CN2498396Y - Anti-theft screw nut - Google Patents
Anti-theft screw nut Download PDFInfo
- Publication number
- CN2498396Y CN2498396Y CN 01231049 CN01231049U CN2498396Y CN 2498396 Y CN2498396 Y CN 2498396Y CN 01231049 CN01231049 CN 01231049 CN 01231049 U CN01231049 U CN 01231049U CN 2498396 Y CN2498396 Y CN 2498396Y
- Authority
- CN
- China
- Prior art keywords
- nut
- groove
- shell
- nut body
- body1
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model comprises a nut body1 and a shell2 hooded on the nut body1, and is characterized in that the nut body1 is provided with a ring groove5; a ring groove4 is arranged at the corresponding place of the inner face of the shell; an opening snap ring 3 is arranged inside the ring groove of the nut body1; the upper section of the nut body1 is hexagonal, the lower section of the nut body1 is round and the groove is arranged at the lower part of the nut body1; the lower section of the groove at the inner face of the shell is arc; the snap ring 3 partially extends out of the nut body; the shell takes the shape of a column and the upper end face is annular.
Description
Technical field: the utility model belongs to the machanical fastener technical field, especially has the nut of anti-theft feature.
Background technique: in the existing patented technology, the kind of anti-theft nut is more, as the patent No. be 92242955.3,93228857.X, 97211532.3 etc. anti-theft nut, though structure difference, common deficiency are that component are many, structure is too complicated, manufacture difficulty is big, the cost of production height is unfavorable for large-scale mass production, and practicability is not strong.
Summary of the invention: the anti-theft nut that provides a kind of parts few, simple in structure is provided the purpose of this utility model.
Its technological scheme is such: this model utility is made up of nut body and the shell that covers on the body, and nut body has the circle groove, and shell inner face and its opposite position also have the circle groove, and a slotted collar is arranged in the nut body groove; This nut body top is hexagonal section, and the bottom is a circular cross-section, and groove is positioned at the bottom; The following partial cross section of shell inner face groove is curved; Body of clasp has part to protrude in nut body; Shell is cylindrical, and its upper-end surface is a ring.
This model utility in use, nut body is spun on the bolt, under the jacket, strikes downwards again with instrument, snap ring on shell and nut body groove is collided, because the following partial cross section of shell inner face groove is curved, slotted collar can be compressed into the nut body groove gradually, and shell is continued down, relative up to the nut body groove with outer casing groove, snap ring ejects because of elastic reaction, and the part body of clasp enters outer casing groove, and then shell is blocked.Like this, nut body is covered, and can't touch nut body, and the turn shell, shell is circular, only can rotate round nut body, can not drive nut body to rotate, thus can't unscrew nut, thus play antitheft effect.
The utility model has only three parts, and is simple in structure, and assembling cooperates easily, and parts process easily, is suitable for mass production, practical, good anti-theft effect.
Description of drawings: Fig. 1 is the utility model structural representation.Wherein 1 is nut body, and 2 is shell, and 3 is slotted collar.
Fig. 2 is a cut-away view of outer cover.Wherein 4 is groove.
Fig. 3 is the nut body schematic representation.Wherein 5 is groove.
Embodiment: as shown in Figure 1, this model utility is made up of nut body 1, shell 2, slotted collar 3.As shown in Figure 3, the cross section, top of nut body 1 is hexagon, and lower section is rounded, and there is circle groove 5 outside, bottom.As shown in Figure 2, shell 2 is rounded, and inner face and nut body groove 5 opposite positions also have circle groove 4, and the upper-end surface of shell 2 is ring, and Circularhole diameter is identical with the nut body screwhole diameter.As shown in Figure 1, shell 2 covers on the nut body 1, and slotted collar 3 is stuck between nut body groove 5 and the outer casing groove 4.During use, earlier slotted collar 3 is sticked in the groove 5 of nut body 1, slotted collar 3 has part to protrude in nut body 1, nut body 1 is after screwing on the bolt, shell 2 covers down, strike downwards with instrument,, can progressively compress the slotted collar 3 that protrudes in nut body because groove 4 following partial cross sections are curved, until compressing into groove 5, when groove 5 and groove 4 were relative, snap ring was because of elastic reaction, and part body of clasp bullet again advances in the groove 4, slotted collar 3 is just blocked shell 2, so shell 2 can't take out, shell just covers nut body like this, has played antitheft effect.
Claims (5)
1, a kind of anti-theft nut is made up of nut body and the shell that covers on the body, and it is characterized in that: the circle groove is arranged on the nut body, and shell inner face and its opposite position also have the circle groove, and a slotted collar is arranged in the nut body groove.
2, anti-theft nut as claimed in claim 1 is characterized in that: this nut body top is hexagonal section, and the bottom is a circular cross-section, and groove is positioned at the outer ring, bottom.
3, anti-theft nut as claimed in claim 1 is characterized in that: the following partial cross section of shell inner face groove is curved.
4, anti-theft nut as claimed in claim 1 is characterized in that: body of clasp has part to protrude in nut body.
5, as claim 1 or 3 described anti-theft nuts, it is characterized in that: shell is cylindrical, and its upper-end surface is a ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01231049 CN2498396Y (en) | 2001-07-25 | 2001-07-25 | Anti-theft screw nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01231049 CN2498396Y (en) | 2001-07-25 | 2001-07-25 | Anti-theft screw nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2498396Y true CN2498396Y (en) | 2002-07-03 |
Family
ID=33645421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01231049 Expired - Fee Related CN2498396Y (en) | 2001-07-25 | 2001-07-25 | Anti-theft screw nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2498396Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005691A (en) * | 2019-04-11 | 2019-07-12 | 嘉兴新亚汽车零部件有限公司 | A kind of high anti-theft anti-theft nut |
-
2001
- 2001-07-25 CN CN 01231049 patent/CN2498396Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005691A (en) * | 2019-04-11 | 2019-07-12 | 嘉兴新亚汽车零部件有限公司 | A kind of high anti-theft anti-theft nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |