CN102619855A - Tapping back-off locking nut - Google Patents
Tapping back-off locking nut Download PDFInfo
- Publication number
- CN102619855A CN102619855A CN201210100272XA CN201210100272A CN102619855A CN 102619855 A CN102619855 A CN 102619855A CN 201210100272X A CN201210100272X A CN 201210100272XA CN 201210100272 A CN201210100272 A CN 201210100272A CN 102619855 A CN102619855 A CN 102619855A
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- China
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- nut
- tapping back
- self tapping
- teeth
- tapping
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Abstract
The invention relates to a tapping back-off locking nut which comprises a nut stud body, wherein a thread hole and an inner hexagon driving head at one end of the thread hole are arranged inside the nut stud body; tapping back-off teeth with taper are arranged on the nut stud body; at least one chute is formed in the tapping back-off teeth; and at least one wedged protrusion is arranged at the other end of the nut stud body, which is away from the inner hexagon driving head. Due to the adoption of the tapping back-off teeth, the convolution and the loosening of the nut can be prevented; materials generated by tapping enter the chute in the tapping back-off teeth, so that the convolution of the nut can be prevented; in addition, the nut is combined with a mounting hole more closely; the wedged protrusion can enter the mounting hole more conveniently and is better attached to the bottom of the mounting hole, and thus the sliding and loosening are prevented; nuts with threads in different specifications can be conveniently arranged according to the requirement; the convenience in operation and simpleness in process are realized; and a heating and embedding method is avoided, so that the phenomena that a plastic member is warped caused by heating and the crack occurs due to over great internal stress are reduced.
Description
Technical field
The present invention relates to a kind of nut, especially relate to a kind of self tapping back-off lock nut.
Background technique
At present, the nut of existing fixed on sheet material generally adopts riveted way, and the nut after the riveted joint can rotate on sheet material; Be unfavorable for construction bolt on nut, the mode that the employing that also has is threaded is tightened on nut on the sheet material, when vibration takes place; Nut is loosening easily, when installing, must attack screw thread earlier, through the use that matches with tapped hole on the sheet material of the outside screw thread of nut; Increase operation, reduced working efficiency; Also have the mode through the inserts nut to be installed on the plastic sheet, a kind of is directly to be injected in the sheet material, just can not change the size of embedded piece screw thread after this mode embeds, and has reduced the flexibility of assembling; A kind of is with being embedded into after the product by heating in the working of plastics, and its technology of this mode is complicated, inconvenient operator's operation; The shape of inserts, position and quantity are inequality sometimes, in injection moulding process, are difficult to realize automation; The shrinkage of metal insert is much smaller than plastic materials on every side, and after accomplishing installation, warpage takes place working of plastics easily, and ftractures in the excessive part that can cause of its internal stress; Metal insert generally adopts customization, and its fabricating cost increases accordingly.
Summary of the invention
Technical problem to be solved by this invention provide a kind of can the self tapping back-off and prevent the nut that becomes flexible, it can be installed when needs use, and very strong flexibility is arranged, the method that need not adopt heating to embed prevents the distortion of plastic materials.
The present invention solves the technological scheme that its technical problem takes: a kind of self tapping back-off lock nut; Comprise the Nut column body; The inside of Nut column body is provided with the interior hexagonal driving head of tapped hole and tapped hole one end, and described Nut column body is provided with the self tapping back-off tooth that has tapering.
Clamp-on skewed slot for the material that in tapping, is produced and produce and to prevent the effect of rotating, and combine closelyr with mounting hole, further described self tapping back-off tooth is provided with skewed slot and at least one; Further described skewed slot is three.
In order to prevent that nut from rotating in sheet material, and reach locking effect, described Nut column body away from the other end of interior hexagonal driving head be provided with wedge shape protruding and at least one; Further, described wedge shape convexity is four.
The invention has the beneficial effects as follows: adopted after the said structure, because the self tapping back-off tooth that adopts, can prevent that nut from circling round to prevent to become flexible; The material that is produced during tapping is clamp-oned the skewed slot on the self tapping back-off tooth; Can prevent the rotation of nut, and combine closelyr with mounting hole, adopt the wedge shape convexity can get into mounting hole very easily; Better be adjacent to the bottom of mounting hole, anti-skidding locking; Can be as required, the convenient nut that the different size screw thread is installed, and easy to operate, technology is simple; Do not adopt the heating embedding grammar, reduced the phenomenon of the excessive generation cracking of the working of plastics warpage brought because of heating and internal stress.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the left TV structure schematic representation of Fig. 1;
Fig. 3 is the right TV structure schematic representation of Fig. 1;
Fig. 4 is the sectional view on the A-A direction among Fig. 3.
Among the figure: 1, interior hexagonal driving head; 2, self tapping back-off tooth; 3, Nut column body; 4, tapped hole; 5, skewed slot; 6, wedge shape is protruding.
Embodiment
Like Fig. 1～a kind of self tapping back-off lock nut shown in Figure 4, comprise Nut column body 3, the inside of Nut column body 3 is provided with the interior hexagonal driving head 1 of tapped hole 4 and tapped hole 4 one ends, and described Nut column body 3 is provided with the self tapping back-off tooth 2 that has tapering; Described self tapping back-off tooth 2 is provided with three skewed slots 5; Described Nut column body 3 is provided with four wedge shapes protruding 6 away from the other end of interior hexagonal driving head 1.
This kind nut is installed when needs use, is installed on the plastic board hexagonal driving head 1 in driving through electric tool usually; Nut rotates, and self tapping back-off tooth 2 is through in the mounting hole on the self tapping precession plastic board, and the chip that self tapping produces embeds in the skewed slot 5 on the self tapping back-off tooth 2; Can reach the effect of locking anti-rotation; Be screwed into, wedge shape protruding 6 better is adjacent to the bottom of mounting hole mutually, can prevent the rotation of nut at the end; The diameter of mounting hole is more smaller than the diameter of nut.
It is emphasized that: above only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction; Every foundation technical spirit of the present invention all still belongs in the scope of technological scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. self tapping back-off lock nut; Comprise Nut column body (3); The inside of Nut column body (3) is provided with the interior hexagonal driving head (1) of tapped hole (4) and tapped hole (4) one ends, it is characterized in that: described Nut column body (3) is provided with the self tapping back-off tooth (2) that has tapering.
2. self tapping back-off lock nut according to claim 1 is characterized in that: described self tapping back-off tooth (2) is provided with skewed slot (5) and at least one.
3. self tapping back-off lock nut according to claim 2 is characterized in that: described skewed slot (5) is three.
4. according to claim 1 or 2 or 3 described self tapping back-off lock nuts, it is characterized in that: described Nut column body (3) is provided with wedge shape convexity (6) and at least one away from the other end of interior hexagonal driving head (1).
5. self tapping back-off lock nut according to claim 4 is characterized in that: described wedge shape protruding (6) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210100272XA CN102619855A (en) | 2012-04-06 | 2012-04-06 | Tapping back-off locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210100272XA CN102619855A (en) | 2012-04-06 | 2012-04-06 | Tapping back-off locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102619855A true CN102619855A (en) | 2012-08-01 |
Family
ID=46559988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210100272XA Pending CN102619855A (en) | 2012-04-06 | 2012-04-06 | Tapping back-off locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102619855A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441935A (en) * | 2018-12-20 | 2019-03-08 | 海盐华通金属制品有限公司 | A kind of Integral ceiling stop nut |
| CN110067801A (en) * | 2019-04-26 | 2019-07-30 | 嘉兴海缙五金科技有限公司 | A kind of welding hexagonal flange nut of good leak tightness |
| CN111022463A (en) * | 2019-12-05 | 2020-04-17 | 嘉兴市奥科五金科技有限公司 | Embedded fixed expansion bolt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2036604A (en) * | 1935-02-16 | 1936-04-07 | George B Pickop | Bolt and nut |
| US4712955A (en) * | 1985-05-14 | 1987-12-15 | Rexnord Inc. | Expandable fastener assembly |
| CN1489674A (en) * | 2001-02-01 | 2004-04-14 | ͨ�ö�������ϵͳ��˾ | Self-tapping insert, insert assembly and method for mounting the insert |
| US20050191152A1 (en) * | 1999-07-12 | 2005-09-01 | Iwata Bolt Kabushiki Kaisha | Bolt & Nut |
| CN202510522U (en) * | 2012-04-06 | 2012-10-31 | 苏州工业园区新凯精密五金有限公司 | Self-tapping backoff locknut |
-
2012
- 2012-04-06 CN CN201210100272XA patent/CN102619855A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2036604A (en) * | 1935-02-16 | 1936-04-07 | George B Pickop | Bolt and nut |
| US4712955A (en) * | 1985-05-14 | 1987-12-15 | Rexnord Inc. | Expandable fastener assembly |
| US20050191152A1 (en) * | 1999-07-12 | 2005-09-01 | Iwata Bolt Kabushiki Kaisha | Bolt & Nut |
| CN1489674A (en) * | 2001-02-01 | 2004-04-14 | ͨ�ö�������ϵͳ��˾ | Self-tapping insert, insert assembly and method for mounting the insert |
| CN202510522U (en) * | 2012-04-06 | 2012-10-31 | 苏州工业园区新凯精密五金有限公司 | Self-tapping backoff locknut |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441935A (en) * | 2018-12-20 | 2019-03-08 | 海盐华通金属制品有限公司 | A kind of Integral ceiling stop nut |
| CN110067801A (en) * | 2019-04-26 | 2019-07-30 | 嘉兴海缙五金科技有限公司 | A kind of welding hexagonal flange nut of good leak tightness |
| CN111022463A (en) * | 2019-12-05 | 2020-04-17 | 嘉兴市奥科五金科技有限公司 | Embedded fixed expansion bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120801 |