Anti-seismic and anti-falling fastener

Abstract

The utility model provides an anti-seismic and anti-falling fastener. The anti-seismic and anti-falling fastener comprises a bolt, a nut, a clamping structure, an anti-loosening structure and an unlocking structure. The clamping structure comprises a clamping plate hinged to the bolt, and the clamping plate is used for being clamped to the first connecting part. The anti-loosening structure comprises an inserting block which is in radial sliding connection with the bolt, and the inserting block is used for being inserted into the inner circumference of the nut. The unlocking structure comprises an unlocking rod and a plurality of traction ropes, the unlocking rod is rotationally connected into the bolt, the traction ropes are connected with the clamping plates and the insertion blocks in a one-to-one correspondence mode, and the traction ropes are connected with the unlocking rod. According to the anti-seismic and anti-disengaging fastener, through the combined action of the two aspects of limiting rotation of the bolt through the clamping structure and limiting rotation of the nut through the anti-disengaging structure, bidirectional anti-disengaging is achieved, the stability and reliability of connection are effectively improved, locking of the clamping structure and the anti-disengaging structure can be rapidly relieved through the unlocking structure, and the anti-seismic and anti-disengaging fastener is convenient to use. And operation is easy and convenient, dismounting of the fastener is convenient to achieve, and the practicability of the fastener is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fastener, specifically relates to an anti-shock and anti-loose fastener. BACKGROUND

[0002] Fastener is the key component for realizing structure connection, wherein, bolt and nut combination is a very common connection mode. In actual application scene, many connection parts are in frequent and continuous vibration environment for a long time, vibration will promote relative displacement between bolt and nut, resulting in that the fastening state constructed by initial installation is gradually destroyed. With the continuous action of alternating stress caused by vibration, the friction between threads gradually reduces, the nut slowly rotates in the vibration process, and finally causes loosening phenomenon, which undoubtedly brings great security risk to the whole structure or equipment.

[0003] In the prior art, a clamping structure is usually arranged between the bolt and the nut to prevent the nut from loosening. However, since there is an installation gap between the bolt and the bolt hole on the connecting part, vibration will increase the shaking frequency of the bolt in the bolt hole, which directly affects the stability of the bolt connection. Moreover, the clamping structure can only achieve the purpose of anti-loosening through one-way tightening of the nut, and when the connection part needs to be disassembled, the clamping structure has to be damaged to loosen the fastening assembly, which reduces the practicability of the fastener. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides an anti-shock and anti-loose fastener, which aims to solve the technical problems of bolt shaking and nut loosening caused by vibration in the prior art, and the technical problem of the clamping structure for preventing the nut from rotating in the prior art being inconvenient for fastener disassembly.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of: providing an anti-shock and anti-loose fastener, comprising a bolt for connecting a first connecting part and a second connecting part, and a nut threadedly connected to the outer end of the bolt, further comprising:

[0006] A clamping structure comprising a clamping plate hinged to the peripheral wall of the bolt, the clamping plate being used for clamping on the first connecting part to limit the rotation of the bolt;

[0007] A loosening prevention structure comprising an insertion block radially slidingly connected to the bolt, the insertion block being used for inserting into the inner periphery of the nut to limit the rotation of the nut; and

[0008] An unlocking structure comprising an unlocking rod and a plurality of pull ropes, the unlocking rod being rotationally connected to the inside of the bolt, the unlocking rod extending along the central axis direction of the bolt, the plurality of pull ropes being connected to the clamping plate and the insertion block one by one, the pull ropes being arranged through the peripheral wall of the bolt and connected to the unlocking rod.

[0009] In a possible implementation, the clamping structure further comprises:

[0010] a clamping ring connected to the side wall of the first connecting part and sleeved on the outer periphery of the bolt, an inner peripheral wall of the clamping ring being provided with a plurality of clamping teeth protruding therefrom, the plurality of clamping teeth being arranged at intervals along the circumference of the clamping ring; and

[0011] a first elastic member connected between the outer peripheral wall of the bolt and the clamping plate, for elastically pushing the clamping plate outward to be clamped between two adjacent clamping teeth.

