CN113028096B - Automatic opening and closing hydraulic switch valve - Google Patents

Automatic opening and closing hydraulic switch valve Download PDF

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Publication number
CN113028096B
CN113028096B CN202110288794.6A CN202110288794A CN113028096B CN 113028096 B CN113028096 B CN 113028096B CN 202110288794 A CN202110288794 A CN 202110288794A CN 113028096 B CN113028096 B CN 113028096B
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China
Prior art keywords
valve
assembly
sealing
valve core
fixedly connected
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CN202110288794.6A
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Chinese (zh)
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CN113028096A (en
Inventor
郭正柔
刘昌波
傅迪生
周琪
刘超
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Jiangsu Shenlan Aerospace Co ltd
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Jiangsu Shenlan Aerospace Co ltd
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Priority to CN202110288794.6A priority Critical patent/CN113028096B/en
Publication of CN113028096A publication Critical patent/CN113028096A/en
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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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/048—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with valve seats positioned between movable 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
    • 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
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Sliding Valves (AREA)

Abstract

The invention provides an automatic opening and closing hydraulic switch valve, which comprises a valve body, a valve core assembly and an elastic reset assembly, wherein a valve hole is formed in the valve body, the valve core assembly is arranged in the valve hole and can slide left and right along the valve hole, the valve core assembly is fixedly connected with the right end of the valve body through the elastic reset assembly, and a discharge port, an inlet and an outlet which are communicated with the valve hole are sequentially arranged on the valve body from left to right; the valve opening/closing control device cancels the conventional air cylinder to push the valve core to control the opening/closing of the valve, reduces the design of pipelines, reduces the self weight and also improves the reliability; the low pressure of the liquid and the exhaust of the pipeline and the high pressure of the work of the turbine pump are automatically opened or closed, the stability is good, and the automatic control can be realized.

Description

Automatic opening and closing hydraulic switch valve
Technical Field
The utility model relates to the technical field of valves, especially, relate to an automatic hydraulic switch valve who opens and close.
Background
The valve is one of very important parts in the field of fluid delivery, and is widely applied in the aerospace field and other industrial fields, the aerospace engine needs the characteristics of reliable valve sealing performance, compact structure, small volume, light weight and the like, and the prior case of trial run or launching failure caused by the failure of the valve can be seen, so that the importance of the valve is seen.
The main valve on the traditional aerospace engine is opened/closed by a control gas control valve, so a control gas pipeline is required to be connected, and the control gas can be used in a matched manner only by reducing the pressure of a pressure reducing valve, so that the whole weight is increased, uncertain factors are increased, and once the control gas pressure is insufficient or the sealing effect of the control gas pipeline is poor, the opening state of the main valve can not be achieved, so that serious results are caused.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present disclosure provides an automatically opening and closing hydraulic switching valve.
According to one aspect of the disclosure, an automatic opening and closing hydraulic switch valve comprises a valve body, a valve core assembly and an elastic reset assembly, wherein a valve hole is formed in the valve body, the valve core assembly is arranged in the valve hole and can slide left and right along the valve hole, the valve core assembly is fixedly connected with the right end of the valve body through the elastic reset assembly, and a discharge port, an inlet and an outlet which are communicated with the valve hole are sequentially arranged on the valve body from left to right;
when the valve core assembly is positioned at the left end of the valve hole, the valve core assembly is subjected to leftward resultant force, the discharge port is communicated with the inlet, and the inlet and the outlet are closed;
when the valve core assembly is positioned at the right end of the valve hole, the valve core assembly is subjected to rightward resultant force, the discharge port is sealed with the inlet, and the inlet is communicated with the outlet.
The valve core assembly comprises a valve core, a right side sealing assembly and a left side sealing assembly, the right side sealing assembly is fixedly connected with the right end of the valve core assembly, the left side sealing assembly is fixedly connected with the left end of the valve core assembly, and the right side sealing assembly is fixedly connected with the elastic resetting assembly;
when the valve element assembly is positioned at the left end of the valve hole, the right sealing assembly blocks a liquid path between the inlet and the outlet;
when the valve core assembly is positioned at the right end of the valve hole, the left sealing assembly blocks a liquid path between the discharge port and the inlet.
Specifically, the valve hole sequentially comprises a gas outlet section, a liquid inlet section and a liquid outlet section from left to right, a left circular ring bulge is arranged between the gas outlet section and the liquid inlet section, a right circular ring bulge is arranged between the liquid inlet section and the liquid outlet section, the discharge port is communicated with the gas outlet section, the inlet is communicated with the liquid inlet section, and the outlet is communicated with the liquid outlet section;
when the valve core assembly is positioned at the left end of the valve hole, the right side sealing assembly is in sealing fit with the right end face of the right side circular ring bulge;
when the valve core assembly is positioned at the right end of the valve hole, the left side sealing assembly is in sealing fit with the left end face of the left side circular ring bulge.
Specifically, the case subassembly includes valve rod, right-hand member board and left end board, the left end board with the left end fixed connection of valve rod, the right-hand member board with the right-hand member fixed connection of valve rod, the area of right-hand member board is greater than the area of left end board, the valve rod the right-hand member board with the left end board is the integrated into one piece structure.
Specifically, the right sealing assembly comprises a right spool sealing body, a right sealing body fixing part and a right guide device, the right end of the valve rod is fixedly connected with the right sealing body fixing part, the right spool sealing body is arranged between the right side surface of the right end plate and the left side surface of the right sealing body fixing part, the right guide device is fixedly connected with the valve body through a large inner hexagonal socket head cap screw, and the right sealing body fixing part is arranged in the right guide device and can slide left and right along the right guide device;
the left side seal assembly comprises a left side valve core seal body, a left side seal body fixing part and a left side guide device, the left end of the valve rod is fixedly connected with the left side seal body fixing part, the left side valve core seal body is arranged between the left side face of the left side end plate and the right side face of the left side seal body fixing part, the left side guide device is fixedly connected with the valve body through a large inner hexagonal socket head cap screw, and the left side seal body fixing part is arranged in the left side guide device and can be pulled along the left side guide device to slide left and right.
Preferably, the outer diameter of the left side valve core sealing body is larger than the inner diameter of the left side circular ring bulge, a sealing ring is arranged between the left side valve core sealing body and the left end plate, a flooding plug is arranged between the outer side face of the left side sealing body fixing member and the inner side face of the left side guiding device, and the flooding plug is fixedly connected with the outer side face of the left side sealing body fixing member through a pin;
the outer diameter of the right side valve core sealing body is larger than the inner diameter of the right side circular ring bulge, the right side valve core sealing body is provided with a sealing ring between the right end plate, the outer side face of the right side sealing body fixing part is provided with a flooding plug between the inner side face of the right side guide device, and the flooding plug is fixedly connected with the outer side face of the right side sealing body fixing part through a pin.
Specifically, the elastic reset assembly comprises a spring fixing frame, a spring and a spring fixing seat, the spring fixing seat is fixedly connected with the right side face of the right side sealing body fixing part, the spring fixing frame is fixedly connected with the right end face of the valve body through a small inner hexagonal socket head cap screw, the spring is fixedly arranged in a right side cavity between the spring fixing frame and the spring fixing seat, and two ends of the spring are respectively fixedly connected with the spring fixing frame and the spring fixing seat.
Preferably, a left cavity is arranged between the left sealing body fixing piece and the left guide device, a left air outlet communicated with the left cavity is formed in the end face of the left guide device, and a right air outlet communicated with the right cavity is formed in the end face of the spring fixing frame.
Further, be provided with the boss of giving vent to anger, feed liquor boss and play liquid boss on the valve body, the discharge port sets up in the boss of giving vent to anger, the entry sets up in the feed liquor boss, the export sets up in the play liquid boss.
Preferably, the valve rod is detachably connected with the left sealing body fixing piece through threads, and the valve body is detachably connected with the right sealing body fixing piece through threads.
According to at least one embodiment of the disclosure, the conventional air cylinder is omitted to push the valve core to control the opening/closing of the valve, so that the design of pipelines is reduced, the self weight is reduced, and the reliability is also improved; the low pressure of the liquid and the exhaust of the pipeline and the high pressure of the work of the turbine pump are utilized to automatically open or close, the stability is good, and the automatic control can be realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
FIG. 1 is a schematic structural diagram of an automatic opening and closing hydraulic switching valve according to the present disclosure;
FIG. 2 is a top view of FIG. 1;
FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 1;
fig. 4 is a sectional view B-B of fig. 1.
Reference numerals: 1-valve body, 2-case subassembly, 3-right side case seal, 4-sealing washer, 5-right side seal mounting, 6-pin, 7-general stopper, 8-right side guider, 9-big hexagon socket head cap screw, 10-little hexagon socket head cap screw, 11-spring mount, 12 springs, 13-spring fixing base, 14-left side case seal, 15-left side seal mounting, 16-left side guider, T1-feed liquor boss, T2-play liquid boss, T3-play gas boss, Z1-right side seal subassembly, Z2-left side seal subassembly, Q1-right side cavity, Q2-left side cavity, K1-right side exhaust hole, K2-left side exhaust hole, S1-right end plate, S2-left end plate, S3-valve rod, entry-A1, export-B1, discharge port-C1.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
According to the hydraulic switch valve who opens and close automatically of this disclosure, its characterized in that includes: the valve comprises a valve body 1, a valve core assembly 2 and an elastic reset assembly, wherein a valve hole is formed in the valve body 1, the valve core assembly 2 is arranged in the valve hole and can slide left and right along the valve hole, the valve core assembly 2 is fixedly connected with the right end of the valve body 1 through the elastic reset assembly, and a discharge port C1, an inlet A1 and an outlet B1 which are communicated with the valve hole are sequentially arranged on the valve body 1 from left to right;
when the valve core assembly 2 is positioned at the left end of the valve hole, the valve core assembly 2 is subjected to leftward resultant force, the discharge port C1 is communicated with the inlet A1, and the inlet A1 and the outlet B1 are closed;
when the valve core assembly 2 is positioned at the right end of the valve hole, the valve core assembly 2 is subjected to rightward resultant force, the discharge port C1 is sealed with the inlet A1, and the inlet A1 is communicated with the outlet B1.
The inlet A1 is communicated with an oil outlet of a turbine pump through a pipeline, and the outlet B1 is communicated with equipment needing oil supply through a pipeline, for example: an engine, a fuel pump, etc., the discharge port C1 may be connected back to the fuel tank.
When the valve core assembly is in a non-working state, the elastic resetting assembly applies a leftward acting force to the valve core assembly 2, so that the inlet A1 and the outlet B1 are sealed by the valve core assembly 2, and the main oil way is sealed.
When the turbine pump works, high-pressure oil is pumped into the valve hole through the pipeline and the inlet A1 by the turbine pump, the high-pressure oil applies a rightward resultant force to the valve core assembly 2, and when the resultant force is larger than the elastic force of the elastic resetting assembly, the valve core assembly 2 moves rightwards to communicate the inlet A1 with the outlet B1, so that the communication of a main oil way is realized.
The valve core assembly 2 comprises a valve core, a right side sealing assembly Z1 and a left side sealing assembly Z2, the right side sealing assembly Z1 is fixedly connected with the right end of the valve core assembly 2, the left side sealing assembly Z2 is fixedly connected with the left end of the valve core assembly 2, and the right side sealing assembly Z1 is fixedly connected with the elastic resetting assembly;
when the valve core assembly 2 is positioned at the left end of the valve hole, the right sealing assembly Z1 blocks a liquid path between the inlet A1 and the outlet B1;
when the valve core assembly 2 is positioned at the right end of the valve hole, the left sealing assembly Z2 blocks a liquid path between the discharge port C1 and the inlet A1.
The sealing assemblies are respectively connected to two ends of the valve core, the right sealing assembly Z1 and the left sealing assembly Z2 are moved by the left movement and the right movement of the valve core, and the sealing of an oil way is realized through the sealing assemblies.
The valve hole sequentially comprises an air outlet section, a liquid inlet section and a liquid outlet section from left to right, a left circular bulge is arranged between the air outlet section and the liquid inlet section, a right circular bulge is arranged between the liquid inlet section and the liquid outlet section, a discharge port C1 is communicated with the air outlet section, an inlet A1 is communicated with the liquid inlet section, and an outlet B1 is communicated with the liquid outlet section;
when the valve core component 2 is positioned at the left end of the valve hole, the right sealing component Z1 is in sealing fit with the right end face of the right circular ring bulge;
when the valve core component 2 is positioned at the right end of the valve hole, the left sealing component Z2 is in sealing fit with the left end face of the left circular ring bulge.
The structure discloses a concrete seal structure, through being divided into the syllogic structure with the valve opening to it is protruding to set up the ring that the internal diameter is less than the valve opening between adjacent both ends structure, then accessible left side seal assembly Z2 right side seal assembly Z1 and the protruding contact/separation realization of left side ring/right side ring are to opening and closing of oil circuit.
The valve core assembly 2 comprises a valve rod S3, a right end plate S1 and a left end plate S2, the left end plate S2 is fixedly connected with the left end of the valve rod S3, the right end plate S1 is fixedly connected with the right end of the valve rod S3, the area of the right end plate S1 is larger than that of the left end plate S2, and the valve rod S3, the right end plate S1 and the left end plate S2 are of an integrally formed structure.
In order to achieve the left and right movements of the spool assembly 2 by pumping oil of the turbo pump, the area of the left end plate S2 is set to be smaller than the area of the right end plate S1,
before not letting in oil, lie in the left end under the effect of case subassembly 2 elasticity reset assembly, right side seal assembly Z1 and the protruding contact of right side ring, form sealedly, entry A1 links to each other with discharge port C1, after low pressure kerosene gets into from entry A1, discharge the air in the valve hole from discharge port C1, after the turbopump began to work, the pressure of medium oil increases, because the area of contact of oil and right end plate S1 is greater than the area of contact with left end plate S2 (shown with adding the bold line in figure 2), so the oil pressure that receives on case subassembly 2 right side is greater than the oil pressure that the left side received.
At the moment, the valve core assembly 2 is respectively subjected to left and right liquid (oil) pressures, right acting force and friction force of the elastic reset assembly, when the right side of the valve core assembly 2 is subjected to a force greater than the combined force of the left acting force, the right acting force and the friction force of the elastic reset assembly, the valve core assembly 2 moves rightwards, the left sealing assembly Z2 is in contact with the left circular ring bulge to form sealing, the right side is opened, the outlet B1 is connected with the inlet A1, and the main valve is in an open state.
When the turbine pump stops working, the pressure of the medium oil drops, the force applied to the right side of the valve core assembly 2 is smaller than the combined force of the force applied to the left side, the rightward acting force of the elastic reset assembly and the friction force, the valve core assembly 2 moves leftwards, the right sealing assembly Z1 is in contact with the right circular ring bulge to form sealing, the inlet A1 is connected with the discharge port C1, and the main valve is closed.
The right sealing assembly Z1 comprises a right valve core sealing body 3, a right sealing body fixing part 5 and a right guide device 8, the right end of the valve rod S3 is fixedly connected with the right sealing body fixing part 5, the right valve core sealing body 3 is arranged between the right side surface of a right end plate S1 and the left side surface of the right sealing body fixing part 5, the right guide device 8 is fixedly connected with the valve body 1 through a large inner hexagonal socket head cap screw 9, and the right sealing body fixing part 5 is arranged in the right guide device 8 and can slide left and right along the right guide device 8;
left side seal assembly Z2 includes left side case sealing body 14, left side sealing body mounting 15 and left side guider 16, the left end and the left side sealing body mounting 15 fixed connection of valve rod S3, left side case sealing body 14 sets up between the left surface of left end board S2 and the right flank of left side sealing body mounting 15, left side guider 16 passes through big allen cap screw 9 and valve body 1 fixed connection, left side sealing body mounting 15 sets up in left side guider 16 and can follow left side guider 16 and slide from side to side.
The outer diameter of the left valve core sealing body 14 is larger than the inner diameter of the left circular ring bulge, a sealing ring 4 is arranged between the left valve core sealing body 14 and the left end plate S2, a flooding plug 7 is arranged between the outer side face of the left sealing body fixing member 15 and the inner side face of the left guide device 16, and the flooding plug 7 is fixedly connected with the outer side face of the left sealing body fixing member 15 through a pin 6;
the external diameter of right side case seal 3 is greater than the bellied internal diameter of right side ring, is provided with sealing washer 4 between right side case seal 3 and the right-hand member board S1, is provided with between the lateral surface of right side seal mounting 5 and the medial surface of right side guider 8 and floods stopper 7, floods stopper 7 and passes through pin 6 and the lateral surface fixed connection of right side seal mounting 5.
The inlet A1 and the outlet B1 are connected and disconnected through the clutch of the right valve core sealing body 3 and the right circular ring bulge, and the inlet A1 and the discharge port C1 are connected and disconnected through the clutch of the left valve core sealing body 14 and the left circular ring bulge.
Realize fixed effect through guider to the seal mounting, need guarantee simultaneously that it can carry out the horizontal slip in guider inside, in order to increase stability and leakproofness, with right side case seal 3, left side case seal 14, right side seal mounting 5, left side seal mounting 15, right side guider 8 and left side guider 16 all set up into the disc, the ring, the cylinder, circular structures such as drum, and with it all with valve body 1, the coaxial setting of valve opening, in time it takes place to rotate, also can not cause the influence to the leakproofness.
The valve rod S3 is detachably connected with the left sealing body fixing piece 15 through threads, and the valve body 1 is detachably connected with the right sealing body fixing piece 5 through threads.
With can dismantle through the screw thread between valve rod S3 and the seal mounting and be connected, can dismantle guiding device and valve body 1 through big hexagon socket head cap screw 9 and be connected for each part homoenergetic of this valve is demolishd, thereby makes can the pertinence change the part of damage.
The elastic reset assembly comprises a spring fixing frame 11, a spring 12 and a spring fixing seat 13, the spring fixing seat 13 is fixedly connected with the right side face of the right side sealing body fixing part 5, the spring fixing frame 11 is fixedly connected with the right end face of the valve body 1 through a small inner hexagonal socket head cap screw, the spring 12 is fixedly arranged in a right side cavity Q1 between the spring fixing frame 11 and the spring fixing seat 13, and two ends of the spring 12 are fixedly connected with the spring fixing frame 11 and the spring fixing seat 13 respectively.
The above structure is just one example of the elastic return assembly, which applies a leftward force to the spool assembly 2 by the spring 12.
Meanwhile, the elastic coefficient of the spring 12, the area difference between the left end plate S2 and the right end plate S1 can be adjusted according to requirements, so that the pressure value of the control valve body 1 which can be automatically controlled is achieved.
The spring 12 may be replaced with the remaining elastic member such as a pneumatic rod or the like.
Be provided with left side cavity Q2 between left side seal body mounting 15 and the left side guider 16, be provided with the left side venthole K2 with left side cavity Q2 intercommunication on the terminal surface of left side guider 16, be provided with the right side venthole K1 with right side cavity Q1 intercommunication on the terminal surface of spring mount 11.
When the left air outlet hole K2 and the right air outlet hole K1 are formed, the air pressure of the left cavity Q2 and the air pressure of the right cavity Q1 can be automatically controlled when the valve core assembly 2 moves left and right, and the valve core assembly 2 cannot be influenced.
In order to facilitate the connection of each pipeline, a gas outlet boss T3, a liquid inlet boss T1 and a liquid outlet boss T2 are arranged on the valve body 1, a discharge port C1 is arranged in the gas outlet boss T3, an inlet A1 is arranged in the liquid inlet boss T1, and an outlet B1 is arranged in the liquid outlet boss T2.
