CN201606325U - Pilot valve - Google Patents
Pilot valve Download PDFInfo
- Publication number
- CN201606325U CN201606325U CN2009202930372U CN200920293037U CN201606325U CN 201606325 U CN201606325 U CN 201606325U CN 2009202930372 U CN2009202930372 U CN 2009202930372U CN 200920293037 U CN200920293037 U CN 200920293037U CN 201606325 U CN201606325 U CN 201606325U
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- Prior art keywords
- valve
- valve pocket
- hole
- cavity
- handle
- 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 - Lifetime
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- 239000007788 liquid Substances 0.000 claims abstract description 51
- 230000009471 action Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000008358 core component Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The utility model relates to a pilot valve, comprising a valve body, a valve core component, an actuating device and a handle. A valve cavity is formed in the valve body; a liquid inlet, a liquid return hole and a working hole are communicated with the valve cavity and formed on the outer wall of the valve body. A valve core component is arranged in the valve cavity in a reciprocating way in the axial direction of the valve body; the communication between the liquid inlet and the working hole and the communication between the liquid return hole and the working hole can be alternatively cut off by the reciprocating movement of the valve core component in the valve cavity. The actuating device is arranged in the valve cavity and used for driving the valve core component to reciprocate. The handle is arranged on the valve body and used for controlling the actuating device to move. A containing cavity is formed between part of the actuating device, namely, the part positioned at the end where the liquid return hole is located in the valve cavity and the valve cavity; a liquid passing hole communicated with the containing cavity is arranged on the valve body and is communicated with the liquid inlet through a pipe. The utility model provides a pilot valve which is effortless for operation.
Description
Technical field
The utility model relates to a kind of pilot valve, specifically, is the manually-operable pilot valve that a kind of coal mining industry is used.
Background technique
Pilot valve is the Auxiliary valves that uses for the operation of controlling other valves or element, and the pilot valve that is usually used in small flow is controlled the occasion of the main control valve of big flow.Chinese patent literature CN101235833A has proposed a kind of pilot valve, this pilot valve comprises valve body, is arranged on the spool in the valve body, and the handle of control spool action, wherein, valve body is provided with liquid entering hole, hydraulic control mouth and liquid return hole, liquid entering hole and liquid return hole place are provided with switch gear respectively, by the position of handle control switch device, can control opening or closing of liquid entering hole and liquid return hole.The pilot valve of this model utility is simple in structure, easy to operate, but also have following shortcoming in actual use: the pilot valve of this model utility is when the operating handle feed liquor, need to use bigger steering force, this is because the liquid entering hole of pilot valve communicates with highly pressurised liquid, make the feed liquor ball around highly pressurised liquid abrim, when the operating handle feed liquor, not only need to overcome the spring force that acts on the feed liquor ball, also need to overcome the extra high pressure liquid pressure that acts on the feed liquor ball, could will block the feed liquor ball of ball seat mouth and push open from the ball seat mouth.
The model utility content
For this reason, when technical problem to be solved in the utility model is pilot valve operating grip of the prior art, need overcomes high pressure liquid pressure and cause operating the problem of effort, a kind of pilot valve of rapid operation is provided.
For solving the problems of the technologies described above, a kind of pilot valve of the present utility model comprises
Valve body forms valve pocket in the described valve body, forms the liquid entering hole, liquid return hole, the working hole that communicate with described valve pocket on the described valve outer wall;
Mangetic core assembly, described mangetic core assembly can come and go being arranged in the described valve pocket of moving along described valve body axial direction, described mangetic core assembly coming and going in described valve pocket moved, can alternately block being communicated with between described liquid entering hole and the described working hole, and being communicated with between described liquid return hole and the described working hole;
Actuator, described actuator is arranged in the described valve pocket, drives described mangetic core assembly and comes and goes mobile;
Handle, described handle are arranged on the described actuator action of control on the described valve body;
Form receiving cavity between the part that is in described liquid return hole place end in the described valve pocket of described actuator and the described valve pocket, described valve body is provided with the liquid-through hole that communicates with described receiving cavity, is communicated with between described liquid-through hole and the described liquid entering hole by pipeline.
Above-mentioned pilot valve, described valve body comprises the middle base that forms cavity on the axial direction, be arranged at the valve pocket that forms the inner chamber that communicates with described cavity respectively and the screw plug at described middle base two ends, the described cavity of described middle base and the described inner chamber of valve pocket and screw plug constitute described valve pocket, and wherein said middle base is provided with and is communicated with the active chamber that described working hole communicates with described cavity; Described screw plug is provided with and is communicated with the admission chamber that described liquid entering hole communicates with the screw plug inner chamber, and described valve pocket is provided with and is communicated with time sap cavity that described liquid return hole communicates with the valve pocket inner chamber.
Above-mentioned pilot valve, described mangetic core assembly be by the valve rod that is arranged in the described cavity, and be arranged on port outside, described cavity two ends, and under the effect of described actuator, two seals that keep respectively conflicting with described valve rod end are formed; The part that is in described valve pocket inner chamber of described actuator, for head cooperates with described valve pocket inner chamber, afterbody passes described valve pocket and is subjected to described lever operated push rod outward, the end face of described push rod head props up the described seal near described valve pocket, and described actuator also comprises the biased member between the bottom surface that is arranged on described screw plug inner chamber and the close described seal of described screw plug.
Above-mentioned pilot valve is provided with the annular maintainance set that described receiving cavity can communicate with described liquid-through hole of guaranteeing in the described receiving cavity.
Above-mentioned pilot valve, the relevant position between described valve sleeving inner wall and the described push rod afterbody is provided with seal ring, and the relevant position between described valve sleeving inner wall and the described push rod head is provided with seal ring.
Above-mentioned pilot valve, described handle is provided with the handle self-locking device.
Above-mentioned pilot valve, described handle self-locking device is for being hinged on the cam-like handle on the described handle by hinging shaft.
Above-mentioned pilot valve, described handle be provided with tapped hole with the corresponding position of described push rod afterbody, be provided with screw in the described tapped hole, an end of described screw is provided with tightening nut, the other end props up described push rod tail end face under the operation of described handle.
Above-mentioned pilot valve, described admission chamber is formed by the gap between described screw plug and the described middle base opposing end faces, and described time sap cavity is formed by the gap between described valve pocket and the described middle base opposing end faces.
Above-mentioned pilot valve, described seal are spheroid, and described biased member is a spring, are provided with spring seat between described spheroid and the described spring.
Technique scheme of the present utility model has the following advantages compared to existing technology, 1, in the utility model, form receiving cavity between push rod and the valve pocket inner chamber, be communicated with between receiving cavity and the admission chamber by pipeline, highly pressurised liquid that can balance admission chamber place acts on the hydraulic coupling on the mangetic core assembly, required operational torque when reducing operating grip; 2, in the utility model, also be provided with the handle self-locking device on the handle, can guarantee that in the pilot valve operating process, handle stays open or closed condition; 3, in the utility model, admission chamber is formed by the gap between screw plug and the middle base opposing end faces, returns sap cavity and is formed by the gap between valve pocket and the middle base opposing end faces, can be to a certain extent, when cushioning feed liquor or returning liquid, liquid is to the impact of admission chamber or time sap cavity.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the sectional drawing of pilot valve of the present utility model;
Fig. 2 is the sectional view of pilot valve A-A direction of the present utility model;
Fig. 3 is the sectional view of pilot valve B-B direction of the present utility model.
Reference character is expressed as among the figure: 1-valve body, 2-screw plug, 3-spring, 4-spring seat, 5-spheroid, 6-valve rod, 7-middle base, 8-liquid entering hole, 9-valve pocket, 10-maintainance set, 11-push rod, 12-screw, 13-nut, 14-liquid return hole, 15-cam-like handle, 16-handle, 17-working hole, 18-pipeline, 19-liquid-through hole.
Embodiment
As shown in Figure 1 to Figure 3, a kind of pilot valve of present embodiment comprises valve body 1, mangetic core assembly, actuator, and handle 16, form valve pocket in the wherein said valve body 1, form liquid entering hole 8, liquid return hole 14, the working hole 17 that communicates with described valve pocket on described valve body 1 outer wall; Described mangetic core assembly can come and go being arranged in the described valve pocket of moving along described valve body 1 axial direction, described mangetic core assembly coming and going in described valve pocket moved, can alternately block being communicated with between described liquid entering hole 8 and the described working hole 17, and being communicated with between described liquid return hole 14 and the described working hole 17; Described actuator is arranged in the described valve pocket, drives described mangetic core assembly and comes and goes mobile; Described handle 16 is arranged on the described actuator action of control on the described valve body 1; For the highly pressurised liquid at the described liquid entering hole of balance place acts on hydraulic coupling on the described mangetic core assembly, required operational torque when reducing operating grip 16, form receiving cavity between the part that is in described liquid return hole 14 place ends in the described valve pocket of described actuator and the described valve pocket, described valve body is provided with the liquid-through hole 19 that communicates with described receiving cavity, is communicated with between described liquid-through hole 19 and the described liquid entering hole 8 by pipeline 18.In the present embodiment, described valve body comprises the middle base 7 that forms cavity on the axial direction, be arranged at the valve pocket that forms the inner chamber that communicates with described cavity respectively 9 and the screw plug 2 at described middle base 7 two ends, the described inner chamber of the cavity of described middle base 7 and valve pocket 9 and screw plug 2 constitutes described valve pocket, and wherein said middle base 7 is provided with and is communicated with the active chamber that described working hole 17 communicates with described cavity; Described screw plug 2 is provided with and is communicated with the admission chamber that described liquid entering hole 8 communicates with the screw plug inner chamber, and described valve pocket 9 is provided with and is communicated with time sap cavity that described liquid return hole 14 communicates with the valve pocket inner chamber.In the present embodiment, described mangetic core assembly is by the valve rod 6 that is arranged in the described cavity, and is arranged on port outside, described cavity two ends, and under the effect of described actuator, two spheroids 5 that keep respectively conflicting with described valve rod 6 ends are formed; The part that is in described valve pocket inner chamber of described actuator, for head cooperates with described valve pocket inner chamber, afterbody passes the described valve pocket 9 outer push rods 11 that are subjected to described handle 16 operations, the end face of described push rod 11 heads props up the described spheroid 5 near described valve pocket, and described actuator also comprises the spring 3 between the bottom surface that is arranged on described screw plug inner chamber and the close described spheroid 5 of described screw plug.Also be provided with spring seat 4 between described spheroid 5 and the described spring 3.The described receiving cavity of guaranteeing that is provided with annular in the described receiving cavity has the maintainance set 10 that can communicate with described liquid-through hole 19.Relevant position between described valve pocket 9 inwalls and described push rod 11 afterbodys is provided with seal ring, and the relevant position between described valve pocket 9 inwalls and described push rod 11 heads is provided with seal ring.In order to guarantee in the pilot valve operating process, described handle 16 stays open or closed condition, described handle 16 is provided with the handle self-locking device, and in the present embodiment, described handle self-locking device is for being hinged on the cam-like handle 15 on the described handle 16 by hinging shaft.Described handle 16 be provided with tapped hole with the corresponding position of described push rod 11 afterbodys, be provided with screw 12 in the described tapped hole, one end of described screw 12 is provided with tightening nut 13, the other end props up described push rod 11 tail end faces under the operation of described handle 16, because the push rod of producing may be different in size, the setting of described tapped hole and described screw 12, can regulate the gap of described screw 12 end faces and described push rod 11 tail end faces by regulating the position of described screw 12 in described tapped hole, to adapt to various push rods different in size, prevent the push rod tail end and do not reach handle or push rod tail end than lacking than growing and handle being supported into inclination.For to a certain extent, when cushioning feed liquor or returning liquid, liquid is to the impact of admission chamber or time sap cavity, described admission chamber is formed by the gap between described screw plug 2 and described middle base 7 opposing end faces, and described time sap cavity is formed by the gap between described valve pocket 9 and described middle base 7 opposing end faces.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (10)
1. a pilot valve comprises
Valve body (1), described valve body forms valve pocket in (1), forms the liquid entering hole (8), liquid return hole (14), the working hole (17) that communicate with described valve pocket on described valve body (1) outer wall;
Mangetic core assembly, described mangetic core assembly can come and go being arranged in the described valve pocket of moving along described valve body (1) axial direction, described mangetic core assembly coming and going in described valve pocket moved, can alternately block being communicated with between described liquid entering hole (8) and the described working hole (17), and being communicated with between described liquid return hole (14) and the described working hole (17);
Actuator, described actuator is arranged in the described valve pocket, drives described mangetic core assembly and comes and goes mobile;
Handle (16), described handle (16) are arranged on described valve body (1) and go up the described actuator action of control;
It is characterized in that:
Form receiving cavity between the part that is in described liquid return hole (14) place end in the described valve pocket of described actuator and the described valve pocket, described valve body is provided with the liquid-through hole (19) that communicates with described receiving cavity, is communicated with between described liquid-through hole (19) and the described liquid entering hole (8) by pipeline (18).
2. pilot valve according to claim 1, it is characterized in that: described valve body comprises the middle base (7) that forms cavity on the axial direction, be arranged at the valve pocket that forms the inner chamber that communicates with described cavity respectively (9) and the screw plug (2) at described middle base (7) two ends, the described inner chamber of the cavity of described middle base (7) and valve pocket (9) and screw plug (2) constitutes described valve pocket, and wherein said middle base (7) is provided with and is communicated with the active chamber that described working hole (17) communicates with described cavity; Described screw plug (2) is provided with and is communicated with the admission chamber that described liquid entering hole (8) communicates with the screw plug inner chamber, and described valve pocket (9) is provided with and is communicated with time sap cavity that described liquid return hole (14) communicates with the valve pocket inner chamber.
3. pilot valve according to claim 2, it is characterized in that: described mangetic core assembly is by the valve rod (6) that is arranged in the described cavity, and be arranged on described cavity two ends port outsides, under the effect of described actuator, two seals that keep respectively conflicting with described valve rod (6) end are formed; The part that is in described valve pocket inner chamber of described actuator, for head cooperates with described valve pocket inner chamber, afterbody passes the outer push rod (11) that is subjected to described handle (16) operation of described valve pocket (9), the end face of described push rod (11) head props up the described seal near described valve pocket, and described actuator also comprises the biased member between the bottom surface that is arranged on described screw plug inner chamber and the close described seal of described screw plug.
4. according to each described pilot valve among the claim 1-3, it is characterized in that: be provided with the annular retaining cover (10) of guaranteeing that described receiving cavity can communicate with described liquid-through hole (19) in the described receiving cavity.
5. pilot valve according to claim 4, it is characterized in that: the relevant position between described valve pocket (9) inwall and described push rod (11) afterbody is provided with seal ring, and the relevant position between described valve pocket (9) inwall and described push rod (11) head is provided with seal ring.
6. pilot valve according to claim 5 is characterized in that: described handle (16) is provided with the handle self-locking device.
7. pilot valve according to claim 6 is characterized in that: described handle self-locking device is for being hinged on the cam-like handle (15) on the described handle (16) by hinging shaft.
8. according to each described pilot valve among the claim 5-7, it is characterized in that: described handle (16) be provided with tapped hole with the corresponding position of described push rod (11) afterbody, be provided with screw (12) in the described tapped hole, one end of described screw (12) is provided with tightening nut (13), and the other end props up described push rod (11) tail end face under the operation of described handle (16).
9. pilot valve according to claim 8, it is characterized in that: described admission chamber is formed by the gap between described screw plug (2) and described middle base (7) opposing end faces, and described time sap cavity is formed by the gap between described valve pocket (9) and described middle base (7) opposing end faces.
10. pilot valve according to claim 9 is characterized in that: described seal is spheroid (5), and described biased member is spring (3), is provided with spring seat (4) between described spheroid (5) and the described spring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202930372U CN201606325U (en) | 2009-12-21 | 2009-12-21 | Pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202930372U CN201606325U (en) | 2009-12-21 | 2009-12-21 | Pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201606325U true CN201606325U (en) | 2010-10-13 |
Family
ID=42951031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202930372U Expired - Lifetime CN201606325U (en) | 2009-12-21 | 2009-12-21 | Pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201606325U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195765A (en) * | 2013-03-04 | 2013-07-10 | 宁波长壁流体动力科技有限公司 | Hand-operated pilot valve |
| CN107246419A (en) * | 2017-05-14 | 2017-10-13 | 广东庭嘉液压科技有限公司 | A kind of automatic control switch valve and its process |
| CN108963178A (en) * | 2018-08-06 | 2018-12-07 | 宁波商路数据技术有限公司 | A kind of centrifugal priming device |
| CN114673803A (en) * | 2022-03-21 | 2022-06-28 | 北京天玛智控科技股份有限公司 | Water-based pilot valve for mine |
-
2009
- 2009-12-21 CN CN2009202930372U patent/CN201606325U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195765A (en) * | 2013-03-04 | 2013-07-10 | 宁波长壁流体动力科技有限公司 | Hand-operated pilot valve |
| CN103195765B (en) * | 2013-03-04 | 2015-06-24 | 宁波长壁流体动力科技有限公司 | Hand-operated pilot valve |
| CN107246419A (en) * | 2017-05-14 | 2017-10-13 | 广东庭嘉液压科技有限公司 | A kind of automatic control switch valve and its process |
| CN108963178A (en) * | 2018-08-06 | 2018-12-07 | 宁波商路数据技术有限公司 | A kind of centrifugal priming device |
| CN114673803A (en) * | 2022-03-21 | 2022-06-28 | 北京天玛智控科技股份有限公司 | Water-based pilot valve for mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: VALVE MACHINERY GROUP CO., LTD. Free format text: FORMER OWNER: HU BINJIE Effective date: 20120405 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325604 WENZHOU, ZHEJIANG PROVINCE TO: 241100 WUHU, ANHUI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120405 Address after: East Bay Road Wuhu County Wuhu Economic Development Zone Anhui province 241100 No. 1688 Patentee after: Valve Machinery Group Co., Ltd. Address before: 325604 second industrial zone, seven Li port, Zhejiang, Yueqing, China Patentee before: Hu Binjie |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101013 |