CN218266735U

CN218266735U - Locknut fastener

Info

Publication number: CN218266735U
Application number: CN202222413799.XU
Authority: CN
Inventors: 王克礼; 詹伟
Original assignee: Wenzhou Wansheng Fastener Co ltd
Current assignee: Wenzhou Wansheng Fastener Co ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-01-10
Anticipated expiration: 2032-09-13

Abstract

The utility model provides a locknut fastener, including bolt and nut, the bolt comprises bolt head and screw rod, and nut threaded connection is on the screw rod, and the nut is the annular structure of circle, including annular rotation piece, rotates a rotatable coupling on the nut, sets up constant head tank one along its axial direction on the lateral wall of screw rod, the inside wall of rotation piece on be equipped with constant head tank two, still include the locating pin, the locating pin is pegged graft in constant head tank one and constant head tank two. The nut is in threaded connection with the screw, and the rotatable rotating part is connected to the nut, so that the second positioning groove is aligned with the first positioning groove by adjusting the rotating part, and then the positioning pin is inserted to position and fix the nut and the screw.

Description

Locknut fastener

Technical Field

The utility model relates to a hardware fastening spare technical field, concretely relates to locknut fastener.

Background

The nut is a hardware for connecting the equipment parts together, and is fixedly connected through the adhesion of the nut and the bolt.

A bolt and nut fastener is disclosed in patent application No. CN 2011103681364. The bolt and the nut are respectively provided with a groove, when the two grooves on the bolt and the nut are aligned, a pin block is inserted, and the bolt and the nut are prevented from being loosened in a rotating mode through the pin block.

However, in the use of the fastener of the above structure, when the nut is tightened to a fastening position, there is a problem that the grooves of the bolt and the nut are not aligned, so that the pin block cannot be inserted.

SUMMERY OF THE UTILITY MODEL

To the problem pointed out in the background art, the utility model provides a locknut fastener to solve above-mentioned technical problem.

The technical scheme of the utility model is realized like this:

the utility model provides a locknut fastener, includes bolt and nut, and the bolt comprises bolt head and screw rod, and nut threaded connection is on the screw rod, and the nut is ring shape structure, including annular rotation piece, rotates a rotatable coupling on the nut, sets up constant head tank one along its axial direction on the lateral wall of screw rod, the inside wall of rotation piece on be equipped with constant head tank two, still include the locating pin, the locating pin is pegged graft in constant head tank one and constant head tank two.

Through adopting above-mentioned technical scheme, when constant head tank one aligns with constant head tank two, the locating pin can insert in constant head tank one and constant head tank two, makes nut and screw rod fixed in circumference, forms mechanical anti loosening structure. In the structure, when the nut is screwed, whether the first positioning groove is aligned with the second positioning groove is not required to be considered, and when the nut is screwed, the rotating piece is driven to rotate, so that the first positioning groove is aligned with the second positioning groove, the positioning pin can be inserted, and positioning and fixing are completed.

The utility model discloses further set up to, a terminal surface of nut on be equipped with along its axial convex go-between, the external diameter of go-between is less than the external diameter of nut, the rotation piece threaded connection on the go-between.

Through adopting above-mentioned technical scheme, rotate go-between threaded connection on piece and the nut for rotate the piece and can rotate the regulation, again can fixed connection on the nut, can not take place to rotate at will.

The utility model discloses further set up to, the medial surface of the one end of rotation piece on be equipped with annular location portion, the internal diameter of location portion equals the internal diameter of nut, constant head tank two set up in location portion.

By adopting the technical scheme, the inner diameter of the positioning part is equal to that of the nut, so that the positioning groove II in the positioning part can be in a butt joint communication state with the positioning groove I to form a closed-loop groove for the insertion of the positioning pin.

The utility model discloses further set up to, rotation piece and go-between threaded connection, be equipped with the external screw thread on the lateral wall of go-between, be equipped with the internal thread on the inside wall of rotation piece.

The utility model discloses further set up to, the locating pin be rectangular shape, still include annular solid fixed ring, gu fixed ring's internal diameter equals the diameter of screw rod, the locating pin sets up on solid fixed ring, gu when fixed ring overlaps on the screw rod, the locating pin can insert in constant head tank one and constant head tank two.

Through adopting above-mentioned technical scheme, gu fixed ring can strengthen the stability that the locating pin is connected, the grafting that makes the locating pin can be stable is at constant head tank one and constant head tank two, and difficult emergence is dropped, gu fixed ring can use glue and rotate a piece fixed connection.

The utility model discloses further set up to, the both ends of locating pin set up with solid fixed ring interval respectively, the one end of locating pin equals or is less than location portion at the axial thickness of screw rod to solid fixed ring's distance, the other end of locating pin is greater than location portion at the axial thickness of screw rod to solid fixed ring's distance.

The utility model discloses further set up to, the one end of locating pin extend the location strip forward, the location strip can stretch into the fixed position groove one.

Through adopting above-mentioned technical scheme, form location structure respectively in the both sides of solid fixed ring for location structure is more reliable and more stable.

Adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model provides a locknut fastener, its nut and screw rod threaded connection connect rotatable rotation piece on the nut, just so can make constant head tank two align with constant head tank one through adjusting rotation piece, insert the locating pin again, fix a position fixedly nut and screw rod.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic structural view of a first embodiment of the positioning pin of the present invention.

Fig. 4 is a schematic structural view of a second embodiment of the positioning pin of the present invention;

fig. 5 is a schematic structural view of a third embodiment of the positioning pin of the present invention.

The reference numbers in the figures indicate: a nut-1; bolt-21; screw-22; a rotor-3; a connecting ring-11; a positioning portion-31; positioning a first groove-221; positioning a second groove 32; positioning pin-4; a fixing ring-5; positioning strip-6.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts belong to the protection scope of the present invention.

The present invention is described below with reference to fig. 1-5:

the utility model provides a locknut fastener, includes bolt and nut 1, and the bolt comprises bolt head 21 and screw rod 22, and nut 1 threaded connection is on screw rod 22, and nut 1 is the annular structure. The outer side wall of the screw 22 is provided with a first positioning groove 221 along the axial direction.

Still include the annular piece 3 that rotates of circle, it is on nut 1 to rotate 3 threaded connection, be equipped with on the terminal surface of nut 1 along its convex go-between 11 of axial, the external diameter of go-between 11 is less than nut 1's external diameter, go-between 11's internal diameter equals nut 1's internal diameter, it is on go-between 11 to rotate 3 threaded connection, be equipped with the external screw thread on go-between 11's the lateral wall, be equipped with the internal thread on the inside wall of rotation piece 3, the external diameter of rotating piece 3 equals nut 1's external diameter. An annular positioning part 31 is arranged on the inner side surface of one end of the rotating part 3, the inner diameter of the positioning part 31 is equal to that of the nut 1, and a second positioning groove 32 is arranged on the inner wall of the positioning part 31.

The positioning device further comprises a positioning pin 4, and the positioning pin 4 is inserted in the first positioning groove 221 and the second positioning groove 32.

The positioning pin 4 has the following embodiments:

referring to fig. 3, the positioning pin 4 is implemented as follows: the positioning pin 4 is of a long strip-shaped structure, the positioning pin 4 is inserted into the first positioning groove 221 and the second positioning groove 32, one end of the positioning pin 4 abuts against the end face of the connecting ring 11, and the other end of the positioning pin 4 is flush with the outer side face of the positioning portion 31 or extends to the outer side of the positioning portion 31.

Referring to fig. 4, the second embodiment of the positioning pin 4: locating pin 4 is rectangular shape, still includes annular solid fixed ring 5, and solid fixed ring 5's internal diameter equals the diameter of screw rod 22, and solid fixed ring 5's external diameter equals the external diameter of nut 1, and locating pin 4 sets up on solid fixed ring 5, and solid fixed ring 5 overlaps when the screw rod 22, and locating pin 4 can insert in constant head tank 221 and constant head tank two 32. The two ends of the positioning pin 4 are respectively arranged at intervals with the fixing ring 5, the distance from one end of the positioning pin 4 to the fixing ring 5 is equal to or less than the axial thickness of the positioning part 31 in the screw 22, and the distance from the other end of the positioning pin 4 to the fixing ring 5 is greater than the axial thickness of the positioning part 31 in the screw 22. The second embodiment is different from the first embodiment in that the second embodiment has one more feature fixing ring 5.

Referring to fig. 5, the third embodiment of the positioning pin 4: one end of the positioning pin 4 extends forwards to form a positioning strip 6, and the positioning strip 6 can extend into the first positioning groove 221. The third embodiment is different from the second embodiment in that the third embodiment has one more feature positioning strip 6.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a locknut fastener, includes bolt and nut, and the bolt comprises bolt head and screw rod, and nut threaded connection is on the screw rod, and the nut is the round annular structure, its characterized in that: including annular rotation piece, rotate a rotatable coupling on the nut, set up constant head tank one along its axial direction on the lateral wall of screw rod, the inside wall of rotation piece on be equipped with constant head tank two, still include the locating pin, the locating pin is pegged graft in constant head tank one and constant head tank two.

2. A locknut fastener as claimed in claim 1, wherein: one end face of the nut is provided with a connecting ring protruding along the axial direction of the nut, the outer diameter of the connecting ring is smaller than that of the nut, and the rotating piece is in threaded connection with the connecting ring.

3. A locknut fastener as defined in claim 2, wherein: the inner side face of one end of the rotating part is provided with an annular positioning part, the inner diameter of the positioning part is equal to that of the nut, and the second positioning groove is formed in the positioning part.

4. A locknut fastener as defined in claim 3, wherein: the rotating piece is in threaded connection with the connecting ring, external threads are arranged on the outer side wall of the connecting ring, and internal threads are arranged on the inner side wall of the rotating piece.

5. A locknut fastener as claimed in claim 3, wherein: the locating pin be rectangular shape, still include annular solid fixed ring, gu fixed ring's internal diameter equals the diameter of screw rod, the locating pin sets up on solid fixed ring, gu when fixed ring overlaps on the screw rod, the locating pin can insert in constant head tank one and constant head tank two.

6. A locknut fastener as claimed in claim 5, wherein: the two ends of the positioning pin are respectively arranged at intervals with the fixing rings, the distance from one end of the positioning pin to the fixing rings is equal to or less than the axial thickness of the positioning part of the screw, and the distance from the other end of the positioning pin to the fixing rings is greater than the axial thickness of the positioning part of the screw.

7. A locknut fastener as claimed in claim 6, wherein: one end of the positioning pin extends forwards to form a positioning strip, and the positioning strip can extend into the first positioning groove.