CN217814432U - Anti-loose non-return screw - Google Patents

Abstract

The utility model discloses a locking non return screw, including the screw main part, still include end links and locking mechanism, screw main part one end integrated into one piece has the end links, the inside locking mechanism that is provided with of screw main part, locking mechanism includes jack, logical groove, inserts post, arc ring piece, thread groove and fixture block, the inside jack of inserting the post of seting up in screw main part, screw main part surface set up with the inside logical groove that is linked together of jack and lead to the groove be two, insert the post tip and be provided with the tight effect arc ring piece that rises, twist the screw main part to the installation internal portion earlier, insert the post to the jack is inside afterwards, align the inflation screw between the arc ring piece and twist along the thread groove, twist the in-process at the inflation screw, the arc ring piece is propped open, the fixture block is outside from leading to the groove position protrusion to the screw main part, and then plays the fastening effect to the screw main part, reduces not hard up the condition, improves screw-up's stability.

Description

Anti-loosening non-return screw

Technical Field

The utility model relates to a fastener technical field, in particular to locking non return screw.

Background

The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the circular rotation of the inclined plane of the object and the friction force, is visible everywhere in production and life, and is very widely applied.

Patent No. CN 214788467U's patent has announced a screw, adds the waterproof cover and can shelter from the joint groove, simultaneously because the elasticity circle has elasticity, the elasticity snare is located on the nut, utilizes the mounting to make the elasticity circle fix on the nut, makes the waterproof cover fix on the nut from this to shelter from first joint groove, also played waterproof effect to the nut, thereby can solve the problem that the joint groove is easy to be corroded because of ponding.

The existing screw has the following disadvantages when in use: after the existing screw is screwed in, the situation of looseness and the like easily occurs along with the influence of time or external vibration and other environmental factors, so that the fastening effect of the screw is influenced.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a locking non return screw through the jack, lead to the groove, insert the locking mechanism that subassembly such as post, arc ring piece and fixture block constitute, can twist the locking to its position after accomplishing at the screw, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a locking non return screw, includes the screw main part, still includes end links and locking mechanism, screw main part one end integrated into one piece has the end links, the inside locking mechanism that is provided with of screw main part, locking mechanism includes jack, logical groove, inserts post, arc ring piece, thread groove and fixture block, the inside jack that inserts the post of seting up of screw main part, screw main part surface set up with the inside logical groove that is linked together of jack and lead to the groove be two, insert the post tip and be provided with the tight arc ring piece of effect that rises, arc ring piece surface integrated into one piece has the fixture block that corresponds with logical groove position.

The surface of the end ring is provided with an auxiliary mechanism, the auxiliary mechanism comprises an outer spiral groove, a circular ring, a through hole and an inner spiral groove, the circular ring is detachably connected with the outer spiral groove formed on the outer wall of the end ring, the through hole is formed in the circular ring, and the inner wall of the through hole is provided with the inner spiral groove corresponding to the outer spiral groove; the outer spiral groove has been seted up to the end links outer wall, when needs, can overlap the through-hole department of ring to the end links periphery, aligns and twists interior spiral groove and outer spiral groove, and then fixes the outer lane position at the end links with the ring, when the screw-up, increases the area of contact with the installation face through the ring, improves the stability of fastening.

Furthermore, an inner hexagonal groove is formed in one side of the surface of the end ring, and the end part of the jack is located inside the inner hexagonal groove; the screw body is screwed by conveniently using components such as a hexagonal wrench and the like through the inner hexagonal groove.

Furthermore, the inner wall of the arc-shaped ring piece is provided with a thread groove; conveniently twist into expansion screw through the thread groove and then strut arc ring piece to both sides.

Further, the through hole size corresponds to an end ring size; it is ensured that the ring can be mounted to the outer ring position of the end ring.

Compared with the prior art, the utility model discloses following beneficial effect has: when the screw is used, the screw main body is firstly screwed into the mounting body, then the inserting column is inserted into the inserting hole, the position of the clamping block is kept aligned with the through groove in the inserting process, after the inserting column is inserted, the expansion screw is aligned between the arc-shaped ring pieces and screwed in along the thread groove, in the screwing process of the expansion screw, the arc-shaped ring pieces are propped open, the clamping block protrudes out of the screw main body from the through groove, the fastening effect on the screw main body is further realized, the loosening condition is reduced, and the fastening stability of the screw is improved; the outer wall of the end ring is provided with an outer spiral groove, when needed, the through hole of the circular ring can be sleeved on the periphery of the end ring, the inner spiral groove and the outer spiral groove are aligned and screwed, the circular ring is further fixed at the outer ring position of the end ring, when the screw is fastened, the contact area between the circular ring and the mounting surface is increased, and the fastening stability is improved.

Drawings

Fig. 1 is the utility model relates to an overall structure schematic diagram of locking non return screw.

Fig. 2 is the utility model relates to a screw main part inner structure schematic diagram of locking non return screw.

Fig. 3 is a schematic view of the overlooking structure of the plug column of the anti-loosening non-return screw of the present invention.

In the figure: 1. a screw body; 2. an end ring; 201. an inner hexagonal groove; 3. a locking mechanism; 301. a jack; 302. a through groove; 303. inserting a column; 304. an arc-shaped ring sheet; 305. a thread groove; 306. a clamping block; 4. an auxiliary mechanism; 401. an outer thread groove; 402. a circular ring; 403. a through hole; 404. an internal screw groove.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

As shown in fig. 1 to 3, the anti-loosening check screw includes a screw main body 1, and further includes an end ring 2 and a locking mechanism 3, the end ring 2 is integrally formed at one end of the screw main body 1, the locking mechanism 3 is disposed inside the screw main body 1, the locking mechanism 3 includes a jack 301, a through groove 302, an insert column 303, two arc-shaped ring pieces 304, a thread groove 305 and a clamping block 306, the jack 301 inserted into the insert column 303 is disposed inside the screw main body 1, the through groove 302 communicated with the inside of the jack 301 is disposed on the surface of the screw main body 1, the through groove 302 is two, the arc-shaped ring pieces 304 for tensioning are disposed at the end portions of the insert column 303, and the clamping block 306 corresponding to the through groove 302 is integrally formed on the surface of the arc-shaped ring pieces 304.

The end ring structure comprises an end ring 2 and is characterized by further comprising an auxiliary mechanism 4, wherein the auxiliary mechanism 4 is arranged on the surface of the end ring 2, the auxiliary mechanism 4 comprises an outer thread groove 401, a circular ring 402, a through hole 403 and an inner thread groove 404, the circular ring 402 is detachably connected with the outer thread groove 401 formed in the outer wall of the end ring 2, the through hole 403 is formed in the circular ring 402, and the inner wall of the through hole 403 is provided with the inner thread groove 404 corresponding to the outer thread groove 401; an outer thread groove 401 is formed in the outer wall of the end ring 2, when needed, the through hole 403 of the circular ring 402 can be sleeved on the outer periphery of the end ring 2, the inner thread groove 404 and the outer thread groove 401 are aligned and screwed, the circular ring 402 is further fixed at the outer ring position of the end ring 2, when screws are fastened, the contact area between the circular ring 402 and the mounting surface is increased, and the fastening stability is improved.

One side of the surface of the end ring 2 is provided with an inner hexagonal groove 201, the end of the insertion hole 301 is located inside the inner hexagonal groove 201, and the inner wall of the arc-shaped ring piece 304 is provided with a thread groove 305; conveniently use components such as hexagonal spanner to twist screw main part 1 through allen key 201 and move, conveniently twist the expansion screw through thread groove 305 and then strut arc-shaped circular sheet 304 to both sides.

Wherein the through hole 403 has a size corresponding to the size of the end ring 2; it is ensured that the circular ring 402 can be mounted to the outer ring position of the end ring 2.

It should be noted that, the utility model relates to a locking non return screw, during the use, jack 301 and logical groove 302 have been seted up to screw main part 1 inside, when using the screw, screw main part 1 is twisted into to the installation body inside earlier, insert post 303 to jack 301 inside afterwards, keep fixture block 306 and logical groove 302 position alignment in the insertion process, insert post 303 and align the inflation screw between the arc ring piece 304 and twist along thread groove 305 after accomplishing, in the inflation screw twists in-process, arc ring piece 304 is propped open, fixture block 306 protrudes to screw main part 1 outside from logical groove 302 position, and then play the fastening effect to screw main part 1, reduce not hard up condition, improve the stability of screw fastening; an outer thread groove 401 is formed in the outer wall of the end ring 2, when needed, the through hole 403 of the circular ring 402 can be sleeved on the outer periphery of the end ring 2, the inner thread groove 404 and the outer thread groove 401 are aligned and screwed, the circular ring 402 is further fixed at the outer ring position of the end ring 2, when screws are fastened, the contact area between the circular ring 402 and the mounting surface is increased, and the fastening stability is improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a locking non return screw, includes screw main part (1), its characterized in that still includes end ring (2) and locking mechanical system (3), screw main part (1) one end integrated into one piece has end ring (2), inside locking mechanical system (3) that is provided with of screw main part (1), locking mechanical system (3) are including jack (301), logical groove (302), insert post (303), arc ring piece (304), thread groove (305) and fixture block (306), jack (301) that insert post (303) are seted up to screw main part (1) inside, and logical groove (302) that are linked together with jack (301) inside are seted up on screw main part (1) surface are two, and post (303) tip is provided with and rises and tightly acts on arc ring piece (304), and arc ring piece (304) surface integrated into one piece has fixture block (306) that correspond with logical groove (302) position.

2. An anti-loosening non-return screw as defined in claim 1, wherein: the end ring structure is characterized by further comprising an auxiliary mechanism (4), the auxiliary mechanism (4) is arranged on the surface of the end ring (2), the auxiliary mechanism (4) comprises an outer thread groove (401), a circular ring (402), a through hole (403) and an inner thread groove (404), the circular ring (402) is detachably connected with the outer thread groove (401) formed in the outer wall of the end ring (2), the through hole (403) is formed in the circular ring (402), and the inner thread groove (404) corresponding to the outer thread groove (401) is formed in the inner wall of the through hole (403).

3. A check screw as claimed in claim 1, wherein: an inner hexagonal groove (201) is formed in one side of the surface of the end ring (2), and the end portion of the insertion hole (301) is located inside the inner hexagonal groove (201).

4. A check screw as claimed in claim 1, wherein: the inner wall of the arc-shaped ring piece (304) is provided with a thread groove (305).

5. A check screw as claimed in claim 2, wherein: the through hole (403) has a size corresponding to the size of the end ring (2).

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