CN2086342U - Screw nut sleeve lock - Google Patents
Screw nut sleeve lock Download PDFInfo
- Publication number
- CN2086342U CN2086342U CN 91212089 CN91212089U CN2086342U CN 2086342 U CN2086342 U CN 2086342U CN 91212089 CN91212089 CN 91212089 CN 91212089 U CN91212089 U CN 91212089U CN 2086342 U CN2086342 U CN 2086342U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- lock
- nut
- steel ball
- screw cap
- 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.)
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Abstract
The utility model relates to a threaded fastener with a lock, comprising a thickening screw nut with a roller path at the outer end and a sleeve barrel with a steel ball type locking mechanism. The sleeve barrel can rotatablely surrounding lock at the outside of the screw nut, and the wrench or other tools can not contact and rotate the screw nut. The utility model can lock bolts, screw nuts and screw plugs whose specifications are above M8, which is suitable for the screw nut of the tyre, the oil drain screw plug of the oil tank, the fixed bolt of the accumulator cell, which are on the automobile, and the explosion protection of the petroleum, chemical industry, and mine. The non removable bolt, screw nut, and screw plug on the anti-leaking equipment can effectively prevent the disassembly for stealing and mistake.
Description
The utility model relates to a kind of threaded fastener that lock is arranged.
Plain bolt or nut need only and just can twist with simple tool, as the lug nut on the motor vehicle, and the purge cock of fuel tank bottom, the fixing bolt of storage battery etc.The burglar just can dismantle it with spanner, steals wheel, fuel oil and storage battery etc.And for example oil, chemical industry, mine etc. require plain bolt, the nut on explosion-proof, the anti-leak equipment, are difficult to prevent the mistake dismounting or steal dismounting.Therefore, be necessary to adopt bolt, the nut that lock is arranged at the said equipment.
This type of patent documentation by retrieval; consult the CN87214981U of bulletin on October 5th, 1988; the utility application specification of " the anti-protector that revolves of oil discharging screw for vehicle fuel tank " by name; this technology is to make the bolt head of purge cock hollow; and open a ring recess in the inwall inner end; the anti-safety cover that revolves that is provided with lock with inside hangs on the purge cock, and the hex head bolt head is wrapped up in not, prevents to rotate plug screw with spanner.It can only be used for the anti-of bolt revolves, and can not be used for nut.In addition, after bolt head is made hollow and opened a ring recess, weakened its former intensity that this has.
The utility model has been made a kind of screw cap sleeve lock that can pin bolt head and nut in order to overcome above-mentioned the deficiencies in the prior art.This sleeve lock is made up of the thickening nut of raceway and the sleeve of interior dress ball type lockable mechanism the outer end.Because sleeve lock bag rotationally is locked in the nut outside, spanner or other instrument can't contact and rotary nut, thereby have realized neither weakening the original intensity of nut, again it are carried out effective locking.
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1, screw cap sleeve lock construction figure.
Fig. 2 is the A-A view among Fig. 1.
Fig. 3 is the B-B view among Fig. 1.
Fig. 4 locks another embodiment's structural drawing for screw cap sleeve.
1-nut among the figure (comprising bolt head and nut), 2-sleeve, 3-steel ball, the 4-retainer, 5-lock housing, 6-lip limit, the 7-key, 8-lock core, 9-seam, the 10-seal ring, 11-circular groove, 12-radial hole, 13-raceway 14-cushion, 15-aluminium flake, 16-locating stud, the 17-locating slot, 18-pick-proof packing ring.