[0012] In a possible implementation, the side wall of the nut is provided with a limiting ring, the limiting ring being sleeved on the outer periphery of the bolt, an inner peripheral wall of the limiting ring being provided with a plurality of insertion teeth protruding therefrom, the plurality of insertion teeth being arranged at intervals along the circumference of the limiting ring, the insertion block being adapted to be inserted between two adjacent insertion teeth.

[0013] In some embodiments, the anti-loosening structure further comprises:

[0014] a sliding seat radially slidingly connected to the bolt, the insertion block being radially slidingly connected to the outer side wall of the sliding seat, and the pulling rope being connected to the sliding seat; and

[0015] a second elastic member connected between the bolt and the sliding seat, for elastically pushing the sliding seat outward so that the insertion block is inserted into the inner periphery of the nut.

[0016] In some embodiments, the sliding seat extends along the axial direction of the bolt, and a plurality of insertion blocks are arranged at intervals along the extension direction of the sliding seat, and a third elastic member is connected between each insertion block and the sliding seat.

[0017] In some embodiments, the outer peripheral wall of the bolt is provided with a sliding groove with an opening facing the outer peripheral wall, the sliding seat and the sliding groove slidingly fit together, and the second elastic member is connected between the groove bottom wall of the sliding groove and the inner side wall of the sliding seat.

[0018] In a possible implementation, the bolt is provided with a cylindrical cavity extending along the axial direction thereof, the unlocking lever is rotationally connected within the cylindrical cavity, and the inner peripheral wall of the cylindrical cavity and the outer peripheral wall of the unlocking lever have a gap for accommodating the pulling rope.

[0019] In some embodiments, the bolt is provided with a rotating cavity in communication with the cylindrical cavity, and the inner end of the unlocking lever is connected with a positioning block, the positioning block and the rotating cavity rotationally fit together.

[0020] In some embodiments, a guide groove is formed on the hexagonal head end surface of the bolt, the guide groove is communicated with the cylindrical cavity, a guide ring is arranged on the peripheral wall of the unlocking lever, and the guide ring is rotatably connected in the guide groove.

[0021] In a possible implementation, an outer end of the unlocking lever is hingedly connected with a positioning pull ring, a positioning column is arranged on the hexagonal head end surface of the bolt, and the positioning pull ring is used to vertically swing to be clamped on the positioning column when the unlocking lever is rotated to the unlocking state.

[0022] The anti-shock and anti-loose fastener has the advantages that: the anti-shock and anti-loose fastener is hingedly connected with the clamping plate and the first connecting part, the rotation of the bolt is limited, the bolt shaking phenomenon caused by vibration is effectively reduced, and the stability of the bolt connection is enhanced; meanwhile, the plug radially and slidably connected to the bolt is inserted into the inner periphery of the nut, the rotation of the nut is limited, the nut is prevented from loosening, and the safety hidden danger is reduced; on this basis, the unlocking lever is rotated, the pulling rope is wound along the peripheral wall of the unlocking lever, the clamping plate is swung to the side of the bolt to be separated from the first connecting part, the plug is radially slid to the inside of the bolt to be separated from the nut, and then the fastener is conveniently disassembled without damaging the structure, the fastener can be repeatedly used, and the use cost is saved.

[0023] Compared with the prior art, the anti-shock and anti-loose fastener has the advantages that: the bolt rotation is limited by the clamping structure, the nut rotation is limited by the anti-loose structure, the two aspects jointly act, the bidirectional anti-loose of the anti-shock and anti-loose fastener is realized, the stability and reliability of the connection are effectively improved, and the safety hidden danger caused by vibration is reduced. Meanwhile, the clamping structure and the anti-loose structure are limited to the bolt and the nut by the unlocking structure, the operation is simple and convenient, the structure does not need to be damaged or a complex tool is not needed, the fastener is conveniently disassembled, and the practicability of the fastener is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor.

[0025] Figure 1 The mounting state structure schematic diagram of the anti-shock and anti-loose fastener provided by the present application is shown in the figure.

[0026] Figure 2 The mounting state structure schematic diagram of the anti-shock and anti-loose fastener provided by the present application is shown in the figure. Figure 1Enlarged structural diagram of section A in the middle;

[0027] Figure 3 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the side sectional view of the structure;

[0028] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged structural diagram of section B;

[0029] Figure 5 This is an embodiment of the present utility model. Figure 3 Schematic diagram of the cross-sectional structure of the middle CC line;

[0030] Figure 6 This is an embodiment of the present utility model. Figure 3 Schematic diagram of the cross-sectional structure of the DD line.

[0031] The following are the labeling elements in the figure:

[0032] 1. Bolt; 11. Sliding groove; 12. Cylindrical cavity; 13. Rotating cavity; 14. Guide groove; 15. Positioning post; 16. Mounting sleeve; 2. Nut; 21. Limiting ring; 211. Insertion tooth; 3. Snap-fit ​​structure; 31. Clamping plate; 32. Clamping ring; 321. Clamping tooth; 33. First elastic element; 4. Anti-loosening structure; 41. Insertion block; 42. Sliding seat; 43. Second elastic element; 44. Third elastic element; 5. Unlocking structure; 51. Unlocking rod; 511. Positioning block; 512. Guide ring; 513. Positioning pull ring; 52. Pull rope; 10. First connecting part; 20. Second connecting part; L. Gap. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on another element or indirectly on another element. It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", and the like, indicate directions or positions relative to the directions or positions shown in the drawings, and are used for convenience and simplicity of description and illustration, and are not intended to indicate or imply absolute specific directions, configurations, or operation of the device or element indicated thereby, and therefore cannot be construed as limiting the present application. The terms "first", "second" are used only for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated thereby. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or several features. In the description of the present application, the meaning of "a plurality of" or "several" is two or more, unless otherwise specifically limited.

[0035] Please refer to Figure 1 to Figure 6 The anti-shock anti-loose fastener provided by the utility model, through the clamping plate 31 hinged on the outer peripheral wall of the bolt 1 clamping with the first connecting part 10, the bolt 1 is limited to rotate, the phenomenon of the bolt 1 shaking caused by the vibration can be effectively reduced, and the stability of the bolt 1 connection is enhanced; at the same time, through the plug block 41 radially slidingly connected on the bolt 1 being inserted into the inner periphery of the nut 2, the nut 2 is limited to rotate, the nut 2 can be prevented from loosening, and the security risk is reduced; on this basis, through rotating the unlocking rod 51, the pulling rope 52 can be wound along the peripheral wall of the unlocking rod 51, so that the clamping plate 31 swings to the side of the bolt 1 to be separated from the clamping with the first connecting part 10, and the plug block 41 is radially slid to the inside of the bolt 1 to be separated from the insertion with the nut 2, so that the disassembly of the fastener is facilitated, and the structure does not need to be damaged, so that the fastener can be repeatedly used, and the use cost is saved.

[0036] The anti-shock anti-loose fastener provided by the utility model, through the clamping plate 31 hinged on the outer peripheral wall of the bolt 1 clamping with the first connecting part 10, the bolt 1 is limited to rotate, the phenomenon of the bolt 1 shaking caused by the vibration can be effectively reduced, and the stability of the bolt 1 connection is enhanced; at the same time, through the plug block 41 radially slidingly connected on the bolt 1 being inserted into the inner periphery of the nut 2, the nut 2 is limited to rotate, the nut 2 can be prevented from loosening, and the security risk is reduced; on this basis, through rotating the unlocking rod 51, the pulling rope 52 can be wound along the peripheral wall of the unlocking rod 51, so that the clamping plate 31 swings to the side of the bolt 1 to be separated from the clamping with the first connecting part 10, and the plug block 41 is radially slid to the inside of the bolt 1 to be separated from the insertion with the nut 2, so that the disassembly of the fastener is facilitated, and the structure does not need to be damaged, so that the fastener can be repeatedly used, and the use cost is saved.

