CN203335593U - Disassembly prevention nut cover - Google Patents
Disassembly prevention nut cover Download PDFInfo
- Publication number
- CN203335593U CN203335593U CN2013204187681U CN201320418768U CN203335593U CN 203335593 U CN203335593 U CN 203335593U CN 2013204187681 U CN2013204187681 U CN 2013204187681U CN 201320418768 U CN201320418768 U CN 201320418768U CN 203335593 U CN203335593 U CN 203335593U
- Authority
- CN
- China
- Prior art keywords
- cylindrical sleeves
- nut cover
- axis hole
- hole
- bolt
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a disassembly prevention nut cover which comprises a cylindrical sleeve. A hexagonal prism section and a cylindrical section are axially arranged on the surface of the outer circle of the cylindrical sleeve. A stepped shaft hole is formed in the cylindrical sleeve, wherein the big-diameter end of the stepped shaft hole is a receding hole used for giving way to the head portion of a fastening bolt, and the small-diameter end of the stepped shaft hole is provided with internal threads which are connected with the threads of the threaded rod of the fastening bolt in a matched mode. The receding hole of the cylindrical sleeve and the hexagonal prism section are located at the same axial end, and the internal threads of the cylindrical sleeve and the cylindrical section are located at the same axial end. The disassembly prevention nut cover can prevent bolts and nuts on machinery equipment from being disassembled at will and protect the exposed portions of the bolts and the nuts on the machinery equipment from making contact with corrosive gas and liquid, dust and steam, and prevent the bolts and the nuts from being corroded and rusting.
Description
Technical field
The utility model relates to technical field of fastening, is specifically related to a kind of anti-disassembling nut cover.
Background technique
With bolt, nut, as fastening piece, be common in machinery.The electric power pylon, microwave communication tower, bridge etc. that are in field bolt for equipment, fastening nuts or fixing after, the inoperative personnel just can dismantle it by common spanner or pliers, thereby cause these equipment to have stolen risk.If especially the problems referred to above occur in bridge etc., life safety that will the serious harm numerous people.And due to the corrosion that is subject to corrosivity gas, liquid or be subject to the corrosion of dust, aqueous vapor, nut and bolt corrosion often occur, get rusty, the fastening performance of impact machinery, bring very big inconvenience also to during maintenance the dismounting of bolt.Exposing of bolt, nut, also unavoidably meet accident and damage.
Summary of the invention
The purpose of this utility model is the deficiency existed for prior art; a kind of safe and reliable anti-disassembling nut cover is provided; this anti-disassembling nut cover can prevent that bolt, the nut on machinery equipment arbitrarily is disassembled; and also can protect the bolt exposed parts on machinery equipment; avoid contacting with corrosivity gas, liquid; avoid contacting with dust, aqueous vapor, nut, the unlikely burn into of bolt are got rusty.
The purpose of this utility model is achieved in that a kind of anti-disassembling nut cover, comprise cylindrical sleeves, the outer round surface of described cylindrical sleeves is provided with six prism section and cylindrical sections vertically, be provided with the ladder axis hole in described cylindrical sleeves, the bigger diameter end of described ladder axis hole is the resigning hole that is used to the head of clamping bolt to step down, the miner diameter end of described ladder axis hole is provided with internal thread, with the screw flight of clamping bolt, be connected, the resigning hole of described cylindrical sleeves and six prism sections are positioned at same axial end, and the internal thread of described cylindrical sleeves and cylindrical section are positioned at same axial end.
The axial length of described cylindrical sleeves is 23mm.
The axial length of the internal thread of the ladder axis hole miner diameter end of described cylindrical sleeves is 13mm.
The diameter of the resigning hole of the bigger diameter end of described ladder axis hole is 14mm.
One axial end of six prism sections of described cylindrical sleeves is provided with circular outer rim, and another axial end and the cylindrical section of six prism sections are adjacent.
Owing to having adopted such scheme, the utlity model has following advantage: due to this anti-disassembling nut cover, comprise cylindrical sleeves, the outer round surface of described cylindrical sleeves is provided with six prism section and cylindrical sections vertically, be provided with the ladder axis hole in described cylindrical sleeves, the bigger diameter end of described ladder axis hole is the resigning hole that is used to the head of clamping bolt to step down, the miner diameter end of described ladder axis hole is provided with internal thread, with the screw flight of clamping bolt, be connected, the resigning hole of described cylindrical sleeves and six prism sections are positioned at same axial end, the internal thread of described cylindrical sleeves and cylindrical section are positioned at same axial end.The screw rod of clamping bolt is stretched in the ladder axis hole of cylindrical sleeves, rotation tightens the bolt head of clamping bolt, make the part of the screw rod of clamping bolt stretch out the mounting hole on machinery equipment, then the cylindrical section of cylindrical sleeves is stretched in the mounting hole on machinery equipment, again the nut rotation is tightened to the extension at the screw rod of clamping bolt, finally, the rotation tightening nut, the bolt head of clamping bolt is sunk in the resigning hole of cylindrical sleeves, and make the bolt head of clamping bolt spacing in resigning hole by the ladder axis hole in cylindrical sleeves.This structure both can be fastening by machinery equipment; can prevent that again bolt, nut on machinery equipment arbitrarily are disassembled; and also can protect the bolt exposed parts on machinery equipment; avoid contacting with corrosivity gas, liquid; avoid contacting with dust, aqueous vapor, nut, the unlikely burn into of bolt are got rusty.Owing to having added the machinery that the anti-disassembling nut cover also can prevent the bolt exposed parts to meet accident, damage.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
The A-A sectional view that Fig. 2 is Fig. 1;
The B that Fig. 3 is Fig. 2 is to schematic diagram.
In accompanying drawing, 1 is cylindrical sleeves, and 2 is six prism sections, and 3 is cylindrical section, and 4 is the ladder axis hole, and 41 is resigning hole, and 5 is internal thread, and 6 is outer rim.
Embodiment
Referring to Fig. 1 to Fig. 3, a kind of anti-disassembling nut cover, comprise cylindrical sleeves 1, the outer round surface of described cylindrical sleeves 1 is provided with six prism sections 2 and cylindrical section 3 vertically, be provided with ladder axis hole 4 in described cylindrical sleeves 1, the bigger diameter end of described ladder axis hole 4 is the resigning hole 41 that is used to the head of bolt to step down, the miner diameter end of described ladder axis hole 4 is provided with internal thread 5, with the screw flight of bolt, be connected, the resigning hole 41 of described cylindrical sleeves 1 and six prism sections 2 are positioned at same axial end, and internal thread 5 and the cylindrical section 3 of described cylindrical sleeves 1 are positioned at same axial end.The axial length of the described cylindrical sleeves 1 of the present embodiment is 23mm.The axial length of the internal thread 5 of the ladder axis hole miner diameter end of described cylindrical sleeves is 13mm.The diameter of the resigning hole 41 of the bigger diameter end of described ladder axis hole is 14mm.One axial end of six prism sections 2 of described cylindrical sleeves is provided with circular outer rim 6, six prism section 2 another axial ends are adjacent with cylindrical section 3, be provided with changeover portion between described six prism sections and cylindrical section, make the cylindrical section of cylindrical sleeves to coordinate with the mounting hole on machinery equipment well.
Working procedure of the present utility model is: the screw rod of clamping bolt is stretched in the ladder axis hole of cylindrical sleeves, rotation tightens the bolt head of clamping bolt, make the part of the screw rod of clamping bolt stretch out the mounting hole on machinery equipment, then the cylindrical section of cylindrical sleeves is stretched in the mounting hole on machinery equipment, again the nut rotation is tightened to the extension at the screw rod of clamping bolt, finally, the rotation tightening nut, the bolt head of clamping bolt is sunk in the resigning hole of cylindrical sleeves, and make the bolt head of clamping bolt spacing in resigning hole by the ladder axis hole in cylindrical sleeves.
The utility model both can be fastening by machinery equipment; can prevent that again bolt, nut on machinery equipment arbitrarily are disassembled, and also can protect the bolt exposed parts on machinery equipment, avoid contacting with corrosivity gas, liquid; avoid contacting with dust, aqueous vapor, the unlikely burn into of bolt is got rusty.Owing to having added the machinery that the anti-disassembling nut cover also can prevent the bolt exposed parts to meet accident, damage.
Claims (5)
1. an anti-disassembling nut cover, it is characterized in that: comprise cylindrical sleeves, the outer round surface of described cylindrical sleeves is provided with six prism section and cylindrical sections vertically, be provided with the ladder axis hole in described cylindrical sleeves, the bigger diameter end of described ladder axis hole is the resigning hole that is used to the head of clamping bolt to step down, the miner diameter end of described ladder axis hole is provided with internal thread, with the screw flight of clamping bolt, be connected, the resigning hole of described cylindrical sleeves and six prism sections are positioned at same axial end, and the internal thread of described cylindrical sleeves and cylindrical section are positioned at same axial end.
2. anti-disassembling nut cover according to claim 1, it is characterized in that: the axial length of described cylindrical sleeves is 23mm.
3. anti-disassembling nut cover according to claim 1, it is characterized in that: the axial length of the internal thread of the ladder axis hole miner diameter end of described cylindrical sleeves is 13mm.
4. anti-disassembling nut cover according to claim 1, it is characterized in that: the diameter of the resigning hole of the bigger diameter end of described ladder axis hole is 14mm.
5. anti-disassembling nut cover according to claim 1, it is characterized in that: an axial end of six prism sections of described cylindrical sleeves is provided with circular outer rim, and another axial end and the cylindrical section of six prism sections are adjacent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204187681U CN203335593U (en) | 2013-07-15 | 2013-07-15 | Disassembly prevention nut cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204187681U CN203335593U (en) | 2013-07-15 | 2013-07-15 | Disassembly prevention nut cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335593U true CN203335593U (en) | 2013-12-11 |
Family
ID=49704270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204187681U Expired - Fee Related CN203335593U (en) | 2013-07-15 | 2013-07-15 | Disassembly prevention nut cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335593U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952761A (en) * | 2016-07-17 | 2016-09-21 | 张若玮 | Pin-type fastener |
| CN107448443A (en) * | 2017-08-22 | 2017-12-08 | 苏州威富达精密机械制造有限公司 | One kind can branch sleeve |
| CN109714924A (en) * | 2019-02-21 | 2019-05-03 | 山西全安新技术开发有限公司 | It is a kind of for fastening the method and device of electric apparatus for explosive atmospheres cavity |
-
2013
- 2013-07-15 CN CN2013204187681U patent/CN203335593U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952761A (en) * | 2016-07-17 | 2016-09-21 | 张若玮 | Pin-type fastener |
| CN107448443A (en) * | 2017-08-22 | 2017-12-08 | 苏州威富达精密机械制造有限公司 | One kind can branch sleeve |
| CN109714924A (en) * | 2019-02-21 | 2019-05-03 | 山西全安新技术开发有限公司 | It is a kind of for fastening the method and device of electric apparatus for explosive atmospheres cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20150715 |
|
| EXPY | Termination of patent right or utility model |