CN209908960U

CN209908960U - Locknut system

Info

Publication number: CN209908960U
Application number: CN201920266034.3U
Authority: CN
Inventors: 雷新德
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2020-01-07
Anticipated expiration: 2029-03-01

Abstract

The embodiment of the utility model discloses locknut system belongs to mechanical fastener technical field, and its technical scheme is as follows, including bolt and nut, be equipped with the spacing groove on the lateral wall of bolt, the axial setting of bolt is followed to the spacing groove, be equipped with the locking device that moves that hinders the nut reversal on the bolt on one side of nut, the locking device joint that moves is fixed to the spacing inslot for after solving the current bolt and nut that utilizes and fix the work piece, the nut easily takes place to turn over and leads to the not hard up problem of nut not hard up phenomenon.

Description

Locknut system

Technical Field

The utility model relates to a mechanical fastener technical field, concretely relates to locknut system.

Background

The bolt is a mechanical fastener commonly used in the current mechanical installation process, when two workpieces driven by specific are fixed, the bolt and the nut can be stably fixed by using the bolt and the nut, the bolt and the nut are convenient to use, and when the workpieces are disassembled, the two workpieces can be disassembled by unscrewing the nut, so that the operation is simple.

After two specific workpieces are fixed together by using the bolt, when the two workpieces are influenced by the outside, the nut may be reversed relative to the bolt, so that the nut is loosened, and the two workpieces cannot be fixed together relatively tightly. At present, in order to prevent the phenomenon that the nut on the bolt is loosened due to the fact that the nut is reversed, a worker can destroy a thread structure on the bolt after the bolt and the nut are utilized to fix two specific workpieces relatively, so that the nut is difficult to reverse, the nut is difficult to loosen, certain damage can be caused to the bolt by the utilization of the mode, and the bolt is further used after the influence is caused.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a locknut system for after solving and having now utilized bolt and nut to fix the work piece, the nut easily takes place to turn over and leads to the not hard up problem of phenomenon of nut.

In order to achieve the above object, an embodiment of the present invention provides a lock nut system, including bolt and nut, be equipped with the spacing groove on the lateral wall of bolt, the axial setting of bolt is followed to the spacing groove, be equipped with the locking device that hinders the nut reversal on the bolt on one side of nut, the locking device joint is fixed to the spacing inslot.

Furthermore, the anti-loosening device comprises two arc-shaped elastic pieces, wherein one ends of the two elastic pieces are respectively fixed to the side faces of the nuts, the two elastic pieces are symmetrical with each other relative to the center of the nuts, the other ends of the two elastic pieces are respectively and integrally connected with the pawl, two limiting grooves are formed in the side wall of the bolt, the limiting grooves are in pawl groove shapes, and the pawl is clamped into the limiting grooves.

Furthermore, a failure ring is arranged on one side face, provided with the elastic sheet, of the nut, two support rods are fixedly connected to the side face of the failure ring, an annular groove is formed in the side face of the nut, the annular groove is located between the edge of the nut through hole and the elastic sheet, and the two elastic sheets are inserted into the annular groove.

Further, the locking device that moves is including fixing two gag lever posts that are L shape on a nut side, two the central symmetry of the relative nut of gag lever post, one side that is equipped with the gag lever post of nut still is equipped with the transition ring, two outside body coupling of transition ring have outer splines, and two outer splines the central symmetry of the relative transition ring of handle, and two outer splines respectively the joint to two gag lever posts, still fixedly connected with in the transition ring splines the handle, the spacing groove is the structure of character cut in bas-relief, in spline the spacing inslot.

Furthermore, the transition ring and the limiting rod are made of metal materials.

Furthermore, the surface of the transition ring is provided with an antirust protective layer.

Furthermore, an annular covering ring is arranged on the outer side of the transition ring, the end part of the outer rotation stopping handle is fixedly connected to the side wall of the covering ring, and a sealing sheet is fixedly connected to one side face of the covering ring.

Further, a spring washer is arranged at the position, between the bolt head and the nut, of the bolt.

The embodiment of the utility model provides a have following advantage: through the setting of locking device that moves, after screwing the nut on the bolt in order to fix the work piece, utilize locking device that moves to avoid the nut reversal to appear not hard up phenomenon, utilize this kind of device can not lead to the fact certain damage to nut and bolt simultaneously, and such locking device that moves reuse rate is higher, and life is longer, and the machining precision is lower relatively in addition, and it is also more convenient succinct to use.

Drawings

Fig. 1 is a schematic view of the overall structure provided in embodiment 1 of the present invention.

Fig. 2 is a schematic top view of a bolt provided in embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of a nut provided in embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of a failure ring provided in embodiment 1 of the present invention.

Fig. 5 is a schematic top view of a bolt provided in embodiment 2 of the present invention.

Fig. 6 is a schematic structural diagram of a nut provided in embodiment 2 of the present invention.

Fig. 7 is a schematic view of a transition ring structure provided in embodiment 2 of the present invention.

Fig. 8 is a schematic structural diagram of a transition ring provided in embodiment 3 of the present invention.

In the figure: 1. a bolt; 2. a nut; 3. a limiting groove; 41. an elastic sheet; 42. a pawl; 43. a failure ring; 44. a support bar; 45. an annular groove; 51. a limiting rod; 52. a transition ring; 53. an external rotation stopping handle; 54. an internal rotation stopping handle; 6. a cladding ring; 7. a spring washer.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Example 1

The utility model provides a locknut system, as 1, 2 show, including bolt 1 and nut 2, wherein be equipped with spacing groove 3 on the lateral wall of bolt 1, wherein spacing groove 3 sets up along the axial of bolt 1, be equipped with the locking device that moves that hinders nut 2 reversal on bolt 1 on one side of nut 2, and locking device joint is fixed to spacing inslot 3, after screwing nut 2 on bolt 1 and fixing specific work piece like this, utilize locking device can prevent nut 2 reversal and the phenomenon that becomes flexible appears.

As shown in fig. 1, a spring washer 7 is provided at a position of the bolt 1 between the head of the bolt 1 and the nut 2, and when a specific workpiece is fixed by the bolt 1 and the nut 2, the spring washer 7 is brought into contact with the workpiece, so that the contact area between the nut 2 and the workpiece can be increased, and the workpiece can be fixed more stably.

As shown in fig. 2 and 3, the anti-loosening device comprises two arc-shaped elastic pieces 41, one ends of the two elastic pieces 41 are respectively and fixedly connected to the side surface of the nut 2, the two elastic pieces 41 are symmetrical relative to the center of the nut 2, the other ends of the two elastic pieces 41 are respectively and integrally connected with pawls 42, the pawls 42 and the elastic pieces 41 form an angle of 30-80 degrees, the limiting groove 3 is in the shape of a pawl groove, two limiting grooves 3 are arranged on the bolt 1, and the pawls 42 are hooked and clamped in the limiting groove 3; when the nut 2 is used, the nut 2 is screwed on the bolt 1, then the pawl 42 is clamped into the limiting groove 3, and then the pawl 42 can be hooked and clamped into the limiting groove 3 relative to the nut 2 in a reverse rotation manner, so that the nut 2 cannot continuously reverse, and the phenomenon that the nut 2 is loosened is prevented; when the nut needs to be disassembled, the nut 2 only needs to be rotated forwards, so that the pawl 42 is separated from the limiting groove 3, and then the nut 2 can be screwed off from the bolt 1.

As shown in fig. 4, a failure ring 43 is arranged on one side surface of the nut 2 provided with the elastic sheet 41, two support rods 44 are fixedly connected to the side surface of the failure ring 43, an annular groove 45 is arranged on the side surface of the nut 2, the annular groove 45 is positioned between the edge of the through hole of the nut 2 and the elastic sheet 41, and the two support rods 44 are clamped in the annular groove 45; when the nut 2 needs to be detached from the bolt 1, the support rod 44 on the disable ring 43 can be firstly clamped into the annular groove 45, and then the disable ring 43 is rotated to stretch the elastic piece 41, so that the nut 2 can be detached without being influenced by the pawl 42.

When using this bolt 1 and nut 2, can insert the work piece earlier with bolt 1, later screw up bolt 1 with nut 2 to make pawl 42 hook to spacing inslot 3, the relative position of reversal nut 2 again makes pawl 42 hook chucking to spacing inslot 3, can be with stable the fixing on bolt 1 of nut 2 like this, prevents simultaneously that not hard up phenomenon from appearing in nut 2. When the nut 2 needs to be disassembled, the failure ring 43 is firstly used for clamping the nut 2, the supporting rod 44 is clamped in the annular groove 45, the elastic sheet 41 is expanded by rotating the failure ring 43, and then the nut 2 can be disassembled from the bolt 1.

Example 2

A locknut system is different from embodiment 1 in that, as shown in fig. 6 and 7, the anti-loosening device comprises two L-shaped limiting rods 51 fixed on one side surface of a bolt 1, the two limiting rods 51 are symmetrical relative to the center of the nut 2, a transition ring 52 is further arranged on one side of the nut 2 where the limiting rods 51 are arranged, two outer rotation stopping handles 53 are integrally connected to the outer side of the transition ring 52, the two outer rotation stopping handles 53 are symmetrical relative to the center of the transition ring 52, the two outer rotation stopping handles 53 are respectively clamped on the two limiting rods 51, an inner rotation stopping handle 54 is further fixedly connected in the transition ring 52, wherein the limiting groove 3 is in a concave structure (see fig. 5), the inner rotation stopping handle 54 is clamped on the limiting groove 3, and the diameter of the transition ring 32 plus the length of the two outer rotation stopping handles 53 is smaller than the width of the nut 2.

After screwing up nut 2 on bolt 1 in order to fix the work piece, can cup joint on bolt 1 transition ring 52 to make in the spline 54 joint spacing inslot 3, make transition ring 52 support tightly on the side of nut 2 after, make relative rotation nut 2 make outside spline 53 joint spacing pole 51 on, can make nut 2 can not reverse again like this, thereby with stable the fixing on bolt 1 of nut 2, prevent that nut 2 from reversing and appearing the not hard up phenomenon of nut 2.

The transition ring 52 and the limiting rod 51 are made of metal materials, so that the transition ring 52 and the limiting strength are better, and the transition ring and the limiting strength are not easy to damage after being mounted on the nut 2. In addition, the surface of the transition ring 52 is provided with a rust-proof protective layer, and the transition ring 52 can be protected to a certain extent by the arrangement of the rust-proof protective layer, so that the transition ring 52 is prevented from rusting and is difficult to detach from the bolt 1.

Example 3

A locknut system, which is different from embodiment 2 in that, as shown in fig. 8, an annular cladding ring 6 is provided on the outside of a transition ring 52, wherein the end of an outer anti-rotation knob 53 is fixedly connected to the side wall of the cladding ring 6, and a closing piece is fixedly connected to one side surface of the cladding ring 6; by arranging the closing sheet and the cladding ring 6, after the transition ring 52 is installed on the bolt 1, the end part of the bolt 1 can be completely clad, so that after the bolt 1 is used for fixing a workpiece, the threads on the bolt 1 can be subjected to waterproof and antifouling effects, and the service life of the bolt 1 is prolonged to a certain extent.

The utility model discloses a setting of locking device that moves is twisted nut 2 on bolt 1 in order to fix the work piece after, utilizes locking device that moves to avoid nut 2 reversal to appear not hard up phenomenon, utilizes this kind of device can not cause certain damage to nut 2 and bolt 1 simultaneously, and such locking device used repeatedly rate is higher, and life is longer, and the machining precision is lower relatively in addition, and it is also more convenient succinct to use.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A locknut system, includes bolt (1) and nut (2), characterized by: a limiting groove (3) is formed in the side wall of the bolt (1), the limiting groove (3) is arranged along the axial direction of the bolt (1), an anti-loosening device for preventing the nut (2) from reversing on the bolt (1) is arranged on one side face of the nut (2), and the anti-loosening device is clamped and fixed in the limiting groove (3);

the anti-loosening device comprises two arc-shaped elastic pieces (41), one ends of the two elastic pieces (41) are respectively fixed to the side face of the nut (2), the two elastic pieces (41) are symmetrical relative to the center of the nut (2), the other ends of the two elastic pieces (41) are respectively and integrally connected with a pawl (42), two limiting grooves (3) are formed in the side wall of the bolt (1), the limiting grooves (3) are in pawl groove shapes, and the pawls (42) are clamped in the limiting grooves (3);

or, locking device is including fixing two gag lever post (51) that are L shape on nut (2) a side, two the central symmetry of the relative nut (2) of gag lever post (51), one side that is equipped with gag lever post (51) of nut (2) still is equipped with transition ring (52), the outside body coupling of transition ring (52) has two outer rotation stopping handle (53), and two outer rotation stopping handle (53) central symmetry of transition ring (52) relatively, and two outer rotation stopping handle (53) block respectively to connect to two gag lever posts (51), still in fixedly connected with end rotation handle (54) in transition ring (52), spacing groove (3) are the structure of character cut in bas-relief, in-end rotation handle (54) joint is in spacing groove (3).

2. A locknut system as defined in claim 1, wherein: be equipped with failure ring (43) on the side that nut (2) was equipped with flexure strip (41), two bracing pieces (44) of side fixedly connected with of failure ring (43), nut (2) side is equipped with ring channel (45), ring channel (45) are in between nut (2) through-hole edge and flexure strip (41), and two flexure strips (41) insert in ring channel (45).

3. A locknut system as defined in claim 1, wherein: the transition ring (52) and the limiting rod (51) are made of metal materials.

4. A locknut system as defined in claim 1, wherein: and the surface of the transition ring (52) is provided with an antirust protective layer.

5. A locknut system as defined in claim 1, wherein: the outer side of the transition ring (52) is provided with an annular cladding ring (6), the end part of the outer rotation stopping handle (53) is fixedly connected to the side wall of the cladding ring (6), and one side surface of the cladding ring (6) is fixedly connected with a sealing sheet.

6. A locknut system as defined in claim 1, wherein: and a spring washer (7) is arranged at the position, between the head of the bolt (1) and the nut (2), of the bolt (1).