CN2434470Y - Detatching-proof screw fastener - Google Patents
Detatching-proof screw fastener Download PDFInfo
- Publication number
- CN2434470Y CN2434470Y CN 00218747 CN00218747U CN2434470Y CN 2434470 Y CN2434470 Y CN 2434470Y CN 00218747 CN00218747 CN 00218747 CN 00218747 U CN00218747 U CN 00218747U CN 2434470 Y CN2434470 Y CN 2434470Y
- Authority
- CN
- China
- Prior art keywords
- nut
- bolt
- handling instrument
- cone
- screw
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to an anti-dismounting screw thread fastening device, which comprises a screw bolt, a screw nut and a handling tool which is matched with the screw bolt and the screw nut. The utility model is characterized in that the head part of a truncated cone of the screw bolt and the big-end bottom of a truncated cone of the screw nut are respectively provide with a slant gap, the handling tool comprises a cone-shaped hole the conicity of which and the conicity of the truncated cone of the screw bolt and the screw nut are same, and the big-end bottom of the cone-shaped hole is provided with projections which can be embedded in the slant gap of the screw bolt and the slant gap of the screw nut. The utility model has the advantages that an integral forming can be adopted, manufacturing cost is reduced, service life and fastening effect are enhanced, and range of use is enlarged.
Description
The utility model relates to threaded fastening device, particularly a kind of nti-removing nut line securing means.
Existing threaded fastening device adopts hex head bolt mostly, and is promptly detachable with conventional instrument, causes that because of bolt is stolen major accident such as facility damage happens occasionally.For this reason, the inventor has disclosed a kind of antitheft threaded fastening device in Chinese utility application numbers 97228826.0, comprising a bolt and one and the nut that is complementary of this bolt, an and handling instrument, be characterized in that this bolt comprises that outer surface middle part has the conical butt head of radial groove, this nut has the truncated cone of radial groove for its outer surface middle part, this handling instrument is one to have the sleeve of a round taper hole, and this taper shape hole wall middle part is provided with a projection that can embed radial groove.Though this securing means has certain anti-theft feature, because radial groove and projection lay respectively at the middle part of cone and conical bore, the manufacturing procedure complexity, the manufacture cost height, working life is short, and because the arm of force is less, fastening effect is relatively poor; In addition, because this handling instrument is a sleeve that engages with spanner by square hole, so bolt length is had certain limitation.
The purpose of this utility model is to provide that a kind of manufacturing procedure is simple, low cost of manufacture, high life, fastening effective and can adapt to the nti-removing nut line securing means of various bolt length.
Nti-removing nut line securing means of the present utility model comprises that one has conical butt head bolt and one and the conical butt nut that is complementary of this bolt, and the handling instrument that is complementary with described screw bolt and nut, this handling instrument have one with the round taper hole of the identical tapering of frustum of a cone of above-mentioned screw bolt and nut, its characteristics are, the big bottom portion of the conical butt head of this bolt has an oblique breach; The big bottom portion of the frustum of a cone of this nut has an oblique breach; The big bottom portion of the round taper hole of this handling instrument is provided with a projection that can embed oblique breach of this bolt and the oblique breach of this nut.
In addition, in above-mentioned nti-removing nut line securing means, above-mentioned handling instrument is one to have the sleeve of the square hole that can engage with spanner.
In addition, in above-mentioned nti-removing nut line securing means, above-mentioned handling instrument is a socket wrench.
Adopt nti-removing nut line securing means of the present utility model, because portion is provided with oblique breach and projection respectively in the big bottom of cone and conical bore, bolt, nut and handling instrument all can adopt pressure processing one-body molded, and operation is simple, low cost of manufacture, long service life; And because the arm of force is big, fastening effective; In addition,, bolt length is not had any restriction, can enlarge using scope because this handling instrument can also can adopt the socket wrench of not being with square hole by square hole and the sleeve that spanner engages except that adopting.
Introduce preferred embodiment of the present utility model below in conjunction with accompanying drawing, in the hope of more specifically understanding purpose, characteristics and the advantage of the utility model nti-removing nut line securing means.
The accompanying drawing simple declaration:
Fig. 1 is the schematic representation of the preferred embodiment of the utility model nti-removing nut line securing means and handling instrument;
Fig. 2 is the sectional view along A-A line among Fig. 1;
Fig. 3 is the sectional view along B-B line among Fig. 1;
Fig. 4 is the sectional view along C-C line among Fig. 1;
Fig. 5 is the sectional view along D-D line among Fig. 1.
Fig. 1-5 is depicted as the preferred embodiment into the utility model nti-removing nut line securing means and handling instrument.As shown in Figure 1, nti-removing nut line securing means of the present utility model comprises that one has the bolt 1 and one and the conical butt nut 2 that is complementary of the screw section 13 of this bolt 1 of a conical butt head 12, and the handling instrument that is complementary with this bolt 1 and nut 2, the big bottom portion of the conical butt head 12 of this bolt 1 has an oblique breach 11; The big end of the frustum of a cone of this nut 2 has an oblique breach 21; This handling instrument comprises that a sleeve 3 and with a round taper hole 31 and a square hole 32 has the socket wrench 4 of a round taper hole 41, this square hole 32 can engage with spanner 34, the tapering of this round taper hole 31,41 is identical with the frustum of a cone of the conical butt head 12 of above-mentioned bolt 1 and above-mentioned nut 2, the big bottom portion of the round taper hole 31 of this sleeve 3 is provided with a projection 33 that can embed the oblique breach 11 of above-mentioned bolt, and the big bottom portion of the round taper hole 41 of this socket wrench 4 is provided with a projection 42 that can embed the oblique breach 21 of this nut.
Can adopt sleeve 3 and socket wrench 4 according to the place situation during use.As shown in Figure 1, be that the taper hole 31 with the sleeve 3 of handling instrument is inserted in the conical butt head 12 of bolt 1, and make projection 33 embed the oblique breach 11 of conical heads 12 big bottom portions; The taper hole 41 of socket wrench 4 is inserted in the truncated cone of nut 2, and makes the oblique breach 21 of protruding 42 insert nuts 2, by spanner 34 and square hole 32 engage rotational sleeve 3 and rotational sleeve spanner 4, threaded fastening device can be tightened or unloaded.
Claims (3)
1. nti-removing nut line securing means, comprise: one has the bolt of conical butt head, the one conical butt nut that is complementary with described bolt, and the handling instrument that is complementary with described screw bolt and nut, described handling instrument have one with the round taper hole of the identical tapering of frustum of a cone of described screw bolt and nut, it is characterized in that the big bottom portion of the conical butt head of described bolt has an oblique breach; The big bottom portion of the frustum of a cone of described nut has an oblique breach; The big bottom portion of the round taper hole of described handling instrument is provided with a projection that can embed oblique breach of described bolt and the oblique breach of nut.
2. nti-removing nut line securing means as claimed in claim 1 is characterized in that, described handling instrument is one to have the sleeve of the square hole that can engage with spanner.
3. nti-removing nut line securing means as claimed in claim 1 is characterized in that described handling instrument is a socket wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218747 CN2434470Y (en) | 2000-08-08 | 2000-08-08 | Detatching-proof screw fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218747 CN2434470Y (en) | 2000-08-08 | 2000-08-08 | Detatching-proof screw fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2434470Y true CN2434470Y (en) | 2001-06-13 |
Family
ID=33584061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00218747 Expired - Fee Related CN2434470Y (en) | 2000-08-08 | 2000-08-08 | Detatching-proof screw fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2434470Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776116A (en) * | 2008-11-18 | 2010-07-14 | 通用电气公司 | Improved barrel nut |
| CN107939803A (en) * | 2017-12-16 | 2018-04-20 | 山西潞安环保能源开发股份有限公司王庄煤矿 | Instrument is torn open for electrical haulage shearer group command control panel fancy fastener and its peace |
-
2000
- 2000-08-08 CN CN 00218747 patent/CN2434470Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776116A (en) * | 2008-11-18 | 2010-07-14 | 通用电气公司 | Improved barrel nut |
| CN107939803A (en) * | 2017-12-16 | 2018-04-20 | 山西潞安环保能源开发股份有限公司王庄煤矿 | Instrument is torn open for electrical haulage shearer group command control panel fancy fastener and its peace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010613 Termination date: 20090908 |