CN218000110U

CN218000110U - Anti-loosening bolt assembly with self-locking effect

Info

Publication number: CN218000110U
Application number: CN202222341768.8U
Authority: CN
Inventors: 吴国灿; 吴华平; 占洪平
Original assignee: Fujian Huagai Machinery Manufacture Co ltd
Current assignee: Fujian Huagai Machinery Manufacture Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-12-09
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses an anti bolt assembly that moves with auto-lock effect belongs to hardware technical field, including bolt and nut, encircle on the bolt and align to grid is provided with a plurality of locking grooves, and locking groove is the ratchet form, encircles on the flank of thread in the nut and is provided with a plurality of recesses, is provided with in the recess with the spacing piece of locking groove matched with elasticity. Utilize the spacing piece of elasticity on the ratchet form anti-loosening groove on the bolt and the nut, when the nut screw in bolt, the shell fragment can be supported and pressed inwards to make and go on smoothly when screwing in, and after the nut was screwed well, the spacing piece of elasticity will support and press ratchet form anti-loosening groove, thereby makes the nut unable to roll back, reaches auto-lock and locking effect, and locking effect can not weaken along with vibrations.

Description

Anti-loosening bolt assembly with self-locking effect

Technical Field

The utility model discloses an anti not hard up bolt assembly with self-locking effect belongs to hardware technical field.

Background

The bolt is a fastener consisting of a head part and a screw (a cylinder with external threads), needs to be matched with a nut for use, and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. The bolt connection is a detachable connection because the two parts can be separated if the nut is unscrewed from the bolt. The anchor bolt is one of bolt connection forms, only a nut part is detachably arranged after the anchor bolt is assembled, and a screw rod part and the concrete base material are fixed together in a certain mode and cannot be separated.

Since some machine equipment is frequently shaken during operation, the nuts are easily loosened from the bolts, which easily causes machine equipment to be stopped or damaged. Some existing manufacturers have proposed some anti-loosening bolts, but most of the bolts rely on friction enhancement to achieve anti-loosening. This leads to the bolts and nuts still being tightened again at regular intervals, which is troublesome. Therefore, in order to solve this problem, a new solution needs to be proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned problem and providing an anti-loosening bolt assembly with self-locking effect.

The utility model discloses a following technical scheme realizes above-mentioned purpose, an anti bolt assembly that moves with auto-lock effect, including bolt and nut, encircle on the bolt and align to grid is provided with a plurality of locking grooves, locking groove is the ratchet form, it is provided with a plurality of recesses to encircle on the flank of thread in the nut, be provided with in the recess and prevent the spacing piece of locking groove matched with elasticity.

Through adopting above-mentioned technical scheme, utilize the spacing piece of elasticity on the ratchet form anti-loosening groove on the bolt and the nut, when nut screw in bolt, the shell fragment can be supported and pressed inwards to make and go on smoothly when screwing in, and after the nut was screwed well, the spacing piece of elasticity will support and press ratchet form anti-loosening groove, thereby makes the nut can't roll back, reaches auto-lock and locking effect, and locking effect can not weaken along with vibrations.

Preferably, one end of the elastic limiting piece is fixedly connected with the nut, the other end of the elastic limiting piece is a movable end, and the movable end of the elastic limiting piece faces the vertical plane of the ratchet of the anti-loosening groove.

By adopting the technical scheme, the movable end of the elastic limiting sheet faces the ratchet vertical surface of the anti-loosening groove, so when the nut is screwed in, the elastic limiting sheet can be pressed inwards by the ratchet inclined surface of the anti-loosening groove, the screwing in of the nut cannot be hindered, and when the nut rotates, the elastic limiting sheet can be pressed against the ratchet vertical surface, the nut is prevented from returning, and the purpose of self-locking and anti-loosening is achieved.

Preferably, the nut is provided with a limit-releasing component for driving the elastic limit sheet to move.

Through adopting above-mentioned technical scheme, utilize and separate the limit subassembly for elasticity spacing piece can be driven, and the inside bending movement, thereby makes the nut can be rolled back and take out.

Preferably, the nut includes screw thread piece and hexagonal piece, the hexagonal piece cover is established on the screw thread piece, and rotates with the screw thread piece and be connected, it includes a plurality of connecting rods to separate the limit subassembly, the both ends of connecting rod rotate with the expansion end and the hexagonal piece of the spacing piece of elasticity respectively and are connected.

Through adopting above-mentioned technical scheme, utilize the connecting rod, when the rotatory hexagonal piece of user, will drive the connecting rod to drive the spacing piece of elasticity, make it carry out the bending movement, relieve the spacing to the bolt.

Preferably, be provided with a plurality of spacing grooves on the nut, the spacing groove extends to on the screw thread piece from the side of hexagonal piece, be provided with on the nut with spacing groove matched with spacing bolt, be provided with the firm piece that is used for firm bolt on the spacing bolt, be provided with on the hexagonal piece with firm piece transition fit's firm groove.

Through adopting above-mentioned technical scheme, utilize spacing groove and spacing bolt, can fix the spacing piece of elasticity under the state of ejecting or retraction to make the nut can be by spacing state of contracting or the state of can dismantling.

Preferably, a plurality of compensation gaskets are arranged on the bolt.

Through adopting above-mentioned technical scheme, utilize the compensation gasket, can compensate the deviation distance of the production between the object of locking and the anti-loosening groove to make the nut can fasten on the bolt.

Compared with the prior art, the beneficial effects of the utility model are that:

the ratchet-shaped anti-loosening groove formed in the bolt and the elastic limiting piece arranged on the nut are utilized, so that after the nut is installed, the elastic limiting piece supports and presses the anti-loosening groove, the self-locking anti-loosening effect is achieved, the nut cannot move back, and the anti-loosening effect achieved through supporting and pressing is avoided, so that the nut cannot weaken along with time and is not required to be screwed up regularly.

Drawings

Fig. 1 is a schematic view of the overall structure of an anti-loosening bolt assembly with a self-locking effect according to the present invention;

fig. 2 is an exploded view of the anti-loose bolt assembly with self-locking effect according to the present invention;

fig. 3 is the utility model discloses an anti-loose bolt assembly's of auto-lock effect nut structure sketch map.

Reference numerals: 1. a bolt; 2. a nut; 3. an anti-loosening groove; 4. a groove; 5. an elastic limiting sheet; 6. a thread block; 7. a hexagonal block; 8. a connecting rod; 9. a limiting groove; 10. a limiting bolt; 11. a stabilizing block; 12. a stabilizing groove; 13. and (6) compensating the gasket.

Detailed Description

In the following description of the present invention, it is understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but not to indicate or imply that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, 2 and 3, the anti-loosening bolt assembly with the self-locking effect comprises a bolt 1 and a nut 2. The bolt 1 is provided with a plurality of anti-loosening grooves 3 in a surrounding and uniform arrangement mode, the anti-loosening grooves 3 are in a ratchet shape, and the vertical surface of the anti-loosening grooves 3 is arranged on one side close to the screwing-in direction. A plurality of grooves 4 are arranged on the thread surface of the nut 2 in a surrounding way, and elastic limiting sheets 5 are arranged in the grooves 4. One end of the elastic limiting piece 5 is fixedly connected with the nut 2, the other end is a movable end, and the movable end faces the vertical plane of the ratchet of the anti-loosening groove 3. Therefore, when the nut 2 is screwed into the bolt 1, the elastic limiting piece 5 is continuously abutted with the inclined surface of the anti-loosening groove 3, and is continuously pushed to retract, so that the installation and screwing of the nut 2 are not hindered. And when the nut 2 is installed, the elastic limiting piece 5 is positioned in one of the anti-loosening grooves 3, and at the moment, the movable end of the elastic limiting piece 5 is pressed against the vertical surface of the anti-loosening groove 3. Therefore, when the nut 2 is retracted, the nut can be blocked, and the nut cannot be retracted, so that the self-locking and anti-loosening effects are achieved, and the anti-loosening effect cannot be weakened along with time. Be provided with a plurality of compensation gasket 13 on bolt 1, it will be because elasticity spacing piece 5 enters into the back of anti-loosening groove 3 when nut 2 revolves to the limit, compensate the distance deviation between nut 2 and the work piece for nut 2 can fasten more stably.

The nut 2 comprises a thread block 6 and a hexagonal block 7, and the hexagonal block 7 is sleeved on the thread block 6 and is rotatably connected with the thread block 6. The nut 2 is provided with a limit-releasing assembly which comprises a plurality of connecting rods 8. And two ends of the connecting rod 8 are respectively connected with the movable end of the elastic limiting sheet 5 and the hexagonal block 7 in a rotating way. Therefore, when the hexagonal block 7 rotates, the connecting rod 8 is driven to move, so that the elastic limiting piece 5 is pulled to contract. The abutment of the locking groove 3, that is, the position limitation of the nut 2 is released, so that the nut 2 can be retracted and taken out.

The nut 2 is provided with a plurality of limiting grooves 9, and the limiting grooves 9 extend into the thread block 6 from the side surface of the hexagonal block 7. The nut 2 is provided with a limiting bolt 10 matched with the limiting groove 9, and when the hexagonal block 7 is overlapped with the limiting groove 9 on the thread block 6, the limiting bolt 10 can be inserted, so that the hexagonal block and the thread block are fixed together. Therefore, a user can fix the hexagonal block 7 and the thread block 6 together when the elastic limiting piece 5 is pulled, so that the elastic limiting piece 5 is kept in a pulled state, and the nut 2 is convenient to take out. The user also can insert spacing bolt 10 when elasticity spacing piece 5 is ejecting and nut 2 is installed to let elasticity spacing piece 5 keep in ejecting state, just also can keep the butt to anti-loosening groove 3, ensured locking effect. The limiting bolt 10 is provided with a plurality of stabilizing blocks 11, the hexagonal block 7 is provided with a stabilizing groove 12 which is in transition fit with the stabilizing blocks 11, and due to the transition fit of the stabilizing groove and the hexagonal block, the limiting bolt 10 can be stabilized, and the limiting bolt 10 can be taken out when needed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The utility model provides an anti bolt assembly that moves with self-locking effect, includes bolt (1) and nut (2), its characterized in that: the nut is characterized in that a plurality of anti-loosening grooves (3) are arranged on the bolt (1) in a surrounding and uniform mode, the anti-loosening grooves (3) are in a ratchet shape, a plurality of grooves (4) are arranged on the thread surface in the nut (2) in a surrounding mode, and elastic limiting pieces (5) matched with the anti-loosening grooves (3) are arranged in the grooves (4).

2. The self-locking anti-loosening bolt assembly according to claim 1, wherein: one end of the elastic limiting piece (5) is fixedly connected with the nut (2), the other end of the elastic limiting piece is a movable end, and the movable end of the elastic limiting piece (5) faces the vertical plane of the ratchet of the anti-loosening groove (3).

3. The self-locking anti-loosening bolt assembly according to claim 1, wherein: the nut (2) is provided with a limit-releasing component for driving the elastic limit sheet (5) to move.

4. The self-locking anti-loosening bolt assembly according to claim 3, wherein: nut (2) are including screw thread piece (6) and hexagonal piece (7), hexagonal piece (7) cover is established on screw thread piece (6), and rotates with screw thread piece (6) and be connected, it includes a plurality of connecting rods (8) to separate the limit subassembly, the both ends of connecting rod (8) rotate with expansion end and hexagonal piece (7) of the spacing piece of elasticity (5) respectively and are connected.

5. The self-locking anti-loosening bolt assembly according to claim 4, wherein: be provided with a plurality of spacing grooves (9) on nut (2), spacing groove (9) extend to on screw thread piece (6) from the side of hexagonal piece (7), be provided with on nut (2) with spacing groove (9) matched with spacing bolt (10), be provided with on spacing bolt (10) and be used for firm piece (11) of firm bolt, be provided with on hexagonal piece (7) and stabilize piece (11) transition fit's firm groove (12).

6. The anti-loosening bolt assembly with the self-locking effect according to claim 1, is characterized in that: a plurality of compensation gaskets (13) are arranged on the bolt (1).