CN201963684U - Deformable plug screw - Google Patents
Deformable plug screw Download PDFInfo
- Publication number
- CN201963684U CN201963684U CN2011200481520U CN201120048152U CN201963684U CN 201963684 U CN201963684 U CN 201963684U CN 2011200481520 U CN2011200481520 U CN 2011200481520U CN 201120048152 U CN201120048152 U CN 201120048152U CN 201963684 U CN201963684 U CN 201963684U
- Authority
- CN
- China
- Prior art keywords
- plug screw
- nut
- screw
- model
- utility
- 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
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to a deformable plug screw, which comprises a nut and a threaded rod, wherein the lower end face of the nut downwards inclines relatively to the horizontal plane from the threaded rod, and the angle of inclination of the lower end face of the nut is 1-2 degrees. The deformable plug screw has a simple structure and high tightness.
Description
Technical field
The utility model relates to mechanical Component field, relates in particular to a kind of plug screw.
Background technique
Known, plug screw generally comprises nut and screw rod, be to utilize to be threaded to stop the part of fluid seepage, with the purge cock is example, purge cock is provided in usually in the drain tap of fuel tank and is used to stop engine oil leakage, in order to guarantee sealing, tend between the drain tap of plug screw and fuel tank, rubber seal ring is set, to play the effect of further sealing.But rubber seal ring is aging easily in actual use, causes engine oil leakage, needs often to change rubber seal ring, to guarantee the sealing of drain tap.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, but a kind of deformation plug screw of simple in structure, good airproof performance is provided.
The purpose of this utility model realizes by following technical solution:
But a kind of deformation plug screw comprises nut and screw rod, it is characterized in that: the relative horizontal plane in described nut lower end surface is downward-sloping from screw rod.
Further, the angle of inclination of described nut lower end surface is 1-2 °.
The utlity model has following beneficial effect:
Because the relative horizontal plane in nut lower end surface is downward-sloping from screw rod, so plug screw is in screwing process, for the burnishing surface that adapts to the screw periphery will produce micro-deformation, such deformation can make plug screw form the elastic force of opposing screw, both can improve the locking property of plug screw, can make again simultaneously between the burnishing surface of nut and screw periphery and form sealing configuration, improve the leakage proof of plug screw, and compare with existing rubber seal ring, the sealing architecture simply, can not wear out, need not to change, cost is low; The angle of inclination of nut lower end surface is set to 1-2 °, can guarantee the combining closely of burnishing surface of nut and drain tap periphery, can guarantee the micro-deformation of nut simultaneously again.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Embodiment
With reference to shown in Figure 1, but a kind of deformation plug screw comprises nut 1 and screw rod 2, and wherein, the lower end surface of nut 1 is that relative horizontal plane is from the downward-sloping 2 ° plane of inclination of screw rod.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (2)
1. but a deformation plug screw comprises nut and screw rod, it is characterized in that: the relative horizontal plane in described nut lower end surface is downward-sloping from screw rod.
2. but a kind of deformation plug screw according to claim 1 is characterized in that: the angle of inclination of described nut lower end surface is 1-2 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200481520U CN201963684U (en) | 2011-02-23 | 2011-02-23 | Deformable plug screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200481520U CN201963684U (en) | 2011-02-23 | 2011-02-23 | Deformable plug screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963684U true CN201963684U (en) | 2011-09-07 |
Family
ID=44526219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200481520U Expired - Fee Related CN201963684U (en) | 2011-02-23 | 2011-02-23 | Deformable plug screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963684U (en) |
-
2011
- 2011-02-23 CN CN2011200481520U patent/CN201963684U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201963684U (en) | Deformable plug screw | |
| CN204372220U (en) | Thread bush collar nut guide-localization top-loading ball valve | |
| CN204164412U (en) | Dual-soft seal ball valve | |
| CN204025668U (en) | For the slim adsorption type seal ring without the sealing of groove flange face | |
| CN201963867U (en) | Drain plug | |
| CN203323961U (en) | Oil-gas-water isolator | |
| CN202580101U (en) | Self-sealing spherical surface valve | |
| CN202629113U (en) | Rubber valve seat of butterfly valve | |
| CN201621044U (en) | Valve component of compressor | |
| CN201982652U (en) | Flange gasket | |
| CN203258100U (en) | Mounted-type ball valve capable of being dismounted and mounted on line and achieving two-way sealing | |
| CN203500492U (en) | Self-centering valve flap seal protection check valve | |
| CN204476342U (en) | A kind of shaft collar of gas storage well | |
| CN203463737U (en) | High-pressure composite sealed air valve | |
| CN203214899U (en) | Sealable bottom valve | |
| CN203420876U (en) | Oil pump inlet valve | |
| CN204061928U (en) | A kind of single-seat adjusting valve sealing configuration | |
| CN203963239U (en) | A kind of negative pressure valve | |
| CN202812194U (en) | Plug of dual-seal structure | |
| CN203628248U (en) | Drain valve with novel sealing device | |
| CN202628013U (en) | Multifunctional pumping unit wellhead polished rod sealing device | |
| CN202144880U (en) | Floating ball valve | |
| CN204784949U (en) | Be applied to gland of gate valve | |
| CN202195101U (en) | Novel ball valve | |
| CN204628518U (en) | A kind of case of transmission oilhole blockage structure |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20170223 |