and the serrations 4011 can form a serrated blade surface, making it easier to cut the thread teeth. A first step 4012 is also arranged in the middle of the limiting elastic plate 401, preferably close to the thread. On one side of the lever nut block 40, a first step 4012 is a first step setting. The stepped setting can limit the position of the limiting elastic plate 401 by the steps after the fasteners are installed. The elastic sheet 402 and the limiting elastic plate 401 are elastic, wherein the limiting elastic plate 401 and the elastic sheet 402 are both in a contracted and force-accumulating state in the initial state. A through hole is opened in the middle of the elastic sheet 402, and the transmission rod 30 is located in the through hole. In this embodiment, the outer peripheral side of the transmission rod 30 is threaded, and the screw nut block 40 and the transmission rod 30 are threadedly matched, so that when the transmission rod 30 rotates, the screw nut block 40 can be driven to slide up and down.

[0025] Working principle: when in use, the fastener can be directly screwed and installed on the high-speed railway connection piece that needs to be locked. After the stud 10 is installed, the transmission rod 30 can continue to drive the screw nut block 40 to move downward by rotating the disassembly and assembly groove 301. At this time, the first step 4012 contacts the inner wall of the stud 10, so it is easier to slide. When the screw nut block 40 drives the limiting elastic plate 401 to move downward until it is free from the restriction of the stud 10, that is, the limiting elastic plate 401 moves to the working groove 101, after the limiting elastic plate 401 is free from the restriction, the fastener pops out under the action of the elastic sheet 402 and its own elastic force, so that the serration 4011 abuts against the thread teeth in the high-speed railway connection piece, and then the transmission rod 30 is continued to be rotated, and the thread teeth here can be cut by the serration 4011, so that the limiting elastic plate 401 is stuck. At this incision, the positioning of the limiting elastic plate 401 can prevent the fastener from rotating due to vibration, thereby preventing the fastener from loosening, thereby achieving an anti-seismic effect. In addition, since the limiting elastic plate 401 pops out, when the transmission rod 30 is rotated in the opposite direction to pull the limiting elastic plate 401 out of the stuck thread, the first step 4012 on the limiting elastic plate 401 will be stuck on the side wall of the working groove 101 during the movement, making it impossible to be pulled, and at this time, the serration 4011 is still stuck on the thread of the connector, making it impossible to be disassembled unless destructive and violent disassembly is performed. Therefore, the high-speed rail connector can be limited by the serration 4011 in the limiting elastic plate 401, thereby blocking the fastener and preventing it from rotating, effectively preventing it from loosening due to vibration, thereby achieving an anti-seismic effect. Example 2

[0026] like Figure 5-7As shown, the working module also includes a fixed disk 50, which is fixed inside 10. An end face slider 502 and a threaded rotating disk 503 are also provided inside the fixed disk 50. The end face slider 502 is provided with at least two, and the threaded rotating disk 503 is fixed together with the transmission rod 30. The end faces of the threaded rotating disk 503 and the end face slider 502 are connected. The end faces where the end face slider 502 and the threaded rotating disk 503 are connected are provided with end face threads that cooperate with each other, so that when the threaded rotating disk 503 rotates, it drives All end surface sliders 502 extend outward at the same time, and can produce a self-locking phenomenon through the end surface thread matching. A locking plate 501 is fixed on the end surface slider 502. At least two locking protrusions 5011 are fixed on the end surface of the locking plate 501 away from the end surface slider 502. The locking protrusions 5011 are set in a trapezoidal shape. The material of the locking protrusions 5011 can be rubber and resin, and can also be iron products. The surface is sprayed with rubber coating, so that it can produce a small range of deformation, (in the fastener After the screw is screwed into the high-speed railway connecting piece, one side end face of the threaded tooth of the fastener will first abut against one side end face of the threaded tooth of the connecting piece, and the other side of the two will form a certain gap with the adjacent threaded teeth), so that it can fill the gap when it is stuck in the threaded tooth, and the positioning protrusion block 5011 is set in a trapezoidal shape, so that it can fill the threaded teeth with different gaps, and the maximum thickness of the trapezoid is less than the distance between the two threaded teeth on the fastener, and the distance between two adjacent positioning protrusion blocks 5011 is consistent with the distance between the two threaded teeth. In addition, the positioning protrusion block 5011 is set in a straight line, and the threaded teeth are set in an oblique line. Therefore, when the positioning protrusion block 5011 fills the gap in the threaded teeth, it can simultaneously contact the threaded tooth end faces on the upper and lower sides of the gap, so that when the fastener drives the positioning plate 501 to rotate, the threaded teeth on the upper and lower sides will be restricted by the positioning protrusion block 5011 at the same time, and will not rotate, which can effectively prevent the fastener from loosening due to vibration and achieve an anti-seismic effect.

[0027] Working principle: When in use, the fastener can be screwed directly onto the high-speed rail connector that does not need to be locked. After the fastener is screwed into the high-speed rail connector, one side end face of the fastener thread will first abut against one side end face of the connector thread, and the other side of the two will form a certain gap with the adjacent thread teeth. After the stud 10 is installed, the transmission rod 30 can continue to rotate the disassembly groove 301 to drive the fixed disk 50 to rotate, so that the threaded turntable 503 rotates in the fixed disk 50, and the threaded turntable 50 3, the end surface slider 502 can be driven to extend outward at the same time, and the locking plate 501 can be pushed outward at this time. At this time, the thinner end of the trapezoidal locking protrusion block 5011 first enters the above-mentioned gap. As the locking plate 501 continues to move, the locking protrusion block 5011 will gradually fill and abut against the end surfaces of the thread teeth on both sides of the gap. When the fastener rotates in the opposite direction, it is necessary to first overcome the friction generated by the locking protrusion block 5011 and the end surfaces on both sides of the gap, so as to avoid the fastener from loosening and achieve an anti-seismic effect.

[0028] When the fastener needs to be removed, the screw 30 can be screwed in the reverse direction to make the end surface slider 502 drive the locking plate 501 to retract inward, and the locking protrusion block 5011 can be pulled out from the above gap. At this time, the fastener can be removed normally, and the above process can be repeated for the next installation. Example 3

[0029] like Figure 8-11As shown, the stud 10 is also provided with a main nut 70, and a clamping groove 701 and a connecting groove 702 are provided in the main nut 70, wherein two connecting grooves 702 are provided, and a plurality of notches can be provided at the bottom of the main nut 70 so that it can cooperate with the clamping long rod 603. The working module also includes a synchronization rod 60, and the synchronization rod 60 can only slide in the transmission rod 30 through the transmission spring 302, and cannot rotate. Moreover, through the setting of the transmission spring 302, the working module can move synchronously with the main nut 70, regardless of the main nut The nut 70 can be clamped by the working module at any position of the stud 10, so that it can adapt to the connection parts of most thicknesses. The synchronous clamping rod 601 and the nut block 602 are movably connected to the synchronous rod 60. The synchronous clamping rod 601 can only rotate on the synchronous rod 60. The synchronous clamping rod 601 extends to the outside on both sides. The outside part can cooperate with the connecting groove 702 first, and can also enter the clamping slide groove 701. The outer peripheral side of the synchronous rod 60 located at the lower side of the synchronous clamping rod 601 is provided with a thread. The nut block 602 cooperates with it, and two auxiliary plates 6011 are fixed on one end surface of each synchronous clamping rod 601, and a support rod 6012 is fixed between the two auxiliary plates 6011. A clamping long rod 603 is fixed on the outer peripheral side of the nut block 602, wherein the clamping long rod 603 is provided with anti-slip stripes or sprayed with anti-slip paint, and the other end of the clamping long rod 603 is located on the outside of the support rod 6012, and there is a bend in the middle of the clamping long rod 603, and this place has elasticity. Preferably, the clamping long rod 6 03 can also be divided into two parts, which are connected by a rotating pin. A torsion spring is installed on the rotating pin to reset the clamping long rod 603. The long clamping rod 603 is extended outward under the restriction of the support rod 6012 by the rotation of the synchronous rod 60. The main nut 70 can be clamped in the middle by cooperating with the synchronous clamping rod 601. Moreover, as the main nut 70 rotates, it will be clamped tighter and tighter, causing greater friction, thereby limiting the relative rotation of the main nut 70, thereby reducing the possibility of loosening of the main nut 70.

[0030] Working principle: When in use, when the high-speed rail connector needs to be fixed by the combination of bolts and nuts, the main nut 70 can be screwed onto the stud 10. During the screwing process, the main nut 70 will abut against the synchronous clamping rod 601. When the main nut 70 is rotated to make the connecting groove 702 correspond to the synchronous clamping rod 601, the synchronous clamping rod 601 can fall into the clamping slide groove 701 and rotate inside it, which can prevent the synchronous clamping rod 601 from affecting the fastening performance of the main nut 70. When the main nut 70 and the stud 10 are rotated relative to each other until they are completely installed on the high-speed rail connector, and then the transmission rod 30 is continued to be rotated to drive the synchronous rod 60 to rotate, thereby driving the nut block 602 to move downward, and the movement of the nut block 602 drives the clamping long rod 603 to move synchronously, and through the restriction of the support rod 6012, The clamping long rod 603 can be extended to the outside on both sides, and its end will move upward during the extension process until the support rod 6012 abuts against the lower end surface of the main nut 70. At this time, the main nut 70 can be clamped by the cooperation of the synchronous clamping rod 601 and the clamping long rod 603. When the main nut 70 wants to rotate, it needs to overcome the friction and restriction generated by the clamping long rod 603 and the synchronous clamping rod 601 before it can rotate. Therefore, the possibility of the nut loosening can be reduced by limiting the rotation of the main nut 70, thereby achieving an anti-seismic effect. Example 4

[0031] like Fig.12 and Fig.13 As shown, a special tool that can be used for disassembling and assembling the above-mentioned bolts includes a handle 80, an outer disassembly cylinder 81 and an inner disassembly rod 82, wherein the handle 80 is fixed together with the outer disassembly cylinder 81, wherein the inner disassembly rod 82 is fixed with a mounting plate, and the inner disassembly rod 82 is inside the outer disassembly cylinder 81, and is fixed in the outer disassembly cylinder 81 by the mounting plate and the disassembly spring 83, and there are limiting grooves and limiting protrusions between the outer disassembly cylinder 81 and the inner disassembly rod 82, so that the two can only slide relative to each other and cannot produce relative rotation, wherein the bottom of the outer disassembly cylinder 81 is provided with an opening that matches the nut 20, and the bottom of the inner disassembly rod 82 is provided with a protrusion that matches the disassembly groove 301, and in a normal state, the inner disassembly rod 82 is inside the outer disassembly cylinder 81 and extends to the outside.

[0032] Working principle: When in use, it is necessary to screw the stud 10 first, then the inner disassembly rod 82 needs to be stuck on the disassembly groove 301, and pressure needs to be applied to the handle 80 to compress the disassembly spring 83, so that the outer disassembly tube 81 can be directly stuck on the nut 20, and the bolt can be rotated for installation and disassembly as a whole. When the disassembly groove 301 needs to be rotated alone, the pressure can be released, and under the elastic force of the disassembly spring 83, the outer disassembly tube 81 bounces up and separates from the nut 20. At this time, the disassembly groove 301 can be rotated alone by the inner disassembly rod 82, and the installation and disassembly of the working module can be completed alone.

[0033] In summary, the corrosion-resistant and earthquake-resistant fastener, through the setting of the above-mentioned working module, can increase the friction between the fastener and the connecting part through processes such as extrusion limiting in a variety of installation environments, so as to avoid the possibility of loosening of the fastener and achieve an earthquake-resistant effect; and through the setting of the nut 20 and the disassembly and assembly groove 301, it can be disassembled and installed with special tools to avoid being disassembled by others, thereby preventing others from affecting the normal operation of the high-speed rail.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] 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 corrosion-resistant and anti-vibration fastener, comprising a stud (10) and a nut (20), wherein the stud (10) and the nut (20) are fixed together, characterized in that: Auxiliary components are also provided in the stud (10) and the nut (20); The auxiliary assembly includes a transmission module and a working module, wherein the transmission module provides power transmission for the working module; The transmission module comprises a transmission rod (30), the transmission rod (30) rotates inside the stud (10) and the nut (20), and a disassembly groove (301) is fixed on the transmission rod (30); The working module is movably connected to the transmission module.

2. A corrosion-resistant and earthquake-resistant fastener according to claim 1, characterized in that: A rotation cavity (102) is provided in the stud (10), and a penetrating working groove (101) is also provided in the stud (10), and the working groove (101) also penetrates the rotation cavity (102). An auxiliary hole (201) is provided at the top end of the nut (20), and the disassembly groove (301) is located in the auxiliary hole (201).

3. The corrosion-resistant and anti-vibration fastener according to claim 1, characterized in that: The working module comprises a screw nut block (40), the screw nut block (40) slides in the stud (10), one end surface of the screw nut block (40) is mounted with two symmetrically arranged limiting elastic plates (401), and an elastic sheet (402) is fixed between the two limiting elastic plates (401).

4. A corrosion-resistant and anti-vibration fastener according to claim 3, characterized in that: The bottom side end surface of the limiting elastic plate (401) is arranged in an arc shape, the width of the outermost side of the arc surface is smaller than the width of the innermost side, and a plurality of saw teeth (4011) are arranged on the arc surface. A step (4012) is also arranged in the middle of the limiting elastic plate (401), and the step (4012) is arranged in a step shape.

5. The corrosion-resistant and anti-vibration fastener according to claim 4, characterized in that: The elastic sheet (402) and the position-limiting elastic plate (401) are elastic, a through hole is provided in the middle of the elastic sheet (402), and the transmission rod (30) is located in the through hole.

6. The corrosion-resistant and anti-vibration fastener according to claim 1, characterized in that: The working module further comprises a fixed disk (50), wherein the fixed disk (50) is fixed inside the (10), and an end surface slider (502) and a threaded rotating disk (503) are also provided inside the fixed disk (50), and at least two end surface sliders (502) are provided, and the threaded rotating disk (503) is fixed together with the transmission rod (30), and the end surfaces of the threaded rotating disk (503) and the end surface slider (502) are connected.

7. The corrosion-resistant and anti-vibration fastener according to claim 6, characterized in that: A locking plate (501) is fixed on the end surface slider (502), and at least two locking protrusions (5011) are fixed on the end surface of the locking plate (501) away from the end surface slider (502), wherein the locking protrusions (5011) are arranged in a trapezoidal shape, wherein the maximum thickness of the trapezoid is less than the distance between two screw threads on the fastener, and the distance between two adjacent locking protrusions (5011) is consistent with the distance between the two screw threads.

8. The corrosion-resistant and anti-vibration fastener according to claim 1, characterized in that: The working module further comprises a synchronization rod (60), wherein the synchronization rod (60) slides inside the transmission rod (30) via a transmission spring (302), a synchronization clamping rod (601) and a nut block (602) are movably connected to the synchronization rod (60), the synchronization clamping rod (601) rotates on the synchronization rod (60), the synchronization clamping rod (601) extends to the outside on both sides, and a thread is provided on the outer peripheral side of the synchronization rod (60) located below the synchronization clamping rod (601), and the nut block (602) cooperates with the thread.

9. The corrosion-resistant and anti-vibration fastener according to claim 8, characterized in that: Two auxiliary plates (6011) are fixed on one end surface of each synchronous clamping rod (601), a support rod (6012) is fixed between the two auxiliary plates (6011), a clamping long rod (603) is fixed on the outer peripheral side of the nut block (602), and the other end of the clamping long rod (603) is located on the outside of the support rod (6012).

10. The corrosion-resistant and anti-vibration fastener according to claim 8, characterized in that: The stud (10) is also provided with a main nut (70), and a clamping groove (701) and a connecting groove (702) are provided in the main nut (70), wherein two connecting grooves (702) are provided and correspond to the synchronous clamping rod (601).

Citation Information

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