The outer end thickening of nut (1) is also made the raceway (13) that slides for steel ball (3), and thickening external diameter partly is less than or equal to the diameter of nut six side's opposite side, and remaining Dimensions is pressed the threaded fastener standard and made.The end profile of automotive tyre nut is represented in the double dot dash line of accompanying drawing 1 left end.The endoporus of sleeve (2) left end becomes to be slidingly matched with the external diameter of the hexagonal external diameter of nut (1) and retainer (4), the hole inwall has circular groove (11), have on the groove with steel ball (3) number and equate and equally distributed radial hole (12), the slightly larger in diameter in hole is in steel ball (3), the round and elastic pad (14) of interior dress rubber or plastic production, outer end of hole is sealed with aluminium flake (15) riveting.There is seam (9) at the middle part of sleeve (2), and lock housing (5) is pressed in the hole of sleeve (2) right-hand member after assembling with lock core (8), lip limit (6) is inwardly turned over just riveting seal lock housing (5).The structure of lock core (8) is locked with common spring, and locating stud (16) and locating slot (17) are placed restrictions on the rotation angle of lock core (8).Retainer (4) is made bottle cap shape, lock core (8) riveted joint of two middle flutings of semicircle orifice and end of lid bottom, and the outer imperial palace of radial hole of adorning steel ball (3) on the lid circumference is little.Drop out to suitable with the activity of steel ball (3) energy and don't from the inner, hole, the number in hole is consistent with the radial hole on the sleeve (2) with distribution angle.Seal ring (10) is attached at the left end of sleeve (2) with Bond.The dust cover of keyhole can be made bottle cap shape with rubber or plastics, tightly covers the right part of sleeve (2), if not often dismounting of nut (1), also available pressure-sensitive adhesive trade mark, the scraps of paper stick on the keyhole and seal.
Structure described in the utility model is located with the radial hole (12) that the rotation of key (7) moves on the sleeve (2) at when utilization steel ball (3), sleeve (2) left end is enclosed within nut (1) to be gone up and advances, crowded because of nut (1) outer end, steel ball (3) pressure elasticity pad (14) enters in the radial hole (12), continuation propelling along with sleeve (2), when entering raceway (13) top, steel ball (3) released by cushion (14), counter-rotating key (7), retainer (4) just embed the centre of raceway (13) and circular groove (11) with steel ball (3).Extract key (7) out, sleeve (2) can rotate around nut (1) but can not extract, and has so just realized the effective locking to nut (1), and spanner or other instrument all can't rotate the nut (1) that is pinned by sleeve (2) bag.When unblanking, key (7) forwards the position to, and when extracting sleeve (2), steel ball (3) is got in the radial hole (12).
Another embodiment of the present utility model sees accompanying drawing 4 for details.
Be that the circular groove (11) on the sleeve (2) has moved to left and approximated the distance of steel ball (3) diameter with the difference of above-mentioned embodiment; The arc size of circular groove (11) and raceway (13) is slightly larger than the radius of steel ball (3); The motion mode of lock core (8) is changed into by rotation and moving axially; The wall thickness of retainer (4) is slightly less than the radius of steel ball (3), and key (7) adopts the cross flute profile; The left end of nut (1) has press-fited the pick-proof packing ring (18) of shallow lid shape.Present embodiment injects lock core (8) with key (7) and pushes away left when utilization, steel ball (3) enters in the circular groove (11), sleeve (2) left end is enclosed within nut (1) to be gone up and advances, steel ball (3) enters raceway (13) under the extruding of circular groove (11) and sleeve (2) inwall, extract key (7) when propping up sleeve (2) out, nut (1) is locked by sleeve (2) bag.When unblanking, key is injected lock core (8), when pulling out sleeve (2) to the right, steel ball (3) enters in the circular groove (11).The sleeve lock is disengaged.
The utility model can pin bolt, nut, the plug screw of the above plurality of specifications of M8.Be the newcomer in the threaded fastener family.Major part has only the few chipless processes of 3～4 kinds of (except the key mechanism) all available cold hobbings, carries out specialization, standardization, producing in serial form.
Claims (7)
1, a kind of by nut with wrap in the screw cap sleeve that the sleeve lock of its outside forms and lock.Comprise nut (1), sleeve (2), steel ball (3), retainer (4), lock housing (5), key (7), lock core (8), seal ring (10), cushion (14) pick-proof packing ring (18) etc.It is characterized in that: nut (1) end-thickened also made the steel ball raceway, and sleeve (2) and inner ball type lockable mechanism thereof wrap the outside that is locked in nut (1) rotationally.
2, screw cap sleeve lock according to claim 1, the endoporus that it is characterized in that sleeve (2) one ends becomes to be slidingly matched with the external diameter of nut (1), hole wall has circular groove (11) middle part that retainer (4) and steel ball (3) are housed, and lock housing (5) and lock core (8) are housed in the hole of the other end.
3, according to claim 1 and 2 described screw cap sleeve locks, it is characterized in that having with steel ball (3) number on the circular groove (11) of sleeve (2) hole wall and equate and equally distributed radial hole (12), the aperture is slightly larger than steel ball (3), the round and elastic pad (14) of interior dress rubber or plastics.
4, according to claim 1 and 2 described screw cap sleeves lock, it is characterized in that retainer (4) makes bottle cap shape, the radial hole of dress steel ball (3) is arranged on the circumference, the number in hole is consistent with the radial hole (12) on the sleeve (2) with distribution angle.
5, according to claim 1 and 2 described screw cap sleeve locks, it is characterized in that the inner of lock core (8) and the bottom of retainer (4) link together.
6, screw cap sleeve lock according to claim 1 is characterized in that seal ring (10) is contained in the end of sleeve (2).
7, screw cap sleeve according to claim 1 lock is characterized in that pick-proof packing ring (18) makes shallow lid shape, be fitted in nut (1) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91212089 CN2086342U (en) | 1991-01-17 | 1991-01-17 | Screw nut sleeve lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91212089 CN2086342U (en) | 1991-01-17 | 1991-01-17 | Screw nut sleeve lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2086342U true CN2086342U (en) | 1991-10-09 |
Family
ID=4920659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91212089 Withdrawn CN2086342U (en) | 1991-01-17 | 1991-01-17 | Screw nut sleeve lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2086342U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1661191B (en) * | 2003-12-08 | 2010-04-28 | 曹平生 | Anti-detaching and anti-theft lock |
| CN104775691A (en) * | 2015-04-14 | 2015-07-15 | 深圳市纽贝尔电子有限公司 | Screw electronic lock device |
| CN105545106A (en) * | 2015-11-10 | 2016-05-04 | 上海圣享科技股份有限公司 | Thread connection device with locking structure |
| CN105605077A (en) * | 2015-09-16 | 2016-05-25 | 刘杰 | Anti-theft rotating device |
| CN106764184A (en) * | 2017-02-13 | 2017-05-31 | 戴璨遥 | Plug-in type pipe connects latch assembly |
| CN109306994A (en) * | 2018-11-16 | 2019-02-05 | 佛山科学技术学院 | A kind of anti-theft nut structure |
| CN109882493A (en) * | 2019-04-17 | 2019-06-14 | 广东电网有限责任公司 | A kind of nut screw anti-theft protective device |
| CN112228337A (en) * | 2020-11-17 | 2021-01-15 | 段宏康 | Disassembly and assembly structure of reciprocating pump valve cover |
-
1991
- 1991-01-17 CN CN 91212089 patent/CN2086342U/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1661191B (en) * | 2003-12-08 | 2010-04-28 | 曹平生 | Anti-detaching and anti-theft lock |
| CN104775691A (en) * | 2015-04-14 | 2015-07-15 | 深圳市纽贝尔电子有限公司 | Screw electronic lock device |
| CN104775691B (en) * | 2015-04-14 | 2017-07-07 | 深圳市纽贝尔电子有限公司 | A kind of screw electrical lock apparatus |
| CN105605077A (en) * | 2015-09-16 | 2016-05-25 | 刘杰 | Anti-theft rotating device |
| CN105545106A (en) * | 2015-11-10 | 2016-05-04 | 上海圣享科技股份有限公司 | Thread connection device with locking structure |
| CN105545106B (en) * | 2015-11-10 | 2019-04-19 | 上海圣享科技股份有限公司 | The device that is spirally connected with lock structure |
| CN106764184A (en) * | 2017-02-13 | 2017-05-31 | 戴璨遥 | Plug-in type pipe connects latch assembly |
| CN106764184B (en) * | 2017-02-13 | 2019-01-29 | 戴璨遥 | Plug-in type pipe connects locking assembly |
| CN109306994A (en) * | 2018-11-16 | 2019-02-05 | 佛山科学技术学院 | A kind of anti-theft nut structure |
| CN109882493A (en) * | 2019-04-17 | 2019-06-14 | 广东电网有限责任公司 | A kind of nut screw anti-theft protective device |
| CN109882493B (en) * | 2019-04-17 | 2024-04-30 | 广东电网有限责任公司 | Nut screw anti-theft protection device |
| CN112228337A (en) * | 2020-11-17 | 2021-01-15 | 段宏康 | Disassembly and assembly structure of reciprocating pump valve cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |