CN100516564C - Nut loose-proof anti-theft device - Google Patents
Nut loose-proof anti-theft device Download PDFInfo
- Publication number
- CN100516564C CN100516564C CNB200710131629XA CN200710131629A CN100516564C CN 100516564 C CN100516564 C CN 100516564C CN B200710131629X A CNB200710131629X A CN B200710131629XA CN 200710131629 A CN200710131629 A CN 200710131629A CN 100516564 C CN100516564 C CN 100516564C
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- Prior art keywords
- helical
- wedge
- spiral
- bolt
- cylinder body
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- 238000009434 installation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 208000004141 microcephaly Diseases 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
A helical wedge locking type nut anti-looseness and anti-theft device is disclosed. The invention comprises a thin wall sleeve, a round helical washer, and a helical wedge, a helical surface of about a circle is arranged in the inner hole at the bottom of the thin wall sleeve, a through opening is arranged at the utmost front end of the helical surface, therefore the helical surface at the sleeve bottom can tightly press the helical wedge on the inner hole conical surface of the round helical washer, the notch at the front end of the helical surface can hold against the tail part of the large end of the helical wedge, and because the interference fit is performed between the inner hole of the large end of the thin wall sleeve and the outer circle of the round helical washer, the thin wall sleeve can connect the helical wedge and the round helical washer into a whole body. If the initial position of the installation of the helical wedge can be well controlled, the helical wedge and the round helical washer can be together screwed onto a bolt nut to be protected, and the installation is very convenient, without the help of special-purpose tools. When the device is rotated reversely, the helical surface notch in the thin wall sleeve can be broken away from the tail part of the large end of the helical wedge, the incomplete thread top in the round helical washer presses the helical wedge, and the larger the reverse rotation angle on the bolt of the device is, the better the locking effect is, to reach the purpose of anti-looseness and anti-theft.
Description
Technical field
The present invention relates to a kind of locking anti-theft nut unit, particularly spiral wedge yoke compact form locking anti-theft nut unit.
Background technique
Since spiral wedge yoke compact form locking anti-theft nut unit came out first in 1991 (referring to Chinese patent literature 91220429.X locking anti-theft nut unit), through nineteen ninety-five (referring to Chinese patent literature 95240393.5 locking anti-theft nut units and special spanner thereof), (referring to Chinese patent literature 99227349.8 nut anti-looseness anti-theft components and loading and unloading special installation tool) improved perfect for several times in 1999, it does not change the standard bolt nut structure, do not weaken the threaded fastener mechanical strength, anti-loose anti-theft is simple in structure, the advantage of stable performance is subjected to user's welcome deeply.Yet its shortcoming that is difficult to overcome is that trouble is installed.Because intrinsic spiral wedge yoke compact form locking anti-theft nut unit is to be combined by a circular spiral shell pad and an elastic helix wedge, therefore, this device will divide three steps when installing on bolt.At first circular spiral shell pad is spun on appearing partly of claimed bolt and nut fastener bolt, and is threaded to standard nut and develops, with slip-joint pliers clamping circle spiral shell pad cylindrical it is tightened again with hand; Secondly, pick up the spiral wedge with forefinger and thumb again, its spiral chute of aiming at bolt firmly sticked in the groove, and the microcephaly who makes this spiral wedge preceding major part after must not adorn instead; The last spiral wedge rotation that will snap in the bolt spiral chute with intrinsic special-purpose assembly wrench again is advanced into spiral shell pad the inside.Owing to must slough gloves when installing, the free-hand spiral wedge can being sticked in the spiral chute of bolt, outdoor temperature reaches under the environment of subzero tens degree in case the weather is cold and the ground is frozen, the workman not wear gloves in the open air on the iron tower and that is installed is difficult to do.In addition, the spiral wedge is long-pending very little, and very light in weight unless you give your whole attention to it from pointing slippage, is lost from iron tower, microwave communication tower and also to be difficult to find.Thought that this device is skillfully constructed, the anti-loose anti-theft reliable performance though the expert is consistent since the nearly more than ten years, yet its loaded down with trivial details installation procedure and clumsy setting tool its extensive use and popularization have been restricted widely.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, providing a kind of can combine circular spiral shell pad and spiral wedge, and special installation tool that need not be special also can with they disposable be installed on the bolt to develop with standard nut tighten, and needn't slough gloves in installing, the spiral wedge can not adorned mistake yet and drop.The locking anti-theft nut unit that promptly integrates circular spiral shell pad, spiral wedge and setting tool.
Technological scheme of the present invention is that locking anti-theft nut unit is made up of thin walled cylinder body, circular spiral shell pad and spiral wedge.The tube end endoporus of thin walled cylinder body is provided with the helicoid about a week, the minimum dimension of this endoporus is more bigger than the bolt path that will assemble, and the pitch of its helicoid, thickness and section configuration are consistent or more smaller with pitch, thread form, thickness and the section configuration of bolt.At the opening that a break-through is arranged foremost of helicoid, the helicoid at the tube end just can be pressed on the spiral wedge on the endoporus conical surface of circular spiral shell pad like this, and the helicoid breach with opening can withstand the afterbody of the big end of spiral wedge.Because between the big end endoporus of thin walled cylinder body and the cylindrical of circular spiral shell pad is interference fit, the spiral wedge is positioned on the circular gasket female cone hole, and by the helicoid at the bottom of the thin walled cylinder body tube it is compressed.Therefore thin walled cylinder body can link into an integrated entity spiral wedge, circular spiral shell pad, is combined into complete spiral wedge yoke compact form locking anti-theft nut unit.As long as the spiral wedge of controlling well is installed initial position, just can successfully be screwed in them on the claimed bolt and nut together.Because the outstanding foremost breach of the helicoid in the thin walled cylinder body withstands the afterbody of the big end of spiral wedge all the time; therefore when turning clockwise in the spiral chute of circular spiral shell pad at claimed bolt; be fixed on thin walled cylinder body inner helical surface breach foremost on the circular spiral shell pad and just head on the spiral wedge all the time and in the spiral chute of bolt, move forward, till the circular spiral shell pad inner side surface of this assemblying body and claimed standard nut are adjacent to.And when this assemblying body reverses counterclockwise; the helical curve breach in the thin walled cylinder body promptly throw off with the big end afterbody of spiral wedge since this spiral wedge all the time banding in the spiral chute of bolt; the imperfect thread crest in the at this moment circular spiral shell pad then is pressed on the wedge shape periphery of spiral wedge; when this assemblying body reverse angle big more; then locking effect is good more, reaches the antitheft effect of nut anti-looseness.
Description of drawings
Fig. 1 is the generalized section of plan view of the present invention
Fig. 2 is the generalized section of the circular spiral shell pad of the present invention
Fig. 3 is the schematic representation of spiral wedge of the present invention
Fig. 4 is the generalized section of thin walled cylinder body plan view of the present invention
Fig. 5 is the schematic representation of thin walled cylinder body side view of the present invention
Fig. 6 is used view for the present invention at the standard bolt nut
Embodiment
As shown in Figure 1, spiral wedge yoke compact form locking anti-theft nut unit of the present invention is by circular spiral shell pad (1), and spiral wedge (2) and thin walled cylinder body (3) combine.The cylindrical of circular spiral shell pad (1) and thin walled cylinder body (3) are held greatly and are interference fit, the therebetween inside of spiral wedge (2) between endoporus.
Shown in Figure 2, the circular spiral shell pad of spiral wedge yoke compact form locking anti-theft nut unit of the present invention, the big end of its endoporus is a conical bore, and small bore end has 1 to 2 tooth internal thread, and its tooth form pitch is all consistent with the tooth form pitch of the bolt thread that will cooperate.
Shown in Figure 3, the spiral wedge of spiral wedge yoke compact form locking anti-theft nut unit of the present invention is to be that leg-of-mutton wire rolls and forms by the transverse section, its internal diameter is also smaller than the bolt thread path that will cooperate, so that banding is in the spiral chute of bolt firmly.This spiral wedge launches the wedge shape elongate strip that the back dwindles continuously for the triangular cross-section area, and its pitch is also consistent with the bolt pitch that will cooperate.
Shown in Figure 4, the thin walled cylinder body of spiral wedge yoke compact form locking anti-theft nut unit of the present invention, one hole is arranged at the bottom of its thin-walled cylinder, size is more bigger than the bolt path that will cooperate, hole edge has the helicoid about a week, the sectional shape and the consistency of thickness of the thickness of this helicoid and section configuration and the bolt thread that will cooperate, its pitch is also consistent.Between the big end endoporus of thin walled cylinder body and the cylindrical of circular spiral shell pad is interference fit.Helicoid about one week of giving prominence at the bottom of the thin walled cylinder body tube can be pressed abd fixed on the spiral wedge on the conical bore of circular spiral shell pad.
Shown in Figure 5, the thin walled cylinder body of spiral wedge yoke compact form locking anti-theft nut unit of the present invention at the bottom of it endoporus be provided with the opening of a break-through, helicoid projection at the bottom of so just can the making tin corresponding to breach in cross section of formation foremost and the big end afterbody of spiral wedge cross section partly, this breach are exactly the work part that promotion spiral wedge advances in the bolt spiral chute when this device is installed.The periphery of this thin walled cylinder body is a regular hexagon, and its purposes is that available common wrench is tightened in it on bolt.
Fig. 6 is the present invention's schematic representation in actual applications.After standard bolt nut method is routinely tightened; when in the direction of the clock being screwed in bolt on hand locking anti-theft nut unit shown in Figure 1; the internal thread of at first circular spiral shell pad (1) just can very successfully enter in the spiral chute of bolt; spiral wedge (2) does thin walled cylinder body (3) tube basic skill or training that (because being interference fit between thin walled cylinder body (3) and the circular spiral shell pad (1)) also enters in the spiral chute of bolt under the effect partly then; when circular spiral shell pad (1) to the standard nut that will protect that continues to turn clockwise is adjacent to; under thin walled cylinder body (3) work effect partly, spiral wedge (2) is also followed and is advanced into the position that will arrive.Pull the periphery regular hexagon of thin walled cylinder body (3) again with common wrench, during interference produces between the strength of pulling is greater than circular spiral shell pad (1) cylindrical and thin walled cylinder body (3) endoporus friction, circular spiral shell pad (1) then stops operating, and the work of thin walled cylinder body (3) partly will continue promotion spiral wedge (2) and advance, the crest of imperfect thread is pressed on spiral wedge (2) the periphery wedge surface fully on circular spiral shell pad (1) conical bore of wedging, eliminated and the bolt path between the gap till.If counterclockwise pull the outer Hexagon of thin walled cylinder body (3) with common wrench; it also can overcome the friction of itself and circular spiral shell pad (1) and be backed out; but spiral wedge (2) owing to can not withdrawed from bolt by wedging thereupon, so just can reach the antitheft purpose of protective standard nut anti-looseness with circular spiral shell pad (1).
The invention of this spiral wedge yoke compact form locking anti-theft nut unit is condensed into a light and handy thin walled cylinder body (3) dexterously to original complex structure, the heavy special-purpose assembly wrench of use.Because propelling force is not too big when installing, this thin walled cylinder body (3) is the available metal made both, also available plastic pressing forming, and cost is very cheap.This device has been assembled into one before dispatching from the factory, circular spiral shell pad and spiral wedge mounting type are also dead by limit, also can not misoperation when therefore installing.
Its invention has overcome the difficult problem that spiral wedge (2) is installed difficulty, lost easily up hill and dale, has also solved the operator and has been with the also installable difficult problem of gloves.And, the installation procedure that divided three road steps just can finish is in the past settled at one go now, the installation effect is very good, is subjected to user's welcome deeply.Because worldwide inner nut anti-loose anti-theft market demand is very big.Therefore, appearance of the present invention will greatly promote the extensive use of spiral wedge yoke compact form locking anti-theft nut unit in worldwide, open up great scope of land for middle home made article enters the international market.Except that above-mentioned example, all with the present invention---the technological scheme that form obtained of thin walled cylinder body profile equivalent transformation, all within protection scope of the present invention.
Claims (4)
1, spiral wedge yoke compact form locking anti-theft nut unit, by circular spiral shell pad, spiral wedge and thin walled cylinder body are formed, it is characterized in that: be interference fit between circular spiral shell pad cylindrical and the big nose end of thin walled cylinder body, the spiral wedge is positioned on the circular spiral shell pad female cone hole, and by the helicoid at the bottom of the thin walled cylinder body tube it is compressed, correct the afterbody that withstands the big end of spiral wedge before the break-through breach at the bottom of the thin walled cylinder body tube on the helicoid.
2, spiral wedge yoke compact form locking anti-theft nut unit according to claim 1, it is characterized in that: circular spiral shell pad endoporus small end is the internal thread of 1 to 2 tooth, its thread form and pitch are consistent with the thread form and the pitch of bolt, the female cone hole that big end forms for chamfering, the internal thread that drops on this conical bore forms the imperfect thread that all left and right sides crest height raises gradually.
3, spiral wedge yoke compact form locking anti-theft nut unit according to claim 1, it is characterized in that: the spiral wedge is to be that leg-of-mutton wire rolls and forms by the transverse section, its internal diameter is smaller than bolt screw thread path, the spiral wedge launches the wedge shape elongate strip that the back dwindles continuously for the triangular cross-section area, and tooth form after the spiral wedge rolls and pitch are consistent with the tooth form and the pitch of bolt.
4, spiral wedge yoke compact form locking anti-theft nut unit according to claim 1, it is characterized in that: a hole is arranged at the bottom of the thin walled cylinder body tube, its size is more bigger than the bolt thread path that will cooperate, hole edge has the helicoid about a week, the thickness of this helicoid and section configuration are consistent with the thickness and the section configuration of the bolt thread that will cooperate, and its pitch is also consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710131629XA CN100516564C (en) | 2007-09-18 | 2007-09-18 | Nut loose-proof anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710131629XA CN100516564C (en) | 2007-09-18 | 2007-09-18 | Nut loose-proof anti-theft device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144497A CN101144497A (en) | 2008-03-19 |
| CN100516564C true CN100516564C (en) | 2009-07-22 |
Family
ID=39207179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710131629XA Expired - Fee Related CN100516564C (en) | 2007-09-18 | 2007-09-18 | Nut loose-proof anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100516564C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922500A (en) * | 2010-08-25 | 2010-12-22 | 华和平 | Device for preventing loosening and dismounting nuts and tool special for mounting and dismounting same |
| CN102748367A (en) * | 2011-04-20 | 2012-10-24 | 西门子公司 | Gasket, fixing device and distribution box |
| CN108488191B (en) * | 2018-06-27 | 2024-02-06 | 浙江洪扬汽车零部件有限公司 | Anti-loose transverse hole nut |
| CN112709746A (en) * | 2019-10-24 | 2021-04-27 | 何天麟 | Taper needle type anti-theft nut sheath |
| CN111808618B (en) * | 2020-06-30 | 2021-11-12 | 河北华丰能源科技发展有限公司 | Smoke guide sleeve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5020953A (en) * | 1980-11-26 | 1991-06-04 | Fuji Seimitsu Mfg. Co., Ltd. | Lock nut |
-
2007
- 2007-09-18 CN CNB200710131629XA patent/CN100516564C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5020953A (en) * | 1980-11-26 | 1991-06-04 | Fuji Seimitsu Mfg. Co., Ltd. | Lock nut |
Non-Patent Citations (1)
| Title |
|---|
| 特开平11-325039A 1999.11.26 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101144497A (en) | 2008-03-19 |
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