CN201071871Y - Locking and antitheft device of nut - Google Patents
Locking and antitheft device of nut Download PDFInfo
- Publication number
- CN201071871Y CN201071871Y CNU2007200458814U CN200720045881U CN201071871Y CN 201071871 Y CN201071871 Y CN 201071871Y CN U2007200458814 U CNU2007200458814 U CN U2007200458814U CN 200720045881 U CN200720045881 U CN 200720045881U CN 201071871 Y CN201071871 Y CN 201071871Y
- Authority
- CN
- China
- Prior art keywords
- wedge
- spiral
- helicoid
- bolt
- cylinder body
- 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 - Lifetime
Links
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 5
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
- F16B39/26—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object with spring washers fastened to the nut or bolt-head
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/12—Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
- Dowels (AREA)
Abstract
A nut anti-loose and anti-theft device of spiral wedge locking type comprises a thin-walled sleeve, a round screw gasket and a screw wedge. About one circle of helicoid is arranged in the bottom inner hole of the thin-walled sleeve and a through-opening is arranged in the forefront end of the helicoid, so that the helicoids in the sleeve bottom can press the screw wedge on the inner hole cone. The notch in the front end of the helicoid can also press against the tail of the large end of the screw wedge. The thin-walled sleeve can connect the screw wedge and the round screw gasket into one body, since the inner hole of the large end of the thin-walled sleeve and the cylindrical of the round screw gasket are interference fit. When the device reverses anticlockwise, the helicoid notch inside the thin-walled sleeve will disengage from the large end tail of the screw wedge, so that the top of the incomplete screw tooth inside the round screw gasket will compress the screw wedge. A larger reversing angel of the device against the bolt will produce a better the locking effect, thus achieving anti-loose and anti-theft purposes for the nut.
Description
Technical field
The utility model relates to 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 purpose of this utility model 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.
The technical solution of the utility model 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 helicoid 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 the utility model plan view
Fig. 2 is the generalized section of the circular spiral shell pad of the utility model
Fig. 3 is the schematic representation of the utility model spiral wedge
Fig. 4 is the generalized section of the utility model thin walled cylinder body plan view
Fig. 5 is the schematic representation of the utility model thin walled cylinder body side view
Fig. 6 is used view for the utility model at the standard bolt nut
Embodiment
As shown in Figure 1, the utility model spiral wedge yoke compact form locking anti-theft nut unit 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 the utility model spiral wedge yoke compact form locking anti-theft nut unit, 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 the utility model spiral wedge yoke compact form locking anti-theft nut unit 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 the utility model spiral wedge yoke compact form locking anti-theft nut unit, 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 the utility model spiral wedge yoke compact form locking anti-theft nut unit 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 utility model 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 model utility 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 utility model--the technological scheme that form obtained of thin walled cylinder body profile equivalent transformation, all within protection domain of the present utility model.
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 about 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200458814U CN201071871Y (en) | 2007-09-18 | 2007-09-18 | Locking and antitheft device of nut |
| PCT/CN2008/072408 WO2009036707A1 (en) | 2007-09-18 | 2008-09-18 | An anti-loose and anti-theft device for nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200458814U CN201071871Y (en) | 2007-09-18 | 2007-09-18 | Locking and antitheft device of nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201071871Y true CN201071871Y (en) | 2008-06-11 |
Family
ID=39550429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200458814U Expired - Lifetime CN201071871Y (en) | 2007-09-18 | 2007-09-18 | Locking and antitheft device of nut |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201071871Y (en) |
| WO (1) | WO2009036707A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009036707A1 (en) * | 2007-09-18 | 2009-03-26 | Nanjing Yunfan Technology Industry Co., Ltd | An anti-loose and anti-theft device for nut |
| 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 |
| CN112096716A (en) * | 2020-09-10 | 2020-12-18 | 李沛 | Open type reverse spiral taper type stop spring washer with alloy steel tool bit |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006323A (en) * | 2017-12-11 | 2018-05-08 | 张家港保税区泰德瑞尔轨道科技有限公司 | Pipe clamp with anti-theft feature |
| CN112303094B (en) * | 2020-11-20 | 2021-12-14 | 河南航天精工制造有限公司 | Non-metal insert slotted nut |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101794U (en) * | 1991-09-30 | 1992-04-15 | 俞苗根 | Nut looseness-proof and anti-theft device |
| CN2260913Y (en) * | 1995-08-25 | 1997-08-27 | 江苏省送变电工程公司 | Screw-nut anti-theft and anti-loosening device and special spanner thereof |
| CN2400624Y (en) * | 1999-02-23 | 2000-10-11 | 俞苗根 | Anti-theft locking assembly and special assembling and disassembling tool for nut |
| CN2438865Y (en) * | 2000-09-19 | 2001-07-11 | 俞苗根 | Locking & antitheft device of nut |
| CN2752515Y (en) * | 2004-11-18 | 2006-01-18 | 江苏省送变电公司 | Locking and antitheft device for nut and special spanner thereof |
| CN201071871Y (en) * | 2007-09-18 | 2008-06-11 | 南京云帆科技实业有限公司 | Locking and antitheft device of nut |
-
2007
- 2007-09-18 CN CNU2007200458814U patent/CN201071871Y/en not_active Expired - Lifetime
-
2008
- 2008-09-18 WO PCT/CN2008/072408 patent/WO2009036707A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009036707A1 (en) * | 2007-09-18 | 2009-03-26 | Nanjing Yunfan Technology Industry Co., Ltd | An anti-loose and anti-theft device for nut |
| 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 |
| CN112096716A (en) * | 2020-09-10 | 2020-12-18 | 李沛 | Open type reverse spiral taper type stop spring washer with alloy steel tool bit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009036707A1 (en) | 2009-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070918 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |