CN201739312U - Locking and theft protection nut - Google Patents
Locking and theft protection nut Download PDFInfo
- Publication number
- CN201739312U CN201739312U CN2010201335870U CN201020133587U CN201739312U CN 201739312 U CN201739312 U CN 201739312U CN 2010201335870 U CN2010201335870 U CN 2010201335870U CN 201020133587 U CN201020133587 U CN 201020133587U CN 201739312 U CN201739312 U CN 201739312U
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- nut body
- groove
- nut
- overcoat
- rib
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Abstract
The utility model discloses a locking and theft protection nut, a screw thread is disposed on an inner hole surface of a nut body, moreover, at least one theft protection groove with varied depth is disposed on the inner hole surface along the direction of the screw thread, a stopper, an inner spring and an inner ball bearing are disposed in each theft protection groove, the external surface of the nut body adopts a stepped structure, a jacket is sleeved on the shrinkage cylindrical surface at the rear end, the jacket can rotate on the nut body, the height of the jacket is no higher than that of the shrinkage cylindrical nut body section at the rear end of the nut body, at least one tilt hole or tilt groove is disposed on the shrinkage cylindrical surface at the rear end of the nut body, an outer spring and an outer ball bearing are disposed in each tilt hole or tilt groove, moreover, at least one slot is disposed on the inner surface of the jacket, and the slots are matched with the tilt holes or tilt grooves in positions. The utility model has advantages of novel design, strong commonality, convenient use and good locking and theft protection effects.
Description
One, technical field: the utility model relates to the nut that uses on a kind of open-air building site, particularly relates to a kind of anti-loose anti-theft nut.
Two, background technique: common nut does not have anti-theft feature, at some special occasions, locate as the electric power pylon of electric power system, the guardrail of expressway etc., for preventing lawless person's destruction, then require nut to have anti-theft feature, for this reason, people have designed various anti-theft nuts, such as nut being designed to polygonal cylindricality, anti-stealing and selling perhaps is installed in nut, though these designs have certain anti-theft feature, theftproof performance still is not ideal, and for the anti-nut of stealing and selling is arranged, installation procedure is complicated; In addition, also having a kind of scheme is that the inwall of nut is opened a groove, place a steel ball in the groove, as the patent No. is 200720090142.7 the disclosed anti-theft nut of utility model patent, though its theftproof performance strengthens to some extent, its needs special-purpose instrument could go up jack panel, nut for different size, need to be equipped with the special tool of different size, this brings some troubles to construction, has also increased cost simultaneously.
Three, model utility content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of modern design, highly versatile, easy to use and anti-loose anti-theft nut that anti-loose anti-theft is effective are provided.
The technical solution of the utility model is: a kind of anti-loose anti-theft nut, contain nut body, the bore area of described nut body is provided with screw thread, and, this bore area upper edge hand of spiral is provided with the antitheft groove of at least one degree of deepening, a block is set in the described antitheft groove, inner spring and interior ball, wherein, described block is fixedlyed connected with described antitheft groove, described nut body outer surface is a staircase structural model, overcoat of suit on the undergauge cylinder type surface, its rear end, the two Spielpassung, described overcoat can rotate on described nut body, and the height of described overcoat is not higher than the height of described nut body rear end undergauge cylinder type nut body section, and described nut body rear end is provided with a slope hole or tipper on the undergauge cylinder type surface at least, be provided with outer spring and outer ball in described slope hole or the tipper, and described overcoat internal circular surfaces is provided with the draw-in groove of degree of deepening, and described draw-in groove and described slope hole or tipper position are complementary.
The outer surface of described overcoat is a cylinder type, or is the rib square, or is the combination of cylinder type and rib square.Described rib square is digonous square, or is the triangular square, or is four rib squares, or is six rib squares, or is eight rib squares.
The degree of depth of described antitheft groove is progressively shoaled to two ends by the centre; The degree of depth of described draw-in groove is progressively shoaled to two ends by the centre.The sectional shape of described draw-in groove is a V-shape.
Described nut body front end outer surface is the truncated cone type, and the point diameter on this truncated cone type surface is less than the rear end diameter.
The beneficial effects of the utility model are:
When 1, the utility model overcoat clockwise rotated, outer ball blocked overcoat and nut body, nut body is clockwise rotated with bolt screw; When overcoat rotated counterclockwise, outer ball fell back in the slope hole, and overcoat and nut body are thrown off, and can only dally on nut body, can prevent effectively that so therefore, antitheft relaxation effect is good because of the backward rotation overcoat makes nut body and bolt whiz.In addition, when nut body clockwise rotated, interior ball fell back on antitheft groove depths, and nut body and bolt are screwed smoothly, and when nut body rotated counterclockwise, interior ball blocked nut body and bolt, make nut body can not with the bolt whiz, realize the multiple anti-theft feature that loosens.
2, the outer surface of the utility model overcoat is rib side or cylinder, its rib is convenient to spanner and fixes, and its cylinder is convenient to pipe tongs and is fixed, and, spanner or pipe tongs can be used with the overcoat on the nut body of different size, are convenient to construction and increase work efficiency.
3, the front end of the utility model nut body is a truncated cone shape, and the molecule that can avoid theft effectively uses oppositely rotating nut body by force of stealing tool.
4, the utility model modern design, easy to use adapts to the demand of different occasions, has good economic benefit and social benefit after the popularization.
Four, description of drawings:
Fig. 1 is the structural representation of anti-loose anti-theft nut;
Fig. 2 is the side view of anti-loose anti-theft nut shown in Figure 1.
Five, embodiment:
Embodiment one: referring to Fig. 1～Fig. 2, among the figure, anti-loose anti-theft nut contains nut body 5, the bore area of nut body 5 is provided with screw thread, and, the antitheft groove 4 that this bore area upper edge hand of spiral is provided with a degree of deepening (as required, also can be provided with two, three, four, five, six or the like), a block 3 is set in the antitheft groove 4, inner spring 2 and interior ball 1, wherein, block 3 is fixedlyed connected with antitheft groove 4, nut body 5 outer surfaces are staircase structural model, overcoat 6 of suit on the undergauge cylinder type surface, its rear end, the two Spielpassung, overcoat 6 can rotate on nut body 5, the height of overcoat 6 is not higher than the height of nut body 5 rear end undergauge cylinder type nut body sections, and undergauge cylinder type surface, nut body 5 rear end is provided with a slope hole 8 (also can be tipper), is provided with outer spring 9 and outer ball 10 in the slope hole 8, and overcoat 6 internal circular surfaces are provided with draw-in groove 7.
The outer surface of overcoat 6 is the rib square, is six rib squares among the figure, also can be triangular square, four rib squares or is eight rib squares or the like.
The degree of depth of antitheft groove 4 is progressively shoaled to two ends by the centre; Draw-in groove 7 is progressively shoaled to two ends by the centre for degree of deepening groove, its degree of depth.The sectional shape of draw-in groove 7 is a V-shape.Nut body 5 front end outer surfaces are the truncated cone type, and the point diameter on this truncated cone type surface is less than the rear end diameter.
During use, outer six sides that are stuck in overcoat 6 with spanner go up and clockwise rotate, outer ball 10 closely contacts with overcoat 6 inwalls under the effect of outer spring 9, when forwarding draw-in groove 7 to, outer ball 10 enters draw-in groove 7, at this moment, the diameter sum of outer ball 10 and nut body 5 is greater than the internal diameter of overcoat 6, and draw-in groove 7 promotes outer ball 10 and outwards moves, overcoat 6 can not be dallied on nut body 5, can only clockwise rotate along being subjected to force direction to promote nut body 5, nut body 5 inner threads and bolt spin, and ball 1 moved in antitheft groove 4 in bolt promoted, inner spring 2 is compressed, nut body 5 is further spun with bolt, spin put in place after, remove spanner and get final product.If backward rotation overcoat 6, draw-in groove 7 promote outer ball 10 and move in slope hole 8, outer spring 9 is compressed, and at this moment, overcoat 6 dallies on nut body 5, can not drive nut body 5 backward rotation.And, even nut body 5 has the tendency of counter-rotating, ball 1 outwards moved in bolt will promote so, the diameter of ball 1 present position will block bolt less than the diameter of bolt in this moment, and nut body 5 and bolt can not be relatively rotated, that is: nut body 5 can not become flexible, more can not screw out, thereby anti-loose anti-theft is effective from bolt.
Embodiment two: present embodiment and embodiment one are basic identical, and something in common does not repeat, and difference is: the outer surface of overcoat is a cylinder type, adopts the pipe tongs rotating jacket, screws and puts in place thereby drive nut body and bolt.
Embodiment three: present embodiment and embodiment two are basic identical, something in common does not repeat, difference is: the outer surface of overcoat is a cylinder type, and in the middle of the cylinder type surface, be provided with two and fix the plane, form digonous square, triangular square, four rib squares also can be set or be eight rib squares or the like.
The concrete structure and quantity, the concrete structure of change draw-in groove and the concrete structure of change overcoat that change antitheft groove can be formed a plurality of embodiments, are common variation of the present utility model, do not describe in detail one by one at this.
Claims (6)
1. anti-loose anti-theft nut, contain nut body, the bore area of described nut body is provided with screw thread, and, this bore area upper edge hand of spiral is provided with the antitheft groove of at least one degree of deepening, a block is set in the described antitheft groove, inner spring and interior ball, wherein, described block is fixedlyed connected with described antitheft groove, it is characterized in that: described nut body outer surface is a staircase structural model, overcoat of suit on the undergauge cylinder type surface, its rear end, the two Spielpassung, described overcoat can rotate on described nut body, and the height of described overcoat is not higher than the height of described nut body rear end undergauge cylinder type nut body section, and described nut body rear end is provided with a slope hole or tipper on the undergauge cylinder type surface at least, be provided with outer spring and outer ball in described slope hole or the tipper, and described overcoat internal circular surfaces is provided with the draw-in groove of degree of deepening, and described draw-in groove and described slope hole or tipper position are complementary.
2. anti-loose anti-theft nut according to claim 1 is characterized in that: the outer surface of described overcoat is a cylinder type, or is the rib square, or is the combination of cylinder type and rib square.
3. anti-loose anti-theft nut according to claim 2 is characterized in that: described rib square is digonous square, or is the triangular square, or is four rib squares, or is six rib squares, or is eight rib squares.
4. anti-loose anti-theft nut according to claim 1 is characterized in that: the degree of depth of described antitheft groove is progressively shoaled to two ends by the centre; The degree of depth of described draw-in groove is progressively shoaled to two ends by the centre.
5. anti-loose anti-theft nut according to claim 4 is characterized in that: the sectional shape of described draw-in groove is a V-shape.
6. according to each described anti-loose anti-theft nut of claim 1-5, it is characterized in that: described nut body front end outer surface is the truncated cone type, and the point diameter on this truncated cone type surface is less than the rear end diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201335870U CN201739312U (en) | 2010-03-18 | 2010-03-18 | Locking and theft protection nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201335870U CN201739312U (en) | 2010-03-18 | 2010-03-18 | Locking and theft protection nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739312U true CN201739312U (en) | 2011-02-09 |
Family
ID=43554587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201335870U Expired - Fee Related CN201739312U (en) | 2010-03-18 | 2010-03-18 | Locking and theft protection nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026972A (en) * | 2018-08-22 | 2018-12-18 | 平湖巨龙紧固件有限公司 | A kind of tamper nut |
-
2010
- 2010-03-18 CN CN2010201335870U patent/CN201739312U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026972A (en) * | 2018-08-22 | 2018-12-18 | 平湖巨龙紧固件有限公司 | A kind of tamper nut |
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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: 20110209 Termination date: 20110318 |