WO2015161741A1 - 一种分导活塞式阀门 - Google Patents

一种分导活塞式阀门 Download PDF

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Publication number
WO2015161741A1
WO2015161741A1 PCT/CN2015/076261 CN2015076261W WO2015161741A1 WO 2015161741 A1 WO2015161741 A1 WO 2015161741A1 CN 2015076261 W CN2015076261 W CN 2015076261W WO 2015161741 A1 WO2015161741 A1 WO 2015161741A1
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Prior art keywords
piston
chamber
split
valve
pipe
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PCT/CN2015/076261
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English (en)
French (fr)
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张未鸣
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张未鸣
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Publication of WO2015161741A1 publication Critical patent/WO2015161741A1/zh

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    • 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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
    • F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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

Definitions

  • the invention relates to the field of valves, in particular to a split piston type valve.
  • the split piston valve is used to control the fluid medium in the pipeline.
  • the pilot valve on the market uses the pilot hole on the opening and closing pilot valve to change the pressure difference between the upper and lower parts of the main valve partition to realize the opening and closing action of the valve. Due to the structural limitation, the pilot valve usually closes faster than the opening speed. The pilot hole on the external force opening and closing pilot valve cannot be synchronized with the opening and closing of the valve, which affects the control precision of the control signal to the valve opening and closing.
  • the technical problem to be solved by the present invention is to provide a split-piston type valve, the closing speed and the opening speed of the split-piston type valve tend to be the same, and the external force drives the upper and lower movements of the split piston and the opening and closing of the valve.
  • the movements tend to be synchronized and the cost is low.
  • a split-piston valve includes an upper valve body, a lower valve body, a partition member, an inlet pipe, and an outlet pipe.
  • the partial pilot piston valve comprises a main valve composed of an upper valve body and a lower valve body and a split guide valve;
  • the main valve comprises an inlet pipe, a branch outlet, an outlet pipe, a nozzle, an A chamber, a B chamber, a partition, a B channel and a branch pipe; the partition is matched with the nozzle, and the partition is located in the chamber A and Between room B and room A
  • the chamber B is not in communication, the chamber A is in communication with the inlet pipe, the outlet pipe, and the nozzle, the chamber B is in communication with the channel B, and the inlet pipe and the branch port located on the inlet pipe are located at the lower valve a position of the body, the branch pipe is located at the upper valve body position, and the branching port on the inlet pipe is in communication with the branch pipe;
  • the split valve includes a piston chamber and a split piston with a seal ring, wherein the piston chamber can be placed therein to move up and down, and the piston chamber is provided with a water inlet and a water outlet.
  • the upper opening of the piston chamber is a water outlet, the water outlet is located between the water inlet and the water outlet, and the B channel connects the chamber B with the water outlet on the piston chamber, and the inner wall of the piston chamber is provided with a limited platform, and the piston is disposed on the piston.
  • the sealing ring forms a communication chamber between the partial piston and the inner wall of the piston chamber near the inlet, the position and the size of the sealing ring and the limiting platform are matched, and the movement of the partial piston is controlled by an external force.
  • the partial piston is provided with two sealing rings, and the inner wall of the piston cavity is provided with two limiting platforms.
  • the space formed between the upper and lower sealing rings and the inner wall of the piston chamber adjacent to the water inlet is a communication chamber.
  • the partial piston is provided with a sealing ring, and the inner wall of the piston cavity is provided with a limiting platform.
  • the sealing ring is one and the limiting platform is also one, the space formed between the sealing ring and the inner wall of the lower piston chamber adjacent to the inlet portion is a communication chamber.
  • the split piston is integrally formed with the seal ring.
  • the seal ring is sleeved over the split piston.
  • a filter screen and an opening gasket are disposed between the branch guide and the branch pipe, and the upper and lower positions of the screen and the opening gasket are interchangeable.
  • the upper and lower positions of the filter screen and the perforated gasket that is, the filter screen can be placed on the top, the perforated gasket is on the bottom, or the perforated gasket is on the upper side, and the filter screen is on the bottom.
  • a reverse pulse passage to which a blind hole device is connected is provided on the chamber B.
  • the inlet pipe is provided with a first push-in fitting.
  • the reverse pulse passage is provided with a second push-in fitting.
  • the partitioning member is a partitioning diaphragm or a separating piston.
  • the split piston valve of the present invention is used to control a fluid medium in a line, which is a liquid or a gas.
  • the structure of the split piston valve of the invention can make the opening and closing speed of the valve tend to be uniform, and the external force driving the upper and lower movements of the split piston and the opening and closing action of the valve tend to be synchronized. Since the partial piston valve has high tolerance to impurities contained in the fluid medium, the opening speed and the closing speed tend to be consistent, so the performance index is good.
  • the split piston valve of the present invention comprises only the upper valve body, the lower valve body and the partial piston in the upper valve body except for the partition member (even for better).
  • the effect is that there are only five parts added to the perforated gasket and filter.
  • the matching precision of the three parts is also very low.
  • the three parts are injection molded with a pair of molds, and the sample has passed the 1MPa water pressure test. Therefore, the split piston type valve of the present invention has a simple structure, few parts, and easy assembly, so the cost is very low.
  • Figure 1 is a schematic view of the split piston valve closed when the separator is attached to the nozzle.
  • the inner wall of the piston chamber is provided with two limiting platforms
  • the partial piston is provided with two sealing rings integrally formed with the partial guiding piston
  • the separating member is a separating diaphragm.
  • Fig. 2 is a schematic view showing the split piston valve opened and the partition member separated from the nozzle.
  • the inner wall of the piston chamber is provided with two limiting platforms
  • the partial piston is provided with two sealing rings sleeved on the partial guiding piston
  • the separating member is a separating membrane.
  • Fig. 3 is a schematic view showing the case where the piston valve is closed and the partition member is fitted to the nozzle.
  • the inner wall of the piston chamber is provided with a limiting platform, and the partial piston is provided with a sealing ring integrally formed with the partial guiding piston.
  • the partition is a separating piston.
  • Fig. 4 is a schematic view showing the case where the piston valve is opened and the partition is separated from the nozzle.
  • the inner wall of the piston chamber is provided with a limiting platform
  • the partial piston is provided with a sealing ring sleeved on the partial guiding piston
  • the separating member is a separating piston.
  • Figure 5 is a schematic view of the split piston valve closed when the separator is attached to the nozzle.
  • the inner wall of the piston chamber is provided with two limiting platforms, and a filter screen and an opening gasket are arranged between the branch pipe of the upper valve body and the branch port on the inlet pipe of the lower valve body.
  • Fig. 6 is a schematic view showing the split piston valve opened and the partition member separated from the nozzle.
  • the inner wall of the piston chamber is provided with a limiting platform, and a filter screen and an opening gasket are arranged between the branch pipe of the upper valve body and the branching port on the inlet pipe of the lower valve body.
  • Figure 6A is a schematic illustration of another embodiment of Figure 6.
  • Figure 7 is a schematic view of a prior art pilot valve, in which the separator is a separator diaphragm.
  • Figure 8 is a schematic view of a prior art pilot valve in which the divider is a split piston.
  • the inlet pipe 6 of the main valve 2 on which the first push-in fitting 21 is disposed is filled with pressurized water and a reverse pulse provided with the second push-in fitting 21A.
  • the blind hole device 11 such as a pressure gauge, an automatic control device, etc.
  • the split piston 14 on the split valve 12 can be moved up and down in the piston chamber 13 under the control of the external force 22, and the split piston 14
  • There are two sealing rings 15, 15A, and two limiting platforms 20, 20A are arranged on the inner wall of the piston chamber 13.
  • the first limiting platform 20 is located between the water outlet 19 and the water outlet 23, and the second limiting platform 20A is located.
  • the position and size of the first sealing ring 15 and the second sealing ring 15A match the positions and sizes of the first limiting platform 20 and the second limiting platform 20A.
  • Guided live A communication chamber 16 is formed between the first seal ring 15 and the second seal ring 15A on the plug 14 and the inner wall of the piston chamber 13 near the end of the water inlet port 18.
  • the water in the inlet pipe 6 flows through the nozzle 8 to the outlet pipe 7, and the split piston valve 1 is in an open state (see Fig. 2).
  • the water outlet 23 communicates with the water inlet 18, and the water in the inner portion of the inlet pipe 6 enters the B chamber 4, B from the branch port 24, the branch pipe 17, the water inlet 18, the communication chamber 16, the water outlet 23, and the B channel 9. 4 and the pressure in the blind hole device 11 on the reverse pulse path 10 is at a high level, and the pressure is equal to the pressure in the inlet pipe 6.
  • the impurities in the water are blocked by the screen 25 and cannot enter the split valve 12. in. Since the screen 25 is close to the inlet pipe 6, when the sub-piston valve 1 is in operation, the water flowing in the inlet pipe 6 has a flushing and cleaning action on the screen 25, so that the screen 25 is kept clean, so the split-piston valve 1 Tolerance to impurities in the fluid is high.
  • the branch pipe 17 Since the branch port 24 on the inlet pipe 6 is located at the lower valve body 28, the branch pipe 17 is located above The position of the valve body 27, the opening gasket 26 installed between the branch port 24 and the branch pipe 17, can keep the seal between the upper valve body 27 and the lower valve body 28 in the region of the opening gasket 26, and The branch port 24 is in communication with the branch pipe 17 (see Fig. 5).
  • the partitioning member 5 in Figs. 1 and 2 is a partitioning diaphragm.
  • the limiting platform 20 and the second limiting platform 20A are used not only when the first sealing ring 15 on the sub-guide piston 14 and the first limiting platform 20, the second sealing ring 15A and the second limiting platform 20A are respectively connected.
  • the sealing force between the first sealing ring 15 and the second sealing ring 15A and the first limiting platform 20 and the second limiting platform 20A is ensured by a small force, and the first sealing ring 15 and the second sealing are ensured.
  • the requirement of the fit of the inner wall of the piston chamber 13 by the ring 15A is also lowered very low, so the split piston 14 and the first seal ring 15 and the second seal ring 15A can be integrally formed (see Fig. 1), the first seal ring 15 and the first The second seal ring 15A can also be sleeved on the split piston 14 (see Fig. 2). Due to the first sealing ring 15, the second sealing ring 15A has a low requirement for the inner wall of the piston chamber 13, so that the sub-piston type valve 1 can produce a qualified product by an ordinary injection molding process, thereby greatly reducing the production cost. There is no inlet valve with a push-in fitting on the market.
  • the split-piston valve 1 is provided with a first push-in fitting 21 and a second push-in fitting 21A which are usually used for a pneumatic system, so that the split piston Valve 1 can be easily connected to other equipment.
  • the waveform outputted by the reverse pulse channel 10 has a clear high- and low-order reverse pulse signal, which can provide the necessary control signals for the automatic control device.
  • the normal inlet valve neither has nor provides a clear high and low position.
  • Reverse pulse signal Set the reverse pulse channel 10 (see Figure 1) or the reverse pulse channel 10 (see Figure 2). The operation of the split piston valve 1 does not change.
  • the so-called reverse pulse that is, when the water in the inlet pipe 6 flows toward the outlet pipe 7, the pressure in the reverse pulse passage 10 is at a low position, and when the partition member 5 is fitted to the nozzle 8, the inlet pipe 6 is not provided in the outlet pipe 6
  • the pressure in the reverse pulse passage 10 is at a high level, and the pressure in the reverse pulse passage 10 is reversed from the pressure in the outlet pipe 7.
  • the fluid medium circulating in the split piston valve may be water or other liquid or gaseous medium.
  • the external force described in the embodiment is an external force that can be applied to the split piston 14 so that it can move up and down. This external force can be electromagnetic, hydraulic, pneumatic, lever, etc.
  • the inlet pipe 6 of the main valve 2 on which the first push-in fitting 21 is disposed is filled with pressurized water and a reverse pulse provided with the second push-in fitting 21A.
  • the blind hole device 11 such as a pressure gauge, an automatic control device, etc.
  • the split piston 14 on the split valve 12 can be moved up and down in the piston chamber 13 under the control of the external force 22, and the split piston 14
  • the first sealing ring 15 is disposed on the inner wall of the piston chamber 13.
  • the first limiting platform 20 is disposed between the water outlet 19 and the water outlet 23, and the position and size of the first sealing ring 15 The position and size of a limit platform 20 are matched.
  • a communication chamber 16 is formed between the first seal ring 15 on the split piston 14 and the inner wall of the piston chamber 13 near one end of the water inlet 18.
  • the water outlet 23 communicates with the water inlet 18, and the water inlet pipe 6 Part of the water enters the B chamber 4, the B chamber 4, and the blind hole device 11 on the reverse pulse passage 10 from the branch port 24, the branch pipe 17, the water inlet 18, the communication chamber 16, the water outlet 23, and the B channel 9.
  • the pressure is at a high level and the pressure is equal to the pressure in the inlet pipe 6.
  • the impurities in the water are blocked by the screen 25 and cannot enter the pilot valve. 12 in. Since the screen 25 is close to the inlet pipe 6, when the sub-piston valve 1 is in operation, the water flowing in the inlet pipe 6 has a flushing and cleaning action on the screen 25, so that the screen 25 is kept clean, so the split-piston valve 1 Tolerance to impurities in the fluid is high.
  • the branch pipe 17 is located at the position of the upper valve body 27, and the opening gasket 26 installed between the branch port 24 and the branch pipe 17 can be opened.
  • the upper valve body 27 in the region of the hole gasket 26 is kept sealed from the lower valve body 28, and the branch port 24 is kept in communication with the branch pipe 17 (see Fig. 6, Fig. 6A).
  • the partitioning member 5 in Figs. 3 and 4 is a partitioning piston.
  • the split pilot valve 12 cannot be leaked because the first limit is set in the piston chamber 13.
  • the platform 20 can not only make the first sealing ring 15 on the partial pilot piston 14 contact the first limiting platform 20, but also can make the first sealing ring 15 and the first limiting platform 20 with less force.
  • the sealing property is ensured, and the requirement of the first sealing ring 15 for the inner wall of the piston chamber 13 is also lowered, so that the partial pilot piston 14 and the first sealing ring 15 can be integrally formed (see FIG. 3), the first sealing ring. 15 can also be sleeved on the split piston 14 (see Figure 4).
  • the sub-piston type valve 1 can produce a qualified product by an ordinary injection molding process, thereby greatly reducing the production cost.
  • the split-piston valve 1 is provided with a first push-in fitting 21 and a second push-in fitting 21A which are usually used for a pneumatic system, so that the split piston Valve 1 can be easily connected to other equipment.
  • the waveform outputted by the reverse pulse channel 10 has a clear high- and low-order reverse pulse signal, which can provide the necessary control signals for the automatic control device.
  • the normal inlet valve neither has nor provides a clear high and low position. Reverse pulse signal.
  • the reverse pulse channel 10 (see Fig. 3) or the reverse pulse channel 10 (see Fig. 4) is not provided, and the operation of the pilot piston valve 1 is unchanged.
  • the so-called reverse pulse that is, when the water in the inlet pipe 6 flows toward the outlet pipe 7, the pressure in the reverse pulse passage 10 is at a low position, and when the partition member 5 is fitted to the nozzle 8, the inlet pipe 6 is not provided in the outlet pipe 6
  • the pressure in the reverse pulse passage 10 is at a high level, and the pressure in the reverse pulse passage 10 is reversed from the pressure in the outlet pipe 7.
  • the fluid medium circulating in the split piston valve may be water or other liquid or gaseous medium.
  • the external force described in the embodiment is an external force that can be applied to the split piston 14 so that it can move up and down. This external force can be electromagnetic, hydraulic, pneumatic, lever, etc.
  • sealing rings when there are two sealing rings, one sealing ring can be selected as one piece, and the other sealing ring is a socket structure. It is within the scope of the invention as long as the structural principle thereof does not depart from the scope of the invention.
  • the split-piston type valve of the invention has the advantages of simple structure, few parts and easy assembly, and the opening and closing speed of the valve tends to be uniform, and the external force drives the upper and lower movements of the split piston to synchronize with the opening and closing action of the valve. .
  • the tolerance to impurities contained in the fluid medium is high, and the cost is low, so the performance index is good.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Driven Valves (AREA)
  • Details Of Valves (AREA)

Abstract

启闭速度能趋于一致且结构简单、组装容易的分导活塞式阀门（1），当分导阀（12）上设置有密封环（15、15A）的分导活塞（14）在内壁设置有限位平台（20、20A）的活塞腔（13）内由外力使其上、下运动时，能使主阀（2）上进水管（6）内部分的流体介质通过分导口（24）、滤网（25）、开孔垫片（26）、分支管（17）、进水口（18）、连通腔室（16）、出水口（23）、B通道（9）进入B室（4）或使B室（4）内的流体介质通过B通道（9）、出水口（23）、从活塞腔（13）上的泄水口（19）排出，从而改变主阀（2）内由分隔件（5）分隔成A室（3）及B室（4）的B室（4）内的压力，使分隔件（5）所处的位置产生变动，分隔件（5）使主阀（2）上进水管（6）与出水管（7）上管口之间处于关闭，或开启状态，设置在B室（4）上的反向脉冲通道（10）能输出脉冲信号于压力检测仪或自动控制装置等，设置的快插式接头（21、21A）能方便与其他设备相连接。

Description

一种分导活塞式阀门 技术领域
本发明涉及阀门领域，具体涉及一种分导活塞式阀门。所述分导活塞式阀门用于控制管路中的流体介质。
背景技术
目前市场上的先导式阀门是用启、闭先导阀上的先导孔，从而改变主阀分隔件上、下部的压差来实现阀门的启、闭动作。由于结构上的限制，先导式阀门通常关闭速度快于开启速度，外力启、闭先导阀上的先导孔与阀门的启、闭不能同步，影响了控制信号对阀门启、闭的控制精度。
常见的先导式阀门零部件较多，一般达十件以上，结构也较为复杂。为了避免各部件之间组合时的误差累结，所以对部件的加工精度也有较高要求，且需要多种加工工序才能生产出各部件。为此，制造成本较高。
发明内容
因此，本发明要解决的技术问题是提供一种分导活塞式阀门，所述分导活塞式阀门关闭速度与开启速度趋于一致、外力驱动分导活塞上、下运动与阀门的启、闭动作趋于同步且造价低廉。
本发明的技术方案如下：
一种分导活塞式阀门，包括上阀体，下阀体，分隔件，进水管，出水管。
所述分导活塞式阀门包括由上阀体、下阀体组成的主阀及分导阀；
所述主阀包括进水管、分导口、出水管、管口、A室、B室、分隔件、B通道及分支管组成；所述分隔件与管口相匹配，分隔件位于A室与B室之间，并使A室与 B室不相连通，所述A室与进水管、出水管、管口相连通，所述B室与B通道相连通，所述进水管及位于进水管上的分导口位于所述下阀体位置，所述分支管位于所述上阀体位置，进水管上的分导口与分支管相连通；
所述分导阀包括活塞腔及带有密封环的分导活塞，所述活塞腔可供安置其内的分导活塞在其内上、下活动，活塞腔上设置有进水口和出水口，活塞腔上部开口为泄水口，所述出水口位于进水口与泄水口之间，B通道使B室与活塞腔上的出水口相连通，活塞腔的内壁设置有限位平台，分导活塞上的密封环使分导活塞与活塞腔靠近进水口一段的内壁之间形成一个连通腔室，密封环与限位平台之间的位置及大小相匹配，分导活塞的运动受外力控制。
其中，所述分导活塞上设置有两个密封环，所述活塞腔内壁设置有两个限位平台。当密封环为两个，限位平台也为两个时，上、下两个密封环与活塞腔靠近进水口一段的内壁之间形成的空间为连通腔室。
或者，所述分导活塞上设置有一个密封环，所述活塞腔内壁设置有一个限位平台。当密封环为一个，限位平台也为一个时，密封环与其下部活塞腔靠近进水口一段的内壁之间形成的空间为连通腔室。
在一个优选的实施方案中，所述分导活塞与密封环为一体成型。
在另一个优选的实施方案中，所述密封环套接在所述分导活塞上。
其中，在所述分导口和分支管之间设置有滤网和开孔垫片，滤网和开孔垫片的上下位置可以互换。滤网和开孔垫片的上下位置没有限制，即可以滤网在上，开孔垫片在下，也可以开孔垫片在上，滤网在下。
在本发明的分导活塞式阀门中，B室上设置连接有盲孔装置的反向脉冲通道。
在本发明的分导活塞式阀门中，所述进水管上设置有第一快插式接头。
在本发明的分导活塞式阀门中，所述反向脉冲通道上设置有第二快插式接头。
其中，所述分隔件为分隔膜片或分隔活塞。
在本发明的分导活塞式阀门中，所述分导活塞式阀门用于控制管路中的流体介质，所述流体介质为液体或气体。
本发明的有益效果是：
本发明的分导活塞式阀门的结构能使阀门的启、闭速度趋于一致，外力驱动分导活塞上、下运动与阀门的启、闭动作趋于同步。由于分导活塞式阀门对流体介质中所含杂质的容忍度较高，开启速度与关闭速度又趋于一致，所以性能指标较好。
相对于传统的先导式阀门，本发明的分导活塞式阀门除了分隔件以外，仅有上阀体、下阀体及位于上阀体内的分导活塞三个零件组成(即使为了达到更好的效果，加入开孔垫片和滤网，也只有五个零件)。三个零件相互间的配合精度要求也很低，三个零件是用一副模具注塑而成的，样品已通过了1MPa水压测试。因此，本发明的分导活塞式阀门结构简单，零件少，组装容易，所以造价非常低廉。
附图的简单说明
图1是分导活塞式阀门关闭，分隔件与管口贴合时的示意图。图中活塞腔内壁设置有二个限位平台，分导活塞上设置有二个与分导活塞一体成型的密封环，分隔件为分隔膜片。
图2是分导活塞式阀门开启，分隔件与管口分离时的示意图。图中活塞腔内壁设置有二个限位平台，分导活塞上设置有二个套接在分导活塞上的密封环，分隔件为分隔膜片。
图3分导活塞式阀门关闭，分隔件与管口贴合时的示意图。图中活塞腔内壁设置有一个限位平台，分导活塞上设置有一个与分导活塞一体成型的密封环。分隔件为分隔活塞。
图4分导活塞式阀门开启，分隔件与管口分离时的示意图。图中活塞腔内壁设置有一个限位平台，分导活塞上设置有一个套接在分导活塞上的密封环，分隔件为分隔活塞。
图5是分导活塞式阀门关闭，分隔件与管口贴合时的示意图。图中活塞腔内壁设置有二个限位平台，上阀体的分支管和下阀体的进水管上的分导口之间加装有滤网和开孔垫片。
图6是分导活塞式阀门开启，分隔件与管口分离时的示意图。图中活塞腔内壁设置有一个限位平台，上阀体的分支管和下阀体的进水管上的分导口之间加装有滤网和开孔垫片。
图6A是图6另一实施方式的示意图。
图7现有技术先导式阀门示意图，图中的分隔件为分隔膜片。
图8现有技术先导式阀门示意图，图中的分隔件为分隔活塞。
图中，1-分导活塞式阀门，2-主阀，3-A室，4-B室，5-分隔件，6-进水管，7-出水管，8-管口，9-B通道，10-反向脉冲通道，11-盲孔装置，12-分导阀，13-活塞腔，14-分导活塞，15-第一密封环，15A-第二密封环，16-连通腔室，17-分支管，18-进水口，19-泄水口，20-第一限位平台，20A-第二限位平台，21-第一快插式接头，21A-第二快插式接头，22-外力，23-出水口，24-分导口，25-滤网，26-开孔垫片，27-上阀体，28-下阀体。
1’-外力，2’-分隔件，3’-进水管，4’-出水管。
具体实施方式
实施例1
当组装好的分导活塞式阀门1，其主阀2上设置有第一快插式接头21的进水管6内充满带有压力的水及设置有第二快插式接头21A的反向脉冲通道10连接有盲孔装置11(如压力表，自动控制装置等)时，分导阀12上的分导活塞14在外力22控制下可以在活塞腔13内上、下活动，分导活塞14上设置有二个密封环15，15A，活塞腔13内壁设置有二个限位平台20，20A，第一限位平台20位于泄水口19与出水口23之间，第二限位平台20A位于进水口18下方，第一密封环15、第二密封环15A的位置及大小与第一限位平台20、第二限位平台20A的位置及大小相匹配。分导活 塞14上的第一密封环15、第二密封环15A之间与活塞腔13靠近进水口18一端的内壁之间形成连通腔室16。当外力22使分导活塞14下行至使出水口23与泄水口19相连通，B通道9，B室4及反向脉冲通道10上盲孔装置11内的压力处于低位，压力与环境压力相等，进水管6内的水通过管口8流向出水管7，分导活塞式阀门1处于开启状态(见图2)。当外力22使分导活塞上行至分导活塞14上的第一密封环15、第二密封环15A与活塞腔13内的第一限位平台20、第二限位平台20A分别相接，使出水口23与进水口18相连通，进水管6内部分的水从分导口24、分支管17、进水口18、连通腔室16、出水口23、B通道9进入B室4，B室4及反向脉冲通道10上的盲孔装置11内的压力处于高位，压力等同于进水管6内的压力。此时A室3内的水通过管口8流向出水管7时，由于流体在流动时，流速越快，压力越小，所以管口8处的压力小于B室4内的压力，至使与管口8相匹配的分隔件5向管口8靠近，并与管口8贴合。出水管7内没有了进水管9提供的水，出水管7内的压力处于低位，压力与环境压力相等，分隔件5与管口8在压差作用下紧密贴合，分导活塞式阀门1处于关闭状态(见图1)。当分导活塞14在外力22作用下，下行至使出水口23与泄水口19相连通时，B室4及反向脉冲通道10上盲孔装置11内的压力得到释放，B室4及反向脉冲通道10内的压力与环境压力相等。由于A室3与进水管6相连通，A室3内的压力大于B室4内的压力，分隔件5与管口8分离，分导活塞式阀门1处于开启状态(见图2)。进水管6内的水通过管口8向出水管7流出，由于管口8处的压力大于B室4内的压力，分导活塞式阀门1保持开启状态。从图1、图2中可以看出分导活塞式阀门1中进出B室的水都是通过同一条B通道9，所以分导活塞式阀门1的启闭速度趋于一致。
或者，在一个优选的实施方案中，当进水管6中部分的水经分导口24通过滤网25向分支管17流去时，水中的杂质被滤网25阻隔，不能进入分导阀12中。由于滤网25靠近进水管6，当分导活塞式阀门1在运行时，进水管6中流动的水对滤网25有冲刷、清洗作用，使滤网25保持清洁，所以分导活塞式阀门1对流体中含有杂质的容忍度较高。由于进水管6上的分导口24位于下阀体28位置，分支管17位于上 阀体27位置，分导口24与分支管17之间加装的开孔垫片26，可使在开孔垫片26区域内的上阀体27与下阀体28之间保持密封，并且分导口24与分支管17之间保持连通(见图5)。
图1和图2中的分隔件5为分隔膜片，当分隔件5与管口8贴合，主阀2关闭后，分导阀12也不能泄漏，由于在活塞腔13内设置了第一限位平台20、第二限位平台20A，不仅当分导活塞14上的第一密封环15与第一限位平台20、第二密封环15A与第二限位平台20A分别相接时，用较小的力就能使第一密封环15、第二密封环15A与第一限位平台20、第二限位平台20A之间的密封性得到保证，而且第一密封环15、第二密封环15A对活塞腔13内壁配合度的要求也降得很低，所以分导活塞14与第一密封环15、第二密封环15A可以一体成型(见图1)，第一密封环15和第二密封环15A也可以套接于分导活塞14上(如图2)。由于第一密封环15，第二密封环15A对活塞腔13内壁的配合度要求很低，所以分导活塞式阀门1用普通注塑工艺就能生产出合格产品，也就大幅降低了生产成本。市场上尚未见到带有快插式接头的进水阀，分导活塞式阀门1上设置通常用于气动系统的第一快插式接头21、第二快插式接头21A，使分导活塞式阀门1能方便与其他设备相连接。由反向脉冲通道10输出的波形带有明确高、低位的反向脉冲信号，能提供给自动控制装置必须的调控信号，通常的进水阀既不具备也无法提供带有明确高、低位的反向脉冲信号。设置反向脉冲通道10(见图1)或不设置反向脉冲通道10(见图2)，分导活塞式阀门1的工作过程不变。所谓反向脉冲，即当进水管6内的水流向出水管7时，反向脉冲通道10内的压力处于低位，当分隔件5与管口8贴合，出水管7内没有了进水管6提供的水时，反向脉冲通道10内的压力处于高位，反向脉冲通道10内与出水管7内的压力反向。
分导活塞式阀门内流通的流体介质可以是水，也可以是其它液体或者气体介质。实施例中所述的外力是可以施于分导活塞14上，使其能作上、下运动的外力。这一外力可以是电磁，液压，气动，杠杆等。
实施例2
当组装好的分导活塞式阀门1，其主阀2上设置有第一快插式接头21的进水管6内充满带有压力的水及设置有第二快插式接头21A的反向脉冲通道10连接有盲孔装置11(如压力表，自动控制装置等)时，分导阀12上的分导活塞14在外力22控制下可以在活塞腔13内上、下活动，分导活塞14上设置有第一密封环15，活塞腔13内壁设置有第一限位平台20，第一限位平台20位于泄水口19与出水口23之间，第一密封环15的位置及大小与第一限位平台20的位置及大小相匹配。分导活塞14上的第一密封环15与活塞腔13靠近进水口18一端的内壁之间形成连通腔室16。当外力22使分导活塞14下行至使出水口23与泄水口19相连通，B通道9，B室4及反向脉冲通道10上盲孔装置11内的压力处于低位，压力与环境压力相等，进水管6内的水通过管口8流向出水管7，分导活塞式阀门1处于开启状态(见图4)。当外力22使分导活塞上行至分导活塞14上的第一密封环15与活塞腔13内的第一限位平台20相接，使出水口23与进水口18相连通，进水管6内部分的水从分导口24、分支管17、进水口18、连通腔室16、出水口23、B通道9进入B室4，B室4及反向脉冲通道10上的盲孔装置11内的压力处于高位，压力等同于进水管6内的压力。此时A室3内的水通过管口8流向出水管7时，由于流体在流动时，流速越快，压力越小，所以管口8处的压力小于B室4内的压力，至使与管口8相匹配的分隔件5向管口8靠近，并与管口8贴合。出水管7内没有了进水管9提供的水，出水管7内的压力处于低位，压力与环境压力相等，分隔件5与管口8在压差作用下紧密贴合，分导活塞式阀门1处于关闭状态(见图3)。当分导活塞14在外力22作用下，下行至使出水口23与泄水口19相连通时，B室4及反向脉冲通道10上盲孔装置11内的压力得到释放，B室4及反向脉冲通道10内的压力与环境压力相等。由于A室3与进水管6相连通，A室3内的压力大于B室4内的压力，分隔件5与管口8分离，分导活塞式阀门1处于开启状态(见图4)。进水管6内的水通过管口8向出水管7流出，由于管口8处的压力大于B室4内的压力，分导活塞式阀门1保持开启状态。从图3、图4中可以看出分导活塞式阀门1中进出B室的水都是通过同一条B通道9， 所以分导活塞式阀门1的启闭速度趋于一致。
或者，在另一个优选的实施方案中，当进水管6中部分的水经分导口24通过滤网25向分支管17流去时，水中的杂质被滤网25阻隔，不能进入分导阀12中。由于滤网25靠近进水管6，当分导活塞式阀门1在运行时，进水管6中流动的水对滤网25有冲刷、清洗作用，使滤网25保持清洁，所以分导活塞式阀门1对流体中含有杂质的容忍度较高。由于进水管6上的分导口24位于下阀体28位置，分支管17位于上阀体27位置，分导口24与分支管17之间加装的开孔垫片26，可使在开孔垫片26区域内的上阀体27与下阀体28之间保持密封，并且分导口24与分支管17之间保持连通(见图6，图6A)。
图3和图4中的分隔件5为分隔活塞，当分隔件5与管口8贴合，主阀2关闭后，分导阀12也不能泄漏，由于在活塞腔13内设置了第一限位平台20，不仅当分导活塞14上的第一密封环15与第一限位平台20相接时，用较小的力就能使第一密封环15与第一限位平台20之间的密封性得到保证，而且第一密封环15对活塞腔13内壁配合度的要求也降得很低，所以分导活塞14与第一密封环15可以一体成型(见图3)，第一密封环15也可以套接于分导活塞14上(如图4)。由于第一密封环15对活塞腔13内壁配合度的要求很低，所以分导活塞式阀门1用普通注塑工艺就能生产出合格产品，也就大幅降低了生产成本。市场上尚未见到带有快插式接头的进水阀，分导活塞式阀门1上设置通常用于气动系统的第一快插式接头21、第二快插式接头21A，使分导活塞式阀门1能方便与其他设备相连接。由反向脉冲通道10输出的波形带有明确高、低位的反向脉冲信号，能提供给自动控制装置必须的调控信号，通常的进水阀既不具备也无法提供带有明确高、低位的反向脉冲信号。设置反向脉冲通道10(见图3)或不设置反向脉冲通道10(见图4)，分导活塞式阀门1的工作过程不变。所谓反向脉冲，即当进水管6内的水流向出水管7时，反向脉冲通道10内的压力处于低位，当分隔件5与管口8贴合，出水管7内没有了进水管6提供的水时，反向脉冲通道10内的压力处于高位，反向脉冲通道10内与出水管7内的压力反向。
分导活塞式阀门内流通的流体介质可以是水，也可以是其它液体或者气体介质。 实施例中所述的外力是可以施于分导活塞14上，使其能作上、下运动的外力。这一外力可以是电磁，液压，气动，杠杆等。
当然还可以作出其他的变形，例如在密封环为两个时，可以选择一个密封环为一体成型，另一个密封环为套接结构。只要其结构原理不脱离本发明的范畴都在本发明权利之内。
本发明的分导活塞式阀门，其结构简单，零件少，组装容易，能使阀门的启、闭速度趋于一致，外力驱动分导活塞上、下运动与阀门的启、闭动作趋于同步。对流体介质中所含杂质的容忍度较高，造价低廉，所以性能指标较好。

Claims (10)

  1. 一种分导活塞式阀门，包括上阀体，下阀体，分隔件，进水管，出水管，其特征在于：
    所述分导活塞式阀门包括由上阀体、下阀体组成的主阀及分导阀；
    所述主阀包括进水管、分导口、出水管、管口、A室、B室、分隔件、B通道及分支管组成；所述分隔件与管口相匹配，分隔件位于A室与B室之间，并使A室与B室不相连通，所述A室与进水管、出水管、管口相连通，所述B室与B通道相连通，所述进水管及位于进水管上的分导口位于所述下阀体位置，所述分支管位于所述上阀体位置，进水管上的分导口与分支管相连通；
    所述分导阀包括活塞腔及带有密封环的分导活塞，所述活塞腔可供安置其内的分导活塞在其内上、下活动，活塞腔上设置有进水口和出水口，活塞腔上部开口为泄水口，所述出水口位于进水口与泄水口之间，B通道使B室与活塞腔上的出水口相连通，活塞腔的内壁设置有限位平台，分导活塞上的密封环使分导活塞与活塞腔靠近进水口一段的内壁之间形成一个连通腔室，密封环与限位平台之间的位置及大小相匹配，分导活塞的运动受外力控制。
  2. 根据权利要求1所述的一种分导活塞式阀门，其特征在于，所述分导活塞上设置有两个密封环，所述活塞腔内壁设置有两个限位平台。
  3. 根据权利要求1所述的一种分导活塞式阀门，其特征在于，所述分导活塞上设置有一个密封环，所述活塞腔内壁设置有一个限位平台。
  4. 根据权利要求1所述的一种分导活塞式阀门，其特征在于，所述分导活塞与密封环为一体成型或者所述密封环套接在所述分导活塞上。
  5. 根据权利要求1所述的一种分导活塞式阀门，其特征在于，在所 述分导口和分支管之间设置有滤网和开孔垫片，滤网和开孔垫片的上下位置可以互换。
  6. 根据权利要求1所述的一种分导活塞式阀门，其特征在于，B室上设置连接有盲孔装置的反向脉冲通道。
  7. 根据权利要求1所述的一种分导活塞式阀门，其特征在于，所述进水管上设置有第一快插式接头。
  8. 根据权利要求6所述的一种分导活塞式阀门，其特征在于，所述反向脉冲通道上设置有第二快插式接头。
  9. 根据权利要求1所述的一种分导活塞式阀门，其特征在于，所述分隔件为分隔膜片或分隔活塞。
  10. 根据权利要求1所述的一种分导活塞式阀门，其特征在于，所述分导活塞式阀门用于控制管路中的流体介质，所述流体介质为液体或气体。
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