Anti-seismic and anti-disengagement threaded fastener

Abstract

The utility model relates to the technical field of threaded fasteners, and discloses an anti-seismic and anti-falling threaded fastener which comprises a transverse plate, an embedded part is fixedly connected to the bottom of the transverse plate, preset holes are formed in the top of the embedded part and the top of the transverse plate, sliding grooves are formed in the left side and the right side of the embedded part, and the transverse plate is fixedly connected with the sliding grooves. And the interiors of the two sliding grooves are slidably connected with sliding blocks, the interiors of the preset holes are in threaded connection with fastening bolts, and a fixing mechanism is arranged at the top of the transverse plate and used for preventing the fastening bolts from falling off. According to the utility model, the fastening bolt is in threaded connection with the interior of the preset hole and rotates, the transverse plate and other parts are connected through the fastening effect of threads, the sliding groove and the sliding block on the two sides of the embedded part are utilized at the same time, the sliding block slides in the sliding groove during vibration, and the sliding block buffers energy and limits displacement when a relative displacement trend exists; the fastening bolt is prevented from loosening and falling off in a vibration environment, and the connection stability is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of threaded fastener especially relates to anti -shock type threaded fastener that prevents falling off. BACKGROUND

[0002] Threaded fastener is a kind of widely used in mechanical, building and automobile field basic connecting piece, mainly through the screwing of thread realizes the fastening connection of two or more components, its effect is remarkable, can ensure that various equipment and structure keep stable relative position between parts when normal operation or bear certain external force, to guarantee the reliability and safety of the whole system.

[0003] Anti -shock type threaded fastener that prevents falling off is a special type developed on the basis of ordinary threaded fastener, mainly used in the connecting part under the environment of earthquake and strong vibration, its core effect lies in enhancing the stability of connection, prevent the loosening and falling off of thread under vibration or impact, this fastener can effectively improve the anti -seismic performance of structure in earthquake and other disasters, reduce the structural damage and safety accidents caused by the failure of connecting piece.

[0004] The existing anti -shock type threaded fastener that prevents falling off adopts simple structure design of increasing thread friction, adds special coating on the surface of thread or adopts special thread tooth shape, but under the long -term strong vibration or impact, friction will gradually decrease, leading to the decline of anti -falling effect, in the prior art, by changing the stress distribution of tooth shape, thread can better interlock in the vibration process, increase the ability of resisting loosening, but in actual use, long -term use will have tooth shape damage, leading to the decrease of fastening force. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides anti -shock type threaded fastener that prevents falling off, aims at improving the problem of tooth shape damage in long -term use in prior art, leading to the decrease of fastening force.

[0006] In order to realize the above -mentioned purpose, the utility model adopts the following technical scheme: anti -shock type threaded fastener that prevents falling off, including horizontal plate, the bottom of the horizontal plate is fixedly connected with embedded part, the top of embedded part and horizontal plate is equipped with preset hole, the left and right sides of embedded part are equipped with sliding slot, the inside of two sliding slots is slidably connected with sliding block, the inside of preset hole is threadedly connected with fastening bolt, the top of horizontal plate is provided with fixed mechanism, the fixed mechanism is used to prevent the falling off of fastening bolt.

[0007] As a further description of the above technical scheme:

[0008] The fixing mechanism comprises a top cover, the top of the horizontal plate is provided with the top cover, the left and right sides of the top cover are fixedly connected with extension plates, limit holes are formed in the top of the two extension plates, and fixed bolts are rotatably connected in the two limit holes.

[0009] As a further description of the above technical solution:

[0010] The faraway sides of the two sliding blocks are fixedly connected with the base plates, and the faraway sides of the two base plates are fixedly connected with a plurality of rubber pads at equal intervals.

[0011] As a further description of the above technical solution:

[0012] The front and back sides of the embedded part are fixedly connected with a plurality of convex teeth at equal intervals, and the plurality of convex teeth are designed to be inclined.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the fastening bolt is slidably connected with a gasket, and the bottom of the gasket is attached to the top of the horizontal plate.

[0015] As a further description of the above technical solution:

[0016] The interiors of the two sliding grooves are provided with sliding grooves in the front and back sides, the front and back sides of the two sliding blocks are fixedly connected with sliding blocks, and the plurality of sliding blocks are slidably connected with the interiors of the corresponding sliding grooves.

[0017] As a further description of the above technical solution:

[0018] The top left and right sides of the horizontal plate are provided with fixed holes, the bottom ends of the two fixed bolts are rotatably connected in the interiors of the corresponding fixed holes after penetrating through the extension plates, and the fixed bolt and the fixed hole are matched in size.

[0019] As a further description of the above technical solution:

[0020] The bottom end of the fastening bolt is threadedly connected with a nut, and the interior of the nut is matched in size with the fastening bolt.

[0021] The utility model has the advantages of the following:

[0022] 1、The utility model discloses a fastening bolt is connected to the preset hole and is rotated, utilizes the thread fastening effect to connect the horizontal plate and other components, simultaneously utilizes the sliding groove and the sliding block of the both sides of embedded part, and when vibrating, the sliding block slides in the sliding groove, when having the relative displacement tendency, the sliding block buffers energy and limits displacement, avoids the fastening bolt loosening and falling off under the vibration environment, guarantees the connection stability, and ensures reliable connection and fixation.

[0023] 2. The utility model discloses, through the top cap is located the horizontal board top, its left and right side extension plate extension structure, install rotatable fixed bolt in the limiting hole of extension plate, and rotate fixed bolt adjustment and tighten degree of length of extension, when tightening, exert pressure, realized this structure with adjacent component close combination, limit relative movement, reach stable connection. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the perspective view of anti -shock type thread fastener of this utility model that prevents falling off;

[0025] Figure 2 It is the structure split diagram of anti -shock type thread fastener of this utility model that prevents falling off;

[0026] Figure 3 It is the structure split diagram of anti -shock type thread fastener of this utility model that prevents falling off;

[0027] Figure 4 It is the structure split diagram of anti -shock type thread fastener of this utility model that prevents falling off; Figure 3

[0028] Figure 5 It is the structure split diagram of anti -shock type thread fastener of this utility model that prevents falling off.

[0029] LEGEND:

[0030] 1, horizontal board;2, fixed mechanism;201, top cap;202, extension plate;203, limiting hole;204, fixed bolt;3, pre -buried part;4, pre -set hole;5, sliding groove;6, sliding block;7, fastening bolt;8, pad;9, rubber pad;10, convex tooth;11, gasket;12, sliding slot;13, sliding block;14, fixed hole;15, nut. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0032] Refer to Figure 1 , Figure 2 and Figure 3 ​The utility model provides an embodiment: anti -seismic anti -type thread fastener of falling, including horizontal plate 1, horizontal plate 1 is as basic load bearing component, play the role of connecting and supporting other components, its bottom fixedly connected with embedded part 3, embedded part 3 can make this fastener better with other structure or base body combination, enhance the stability of whole, embedded part 3 and the top of horizontal plate 1 all are provided with preset hole 4, and preset hole 4 provides installation position for fastening bolt 7, it is convenient to realize connecting function, embedded part 3's left and right sides all are provided with sliding slot 5, and sliding slot 5 provides the space of sliding for sliding block 6, so that sliding block 6 can move within a certain range, the inside of two sliding slots 5 all are slidably connected with sliding block 6, and sliding block 6 can slide in sliding slot 5, and when being subjected to external force, play the role of buffering and dispersing stress, to reduce the impact on fastening bolt 7, and preset hole 4 is screw connected with fastening bolt 7, and fastening bolt 7 can be fixed together with different components firmly through screw connection, realizes connecting function, and the top of horizontal plate 1 is provided with fixed mechanism 2, and fixed mechanism 2 is used for preventing fastening bolt 7 from falling off, can enhance the anti -falling performance of fastening bolt 7, guarantee the reliability of connection, and the bottom end of fastening bolt 7 is screw connected with nut 15, and nut 15 can cooperate with fastening bolt 7, further enhance fastening effect, form the connecting mode of upper and lower clamping, and the size of the inside of nut 15 and fastening bolt 7 is matched, guarantees the close cooperation between both, to prevent fastening bolt 7 from loosening or falling off;

[0033] Specifically, the fastening bolt 7 is screw connected into the preset hole 4, by rotating the bolt, the horizontal plate 1 and other components are tightly connected by the fastening effect of the thread, the sliding slots 5 opened on the left and right sides of the embedded part 3 and the sliding blocks 6 slidably connected inside play a key role in anti-seismic and anti-falling, when subjected to vibration, the sliding block 6 can slide in the sliding slot 5, when there is a tendency of relative displacement between the horizontal plate 1 and the connecting component, the sliding of the sliding block 6 can buffer part of the vibration energy, avoiding the fastening bolt 7 from loosening and falling off due to instantaneous excessive stress, at the same time, the movement of the sliding block 6 in the sliding slot 5 also limits the relative displacement between the horizontal plate 1 and the connecting component, further ensuring the stability of the connection, ensuring that the anti-seismic and anti-falling thread fastener can still reliably play the connection and fixing function in a vibrating environment, the nut 15 can cooperate with the fastening bolt 7 from below, further enhancing the fastening effect, forming an upper and lower clamping connection mode, improving the reliability of the connection, preventing the fastening bolt 7 from loosening or falling off due to vibration and other factors.

[0034] Reference Figure 1 and Figure 5The fixing mechanism 2 comprises a top cover 201, the top of the horizontal plate 1 is provided with the top cover 201, the top cover 201 can provide protection and shielding for the top of the horizontal plate 1, the left and right sides of the top cover 201 are fixedly connected with extension plates 202, the extension plates 202 expand the connection range of the fixing mechanism 2, and more connection points are provided for connecting other components, the top of each of the two extension plates 202 is provided with a limiting hole 203, the limiting hole 203 provides a rotating and mounting position for a fixing bolt 204, and the operation of the fixing bolt 204 is facilitated, the inside of each of the two limiting holes 203 is rotatably connected with the fixing bolt 204, the fixing bolt 204 can be adjusted in position and fastening degree through rotation, the fixing of related components or the connection relationship between components is realized, the top of the horizontal plate 1 is provided with a fixing hole 14 on the left and right sides, the fixing hole 14 provides a penetrating and connecting position for the fixing bolt 204, so that the fixing bolt 204 can be better connected with the horizontal plate 1, the bottom end of each of the two fixing bolts 204 penetrates through the extension plate 202 and is rotatably connected in the inside of the corresponding fixing hole 14, and such a connection mode makes the extension plate 202 and the horizontal plate 1 form an integral whole, and the stability of the structure is enhanced, the size of the fixing bolt 204 and the fixing hole 14 is matched, so that the fixing bolt 204 can be accurately mounted in the fixing hole 14, and installation problems caused by size mismatch are avoided;

[0035] Specifically, the top cover 201 is located at the top of the horizontal plate 1, the extension plates 202 on the left and right sides of the top cover 201 play an extension structure role, and the possibility of connection with other components is increased, the limiting hole 203 provided at the top of the extension plate 202 is used for mounting the fixing bolt 204, the fixing bolt 204 can rotate in the limiting hole 203, the fixing bolt 204 is rotated, the extension length or the tightening degree thereof is adjusted, when the fixing bolt 204 is tightened, the top cover 201 and the extension plate 202 are more firmly fixed on the horizontal plate 1 through rotation of the fixing bolt 204, the connection between them is more closely, so that the stability of the overall structure is improved, and it is ensured that the top cover 201 can effectively play a role of top protection and connection expansion.

[0036] Referring to Figure 3 , Figure 4 and Figure 5The faraway side of the two sliding blocks 6 is fixedly connected with a base plate 8, the base plate 8 provides a fixed basis for the rubber pad 9, and the connection firmness of the related components is enhanced, the faraway side of the two base plates 8 is fixedly connected with a plurality of rubber pads 9 at equal intervals, the rubber pad 9 has elasticity, the front and rear sides of the embedded part 3 are fixedly connected with a plurality of convex teeth 10 at equal intervals, the convex teeth 10 can increase the friction and grip of the embedded part 3 and the surrounding structure, a plurality of convex teeth 10 adopt an inclined design, which helps the convex teeth 10 to better embed into the surrounding structure, improves the anchoring performance of the embedded part 3, the outer wall of the fastening bolt 7 is slidingly connected with a gasket 11, the gasket 11 can increase the contact area of the fastening bolt 7 and the horizontal plate 1, and disperse the pressure of the fastening bolt 7, the bottom of the gasket 11 is attached to the top of the horizontal plate 1, so that the gasket 11 can effectively play its role of protecting and dispersing pressure, the inside of the two sliding grooves 5 is provided with a sliding groove 12 on the front and rear sides, the sliding groove 12 provides a sliding track for the sliding block 13, and ensures the directionality of sliding, the front and rear sides of the two sliding blocks 6 are fixedly connected with the sliding block 13, the sliding block 13 is connected with the sliding block 6, so that it can stably slide in the sliding groove 12, a plurality of sliding blocks 13 are respectively slidingly connected with the inside of the corresponding sliding grooves 12, so that the sliding of the sliding block 6 in the sliding groove 5 is more stable and orderly, and the sliding block 6 is prevented from deviating;

[0037] Specifically, the rubber pad 9 can play a buffering role, absorb and dissipate part of the vibration energy, further improve the anti-seismic performance of the fastener, reduce the collision and impact between the components due to vibration, the convex teeth 10 are fixedly arranged on the front and rear sides of the embedded part 3, and adopt an inclined design. The inclined design increases the bonding force between the embedded part 3 and the base body when the embedded part 3 is embedded into the corresponding base body, improves the stability in the base body, increases the contact area between the fastening bolt 7 and the horizontal plate 1, disperses the pressure when the fastening bolt 7 is tightened, avoids excessive pressure on the horizontal plate 1, prevents the surface of the horizontal plate 1 from being crushed or deformed, and makes the sliding of the sliding block 6 in the sliding groove 5 more stable, limits the sliding direction of the sliding block 6, and prevents deviation or shaking during sliding.

[0038] Working principle: when using the anti-shock anti-loose threaded fastener, the fastening bolt 7 is threaded into the preset hole 4, and by rotating the bolt, the horizontal plate 1 and other components are tightly connected by the fastening effect of the thread, and the sliding grooves 5 opened on the left and right sides of the embedded part 3 and the sliding blocks 6 connected inside play a key role in anti-shock and anti-loose, when subjected to vibration, the sliding block 6 can slide in the sliding groove 5, when there is a tendency for the horizontal plate 1 and the connecting component to displace relative to each other, the sliding of the sliding block 6 can buffer part of the vibration energy, avoiding the fastening bolt 7 from loosening and falling off due to instantaneous excessive stress, at the same time, the movement of the sliding block 6 in the sliding groove 5 also limits the relative displacement between the horizontal plate 1 and the connecting component, thereby further ensuring the stability of the connection, ensuring that the anti-shock anti-loose threaded fastener can still reliably play the connection and fixing function in the vibration environment.

[0039] And the top cover 201 is located at the top of the horizontal plate 1, and the extension plates 202 on the left and right sides thereof play the role of extending the structure, increasing the possibility of connecting with other components, and the limiting holes 203 opened at the top of the extension plates 202 are for installing the fixing bolts 204, the fixing bolts 204 can rotate in the limiting holes 203, and by rotating the fixing bolts 204, the extension length or the tightening degree thereof can be adjusted, when the fixing bolts 204 are tightened, pressure can be applied to tightly combine the structure with the adjacent components, limit the relative movement therebetween, and realize stable connection.

[0040] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. Anti-vibration and anti-unscrewing threaded fastener comprising a crosspiece (1), characterized in that: The bottom of the cross plate (1) is fixedly connected with a embedded part (3), the embedded part (3) and the top of the cross plate (1) are provided with a preset hole (4), the left and right sides of the embedded part (3) are provided with a sliding groove (5), the inside of the two sliding grooves (5) are slidably connected with a sliding block (6), the inside of the preset hole (4) is threadedly connected with a fastening bolt (7), the top of the cross plate (1) is provided with a fixing mechanism (2), the fixing mechanism (2) is used for preventing the fastening bolt (7) from falling off.

2. The shock-resistant, pull-resistant threaded fastener according to claim 1, characterized in that: The fixing mechanism (2) comprises a top cover (201), the top of the cross plate (1) is provided with a top cover (201), the left and right sides of the top cover (201) are fixedly connected with an extension plate (202), the top of the two extension plates (202) is provided with a limiting hole (203), the inside of the two limiting holes (203) are rotatably connected with a fixing bolt (204).

3. The shock-resistant, pull-resistant threaded fastener according to claim 1, characterized in that: The opposite sides of the two sliding blocks (6) are fixedly connected with a backing plate (8), the opposite sides of the two backing plates (8) are fixedly connected with a plurality of rubber pads (9) at equal intervals.

4. The shock-resistant, pull-resistant threaded fastener according to claim 1, characterized in that: The front and rear sides of the embedded part (3) are fixedly connected with a plurality of protrusions (10) at equal intervals, and the plurality of protrusions (10) are designed to be inclined.

5. The shock-resistant, pull-resistant threaded fastener according to claim 1, wherein: The outer wall of the fastening bolt (7) is slidably connected with a gasket (11), and the bottom of the gasket (11) is attached to the top of the cross plate (1).

6. The shock-resistant, pull-resistant threaded fastener according to claim 1, characterized in that: The inside of the two sliding grooves (5) is provided with a sliding groove (12), and the front and rear sides of the two sliding blocks (6) are fixedly connected with a sliding block (13), and a plurality of sliding blocks (13) are slidably connected with the inside of the corresponding sliding grooves (12).

7. The anti-vibration, anti-backout threaded fastener according to claim 2, wherein: The top of the cross plate (1) is provided with a fixing hole (14) on the left and right sides, the bottom of the two fixing bolts (204) penetrates through the extension plate (202) and is rotatably connected in the inside of the corresponding fixing hole (14), and the size of the fixing bolt (204) and the fixing hole (14) is matched.

8. The shock-resistant, pull-resistant threaded fastener according to claim 1, characterized in that: The bottom of the fastening bolt (7) is threadedly connected with a nut (15), and the size of the inside of the nut (15) and the fastening bolt (7) is matched.

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