CN102278497A - Foot valve - Google Patents
Foot valve Download PDFInfo
- Publication number
- CN102278497A CN102278497A CN201110175794A CN201110175794A CN102278497A CN 102278497 A CN102278497 A CN 102278497A CN 201110175794 A CN201110175794 A CN 201110175794A CN 201110175794 A CN201110175794 A CN 201110175794A CN 102278497 A CN102278497 A CN 102278497A
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- China
- Prior art keywords
- valve
- liquid
- valve body
- seat
- foot
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- 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.)
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- Lift Valve (AREA)
- Valve Housings (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a foot valve which comprises a valve body, wherein the valve body comprises a main valve body and a pilot valve body, and the main valve body and the pilot valve body are vertical to each other; the main valve body is provided with a main valve; the main valve comprises a joint, a liquid discharging seat, an intermediate sleeve, a valve core, a liquid returning seat and a valve pocket which are sequentially connected in series from left to right; the liquid discharging seat, the intermediate sleeve and the liquid returning seat are installed on the valve core; the pilot valve body is provided with a pilot valve; the pilot valve comprises a swivel nut, a valve seat, a pilot valve core, a spring, a pilot valve sleeve, a control valve seat and a screw which are sequentially connected in series from top to bottom; the intermediate sleeve is provided with three through holes respectively corresponding to a liquid inlet, a liquid outlet and a liquid return hole; and the pilot valve sleeve is provided with a pinhole communicated with the main valve. The foot valve has the advantages of reasonable structure, less component and parts and convenience in installation; and meanwhile, a seal ring is used between parts to ensure the sealing effect of the foot valve provided by the invention to be good.
Description
Technical field
The present invention relates to a kind of control valve, is exactly a kind of foot valve that is used for washing machine specifically.
Background technique
Washing machine is to be used for the washing and filtering hydraulic system in manufacturing, assembling, using process and the pollutant that generates or invade when safeguarding; Also go for the periodic maintenance of work fluid is filtered, improve turbidity test, avoid or reduce the fault that causes because of pollution, thereby guarantee high-performance, high-reliability and the long lifetime of hydraulic system equipment.
In flushing process, mainly be to come Control work and time-out by foot valve, the complex structure of existing foot valve, component are more, install trouble, and poor work stability.
Summary of the invention
Goal of the invention:, the object of the present invention is to provide a kind of foot valve simple in structure, easy for installation in order to overcome the deficiencies in the prior art.
Technological scheme: for realizing above-mentioned technical problem, the technical solution used in the present invention is: a kind of foot valve, comprise valve body, and described valve body comprises orthogonal main valve body and guide's valve body; Be provided with main valve on main valve body, described main valve comprises from left to right the joint of serial connection, fluid valve seat, middle cover, spool, time liquid valve seat, valve pocket successively, and described fluid valve seat, middle cover and time liquid valve seat are enclosed within on the spool; Be provided with pilot valve on the pilot valve body, described pilot valve comprises from top to bottom swivel nut, valve seat, guide's spool, spring, guide's valve pocket, control valve seat and the screw of serial connection successively; On described middle cover, be provided with the through hole of three the corresponding liquid entering holes of difference, liquid outlet and liquid return holes, formerly have the aperture that communicates with main valve on the guide valve bushing.
As improvement of the present invention, described spool is tapered.
Working principle of the present invention: when regulating working pressure, must when pedal depresses, carry out.Spool automatic-closing valve under action of hydraulic force when pedal is not stepped on, foot valve outlet liquid flows out.Pressure tank unloads the washing machine low pressure operation of sening as an envoy to by liquid return hole.When pedal was not stepped on, spool was opened valve face under action of hydraulic force, exported to communicate, and high-pressure water flow is to working hole, and liquid return hole is closed.
In order to improve sealing effect, between described joint and fluid valve seat, seal ring is installed.
Beneficial effect: compared with prior art, advantage of the present invention is: rational in infrastructure, component are few, and are easy for installation, and also used seal ring between part and part, make good sealing effect of the present invention.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explanation.
As shown in Figure 1, a kind of foot valve comprises valve body 1, and valve body 1 comprises orthogonal main valve body 11 and guide's valve body 12; Be provided with main valve on main valve body 11, main valve comprises joint 2, fluid valve seat 3, middle cover 4, taper valve core 5, returns liquid valve seat 6, valve pocket 7; Joint 2, fluid valve seat 3, middle cover 4, spool 5, time liquid valve seat 6, valve pocket 7 are connected in series from left to right successively; Fluid valve seat 3, middle cover 4 and time liquid valve seat 6 are enclosed within on the spool 5; On pilot valve body 12, be provided with pilot valve, this pilot valve comprises swivel nut 8, valve seat 9, guide's spool 10, spring 13, guide's valve pocket 14, control valve seat 15 and screw 16, and wherein swivel nut 8, valve seat 9, guide's spool 10, spring 13, guide's valve pocket 14, control valve seat 15 and screw 16 are connected in series from top to bottom successively; Be provided with three through holes on middle cover 4, each through hole is corresponding liquid entering hole, liquid outlet and liquid return hole respectively, formerly has the aperture that communicates with main valve on the guide valve bushing 14.Swivel nut 8 links to each other with pedal by bolt and suitable O-ring seals is installed on bolt.Between joint 2 and the fluid valve seat 3, between fluid valve seat 3 and the middle cover 4, returning between liquid valve seat 6 and the valve pocket 7 O-ring seals all be installed.Formerly between guide valve seat and the guide's valve pocket 14, be equipped with O-ring seals between control valve seat 15 and the screw 16.Screw 16 best adopting process screws.
P is that liquid entering hole, O are that liquid return hole, K are liquid outlet among Fig. 1.Liquid entering hole, liquid outlet and liquid return hole all are located on the main valve body 11, and joint 2 is located at liquid outlet, liquid inlet joint is installed respectively, returns the liquid joint at liquid entering hole and liquid return hole, and it is fixed that liquid inlet joint and time liquid joint are joined according to the user.
When this foot valve is installed, at first each part to be cleaned, antirust processing will be carried out after installing.The working pressure of foot valve of the present invention is 1520Mpa, and flow is 80L/min, and employed medium is a clear water.
When regulating working pressure, must when depressing, pedal carry out.Spool 5 automatic-closing valve (cone valve) under action of hydraulic force when pedal is not stepped on, foot valve outlet liquid flows out.Pressure tank unloads the washing machine low pressure operation of sening as an envoy to by liquid return hole.When pedal was not stepped on, spool 5 was opened valve face under action of hydraulic force, exported to communicate, and high-pressure water flow is to working hole, and liquid return hole is closed.At liquid return hole liquid return pipe must be installed, this liquid return pipe is rubber pipe preferably.
The above only is a preferred implementation of the present invention; be noted that for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a foot valve is characterized in that, comprises valve body (1), and described valve body (1) comprises orthogonal main valve body (11) and guide's valve body (12); On main valve body (11), be provided with main valve, described main valve comprises from left to right the joint (2) of serial connection, fluid valve seat (3), middle cover (4), spool (5), time liquid valve seat (6), valve pocket (7) successively, and described fluid valve seat (3), middle cover (4) and time liquid valve seat (6) are enclosed within on the spool (5); Be provided with pilot valve on pilot valve body (12), described pilot valve comprises from top to bottom swivel nut (8), valve seat (9), guide's spool (10), spring (13), guide's valve pocket (14), control valve seat (15) and the screw (16) of serial connection successively; On described middle cover (4), be provided with the through hole of three the corresponding liquid entering holes of difference, liquid outlet and liquid return holes, formerly have the aperture that communicates with main valve on the guide valve bushing (14).
2. foot valve according to claim 1 is characterized in that, described spool (5) is tapered.
3. foot valve according to claim 1 is characterized in that, between described joint (2) and fluid valve seat (3) seal ring is installed.
4. foot valve according to claim 1 is characterized in that, described swivel nut (8) links to each other with pedal by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110175794A CN102278497A (en) | 2011-06-28 | 2011-06-28 | Foot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110175794A CN102278497A (en) | 2011-06-28 | 2011-06-28 | Foot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102278497A true CN102278497A (en) | 2011-12-14 |
Family
ID=45104120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110175794A Pending CN102278497A (en) | 2011-06-28 | 2011-06-28 | Foot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102278497A (en) |
-
2011
- 2011-06-28 CN CN201110175794A patent/CN102278497A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111214 |