High-performance fastener with explosion-proof function

Abstract

The utility model discloses a high-performance fastener with an explosion-proof function, which comprises a first connecting piece and a second connecting piece, and the first connecting piece is positioned above the second connecting piece. According to the high-performance fastener with the explosion-proof function, the first connecting piece, the second connecting piece, the fastening bolt, the upper locking sleeve, the lower locking sleeve and the fastening bolt are matched with one another, after the fastening bolt penetrates through the first connecting piece and the second connecting piece, the fastening nut is screwed into the lower bolt, and the fastening bolt is screwed into the lower bolt along with gradual screwing of the fastening nut. A second connecting piece extrudes an extrusion ring, the extrusion ring extrudes a push block, so that a locking block limits a limiting block, it is guaranteed that a fastening nut cannot rise and rotate, meanwhile, along with gradual tightening, a lower pressing block at the bottom of an extrusion rod extrudes an extrusion block to push a clamping block into a limiting hole, double locking is achieved, and when the connecting pieces receive huge external force, the connecting pieces can be tightly screwed down. And the situation that the fastening bolt pops up to cause bursting of the connecting piece is avoided, and the anti-explosion function of the fastening piece is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-performance fasteners, in particular to a high-performance fastener with an explosion-proof function. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening and connection and are extremely widely used. Various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, instruments, chemicals and meters, etc. For the connection between plastic parts and cast aluminum parts, or the connection between two plastic parts, bolt connection is generally adopted, that is, first make a hole in the plastic part, and then make a corresponding screw hole in the cast aluminum part or make holes in the two plastic parts, and then pass the threaded end of the bolt through the through hole in the plastic part and tighten it, thereby realizing the connection between the plastic part and the cast aluminum part, or the connection between the two plastic parts.

[0003] As disclosed in the publication (announcement) number: CN216691777U, a high-performance fastener with a self-locking function relates to the field of high-performance fasteners with a self-locking function, including a main threaded rod, one end of the main threaded rod is provided with a connecting thread groove, the inner wall of the connecting thread groove is threadedly connected to a connecting screw, one end of the connecting screw is fixedly connected to a bolt head, one side of the surface of the main threaded rod is threadedly connected to a nut, one side surface of the nut is provided with an annular groove, the inner wall of the annular groove is fixedly connected to a plurality of micro springs, and one end of the plurality of micro springs is commonly fixedly connected to an annular movable plate.

[0004] However, the fastener connection method disclosed above is a separate connection, which not only easily leads to the loss of the connecting parts, but also when the connecting parts are subjected to huge external forces, they are very easy to deform or even burst. Therefore, it is necessary to propose a high-performance fastener with explosion-proof function. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides a high-performance fastener with explosion-proof function.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-performance fastener with explosion-proof function, comprising: a first connecting member and a second connecting member, wherein the first connecting member is located above the second connecting member;

[0008] A fastening bolt, wherein the fastening bolt connects the first connecting member to the second connecting member;

[0009] An upper locking sleeve, wherein the upper locking sleeve is arranged on the surface of the fastening bolt;

[0010] A lower locking sleeve, which is sleeved on the surface of the fastening bolt and is located below the second connecting member;

[0011] A fastening nut is threadably connected to the fastening bolt.

[0012] The above-mentioned high-performance fastener with explosion-proof function, wherein the fastening bolt comprises:

[0013] An upper bolt, the bottom of which is fixedly connected with a connecting rod;

[0014] A limit block, the limit block is fixedly connected to the surface of the connecting rod;

[0015] A lower bolt, wherein the lower bolt is fixedly connected to the bottom of the connecting rod;

[0016] A limiting hole is provided on the surface of the upper bolt.

[0017] The above-mentioned high-performance fastener with explosion-proof function, wherein an extrusion block is arranged inside the upper locking sleeve;

[0018] A clamping block, the clamping block is fixedly connected to the extrusion block;

[0019] A return spring connects the extrusion block to the upper locking sleeve.

[0020] The above-mentioned high-performance fastener with explosion-proof function, wherein the bottom of the upper bolt is fixedly connected with an extrusion rod;

[0021] A lower pressing block is fixedly connected to the bottom of the extrusion rod.

[0022] The above-mentioned high-performance fastener with explosion-proof function, wherein a movable groove is provided inside the lower locking sleeve;

[0023] An extrusion ring, wherein the extrusion ring is movable inside the movable groove;

[0024] An extrusion spring, wherein the extrusion spring connects the extrusion ring with the movable groove;

[0025] A card slot is provided inside the lower locking sleeve.

[0026] In the above-mentioned high-performance fastener with explosion-proof function, a clamping ring is fixedly connected to the top of the fastening nut, and the clamping ring can rotate inside the clamping groove.

[0027] The above-mentioned high-performance fastener with explosion-proof function, wherein a push block is arranged inside the movable groove;

[0028] A connecting rod, the connecting rod is fixedly connected to the push block;

[0029] A locking block, wherein the locking block is fixedly connected to the engagement rod;

[0030] A tension spring connects the locking block to the lower locking block.

[0031] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0032] 1. The utility model realizes a high-performance fastener with explosion-proof function by the mutual cooperation between the first connecting piece, the second connecting piece, the fastening bolt, the upper locking sleeve, the lower locking sleeve and the fastening bolt. After the fastening bolt passes through the first connecting piece and the second connecting piece, the fastening nut is screwed into the lower bolt. As the fastening nut is gradually tightened, the second connecting piece squeezes the extrusion ring, and the extrusion ring squeezes the push block, so that the locking block limits the limit block, ensuring that the fastening nut will not rise and rotate. At the same time, as the tightening is gradually done, the lower pressing block at the bottom of the extrusion rod squeezes the extrusion block to push the clamping block into the limit hole, which plays a double locking role. When the connecting piece receives a huge external force, the fastening bolt will not pop out and cause the connecting piece to burst, which greatly improves the explosion-proof function of the fastener.

[0033] 2. In the present invention, the upper locking sleeve and the lower locking sleeve are provided to lock the fastening bolts and clamp the first connecting member and the second connecting member at the same time, thereby ensuring the fastening effect.

[0034] 3. In the utility model, the reset spring is provided so that when the extrusion block is not squeezed, the clamping block will not cause movement obstruction to the insertion of the fastening bolt.

[0035] 4. In the present invention, the locking blocks are arranged alternately with the limit blocks to ensure complete locking when inserted. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural cross-sectional view of the main view of the utility model;

[0037] Figure 2 It is a three-dimensional structural diagram of the main view of the utility model;

[0038] Figure 3 It is a three-dimensional structural diagram of the fastening bolt of the utility model.

[0039] In the figure:

[0040] 1 first connecting piece, 2 second connecting piece, 3 fastening bolt, 301 upper bolt, 302 connecting rod, 303 limiting block, 304 lower bolt, 305 limiting hole, 4 upper locking sleeve, 5 lower locking sleeve, 6 fastening nut, 7 extrusion block, 8 clamping block, 9 return spring, 10 extrusion rod, 11 lower pressure block, 12 movable groove, 13 extrusion ring, 14 extrusion spring, 15 clamping groove, 16 clamping ring, 17 push block, 18 connecting rod, 19 locking block, 20 tension spring. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] like Figure 1-3 As shown, a high-performance fastener with explosion-proof function includes: a first connecting member 1 and a second connecting member 2, wherein the first connecting member 1 is located above the second connecting member 2.

[0043] The fastening bolt 3 connects the first connecting member 1 with the second connecting member 2. The fastening bolt 3 includes:

[0044] The upper bolt 301 has a connecting rod 302 fixedly connected to its bottom, and the extrusion rod 10 fixedly connected to its bottom.

[0045] The lower pressing block 11 is fixedly connected to the bottom of the extrusion rod 10 .

[0046] The limiting block 303 is fixedly connected to the surface of the connecting rod 302 .

[0047] The lower bolt 304 is fixedly connected to the bottom of the connecting rod 302 and can cooperate with the fastening nut 6 to complete the smooth installation of the fastening nut 6.

[0048] The limiting hole 305 is formed on the surface of the upper bolt 301 .

[0049] The upper locking sleeve 4 is sleeved on the surface of the fastening bolt 3 , and an extrusion block 7 is arranged inside the upper locking sleeve 4 .

[0050] The clamping block 8 is fixedly connected to the extrusion block 7 .

[0051] The return spring 9 connects the extrusion block 7 with the upper locking sleeve 4, so that when the extrusion block 7 is not squeezed, the clamping block 8 will not hinder the insertion of the fastening bolt 3. As the screw is tightened gradually, the lower pressing block 11 at the bottom of the extrusion rod 10 squeezes the extrusion block 7 to push the clamping block 8 into the limiting hole 305, which plays a double locking role. When the connecting piece is subjected to a huge external force, the fastening bolt 3 will not pop out and cause the connecting piece to burst, which greatly improves the explosion-proof function of the fastener.

[0052] The lower locking sleeve 5 is sleeved on the surface of the fastening bolt 3 and is located below the second connecting member 2. It locks the fastening bolt 3 and clamps the first connecting member 1 and the second connecting member 2 at the same time, thereby ensuring the fastening effect. A movable groove 12 is provided inside the lower locking sleeve 5, and a push block 17 is provided inside the movable groove 12.

[0053] The connecting rod 18 is fixedly connected to the push block 17 .

[0054] The locking block 19 is fixedly connected to the connecting rod 18 and is arranged in a staggered manner with the limiting block to ensure complete locking when the locking is completed.

[0055] A tension spring 20 connects the locking block 19 to the lower locking block 5 .

[0056] The extrusion ring 13 can move inside the movable groove 12 .

[0057] The extrusion spring 14 connects the extrusion ring 13 with the movable groove 12 .

[0058] The card slot 15 is provided inside the lower locking sleeve 5 .

[0059] The fastening nut 6 is threadedly connected to the fastening bolt 3. A snap ring 16 is fixedly connected to the top of the fastening nut 6. The snap ring 16 can rotate inside the slot 15. After the fastening bolt 3 passes through the first connecting member 1 and the second connecting member 2, the fastening nut 6 is screwed into the lower bolt 304. As the fastening nut 6 is gradually tightened, the second connecting member 2 squeezes the squeezing ring 13, and the squeezing ring 13 squeezes the pushing block 17, so that the locking block 19 limits the limit block 303, ensuring that the fastening nut 6 does not rotate.

[0060] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0061] The utility model provides a high-performance fastener with explosion-proof function. When in use, after the fastening bolt 3 passes through the first connecting member 1 and the second connecting member 2, the fastening nut 6 is screwed into the lower bolt 304. As the fastening nut 6 is gradually tightened, the second connecting member 2 squeezes the extrusion ring 13, and the extrusion ring 13 squeezes the push block 17, so that the locking block 19 limits the limit block 303, ensuring that the fastening nut 6 does not rotate. As the fastening is gradually tightened, the lower pressing block 11 at the bottom of the extrusion rod 10 squeezes the extrusion block 7 to push the clamping block 8 into the limit hole 305, which plays a double locking role. When the connecting member is subjected to a huge external force, the fastening bolt 3 will not pop out and cause the connecting member to burst.

[0062] In summary: this high-performance fastener with explosion-proof function solves the problems mentioned in the background technology by the mutual cooperation among the first connecting member 1, the second connecting member 2, the fastening bolt 3, the upper locking sleeve 4, the lower locking sleeve 5 and the fastening bolt 6.

[0063] 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 high-performance fastener with explosion-proof function, comprising: A first connecting member (1) and a second connecting member (2), characterized in that: the first connecting member (1) is located above the second connecting member (2); A fastening bolt (3), wherein the fastening bolt (3) connects the first connecting member (1) and the second connecting member (2); An upper locking sleeve (4), wherein the upper locking sleeve (4) is sleeved on the surface of the fastening bolt (3); A lower locking sleeve (5), wherein the lower locking sleeve (5) is sleeved on the surface of the fastening bolt (3) and is located below the second connecting member (2); A fastening nut (6), wherein the fastening nut (6) is threadedly connected to the fastening bolt (3).

2. A high-performance fastener with explosion-proof function according to claim 1, characterized in that: The fastening bolt (3) comprises: An upper bolt (301), the bottom of which is fixedly connected to a connecting rod (302); A limit block (303), wherein the limit block (303) is fixedly connected to the surface of the connecting rod (302); A lower bolt (304), wherein the lower bolt (304) is fixedly connected to the bottom of the connecting rod (302); A limiting hole (305), wherein the limiting hole (305) is opened on the surface of the upper bolt (301).

3. The high-performance fastener with explosion-proof function according to claim 2, characterized in that: An extrusion block (7) is arranged inside the upper locking sleeve (4); A clamping block (8), wherein the clamping block (8) is fixedly connected to the extrusion block (7); A return spring (9) connects the extrusion block (7) and the upper locking sleeve (4).

4. The high-performance fastener with explosion-proof function according to claim 3, characterized in that: The bottom of the upper bolt (301) is fixedly connected with an extrusion rod (10); A lower pressing block (11), wherein the lower pressing block (11) is fixedly connected to the bottom of the extrusion rod (10).

5. The high-performance fastener with explosion-proof function according to claim 4, characterized in that: A movable groove (12) is provided inside the lower locking sleeve (5); An extrusion ring (13), wherein the extrusion ring (13) is movable inside the movable groove (12); A pressing spring (14), wherein the pressing spring (14) connects the pressing ring (13) and the movable groove (12); A card slot (15), wherein the card slot (15) is arranged inside the lower locking sleeve (5).

6. The high-performance fastener with explosion-proof function according to claim 5, characterized in that: A snap ring (16) is fixedly connected to the top of the fastening nut (6), and the snap ring (16) can rotate inside the snap groove (15).

7. The high-performance fastener with explosion-proof function according to claim 6, characterized in that: A push block (17) is arranged inside the movable groove (12); A connecting rod (18), wherein the connecting rod (18) is fixedly connected to the push block (17); A locking block (19), wherein the locking block (19) is fixedly connected to the connecting rod (18); A tension spring (20) connects the locking block (19) and the lower locking sleeve (5).

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