CN105156743A - Hydraulic water level control valve - Google Patents
Hydraulic water level control valve Download PDFInfo
- Publication number
- CN105156743A CN105156743A CN201510397042.8A CN201510397042A CN105156743A CN 105156743 A CN105156743 A CN 105156743A CN 201510397042 A CN201510397042 A CN 201510397042A CN 105156743 A CN105156743 A CN 105156743A
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- inlet passage
- medium inlet
- mobile cavity
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
- F16K31/34—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float acting on pilot valve controlling the cut-off apparatus
Abstract
The invention relates to a control valve, in particular to a hydraulic water level control valve. According to the technical solution, the hydraulic water level control valve comprises a valve body and a valve deck connected with the valve body; the valve body is provided with a medium inlet passage and a medium outflow passage perpendicularly communicated with the medium inlet passage; the installation position, of the valve deck, on the valve body is provided with a piston moving cavity in the same direction with the medium inlet passage; the opening position where the medium inlet passage and the medium outflow passage are communicated with each other is provided with a valve clack which makes the medium inlet passage and the medium outflow passage be communicated with each other or closed; a piston in linkage with the valve clack through a valve rod is arranged in the piston moving cavity; a pressure discharge cavity is arranged between the piston and the valve deck; the valve deck is provided with a pressure discharge outlet; a pressure discharge valve is arranged in the pressure discharge outlet; the pressure discharge valve is provided with a floating ball which drives the pressure discharge valve to open or close; an elastic seal assembly is arranged between the piston and the inner wall of the piston moving cavity. The hydraulic water level control valve is good in sealing, not liable to leakage and simple in structure.
Description
Technical field
The present invention relates to a kind of control valve, particularly a kind of hydraulic water level control valve.
Background technique
Hydraulic water level control valve has opens pipeline with the function of controlling water level, to be applicable in industrial and mining enterprise, civil building in various water tower or automatic water supply system.
Traditional hydraulic water level control valve forms primarily of valve body and the valve gap that is connected with valve body, valve body is provided with medium inlet passage and is the medium flow pass of vertical conducting with medium inlet passage, installation place valve body being positioned at valve gap is provided with and medium inlet passage piston mobile cavity in the same way, the opening that medium inlet passage and medium flow out channel conductive is provided with and impels medium inlet passage and medium to flow out channel conductive or closed flap, the piston linked by valve rod with flap is provided with in piston mobile cavity, row pressure chamber is provided with between piston and valve gap, valve gap is provided with row pressure mouth, purge valve is provided with in row pressure mouth, purge valve is provided with the ball float driving purge valve to open or close.Ball float is in the cavity volume of water tower or automatic water supply system, and float on liquid level, when the liquid level in cavity volume is too low, the position that ball float is on liquid level then can be moved thereupon, now, ball float just can drive purge valve, impel the row pressure of row pressure chamber, flap then can remove the shutoff of medium inlet passage and medium flow pass, makes valve opening, external agency enters in cavity volume, keeps the medium in cavity volume to be in the liquid level place of expection.
But flap easily offsets in moving process, the sealing between flap and medium inlet passage is caused to occur leaking; Usually adopt seal ring to implement to seal between the inwall of piston and piston mobile cavity, piston can cause the ring wear at this place, cause the sealing at piston place to be protected after moving for a long time.
Summary of the invention
For the deficiency that prior art exists, the invention provides a kind of good airproof performance, not easily occur leakage, the simple hydraulic water level control valve of structure.
For achieving the above object, the invention provides following technological scheme: a kind of hydraulic water level control valve, the valve gap including valve body and be connected with valve body, valve body is provided with medium inlet passage and is the medium flow pass of vertical conducting with medium inlet passage, installation place valve body being positioned at valve gap is provided with and medium inlet passage piston mobile cavity in the same way, the opening that medium inlet passage and medium flow out channel conductive is provided with and impels medium inlet passage and medium to flow out channel conductive or closed flap, the piston linked by valve rod with flap is provided with in piston mobile cavity, row pressure chamber is provided with between piston and valve gap, valve gap is provided with row pressure mouth, purge valve is provided with in row pressure mouth, purge valve is provided with the ball float driving purge valve to open or close, it is characterized in that: between the inwall of described piston and piston mobile cavity, be provided with elastic packing assembly, the outer circumferential face of piston offers the placed cavity placed for elasticity black box, described elastic packing assembly includes the first elastic ring be connected and the sealing gasket of conflicting with elastic ring, the cross section ovalize of this elastic ring, two locating points that elastic ring includes and the elasticity resistance surface of two arcuations, one end of sealing gasket and the elasticity resistance surface of elastic ring are conflicted, the inwall of the other end and piston mobile cavity is conflicted.
Adopt technique scheme, by elastic packing assembly being set to the first elastic ring be connected and the sealing gasket of conflicting with elastic ring, one end of sealing gasket and elastic ring are conflicted, the inwall of the other end and piston mobile cavity is conflicted, after arranging like this, sealing gasket is made to have enough elasticity conflict power all the time, gluing, sealing closely between the inwall impelling sealing gasket and piston mobile cavity, ensure that the sealing between piston and piston mobile cavity, prevent from revealing, simultaneously two arcuation resistance surfaces of elastic ring and sealing gasket are implemented to conflict, such conflict better effects if, further can ensure that sealing gasket obtains elasticity all the time and conflicts.Rub for a long time between sealing gasket and piston mobile cavity after causing wearing and tearing, because sealing gasket is subject to the conflict of elastic ring all the time, still can keep between the inwall of sealing gasket and piston mobile cavity sealing closely.
The present invention is set to further: one end that sealing gasket and piston mobile cavity inwall are conflicted is cambered surface, and the summit of this cambered surface and the inwall of piston mobile cavity are conflicted and sealed.
Adopt technique scheme, arrange like this and make the sealing between sealing gasket and piston mobile cavity adopt the mode of dot encapsulation, sealing effect is better, can effectively prevent from revealing.
The present invention is further set to: flap is installed with the guide grab extended in medium inlet passage on the end face of medium inlet passage, is provided with sealing gasket and hard sealing block between flap and this guide grab.
Adopt technique scheme, guide grab can implement the effect of guiding to flap, prevent from occurring between flap and medium inlet passage leaking, for the sealing at flap place provides guarantee.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the I portion enlarged diagram of Fig. 1.
Embodiment
As Fig. 1, a kind of hydraulic water level control valve shown in Fig. 2, the valve gap 2 including valve body 1 and be connected with valve body 1, valve body 1 is provided with medium inlet passage 11 and is the medium flow pass 12 of vertical conducting with medium inlet passage 11, installation place valve body 1 being positioned at valve gap 2 is provided with and medium inlet passage 11 piston mobile cavity 13 in the same way, medium inlet passage 11 is provided with the opening of medium flow pass 12 conducting and impels medium inlet passage 11 and medium flow pass 12 conducting or closed flap 3, the piston 5 linked by valve rod 4 with flap 3 is provided with in piston mobile cavity 13, row pressure chamber 14 is provided with between piston 5 and valve gap 2, valve gap 2 is provided with row pressure mouth 21, purge valve 22 is provided with in row pressure mouth 21, purge valve 22 is provided with the ball float 23 driving purge valve 22 to open or close, elastic packing assembly 6 is provided with between the inwall of piston 5 and piston mobile cavity, the outer circumferential face of piston 5 offers the placed cavity 51 placed for elasticity black box 6, elastic packing assembly 6 includes the first elastic ring 61 be connected and the sealing gasket 62 of conflicting with elastic ring 61, the cross section ovalize of this elastic ring 61, two locating points 611 that elastic ring 61 includes and the elasticity resistance surface 612 of two arcuations, one end of sealing gasket 62 and the elasticity resistance surface 612 of elastic ring 61 are conflicted, the inwall of the other end and piston mobile cavity 13 is conflicted.In such scheme, by elastic packing assembly 6 being set to the first elastic ring 61 be connected and the sealing gasket 62 of conflicting with elastic ring 61, one end and the elastic ring 61 of sealing gasket 62 are conflicted, the inwall of the other end and piston mobile cavity 13 is conflicted, after arranging like this, sealing gasket 62 is made to have enough elasticity conflict power all the time, gluing, sealing closely between the inwall impelling sealing gasket 62 and piston mobile cavity 13, ensure that the sealing between piston 5 and piston mobile cavity 13, prevent from revealing, two arcuation resistance surfaces 612 of elastic ring 61 are implemented to conflict with sealing gasket 62 simultaneously, such conflict better effects if, further can ensure that sealing gasket 62 obtains elasticity all the time and conflicts.Rub for a long time between sealing gasket 62 and piston mobile cavity 13 after causing wearing and tearing, because sealing gasket 62 is subject to the conflict of elastic ring 61 all the time, still can keep between the inwall of sealing gasket 62 and piston mobile cavity 13 sealing closely.
Need further illustrate, elastic ring 61 also can be replaced with spring, but the elastic force of spring is difficult to regulation and control, and elastic force is easily lost, thus the present invention preferably the former.
In embodiments of the present invention, in order to further improve the sealing between sealing gasket 62 and piston mobile cavity 13, ensure the sealing between piston 5 and piston mobile cavity 13, one end that sealing gasket 62 and piston mobile cavity 13 inwall are conflicted is cambered surface 621, and the summit of this cambered surface 621 and the inwall of piston mobile cavity 12 are conflicted and sealed.Or replace this cambered surface in wavy sealing surface, making to form Multi-point sealing between sealing gasket 62 and piston mobile cavity 13, is also feasible.
In order to ensure the sealing at flap 3 place, flap 3 is installed with the guide grab 31 extended in medium inlet passage 11 on the end face of medium inlet passage 11, is connected between this guide grab 31 with flap 3 by bolt, also by being welded to connect, is also feasible.And be provided with sealing gasket 32 and hard sealing block 33 between flap 3 and this guide grab 31.
Claims (3)
1. a hydraulic water level control valve, the valve gap including valve body and be connected with valve body, valve body is provided with medium inlet passage and is the medium flow pass of vertical conducting with medium inlet passage, installation place valve body being positioned at valve gap is provided with and medium inlet passage piston mobile cavity in the same way, the opening that medium inlet passage and medium flow out channel conductive is provided with and impels medium inlet passage and medium to flow out channel conductive or closed flap, the piston linked by valve rod with flap is provided with in piston mobile cavity, row pressure chamber is provided with between piston and valve gap, valve gap is provided with row pressure mouth, purge valve is provided with in row pressure mouth, purge valve is provided with the ball float driving purge valve to open or close, it is characterized in that: between the inwall of described piston and piston mobile cavity, be provided with elastic packing assembly, the outer circumferential face of piston offers the placed cavity placed for elasticity black box, described elastic packing assembly includes the first elastic ring be connected and the sealing gasket of conflicting with elastic ring, the cross section ovalize of this elastic ring, two locating points that elastic ring includes and the elasticity resistance surface of two arcuations, one end of sealing gasket and the elasticity resistance surface of elastic ring are conflicted, the inwall of the other end and piston mobile cavity is conflicted.
2. hydraulic water level control valve according to claim 1, is characterized in that: one end that described sealing gasket and piston mobile cavity inwall are conflicted is cambered surface, and the summit of this cambered surface and the inwall of piston mobile cavity are conflicted and sealed.
3. hydraulic water level control valve according to claim 1 and 2, it is characterized in that: described flap is installed with the guide grab extended in medium inlet passage on the end face of medium inlet passage, between flap and this guide grab, be provided with sealing gasket and hard sealing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510397042.8A CN105156743A (en) | 2015-06-30 | 2015-06-30 | Hydraulic water level control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510397042.8A CN105156743A (en) | 2015-06-30 | 2015-06-30 | Hydraulic water level control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105156743A true CN105156743A (en) | 2015-12-16 |
Family
ID=54797711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510397042.8A Pending CN105156743A (en) | 2015-06-30 | 2015-06-30 | Hydraulic water level control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105156743A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027668A (en) * | 2021-03-16 | 2021-06-25 | 北京天地玛珂电液控制系统有限公司 | Hydraulic motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989151A (en) * | 1995-09-20 | 1997-03-31 | Kimitsu Kiko Kk | Water level adjusting valve |
| CN2420098Y (en) * | 2000-02-23 | 2001-02-21 | 黄明通 | Improved oil and pneumatic angular clamp |
| CN201302003Y (en) * | 2008-06-22 | 2009-09-02 | 王运辉 | Bowl-shaped piston water level control valve |
| CN202646769U (en) * | 2012-03-29 | 2013-01-02 | 浙江超达阀门股份有限公司 | Valve seat structure of metal hard seal ball valve with anti-sticking pre-tightening device |
| CN203286012U (en) * | 2013-06-14 | 2013-11-13 | 刘工勤 | Float valve |
-
2015
- 2015-06-30 CN CN201510397042.8A patent/CN105156743A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989151A (en) * | 1995-09-20 | 1997-03-31 | Kimitsu Kiko Kk | Water level adjusting valve |
| CN2420098Y (en) * | 2000-02-23 | 2001-02-21 | 黄明通 | Improved oil and pneumatic angular clamp |
| CN201302003Y (en) * | 2008-06-22 | 2009-09-02 | 王运辉 | Bowl-shaped piston water level control valve |
| CN202646769U (en) * | 2012-03-29 | 2013-01-02 | 浙江超达阀门股份有限公司 | Valve seat structure of metal hard seal ball valve with anti-sticking pre-tightening device |
| CN203286012U (en) * | 2013-06-14 | 2013-11-13 | 刘工勤 | Float valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027668A (en) * | 2021-03-16 | 2021-06-25 | 北京天地玛珂电液控制系统有限公司 | Hydraulic motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151216 |
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| WD01 | Invention patent application deemed withdrawn after publication |