CN212003908U - Anti-loose nut - Google Patents
Anti-loose nut Download PDFInfo
- Publication number
- CN212003908U CN212003908U CN201922376768.XU CN201922376768U CN212003908U CN 212003908 U CN212003908 U CN 212003908U CN 201922376768 U CN201922376768 U CN 201922376768U CN 212003908 U CN212003908 U CN 212003908U
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- China
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- fastening
- fastening bolt
- bolt
- locknut
- screw hole
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Abstract
The utility model relates to a technical field of fastener discloses a locknut, its nut body including being hexagonal structure setting, the middle part of nut body is equipped with the installation screw, be equipped with the fastening screw that communicates with the installation screw on the lateral wall of nut body, fastening screw female connection has fastening bolt. The utility model discloses difficult and the mounting bolt separation that links to each other rather than when mechanical equipment operation, locking effectual.
Description
Technical Field
The utility model belongs to the technical field of the technique of fastener and specifically relates to a locknut is related to.
Background
The nut is a part which is screwed together with the bolt or the screw rod to play a role in fastening, and is a fastener commonly used in mechanical equipment or daily life.
Among the prior art, chinese patent with publication number CN202789997U discloses a nut, which comprises a nut body and a retainer ring that are integrally arranged, wherein the nut body is arranged in a hexagonal structure, the diameter of the retainer ring is greater than the outer diameter of the nut body, the nut body comprises an inner wall and an outer surface, the inner wall of the nut body is provided with threads, and the outer surface is provided with a copper-plated layer.
The above prior art solutions have the following drawbacks: when the nut is installed on mechanical equipment, the nut is completely screwed up by the threads on the inner wall of the nut and the installation bolt matched with the nut to play a role in fastening, the anti-loosening effect is poor, the mechanical equipment can generate severe vibration during operation, the nut is easily separated from the installation bolt connected with the nut by the vibration, the normal operation of the equipment is influenced, and the improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a locknut, difficult and the mounting bolt separation that links to each other rather than when mechanical equipment moves, locking effectual.
The above object of the present invention can be achieved by the following technical solutions: the utility model provides a locknut, is including the nut body that is the setting of hexagonal structure, the middle part of nut body is equipped with the installation screw, be equipped with the fastening screw that communicates with the installation screw on the lateral wall of nut body, fastening screw female connection has fastening bolt.
Through adopting above-mentioned technical scheme, nut body and rather than the installation bolt threaded connection back of adaptation, the construction bolt is located the construction bolt, then with fastening bolt and fastening screw threaded connection, make fastening bolt's tip support tight construction bolt, construction bolt and nut body still receive fastening bolt's squeezing action except that receiving the screw thread restriction of construction screw inner wall this moment, thereby the nut body can not separate with the construction bolt when making mechanical equipment work produce the vibration, locking effectual, mechanical equipment's normal operating has been ensured. The fastening bolt is in threaded fit with the fastening screw hole, and the stability of the fastening bolt is high.
The utility model discloses further set up to: the number of the fastening screw holes is six and the fastening screw holes are respectively arranged on six side walls of the nut body.
Through adopting above-mentioned technical scheme, the quantity of fastening bolt and fastening screw is established to a plurality ofly, has increased the lifting surface area who connects at the mounting bolt in the mounting screw, and fastening effect is good. And the fastening screw holes are respectively formed in the six side walls of the nut body, so that the fastening bolt can be screwed by people no matter which side wall faces outwards after the nut body is installed in place.
The utility model discloses further set up to: and a rubber pad is fixed at one end of the fastening bolt close to the mounting screw hole.
Through adopting above-mentioned technical scheme, the rubber pad plays buffer protection's effect when fastening bolt and construction bolt butt for the difficult flower of scraping of screw thread of construction bolt lateral wall. In addition, the rubber pad also increases the frictional resistance of the fastening bolt and the mounting bolt, so that the fastening bolt and the mounting bolt are not easy to move relatively.
The utility model discloses further set up to: the one end that the installation screw was kept away from to the fastening screw is equipped with the guiding hole of outside extension, the internal diameter of guiding hole reduces gradually to the one side that is close to the fastening screw.
Through adopting above-mentioned technical scheme, the guiding hole has enlarged the fastening screw and has kept away from the opening of installation screw one side, plays the effect of direction when fastening bolt stretches into the fastening screw.
The utility model discloses further set up to: an annular elastic ring is fixed on the inner wall of the guide hole, an annular positioning groove is formed in the circumferential side wall of the fastening bolt, and one end of the elastic ring is embedded in the positioning groove.
Through adopting above-mentioned technical scheme, when twisting fastening bolt so that it and fastening screw thread fit, the elastic ring pressurized and produce deformation, after fastening bolt supported tight construction bolt, the elastic ring can reset under self elastic action and imbed the constant head tank in, the inner wall of constant head tank can restrict the relative fastening bolt of elastic ring and remove this moment to make fastening bolt receive difficult and fastening screw separation when vibrations, improved the stability of elastic ring.
The utility model discloses further set up to: the inner wall of the fastening screw hole is provided with an annular limiting groove, the limiting groove is positioned at one end, close to the guide hole, of the fastening screw hole, and an elastic limiting sleeve is embedded inside the limiting groove.
Through adopting above-mentioned technical scheme, fastening bolt not only receives the spacing of elastic ring when twisting the fastening screw, still can make the stop collar produce elastic deformation, and the stop collar after the compression deformation supports and presses on fastening bolt, has further improved fastening bolt's stability.
The utility model discloses further set up to: the stop collar is close to the solid fixed ring of integrated into one piece on fastening bolt's the lateral wall, gu fixed ring is the convex cambered surface with fastening bolt's contact surface.
Through adopting above-mentioned technical scheme, solid fixed ring has increased the frictional force of stop collar and fastening bolt for fastening bolt is difficult for taking place relative movement with the stop collar after the installation targets in place, and the convex arc face plays the effect of direction when fastening bolt twists or screws out, is favorable to fastening bolt's dismouting.
The utility model discloses further set up to: the side wall of the limiting sleeve, which is far away from the fastening bolt, is provided with an annular stop groove, the inner wall of the limiting groove, which is far away from the fastening screw hole, is fixedly provided with an annular stop block, and the stop block is positioned in the stop groove.
Through adopting above-mentioned technical scheme, when installing the stop collar, utilize equipment such as pressure cap machine to press the stop collar into the spacing groove, the in-process stop collar deformation of impressing makes the stop block stretch into the catch groove in, stop block and catch groove cooperation can restrict the stop collar and move in the spacing groove, drive the stop collar and shift out the spacing groove when avoiding fastening bolt to twist, improved the stability of stop collar.
The utility model discloses further set up to: the fastening bolt is a cross bolt, and the maximum length of the fastening bolt is not larger than the minimum distance between the outer wall of the nut body and the mounting screw hole.
Through adopting above-mentioned technical scheme, fastening bolt and the back of connecting the mounting bolt butt in the mounting screw, fastening bolt's tip can not stretch out the nut body, has reduced the holistic occupation space of nut, practices thrift space resource.
To sum up, the utility model discloses a following at least one useful technological effect:
1. after the nut body is connected with the mounting bolt matched with the nut body, the fastening bolt is in threaded connection with the fastening screw hole, so that the fastening bolt abuts against the mounting bolt, the mounting bolt is prevented from being separated from the nut body when being vibrated, the anti-loosening effect of the nut is good, and the normal operation of mechanical equipment is guaranteed;
2. the limiting sleeve can press the fastening bolt in the fastening screw hole in a threaded manner, so that the fastening bolt is not easy to move out of the fastening screw hole, and the stability of the fastening bolt is improved; the stop block and the stop groove are matched to play a role in limiting the stop sleeve to move out of the limit groove.
Drawings
FIG. 1 is a schematic structural view of the present embodiment;
fig. 2 is a partial sectional view schematically showing the present embodiment.
Reference numerals: 1. a nut body; 2. mounting a screw hole; 3. fastening screw holes; 4. fastening a bolt; 5. a rubber pad; 6. a guide hole; 7. an elastic ring; 8. positioning a groove; 9. a limiting groove; 10. a limiting sleeve; 11. a stopper groove; 12. a stopper block; 13. and (4) fixing the ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment discloses a locknut, as shown in fig. 1 and 2, including the nut body 1 that is the setting of hexagonal structure, the middle part of nut body 1 is equipped with installation screw 2, and installation screw 2 is used for the mounting bolt of threaded connection and nut body 1 adaptation. Six lateral walls of the nut body 1 are respectively provided with a fastening screw hole 3, each fastening screw hole 3 is internally connected with a fastening bolt 4, and a rubber pad 5 is fixed on the end face, close to the mounting screw hole 2, of each fastening bolt 4.
As shown in fig. 1 and 2, after the nut body 1 is connected with the mounting bolt adapted to the nut body, people can connect the fastening bolt 4 with the fastening screw hole 3 in a threaded manner, so that the end of the fastening bolt 4 abuts against the mounting bolt, the mounting bolt is limited from moving relative to the nut body 1, the nut body 1 and the mounting bolt are prevented from being separated when the mechanical equipment works to vibrate, the anti-loosening effect is good, and the normal operation of the mechanical equipment is guaranteed.
As shown in fig. 1 and 2, the fastening bolt 4 is a cross bolt, the maximum length of the fastening bolt 4 is slightly smaller than the minimum distance between the outer wall of the nut body 1 and the mounting screw hole 2, an outwardly extending guide hole 6 is formed in one end of the fastening screw hole 3, which is far away from the mounting screw hole 2, and the inner diameter of the guide hole 6 is gradually reduced toward one side close to the fastening screw hole 3. When the fastening bolt 4 is abutted against the mounting bolt connected in the mounting screw hole 2, the head of the fastening bolt 4 is positioned in the guide hole 6 and cannot be exposed, so that the overall occupied space of the nut is reduced. Furthermore, the guide hole 6 also serves as a guide when the fastening bolt 4 protrudes into the fastening screw hole 3.
As shown in fig. 1 and 2, an annular elastic ring 7 is fixed on the inner wall of the guide hole 6, the elastic ring 7 is made of rubber material, and the elastic ring 7 is positioned at one end of the guide hole 6 close to the fastening screw hole 3. The circumferential side wall of the fastening bolt 4 is provided with an annular positioning groove 8, and the positioning groove 8 is positioned at one end of the rod part of the fastening bolt 4 close to the head part. Fastening bolt 4 twists the in-process of fastening screw 3, and elastic ring 7 produces deformation by the extrusion of 4 pole portions of fastening bolt earlier, and when fastening bolt 4 compressed tightly the construction bolt, elastic ring 7 and constant head tank 8 align, and elastic ring 7 can reset under self elastic action this moment and imbed in constant head tank 8 to restriction fastening bolt 4 shifts out fastening screw 3, has improved fastening bolt 4's stability.
As shown in fig. 1 and 2, an annular limiting groove 9 is formed in the inner wall of the fastening screw hole 3, the limiting groove 9 is located at one end of the fastening screw hole 3 close to the guide hole 6, an elastic limiting sleeve 10 is embedded in the limiting groove 9, and the limiting sleeve 10 is made of a nylon material. The limiting sleeve 10 is pressed into the limiting groove 9 through equipment such as a cap pressing machine, and the limiting sleeve 10 partially extends into the fastening screw hole 3 and abuts against the fastening bolt 4 in a natural state, so that the effect of limiting the fastening bolt 4 to move out of the fastening screw hole 3 is achieved. An annular stop groove 11 is formed in the side wall, away from the fastening bolt 4, of the limiting sleeve 10, an annular stop block 12 is fixed on the inner wall, away from the fastening screw hole 3, of the limiting groove 9, and the stop block 12 is located in the stop groove 11. The stop block 12 and the stop groove 11 are matched to play a role in limiting the stop collar 10 to move out of the stop groove 9 under the action of the fastening bolt 4, and the stability of the stop collar 10 is improved.
