CN204312515U - A kind of with protecting cover nut - Google Patents
A kind of with protecting cover nut Download PDFInfo
- Publication number
- CN204312515U CN204312515U CN201420742758.8U CN201420742758U CN204312515U CN 204312515 U CN204312515 U CN 204312515U CN 201420742758 U CN201420742758 U CN 201420742758U CN 204312515 U CN204312515 U CN 204312515U
- Authority
- CN
- China
- Prior art keywords
- hole
- protective housing
- nut
- diameter dimension
- protecting cover
- 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.)
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a kind of with protecting cover nut, comprise nut body and protective housing, the first through hole and the second through hole is provided with in described nut body, described first through hole and the second through hole are concentric hole, described first through hole communicates with the second through hole, the inwall of described first through hole is provided with the screw thread matched with bolt, described protective housing inserts in the second through hole, the inwall of described second through hole is provided with annular groove, it is protruding that described protective housing is provided with the ring matched with toroidal cavity, the face of described projection is cambered surface, compared with prior art, the utility model can prevent thread from damaging, avoid bolt failure, and dust not easily enters nut, structure is simple, the protective housing that can match according to outstanding spiro rod length choice for use.
Description
[technical field]
The utility model relates to a kind of technical field of nut, particularly a kind of technical field of with protecting cover nut.
[background technique]
Nut is also nut, and nut and screw rod, screw fit use, and plays and connects fastening mechanism effect.The nut wherein often used at present is Wheel nut, and it is most widely used.The nut of this structure, it is hexagonal band location thrust washer, for band is female cylindrical in the middle of it, when operator by spanner locking screw is screwed into nut tighter time, its screw rod generally can expose nut outside, the thread exposed on the bolt of nut is easily damaged, and causes bolt failure.
[model utility content]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of with protecting cover nut, can prevent thread from damaging, avoid bolt failure.
For achieving the above object, the utility model proposes a kind of with protecting cover nut, comprise nut body and protective housing, the first through hole and the second through hole is provided with in described nut body, described first through hole and the second through hole are concentric hole, described first through hole communicates with the second through hole, the inwall of described first through hole is provided with the screw thread matched with bolt, described protective housing inserts in the second through hole, the inwall of described second through hole is provided with annular groove, it is protruding that described protective housing is provided with the ring matched with toroidal cavity, and the face of described projection is cambered surface.
As preferably, the diameter dimension of described second through hole is greater than the diameter dimension of the first through hole, and the diameter dimension of described protective housing is equal with the diameter dimension of the second through hole.
As preferably, the bottom surface of described protective housing is provided with the containing groove to fovea superior, and the diameter dimension of described containing groove is greater than the diameter dimension of the first through hole, and the upper-end surface of described protective housing is cambered surface.
As preferably, the limit, lower end of described protective housing is provided with ring projection.
The beneficial effects of the utility model: the utility model is by inserting in the second through hole by protective housing, the inwall of the second through hole is provided with annular groove, it is protruding that protective housing is provided with the ring that matches with toroidal cavity, and protruding face is cambered surface, and protective housing can the outstanding screw rod of cover cap, compared with prior art, can prevent thread from damaging, avoid bolt failure, and dust not easily enter nut, structure is simple, the protective housing that can match according to outstanding spiro rod length choice for use.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of with protecting cover nut of the utility model.
In figure: 1-nut body, 2-protective housing, 3-toroidal cavity, 4-ring projection, 11-first through hole, logical, the 21-containing groove of 12-second.
[embodiment]
Consult Fig. 1, a kind of with protecting cover nut of the utility model, comprise nut body 1 and protective housing 2, the first through hole 11 and the second through hole 12 is provided with in described nut body 1, described first through hole 11 and the second through hole 12 are concentric hole, described first through hole 11 communicates with the second through hole 12, the inwall of described first through hole 11 is provided with the screw thread matched with bolt, described protective housing 2 inserts in the second through hole 12, the inwall of described second through hole 12 is provided with annular groove 3, described protective housing 2 is provided with the ring projection 4 matched with toroidal cavity 3, the described face of protruding 4 is cambered surface, the diameter dimension of described second through hole 12 is greater than the diameter dimension of the first through hole 11, the diameter dimension of described protective housing 2 is equal with the diameter dimension of the second through hole 12, the bottom surface of described protective housing 2 is provided with the containing groove 21 to fovea superior, the diameter dimension of described containing groove 21 is greater than the diameter dimension of the first through hole 11, the upper-end surface of described protective housing 2 is cambered surface, the limit, lower end of described protective housing 2 is provided with ring projection 4.
Utility model works process:
A kind of with protecting cover nut of the utility model in the course of the work, protective housing 2 is inserted in the second through hole 12, the inwall of the second through hole 12 is provided with annular groove 3, protective housing 2 is provided with the ring projection 4 matched with toroidal cavity 3, the face of protruding 4 is cambered surface, protective housing 2 can the outstanding screw rod of cover cap, compared with prior art, can prevent thread from damaging, avoid bolt failure, and dust not easily enters nut, structure is simple, the protective housing that can match according to outstanding spiro rod length choice for use.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection domain of the present utility model to the scheme after the utility model simple transformation.
Claims (4)
1. a with protecting cover nut, it is characterized in that: comprise nut body (1) and protective housing (2), the first through hole (11) and the second through hole (12) is provided with in described nut body (1), described first through hole (11) and the second through hole (12) are concentric hole, described first through hole (11) communicates with the second through hole (12), the inwall of described first through hole (11) is provided with the screw thread matched with bolt, described protective housing (2) inserts in the second through hole (12), the inwall of described second through hole (12) is provided with annular groove (3), described protective housing (2) is provided with the ring projection (4) matched with toroidal cavity (3), the face of described projection (4) is cambered surface.
2. a kind of with protecting cover nut as claimed in claim 1, it is characterized in that: the diameter dimension of described second through hole (12) is greater than the diameter dimension of the first through hole (11), and the diameter dimension of described protective housing (2) is equal with the diameter dimension of the second through hole (12).
3. a kind of with protecting cover nut as claimed in claim 1, it is characterized in that: the bottom surface of described protective housing (2) is provided with the containing groove (21) to fovea superior, the diameter dimension of described containing groove (21) is greater than the diameter dimension of the first through hole (11), and the upper-end surface of described protective housing (2) is cambered surface.
4. a kind of with protecting cover nut as claimed any one in claims 1 to 3, is characterized in that: the limit, lower end of described protective housing (2) is provided with ring projection (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742758.8U CN204312515U (en) | 2014-12-01 | 2014-12-01 | A kind of with protecting cover nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742758.8U CN204312515U (en) | 2014-12-01 | 2014-12-01 | A kind of with protecting cover nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312515U true CN204312515U (en) | 2015-05-06 |
Family
ID=53134833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420742758.8U Active CN204312515U (en) | 2014-12-01 | 2014-12-01 | A kind of with protecting cover nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278658A (en) * | 2021-11-11 | 2022-04-05 | 武汉船用机械有限责任公司 | Bolt protective cover and using method thereof |
-
2014
- 2014-12-01 CN CN201420742758.8U patent/CN204312515U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278658A (en) * | 2021-11-11 | 2022-04-05 | 武汉船用机械有限责任公司 | Bolt protective cover and using method thereof |
| CN114278658B (en) * | 2021-11-11 | 2024-04-26 | 武汉船用机械有限责任公司 | Bolt protection cover and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |