CN204372248U - A kind of straight-through type back pressure relief valve - Google Patents
A kind of straight-through type back pressure relief valve Download PDFInfo
- Publication number
- CN204372248U CN204372248U CN201520003361.1U CN201520003361U CN204372248U CN 204372248 U CN204372248 U CN 204372248U CN 201520003361 U CN201520003361 U CN 201520003361U CN 204372248 U CN204372248 U CN 204372248U
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- China
- Prior art keywords
- valve
- spool
- valve body
- back pressure
- straight
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Abstract
The utility model discloses a kind of straight-through type back pressure relief valve, comprising: valve body and spool, is characterized in that: described spool is slidably socketed in valve body; Described spool is located at the water inlet of valve body, in described valve body, be also provided with valve gap and spring; Described spring is located between valve gap and spool; Described valve gap is located at the water outlet of valve body, and valve gap and spool are equipped with water passage hole, and the water passage hole on valve gap and spool is mutually through; Described spool is also provided with O RunddichtringO, and this O RunddichtringO is corresponding with the water inlet position of valve body.The utility model adopts with water passage hole as adjust force, adjust the pressure of spring thus adjust back pressure valve pilot pressure, and utilize external screw thread in two to lead directly to the structural type of connection, simplify adjustment and the assembling of back pressure valve, simplify the internal structure of back pressure valve simultaneously, optimize production process, reduce cost of production.The utility model has combination back pressure valve and safety valve function simultaneously.
Description
Technical field
The utility model relates to a kind of hydraulic pressure control gear, especially a kind of straight-through type back pressure relief valve.
Background technique
Usually in Water treatment pressure hydraulic piping, all can arrange safety valve, after pipeline hydraulic pressure exceedes the safety pressure value of setting, safety protection device can carry out pressure release in case pressure is excessive cause potential safety hazard.
At pipe outlet, in order to prevent the pressure instability that may be formed or siphonage, needing to arrange pressure required when back pressure valve keeps that pipeline is unidirectional to be opened and closed, making to pump water flow and stablize.Separately at delivery side of pump end because gravity or other effect often there will be backflow or siphonage, now back pressure valve can cut down the fluctuation of backflow due to siphon generation and pressure.
Conventional back pressure valve and Safety valve are made up of the open and close mechanism of valve body, valve gap, import and export, spring pressure controlling mechanism mostly, and its shape and structure is more complicated, and matching requirements are high, and assembly is various, are not easy to processing, and large safety valve can only use once mostly.
Model utility content
It is simple that the purpose of this utility model is to provide a kind of structure simultaneously with combination back pressure valve and safety valve function, and assembling easily, is convenient to again the straight-through type safety back pressure valve of processing.
Realize above-mentioned purpose, the technological scheme that the utility model adopts is: a kind of straight-through type safety back pressure valve, comprising: valve body and spool, is characterized in that: described spool is slidably socketed in valve body; Described spool is located at the water inlet of valve body, in described valve body, be also provided with valve gap and spring; Described spring is located between valve gap and spool; Described valve gap is located at the water outlet of valve body, and valve gap and spool are equipped with water passage hole, and the water passage hole on valve gap and spool is mutually through; Described spool is also provided with O RunddichtringO, and this O RunddichtringO is corresponding with the water inlet position of valve body.
Preferably, be connected with valve gap at described valve body by worm structure, the reach in valve body is corresponding with the pressure adjusting scope of back pressure valve.
Preferably, the water passage hole on described valve gap is hexagonal shape through hole, and the geomery of this water passage hole is corresponding with Allen key tool sizes.
Preferably, described spool is less than body cavity diameter relative to one end diameter of valve inleting water mouth, forms aqua region between spool and valve body.
Preferably, one end outlet of described spool water passage hole is located at spool top, and it axially overlaps with valve axis, and its position is corresponding with valve gap; The other end outlet of spool water passage hole was positioned at aqua region, and its position is corresponding with the water intake of valve body.
Preferably, described spring is socketed with spool and valve gap respectively and installs.
Preferably, described valve body is connected by worm structure with valve gap, and the reach in valve body is corresponding with the pressure adjusting scope of back pressure valve.
Preferably, the water intake external diameter of described valve body is provided with external screw thread.
After the utility model adopts said structure, by adopting with water passage hole as adjust force, adjust the pressure of spring thus the constant pressure in adjustment back pressure valve outlet port, and utilize external screw thread in two to lead directly to the structural type of connection, simplify adjustment and the assembling of back pressure valve, simplify the internal structure of back pressure valve simultaneously, optimize production process, reduce cost of production.When using as safety valve, can repeated multiple times use.The utility model has combination safety valve and back pressure valve function simultaneously, and structure is simple, and assembling easily, is convenient to processing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, valve body, 11, water intake, 12, water outlet, 2, spool, 3, valve gap, 4, spring, 5, water passage hole, 6, O RunddichtringO.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in the figure, for achieving the above object, the technological scheme that the utility model adopts is: a kind of straight-through type safety back pressure valve, comprising: valve body 1 and spool 2, is characterized in that: described spool 2 is slidably socketed in valve body 1; Described spool 2 is located at water intake 11 place of valve body 1, is also provided with valve gap 3 and spring 4 in described valve body 1; Described spring 4 is located between valve gap 3 and spool 2; Described valve gap 3 is located at water outlet 12 place of valve body 1, and valve gap 3 and spool 2 are equipped with water passage hole 5, and valve gap 3 is mutually through with the water passage hole 5 on spool 2; Described spool 2 is also provided with O RunddichtringO 6, and this O RunddichtringO 6 is corresponding with water intake 11 position of valve body 1.
Preferably, be connected with valve gap 3 at described valve body 1 by worm structure, the reach in valve body 1 is corresponding with the pressure adjusting scope of back pressure valve.
Preferably, the water passage hole 5 on described valve gap 3 is hexagonal shape through hole, and the geomery of this water passage hole 5 is corresponding with Allen key tool sizes.
Preferably, described spool 2 is less than valve body 1 intracavity diameter relative to one end diameter of valve body 1 water intake 11, forms aqua region between spool 2 and valve body 1.
Preferably, one end outlet of described spool 2 water passage hole 5 is located at spool 2 top, its axial and valve body 1 dead in line, and its position is corresponding with valve gap 3; The other end outlet of spool 2 water passage hole 5 was positioned at aqua region, and its position is corresponding with the water intake 11 of valve body 1.
Preferably, described spring 4 is socketed with spool 2 and valve gap 3 respectively and installs.
Preferably, described valve body 1 is connected by worm structure with valve gap 3, and the reach in valve body 1 is corresponding with the pressure adjusting scope of back pressure valve.
Preferably, water intake 11 external diameter of described valve body 1 is provided with external screw thread.
Embodiment 1:
Fig. 1 is straight-through type back pressure relief valve disclosed in the utility model, and it comprises valve body 1, and described valve body 1 offers water intake 11 and water outlet 12, and the outer tooth on described water intake 11 is connected with intake pipe, and the interior tooth on described water outlet 12 connects outlet conduit; Spool 2 and O RunddichtringO 6 form Sealing.User is by water passage hole 5 rotary valve cover 3 of hexagonal shape, and make it along the down displacement compression spring 4 of the internal screw thread on water outlet 12, compress the seal by spring 4, Sealing and water intake 11 are formed and seal.Described valve gap 3 is threaded connection with water outlet 12, and the valve gap 3 that turns clockwise is downward or be rotated counterclockwise upwards, then can compress further or pull-off spring, regulate the power of press seal part with this, thus regulates the pressure allowing water inlet.
Embodiment 2:
After on the pipeline that this straight-through type back pressure relief valve is arranged on hydraulic pressure instability, only when the pressure of intake pipe reaches pre-set value, hydraulic pressure backs down spool 2 and O RunddichtringO 6, intakes to be discharged by the water passage hole 5 on spool 2 and valve gap 3, and now pipeline is path; When hydraulic pressure does not reach pre-set value, water inlet fails to open Sealing and water intake 11 forms seal space, and now pipeline is open circuit; When there are unstable hydraulic pressure or negative pressure in water outlet 12 place, this straight-through type back pressure relief valve plays back pressure valve effect.
The above is preferred implementation of the present utility model; certainly the interest field of the utility model can not be limited with this; should be understood that; for those skilled in the art; the technical solution of the utility model is modified or equivalent replacement, do not depart from the protection domain of technical solutions of the utility model.
Claims (8)
1. a straight-through type back pressure relief valve, comprising: valve body (1) and spool (2), is characterized in that: described spool (2) is slidably socketed in valve body (1); Described spool (2) is located at water intake (11) place of valve body (1), is also provided with valve gap (3) and spring (4) in described valve body (1), and described spring (4) is located between valve gap (3) and spool (2); Described valve gap (3) is located at water outlet (12) place of valve body (1), and valve gap (3) and spool (2) are equipped with water passage hole (5), and valve gap (3) is mutually through with the water passage hole (5) on spool (2); Described spool (2) is also provided with O RunddichtringO (6), and this O RunddichtringO (6) is corresponding with water intake (11) position of valve body (1).
2. straight-through type back pressure relief valve according to claim 1, is characterized in that: be connected by worm structure with valve gap (3) at described valve body (1), the reach in valve body (1) is corresponding with the pressure adjusting scope of back pressure valve.
3. straight-through type back pressure relief valve according to claim 1, is characterized in that: the water passage hole (5) on described valve gap (3) is hexagonal shape through hole, and the geomery of this water passage hole (5) is corresponding with Allen key tool sizes.
4. straight-through type safety back pressure valve according to claim 1, it is characterized in that: described spool (2) is less than valve body (1) intracavity diameter relative to one end diameter of valve body (1) water intake (11), forms aqua region between spool (2) and valve body (1).
5. straight-through type back pressure relief valve according to claim 4, is characterized in that: one end outlet of described spool (2) water passage hole (5) is located at spool (2) top, its axial and valve body (1) dead in line, and its position is corresponding with valve gap (3); The other end outlet of spool (2) water passage hole (5) was positioned at aqua region, and its position is corresponding with the water intake (11) of valve body (1).
6. straight-through type back pressure relief valve according to claim 1, is characterized in that: described spring (4) is socketed with spool (2) and valve gap (3) respectively and installs.
7. straight-through type back pressure relief valve according to claim 1, is characterized in that: described valve body (1) is connected by worm structure with valve gap (3), and the reach in valve body (1) is corresponding with the pressure adjusting scope of back pressure valve.
8. straight-through type back pressure relief valve according to claim 1, is characterized in that: on water intake (11) external diameter of described valve body (1), be provided with external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520003361.1U CN204372248U (en) | 2015-01-05 | 2015-01-05 | A kind of straight-through type back pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520003361.1U CN204372248U (en) | 2015-01-05 | 2015-01-05 | A kind of straight-through type back pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372248U true CN204372248U (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520003361.1U Expired - Fee Related CN204372248U (en) | 2015-01-05 | 2015-01-05 | A kind of straight-through type back pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372248U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730505A (en) * | 2016-04-18 | 2016-07-06 | 金龙联合汽车工业（苏州）有限公司 | Hydraulic two-way check valve for steering system of new-energy bus |
| CN106439128A (en) * | 2016-12-13 | 2017-02-22 | 俞杨许 | Stainless steel valve |
| CN108679276A (en) * | 2016-12-05 | 2018-10-19 | 陈博思 | A kind of pneumatic control valve |
| CN109930545A (en) * | 2019-03-20 | 2019-06-25 | 江苏中泽汽车科技有限公司 | A kind of liquid melt snow scattering vehicle with drip-proof shower nozzle |
| CN112780813A (en) * | 2019-11-01 | 2021-05-11 | 约克广州空调冷冻设备有限公司 | Safety valve and flow guide cover |
| CN113775795A (en) * | 2021-09-08 | 2021-12-10 | 无锡理奇智能装备有限公司 | One-way back pressure valve |
-
2015
- 2015-01-05 CN CN201520003361.1U patent/CN204372248U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730505A (en) * | 2016-04-18 | 2016-07-06 | 金龙联合汽车工业（苏州）有限公司 | Hydraulic two-way check valve for steering system of new-energy bus |
| CN108679276A (en) * | 2016-12-05 | 2018-10-19 | 陈博思 | A kind of pneumatic control valve |
| CN108679276B (en) * | 2016-12-05 | 2019-07-09 | 陈博思 | A kind of pneumatic control valve |
| CN106439128A (en) * | 2016-12-13 | 2017-02-22 | 俞杨许 | Stainless steel valve |
| CN109930545A (en) * | 2019-03-20 | 2019-06-25 | 江苏中泽汽车科技有限公司 | A kind of liquid melt snow scattering vehicle with drip-proof shower nozzle |
| CN112780813A (en) * | 2019-11-01 | 2021-05-11 | 约克广州空调冷冻设备有限公司 | Safety valve and flow guide cover |
| CN113775795A (en) * | 2021-09-08 | 2021-12-10 | 无锡理奇智能装备有限公司 | One-way back pressure valve |
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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: 20150603 Termination date: 20200105 |