[0037] Compared with the prior art, the anti-seismic anti-disengagement fastener provided by the utility model realizes bidirectional anti-loosening of the anti-seismic anti-disengagement fastener through the joint action of the clamping structure 3 limiting the rotation of the bolt 1 and the anti-loosening structure 4 limiting the rotation of the nut 2, effectively improves the stability and reliability of the connection, and reduces the security risks caused by vibration. Meanwhile, the locking of the bolt 1 and the nut 2 by the clamping structure 3 and the anti-loosening structure 4 can be quickly released through the unlocking structure 5, and the operation is simple and convenient, without the need to damage the structure or use complex tools, so that the fastener can be conveniently disassembled later, and the practicability of the fastener is improved.

[0038] In the embodiment, the unlocking rod 51 is arranged inside the bolt 1 along the central axis direction of the bolt 1, the internal space of the bolt 1 is fully utilized, and the structure of the entire anti-seismic anti-disengagement fastener is more compact. The clamping plate 31 and the insertion block 41 are connected with the unlocking rod 51 through the pulling rope 52, and the clamping structure 3 and the anti-loosening structure 4 can be simultaneously unlocked by only rotating the unlocking rod 51. The pulling rope 52 has high flexibility and strength, and can maintain good working performance in the long-term use process, effectively avoiding the problem of unlocking function failure caused by loose or damaged connection.

[0039] Specifically, the clamping plate 31 and the insertion block 41 are arranged at least one in the circumferential direction of the bolt 1, a plurality of mounting holes are formed in the side wall of the bolt 1 corresponding to the positions of the clamping plate 31 and the insertion block 41, the pulling rope 52 is arranged in the mounting hole, and the outer end of the pulling rope 52 is connected with the clamping plate 31 or the insertion block 41, and the inner end of the pulling rope 52 is connected with the side wall of the unlocking rod 51. When the unlocking rod 51 is rotated, the inner end of the pulling rope 52 is gradually wound along the side wall of the unlocking rod 51, so that the outer end of the pulling rope 52 gradually pulls the clamping plate 31 and the insertion block 41 to the center of the bolt 1, and then the clamping structure 3 and the anti-loosening structure 4 are unlocked.

[0040] Further, the inner and outer ends of the mounting hole are provided with a transition fillet to avoid scratching the pulling rope 52.

[0041] In some embodiments, the clamping structure 3 can adopt the structure as shown in Figure 3 and Figure 5 . Referring to Figure 3 and Figure 5 , the clamping structure 3 further comprises a clamping ring 32 and a first elastic member 33, the clamping ring 32 is connected to the side wall of the first connecting part 10 and is sleeved on the outer periphery of the bolt 1, a plurality of clamping teeth 321 protrudingly arranged are arranged on the inner periphery wall of the clamping ring 32, and the plurality of clamping teeth 321 are arranged at intervals in the circumferential direction of the clamping ring 32; the first elastic member 33 is connected between the outer periphery wall of the bolt 1 and the clamping plate 31, and is used for elastically pushing the clamping plate 31 outward to be clamped between two adjacent clamping teeth 321.

[0042] It should be noted that the clamping ring 32 needs to be fixedly connected to the first connecting portion 10 to ensure stable clamping of the bolt 1. Specifically, a radially extending connecting plate can be provided on the outer peripheral wall of the clamping ring 32, and the connecting plate is connected to the side wall of the first connecting portion 10 by welding or riveting, so as to fix the clamping ring 32. When the fastener needs to be disassembled, the clamping ring 32 does not need to be disassembled from the first connecting portion 10, and only the bolt 1 nut 2 needs to be disassembled, thereby improving the value of repeated use of the fastener.

[0043] The plate surface of the clamping plate 31 can be provided in an arc-shaped curved shape, the arc-shaped inner concave surface of which faces the side of the bolt 1, and the first elastic member 33 is connected between the arc-shaped inner concave surface of the clamping plate 31 and the outer peripheral wall of the bolt 1. When the fastener is in the installed and locked state, under the action of the first elastic member 33, the clamping plate 31 is kept in a state of being opened outward, so that the outer end of the clamping plate 31 is stably clamped between two adjacent clamping teeth 321. When the clamping structure 3 needs to be unlocked, the unlocking lever 51 is rotated, the pulling rope 52 pulls the clamping plate 31 inward, the clamping plate 31 swings to the side of the bolt 1 about the hinge point, and the first elastic member 33 is compressed. At this time, the arc-shaped inner concave surface of the clamping plate 31 can better fit the outer peripheral wall of the bolt 1 to avoid the restriction of the clamping teeth 321.

[0044] Further, among the plurality of clamping plates 31 circumferentially provided on the bolt 1, at least one has an anticlockwise swing direction, and at least one has a clockwise swing direction, so as to achieve the purpose of preventing the bolt 1 from rotating in both forward and reverse directions. The outer end of the clamping plate 31 is also provided in a circular arc shape to reduce the friction between the clamping plate 31 and the clamping teeth 321. The clamping plate 31 can be directly hingedly connected to the outer peripheral wall of the bolt 1, or the clamping plate 31 can be hingedly connected to the outer periphery of the mounting sleeve 16, and then the mounting sleeve 16 is sleeved on the outer periphery of the bolt 1. The provision of the mounting sleeve 16 helps to reduce the connection difficulty of the clamping plate 31, but it needs to be noted that the mounting sleeve 16 and the bolt 1 need to be interference-fitted or fixedly connected to ensure that they do not rotate relative to each other.

[0045] In some embodiments, the above-mentioned nut 2 can adopt the structure as shown in Figure 3 , Figure 4 and Figure 6 . Referring to Figure 3 , Figure 4 and Figure 6 , a limiting ring 21 is provided on the side wall of the nut 2, the limiting ring 21 is sleeved on the outer periphery of the bolt 1, a plurality of protruding insertion teeth 211 are provided on the inner peripheral wall of the limiting ring 21, the plurality of insertion teeth 211 are spaced apart along the circumference of the limiting ring 21, and the insertion block 41 is adapted to be inserted between two adjacent insertion teeth 211.

[0046] Once the nut 2 is tightened to the correct position, the insert block 41 can be inserted between two adjacent insertion teeth 211, forming a mechanical locking structure. Under vibration, the nut 2 may tend to loosen due to vibration, but the mutual obstruction between the insert block 41 and the insertion teeth 211 restricts the rotation tendency of the nut 2, thereby effectively preventing the nut 2 from loosening and ensuring the reliability of the anti-vibration and anti-loosening fastener connection.

[0047] The insertion teeth 211 are evenly distributed along the circumference of the limiting ring 21, so that multiple insertion blocks 41 in the circumferential direction can be inserted and limited at multiple different positions, which increases the resistance to loosening of the nut 2 and further improves the anti-loosening effect.

[0048] In some embodiments, the anti-loosening structure 4 described above can be adopted as follows: Figure 3 , Figure 4 and Figure 6 The structure shown. See also Figure 3 , Figure 4 and Figure 6 The anti-loosening structure 4 also includes a sliding seat 42 and a second elastic element 43. The sliding seat 42 is radially slidably connected to the bolt 1, and the insert 41 is radially slidably connected to the outer side wall of the sliding seat 42. The pull rope 52 is connected to the sliding seat 42. The second elastic element 43 is connected between the bolt 1 and the sliding seat 42 and is used to elastically push the sliding seat 42 outward so that the insert 41 is inserted into the inner circumference of the nut 2.

[0049] When installing nut 2, the sliding seat 42 can be pulled towards the axis of bolt 1 by unlocking rod 51 and pulling rope 52, and the second elastic element 43 can be compressed so that the insert 41 avoids the limiting ring 21, making it easier to tighten nut 2 into place. Then, the unlocking rod 51 is released. Under the elastic pushing action of the second elastic element 43, the sliding seat 42 and the insert 41 move outward synchronously, so that the insert 41 is inserted between the two corresponding insertion teeth 211, thereby achieving circumferential locking of nut 2.

[0050] Similarly, when it is necessary to remove nut 2, rotate the unlocking rod 51, pull the rope 52 to pull the sliding seat 42 inward, so that the insert block 41 disengages from the insert tooth 211, and the nut 2 can be loosened smoothly.

[0051] In some possible embodiments, the sliding seat 42 extends along the axial direction of the bolt 1, and multiple inserts 41 are spaced apart along the extension direction of the sliding seat 42, with a third elastic element 44 connected between each insert 41 and the sliding seat 42.

[0052] For the first connecting part 10 and the second connecting part 20 with different thicknesses, the axial position of the nut 2 screwed into the bolt 1 is different. Therefore, multiple inserts 41 need to be set along the axial direction of the bolt 1 to accommodate the nut 2 at different positions.

[0053] Specifically, after the nut 2 is screwed into place, the second elastic member 43 elastically pushes the sliding seat 42 outward, at the same time, the third elastic member 44 further elastically pushes the plug block 41 outward, so that the plug block 41 aligned with the limiting ring 21 can be inserted into the plug teeth 211 to limit the nut 2 in the circumferential direction, at the same time, the plug block 41 located outside the limiting ring 21 abuts against the internal thread of the nut 2 under the action of the third elastic member 44, which also increases the friction of the nut 2 in rotation, thereby helping to improve the reliability of the threaded connection, in addition, the plug block 41 located inside the limiting ring 21 also abuts against the inner hole wall of the second connecting portion 20 under the action of the third elastic member 44, which also increases the friction of the bolt 1 in rotation, thereby further improving the stability of the fastener connection.

[0054] In some possible embodiments, the circumferential wall of the bolt 1 is provided with a sliding groove 11 with an opening facing the outer circumferential wall, and the sliding seat 42 is in sliding fit with the sliding groove 11, and the second elastic member 43 is connected between the groove bottom wall of the sliding groove 11 and the inner side wall of the sliding seat 42.

[0055] The sliding groove 11 is formed in the circumferential wall of the bolt 1 and extends along the axial direction of the bolt 1, and the size of the sliding groove 11 matches that of the sliding seat 42, thereby providing sufficient installation space for the sliding seat 42 and the second elastic member 43 without increasing the radial dimension of the fastener, so that the overall structure of the fastener is more compact. At the same time, the sliding groove 11 provides precise sliding guide for the sliding seat 42, which can effectively prevent the sliding seat 42 from deviating or shaking during the pulling sliding process.

[0056] In some embodiments, the bolt 1 and the unlocking rod 51 adopt the structure as shown in Figure 3 to Figure 6 . Referring to Figure 3 to Figure 6 , the bolt 1 is provided with a cylindrical cavity 12 extending along the axial direction thereof, the unlocking rod 51 is rotationally connected in the cylindrical cavity 12, and the inner circumferential wall of the cylindrical cavity 12 and the outer circumferential wall of the unlocking rod 51 have a gap L for accommodating the pulling rope 52.

[0057] In this embodiment, the gap L matches the diameter of the pulling rope 52, thereby providing a clear running path for the pulling rope 52, so that the pulling rope 52 can be orderly wound along the outer circumferential wall of the unlocking rod 51 when the unlocking rod 51 rotates, avoiding the pulling rope 52 from being crossed and knotted, thereby ensuring that the unlocking structure 5 can normally play a role and effectively unlock the clamping structure 3 and the anti-loose structure 4.

[0058] In some embodiments, referring to Figure 3 , the bolt 1 is internally provided with a rotating cavity 13 in communication with the cylindrical cavity 12, and the inner end of the unlocking rod 51 is connected with a positioning block 511, and the positioning block 511 is in rotational fit with the rotating cavity 13.

[0059] The inner diameter of the rotating cavity 13 is larger than the inner diameter of the cylindrical cavity 12, the positioning block 511 is in rotating cooperation with the rotating cavity 13, which not only provides rotating support for the unlocking rod 51, but also effectively prevents the unlocking rod 51 from jumping in the bolt 1 when subjected to vibration, avoiding the unlocking rod 51 from being pulled out of the cylindrical cavity 12.

[0060] In some embodiments, referring to Figure 3 , the hexagonal head end surface of the bolt 1 is provided with a guide groove 14 opening towards the outer end surface, the guide groove 14 is in communication with the cylindrical cavity 12, and the peripheral wall of the unlocking rod 51 is provided with a guide ring 512, which is in rotating connection in the guide groove 14.

[0061] The inner diameter of the guide groove 14 is also larger than the inner diameter of the cylindrical cavity 12, and the guide ring 512 is in rotating cooperation with the guide groove 14 and the positioning block 511 is in rotating cooperation with the rotating cavity 13, so that both ends of the unlocking rod 51 are effectively supported in rotation, thereby increasing the stability of the unlocking rod 51 in the process of rotating unlocking.

[0062] In some embodiments, the above-mentioned unlocking rod 51 adopts the structure as shown in Figure 1 and Figure 2 . Referring to Figure 1 and Figure 2 , the outer end of the unlocking rod 51 is hingedly connected with a positioning pull ring 513, and the hexagonal head end surface of the bolt 1 is provided with a positioning column 15, and the positioning pull ring 513 is used to vertically swing to be clamped on the positioning column 15 when the unlocking rod 51 is rotated to the unlocking state.

[0063] When installing or dismounting the fastener, the clamping structure 3 and the anti-loosening structure 4 need to be in the unlocked state, that is, the unlocking rod 51 needs to be rotated to the unlocking state. In this embodiment, when the unlocking rod 51 is rotated to the unlocking state, the positioning pull ring 513 and the positioning column 15 are at the same radial angle, at this time, the positioning pull ring 513 is vertically swung around its hinge point to be sleeved on the outer periphery of the positioning column 15, so that the positioning column 15 and the positioning pull ring 513 form a clamping action, which can prevent the unlocking rod 51 from slipping back to rotate and reset due to accidental vibration, collision or other external force, and ensure that the clamping plate 31 and the plug-in block 41 remain in the unlocked state during operation, thereby facilitating subsequent dismounting or adjusting installation and other operations, and improving the convenience and efficiency of operation.

[0064] Specifically, the outer end of the unlocking rod 51 can be provided with a hexagonal head structure, which is convenient for the operator to rotate the unlocking rod 51. Further, a containing groove can be provided on the outer end surface of the hexagonal head of the unlocking rod 51, and the positioning pull ring 513 is hingedly arranged in the containing groove, which increases the overall compactness of the structure of the unlocking rod 51 and avoids interference between the positioning pull ring 513 and other components.

[0065] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An anti-vibration and anti-release fastener comprising a bolt (1) for connecting a first connecting part (10) and a second connecting part (20) and a nut (2) threaded on the outer end of the bolt (1), characterized in that, Also comprising: A clamping structure (3) comprising a clamping plate (31) hinged to the outer peripheral wall of the bolt (1), the clamping plate (31) being used for clamping on the first connecting part (10) to limit the rotation of the bolt (1); A anti-loosening structure (4) comprising an insertion block (41) radially slidingly connected to the bolt (1), the insertion block (41) being used for inserting into the inner periphery of the nut (2) to limit the rotation of the nut (2); And An unlocking structure (5) comprising an unlocking rod (51) and a plurality of pulling ropes (52), the unlocking rod (51) being rotationally connected to the bolt (1), the unlocking rod (51) extending along the central axis of the bolt (1), and the plurality of pulling ropes (52) being connected to the clamping plate (31) and the insertion block (41) one by one, the pulling rope (52) penetrating through the peripheral wall of the bolt (1) and being connected to the unlocking rod (51).

2. A shock-resistant, pull-resistant fastener as defined in claim 1, wherein The clamping structure (3) further comprises: A clamping ring (32) connected to the side wall of the first connecting part (10) and sleeved on the outer periphery of the bolt (1), the inner peripheral wall of the clamping ring (32) being provided with a plurality of clamping teeth (321) protruding, and the plurality of clamping teeth (321) being arranged at intervals along the circumference of the clamping ring (32); and A first elastic member (33) connected between the outer peripheral wall of the bolt (1) and the clamping plate (31), used for elastically pushing the clamping plate (31) outward to clamp between adjacent two clamping teeth (321).

3. A shock-resistant, pull-resistant fastener as defined in claim 1, wherein The side wall of the nut (2) is provided with a limiting ring (21), the limiting ring (21) is sleeved on the outer periphery of the bolt (1), the inner peripheral wall of the limiting ring (21) is provided with a plurality of insertion teeth (211) protruding, and the plurality of insertion teeth (211) are arranged at intervals along the circumference of the limiting ring (21), the insertion block (41) is adapted to be inserted between adjacent two insertion teeth (211).

4. A shock-resistant, pull-resistant fastener as defined in claim 3, wherein The anti-loosening structure (4) further comprises: A sliding seat (42) radially slidingly connected to the bolt (1), the insertion block (41) radially slidingly connected to the outer side wall of the sliding seat (42), and the pulling rope (52) connected to the sliding seat (42); and A second elastic member (43) connected between the bolt (1) and the sliding seat (42), used for elastically pushing the sliding seat (42) outward to make the insertion block (41) inserted into the inner periphery of the nut (2).

5. A shock-resistant, pull-resistant fastener according to claim 4, wherein The sliding seat (42) extends along the axial direction of the bolt (1), and a plurality of the insertion blocks (41) are arranged at intervals along the extension direction of the sliding seat (42), and a third elastic member (44) is connected between each of the insertion blocks (41) and the sliding seat (42).

6. A shock-resistant, pull-resistant fastener according to claim 5, wherein The peripheral wall of the bolt (1) is provided with a sliding groove (11) with an opening facing the outer peripheral wall, the sliding seat (42) is slidingly matched with the sliding groove (11), and the second elastic member (43) is connected between the groove bottom wall of the sliding groove (11) and the inner side wall of the sliding seat (42).

7. A shock-resistant, pull-resistant fastener as defined in claim 1, wherein The bolt (1) is provided with a cylindrical cavity (12) extending along the axial direction of the bolt (1), the unlocking lever (51) is rotationally connected in the cylindrical cavity (12), and a gap (L) for accommodating the pull rope (52) is formed between the inner circumferential wall of the cylindrical cavity (12) and the outer circumferential wall of the unlocking lever (51).

8. A shock-resistant, pull-resistant fastener according to claim 7, wherein The bolt (1) is provided with a rotating cavity (13) in communication with the cylindrical cavity (12), and the inner end of the unlocking lever (51) is connected with a positioning block (511) which is rotationally matched with the rotating cavity (13).

9. A shock-resistant, pull-resistant fastener according to claim 8, wherein The hexagonal head end surface of the bolt (1) is provided with a guide groove (14) with an opening facing the outer end surface, the guide groove (14) is in communication with the cylindrical cavity (12), the circumferential wall of the unlocking lever (51) is provided with a guide ring (512), and the guide ring (512) is rotationally connected in the guide groove (14).

10. A shock-resistant, pull-resistant fastener as defined in claim 1, wherein The outer end of the unlocking lever (51) is hingedly connected with a positioning pull ring (513), the hexagonal head end surface of the bolt (1) is provided with a positioning column (15), and the positioning pull ring (513) is used for vertically swinging to be clamped on the positioning column (15) when the unlocking lever (51) is rotated to the unlocking state.

Images