CN203161777U - Anti-loose safe grounding screw - Google Patents
Anti-loose safe grounding screw Download PDFInfo
- Publication number
- CN203161777U CN203161777U CN 201320149046 CN201320149046U CN203161777U CN 203161777 U CN203161777 U CN 203161777U CN 201320149046 CN201320149046 CN 201320149046 CN 201320149046 U CN201320149046 U CN 201320149046U CN 203161777 U CN203161777 U CN 203161777U
- Authority
- CN
- China
- Prior art keywords
- screw
- external tooth
- packing ring
- cross recess
- locking
- 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
Links
Images
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a screw, in particular to a grounding screw, especially an anti-loose safe grounding screw. The anti-loose safe grounding screw comprises a screw body which comprises a screw head and a stud, and an outer-tooth gasket used for locking and loose prevention is sleeved on the stud. The anti-loose safe grounding screw has the advantages of being good in anti-loose effect and reliable in grounding.
Description
Technical field
The utility model relates to screw, is specifically related to a kind of earthing screw, particularly a kind of locking safety grounding screw.
Background technique
Earthing screw is a kind of for the earthy screw of electrical equipment, traditional earthing screw is plain screw, and for preventing that becoming flexible from use appearring in earthing screw, conventional way is sheathed plain washer or open washer on screw, arrange down like this, though when ratio did not use packing ring, anti-loosing effect was better, but still exists the locking of screw unreliable, easy loosening situation, cause the ground connection weak effect, the big equipment of vibrations during particularly for a few thing, problem is even more serious.
Summary of the invention
At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of reliable lock, the reliable locking safety grounding screw of grounding safety.
For achieving the above object, the utility model provides following technological scheme: a kind of locking safety grounding screw, include screw body, described screw body comprises screw head and double-screw bolt, it is characterized in that: be arranged with on the described double-screw bolt for the locking external tooth packing ring of locking.
By adopting technique scheme, on the employing screw external tooth packing ring is set and reaches the locking anti-loosing effect, behind the screw-driving, long-time difficult drop-off, grounding safety is reliable.
The utility model further is set to: the sawtooth on the described external tooth packing ring outward edge becomes relative external tooth packing ring plane, top to reverse 16 ~ 28 ° clockwise.
By adopting technique scheme, make that the external tooth washer locking is more reliable.
The utility model further is set to: thread depth is greater than external tooth packing ring diameter of bore on the double-screw bolt of described screw.
By adopting technique scheme, the external tooth gasket sleeve is located on the screw and can come off, and prevents in the assembly process, and external tooth packing ring accident is lost, and is more convenient to operate.
The utility model further is set to: the screw head of described screw and external tooth packing ring conflict end face are planar end surface.
By adopting technique scheme, when screwing, screw head and external tooth packing ring compress stressed even.
The utility model further is set to: the screw head operative end face of described screw is provided with cross recess; The described cross recess degree of depth is 1.9 ~ 2.4mm.
By adopting technique scheme, the cross recess setting, unscrew tighten more convenient to operate.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the locking safety grounding bolt structure schematic representation of the utility model specific embodiment;
Fig. 2 is the external tooth gasket construction schematic representation of the utility model specific embodiment;
Fig. 3 is the screw body structural representation of the utility model specific embodiment.
Embodiment
Referring to accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, the disclosed a kind of locking safety grounding screw of the utility model includes screw body 1, and described screw body 1 comprises screw head 11 and double-screw bolt 12, screw head 11 1 ends of described screw body 1 are connected with double-screw bolt 12, and the other end is operative end face; The operative end face of screw head 11 is provided with cross recess 13, and cross recess 13 degree of depth are 1.9 ~ 2.4mm.Be arranged with on the described double-screw bolt 12 for the locking external tooth packing ring 2 of locking, be distributed with sawtooth 21 on the excircle of external tooth packing ring 2; Relative external tooth packing ring 2 planes, 21 one-tenth tops of sawtooth on external tooth packing ring 2 outward edges are reversed 16 ~ 28 ° clockwise.
For easy to operate, prevent that external tooth packing ring 2 from coming off, thread depth is greater than external tooth packing ring 2 diameter of bores on the double-screw bolt 12 of described screw body 1.External tooth packing ring 2 is limited on the double-screw bolt 11 like this, prevent from depositing at ordinary times or the assembly and disassembly process in external tooth packing ring 2 occurs and unexpected situation about losing occurs.
For after the time assembling, external tooth packing ring 2 compresses reliably, and screw head 11 and the external tooth packing ring 2 conflict end faces of described screw body 1 are planar end surface.When screwing, screw head 11 compresses stressed even with external tooth packing ring 2 like this.
Claims (9)
1. a locking safety grounding screw includes screw body, and described screw body comprises screw head and double-screw bolt, it is characterized in that: be arranged with on the described double-screw bolt for the locking external tooth packing ring of locking.
2. locking safety grounding screw according to claim 1, it is characterized in that: the sawtooth on the described external tooth packing ring outward edge becomes relative external tooth packing ring plane, top to reverse 16 ~ 28 ° clockwise.
3. locking safety grounding screw according to claim 1 and 2, it is characterized in that: thread depth is greater than external tooth packing ring diameter of bore on the double-screw bolt of described screw.
4. locking safety grounding screw according to claim 1 and 2, it is characterized in that: the screw head of described screw and external tooth packing ring conflict end face are planar end surface.
5. locking safety grounding screw according to claim 3, it is characterized in that: the screw head of described screw and external tooth packing ring conflict end face are planar end surface.
6. locking safety grounding screw according to claim 1 and 2, it is characterized in that: the screw head operative end face of described screw is provided with cross recess, and the described cross recess degree of depth is 1.9 ~ 2.4mm.
7. locking safety grounding screw according to claim 3, it is characterized in that: the screw head operative end face of described screw is provided with cross recess, and the described cross recess degree of depth is 1.9 ~ 2.4mm.
8. locking safety grounding screw according to claim 4, it is characterized in that: the screw head operative end face of described screw is provided with cross recess, and the described cross recess degree of depth is 1.9 ~ 2.4mm.
9. locking safety grounding screw according to claim 5, it is characterized in that: the screw head operative end face of described screw is provided with cross recess, and the described cross recess degree of depth is 1.9 ~ 2.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320149046 CN203161777U (en) | 2013-03-28 | 2013-03-28 | Anti-loose safe grounding screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320149046 CN203161777U (en) | 2013-03-28 | 2013-03-28 | Anti-loose safe grounding screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161777U true CN203161777U (en) | 2013-08-28 |
Family
ID=49022963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320149046 Expired - Fee Related CN203161777U (en) | 2013-03-28 | 2013-03-28 | Anti-loose safe grounding screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996410A (en) * | 2017-05-16 | 2017-08-01 | 芜湖欧宝机电有限公司 | A kind of full coat dress compressor ground structure and earthing method |
| CN109973508A (en) * | 2019-05-07 | 2019-07-05 | 嘉兴联心汽车零部件有限公司 | A kind of punch forming tooth pad that locking anti-loosing effect is good |
-
2013
- 2013-03-28 CN CN 201320149046 patent/CN203161777U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996410A (en) * | 2017-05-16 | 2017-08-01 | 芜湖欧宝机电有限公司 | A kind of full coat dress compressor ground structure and earthing method |
| CN106996410B (en) * | 2017-05-16 | 2023-02-21 | 芜湖欧宝机电有限公司 | Grounding structure and grounding method of full-coating compressor |
| CN109973508A (en) * | 2019-05-07 | 2019-07-05 | 嘉兴联心汽车零部件有限公司 | A kind of punch forming tooth pad that locking anti-loosing effect is good |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108980179B (en) | Anti-loosening screw | |
| CN102400993A (en) | Anti-loosening bolt for T-shaped nail | |
| NZ611853A (en) | A nut assembly | |
| CN204828244U (en) | Locknut | |
| CN203161777U (en) | Anti-loose safe grounding screw | |
| CN107588084A (en) | A kind of anti-loosening bolt assembly easily assembled | |
| CN105041830A (en) | Locknut | |
| CN202560772U (en) | Locking nut | |
| CN202348926U (en) | Gasket | |
| CN201973052U (en) | Fastening screw bolt | |
| CN204985273U (en) | Prevent nut that becomes flexible | |
| CN205298214U (en) | Self -locking screw nut | |
| CN203488524U (en) | Nut | |
| CN204646944U (en) | Hexagonal cone pad 3 locking riveting nuts | |
| CN204253548U (en) | A kind of bolt of quick connection | |
| CN210218371U (en) | Combined lock nut | |
| CN210637353U (en) | Bolt vibration-proof connecting structure | |
| CN202597415U (en) | Antiskid locking bolt | |
| CN106246696A (en) | Self-locking nut structure | |
| CN105987065A (en) | Antitheft bolt | |
| CN201973064U (en) | Bolt | |
| CN202007818U (en) | High-strength anti-loosening screw set | |
| CN203335595U (en) | Furniture connecting nut anti-looseness structure | |
| CN205190504U (en) | New -type spring washer structure | |
| CN204591958U (en) | A kind of anti-theft bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |