CN201090590Y - Detachable type anti-theft nut - Google Patents
Detachable type anti-theft nut Download PDFInfo
- Publication number
- CN201090590Y CN201090590Y CNU2007201841423U CN200720184142U CN201090590Y CN 201090590 Y CN201090590 Y CN 201090590Y CN U2007201841423 U CNU2007201841423 U CN U2007201841423U CN 200720184142 U CN200720184142 U CN 200720184142U CN 201090590 Y CN201090590 Y CN 201090590Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- outer sleeve
- inner sleeve
- wall
- tool
- 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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Abstract
Disclosed is a detachable antitheft nut which comprises an inner sleeve provided with female screws, and a hexagonal outer sleeve; wherein the inner sleeve is nested inside the outer sleeve and is fixed therein with interference; retain steps are correspondingly arranged on the outer wall of the inner sleeve and on the inner wall of the outer sleeve; a through hole is arranged on the side wall of the outer sleeve and a blind hole is correspondingly arranged on the outer wall of the inner sleeve. The utility model is installed after all the common nuts are installed and is screwed tight through a spanner until the intended force moment is reached, and the interference between the outer sleeve and the inner sleeved is broken; so in this way, the inner sleeve can not be screwed loosen even through the rotation of the of the outer sleeve, thus antitheft effect is reliable. In the case of disassembly, a special dismantling tool is necessary; the outer sleeve and the inner sleeve can be disassembled without damage through threading the head part of the tool through the through hole of the outer sleeve and matching the head part of the tool with the blind hole of the inner sleeve and then screwing the inner sleeve and the outer sleeve with the tool. Meanwhile, replacing and maintenance are even more convenient.
Description
Technical field: the utility model relates to a kind of anti-theft nut.
Background technique: some are located at outdoor main equipments often need install anti-theft nut additional after fastening again linking, and prevents that released fastening piece from stealing.Anti-theft nut has many kinds of forms, and some adopts special-shaped external member, and it is fastening to need special tool to install, and it is convenient inadequately to install.Also have the anti-theft nut that adopts interior cover and the riveted joint of hexangle type overcoat now, can screw up with a wrench as common tightening nut when mounted, easy to use.In actual conditions, sometimes because install or maintenance need the fixedly connected of release apparatus, present anti-theft nut all can't be dismantled, and can only destructively remove, and has influence on the reliability of equipment easily, and the inefficiency of removing, and is convenient inadequately.
Summary of the invention: at the deficiencies in the prior art, it is a kind of easy for installation that the utility model provides, and dismountable detachable antitheft nut.
The utility model comprises the interior cover that is provided with internal thread and the overcoat of hexangle type, in be placed on interference secure fit in the overcoat, and be equipped with corresponding retaining step on the outer wall of interior cover and the inwall of overcoat, the sidewall of overcoat is provided with through hole, the corresponding blind hole that is provided with on the outer wall of interior cover.
The utility model is installed in plain nut backmost, screws up with a wrench, reach set moment after, the destroyed slippage of the interference fit between the inside and outside cover, even rotating jacket also can't turn interior cover like this, reliably antitheft.Dismounting if desired then must be used the removal tool special of customization, utilizes the projection of tool head to pass the through hole of overcoat, and and the blind hole contact matching of interior cover, inside and outside cover rotated simultaneously pulls down, do not need destructive the dismounting, repair and replacement are more convenient.
Further specify the utility model below in conjunction with drawings and Examples.
Description of drawings: Fig. 1 is embodiment's a main structure schematic representation;
Fig. 2 is the main structure schematic representation of interior cover;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is the main structure schematic representation of overcoat;
Fig. 5 is the plan view of Fig. 4;
Fig. 6 is embodiment's an installment state schematic representation;
Fig. 7 is the removal tool special schematic representation.
Embodiment: to shown in Figure 5, interior cover 1 is provided with internal thread as Fig. 1, and overcoat 2 is a hexangle type, and is the same with the plain nut specification.Be equipped with corresponding retaining step 5 on the inwall of the outer wall of interior cover 1 and overcoat 2, interior cover 1 places overcoat 2 interference secure fit, and the sidewall of overcoat 2 is provided with through hole 3, the corresponding blind hole 4 that is provided with on the outer wall of interior cover 1.Value of interference fit between interior cover 1 and the overcoat 2 can calculate when Assembling Production as requested and adjust, and the slippage moment of tightening is changed.As shown in Figure 6, present embodiment is installed in plain nut backmost, screw up with a wrench, after reaching setting moment, the destroyed slippage of interference fit between interior cover 1 and the overcoat 2, even cover 1 in rotating jacket 2 also can't turn like this, 5 on the retaining step of cooperation can prevent overcoat 2 axial slips, antitheft reliable, easy for installation.
When removing anti-theft nut, as shown in Figure 7, use special-purpose extracting tool 6, utilize the boss 7 of its head to pass the through hole 3 of overcoat 2, blind hole 4 alignment that idles up to interior cover 1 snaps in, and interior cover 1 and overcoat 2 is pulled together unclamped, and avoids the destructive equipment that influences of removing.Blind hole 4 in general on the cover 1 is provided with several, and the position cooperation is convenient when dismounting like this.
Claims (2)
1. detachable antitheft nut, comprise the interior cover that is provided with internal thread and the overcoat of hexangle type, in be placed on interference secure fit in the overcoat, and be equipped with corresponding retaining step on the outer wall of interior cover and the inwall of overcoat, it is characterized by: the sidewall of overcoat (2) is provided with through hole (3), the corresponding blind hole (4) that is provided with on the outer wall of interior cover (1).
2. detachable antitheft nut according to claim 1 is characterized by: the blind hole (4) on the interior cover (1) has several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201841423U CN201090590Y (en) | 2007-10-13 | 2007-10-13 | Detachable type anti-theft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201841423U CN201090590Y (en) | 2007-10-13 | 2007-10-13 | Detachable type anti-theft nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090590Y true CN201090590Y (en) | 2008-07-23 |
Family
ID=39862351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201841423U Expired - Fee Related CN201090590Y (en) | 2007-10-13 | 2007-10-13 | Detachable type anti-theft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090590Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179413A (en) * | 2015-10-28 | 2015-12-23 | 苏州道众机械制造有限公司 | Anti-theft bolt of tire |
| CN105173590A (en) * | 2015-09-01 | 2015-12-23 | 中汽昌兴（洛阳）机电设备工程有限公司 | Skid and production conveying line using skid |
| CN109139673A (en) * | 2018-11-07 | 2019-01-04 | 海盐华悦紧固件有限公司 | A kind of non-dismountable type anti-theft nut of track |
-
2007
- 2007-10-13 CN CNU2007201841423U patent/CN201090590Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105173590A (en) * | 2015-09-01 | 2015-12-23 | 中汽昌兴（洛阳）机电设备工程有限公司 | Skid and production conveying line using skid |
| CN105173590B (en) * | 2015-09-01 | 2017-07-21 | 中汽昌兴（洛阳）机电设备工程有限公司 | Skid and the production pipeline using the skid |
| CN105179413A (en) * | 2015-10-28 | 2015-12-23 | 苏州道众机械制造有限公司 | Anti-theft bolt of tire |
| CN109139673A (en) * | 2018-11-07 | 2019-01-04 | 海盐华悦紧固件有限公司 | A kind of non-dismountable type anti-theft nut of track |
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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: 20080723 Termination date: 20091113 |