CN203730861U - Rotation release prevention pressure regulating unloading valve - Google Patents
Rotation release prevention pressure regulating unloading valve Download PDFInfo
- Publication number
- CN203730861U CN203730861U CN201420069619.3U CN201420069619U CN203730861U CN 203730861 U CN203730861 U CN 203730861U CN 201420069619 U CN201420069619 U CN 201420069619U CN 203730861 U CN203730861 U CN 203730861U
- Authority
- CN
- China
- Prior art keywords
- pressure regulation
- pressure regulating
- pressure
- cap
- fixed base
- 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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- Preventing Unauthorised Actuation Of Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a rotation release prevention pressure regulating unloading valve which comprises a pressure regulating spring, a pressure regulating fixed seat and a pressure regulating cap which are sequentially arranged from inside to outside. A valve rod is arranged on one side of the pressure regulating spring, the pressure regulating fixed seat is provided with an external thread, the bottom of a threaded end of the pressure regulating fixed seat is provided with an external circle smaller than the bottom diameter of the external thread, the root of the external circle is provided with a cone frustum, the pressure regulating cap is provided with an internal thread, one end of the pressure regulating cap is provided with a retainer ring groove, the front end of the retainer ring groove is provided with a flared internal conical surface, a hole is formed outside the retainer ring groove, and a steel wire retainer ring is arranged in the retainer ring groove. The pressure regulating cap can be effectively prevented from falling off the pressure regulating fixed seat when excessively unscrewed.
Description
Technical field
The utility model relates to a kind of anti-de-pressure-adjustable unloading valves that revolves.
Background technique
Unloading valve is under certain condition, can make the valve of oil hydraulic pump off-load.Common unloading valve all needs to turn down zero-bit pressure, and specific operation are rotation pressure regulation cap, in rotation pressure regulation cap, will excessively unscrew because of carelessness, excessively unscrew and can cause pressure regulation cap to come off from pressure regulation fixed base, cause damage device, affect manufacturing efficiency.
Summary of the invention
The utility model is not enough for prior art, provides a kind of and prevents revolving de-pressure-adjustable unloading valves, and it can effectively prevent from when pressure regulation cap from excessively unscrewing coming off from pressure regulation fixed base.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of anti-de-pressure-adjustable unloading valves that revolves, comprise the pressure adjusting spring arranging from inside to outside successively, pressure regulation fixed base and pressure regulation cap, in described pressure adjusting spring one side, be provided with valve rod, on described pressure regulation fixed base, there is outside thread, described pressure regulation fixed base threaded end bottom be provided be less than outside thread at the bottom of the cylindrical in footpath, at described cylindrical root, be provided with round platform, on described pressure regulation cap, there is internal thread, in described pressure regulation cap one end, be provided with circlip groove, at described circlip groove front end, be provided with bell-mouthed inner conical surface, outer installment at described circlip groove is porose, in described circlip groove, be provided with Steel Cable Baffle Ring.Pressure regulation cap and pressure regulation fixed base carry out pressure setting operation by screw thread, in the cylindrical under pressure regulation fixed base outside thread after Steel Cable Baffle Ring assembling, outside thread while unscrewing pressure regulation cap on pressure regulation fixed base will limit Steel Cable Baffle Ring and outwards move, and reaches and prevents that pressure regulation cap from excessively unscrewing and coming off.
In technique scheme, at described pressure regulation cap, be also provided with handle outward, and be provided with handle cover on described handle.Handle facilitates the rotation of pressure regulation cap, and handle cover can be used to prevent that liquid from entering in valve, reaches the effect that makes pressure adjusting spring be difficult for being corroded.
In technique scheme, in the end of described pressure regulation cap, be provided with internal thread, in internal thread, be mounted with Cock screw, on described Cock screw, be rotary with locking nut.After screwing between pressure regulation cap and pressure regulation fixed base and putting in place, by turn Cock screw, pressure is adjusted to required force value, and by locking nut and be tightened to position, so just reaches the function of set pressure and restriction pressure.
In technique scheme, on described valve rod, be provided with O shape circle and back-up ring.Can prevent the normal use of liquid valve rod.
The utility model compared with prior art, has following beneficial effect: the utility model can effectively prevent from when pressure regulation cap from excessively unscrewing coming off from pressure regulation fixed base.Handle facilitates the rotation of pressure regulation cap, and handle cover can be used to prevent that liquid from entering in valve, reaches the effect that makes pressure adjusting spring be difficult for being corroded.After screwing between pressure regulation cap and pressure regulation fixed base and putting in place, by turn Cock screw, pressure is adjusted to required force value, and by locking nut and be tightened to position, so just reaches the function of set pressure and restriction pressure.O shape circle and back-up ring can prevent the normal use of liquid valve rod.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
Fig. 2 is the utility model pressure regulation fixed base schematic diagram.
Fig. 3 is the utility model pressure regulation cap schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail: referring to Fig. 1-Fig. 3, a kind of anti-de-pressure-adjustable unloading valves that revolves, comprise valve seat 17, valve 18, pressure transmission chamber 19, also comprise the pressure adjusting spring 1, pressure regulation fixed base 2 and the pressure regulation cap 3 that arrange from inside to outside successively, in described pressure adjusting spring 1 one sides, be provided with valve rod 4, on valve rod 4, be provided with O shape circle 15 and back-up ring 16, can prevent the normal use of liquid valve rod 4.