As shown in fig. 1 and 2, a fixing ring 13 is integrally formed on a side wall of the stop collar 10 close to the fastening bolt 4, and the fixing ring 13 is annular and has a convex arc surface on an end surface far away from the stop collar 10. The fixed ring 13 increases the friction force between the limiting sleeve 10 and the fastening bolt 4, and the limiting effect is good.
The implementation principle of the embodiment is as follows: after the nut body 1 is connected with the mounting bolt matched with the nut body, the mounting bolt is positioned in the mounting screw hole 2, and then the fastening bolt 4 is in threaded connection with the fastening screw hole 3, so that the fastening bolt 4 abuts against the mounting bolt, the nut body 1 is difficult to separate from the mounting bolt when being vibrated, the anti-loosening effect is good, and the normal operation of mechanical equipment is guaranteed. At the moment, the elastic ring 7 is positioned in the positioning groove 8, and the limiting sleeve 10 is pressed on the fastening bolt 4, so that the stability of the fastening bolt 4 is improved.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides a locknut, is including nut body (1) that is the setting of hexagonal structure, the middle part of nut body (1) is equipped with installation screw (2), its characterized in that: the nut is characterized in that a fastening screw hole (3) communicated with the mounting screw hole (2) is formed in the side wall of the nut body (1), and a fastening bolt (4) is connected to the fastening screw hole (3) in an inner thread mode.
2. The locknut of claim 1, wherein: the number of the fastening screw holes (3) is six and the fastening screw holes are respectively arranged on six side walls of the nut body (1).
3. The locknut of claim 2, wherein: and a rubber pad (5) is fixed at one end of the fastening bolt (4) close to the mounting screw hole (2).
4. The locknut of claim 2, wherein: one end, far away from the mounting screw hole (2), of the fastening screw hole (3) is provided with a guide hole (6) extending outwards, and the inner diameter of the guide hole (6) is gradually reduced towards one side close to the fastening screw hole (3).
5. The locknut of claim 4, wherein: an annular elastic ring (7) is fixed on the inner wall of the guide hole (6), an annular positioning groove (8) is formed in the circumferential side wall of the fastening bolt (4), and one end of the elastic ring (7) is embedded in the positioning groove (8).
6. The locknut of claim 4, wherein: be equipped with annular spacing groove (9) on the inner wall of fastening screw (3), spacing groove (9) are located fastening screw (3) and are close to the one end and the inside of guiding hole (6) and inlay and be equipped with elastic stop collar (10), work as during fastening bolt (4) and fastening screw (3) threaded connection, stop collar (10) pressurized and support and press fastening bolt (4).
7. The locknut of claim 6, wherein: the stop collar (10) is close to the solid fixed ring (13) of integrated into one piece on the lateral wall of fastening bolt (4), gu fixed ring (13) is the convex cambered surface with the contact surface of fastening bolt (4).
8. The locknut of claim 6, wherein: the side wall of the limiting sleeve (10) far away from the fastening bolt (4) is provided with an annular stop groove (11), the inner wall of the limiting groove (9) far away from the fastening screw hole (3) is fixedly provided with an annular stop block (12), and the stop block (12) is positioned in the stop groove (11).
9. The locknut of claim 1, wherein: the fastening bolt (4) is a cross bolt, and the maximum length of the fastening bolt is not larger than the minimum distance between the outer wall of the nut body (1) and the mounting screw hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922376768.XU CN212003908U (en) | 2019-12-25 | 2019-12-25 | Anti-loose nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922376768.XU CN212003908U (en) | 2019-12-25 | 2019-12-25 | Anti-loose nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212003908U true CN212003908U (en) | 2020-11-24 |
Family
ID=73427221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922376768.XU Expired - Fee Related CN212003908U (en) | 2019-12-25 | 2019-12-25 | Anti-loose nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212003908U (en) |
-
2019
- 2019-12-25 CN CN201922376768.XU patent/CN212003908U/en not_active Expired - Fee Related
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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: 20201124 Termination date: 20211225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |