CN211398209U - Nut structure capable of not falling off after releasing fastening state - Google Patents
Nut structure capable of not falling off after releasing fastening state Download PDFInfo
- Publication number
- CN211398209U CN211398209U CN201921880102.1U CN201921880102U CN211398209U CN 211398209 U CN211398209 U CN 211398209U CN 201921880102 U CN201921880102 U CN 201921880102U CN 211398209 U CN211398209 U CN 211398209U
- Authority
- CN
- China
- Prior art keywords
- hole
- nut
- spring
- bolt
- retainer ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a nut structure which can not fall off after the fastening state is released, which belongs to a nut for engineering and mainly relates to a nut structure which can not fall off after the fastening state is released, comprising a nut body, a first through hole, a second through hole, a third through hole, a fourth through hole, an inner nut, a retainer ring, a spring and a clamping groove; the nut has the advantages that the nut is simple in structure, low in manufacturing cost, small in size and convenient to operate, does not need to be riveted with equipment, does not fall off after fastening is relieved, the structure of the equipment cannot be damaged, and the use cost is reduced, so that possible potential safety hazards are avoided.
Description
Technical Field
The utility model belongs to a nut for engineering mainly involves a nut structure that does not drop after removing fastening state.
Background
Nuts and bolts are always the most common parts in various projects and equipment, and are also the most widely used parts. In some equipment installations, it is often necessary to tighten and loosen parts in order to adjust and position the equipment.
Generally, in the adjustment and positioning activities, a nut is screwed down during fastening, equipment is pressed and fixed by friction force between the nut and a bolt, a nut is loosened during fastening releasing, contact between the nut and the bolt is reduced, however, the nut is frequently loosened and falls off during use, the nut is separated, so that operation pause is caused, potential safety hazards can be brought to equipment and engineering sites by the separated nut, labor cost and material cost are increased, and accidents can be even caused. The existing release-free screw needs to be riveted with equipment, so that the structure of the equipment can be damaged, and the use is inconvenient.
Therefore, a technical solution to the above problems is urgently needed in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: aiming at the existing needs of nuts, the nut which does not fall off in the fastening releasing state is provided, the fastening and the loosening can be conveniently carried out, and the influence possibly caused by the falling off of the nut is not worried.
A nut structure that does not come off after releasing a fastened state, characterized in that: comprises a nut body, an inner nut, a retainer ring, a spring and a clamping groove;
the nut body is provided with an axially through hole along the screwing direction of the bolt, the diameter of the through hole is gradually reduced from the screwing direction of the bolt, and a first through hole, a second through hole, a third through hole and a fourth through hole are formed respectively;
wherein, a groove is arranged on the first through hole along the inner wall of the first through hole;
the second through hole is provided with a clamping groove in a regular hexagon shape, and the shape of the clamping groove is the same as that of the inner nut;
the diameter of the fourth through hole is consistent with that of the bolt, and the inner side wall of the fourth through hole is provided with threads matched with the bolt;
a check ring, an inner nut and a spring are coaxially and sequentially arranged in the through hole of the nut body along the screwing direction of the bolt;
the inner nut is a regular hexagon nut, and the inner diameter and the specification of the thread of the threaded hole of the inner nut are consistent with the diameter and the specification of the thread of the fourth through hole;
the retainer ring is clamped on the groove of the first through hole;
one end of the spring is connected with the nut body, the other end of the spring is connected with the inner nut, and the inner nut is in contact with the check ring when the spring is in a free state.
The retainer ring is a retainer ring or a retainer pin for a hole.
The diameter of the third through hole is smaller than the diameter of the circumcircle of the second through hole.
The spring is a compression spring or a wave-shaped elastic washer.
The utility model has the advantages as follows: the nut has the advantages that the nut is simple in structure, low in manufacturing cost, small in size and convenient to operate, does not need to be riveted with equipment, does not fall off after fastening is relieved, the structure of the equipment cannot be damaged, and the use cost is reduced, so that possible potential safety hazards are avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a cross-sectional view along AA in FIG. 1.
In the figure: 1-nut body, 101-first through hole, 102-second through hole, 103-third through hole, 104-fourth through hole, 2-internal nut, 3-retainer ring, 4-spring and 5-clamping groove.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and the detailed description thereof:
a nut structure that does not come off after releasing a fastened state, characterized in that: comprises a nut body 1, an inner nut 2, a retainer ring 3, a spring 4 and a clamping groove 5;
the nut body 1 is provided with an axially through hole along the screwing direction of the bolt, the diameter of the through hole is gradually reduced from the screwing direction of the bolt, and a first through hole 101, a second through hole 102, a third through hole 103 and a fourth through hole 104 are respectively formed;
wherein, a groove is arranged on the first through hole 101 along the inner wall of the first through hole 101;
the second through hole 102 is provided with a clamping groove 5 in a regular hexagon shape, and the shape of the clamping groove 5 is the same as that of the inner nut 2;
the diameter of the fourth through hole 104 is consistent with that of the bolt, and the inner side wall of the fourth through hole is provided with threads matched with the bolt;
a retainer ring 3, an inner nut 2 and a spring 4 are coaxially and sequentially arranged in the through hole of the nut body 1 along the screwing direction of the bolt;
the inner nut 2 is a regular hexagon nut, and the inner diameter and the specification of the thread of the threaded hole of the inner nut 2 are consistent with the diameter and the specification of the thread of the fourth through hole 104;
the retainer ring 3 is clamped on the groove of the first through hole 101;
one end of the spring 4 is connected with the nut body 1, the other end of the spring is connected with the inner nut 2, and the inner nut 2 is in contact with the retainer ring 3 when the spring 4 is in a free state.
The retainer ring 3 is a retainer ring or a stop pin for a hole.
The diameter of the third through hole 103 is smaller than the diameter of the circumcircle of the second through hole 102.
The spring 4 is a compression spring or a wave-shaped elastic gasket.
The nut body 1 is coaxially provided with a first through hole 101, a second through hole 102, a third through hole 103 and a fourth through hole 104 along the screwing direction of the bolt; the first through hole 101, the second through hole 102, the third through hole 103 and the fourth through hole 104 are sequentially connected end to end, and the diameters of the first through hole, the second through hole, the third through hole and the fourth through hole are sequentially reduced; a retainer ring 3, an inner nut 2 and a spring 4 are coaxially and sequentially arranged in the nut body 1 along the screwing direction of the bolt; a groove is formed in the edge of the first through hole, and the check ring 3 is inserted into the groove; the inner nut 2 is in contact with the retainer ring 3. The retainer ring 3 can be a hole retainer ring, a retainer pin and the like and is used for limiting the inner nut 2 from falling out of the nut body 1.
The second through hole is provided with a clamping groove 5, and the clamping groove 5 is of a hexagonal structure and is consistent with the structure of the inner nut 2; when the inner nut 2 is pressed into the clamping groove of the nut body 1, the nut body 1 can drive the inner nut 2 to rotate together. The diameter of the fourth through hole 104 is the same as that of the bolt, and an internal thread is arranged inside the fourth through hole; one end of the spring 4 is fixed with the nut body 1, the other end of the spring 4 is fixed with the inner nut 2, and the spring 4 can be a pressure spring or a wave-shaped elastic washer and the like and plays an elastic role.
The utility model discloses the theory of operation is: when the inner nut 2 is pressed into the clamping groove 5 of the nut body 1, the nut body 1 can drive the inner nut 2 to rotate together, and when the spring 4 ejects the inner nut 2 out of the clamping groove of the nut body 1, the inner nut 2 does not rotate along with the nut body 1.
The application method comprises the following steps:
1. pressing and fixing: aligning the threads on the inner nut 2 to a bolt to be fastened, pressing and rotating the nut body 1 to press the inner nut 2 into the clamping groove 5 of the nut body 1 to rotate along with the nut body 1, and screwing the threads of the inner nut 2 and the nut body 1 on the bolt to be screwed and pressed firmly.
2. And (3) relaxation: the nut body 1 is rotated, and the inner nut 2 rotates along with the nut body 1 in the clamping groove to release the pressing; when the screw thread of nut body 1 comes loose from the bolt, spring 4 pops out interior nut 2 from nut body 1's draw-in groove, and interior nut 2 no longer rotates along with nut body 1, and interior nut 2 is stayed on the bolt, guarantees to loosen the back the utility model discloses wholly not coming off from the bolt.
Claims (4)
1. A nut structure that does not come off after releasing a fastened state, characterized in that: comprises a nut body (1), an inner nut (2), a retainer ring (3), a spring (4) and a clamping groove (5);
the nut body (1) is provided with an axially through hole along the screwing direction of the bolt, the diameter of the through hole is gradually reduced from the screwing direction of the bolt, and a first through hole (101), a second through hole (102), a third through hole (103) and a fourth through hole (104) are respectively formed;
wherein a groove is arranged on the first through hole (101) along the inner wall of the first through hole (101);
the second through hole (102) is provided with a clamping groove (5) in a regular hexagon shape, and the clamping groove (5) is the same as the inner nut (2) in shape;
the diameter of the fourth through hole (104) is consistent with that of the bolt, and the inner side wall of the fourth through hole is provided with threads matched with the bolt;
a retainer ring (3), an inner nut (2) and a spring (4) are coaxially and sequentially arranged in the through hole of the nut body (1) along the screwing direction of the bolt;
the inner nut (2) is a regular hexagonal nut, and the inner diameter and the specification of the thread of the threaded hole of the inner nut (2) are consistent with the diameter and the specification of the thread of the fourth through hole (104);
the retainer ring (3) is clamped on the groove of the first through hole (101);
one end of the spring (4) is connected with the nut body (1), the other end of the spring is connected with the inner nut (2), and the inner nut (2) is in contact with the retainer ring (3) when the spring (4) is in a free state.
2. A nut structure which does not come off after releasing a fastened state as claimed in claim 1, wherein: the retainer ring (3) is a retainer ring or a stop pin for a hole.
3. A nut structure which does not come off after releasing a fastened state as claimed in claim 1, wherein: the diameter of the third through hole (103) is smaller than the diameter of the circumcircle of the second through hole (102).
4. A nut structure which does not come off after releasing a fastened state as claimed in claim 1, wherein: the spring (4) is a compression spring or a wave-shaped elastic gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880102.1U CN211398209U (en) | 2019-11-04 | 2019-11-04 | Nut structure capable of not falling off after releasing fastening state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880102.1U CN211398209U (en) | 2019-11-04 | 2019-11-04 | Nut structure capable of not falling off after releasing fastening state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398209U true CN211398209U (en) | 2020-09-01 |
Family
ID=72210261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921880102.1U Active CN211398209U (en) | 2019-11-04 | 2019-11-04 | Nut structure capable of not falling off after releasing fastening state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398209U (en) |
-
2019
- 2019-11-04 CN CN201921880102.1U patent/CN211398209U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106640914A (en) | Radial locking anti-loose retreating-stopping nut | |
| JP2004509294A (en) | Blind fastener drive nut assembly | |
| EP1676675A1 (en) | Tool for tightening security nut, tool for releasing security nut, tool for both tightening and releasing security nut, and security nut for exclusive use of these tools | |
| CN103452995A (en) | Nut and mounting method thereof | |
| CN107588078B (en) | A kind of bolt convenient for locking and can be locking | |
| CN211398209U (en) | Nut structure capable of not falling off after releasing fastening state | |
| CN206320157U (en) | The Anti-loosen stop nut radially locked | |
| CN211852455U (en) | Manual quick locking hexagonal flange face nut | |
| CN105387056A (en) | Device for preventing nut looseness | |
| CN206092662U (en) | Elastic cone wedging formula locknut | |
| CN209309102U (en) | A kind of photovoltaic bolt | |
| CN213870670U (en) | Anti-loose nut | |
| CN206600343U (en) | Combination nut | |
| CN214063514U (en) | Locknut composite set | |
| CN111299492B (en) | Manual self-punching riveting tool | |
| CN110977873B (en) | Stud bolt mounting tool and use method thereof | |
| CN214661421U (en) | Hexagonal perforated bolt with retaining function | |
| CN104019110A (en) | Nut | |
| CN210344001U (en) | Extrusion type slotted locking nut | |
| CN210318125U (en) | Fastening device | |
| CN204025296U (en) | A kind of nut | |
| CN220863904U (en) | Stud pre-tightening device | |
| CN219605791U (en) | Bolt assembly with anti-loosening function | |
| CN211975640U (en) | Locknut assembly | |
| CN216768038U (en) | Bolt with elasticity adjustable structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |