CN213206287U - Self-locking nut - Google Patents
Self-locking nut Download PDFInfo
- Publication number
- CN213206287U CN213206287U CN202022165497.6U CN202022165497U CN213206287U CN 213206287 U CN213206287 U CN 213206287U CN 202022165497 U CN202022165497 U CN 202022165497U CN 213206287 U CN213206287 U CN 213206287U
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- annular groove
- thread section
- self
- nut
- internal thread
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Abstract
The utility model relates to a self-locking nut, which comprises a nut body, wherein a screw hole is arranged in the nut body, a first annular groove, an internal thread section and a second annular groove are sequentially arranged on the inner wall of the screw hole from left to right, the depths of the first annular groove and the second annular groove are consistent, a first annular sealing ring is clamped in the first annular groove, a second annular sealing ring is clamped in the second annular groove, the inner diameter of the first annular sealing ring is smaller than that of the internal thread section, and the inner diameter of the second annular sealing ring is larger than or equal to that of the internal thread section; the utility model provides a self-locking nut can efficient cooperation double-screw bolt carry out the auto-lock.
Description
Technical Field
The utility model relates to a mechanical fastener produces and makes technical field, in particular to self-locking nut.
Background
The nut is a nut, and is screwed together with a bolt or a screw rod to play a role in fastening, and one element which is necessary for all production and manufacturing machines is divided into carbon steel, stainless steel, non-ferrous metal (such as copper) and other types according to different materials.
However, since the conventional nut does not have the anti-loosening function, the nut is easily loosened or lost. The loosening or the loss of the nut can bring great potential safety hazards sometimes, for example, once the nut along the railway is lost or loosened, the nut can bring great threat to the lives and properties of people. In order to avoid accidents, railway workers need to overhaul the locking condition of the nut regularly, but the probability of accidents is reduced, but the workload of the railway workers is greatly increased.
In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a self-locking nut with higher industrial utility value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a nut for cooperating the screw rod and carrying out the auto-lock.
The utility model discloses a self-locking nut, the nut comprises a nut body, the screw has been seted up in the nut body, from left to right on the inner wall of screw be equipped with first annular groove, internal thread section and second annular groove in proper order, first annular groove and second annular groove's the degree of depth is unanimous, the card is equipped with first ring type seal in the first annular groove, the card is equipped with second ring type seal in the second annular groove, first ring type seal's internal diameter is less than the internal diameter of internal thread section, second ring type seal's internal diameter is greater than or equal to the internal diameter of internal thread section.
Furthermore, the inner diameter of the internal thread section is 9-10 mm.
Further, the internal diameter of first ring seal is 8mm, the internal diameter of second ring seal is 10 mm.
Further, the first annular groove is a square groove.
Further, the second annular groove is a U-shaped groove.
Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:
compared with the prior art, the screw rod fixing device has the advantage that the screw rod fixing device can be well matched with various screw rods to achieve a fastening effect.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a cross-sectional view of the self-locking nut of the present invention.
1 nut body 2 first annular groove
3 internal thread section 4 second annular groove
5 first ring seal 6 second ring seal
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Fig. 1 shows a self-locking nut, including nut body 1, the screw has been seted up in the nut body 1, from left to right be equipped with first annular groove 2 in proper order on the inner wall of screw, internal thread section 3 and second annular groove 4, the degree of depth of first annular groove 2 and second annular groove 4 is unanimous, 2 inside callipers of first annular groove are equipped with first ring seal 5, 4 inside callipers of second annular groove are equipped with second ring seal 6, the internal diameter of first ring seal 5 is less than the internal diameter of internal thread section 3, the internal diameter of second ring seal 6 is greater than or equal to the internal diameter of internal thread section 3.
The utility model provides a principle of auto-lock nut as follows:
the self-locking nut comprises a nut body 1, a screw hole is arranged in the nut body 1 in a penetrating manner, a first annular groove 2 for clamping a sealing ring, an internal thread section 3 and a second annular groove 4 for clamping the sealing ring are sequentially arranged on the inner wall of the screw hole from left to right, and because the depths of the first annular groove 2 and the second annular groove 4 are consistent, when the first annular groove 2 is internally clamped with the first annular sealing ring 5 and the second annular groove 4 is internally clamped with the second annular sealing ring 6, because the inner diameter of the first annular sealing ring 5 is smaller than that of the internal thread section 3 and the inner diameter of the second annular sealing ring 6 is larger than or equal to that of the internal thread section 3, a screw rod extending into the screw hole can be self-locked by matching the first annular sealing ring 5, the internal thread section 3 and the second annular sealing groove, when the screw rod sequentially passes through the second annular groove 4, the internal thread section 3 and the first annular groove, earlier through the internal diameter second ring seal 6 that is greater than internal thread section 3, business turn over that can be free, then carry out threaded connection through the cooperation of internal thread section 3, be less than internal thread section 3's first ring seal 5 through the internal diameter at last, because the internal surface of first ring seal 5 is the internal surface design of protrusion internal thread section 3, so can be after screw rod screw in screw, go deep into first ring seal groove and cooperate first ring seal 5 to realize the auto-lock, and second ring seal 6 in the second ring seal groove can realize better sealed, if do not need the auto-lock, the direction of turning is in proper order through first ring seal groove, internal thread section 3 and second ring seal groove.
In this embodiment, in order to enable the first annular sealing ring 5 and the second annular sealing ring 6 to be matched with the thread section to realize self-locking on a screw rod extending into the self-locking nut, the inner diameter of the inner thread section 3 is 9-10 mm, the inner diameter of the first annular sealing ring 5 is 8mm, and the inner diameter of the second annular sealing ring 6 is 10 mm.
In the present embodiment, in order to control the elastic range of the first annular sealing ring 5 disposed in the first annular groove 2, the first annular groove 2 is a square groove.
In the present embodiment, the second annular groove 4 is a U-shaped groove in order to provide a resilient range of the second annular sealing ring 6 which is clamped in the second annular groove 4.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A self-locking nut is characterized in that: the nut comprises a nut body, the screw has been seted up in the nut body, by left to right be equipped with first annular groove, internal thread section and second annular groove in proper order on the inner wall of screw, the degree of depth of first annular groove and second annular groove is unanimous, the inside callipers of first annular groove is equipped with first ring seal, the inside callipers of second annular groove is equipped with second ring seal, first ring seal's internal diameter is less than the internal diameter of internal thread section, second ring seal's internal diameter is more than or equal to the internal diameter of internal thread section.
2. The self-locking nut of claim 1, wherein: the inner diameter of the inner thread section is 9-10 mm.
3. The self-locking nut of claim 1, wherein: the internal diameter of first ring seal is 8mm, the internal diameter of second ring seal is 10 mm.
4. The self-locking nut of claim 1, wherein: the first annular groove is a square groove.
5. The self-locking nut of claim 1, wherein: the second annular groove is a U-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022165497.6U CN213206287U (en) | 2020-09-28 | 2020-09-28 | Self-locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022165497.6U CN213206287U (en) | 2020-09-28 | 2020-09-28 | Self-locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213206287U true CN213206287U (en) | 2021-05-14 |
Family
ID=75823676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022165497.6U Active CN213206287U (en) | 2020-09-28 | 2020-09-28 | Self-locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213206287U (en) |
-
2020
- 2020-09-28 CN CN202022165497.6U patent/CN213206287U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |