CN211398210U

CN211398210U - Non-return self-locking round nut

Info

Publication number: CN211398210U
Application number: CN201922260061.2U
Authority: CN
Inventors: 叶德科
Original assignee: Suzhou Qiangbang Industrial Co ltd
Current assignee: Suzhou Qiangbang Industrial Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-09-01
Anticipated expiration: 2029-12-16

Abstract

The utility model belongs to the technical field of the fastener technique and specifically relates to a stopping auto-lock round nut. The utility model provides a following technical scheme: the utility model provides a stopping auto-lock round nut, includes the round nut body, the centre of round nut body is equipped with the thread groove, is equipped with the internal thread in the thread groove, edge equidistance along the thread groove on one side terminal surface of round nut body is equipped with a plurality of auto-lock pieces towards axial extension, be connected through the first kink that can buckle between self-lock piece and the round nut body, a plurality of recesses have been seted up for setting up on the opposite side terminal surface from the lock piece to the round nut body, be equipped with the locating piece in the recess, the one end and the recess fixed connection of locating piece, the recess is stretched out to the other end, the locating piece adopts rubber materials to make. The utility model discloses can make round nut have the function of auto-lock, prevent that round nut from retreating because of rotating.

Description

Non-return self-locking round nut

Technical Field

The utility model belongs to the technical field of the fastener technique and specifically relates to a stopping auto-lock round nut.

Background

The round nut is used for fastening and matching parts on the shaft. However, the round nut is easy to loosen when used alone, so that the round nut needs to be matched with the stop washer for the round nut, but the arrangement causes complicated installation steps and is inconvenient.

Disclosure of Invention

To the problem that exists among the prior art, the utility model provides a stopping auto-lock round nut makes round nut have the function of auto-lock, prevents that round nut from retreating because of rotating.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a stopping auto-lock round nut, includes the round nut body, the centre of round nut body is equipped with the thread groove, is equipped with the internal thread in the thread groove, edge equidistance along the thread groove on one side terminal surface of round nut body is equipped with a plurality of auto-lock pieces towards axial extension, be connected through the first kink that can buckle between self-lock piece and the round nut body, a plurality of recesses have been seted up for setting up on the opposite side terminal surface from the lock piece to the round nut body, be equipped with the locating piece in the recess, the one end and the recess fixed connection of locating piece, the recess is stretched out to the other end, the locating piece adopts rubber materials to make.

By adopting the technical scheme, the self-locking plate is arranged, and the self-locking plate is connected with the round nut body through the first bending part, so that the self-locking plate can be bent relative to the round nut body, the self-locking plate can be bent and inserted into the key groove on the shaft after the round nut body is screwed down, the round nut is prevented from rotating, the round nut has a self-locking function, and the round nut is prevented from retreating due to rotation; the locating piece in the recess can be when round nut body and axle cooperation, and in inconsistent and the recess of being impressed of the part that needs to fix, because of it adopts rubber materials to make, receive compression deformation can produce reaction force, be used in the position rather than contacting, not only can fix it and prevent its rotation, still can produce axial effort to round nut body, make the internal thread in the thread groove inseparabler with the cooperation of epaxial external screw thread.

Furthermore, the other end that links to each other one end is equipped with the second kink for with first kink to the auto-lock piece.

By adopting the technical scheme, after the self-locking piece is bent through the first bending part, the self-locking piece can be stretched into the redundant part in the axial key groove and bent along the second bending part, so that the bent part along the second bending part is contacted with the groove bottom of the key groove, and the self-locking piece is more stably matched with the axial key groove.

Furthermore, contact blocks are respectively arranged at two radial ends of the second bending part.

By adopting the technical scheme, the contact blocks are respectively arranged at the radial two ends of the second bending part and can be contacted with the two side walls of the key groove on the shaft, so that the matching clearance between the self-locking plate and the key groove is eliminated, and the matching between the self-locking plate and the key groove is more compact.

Furthermore, the two contact blocks are arranged on the second bending part in a reverse inclined mode.

By adopting the technical scheme, the two contact blocks are arranged in such a way that the two contact blocks extend out of the range of the second bending part in an inclined mode, so that the two contact blocks are conveniently contacted with the two side walls of the key groove on the shaft, and the fit clearance between the self-locking plate and the key groove is eliminated.

Furthermore, one end of the positioning block extending out of the groove is arranged to be an arc surface.

By adopting the technical scheme, in the process of screwing the round nut body, the positioning block can inevitably rub with the part on the shaft, the surface of the arc surface is smooth, and the friction resistance generated by the contact of the arc surface and the positioning block is small.

Drawings

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

Fig. 2 is a right side view of fig. 1.

Fig. 3 is an assembly diagram of the present invention.

Detailed Description

The following will further describe the embodiments of the present invention with reference to the drawings and examples.

The non-return self-locking round nut comprises a round nut body 1, wherein a thread groove 2 is formed in the middle of the round nut body 1, internal threads are formed in the thread groove 2, a plurality of self-locking pieces 3 extending in the axial direction are arranged on the end face of one side of the round nut body 1 along the edge of the thread groove 2 at equal intervals, the self-locking pieces 3 are connected with the round nut body 1 through bendable first bending portions 4, a plurality of grooves 5 are formed in the round nut body 1 relative to the end face of the other side of the self-locking piece 3, positioning blocks 6 are arranged in the grooves 5, one ends of the positioning blocks 6 are fixedly connected with the grooves 5, the other ends of the positioning blocks extend out of the grooves 5, and the positioning blocks 6 are made of rubber materials. The self-locking piece 3 is arranged, and the self-locking piece 3 is connected with the round nut body 1 through the first bending part 4, so that the self-locking piece 3 can be bent relative to the round nut body 1, the self-locking piece 3 can be bent and inserted into the key groove 10 on the shaft 9 after the round nut body 1 is screwed down, the round nut is prevented from rotating, the round nut has a self-locking function, and the round nut is prevented from retreating due to rotation; the locating piece 6 in the recess 5 can be when round nut body 1 and axle 9 cooperate, and the part that needs to fix is inconsistent and by the recess 5 of being impressed, because of it adopts rubber materials to make, receives compression deformation can produce reaction force, is used in the position rather than contacting, not only can fix it and prevent its rotation, still can produce axial effort to round nut body 1, makes the internal thread in the thread groove 2 inseparabler with the cooperation of the external screw thread on the axle 9.

It should be noted that the number of the self-locking pieces 3 may be one or more. In this embodiment, three self-locking pieces 3 are provided. In addition, the thickness of the self-locking plate 3 can be adjusted according to the size of the round nut, the larger the diameter of the round nut is, the larger the acting force generated by the round nut is, and therefore the self-locking plate 3 also needs to be thickened correspondingly to prevent the self-locking plate 3 from being pulled apart.

The other end that from locking plate 3 links to each other one end for with first kink 4 is equipped with second kink 7. After the self-locking piece 3 is bent through the first bending part 4, the self-locking piece 3 can be bent along the second bending part 7 by extending the redundant part in the key groove 10 on the shaft 9, so that the bent part along the second bending part 7 is contacted with the groove bottom of the key groove 10, and the self-locking piece 3 is more stably matched with the key groove 10 on the shaft 9.

And contact blocks 8 are respectively arranged at the radial two ends of the second bending part 7. The contact blocks 8 are respectively arranged at the radial two ends of the second bending part 7 and can be in contact with the two side walls of the key groove 10 on the shaft 9, so that the matching clearance between the self-locking plate 3 and the key groove 10 is eliminated, and the matching between the self-locking plate 3 and the key groove 10 is more tight.

The two contact blocks 8 are arranged on the second bending part 7 in a reverse inclined way. The two contact blocks 8 are arranged in a way that the two contact blocks extend out of the range of the second bending part 7 in an inclined mode, so that the two contact blocks are conveniently contacted with two side walls of the key groove 10 on the shaft 9, and therefore the fit clearance between the self-locking plate 3 and the key groove 10 is eliminated.

One end of the positioning block 6 extending out of the groove 5 is provided with a circular arc surface. In the process of screwing the round nut body 1, the positioning block 6 inevitably rubs with parts on the shaft 9, the surface of the arc surface is smooth, and the friction resistance generated by the contact of the arc surface and the positioning block is small.

As shown in fig. 3, during installation, the round nut body 1 can be first matched with the threads on the shaft 9, and the round nut body 1 is screwed down, so that the positioning block 6 is contacted with the part 11 on the shaft 9 and is extruded, meanwhile, the position of the locking plate 3 is corresponding to the position of the key groove 10 on the shaft 9, the locking plate 3 is bent along the first bending part 4 and is inserted into the key groove 10 on the shaft 9, the redundant part of the locking plate 3 extending into the key groove 10 on the shaft 9 is bent along the second bending part 7, the bent part along the second bending part 7 is contacted with the groove bottom of the key groove 10, and the contact blocks 8 arranged at the two radial ends of the second bending part 7 are respectively contacted with the two side walls of the key groove 10 on the shaft 9.

Claims

1. The utility model provides a stopping auto-lock round nut, includes the round nut body, the centre of round nut body is equipped with the thread groove, is equipped with the internal thread in the thread groove, its characterized in that: the round nut is characterized in that a plurality of self-locking pieces extending towards the axial direction are arranged on the end face of one side of the round nut body along the edge of the thread groove in an equidistance mode, the self-locking pieces are connected with the round nut body through bendable first bending portions, a plurality of grooves are formed in the round nut body relative to the end face of the other side of the self-locking piece, positioning blocks are arranged in the grooves, one ends of the positioning blocks are fixedly connected with the grooves, the other ends of the positioning blocks extend out of the grooves, and the positioning blocks are made of.

2. The backstop self-locking round nut as claimed in claim 1, wherein: the self-locking piece is provided with a second bending part relative to the other end of the end connected with the first bending part.

3. The backstop self-locking round nut as claimed in claim 2, wherein: and contact blocks are respectively arranged at the radial two ends of the second bending part.

4. The backstop self-locking round nut according to claim 2 or 3, characterized in that: the two contact blocks are oppositely and obliquely arranged on the second bending part.

5. The anti-backing self-locking round nut as claimed in claim 1, 2 or 3, wherein: one end of the positioning block extending out of the groove is provided with an arc surface.