CN218780609U - Novel combined locknut with jacking structure - Google Patents
Novel combined locknut with jacking structure Download PDFInfo
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- CN218780609U CN218780609U CN202222607411.XU CN202222607411U CN218780609U CN 218780609 U CN218780609 U CN 218780609U CN 202222607411 U CN202222607411 U CN 202222607411U CN 218780609 U CN218780609 U CN 218780609U
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- nut
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- jacking
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- lower nut
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Abstract
The utility model relates to the technical field of anti-loose nuts, in particular to a novel combined anti-loose nut with a jacking structure, which comprises an upper nut and a lower nut, wherein the middle part of the lower nut is provided with a threaded hole, the top end of the lower nut is provided with a ring groove, the inner wall of the ring groove is provided with a plurality of jacking holes communicated with the threaded hole, a plurality of arc-shaped sheets are arranged in the ring groove, a jacking rod is connected in the jacking holes in a sliding way, one end of the jacking rod extends into the ring groove to be fixedly connected with the arc-shaped sheets, and the bottom end of the upper nut is fixedly connected with an extrusion sheet corresponding to the ring groove; when the screw is used, the lower nut is screwed into the bolt and is screwed, the upper nut is screwed, the annular extrusion piece is gradually screwed into the annular groove, and meanwhile, the arc-shaped piece is extruded inwards by the annular extrusion piece, so that the tightening rod at the inner side of the arc-shaped piece extends out of the tightening hole, and the end part of the tightening rod is pressed against the bolt; the utility model discloses can lock the nut after the installation, prevent that the phenomenon that the pine takes off from appearing in the use in the nut, improve the fastness of nut.
Description
Technical Field
The utility model relates to a locknut technical field, in particular to novel top combination locknut of tight structure.
Background
The locknut is a nut, is screwed together with a bolt or a screw to play a role in fastening, and is an original element which must be used by all production and manufacturing machines.
The current chinese patent that the bulletin number of granting is CN212028289U that authorizes, a take combination locknut of tight structure in cam top, including upper nut and lower nut, one side of upper nut one end excircle is provided with first eccentric circle, the opposite side of upper nut one end excircle is provided with second eccentric circle, screw hole has been seted up at the middle part of upper nut, screw hole has been seted up down at the middle part of lower nut, one side of lower nut one end is provided with first boss, the opposite side of lower nut one end is provided with the second boss, the other end of lower nut is provided with solid fixed ring, the middle part threaded connection of upper nut and lower nut has fastening bolt, movable mounting has the elastic washer between lower nut and the fastening bolt, the lower nut is close to solid fixed ring's one end fixedly connected with lag.
But it still has not enoughly in practical application, does not have the structure of locking the nut after the installation, and the phenomenon that the nut takes off appears in the use easily, has reduced the fastness of nut.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel top combination locknut of tight structure to solve the problem that proposes among the above-mentioned background art.
In order to realize the purpose, the technical scheme of the utility model is as follows:
the utility model provides a novel tight structure in top combination locknut, includes nut and lower nut, threaded hole is seted up at the lower nut middle part, the top of lower nut is provided with the ring channel, be provided with a plurality of intercommunications on the inner wall of ring channel the tight hole in top of screw hole, be provided with multi-disc arc piece in the ring channel, sliding connection has the puller rod in the tight hole in top, the one end of puller rod stretches into fixed connection in the ring channel the arc piece, the bottom fixedly connected with of nut with the corresponding annular extrusion piece of ring channel.
Furthermore, the inner side of the bottom of the annular extrusion sheet is provided with a chamfer.
Furthermore, a spring is connected between the arc-shaped piece and one side wall of the annular groove.
Furthermore, the bottom end of the arc-shaped piece is attached to the bottom of the annular groove.
Furthermore, a first thread is arranged on the outer side wall of the annular extrusion piece, and a second thread matched with the first thread is arranged on the side wall of the annular groove.
The beneficial effects of the utility model are that:
when the upper nut is screwed on the bolt, the end part of the jacking rod inside the arc piece extends out of the jacking hole, and when the upper nut is screwed on the bolt, the end part of the jacking rod abuts against the bolt; the utility model discloses can lock the nut after the installation, prevent that the phenomenon that the pine takes off from appearing in the use in the nut, improve the fastness of nut.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of an upper nut of the present invention;
fig. 3 is a cross-sectional view of the lower nut of the present invention.
Reference numerals: an upper nut 1; a lower nut 2; a jacking hole 21; an annular groove 22; a puller rod 3; an arc-shaped sheet 4; an annular extrusion sheet 5; a chamfer 51; a spring 6; a first thread 7; a second thread 8.
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.
As shown in fig. 1, 2 and 3, a novel combined locknut with a jacking structure comprises an upper nut 1 and a lower nut 2, a threaded hole is formed in the middle of the lower nut 2, an annular groove 22 is formed in the top end of the lower nut 2, a plurality of communicating holes 21 for jacking the threaded hole are formed in the inner wall of the annular groove 22, a plurality of arc-shaped pieces 4 are arranged in the annular groove 22, a jacking rod 3 is slidably connected in the jacking hole 21, one end of the jacking rod 3 extends into the annular groove 22 and is fixedly connected with the arc-shaped pieces 4, and an annular extrusion piece 5 corresponding to the annular groove 22 is fixedly connected to the bottom end of the upper nut 1.
When the screw is used, the lower nut 2 is screwed into the bolt and then the upper nut 1 is screwed in, the annular extrusion piece 5 is gradually screwed into the annular groove 22 in the screwing process of the upper nut 1, meanwhile, the arc-shaped piece 4 is inwards extruded by the annular extrusion piece 5, so that the tightening rod 3 on the inner side of the arc-shaped piece 4 extends out of the tightening hole 21, and when the upper nut 1 is screwed on the bolt, the end part of the tightening rod 3 is tightly pressed on the bolt; the utility model discloses can lock the nut after the installation, prevent that the phenomenon that the pine takes off from appearing in the use in the nut, improve the fastness of nut.
As shown in fig. 2, a chamfer 51 is arranged on the inner side of the bottom of the annular extrusion piece 5; in this embodiment, the chamfer 51 is provided to facilitate the entry of the arc-shaped piece 4 into the inner side of the annular pressing piece 5.
As shown in fig. 1 and 3, a spring 6 is connected between the arc-shaped piece 4 and one side wall of the annular groove 22; in this embodiment, when annular extrusion piece 5 inserts in the ring channel 22, spring 6 compresses, and under spring 6's effort, arc piece 4 applys an effort to annular extrusion piece 5 along the axial of tightening rod 3 to improve the frictional force between annular extrusion piece 5 and the arc piece 4, improve the fastness that upper nut 1 and lower nut 2 are connected, improve the locking effect of nut.
As shown in fig. 1 and 3, the bottom end of the arc-shaped piece 4 is attached to the bottom of the annular groove 22; in this embodiment, the bottom of arc piece 4 is laminated with the bottom of ring channel 22, restricts arc piece 4 at ring channel 22 internal rotation, avoids during the installation of upper nut 1, and the part that arc piece 4 rotated out the ring channel hinders upper nut 1 and is close to lower nut.
As shown in fig. 1, 2 and 3, a first thread 7 is arranged on the outer side wall of the annular pressing sheet 5, and a second thread 8 matched with the first thread 7 is arranged on the side wall of the annular groove 22; in this embodiment, when installing on the bolt through last nut 1 spiro union, annular extrusion piece 5 inserts in annular groove 22 and with annular groove 22 looks spiro union, through threaded connection structure, improves the fastness between last nut 1 and the lower nut 2, improves the locking effect of nut.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (5)
1. The utility model provides a novel tight structure in top's combination locknut which characterized in that: including last nut (1) and lower nut (2), threaded hole is seted up at lower nut (2) middle part, the top of lower nut (2) is provided with ring channel (22), be provided with a plurality of intercommunications on the inner wall of ring channel (22) tight hole in top (21) of screw hole, be provided with multi-disc arc piece (4) in ring channel (22), sliding connection has tight pole in top (21) tightly (3), the one end of tight pole in top (3) stretches into fixed connection in ring channel (22) arc piece (4), the bottom fixedly connected with of last nut (1) with ring channel (22) corresponding annular extrusion piece (5).
2. The novel combined locknut with the jacking structure as claimed in claim 1, wherein: and a chamfer (51) is arranged on the inner side of the bottom of the annular extrusion sheet (5).
3. The novel combined locknut with the jacking structure as claimed in claim 1, wherein: and a spring (6) is connected between the arc-shaped sheet (4) and one side wall of the annular groove (22).
4. The novel combined locknut with the jacking structure as claimed in claim 1, wherein: the bottom end of the arc-shaped sheet (4) is attached to the bottom of the annular groove (22).
5. The novel combined locknut with the jacking structure as claimed in claim 1, wherein: the outer side wall of the annular extrusion piece (5) is provided with a first thread (7), and the side wall of the annular groove (22) is provided with a second thread (8) matched with the first thread (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222607411.XU CN218780609U (en) | 2022-09-30 | 2022-09-30 | Novel combined locknut with jacking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222607411.XU CN218780609U (en) | 2022-09-30 | 2022-09-30 | Novel combined locknut with jacking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218780609U true CN218780609U (en) | 2023-03-31 |
Family
ID=85713716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222607411.XU Active CN218780609U (en) | 2022-09-30 | 2022-09-30 | Novel combined locknut with jacking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218780609U (en) |
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2022
- 2022-09-30 CN CN202222607411.XU patent/CN218780609U/en active Active
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