On described pressure regulation fixed base 2, there is outside thread, described pressure regulation fixed base 2 threaded end bottoms be provided be less than outside thread at the bottom of the cylindrical 5 in footpath, at described cylindrical 5 roots, be provided with round platform 6, round platform 6 diameters are less than cylindrical 5 diameters, on described pressure regulation cap 3, there is internal thread, in described pressure regulation cap 3 one end, be provided with circlip groove 7, at described circlip groove 7 front ends, be provided with bell-mouthed inner conical surface 8, porose 9 in the outer installment of described circlip groove 7, in described circlip groove 7, be provided with Steel Cable Baffle Ring 10.
Pressure regulation cap 3 and pressure regulation fixed base 2 carry out pressure setting operation by screw thread, in the cylindrical 5 under pressure regulation fixed base 2 outside threads after Steel Cable Baffle Ring 10 assemblings, outside thread while unscrewing pressure regulation cap 3 on pressure regulation fixed base 2 will limit Steel Cable Baffle Ring 10 and outwards move, and reaches and prevents that pressure regulation cap 3 from excessively unscrewing and coming off.
Outside described pressure regulation cap 3, be also provided with handle 11, and be provided with handle cover 12 on described handle 11.Handle 11 facilitates the rotation of pressure regulation cap 3, and handle cover 12 can be used to prevent that liquid from entering in valve, reaches the effect that makes pressure adjusting spring 1 be difficult for being corroded.
End at described pressure regulation cap 3 is provided with internal thread, is mounted with Cock screw 13 in internal thread, on described Cock screw 13, is rotary with locking nut 14.After screwing between pressure regulation cap 3 and pressure regulation fixed base 2 and putting in place, by turn Cock screw 13, pressure is adjusted to required force value, and by locking nut 14 and be tightened to position, so just reaches the function of set pressure and restriction pressure.
The utility model structural feature is as follows: be convenient to assembling: Steel Cable Baffle Ring 10 is inserted on the round platform 6 of pressure regulation fixed base 2, pressure regulation cap 3 is spun on pressure regulation fixed base 2, and be screwed into and encounter Steel Cable Baffle Ring 10, Steel Cable Baffle Ring 10 is entered in bell-mouthed inner conical surface 8, again screw pressure regulation cap 3, round platform 6 just pushes Steel Cable Baffle Ring 10 in pressure regulation cap 3 circlip grooves 7 along bell-mouthed inner conical surface 8.
Prevent from revolving de-: in the cylindrical 5 under pressure regulation fixed base 2 outside threads after Steel Cable Baffle Ring 10 assemblings, the outside thread while unscrewing pressure regulation cap 3 on pressure regulation fixed base 2 will limit Steel Cable Baffle Ring 10 and outwards move, and reaches and prevents that pressure regulation cap 3 from excessively unscrewing and coming off.
Be convenient to dismounting: there are several holes 9 outside in pressure regulation cap 3 circlip groove 7 positions, is for promoting Steel Cable Baffle Ring 10 to dwindle, to dismantle use.
During pressure regulation, first by turn handle 11, pressure regulation cap 3 is threaded to pressure regulation fixed base 2 planes and is developed, secondly by screwing Cock screw 13, pressure is transferred to required force value, last and tight locking nut 14, and cover handle cover 12.
During off-load, pulsating pressure lifts valve rod 4 band movable valves 18 fast by pressure transmission chamber 19, makes it to depart from valve seat 17, reaches the connection off-load object of hyperbaric chamber and low-pressure cavity.
Claims (4)
1. prevent revolving de-pressure-adjustable unloading valves for one kind, comprise the pressure adjusting spring (1) arranging from inside to outside successively, pressure regulation fixed base (2) and pressure regulation cap (3), in described pressure adjusting spring (1) one side, be provided with valve rod (4), it is characterized in that: on described pressure regulation fixed base (2), there is outside thread, bottom described pressure regulation fixed base (2) threaded end, be provided with the cylindrical (5) in footpath at the bottom of being less than outside thread, at described cylindrical (5) root, be provided with round platform (6), on described pressure regulation cap (3), there is internal thread, in described pressure regulation cap (3) one end, be provided with circlip groove (7), at described circlip groove (7) front end, be provided with bell-mouthed inner conical surface (8), outer installment porose (9) at described circlip groove (7), in described circlip groove (7), be provided with Steel Cable Baffle Ring (10).
2. as claimed in claim 1ly a kind ofly anti-revolve de-pressure-adjustable unloading valves, it is characterized in that: outside described pressure regulation cap (3), be also provided with handle (11), and be provided with handle cover (12) on described handle (11).
3. a kind of anti-de-pressure-adjustable unloading valves that revolves as claimed in claim 1 or 2, it is characterized in that: the end at described pressure regulation cap (3) is provided with internal thread, in internal thread, be mounted with Cock screw (13), on described Cock screw (13), be rotary with locking nut (14).
4. as claimed in claim 1ly a kind ofly anti-revolve de-pressure-adjustable unloading valves, it is characterized in that: on described valve rod (4), be provided with O shape circle (15) and back-up ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069619.3U CN203730861U (en) | 2014-02-18 | 2014-02-18 | Rotation release prevention pressure regulating unloading valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069619.3U CN203730861U (en) | 2014-02-18 | 2014-02-18 | Rotation release prevention pressure regulating unloading valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730861U true CN203730861U (en) | 2014-07-23 |
Family
ID=51200936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420069619.3U Expired - Fee Related CN203730861U (en) | 2014-02-18 | 2014-02-18 | Rotation release prevention pressure regulating unloading valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730861U (en) |
-
2014
- 2014-02-18 CN CN201420069619.3U patent/CN203730861U/en not_active Expired - Fee Related
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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: 20140723 Termination date: 20170218 |