CN213176412U

CN213176412U - Anti-loosening fastener

Info

Publication number: CN213176412U
Application number: CN202021802954.1U
Authority: CN
Inventors: 吴铁牛
Original assignee: Qida Rail Transit Technology Co Ltd
Current assignee: Qida Rail Transit Technology Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-11
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a locking fastener, including fastening bolt and nut, fastening bolt and nut threaded connection, the fastening bolt bottom is seted up flutedly, the draw-in groove has been seted up on the lateral wall of recess, nut hinged joint has the connecting rod, connecting rod hinged joint has the fixture block, be provided with the spout on the fixture block, install fixed connection's spring in the spout, spring fixed connection has the spacing head, the below that the fixture block is located the spout has been seted up and has been dialled the mouth, be provided with the poker rod in the poker rod, poker rod upper end and spacing head fixed connection, left side poker rod lower extreme fixedly connected with loop bar, right side poker rod lower extreme fixedly connected with movable rod, be provided with first screw on the loop bar, be provided with the second screw on the movable rod. The utility model discloses a make fixture block and fastening bolt fixed in going into the draw-in groove with spacing head bullet to the effectual rotation that prevents nut and fastening bolt, and then reach locking effect.

Description

Anti-loosening fastener

Technical Field

The utility model relates to a fastener technical field specifically is a locking fastener.

Background

Cylindrical threaded fasteners fitted with nuts. The bolt is a cylindrical fastener with threads, the nut is a part which is screwed together by the screw rod to play a fastening role, and all production and manufacturing machines have to use one element which is divided into carbon steel, stainless steel, nonferrous metal and the like according to different materials.

In the prior art, a bolt is usually in threaded connection with a machined part, and then is in threaded connection with a nut, the machined part is located between a bolt head and the nut, and the bolt and the nut are in threaded connection, so that the machined part is easy to loosen due to long-time use or other factors, and adverse effects are brought.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locking fastener to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a locking fastener comprises a fastening bolt and a nut, wherein the fastening bolt is in threaded connection with the nut, a groove is formed in the bottom end of the fastening bolt, a clamping groove is formed in the side wall of the groove, the nut is in hinged connection with a connecting rod, a clamping block is in hinged connection with one end, far away from the nut, of the connecting rod, a sliding groove is formed in the clamping block, a fixedly connected spring is installed in the sliding groove, one end of the spring is fixedly connected with the clamping block, the other end of the spring is fixedly connected with a limiting head, the limiting head is matched with the clamping groove, a poking opening is formed in the clamping block, the clamping block is located below the sliding groove, a poking rod is arranged in the poking opening, the upper end of the poking rod is fixedly connected with the limiting head, a sleeve rod is fixedly connected to the lower end of the pok, the sleeve rod is provided with a first screw hole, and the movable rod is provided with a second screw hole.

Preferably, the clamping groove surrounds the groove in a ring shape.

Preferably, the nut is a hexagonal nut.

Preferably, the connecting rod is a telescopic rod with a limiting function.

Preferably, the first screw hole and the second screw hole have the same diameter and are provided with matched limiting bolts.

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

1. the utility model discloses when using, mediate movable rod and loop bar, make spacing head compression spring and contract completely to the spout through the poker rod, first screw coincides with the second screw this moment, use spacing bolt to twist in first screw and second screw, make spacing head card in the spout, insert fastening bolt in the hole of waiting to fasten the part again, the mounting nut, through constantly rotating the nut, make the nut fasten the part, the fixture block card is gone into in the recess this moment, unscrew spacing bolt again, the spring makes the fixture block fixed with fastening bolt with spacing head bullet income draw-in groove, thereby the rotation of nut and fastening bolt has effectively been prevented, and then reach locking effect;

2. the utility model discloses when needing to dismantle, can mediate movable rod and loop bar, make spacing head compression spring and contract completely to the spout through the poker rod, first screw and second screw coincidence this moment use during spacing bolt twists first screw and second screw, make spacing head card in the spout, twist the nut again and can accomplish the dismantlement, it is convenient to dismantle.

Drawings

FIG. 1 is a schematic view of an overall structure of a locking fastener of the present invention;

fig. 2 is an enlarged structure diagram of a position a in the anti-loose fastener of the present invention.

In the figure: 1. fastening a bolt; 2. a nut; 3. a connecting rod; 4. a clamping block; 5. a movable rod; 6. a groove; 7. a chute; 8. a card slot; 9. a limiting head; 10. a spring; 11. a poke rod; 12. a poke port; 13. a loop bar; 14. a first screw hole; 15. and a second screw hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-2, the present invention provides a technical solution: a locking fastener comprises a fastening bolt 1 and a nut 2, the fastening bolt 1 is in threaded connection with the nut 2, a groove 6 is formed in the bottom end of the fastening bolt 1, the groove 6 is a circular groove, a clamping groove 8 is formed in the side wall of the groove 6, the nut 2 is in hinged connection with a connecting rod 3, the number of the connecting rod 3 is 4, the connecting rod is evenly distributed, a clamping block 4 is in hinged connection with one end of the connecting rod 3, which is far away from the nut 2, the clamping block 4 is used for being clamped into the groove 6, two bilaterally symmetrical sliding grooves 7 are formed in the clamping block 4, a fixedly connected spring 10 is installed in each sliding groove 7, one end of each spring 10 is fixedly connected with the corresponding clamping block 4, a limiting head 9 is fixedly connected with the other end of each spring 10, the limiting head 9 is matched with the corresponding clamping groove 8, a poking opening 12 is formed in the clamping block 4, a poking rod 11 is, the lower end of the right poking rod 11 is fixedly connected with a movable rod 5, the movable rod 5 is movably sleeved in a sleeve rod 13, a first screw hole 14 is formed in the sleeve rod 13, a second screw hole 15 is formed in the movable rod 5, and when the limiting head 9 is completely contracted into the sliding groove 7, the movable rod 5 is contracted into the sleeve rod 13, and the first screw hole 14 and the second screw hole 15 are overlapped.

The clamping groove 8 surrounds the groove 6 in a circle in an annular mode, and therefore when the nut 2 is screwed in any direction, the limiting head 9 can be clamped into the clamping groove 8.

The nut 2 is a hexagon nut.

The connecting rod 3 is a telescopic rod with a limiting function, and articles with different thicknesses can be conveniently fastened.

The first screw hole 14 and the second screw hole 15 have the same diameter and are provided with matched limit bolts.

The working principle is as follows: when the utility model is used, the movable rod 5 and the loop bar 13 are kneaded, the limiting head 9 compresses the spring 10 and completely contracts into the chute 7 through the poking rod 11, at the moment, the first screw hole 14 is coincided with the second screw hole 15, the limiting bolt is screwed into the first screw hole 14 and the second screw hole 15, the limiting head 9 is clamped in the chute 7, the fastening bolt 1 is inserted into the hole of the part to be fastened, the nut 2 is installed, the nut 2 is fastened by continuously rotating the nut 2, at the moment, the clamping block 4 is clamped into the groove 6, the limiting bolt is unscrewed, the spring 10 ejects the limiting head 9 into the clamping groove 8 to fix the clamping block 4 and the fastening bolt 1, thereby effectively preventing the rotation of the nut 2 and the fastening bolt 1, and further achieving the anti-loosening effect, when the disassembly is needed, the movable rod 5 and the loop bar 13 can be kneaded, the limiting head 9 compresses the spring 10 and completely contracts into the chute 7 through the poking rod 11, at the moment, the first screw hole 14 coincides with the second screw hole 15, the first screw hole 14 and the second screw hole 15 are screwed in by using a limiting bolt, the limiting head 9 is clamped in the sliding groove 7, and then the nut 2 is screwed to finish the disassembly, so that the disassembly is convenient.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A check fastener comprising a fastening bolt (1) and a nut (2), characterized in that: the fastening bolt (1) is in threaded connection with the nut (2), a groove (6) is formed in the bottom end of the fastening bolt (1), a clamping groove (8) is formed in the side wall of the groove (6), the nut (2) is in hinged connection with the connecting rod (3), a clamping block (4) is in hinged connection with one end, far away from the nut (2), of the connecting rod (3), a sliding groove (7) is formed in the clamping block (4), a fixedly connected spring (10) is installed in the sliding groove (7), one end of the spring (10) is fixedly connected with the clamping block (4), the other end of the spring (10) is fixedly connected with a limiting head (9), the limiting head (9) is matched with the clamping groove (8), a poking opening (12) is formed in the position of the clamping block (4) below the sliding groove (7), a poking rod (11) is arranged in the poking opening (12), the upper end of the poking rod (11) is fixedly, the left side poking rod (11) lower extreme fixedly connected with loop bar (13), right side poking rod (11) lower extreme fixedly connected with movable rod (5), movable rod (5) activity cup joints in loop bar (13), be provided with first screw (14) on loop bar (13), be provided with second screw (15) on movable rod (5).

2. A loose-proof fastener as claimed in claim 1, characterized in that: the clamping groove (8) surrounds the groove (6) in a ring shape.

3. A loose-proof fastener as claimed in claim 1, characterized in that: the nut (2) adopts a hexagon nut.

4. A loose-proof fastener as claimed in claim 1, characterized in that: the connecting rod (3) is a telescopic rod with a limiting function.

5. A loose-proof fastener as claimed in claim 1, characterized in that: the first screw hole (14) and the second screw hole (15) are the same in diameter and are provided with matched limiting bolts.