CN209875699U - Novel anti-loosening nut - Google Patents
Novel anti-loosening nut Download PDFInfo
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- CN209875699U CN209875699U CN201920671332.0U CN201920671332U CN209875699U CN 209875699 U CN209875699 U CN 209875699U CN 201920671332 U CN201920671332 U CN 201920671332U CN 209875699 U CN209875699 U CN 209875699U
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- section
- loosening
- nut
- frustum cone
- frustum
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Abstract
The utility model relates to a nut discloses a novel locking nut that moves. The utility model comprises a nut inner core and a nut outer sleeve, wherein the nut inner core is a screwing section and a locking connecting section from top to bottom, the nut outer sleeve is provided with a locking connecting groove, a first threaded hole and locking teeth from top to bottom, and the locking connecting section is arranged in the locking connecting groove; the anti-loosening connecting section comprises a first frustum cone section, an anti-loosening external thread section and a second frustum cone section, the anti-loosening connecting groove comprises a first frustum cone hole section, an anti-loosening internal thread section and a second frustum cone hole section, the first frustum cone section is arranged in the first frustum cone hole section, the anti-loosening external thread section is in threaded connection with the anti-loosening internal thread section, the second frustum cone section is arranged in the second frustum cone hole section, and the lower end face of the second frustum cone section and the inner bottom face of the anti-loosening connecting groove are arranged at intervals; the thread pitch of the anti-loosening external thread section is larger than that of the second threaded hole. The utility model discloses but reuse can play multiple locking effect simultaneously, reaches better locking effect.
Description
Technical Field
The utility model relates to a nut, concretely relates to novel locking nut that moves.
Background
A nut is a nut, a component which is screwed together with a bolt or a screw to perform a fastening function, and all elements which are necessary for manufacturing machines. Locknut is one of them in the nut, and it sets up through certain structure, can prevent that this locknut from relaxing from the bolt and dropping. With the continuous improvement of quality of life, safety consciousness also becomes the central importance, wherein the nut for connection is a connection device which is visible everywhere, and the demand that needs now is urgent to design a nut which can be repeatedly used and has good anti-loosening effect.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a novel locking nut that moves.
The utility model discloses the technical scheme who adopts does:
a novel anti-loosening nut comprises a nut inner core and a nut outer sleeve, wherein the nut inner core is a connected tightening section and an anti-loosening connecting section in sequence from top to bottom; the anti-loosening connecting section is arranged in the anti-loosening connecting groove in a matching way; the anti-loosening connecting section comprises a first frustum cone section, an anti-loosening external thread section and a second frustum cone section which are sequentially connected from top to bottom, the anti-loosening connecting groove comprises a first frustum cone hole section, an anti-loosening internal thread section and a second frustum cone hole section which are sequentially connected from top to bottom, the first frustum cone section is arranged in the first frustum cone hole section in a matched mode, the anti-loosening external thread section is in threaded connection with the anti-loosening internal thread section, the second frustum cone section is arranged in the second frustum cone hole section in a matched mode, and the lower end face of the second frustum cone section and the inner bottom face of the anti-loosening connecting groove are arranged at intervals; the thread pitch of the external thread of the anti-loosening external thread section is larger than that of the internal thread of the second threaded hole.
It is further preferred that the length of the second frustum section is smaller than the length of the second frustum section.
It is further preferred that the upper end face of the nut outer sleeve is spaced from the lower end face of the tightening segment.
It is further preferred that the length of the first frustum section is smaller than the length of the first frustum section.
It is further preferred that the tightening segment and the nut shell are both hexagonal in configuration.
Still further preferably, the locking tooth that moves includes the friction tooth of ring distribution outside first screw hole, and every friction tooth all includes the not hard up stress surface when the nut overcoat loosens and the screw up stress surface when the nut overcoat screws up, and the contained angle between every not hard up stress surface and the horizontal plane is the right angle, and the contained angle between every screw up stress surface and the horizontal plane is the acute angle.
It is further preferable that the screwing direction of the internal thread of the loose-proof connecting groove is the same as the screwing direction of the internal thread of the second threaded hole.
The utility model has the advantages that:
the utility model discloses simple structure, low cost does not receive service condition to influence, and the installation is simple and convenient, and low in production cost as long as take off the bolt and just repeatedly usable, in the nut overcoat was twisted in the locking linkage segment cooperation of nut inner core when using, then the screw in bolt and realize between the work piece that fixed connection can. The first conical frustum section and the second conical frustum section can enable stress between the nut inner core and the nut outer sleeve to be uniform, and overall stability is better. The specific anti-loosening principle is as follows:
(1) when the nut is in a static tightening state, when the nut outer sleeve rotates in an loosening and tightening direction (anticlockwise) in advance under the action of external force, the nut outer sleeve is subjected to the upward reaction force of a workpiece and is transmitted to the nut inner core, and the direction of the force is changed through the conical table, so that the nut inner core obtains an inward clamping force, the contact between the nut inner core and the nut outer sleeve is tighter and tighter, and a good loosening prevention effect is achieved;
(2) when the nut outer sleeve rotates anticlockwise under the action of a workpiece, the inner core of the nut is not moved, and the anti-loosening internal thread section on the nut outer sleeve and the anti-loosening external thread section of the inner core of the nut are screwed more and more tightly at the moment, so that a better anti-loosening effect is further achieved;
(3) because the pitch of the external screw thread of locking external screw thread section is greater than the pitch of the internal thread of second screw hole, when the nut overcoat receives resonance counter-clockwise turning not hard up, because the pitch of the external screw thread of locking external screw thread section is greater than the pitch of the internal thread of second screw hole, and the screw rod can not receive extra power, and the nut overcoat can receive the bigger downward pressure that the nut inner core given this moment and press to the work piece, plays locking effect.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a cross-sectional view of the nut case of the present invention.
In the figure: 1-inner core of nut; 11-a second threaded hole; 12-a first frustum section; 13-anti-loosening external thread section; 14-a second frustum section; 15-screwing section; 2-nut sleeve; 21-a first threaded hole; 22-anti-loose teeth; 23-a first frustum cone bore section; 24-a locking internal thread section; 25-second frustoconically shaped bore section.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the accompanying drawings is only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any inventive work.
The technical solution provided by the present invention will be described in detail by way of embodiments with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
In some instances, some embodiments are not described or not in detail, as they are conventional or customary in the art.
Furthermore, the technical features described herein, or the steps of all methods or processes disclosed, may be combined in any suitable manner in one or more embodiments, in addition to the mutually exclusive features and/or steps. It will be readily appreciated by those of skill in the art that the order of the steps or operations of the methods associated with the embodiments provided herein may be varied. Any order in the drawings and examples is for illustrative purposes only and does not imply that a certain order is required unless explicitly stated to be required.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The terms "connected" and "coupled" when used in this application, encompass both direct and indirect connections (and couplings) where appropriate and where not necessary contradictory.
The first embodiment is as follows:
as shown in fig. 1 and fig. 2, the novel anti-loosening nut of the present embodiment includes a nut inner core 1 and a nut outer sleeve 2, the nut inner core 1 is sequentially provided with a tightening section 15 and an anti-loosening connecting section from top to bottom, the nut outer sleeve 2 is sequentially provided with an anti-loosening connecting groove, a first threaded hole 21 and an anti-loosening tooth 22 from top to bottom, the anti-loosening connecting section is fittingly installed in the anti-loosening connecting groove, and the middle portion of the nut inner core 1 is provided with a second threaded hole 11 matched with the first threaded hole 21; the anti-loosening connecting section is arranged in the anti-loosening connecting groove in a matching way; the anti-loosening connecting section comprises a first conical frustum section 12, an anti-loosening external thread section 13 and a second conical frustum section 14 which are sequentially connected from top to bottom, the anti-loosening connecting groove comprises a first conical frustum hole section 23, an anti-loosening internal thread section 24 and a second conical frustum hole section 25 which are sequentially connected from top to bottom, the first conical frustum section 12 is arranged in the first conical frustum hole section 23 in a matched mode, the anti-loosening external thread section 13 is in threaded connection with the anti-loosening internal thread section 24, the second conical frustum section 14 is arranged in the second conical frustum hole section 25 in a matched mode, and the lower end face of the second conical frustum section 14 and the inner bottom face of the anti-loosening connecting groove are arranged at intervals; the thread pitch of the external thread of the anti-loosening external thread section 13 is larger than the thread pitch of the internal thread of the second threaded hole 11.
The utility model discloses simple structure, low cost does not receive service condition to influence, and the installation is simple and convenient, and low in production cost as long as take off the bolt and just repeatedly usable, in nut overcoat 2 is twisted in the locking linkage segment cooperation of nut inner core 1 when using, then the screw in bolt, and realize between the work piece that fixed connection can. The first conical frustum section 12 and the second conical frustum section 14 can enable stress between the nut inner core 1 and the nut outer sleeve 2 to be uniform, and stability of the whole nut inner core and the nut outer sleeve is better. The specific anti-loosening principle is as follows:
(1) when the nut is in a static tightening state, when the nut outer sleeve 2 rotates towards the loosening direction (anticlockwise) in advance under the action of external force, the nut outer sleeve 2 bears the upward reaction force of a workpiece and transmits the reaction force to the nut inner core 1, and the direction of the force is changed through the conical table to enable the nut inner core 1 to obtain an inward clamping force, so that the nut inner core 1 and the nut outer sleeve 2 are in closer and closer contact, and a good anti-loosening effect is achieved;
(2) when the nut outer sleeve 2 rotates anticlockwise under the action of a workpiece, because the nut inner core 1 is not moved, the anti-loosening internal thread section 24 on the nut outer sleeve 2 and the anti-loosening external thread section 13 of the nut inner core 1 are screwed more and more tightly, and a better anti-loosening effect is further achieved;
(3) because the pitch of the external thread of locking external thread section 13 is greater than the pitch of the internal thread of second screw hole 11, when nut overcoat 2 receives resonance counter-clockwise turning not hard up, because the pitch of the external thread of locking external thread section 13 is greater than the pitch of the internal thread of second screw hole 11, and the screw rod can not receive extra power, and nut overcoat 2 can receive the bigger downward pressure that nut inner core 1 gave and press to the work piece this moment, plays the locking effect.
Example two:
the present embodiment is a further improvement on the basis of the first embodiment, and specific differences between the present embodiment and the first embodiment are as follows:
it should be further noted in this embodiment that the length of the second frustum section 14 is smaller than the length of the second frustum section 14. Therefore, a gap is formed between the lower end face of the second frustum section 14 and the inner bottom face of the anti-loosening connecting groove, when the nut outer sleeve 2 rotates in the loosening direction due to external force, the nut inner core 1 can be driven to move upwards under the action of the bolt and the anti-loosening teeth 22, and the loosening rotating force received by the nut outer sleeve 2 is converted into the lifting force of the nut inner core 1, so that the nut inner core 1 and the nut outer sleeve 2 are matched with each other to achieve the anti-loosening effect.
Example three:
the present embodiment is a further improvement on the basis of the first embodiment or the second embodiment, and the specific differences between the present embodiment and the first embodiment or the second embodiment are:
in this embodiment, it should be further noted that the upper end surface of the nut housing 2 is spaced apart from the lower end surface of the tightening segment 15. Therefore, the nut outer sleeve 2 is not in direct contact with the screwing section 15, stress cannot be generated, and when the nut outer sleeve 2 rotates in the loosening and tightening direction in advance, the stress surfaces of the first frustum section 12 and the second frustum section 14 act on the nut outer sleeve 2 simultaneously, so that acting force is more uniform.
Example four:
the present embodiment is a further improvement on the basis of the third embodiment, and specific differences between the present embodiment and the third embodiment are as follows:
it should be further noted that in this embodiment, the length of the first frustum section 12 is smaller than the length of the first frustum section 12. This ensures that a gap is provided between the upper end surface of the nut outer 2 and the lower end surface of the tightening segment 15.
Example five:
the present embodiment is a further improvement made on the basis of any one of the first to fourth embodiments, and the specific differences between the present embodiment and any one of the first to fourth embodiments are as follows:
in this embodiment, it should be further noted that the tightening segment 15 and the nut shell 2 are both hexagonal in shape. The hexagonal structure is a common structure which is convenient for the operation of a wrench, the embodiment only provides an optimal choice, and the shapes of the tightening section 15 and the nut outer sleeve 2 can be both a quadrilateral structure or a pentagonal structure, and the like, and are not limited specifically.
Example six:
the present embodiment is a further improvement made on the basis of any one of the first to fifth embodiments, and the specific differences between the present embodiment and any one of the first to fifth embodiments are as follows:
it should further be explained in this embodiment that locking tooth 22 includes the friction tooth of ring-type distribution outside first screw hole 21, every friction tooth all includes the not hard up stress surface when nut overcoat 2 loosens and the tight stress surface of screwing up when nut overcoat 2 screws up, every not hard up contained angle between stress surface and the horizontal plane is the right angle, give the biggest resistance when nut overcoat 2 has not hard up sign, make the frictional force maximize between nut overcoat 2 and the work piece when not hard up, every is screwed up contained angle between stress surface and the horizontal plane and is the acute angle, reduce the frictional force between gasket and the work piece when the bolt is screwed up. The volume ratio of friction tooth is less, mainly increases the frictional force between packing ring and the work piece that it contacted to this improves holistic locking effect, screws up the stress surface simultaneously and rubs the stress surface of tooth for nut overcoat 2 when screwing up, and not hard up stress surface is the stress surface of the friction tooth when loosening nut overcoat 2.
Example seven:
the present embodiment is a further improvement made on the basis of any one of the first to sixth embodiments, and the specific differences between the present embodiment and any one of the first to sixth embodiments are:
it should be further noted that, in the present embodiment, the screwing direction of the internal thread of the anti-loose connection groove is the same as the screwing direction of the internal thread of the second threaded hole 11. Thus, when the bolt is screwed into the nut inner core 1 and the nut outer sleeve 2, the force given to the nut inner core 1 only enables the nut inner core 1 and the nut outer sleeve 2 to be screwed more and more tightly without loosening.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (7)
1. The utility model provides a novel locking nut that moves which characterized in that: the anti-loosening nut comprises a nut inner core and a nut outer sleeve, wherein the nut inner core is a tightening section and an anti-loosening connecting section which are connected in sequence from top to bottom; the anti-loosening connecting section comprises a first frustum cone section, an anti-loosening external thread section and a second frustum cone section which are sequentially connected from top to bottom, the anti-loosening connecting groove comprises a first frustum cone hole section, an anti-loosening internal thread section and a second frustum cone hole section which are sequentially connected from top to bottom, the first frustum cone section is arranged in the first frustum cone hole section in a matched mode, the anti-loosening external thread section is in threaded connection with the anti-loosening internal thread section, the second frustum cone section is arranged in the second frustum cone hole section in a matched mode, and the lower end face of the second frustum cone section and the inner bottom face of the anti-loosening connecting groove are arranged at intervals; the thread pitch of the external thread of the anti-loosening external thread section is larger than that of the internal thread of the second threaded hole.
2. The novel anti-loosening nut as claimed in claim 1, wherein: the length of the second frustum section is less than the length of the second frustum section.
3. A new type of anti-loosening nut as claimed in claim 1 or 2, wherein: the upper end face of the nut outer sleeve and the lower end face of the screwing section are arranged at intervals.
4. A novel anti-loosening nut as claimed in claim 3, wherein: the length of the first frustum section is less than the length of the first frustum section.
5. The novel anti-loosening nut as claimed in claim 1, wherein: the tightening section and the nut outer sleeve are both of hexagonal structures.
6. The novel anti-loosening nut as claimed in claim 1, wherein: the locking tooth that moves includes that the annular distributes in the outer friction tooth of first screw hole, and every friction tooth all includes the not hard up stress surface when the nut overcoat loosens and the tight stress surface of screwing up when the nut overcoat is screwed up, and the contained angle between every not hard up stress surface and the horizontal plane is the right angle, and the contained angle between every tight stress surface of screwing up and the horizontal plane is the acute angle.
7. The novel anti-loosening nut as claimed in claim 1, wherein: the screwing direction of the internal thread of the anti-loosening connecting groove is the same as that of the internal thread of the second threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920671332.0U CN209875699U (en) | 2019-05-10 | 2019-05-10 | Novel anti-loosening nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920671332.0U CN209875699U (en) | 2019-05-10 | 2019-05-10 | Novel anti-loosening nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875699U true CN209875699U (en) | 2019-12-31 |
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ID=68964779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920671332.0U Expired - Fee Related CN209875699U (en) | 2019-05-10 | 2019-05-10 | Novel anti-loosening nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875699U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706589A (en) * | 2020-05-15 | 2020-09-25 | 江苏永昊高强度螺栓有限公司 | Anti-seismic bolt |
| CN112983959A (en) * | 2021-03-25 | 2021-06-18 | 宣化钢铁集团有限责任公司 | Nut locked in screwing process |
-
2019
- 2019-05-10 CN CN201920671332.0U patent/CN209875699U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706589A (en) * | 2020-05-15 | 2020-09-25 | 江苏永昊高强度螺栓有限公司 | Anti-seismic bolt |
| CN111706589B (en) * | 2020-05-15 | 2021-11-12 | 江苏永昊高强度螺栓有限公司 | Anti-seismic bolt |
| CN112983959A (en) * | 2021-03-25 | 2021-06-18 | 宣化钢铁集团有限责任公司 | Nut locked in screwing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |