CN201382196Y - Shaft-used piston-type fluid control valve - Google Patents
Shaft-used piston-type fluid control valve Download PDFInfo
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- CN201382196Y CN201382196Y CN200820054007U CN200820054007U CN201382196Y CN 201382196 Y CN201382196 Y CN 201382196Y CN 200820054007 U CN200820054007 U CN 200820054007U CN 200820054007 U CN200820054007 U CN 200820054007U CN 201382196 Y CN201382196 Y CN 201382196Y
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- valve
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- piston
- active chamber
- exocoel
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Abstract
A shaft-used piston-type fluid control valve can form a check valve, a slow-closing water pump overwater bottom valve, a ball cock, a stop valve, a reducing valve, a relief valve, or valves with other functions, and mainly comprises a valve body (1), a valve cap (2), pistons (5) and an intercepter plate (6), wherein, the pistons (5) are installed on a guiding piston rod sleeve (3) of the valve cap, connected with the same piston rod (4), and vertically separated from each other in the axial direction; the external diameter of the pistons (5) is reduced to a certain extent compared with the size of the internal diameter of a herringbone sealing piece (7); the circumferential lateral surfaces of the pistons (5) fit with the herringbone sealing piece (7) on the valve in a sliding manner; the lower end surface of the intercepter plate (6) fits with a pipe wall hole (8) formed inside the valve body so as to form an intercepting port; the pistons (5) divide the valve into a control chamber (9) and an outer cavity (10) of a work chamber; and the control chamber (9) of the valve, the outer cavity (10) of the work chamber and an inner cavity (11) of the work chamber are connected with a spherical valve or an auxiliary valve through auxiliary pipes in different forms so as to form the valves with a plurality of different functions. The shaft-used piston-type fluid control valve has the advantages of structure simplification, strong universality, flexible valve opening and closing, good leak tightness, no leakage and reliable operation; and the difficulties in maintenance and repair can be reduced. Moreover, one valve can be used for two purposes or a plurality of purposes.
Description
Technical field:
The utility model relates to a kind of hydraulic control valve, particularly axle piston type control valve for fluids.
Background technique:
Existing hydraulic control valve control chamber 1 is with O type circle 3 (referring to accompanying drawings 15) or diaphragm 4 (referring to accompanying drawing 16) with active chamber 2 segregation methods; The guiding position of spool 5 (referring to accompanying drawing 15 and 16) was head piece axle sleeve guiding 6 (referring to accompanying drawings 18) or valve body top axle sleeve guiding 7 (referring to accompanying drawings 17).O type circle 3 and diaphragm 4 all are the model specification of producer separately, can only be provided by producer separately in case damage.The guiding position was a head piece axle sleeve guiding 6, and the flow resistance of this kind form pilot valve is big; Valve body tip position axle sleeve guiding 7 has solved the big problem of flow resistance, but spool 5 is safeguarded and will be dismantled axle sleeve during maintenance, make spool 5 safeguard and maintenance very inconvenient.No matter it is O type circle 1 or diaphragm 2 that control chamber 1 and active chamber 2 are separated what use, all need use Returnning spring 8 (referring to accompanying drawing 15 and 16), make before the valve with valve after pressure difference big, so the resistance coefficient of valve is big.
The model utility content:
The purpose of this utility model is to overcome the drawback of above-mentioned valve, uses normal man's font Sealing, and guideway is installed on the valve gap, and maintenance and maintenance are very convenient.
Technical solution of the present utility model is that axle use the piston type control valve for fluids, mainly is made of valve body, valve gap and the piston that is loaded in the valve, it is characterized in that: comprise and be connected in upper and lower piston that separates of same piston rod and intercepter plate; The valve gap guide piston bar cover in piston rod upper and lower when motion is installed on the valve gap top and extends downwards on the position of certain distance; Piston external diameter dwindles certain size according to chevron shaped inner seal diameter size, and piston circumference side coincide with the chev(e)ron seal part slip that is installed on the valve, and the pipe tap tone in intercepter plate lower end surface and the valve body is closed and constituted the mouth that dams; The piston separator valve is control chamber and active chamber exocoel, and the control chamber of valve and active chamber exocoel, active chamber inner chamber are connected by auxilliary pipe.This is a basic structure of the present utility model.
Spool use the piston type control valve for fluids according to what pipe laying connected different formation difference in functionalitys of form that control chamber and active chamber use.
(1) auxilliary Guan Jingyi ball valve connects control chamber and active chamber exocoel, then constructs safety check;
(2) auxilliary Guan Jingyi ball valve connects control chamber and active chamber exocoel, then constructs Slow Close formula water pump bottom valve waterborne;
(3) control chamber is connected through small floating ball valve and active chamber exocoel by auxilliary pipe, then constructs float valve;
(4) control chamber connects active chamber inner chamber, exocoel by 1 auxilliary Guan Jingyi tee ball valve respectively through two auxilliary pipes, then constructs stop valve;
(5) control chamber is externally connected by 2 auxilliary pipes, and wherein 1 connects the active chamber exocoel through a pilot valve, and 1 connects the active chamber inner chamber through a ball valve in addition, then constructs reduction valve;
(6) control chamber is externally connected by 2 auxilliary pipes, and wherein 1 connects the active chamber inner chamber through a pilot valve, and 1 connects the active chamber exocoel through a ball valve in addition, then constructs pressure relief valve;
Description of drawings:
Figure 15 is the hydraulic control valve of existing use O type circle.
Figure 16 is the hydraulic control valve of existing use diaphragm.
Figure 17 is the hydraulic control valve of existing use valve body top axle sleeve guiding.
Figure 18 is the existing hydraulic control valve that used head piece axle sleeve guiding.
Fig. 1 is a basic structure I schematic representation of the present utility model;
Fig. 2 is a basic structure II schematic representation of the present utility model;
Fig. 3 is check valve structure figure of the present utility model, adopts basic structure I;
Fig. 4 is check valve structure figure of the present utility model, adopts basic structure II;
Fig. 5 is a Slow Close formula water pump of the present utility model bottom valve waterborne, adopts basic structure I;
Fig. 6 is a Slow Close formula water pump of the present utility model bottom valve waterborne, adopts basic structure II;
Fig. 7 is floating ball valve structure figure of the present utility model, adopts basic structure I;
Fig. 8 is floating ball valve structure figure of the present utility model, adopts basic structure II;
Fig. 9 is stop valve structure figure of the present utility model, adopts basic structure I;
Figure 10 is stop valve structure figure of the present utility model, adopts basic structure II;
Figure 11 is structure of relief pressure valve figure of the present utility model, adopts basic structure I;
Figure 12 is structure of relief pressure valve figure of the present utility model, adopts basic structure II;
Figure 13 is a pressure relief valve structural drawing of the present utility model, adopts basic structure I;
Figure 14 is a pressure relief valve structural drawing of the present utility model, adopts basic structure II;
Embodiment:
The utility model further specifies as follows in conjunction with specific embodiments referring to accompanying drawing:
The utility model axle piston type control valve for fluids mainly is made of with intercepter plate 6 valve body 1, valve gap 2 and the same piston rod 4 axially upper and lower pistons that separate 5 that are connected that are installed on the valve gap guide piston bar cover 3; Piston external diameter dwindles certain size according to chevron shaped inner seal diameter size, and the chev(e)ron seal part 7 on piston circumference side and the valve slides and coincide, and the tube wall aperture 8 in intercepter plate lower end surface and the valve body coincide and constitutes the mouth that dams; The piston separator valve is control chamber 9 and active chamber exocoel 10, and the control chamber of valve and active chamber exocoel 10, active chamber inner chamber 11 are connected the valve that ball valve or Auxiliary valves constitute multiple difference in functionality by multi-form auxilliary pipe: safety check, Slow Close formula water pump bottom valve waterborne, float valve, stop valve, reduction valve, pressure relief valve, etc. the valve of other functions.
It is through-type that the utility model has two kinds of basic structure: basic structure I, referring to accompanying drawing 1; Basic structure II is the Y type, referring to accompanying drawing 2.
Owing to adopt the different Placements of basic structure I, II and auxilliary pipe, axle can constitute the valve of multiple difference in functionality with the piston type control valve for fluids: safety check, Slow Close formula water pump bottom valve waterborne, float valve, stop valve, reduction valve, pressure relief valve, etc. the valve of other functions.
Embodiment 1, and the utility model axle is a safety check with the piston type control valve for fluids, adopts basic structure I, the basic structure II shown in the accompanying drawing 2 shown in the accompanying drawing 1, connects control chamber 9 and active chamber exocoel 10 by auxilliary Guan Jingyi ball valve, referring to accompanying drawing 3,4.
Its working principle: when liquid when active chamber inner chamber 11 flows to active chamber exocoel 10, the liquid in the control chamber 9 flow out through auxilliary pipe 13 from ball valve 12, valve is opened; When liquid when active chamber exocoel 10 flows to the strong inner chamber 11 of work, liquid flows into control chambers 9 from auxilliary pipe 13 through ball valve 12, valve begins to cut out, but the time that valve cuts out by the aperture decision of ball valve 12, ball valve 12 apertures are more little, closing velocity is slow more, otherwise fast more.Therefore the size of aperture of adjusting ball valve 12 is with regard to the closing velocity of controllable valve, thereby the water hammer can eliminate valve effectively and cut out the time reaches the protection to pipe network.
Its working principle: owing to the effect of negative pressure, liquid flows to active chamber exocoel 10 from active chamber inner chamber 11 after water pump opens pump, and through auxilliary pipe 13 outflows, valve is opened the liquid in the control chamber 9 from ball valve 12; Liquid flows to the strong inner chamber 11 of work from active chamber exocoel 10 when the water pump termination of pumping, and liquid flows into control chamber from auxilliary pipe 13 through ball valve 12, and valve begins to cut out, but the time that valve cuts out is by the aperture decision of ball valve 12, ball valve 12 apertures are more little, and closing velocity is slow more, otherwise fast more.Therefore the size of aperture of adjusting ball valve 12 is with regard to the closing velocity of controllable valve, thus the water hammer when eliminating valve effectively and closing, and keep negative pressure in the pipeline, water pump can effectively be opened.
Its working principle: liquid flows to active chamber inner chamber 11 from active chamber exocoel 10, and the liquid in the control chamber 9 flows out through the small floating ball valve through auxilliary pipe, makes the fluid pressure of active chamber exocoel 10 be higher than the pressure of control chamber 9, and valve is opened; When the liquid level in the pond rises by the position of to pond ball float 15, buoyancy function makes small floating ball valve 14 close, the fluid pressure of active chamber exocoel 10 is back in the control chamber 9, make active chamber exocoel 10 identical with the pressure difference of control chamber 9, valve cuts out under the effect of spool deadweight, liquid no longer enters in the pond, reaches the purpose of control liquid level.
Its working principle: liquid flows to active chamber exocoel 10 from active chamber inner chamber 11, control chamber 9 is communicated with active chamber inner chamber 11 when the handle of ball valve 16 places 90 to spend, disconnect with active chamber exocoel 10, because of the area of piston 5 areas in the control chamber 9 greater than intercepter plate 6, piston 5 promotion intercepter plates 6 move down with tube wall aperture 8 and coincide, and valve is closed; Control chamber 9 is communicated with active chamber exocoel 10 when the handle of ball valve 16 places 180 to spend, disconnect with active chamber inner chamber 11, fluid pressure in the control chamber 9 is released to active chamber exocoel 10, the fluid pressure of active chamber inner chamber 11 promotes intercepter plate 6 makes liquid flow to active chamber exocoel 10, opening of valves from active chamber inner chamber 11.At opening state such as pipe network liquid appears when active chamber exocoel 10 flows to the situation of active chamber inner chamber 11, control chamber 9 is communicated with at this moment with active chamber exocoel 10, fluid pressure flows into control chamber 9, because of the area of piston 5 areas in the control chamber 9 greater than intercepter plate 6, piston 5 promotes intercepter plate 6 and moves down with tube wall aperture 8 identical, valve is closed, and makes the hole have check function with piston type control valve for fluids stop valve.
Its working principle: liquid flows to active chamber exocoel 10 from active chamber inner chamber 11, the handle of ball valve 20 places opening state, control chamber 9 is communicated with active chamber inner chamber 11, by auxilliary pipe 21, pilot valve 22, auxilliary pipe 23 connects with active chamber exocoel 10, pilot valve 22 will turn down its aperture when the pressure of active chamber exocoel 10 increases, make the pressure in the control chamber 9 also increase, because of the area of piston 5 areas in the control chamber 9 greater than intercepter plate 6, piston 5 promotes intercepter plate 6 and moves down, the flow of flowing pipe pit aperture is reduced, the pressure of active chamber exocoel 10 decreases, and realizes the purpose of decompression.
Its working principle: liquid flows to active chamber inner chamber 11 from active chamber exocoel 10, the handle of ball valve 25 places opening state, control chamber 9 is communicated with active chamber exocoel 10, by auxilliary pipe 26, pilot valve 27, auxilliary pipe 28 connects with active chamber inner chamber 11, pilot valve 27 will be opened its aperture when the pressure of active chamber exocoel 10 increases to setting value, make the pressure in the control chamber 9 reduce, because of the area of piston 5 areas in the control chamber 9 greater than intercepter plate 6, piston 5 promotes intercepter plate 6 and moves up, valve is opened, the pressure of active chamber exocoel 10 decreases, and realizes the purpose of pressure release.
The utility model axle is with its advantage of piston-type fluid control valve, the upper and lower motion of piston The time to be mated the seal that is installed on the valve be chevron shaped seal, chevron shaped seal is being subjected to After wearing and tearing, can remedy voluntarily damaged part, therefore need not regular replacing seal and safeguard Maintenance, the maintenance that has greatly reduced valve compared in the normal operation of valve with existing hydraulic control valve Number of times and time, the service life of having improved to a great extent valve. Adopt chevron shaped seal, Piston external diameter dwindles certain size according to chevron shaped inner seal diameter size, makes chevron shaped seal Only when starting working, control chamber just begins sealing, thereby so that the engaging pressure of valve is very little, Need not spring reset when therefore valve cuts out, compare its engaging pressure with existing hydraulic control valve Little, flow resistance coefficient is little. , greatly saved to make and used because of its designs simplification from manufacture view Material is during worker.
Claims (6)
1, use the piston type control valve for fluids for a kind of, mainly constitute, it is characterized in that by valve body, valve gap and the piston that is loaded in the valve:
(1) comprises and be connected in upper and lower piston that separates of same piston rod and intercepter plate;
(2) the valve gap guide piston bar cover in piston rod upper and lower when motion is installed on the valve gap top and extends downwards on the position of certain distance;
(3) piston external diameter dwindles certain size according to chevron shaped inner seal diameter size, and piston circumference side coincide with the chev(e)ron seal part slip that is installed on the valve, and the pipe tap tone in intercepter plate lower end surface and the valve body is closed and constituted the mouth that dams;
(4) control chamber of valve and active chamber connect via auxilliary pipe.
2, axle according to claim 1 is used the piston type control valve for fluids, it is characterized in that connecting control chamber and active chamber exocoel by auxilliary Guan Jingyi ball valve.
3, axle according to claim 1 is used the piston type control valve for fluids, it is characterized in that control chamber is connected through float valve and active chamber exocoel by auxilliary pipe.
4, axle according to claim 1 is used the piston type control valve for fluids, it is characterized in that control chamber connects active chamber inner chamber, exocoel by an auxilliary Guan Jingyi tee ball valve respectively through two auxilliary pipes.
5, axle according to claim 1 use the piston type control valve for fluids, it is characterized in that control chamber is externally connected by 2 auxilliary pipes, and wherein 1 connects the active chamber exocoel through a pilot valve, other 1 connect the active chamber inner chamber through a ball valve.
6, axle according to claim 1 use the piston type control valve for fluids, it is characterized in that control chamber is externally connected by 2 auxilliary pipes, and wherein 1 connects the active chamber inner chamber through a pilot valve, other 1 connect the active chamber exocoel through a ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820054007U CN201382196Y (en) | 2008-08-07 | 2008-08-07 | Shaft-used piston-type fluid control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820054007U CN201382196Y (en) | 2008-08-07 | 2008-08-07 | Shaft-used piston-type fluid control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382196Y true CN201382196Y (en) | 2010-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820054007U Expired - Fee Related CN201382196Y (en) | 2008-08-07 | 2008-08-07 | Shaft-used piston-type fluid control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382196Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343826A (en) * | 2013-07-05 | 2013-10-09 | 天津百利展发集团有限公司 | Novel check valve |
-
2008
- 2008-08-07 CN CN200820054007U patent/CN201382196Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343826A (en) * | 2013-07-05 | 2013-10-09 | 天津百利展发集团有限公司 | Novel check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20130807 |