CN203656285U - One-way valve with pressure feedback control - Google Patents
One-way valve with pressure feedback control Download PDFInfo
- Publication number
- CN203656285U CN203656285U CN201420026154.3U CN201420026154U CN203656285U CN 203656285 U CN203656285 U CN 203656285U CN 201420026154 U CN201420026154 U CN 201420026154U CN 203656285 U CN203656285 U CN 203656285U
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- CN
- China
- Prior art keywords
- hole
- piston
- end cap
- piston rod
- way valve
- 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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Abstract
The utility model discloses a one-way valve with pressure feedback control. The valve comprises a valve body, a valve element and an end cover. A first through hole and a second through hole are formed in the valve body and are communicated. A hole is formed in the lower portion of the end cover, a first piston is arranged in the hole, and the end cover is connected with the valve body to seal the upper end face of the first through hole. The valve element is arranged in the first through hole. The valve element comprises a casing, a piston rod, a second piston and a spring. The casing is of a hollow structure, the second piston is arranged in the casing, the piston rod is arranged at the top end of the second piston, the other end of the piston rod penetrates the top end of the casing, and the spring is arranged between the second piston and the top end of the casing. The one-way valve is simple in structure, convenient to use, quick to maintain, capable of effectively ensuring safety of system downlink devices and meanwhile capable of being washed and maintained at the working station directly.
Description
Technical field
The utility model relates to a kind of one-way valve, relates in particular to a kind of one-way valve with pressure feedback control.
Background technique
One-way valve and pressure controlled valve are as common equipment on pipeline, one is to guarantee not anti-stream of liquid in pipeline, another is for pilot line pressure, to ensure that upstream device does not damage because pressure is excessive, and the structure of present one-way valve is straight-through type, only have import and outlet, in the time that breaking down, one-way valve one-way valve entirety need to be disassembled from pipeline, thereby keep in repair the latter and change one-way valve, the trouble that so just makes maintenance man operate very, spend a large amount of manpower and materials, affected manufacturing efficiency.
Model utility content
The purpose of this utility model is: provide a kind of simple in structure, easy to use, maintenance efficiently with the one-way valve of pressure feedback control, guarantee system downstream device security, can directly on working position, clean and keep in repair simultaneously, greatly reduce the workload of cleaning and keeping in repair, time and manpower is saved, improved manufacturing efficiency.
To achieve these goals, the technical solution of the utility model is:
With an one-way valve for pressure feedback control, comprise valve body, spool and end cap; Described valve body is provided with the first through hole and the second through hole; Described the first through hole and the second through hole are connected; Described end cap bottom arranges hole; In described hole, first piston is set; Described end cap is connected with described valve body, sealing the first through hole upper-end surface; Described spool is arranged in described the first through hole; Described spool comprises described housing, piston rod, the second piston and spring; Described housing is hollow structure, and inside arranges described the second piston; Described the second piston tip is provided with described piston rod; The described piston rod the other end is arranged in described housing top; Between described the second piston and housing top, described spring is set; Described spring is arranged in described piston rod; Described piston rod is arranged in described first piston; Described housing side is provided with third through-hole; Described third through-hole and the second through hole are connected; Pressure control mouth is set on described end cap.
Further, described the first through hole top arranges the first flange; Described the first through hole bottom arranges the second flange; Described end cap is connected with described the first flange by bolt; Between described end cap and the first end face of flange, be provided with sealing gasket.
Further: on described first piston, seal ring is set.
The utility model is owing to having adopted above-mentioned technology, the good effect that makes it compared with prior art to have is: the utility model is owing in the first through hole of valve body, spool being set, only end cap need be unloaded down, without valve body is disassembled from pipeline, can conveniently spool be taken out in valve body, carry out maintain and replace work; The utility model is owing to being provided with the second through hole being connected with the first through hole, and liquid enters from the bottom of the first through hole, then exports from the other end of the second through hole; The utility model is owing to being provided with the second piston and spring, and be provided with the third through-hole being connected with the second through hole at the side of housing, in the time that liquid enters from the bottom of the first through hole, by spring jack-up, enter the second through hole by third through-hole immediately, liquid is transferred out; The utility model is owing to being provided with first piston in end cap, and on end cap, be provided with pressure control mouth, the pressure feedback of upstream device can be come, act on first piston, promoting the second piston reverses direction by piston rod moves, regulate the aperture of the second piston, thereby controlled down-stream system pressure size.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model with the one-way valve of pressure feedback control.
Embodiment
Further illustrate embodiment of the present utility model below in conjunction with accompanying drawing.
Shown in Figure 1, a kind of one-way valve with pressure feedback control, comprises valve body 1, spool 2 and end cap 3; Described valve body 1 is provided with the first through hole 11 and the second through hole 12; Described the first through hole 11 and the second through hole 12 are connected; Described end cap 3 bottoms arrange hole 31; The interior first piston 32 that arranges in described hole 31; Described end cap 3 is connected with described valve body 1, sealing the first through hole 11 upper-end surfaces; Described spool 2 is arranged in described the first through hole 11; Described spool 2 comprises described housing 21, piston rod 22, the second piston 23 and spring 24; Described housing 21 is hollow structures, and inside arranges described the second piston 23; Described the second piston 23 tops are provided with described piston rod 22; Described piston rod 22 the other ends are arranged in described housing 21 tops; Between described the second piston 23 and housing 21 tops, described spring 24 is set; Described spring 24 is arranged in described piston rod 22; Described piston rod 22 is arranged in described first piston 32; Described housing 21 sides are provided with third through-hole 25; Described third through-hole 25 and the second through hole 12 are connected; Pressure control mouth 33 is set on described end cap 3; Owing to spool 2 being set in the first through hole of valve body, without valve body 1 is disassembled from pipeline, only end cap 3 need be unloaded down, can be conveniently by spool 2 from the interior taking-up of valve body 1, carry out maintain and replace work; Owing to being provided with the second through hole 12 being connected with the first through hole 11, liquid enters from the bottom of the first through hole 11, then exports from the other end of the second through hole 12; Owing to being provided with the second piston 23 and spring 24, and be provided with the third through-hole 25 being connected with the second through hole 12 at the side of housing, in the time that liquid enters from the bottom of the first through hole 11, by the second piston 23 jack-up, enter the second through hole 12 by third through-hole 25 immediately, liquid is transferred out; Owing to being provided with first piston 32 in end cap 3, and on end cap 2, be provided with pressure control mouth 33, the pressure feedback of upstream device can be come, act on first piston 32, promoting the second piston 23 by piston rod 22 oppositely moves, regulate the aperture of the second piston 23, thereby controlled down-stream system pressure size.
Preferably, described the first through hole 11 tops arrange the first flange 111; Described the first through hole 11 bottoms arrange the second flange 112; Described end cap 3 is connected with described the first flange 111 by bolt; Between described end cap 3 and the first end face of flange, be provided with sealing gasket 4, flange is set can be conveniently connected with other equipment.
Preferably, on described first piston 32, seal ring is set, can effectively plays a sealing effect, avoid string oil in piston cavity.
In sum, the utility model is simple in structure, easy to use, maintenance is quick, can effectively guarantee system downstream device security, can directly on working position, clean and keep in repair simultaneously, greatly reduced the workload of cleaning and keeping in repair, time and manpower is saved, improved manufacturing efficiency.
Claims (3)
1. with an one-way valve for pressure feedback control, it is characterized in that: comprise valve body (1), spool (2) and end cap (3); Described valve body (1) is provided with the first through hole (11) and the second through hole (12); Described the first through hole (11) and the second through hole (12) are connected; Described end cap (3) bottom arranges hole (31); First piston (32) is set in described hole (31); Described end cap (3) is connected with described valve body (1), sealing the first through hole (11) upper-end surface; Described spool (2) is arranged in described the first through hole (11); Described spool (2) comprises housing (21), piston rod (22), the second piston (23) and spring (24); Described housing (21) is hollow structure, and inside arranges described the second piston (23); Described the second piston (23) top is provided with described piston rod (22); Described piston rod (22) the other end is arranged in described housing (21) top; Between described the second piston (23) and housing (21) top, described spring (24) is set; Described spring (24) is arranged in described piston rod (22); Described piston rod (22) is arranged in described first piston (32); Described housing (21) side is provided with third through-hole (25); Described third through-hole (25) and the second through hole (12) are connected; Pressure control mouth (33) is set on described end cap (3).
2. the one-way valve with pressure feedback control according to claim 1, is characterized in that: described the first through hole (11) top arranges the first flange (111); Described the first through hole (11) bottom arranges the second flange (112); Described end cap (3) is connected with described the first flange (111) by bolt; Between described end cap (3) and described the first flange (111), be provided with sealing gasket (4).
3. the one-way valve with pressure feedback control according to claim 1, is characterized in that: described first piston arranges seal ring on (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026154.3U CN203656285U (en) | 2014-01-08 | 2014-01-08 | One-way valve with pressure feedback control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026154.3U CN203656285U (en) | 2014-01-08 | 2014-01-08 | One-way valve with pressure feedback control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656285U true CN203656285U (en) | 2014-06-18 |
Family
ID=50922673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420026154.3U Expired - Fee Related CN203656285U (en) | 2014-01-08 | 2014-01-08 | One-way valve with pressure feedback control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949265A (en) * | 2017-05-05 | 2017-07-14 | 珠海格力电器股份有限公司 | Air-conditioning equipment, handpiece Water Chilling Units, non-return structure and its control method |
| WO2023016070A1 (en) * | 2021-08-12 | 2023-02-16 | 南京菡束环保设备有限公司 | Backflow regulating valve device and water purification system |
-
2014
- 2014-01-08 CN CN201420026154.3U patent/CN203656285U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949265A (en) * | 2017-05-05 | 2017-07-14 | 珠海格力电器股份有限公司 | Air-conditioning equipment, handpiece Water Chilling Units, non-return structure and its control method |
| WO2023016070A1 (en) * | 2021-08-12 | 2023-02-16 | 南京菡束环保设备有限公司 | Backflow regulating valve device and water purification system |
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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 |
Granted publication date: 20140618 Termination date: 20150108 |
|
| EXPY | Termination of patent right or utility model |