CN201507692U - Reversing pedal control valve - Google Patents
Reversing pedal control valve Download PDFInfo
- Publication number
- CN201507692U CN201507692U CN2009200822689U CN200920082268U CN201507692U CN 201507692 U CN201507692 U CN 201507692U CN 2009200822689 U CN2009200822689 U CN 2009200822689U CN 200920082268 U CN200920082268 U CN 200920082268U CN 201507692 U CN201507692 U CN 201507692U
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- CN
- China
- Prior art keywords
- spool
- flow
- control valve
- conversion
- water
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- Expired - Fee Related
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Abstract
The utility model relates to a reversing pedal control valve, which solves the problems of poor sealing performance, inconvenient use and short service life of the prior control valve. A valve body (11) is provided with a water inlet joint (1), a water outlet joint (5) and an overflow port (2). A pedal (8) corresponds to a shutoff valve core (3). The utility model is characterized in that the shutoff valve core (3) is connected with a first spring (9), a first flow channel between the water inlet joint (1) and the water outlet joint (5) is in a normal close state, a second flow channel between the water inlet joint (1) and the overflow port (2) is provided with a conversion valve core (7), one end surface of the conversion valve core is a conical surface and is located in the second flow channel and the connection of the other end surface of the conversion valve core and a second spring (10) is communicated with the first flow channel.
Description
Technical field:
The utility model is relevant with the current-intercepting switch valve of big flow water jet.
Background technique:
Existing high pressure, big flow (pressure 100MPa, flow 5m
3/ h) the current-intercepting switch valve of water jet, foot valve promptly commonly used now as shown in Figure 1, water inlet and water outlet are straight-through, the control valve spool is done the use of overflow unloading valve for opening Third Road.During proper functioning, spool is normally closed, the high pressure water nozzle that goes directly; In the time of need stopping, opening spool, high pressure water overflow off-load.Its shortcoming: as long as turn on pump, nozzle promptly goes out stream, and is inconsistent with the custom keying function of valve; Seal spool is by the spring force sealing, and reliability is low; Spool is short working life.
The model utility content:
The purpose of this utility model provides a kind of easy to operate, and sealing is reliable, long service life, the commutation type foot control valve of diverse in function.
The utility model is achieved in that
Advantage of the present utility model is:
The utility model commutation type foot control valve, water supply connector 1, water output connector 5 and flow-off 2 are arranged on the valve body 11, there is foot treadle 8 corresponding with the spool 3 that dams, the spool 3 that it is characterized in that damming is connected with first spring 9, first flow between water supply connector 1 and the water output connector 5 is in normally off, conversion spool 7 is arranged on second runner between water supply connector 1 and the flow-off 2, one end face of conversion spool is the conical surface, be arranged in second runner, the other end of conversion spool is connected with second spring 10, is communicated with first flow.
The cone of damming on the spool 3 cooperates with the valve seat 4 that dams on the first flow, and the other end of the spool 4 that dams is connected with foot treadle 8, and the cone on the spool 3 that dams is communicated with second runner.
Flow-off 2 can be connected with shower nozzle or throttle nozzle.
1, step on foot treadle, nozzle goes out stream; Unclamp foot treadle, high pressure unloading, this is with the operating habit unanimity of people's routine.
2, sealing is reliable, long service life, and main cause: the conversion spool is in off position the time, its sealing force is mainly provided by water pressure, and sealing force is bigger, has avoided because the sealing force deficiency, cause valve linear sealing position " little oozing " phenomenon to occur, and the rapid wearing of conversion spool was lost efficacy.Dam spool in off position the time, and system is in low pressure, and therefore, the spool that dams also can obtain higher working life.
3, the commutation type foot control valve also possesses following 2 kinds of functions except using as single rifle jet control switch:
(1) making selector valve uses: other one road pipeline and shower nozzle on the flow-off termination, can realize the alternately commutation work between 2 shower nozzles.
(2) be used for the operation of many shower nozzles: set up and the identical throttle nozzle in washer jet equivalent aperture at the flow-off end, can be implemented in the multichannel cleaning process that connects a plurality of foot control valves in the cover system, but and the operator on every road independent switch all, system pressure remains unchanged, and other operators are not exerted an influence.
Description of drawings:
Fig. 1 is existing foot control valve structural drawing.
Fig. 2 is a structural drawing of the present utility model.
Embodiment:
The commutation type foot control valve mainly is made up of two groups of spools, and structure as shown in Figure 2.Use mainly as the high-pressure water shot flow control switch, also can be two-way output commutation, because of it adopts the control of the foot treadle application of force, so be called the commutation type foot control valve.
This valve is the Three way type valve as shown in Figure 2, and water supply connector 1 and water output connector 5 are communicated with by the spool 3 that dams, and water supply connector and flow-off are communicated with by conversion spool 7.In normal the use, water supply connector 1 connects jetting machine, and water output connector 5 connects high pressure nozzle, and flow-off connects return pipe to water tank.
Working principle: foot treadle is the application of force not, and the spool 3 that dams is in closed condition under spring 9 effects, and when the washing machine unlatching, high pressure water is opened conversion spool 7 automatically, and high pressure water is by the whole reflow tanks of flow-off; When needs work, step on foot treadle, the spool 3 that dams is opened, and conversion spool 7 front and back pressure equate, close at spring 10 effect underflow head pieces 2, and high pressure water flows out the high-pressure work state that is in through water output connector 5; When needs are shut down, unclamp foot treadle, conversion spool 3 is closed under spring 9 effects, and the water output connector high-pressure water flow is turned off, and conversion spool 7 back pressures (left side) pressure is reduced to normal pressure rapidly, and high pressure water is opened 7 overflows of conversion spool once more automatically.
Claims (3)
1. commutation type foot control valve, water supply connector (1) is arranged on the valve body (11), water output connector (5) and flow-off (2), there is foot treadle (8) corresponding with the spool that dams (3), the spool (3) that it is characterized in that damming is connected with first spring (9), first flow between water supply connector (1) and the water output connector (5) is in normally off, on second runner between water supply connector (1) and the flow-off (2) conversion spool (7) is arranged, one end face of conversion spool is the conical surface, be arranged in second runner, the other end of conversion spool is connected with second spring (10), is communicated with first flow.
2. commutation type foot control valve according to claim 1, the cone that it is characterized in that damming on the spool (3) cooperates with the valve seat that dams (4) on the first flow, the other end of spool (3) of damming is connected with foot treadle (8), and the cone on the spool that dams (3) is communicated with second runner.
3. commutation type foot control valve according to claim 1 is characterized in that flow-off (2) can be connected with shower nozzle or throttle nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200822689U CN201507692U (en) | 2009-07-02 | 2009-07-02 | Reversing pedal control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200822689U CN201507692U (en) | 2009-07-02 | 2009-07-02 | Reversing pedal control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507692U true CN201507692U (en) | 2010-06-16 |
Family
ID=42468819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200822689U Expired - Fee Related CN201507692U (en) | 2009-07-02 | 2009-07-02 | Reversing pedal control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588668A (en) * | 2012-02-08 | 2012-07-18 | 成都力锋清洗机股份有限公司 | Novel foot valve |
-
2009
- 2009-07-02 CN CN2009200822689U patent/CN201507692U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588668A (en) * | 2012-02-08 | 2012-07-18 | 成都力锋清洗机股份有限公司 | Novel foot valve |
| CN102588668B (en) * | 2012-02-08 | 2013-06-26 | 成都力锋清洗机股份有限公司 | Novel foot 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 |
Granted publication date: 20100616 Termination date: 20170702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |