CN201212567Y - Hand pilot valve - Google Patents
Hand pilot valve Download PDFInfo
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- CN201212567Y CN201212567Y CNU2008200882971U CN200820088297U CN201212567Y CN 201212567 Y CN201212567 Y CN 201212567Y CN U2008200882971 U CNU2008200882971 U CN U2008200882971U CN 200820088297 U CN200820088297 U CN 200820088297U CN 201212567 Y CN201212567 Y CN 201212567Y
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- valve body
- pressure
- piston rod
- oil
- pilot valve
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Abstract
The utility model relates to a hand-operated pilot valve, which belongs to the technical field of machinery. The hand-operated pilot valve solves the problems of complex structure, high manufacturing difficulty and poor dustproof properties of the prior hand-operated pilot valve. The hand-operated pilot valve comprises a valve body, a universal joint component is arranged at the top part of the valve body, a handle component is rotationally connected with the universal joint component, an oil feeding cavity, an oil return cavity and a plurality of pressure output cavities are arranged in the valve body, wherein the pressure output cavities are respectively communicated with the oil feeding cavity and the oil return cavity, an oil inlet hole, an oil outlet hole and a plurality of pressure output holes are arranged on the valve body, wherein the oil inlet hole is communicated with the oil feeding cavity, the oil outlet hole is communicated with the oil return cavity, piston rod components are arranged in the pressure output cavities, a pressure piston rod is arranged above the piston rod components, the universal joint component is positioned at the top part of the pressure piston rod, a through-hole is arranged at the side part of each pressure output cavity, a clog is arranged in the though-hole, a plurality of though-holes are arranged at the side part of the oil return cavity, and clogs are arranged in the though-holes. The hand-operated pilot valve has the advantages that the sundries generated during the processing process can be discharged, and the sealing performance is good.
Description
Technical field
The present invention relates to field of mechanical technique, especially relate to a kind of handle pilot valve.
Background technique
Pilot valve is widely used in Hydraulic Field, and in order to improve its service behaviour and to be convenient to fabrication and processing, people have carried out long-term exploration, have proposed various improvement projects.For example, Chinese patent literature discloses a kind of pilot valve [CN200320122465.1], comprises valve body, spool, the one of valve body for breaking; Spool is a groupware type.The switch of the power-on circuit of the electromagnetic coil of driving valve core movement is open in usual.The present invention adopts integral type aluminum alloy valve body structure, and is in light weight, do not have to leak.Easy for installation; Solenoid circuit adopts switch form open in usual, just switches on when having only work, has prevented that coil from causing cause thermal damage because of long-time energising.The somebody has invented a kind of pilot valve [CN200620167407.4], the spool that comprises valve body and one or more two-position three ways, spool integral body is packed in the valve body, the valve pocket of spool is fixedlyed connected with valve body, spool also comprises damping device, push rod, seat valve formula sealing configuration, return spring device, one end of push rod is placed damping device, and the other end acts on the seat valve formula sealing configuration, and the return spring device acts on the seat valve formula sealing configuration.Support by a shuttle bar between two spheroids of seat valve formula sealing configuration, guarantee static single ball sealing constantly.The feed liquor valve seat with return opening that the liquid valve seat cooperates with spheroid and constitute the feed liquor and the liquid return hole of valve, during valve static state one of two mouthfuls with the active chamber communication, formed the threeway function of valve.
Such scheme has improved the service behaviour of pilot valve to a certain extent, but still have following defective: 1, overall structure is comparatively complicated, and manufacture difficulty is big, and the particle of Chan Shenging, foreign material are difficult to get rid of in process of production, whole oil circuit is polluted, influence proper functioning.2, long-term work causes wearing and tearing easily, and structure is not remedied in such wearing and tearing accordingly, must change component and could continue normal the use, has improved user cost, causes the wasting of resources.3, anti-dust performance is relatively poor, sneaks into impurity, dust, dirt in the course of the work easily, influences the proper functioning of pilot valve.
Summary of the invention
The purpose of this utility model is at the problems referred to above, provides a kind of reasonable in design, is easy to manufacturing, the foreign material that produce in the course of working can be discharged stable and reliable working performance, the handle pilot valve of good airproof performance.
For achieving the above object, the utility model has adopted following technical proposal: this handle pilot valve, comprise valve body, top at valve body is provided with cardan universal joint component, Handleset and cardan universal joint component are rotationally connected, it is characterized in that, have oil suction chamber in the described valve body, oil back chamber and several pressure output cavities, the pressure output cavity is connected with oil suction chamber and oil back chamber respectively, on valve body, also be provided with oil inlet hole, oil outlet and several pressure delivery outlets, oil inlet hole is connected with oil suction chamber, oil outlet is connected with oil back chamber, and each pressure delivery outlet is connected with a pressure output cavity respectively, is respectively equipped with the piston rod assembly that control oil suction chamber and pressure output cavity are conducted or end in each pressure output cavity, above piston rod assembly, be provided with the pressure piston bar, above-mentioned cardan universal joint component is positioned at the top of pressure piston bar, and described each pressure output cavity sidepiece has through hole, is provided with obstruction at through hole, sidepiece at oil back chamber has several through holes, is provided with obstruction at through hole.
Handleset can drive cardan universal joint component work, when cardan universal joint component will be wherein a pressure piston bar when pressing down, the pressure piston bar presses down piston rod assembly, and oil suction chamber and pressure output cavity are conducted, and so just can make the pressure delivery outlet output of hydraulic pressure from this pressure output cavity correspondence.Because the pressure output cavity in the utility model and the sidepiece of oil back chamber have been offered through hole, in course of working, just can easily foreign material be discharged like this, guarantee the oil circuit cleaning.Be provided with oil suction chamber, oil back chamber and several pressure output cavities and help flowing smoothly of hydraulic oil, improve working stability.
In above-mentioned handle pilot valve, described pressure piston bar is provided with the jack of the piston rod assembly that is used to pack into, is provided with the variable regulating block in jack.When needs are regulated hydraulic pressure, can realize by changing the variable regulating block.In addition, also can guarantee whole handle pilot valve proper functioning long-term the use when taking place to wear and tear by changing the variable regulating block.
In above-mentioned handle pilot valve, be provided with oil guide pipe between described oil back chamber and the pressure output cavity.At oil back chamber and pressure output cavity the manufacturing that oil guide pipe is convenient to whole valve body is set, discharges the impurity that produces in the manufacture process, guarantee the oil circuit cleaning.
In above-mentioned handle pilot valve, the upper end of described pressure piston bar is provided with the fixing frame that is fixed on the valve body, and the dust-proof cover that covers on the cardan universal joint component periphery is housed on fixing frame.Dust-proof cover is set helps guaranteeing cleaning inside, improve working stability.
In above-mentioned handle pilot valve, be provided with the valve body guard shield that covers in above-mentioned dust-proof cover periphery between described valve body and the Handleset.
In above-mentioned handle pilot valve, the periphery, middle part of described valve body is provided with the protecting cover of tubular.
In above-mentioned handle pilot valve, the piston rod assembly of described valve body comprises a piston rod and is enclosed within the piston seat on piston rod top, between piston seat and valve body, be provided with spring one, one end of spring one acts on the piston seat, the other end acts on the valve body, periphery at piston rod also is with spring two, one end of spring two acts on the piston seat, the other end acts on the piston rod, insert in the jack of pressure piston bar the upper end of above-mentioned piston rod, and the lower end has annular breach and between pressure output cavity and oil suction chamber.
In above-mentioned handle pilot valve, the bottom of described cardan universal joint component is provided with four pressure piston bars.The quantity of four pressure piston bars is provided with as required, and in general its quantity is four.
In above-mentioned handle pilot valve, described pressure piston bar periphery is with one can be with respect to piston rod piston rod guide sleeve in axial sliding, and described piston rod guide sleeve is fixed on the valve body, is provided with seal ring between piston rod guide sleeve and valve body.The piston rod guide sleeve plays leading role to piston rod mobile, and seal ring is used to improve sealing, guarantees the handle pilot valve proper functioning.
In above-mentioned handle pilot valve, be fixed with a variable pressure adjustable cap on the described cardan universal joint component, above-mentioned pressure piston masthead portion roof pressure is on variable pressure adjustable cap.
Compared with prior art, the advantage of this handle pilot valve is: 1, rational in infrastructure, and be easy to manufacturing, and can easily the impurity that produces in the course of working be cleared up away, can guarantee the cleaning of whole oil circuit, improve working stability.2, can come the hydraulic pressure size is changed by changing the variable regulating block, improve the flexibility of using, and when wearing and tearing take place in long-term use, also can guarantee whole handle pilot valve proper functioning by changing the variable regulating block.3, good airproof performance can stop impurity effectively, and the stability of raising work also increases the service life.
Description of drawings
Fig. 1 is the sectional structure schematic representation that the utility model provides.
Fig. 2 be the utility model provide look up structural representation.
Fig. 3 is the stereogram that the utility model provides.
Fig. 4 is an A-A sectional view along the line among Fig. 1.
Fig. 5 is a B-B sectional view along the line among Fig. 1.
The valve body structure schematic representation of the handle pilot valve that Fig. 6 the utility model provides.
Another visual angle structural representation of the valve body of the handle pilot valve that Fig. 7 the utility model provides.
Among the figure, valve body 1, oil suction chamber 11, oil back chamber 12, pressure output cavity 13, oil inlet hole 1a, oil outlet 1b, pressure delivery outlet 1c, Handleset 2, cardan universal joint component 3, piston rod assembly 4, piston rod 41, annular breach 41a, piston seat 42, spring 1, spring 2 44, pressure piston bar 5, piston rod guide sleeve 51, seal ring 52, jack 5a, through hole 6, obstruction 7, variable regulating block 8, oil guide pipe 9, fixing frame 10, dust-proof cover 100, valve body guard shield 110, protecting cover 14, variable pressure adjustable cap 30.
Embodiment
As depicted in figs. 1 and 2, this handle pilot valve is made up of component such as valve body 1, Handleset 2, cardan universal joint component 3, piston rod assemblies 4.Cardan universal joint component 2 is arranged on the top of valve body 1, and Handleset 2 is rotationally connected with cardan universal joint component 3.
As shown in Figure 6 and Figure 7, have oil suction chamber 11, oil back chamber 12 and four pressure output cavities 13 in the valve body 1, pressure output cavity 13 is connected with oil suction chamber 11 and oil back chamber 12 respectively.On valve body 1, also be provided with oil inlet hole 1a, oil outlet 1b and four pressure delivery outlet 1c.Oil inlet hole 1a is connected with oil suction chamber 11, oil outlet 1b is connected with oil back chamber 12, each pressure delivery outlet 1c is connected with a pressure output cavity 13 respectively, is respectively equipped with the piston rod assembly 4 that control oil suction chamber 11 and pressure output cavity 13 are conducted or end in each pressure output cavity 13.
As shown in Figure 1, be provided with pressure piston bar 5 above piston rod assembly 4, be fixed with a variable pressure adjustable cap 30 on the cardan universal joint component 3, above-mentioned pressure piston bar 5 top roof pressures are on variable pressure adjustable cap 30.As shown in Figure 4 and Figure 5, each pressure output cavity 13 sidepiece has through hole 6, is provided with at through hole 6 and stops up 7, has several through holes 6 at the sidepiece of oil back chamber 12, is provided with at through hole 6 and stops up 7.Because the pressure output cavity in the utility model and the sidepiece of oil back chamber have been offered through hole, in course of working, just can easily foreign material be discharged like this, guarantee the oil circuit cleaning.When assembling, will stop up 7 and be fixed in the through hole 6, realize sealing.In general, the obstruction 7 here is in case i.e. no longer dismounting after stifled the going up.Be provided with oil guide pipe 9 between oil back chamber 12 and the pressure output cavity 13.Oil guide pipe 9 is set between oil back chamber 12 and pressure output cavity 13 also is for the ease of the impurity that produces in course of working and discharge, guarantee the oil circuit cleaning.
As illustrated in fig. 1 and 2, pressure piston bar 5 is provided with the jack 5a of the piston rod assembly 4 that is used to pack into, is provided with variable regulating block 8 in jack 5a.Variable regulating block 8 is set is in order coming the hydraulic pressure size is changed, improve the flexibility of using, and also can guarantee whole handle pilot valve proper functioning when wearing and tearing take place by changing the variable regulating block long-term the use by changing the variable regulating block.
The upper end of pressure piston bar 5 is provided with the fixing frame 10 that is fixed on the valve body 1, and the dust-proof cover 100 that covers on cardan universal joint component 3 peripheries is housed on fixing frame 10.Be provided with the valve body guard shield 110 that covers in above-mentioned dust-proof cover 100 peripheries between valve body 1 and the Handleset 2.Periphery, valve body 1 middle part is provided with the protecting cover 14 of tubular.By being provided with dust-proof cover 100 and valve body guard shield 110, can prevent effectively that dust, impurity etc. from entering in the valve body.
Piston rod assembly 4 comprises a piston rod 41 and is enclosed within the piston seat 42 on piston rod 41 tops, between piston seat 42 and valve body 1, be provided with spring 1, one end of spring 1 acts on the piston seat 42, the other end acts on the valve body 1, periphery at piston rod 41 also is with spring 2 44, one end of spring 2 44 acts on the piston seat 42, the other end acts on the piston rod 41, insert in the jack 5a of pressure piston bar 5 upper end of above-mentioned piston rod 41, and the lower end has annular breach 41a and between pressure output cavity 13 and oil suction chamber 11.In the present embodiment, pressure piston bar 5 peripheries are with one can be with respect to piston rod 41 piston rod guide sleeve 51 in axial sliding, and piston rod guide sleeve 51 is fixed on the valve body 1, is provided with seal ring 52 between piston rod guide sleeve 51 and valve body 1.When piston rod 41 was pressed downward, annular breach 41a can be communicated with pressure output cavity 13 and oil suction chamber 11, with the work of control handle pilot valve.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used valve body 1 morely, oil suction chamber 11, oil back chamber 12, pressure output cavity 13, oil inlet hole 1a, oil outlet 1b, pressure delivery outlet 1c, Handleset 2, cardan universal joint component 3, piston rod assembly 4, piston rod 41, annular breach 41a, piston seat 42, spring 1, spring 2 44, pressure piston bar 5, piston rod guide sleeve 51, seal ring 52, jack 5a, through hole 6, stop up 7, variable regulating block 8, oil guide pipe 9, fixing frame 10, dust-proof cover 100, valve body guard shield 110, protecting cover 14, variable pressure adjustable cap 30 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (10)
1. handle pilot valve, comprise valve body (1), be provided with cardan universal joint component (2) at the top of valve body (1), Handleset (2) is rotationally connected with cardan universal joint component (3), it is characterized in that, have oil suction chamber (11) in the described valve body (1), oil back chamber (12) and several pressure output cavities (13), pressure output cavity (13) is connected with oil suction chamber (11) and oil back chamber (12) respectively, on valve body (1), also be provided with oil inlet hole (1a), oil outlet (1b) and several pressure delivery outlets (1c), oil inlet hole (1a) is connected with oil suction chamber (11), oil outlet (1b) is connected with oil back chamber (12), each pressure delivery outlet (1c) is connected with a pressure output cavity (13) respectively, in each pressure output cavity (13), be respectively equipped with the piston rod assembly (4) that control oil suction chamber (11) and pressure output cavity (13) are conducted or end, be provided with pressure piston bar (5) in the top of piston rod assembly (4), above-mentioned cardan universal joint component (3) is positioned at the top of pressure piston bar (5), described each pressure output cavity (13) sidepiece has through hole (6), be provided with obstruction (7) at through hole (6), sidepiece at oil back chamber (12) has several through holes (6), is provided with obstruction (7) at through hole (6).
2. handle pilot valve according to claim 1 is characterized in that, described pressure piston bar (5) is provided with the jack (5a) of piston rod assembly (4) that are used to pack into, is provided with variable regulating block (8) in jack (5a).
3. handle pilot valve according to claim 1 is characterized in that, is provided with oil guide pipe (9) between described oil back chamber (12) and the pressure output cavity (13).
4. according to claim 1 or 2 or 3 described handle pilot valves, it is characterized in that, the upper end of described pressure piston bar (5) is provided with the fixing frame (10) that is fixed on the valve body (1), is equipped with to cover on the peripheral dust-proof cover (100) of cardan universal joint component (3) on fixing frame (10).
5. handle pilot valve according to claim 4 is characterized in that, is provided with between described valve body (1) and the Handleset (2) to cover in the peripheral valve body guard shield (110) of above-mentioned dust-proof cover (100).
6. handle pilot valve according to claim 4 is characterized in that, the periphery, middle part of described valve body is provided with the protecting cover (14) of tubular.
7. handle pilot valve according to claim 4, it is characterized in that, the piston rod assembly of described valve body (4) comprises a piston rod (41) and is enclosed within the piston seat (42) on piston rod (41) top, between piston seat (42) and valve body (1), be provided with spring one (43), one end of spring one (43) acts on the piston seat (42), the other end acts on the valve body (1), also be with spring two (44) in the periphery of piston rod (41), one end of spring two (44) acts on the piston seat (42), the other end acts on the piston rod (41), insert in the jack (5a) of pressure piston bar (5) upper end of above-mentioned piston rod (41), the lower end have annular breach (41a) and be positioned at pressure output cavity (13) and oil suction chamber (11) between.
8. handle pilot valve according to claim 4 is characterized in that, the bottom of described cardan universal joint component (3) is provided with four pressure piston bars (5).
9. handle pilot valve according to claim 4, it is characterized in that, described pressure piston bar (5) periphery is with one can be with respect to piston rod (41) piston rod guide sleeve (51) in axial sliding, described piston rod guide sleeve (51) is fixed on the valve body (1), is provided with seal ring (52) between piston rod guide sleeve (51) and valve body (1).
10. handle pilot valve according to claim 4 is characterized in that, is fixed with a variable pressure adjustable cap (30) on the described cardan universal joint component (3), and above-mentioned pressure piston bar (5) top roof pressure is on variable pressure adjustable cap (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200882971U CN201212567Y (en) | 2008-06-10 | 2008-06-10 | Hand pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200882971U CN201212567Y (en) | 2008-06-10 | 2008-06-10 | Hand pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201212567Y true CN201212567Y (en) | 2009-03-25 |
Family
ID=40496740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200882971U Expired - Lifetime CN201212567Y (en) | 2008-06-10 | 2008-06-10 | Hand pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201212567Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303088B (en) * | 2008-06-10 | 2011-01-19 | 浙江苏强格液压有限公司 | Handle pilot valve |
-
2008
- 2008-06-10 CN CNU2008200882971U patent/CN201212567Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303088B (en) * | 2008-06-10 | 2011-01-19 | 浙江苏强格液压有限公司 | Handle pilot valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090325 Effective date of abandoning: 20080610 |