CN203374908U - Automatic flow return valve - Google Patents
Automatic flow return valve Download PDFInfo
- Publication number
- CN203374908U CN203374908U CN201320417588.1U CN201320417588U CN203374908U CN 203374908 U CN203374908 U CN 203374908U CN 201320417588 U CN201320417588 U CN 201320417588U CN 203374908 U CN203374908 U CN 203374908U
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- valve
- bypass
- valve body
- main valve
- connecting rod
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Abstract
The utility model discloses an automatic flow return valve which comprises a valve body, a main valve rod, a main valve clack, a connecting rod, a bypass valve clack, a throttle mechanism and a bypass valve body. The main valve rod, the main valve clack, the connecting rod and the bypass valve clack are arranged in the valve body which is provided with a valve inlet, a valve outlet and a flow return opening. The valve body is connected the bypass valve body at the flow return opening. A bypass channel is arranged in the bypass valve body. The throttle mechanism is arranged in the bypass channel. A pressure reducing flow adjusting mechanism is arranged in the throttle mechanism and carries out corresponding adjusting according to magnitude of flow. The main valve rod is connected with the main valve clack. The connecting rod is arranged on the main valve clack in a swinging mode. One end of the connecting rod is connected with the bypass valve clack which is arranged at one end of the bypass channel and moves by swinging of the connecting rod. Connecting, disconnecting and the throttle area of the bypass channel are adjusted, and the flow of the bypass channel is controlled. According to the automatic flow return valve, an adjusting mechanism can automatically adjust the position of the adjusting mechanism according to the pressure at the two ends, and accordingly the stability of flow return is improved.
Description
Technical field
The utility model belongs to the mechanical device technical field, relates to a kind of reflux valve, relates in particular to a kind of automatic reflux valve.
Background technique
Reflux valve be a kind of protective system because of the destroyed valve of overpressure, once the pressure medium in system pipeline or device surpasses setting value, can automatic release pressure, thereby reach the purpose of safety protection.
Existing automatic reflux valve mainly comprises main valve and by-pass valve, and main valve comprises valve body, main valve stem, main valve clack, and by-pass valve comprises bypass valve body, bypass flap, throttle mechanism; Existing throttle mechanism generally adopts the hollow plate structure, and effect of easing stress is not good enough, the backflow less stable.
In view of this, nowadays in the urgent need to designing a kind of new automatic reflux valve, to overcome the above-mentioned defect of existing reflux valve.
The model utility content
Technical problem to be solved in the utility model is: a kind of automatic reflux valve is provided, can improves the stability of backflow.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of automatic reflux valve, described reflux valve comprises: valve body, main valve stem, main valve clack, connecting rod, bypass flap, throttle mechanism, bypass valve body;
Described main valve stem, main valve clack, connecting rod, bypass flap are arranged in valve body;
Described valve body is provided with valve inlet, valve outlet port, refluxing opening, and described valve body is connected with described bypass valve body at refluxing opening, in the bypass valve body, is provided with bypass channel;
Described throttle mechanism is arranged in bypass channel, is provided with decompression adjust flux mechanism in described throttle mechanism, according to the pressure flow size, does corresponding adjusting;
Described main valve stem connects main valve clack, and what connecting rod was swingable is arranged on main valve clack, and an end of connecting rod connects the bypass flap;
Described bypass flap is arranged at an end of described bypass channel, by the swing of connecting rod, moves, and regulates break-make and the orifice size of bypass channel, controls the flow of bypass channel.
As a kind of preferred version of the present utility model, described decompression adjust flux mechanism comprises multistage throttle bar, core bar, orifice sleeve, control head, orifice plate, and orifice sleeve is enclosed within multistage throttle bar periphery, and control head connects an end of multistage throttle bar by core bar; The core bar that moves through of control head is delivered on the multistage throttle bar, by multistage throttle bar multi-step pressure reduction, finally by orifice plate correction minimum discharge to meet the minimum discharge demand of different pumps.
As a kind of preferred version of the present utility model, described valve body comprises main valve body, the valve gap be connected with main valve body.
The beneficial effects of the utility model are: the automatic reflux valve the utility model proposes, controlling mechanism can be regulated automatically according to the pressure at two ends the position of oneself, thereby improves the stability refluxed.The little wearing and tearing of the utility model automatic reflux valve energy low noise reflux medium is reduced to the low pressure suitable backflow storage device from the high pressure of pump discharge.
The accompanying drawing explanation
The structural representation that Fig. 1 is the utility model automatic reflux valve.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Embodiment one
Refer to Fig. 1, the utility model has disclosed a kind of automatic reflux valve, and described reflux valve comprises: lower valve body 1, upper valve body 2, main valve stem 3, main valve clack 4, connecting rod 5, bypass flap 6, throttle mechanism 7, bypass valve body 8; Lower valve body 1, upper valve body 2 are fixedly connected with, and form the valve body of reflux valve.Described main valve stem 3, main valve clack 4, connecting rod 5, bypass flap 6 are arranged in valve body.
Described valve body is provided with valve inlet, valve outlet port, refluxing opening, and described lower valve body 1 is connected with described bypass valve body 8 at the refluxing opening place, in bypass valve body 8, be provided with bypass channel; Described throttle mechanism 7 is arranged in bypass channel, is provided with decompression adjust flux mechanism in described throttle mechanism 7, does corresponding adjusting according to the pressure flow size, and adjusts the position of self.Described decompression adjust flux mechanism comprises multistage throttle bar, core bar, orifice sleeve, control head, orifice plate, and orifice sleeve is enclosed within multistage throttle bar periphery, and control head connects an end of multistage throttle bar by core bar; The core bar that moves through of control head is delivered on the multistage throttle bar, by the multi-step pressure reduction of multistage throttle bar, finally by orifice plate correction minimum discharge to meet the minimum discharge demand of different pumps.
Described main valve stem 3 connects main valve clack 4, and what connecting rod 5 was swingable is arranged on main valve clack 4, and an end of connecting rod 5 connects bypass flap 6; Described bypass flap 6 is arranged at an end of described bypass channel, by the swing of connecting rod 5, moves, and regulates break-make and the orifice size of bypass channel, controls the flow of bypass channel.
In sum, the automatic reflux valve the utility model proposes, controlling mechanism can be regulated automatically according to the pressure at two ends the position of oneself, thereby improves the stability refluxed.The automatic reflux valve the utility model proposes, controlling mechanism can be regulated automatically according to the pressure at two ends the position of oneself, thereby improves the stability refluxed.The little wearing and tearing of the utility model automatic reflux valve energy low noise reflux medium is reduced to the low pressure suitable backflow storage device from the high pressure of pump discharge.
The utility model is simple in structure, reliable stable, only has a small amount of moving element; The pressure export place that is arranged on pump that can be horizontal or vertical easily is installed.Bypass flow is large, maximum to 60% of main flow, KV value capable of regulating; Other liquid mediums such as applicable water, oil, methyl alcohol, operating temperature is from-196 ℃～300 ℃.
Here description of the present utility model and application is illustrative, not wants by scope restriction of the present utility model in the above-described embodiments.Here disclosed embodiment's distortion and change is possible, and for those those of ordinary skill in the art, the various parts of embodiment's replacement and equivalence are known.Those skilled in the art are noted that in the situation that do not break away from spirit of the present utility model or substantive characteristics, and the utility model can be with other form, structure, layout, ratio, and realizes with other assembly, material and parts.In the situation that do not break away from the utility model scope and spirit, can carry out other distortion and change to disclosed embodiment here.
Claims (3)
1. an automatic reflux valve, is characterized in that, described reflux valve comprises: valve body, main valve stem, main valve clack, connecting rod, bypass flap, throttle mechanism, bypass valve body;
Described main valve stem, main valve clack, connecting rod, bypass flap are arranged in valve body;
Described valve body is provided with valve inlet, valve outlet port, refluxing opening, and described valve body is connected with described bypass valve body at refluxing opening, in the bypass valve body, is provided with bypass channel;
Described throttle mechanism is arranged in bypass channel, is provided with decompression adjust flux mechanism in described throttle mechanism, according to the pressure flow size, does corresponding adjusting;
Described main valve stem connects main valve clack, and what connecting rod was swingable is arranged on main valve clack, and an end of connecting rod connects the bypass flap;
Described bypass flap is arranged at an end of described bypass channel, by the swing of connecting rod, moves, and regulates break-make and the orifice size of bypass channel, controls the flow of bypass channel.
2. automatic reflux valve according to claim 1 is characterized in that:
Described decompression adjust flux mechanism comprises multistage throttle bar, core bar, orifice sleeve, control head, orifice plate, and orifice sleeve is enclosed within multistage throttle bar periphery, and control head connects an end of multistage throttle bar by core bar;
The core bar that moves through of described control head is delivered on the multistage throttle bar, by multistage throttle bar multi-step pressure reduction, meets the minimum discharge demand of different pumps by orifice plate correction minimum discharge.
3. automatic reflux valve according to claim 1 is characterized in that:
Described valve body comprises main valve body, the valve gap be connected with main valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320417588.1U CN203374908U (en) | 2013-07-12 | 2013-07-12 | Automatic flow return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320417588.1U CN203374908U (en) | 2013-07-12 | 2013-07-12 | Automatic flow return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374908U true CN203374908U (en) | 2014-01-01 |
Family
ID=49837437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320417588.1U Expired - Lifetime CN203374908U (en) | 2013-07-12 | 2013-07-12 | Automatic flow return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374908U (en) |
-
2013
- 2013-07-12 CN CN201320417588.1U patent/CN203374908U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220729 Address after: 200444 Shanghai city Baoshan District Industrial Park Baoshan City Fengxiang Road No. 1675 Patentee after: KAITAI VALVE Group Address before: 200444 third floor, complex building, No. 1919, Fengxiang Road, Baoshan District, Shanghai Patentee before: SHANGHAI RESEARCH INSTITUTE OF GENERAL MACHINERY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |