CN220816203U

CN220816203U - Fastener with interlock locking structure

Info

Publication number: CN220816203U
Application number: CN202322253274.9U
Authority: CN
Inventors: 蔡洁华
Original assignee: Dongguan Changjun Industrial Co ltd
Current assignee: Dongguan Changjun Industrial Co ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-04-19
Anticipated expiration: 2033-08-22

Abstract

The utility model discloses a fastener with an occlusion locking structure, which comprises a bolt, wherein the lower side of the outer wall of the bolt is in threaded connection with a positive wire nut, a reverse wire limiting block is arranged below the positive wire nut and in threaded connection with the bolt, the fastener also comprises a fastening block which is welded at the lower end of the positive wire nut, the fastening block is in threaded connection with the reverse wire limiting block, two sides of the inside of the fastening block are provided with transmission cavities, the lower sides of the inside of the transmission cavities are both welded with first sliding rods, one side of the inside of the transmission cavities is provided with L-shaped moving blocks, one end of each L-shaped moving block penetrates through and extends to the outside of the transmission cavity, and each L-shaped moving block is in sliding fit with the transmission cavity. The fastener with the occlusion locking structure effectively avoids loosening of the positive nut after long-time use, avoids potential safety hazards and improves safety.

Description

Fastener with interlock locking structure

Technical Field

The utility model relates to the technical field of fasteners, in particular to a fastener with a snap locking structure.

Background

The fastener is a generic term for mechanical parts used when two or more parts are fastened and connected into a whole, is a mechanical part used for fastening and connecting and has extremely wide application, has wide application industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, articles and the like, and is the most widely applied mechanical base.

The prior Chinese patent with the publication number of CN215720099U discloses a fastener which comprises a screw rod and a sleeve, wherein the screw rod and the sleeve are both made of metal materials, and a first hole structure extending to one end part of the sleeve is arranged in the sleeve; the screw rod axially penetrates through the first hole structure and is in threaded connection with the first hole structure, a part of the screw rod penetrates out of the first hole structure and extends outwards from the sleeve, and the tail end of the screw rod extending outwards is of a plane structure.

The scheme is that the tail end of the screw rod is a plane, key parts of a high-precision product cannot be damaged when the screw rod is used, but the fastener lacks a locking effect on the nut, the nut is easy to rotate after long-time use to loosen, a fastening effect is poor, a certain potential safety hazard can be generated, and therefore the existing requirement is not met, and a fastener with an engagement locking structure is provided.

Disclosure of utility model

The utility model aims to provide a fastener with a snap locking structure, so as to solve the problem that nuts are easy to rotate and loose after the fastener is used for a long time.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the fastener with the occlusion locking structure comprises a bolt, wherein a positive screw nut is connected to the lower side of the outer wall of the bolt in a threaded manner, a reverse screw limiting block is arranged below the positive screw nut, and the reverse screw limiting block is connected with the bolt in a threaded manner;

The device comprises a positive wire nut, a positive wire limiting block, a negative wire limiting block, a transmission cavity, a first sliding rod, a second sliding rod, a first sliding rod and a second sliding rod, wherein the positive wire nut is welded at the lower end of the positive wire limiting block, the positive wire nut is in threaded connection with the negative wire limiting block, the transmission cavity is formed in two sides of the inside of the fastening block, the first sliding rod is welded at the lower side of the inside of the transmission cavity, one side of the inside of the transmission cavity is provided with the L-shaped moving block, one end of the L-shaped moving block penetrates through and extends to the outside of the transmission cavity, the L-shaped moving block is in sliding fit with the transmission cavity, the first sliding rod penetrates through one end of the L-shaped moving block in the transmission cavity, and the first sliding rod is in sliding fit with the L-shaped moving block;

The novel transmission device comprises a transmission cavity, and is characterized by further comprising a trapezoid block, wherein the trapezoid block is arranged on two sides of the fastening block, connecting plates are welded at the upper end and the lower end of the inner side of the trapezoid block, one end of each connecting plate penetrates through and extends to the inside of the transmission cavity, and the connecting plates are welded and fixed with one end of the L-shaped movable block, which is positioned in the transmission cavity.

Preferably, the annular bevel edge is arranged in the anti-silk limiting block, and the annular bevel edge is matched with the trapezoid block.

Preferably, the second slide bars are welded above the first slide bars, the second slide bars penetrate through one end of the L-shaped moving block, which is located in the transmission cavity, and the second slide bars are in sliding fit with the L-shaped moving block.

Preferably, the arc-shaped clamping blocks are welded at one ends of the L-shaped moving blocks, which are positioned outside the transmission cavity.

Preferably, one of the arc clamping blocks is welded with a butt joint clamping block on the front and rear sides of one side, the other arc clamping block is provided with a butt joint groove on the front and rear sides of one side inside the arc clamping block, the butt joint groove is matched with the butt joint clamping block, and the inside of the butt joint groove is fixedly adhered with a magnetic iron sheet.

Preferably, the outside of first slide bar all overlaps and is equipped with reset spring, reset spring's one end all is connected with the transmission chamber, and reset spring's the other end all is connected with L type movable block.

Preferably, the outside of positive silk nut lower extreme has a plurality of equidistance to distribute the tooth's socket, the outside of anti-silk stopper upper end is provided with the protruding tooth of a plurality of equidistance to distribute, and protruding tooth all with tooth's socket looks adaptation.

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

1. According to the utility model, the reverse wire limiting block is arranged below the positive wire nut, the reverse wire limiting block can be rotated after the positive wire nut is fixed to limit an object, the trapezoid block can be extruded by the annular oblique side by moving the reverse wire limiting block, so that the trapezoid block drives the L-shaped moving block to move in opposite directions, the bolts can be engaged and clamped by the two clamping blocks which move in opposite directions, the positive wire nut can be limited and synchronously fixed, loosening of the positive wire nut after long-time use is effectively avoided, potential safety hazards are avoided, and safety is improved.

2. According to the utility model, the butt joint clamping blocks are welded on the front side and the rear side of one side of the arc clamping blocks, the front side and the rear side of one side of the inner part of the other arc clamping block are provided with the butt joint grooves, when the two arc clamping blocks move in opposite directions to clamp the bolts in a clamping way, the butt joint clamping blocks can move into the butt joint grooves, so that the butt joint clamping blocks can be clamped, and then the connection firmness of the butt joint clamping blocks and the butt joint grooves can be effectively increased through the magnetic attraction of the magnetic iron sheets, so that the connection firmness of the two arc clamping blocks is increased, and the fixing effect on the bolts is improved.

3. According to the utility model, the plurality of tooth grooves which are distributed at equal intervals are formed on the outer side of the lower end of the positive screw nut, when the reverse screw limiting block moves upwards to limit the positive screw nut, the convex teeth at the upper end of the reverse screw limiting block are meshed with the tooth grooves, so that loosening of the positive screw nut can be avoided, meanwhile, the thread directions of the reverse screw limiting block and the positive screw nut are opposite, the reverse screw limiting block and the positive screw nut are difficult to loosen, and the stability is improved.

Drawings

FIG. 1 is a front elevational view of the overall structure of the present utility model;

FIG. 2 is a front view of the internal structure of the present utility model;

FIG. 3 is a bottom view of the positive nut structure of the present utility model;

FIG. 4 is an enlarged view of a portion of the area B of FIG. 2 in accordance with the present utility model;

Fig. 5 is an enlarged view of a portion of the area a of fig. 2 in accordance with the present utility model.

In the figure: 1. a bolt; 2. a positive wire nut; 3. a reverse thread limiting block; 4. a fastening block; 5. a transmission cavity; 6. a first slide bar; 7. a second slide bar; 8. an L-shaped moving block; 9. a return spring; 10. a connecting plate; 11. a trapezoid block; 12. tooth slots; 13. convex teeth; 14. an arc-shaped clamping block; 15. a butt joint groove; 16. butting clamping blocks; 17. a magnetic iron sheet; 18. annular bevel edge.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the fastener with the occlusion locking structure comprises a bolt 1, wherein a positive screw nut 2 is connected to the lower side of the outer wall of the bolt 1 in a threaded manner, a reverse screw limiting block 3 is arranged below the positive screw nut 2, and the reverse screw limiting block is connected with the bolt 1 in a threaded manner;

The novel nut driving device comprises a nut driving cavity, a first sliding rod 6, an L-shaped moving block 8, a driving cavity 5 and a driving cavity 5, wherein the driving cavity 4 is welded at the lower end of the nut driving nut 2, the driving block 4 is in threaded connection with the driving cavity 3, the driving cavity 5 is formed in two sides of the inside of the driving cavity 5, the first sliding rod 6 is welded at the lower side of the inside of the driving cavity 5, one end of the L-shaped moving block 8 penetrates through and extends to the outside of the driving cavity 5, the L-shaped moving block 8 is in sliding fit with the driving cavity 5, the first sliding rod 6 penetrates through one end of the L-shaped moving block 8, which is located in the driving cavity 5, and the first sliding rod 6 is in sliding fit with the L-shaped moving block 8;

still include trapezoidal piece 11, it sets up the both sides of fastening piece 4, and the inboard upper and lower end of trapezoidal piece 11 all welds connecting plate 10, and the one end of connecting plate 10 all runs through and extends to the inside of transmission chamber 5, and connecting plate 10 all is located the one end welded fastening of transmission chamber 5 with L type movable block 8.

During the use, upwards rotate anti-silk stopper 3, anti-silk stopper 3 can make annular hypotenuse 18 shift up in step, extrude trapezoidal piece 11, trapezoidal piece 11 can make L type movable block 8 remove towards the direction of bolt 1 under the connection of connecting plate 10, can synchronous fixing bolt 1 when spacing to positive silk nut 2 to can drive the removal that L type movable block 8 is in opposite directions, carry out interlock centre gripping to bolt 1, effectively avoided positive silk nut 2 to use the back not hard up for a long time, avoid producing the potential safety hazard, improved the security.

Referring to fig. 5, the inside of the opposite wire limiting block 3 is provided with an annular bevel edge 18, the annular bevel edge 18 is matched with the trapezoid block 11, and upward movement of the annular bevel edge 18 can synchronously squeeze the trapezoid block 11, so that opposite movement of the two L-shaped movable blocks 8 is realized;

Referring to fig. 5, a second slide bar 7 is welded above the first slide bar 6, the second slide bar 7 penetrates through the L-shaped moving block 8 and is located at one end of the inside of the transmission cavity 5, the second slide bar 7 is in sliding fit with the L-shaped moving block 8, and the second slide bar 7 can limit the direction of the L-shaped moving block 8 to avoid the direction deviation when the L-shaped moving block 8 moves;

Referring to fig. 3, one end of the l-shaped moving block 8, which is located outside the transmission cavity 5, is welded with arc-shaped clamping blocks 14, and the two arc-shaped clamping blocks 14 can be moved in opposite directions to fix the bolt 1 in a meshed manner;

Referring to fig. 3 and 4, a docking fixture block 16 is welded on the front and rear sides of one side of one arc-shaped clamping block 14, a docking slot 15 is formed on the front and rear sides of one side of the inside of the other arc-shaped clamping block 14, the docking slot 15 is matched with the docking fixture block 16, magnetic iron sheets 17 are adhered and fixed in the docking slot 15, the docking fixture block 16 is made of iron materials, the docking of the docking fixture block 16 and the docking slot 15 can increase the connection firmness between the two arc-shaped clamping blocks 14, and the magnetic iron sheets 17 can further improve the connection firmness with the docking fixture block 16;

Referring to fig. 5, the outside of the first slide bar 6 is sleeved with a return spring 9, one end of the return spring 9 is connected with the transmission cavity 5, the other end of the return spring 9 is connected with the L-shaped moving block 8, and the elastic restoring action of the return spring 9 can enable the L-shaped moving block 8 to move towards two sides, so that automatic restoration is realized, and the use is convenient;

Referring to fig. 3 and 5, a plurality of tooth grooves 12 are formed in the outer side of the lower end of the positive wire nut 2, a plurality of convex teeth 13 are formed in the outer side of the upper end of the negative wire limiting block 3, the convex teeth 13 are matched with the tooth grooves 12, and the convex teeth 13 and the tooth grooves 12 are meshed to limit the positive wire nut 2 better.

Working principle: when in use, the bolt 1 passes through an object to be fixed and is fixed by screwing in the positive screw nut 2, the positive screw nut 2 is fixed, the reverse screw limiting block 3 is reversely screwed into the bolt 1, the reverse screw limiting block 3 moves towards the direction of the positive screw nut 2, so that the trapezoid block 11 can be extruded through the synchronous upward movement of the annular bevel edge 18, the trapezoid block 11 can move inwards after being extruded, the L-shaped moving block 8 can be extruded and pushed through the connection of the connecting plate 10, the L-shaped moving block 8 can move to extrude the reset spring 9, the direction deviation when the L-shaped moving block 8 moves can be effectively avoided under the limiting effect of the second sliding rod 7, the L-shaped moving blocks 8 at two sides can move linearly in opposite directions, the L-shaped moving block 8 can drive the synchronous movement of the arc-shaped clamping blocks 14 when moving, so that the two arc-shaped clamping blocks 14 move oppositely to clamp the middle bolt 1, so that the bolt can be firmly fixed, the connection firmness between the bolt 1 and the positive screw nut 2 can be increased, the loosening of the positive screw nut 2 is avoided, the butt joint clamping block 16 can move into the butt joint groove 15 after the two arc clamping blocks 14 are contacted with each other, so that the clamping can be carried out, the connection firmness between the two arc clamping blocks 14 is improved, the magnetic iron sheet 17 can adsorb the butt joint clamping block 16 through magnetic force, the connection firmness between the two arc clamping blocks 14 is further improved, the positive screw nut 2 can be limited after the negative screw limiting block 3 moves upwards, the loosening of the positive screw nut 2 is avoided, the positive screw nut 2 and the negative screw limiting block 3 are difficult to rotate simultaneously due to the opposite screw directions of the positive screw nut 2 and the negative screw limiting block 3, the stability is improved, the convex teeth 13 can be mutually meshed with the tooth grooves 12 after the positive screw nut 2 and the negative screw limiting block 3 are attached, further avoided positive silk nut 2 not hard up, the security improves, when dismantling anti-silk stopper 3, because anti-silk stopper 3's downmovement can make annular hypotenuse 18 synchronous downmovement, trapezoidal piece 11 can lose spacingly, so can make L type movable block 8 remove towards opposite direction under reset spring 9's elastic recovery effect, and then can drive arc grip block 14 separation, can remove the fixed to bolt 1 voluntarily, make dismantlement convenient and fast, convenient to use.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Claims

1. The utility model provides a fastener with interlock locking structure, includes bolt (1), the downside threaded connection of bolt (1) outer wall has positive silk nut (2), the below of positive silk nut (2) is provided with anti-silk stopper (3), and anti-silk stopper and bolt (1) threaded connection, its characterized in that:

The novel nut comprises a nut body, and is characterized by further comprising a fastening block (4), wherein the fastening block is welded at the lower end of the positive wire nut (2), the fastening block (4) is in threaded connection with a reverse wire limiting block (3), two sides of the inside of the fastening block (4) are provided with a transmission cavity (5), the lower side of the inside of the transmission cavity (5) is welded with a first sliding rod (6), one side of the inside of the transmission cavity (5) is provided with an L-shaped moving block (8), one end of the L-shaped moving block (8) penetrates through and extends to the outside of the transmission cavity (5), the L-shaped moving block (8) is in sliding fit with the transmission cavity (5), the first sliding rod (6) penetrates through one end of the inside of the L-shaped moving block (8), and the first sliding rod (6) is in sliding fit with the L-shaped moving block (8).

Still include trapezoidal piece (11), it sets up the both sides of fastening piece (4), the inboard upper and lower end of trapezoidal piece (11) all welds connecting plate (10), the one end of connecting plate (10) all runs through and extends to the inside of transmission chamber (5), and connecting plate (10) all are located the one end welded fastening of transmission chamber (5) with L type movable block (8).

2. A fastener with snap-lock feature as claimed in claim 1 wherein: annular bevel edges (18) are formed in the anti-thread limiting blocks (3), and the annular bevel edges (18) are matched with the trapezoid blocks (11).

3. A fastener with snap-lock feature as claimed in claim 1 wherein: the top of first slide bar (6) has all welded second slide bar (7), second slide bar (7) all run through L type movable block (8) and are located the inside one end of transmission chamber (5), and second slide bar (7) all with L type movable block (8) sliding fit.

4. A fastener with snap-lock feature as claimed in claim 1 wherein: one end of the L-shaped moving block (8) positioned outside the transmission cavity (5) is welded with an arc-shaped clamping block (14).

5. A fastener with snap-lock feature as claimed in claim 4 wherein: one of them arc grip block (14) front and back side welding has butt joint fixture block (16), and wherein another arc grip block (14) inside front and back side has seted up butt joint groove (15), and butt joint groove (15) all with butt joint fixture block (16) looks adaptation, the inside all adhesion of butt joint groove (15) is fixed with magnetic iron sheet (17).

6. A fastener with snap-lock feature as claimed in claim 1 wherein: the outside of first slide bar (6) all overlaps and is equipped with reset spring (9), reset spring (9) one end all is connected with transmission chamber (5), and reset spring (9) the other end all is connected with L type movable block (8).

7. A fastener with snap-lock feature as claimed in claim 1 wherein: the outer side of positive silk nut (2) lower extreme has tooth's socket (12) of a plurality of equidistance distribution, the outer side of anti-silk stopper (3) upper end is provided with protruding tooth (13) of a plurality of equidistance distribution, and protruding tooth (13) all with tooth's socket (12) looks adaptation.