In the description of the present specification, reference to the description of "one embodiment/mode", "some embodiments/modes", "example", "specific example", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples and features of the various embodiments/modes or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are provided merely for clarity of explanation and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims (8)

1. The utility model provides an automatic hydraulic switch valve who opens and close which characterized in that includes: the valve core assembly is fixedly connected with the right end of the valve body through the elastic reset assembly, and a discharge port, an inlet and an outlet which are communicated with the valve hole are sequentially arranged on the valve body from left to right;
the valve core assembly comprises a valve core, a right side sealing assembly and a left side sealing assembly, the right side sealing assembly is fixedly connected with the right end of the valve core assembly, the left side sealing assembly is fixedly connected with the left end of the valve core assembly, and the right side sealing assembly is fixedly connected with the elastic resetting assembly;
when the valve core assembly is positioned at the left end of the valve hole under the action of the elastic resetting assembly, the valve core assembly is subjected to leftward resultant force, the discharge port is communicated with the inlet, the right sealing assembly blocks a liquid path between the inlet and the outlet, and the inlet and the outlet are closed;
when the force applied to the right side of the valve core assembly is greater than the resultant force of the force applied to the left side, the rightward acting force of the elastic reset assembly and the friction force, the valve core assembly is positioned at the right end of the valve hole, the left sealing assembly blocks a liquid path between the discharge port and the inlet, the discharge port and the inlet are sealed, and the inlet is communicated with the outlet;
the valve core assembly comprises a valve rod, a right end plate and a left end plate, the left end plate is fixedly connected with the left end of the valve rod, the right end plate is fixedly connected with the right end of the valve rod, the area of the right end plate is larger than that of the left end plate, and the valve rod, the right end plate and the left end plate are of an integrally formed structure.
2. The automatic opening and closing hydraulic switch valve as claimed in claim 1, wherein the valve hole comprises an air outlet section, a liquid inlet section and a liquid outlet section in sequence from left to right, a left circular protrusion is arranged between the air outlet section and the liquid inlet section, a right circular protrusion is arranged between the liquid inlet section and the liquid outlet section, the discharge port is communicated with the air outlet section, the inlet is communicated with the liquid inlet section, and the outlet is communicated with the liquid outlet section;
when the valve core assembly is positioned at the left end of the valve hole, the right side sealing assembly is in sealing fit with the right end face of the right side circular ring bulge;
and when the valve core assembly is positioned at the right end of the valve hole, the left sealing assembly is in sealing fit with the left end face of the left circular ring bulge.
3. The automatic opening and closing hydraulic switch valve according to claim 2, wherein the right sealing assembly comprises a right spool sealing body, a right sealing body fixing member and a right guide device, the right end of the valve rod is fixedly connected with the right sealing body fixing member, the right spool sealing body is arranged between the right side surface of the right end plate and the left side surface of the right sealing body fixing member, the right guide device is fixedly connected with the valve body through a large hexagon socket head cap screw, and the right sealing body fixing member is arranged in the right guide device and can slide left and right along the right guide device;
the left side seal assembly comprises a left side valve core seal body, a left side seal body fixing part and a left side guide device, the left end of the valve rod is fixedly connected with the left side seal body fixing part, the left side valve core seal body is arranged between the left side face of the left side end plate and the right side face of the left side seal body fixing part, the left side guide device is fixedly connected with the valve body through a large inner hexagonal socket head cap screw, and the left side seal body fixing part is arranged in the left side guide device and can be pulled along the left side guide device to slide left and right.
4. The automatic opening and closing hydraulic switch valve as claimed in claim 3, wherein the outer diameter of the left side valve core sealing body is larger than the inner diameter of the left side circular ring bulge, a sealing ring is arranged between the left side valve core sealing body and the left end plate, a flooding plug is arranged between the outer side surface of the left side sealing body fixing member and the inner side surface of the left side guide device, and the flooding plug is fixedly connected with the outer side surface of the left side sealing body fixing member through a pin;
the outer diameter of the right side valve core sealing body is larger than the inner diameter of the right side circular ring bulge, the right side valve core sealing body is provided with a sealing ring between the right end plate, the outer side face of the right side sealing body fixing part is provided with a flooding plug between the inner side face of the right side guide device, and the flooding plug is fixedly connected with the outer side face of the right side sealing body fixing part through a pin.
5. The automatic opening and closing hydraulic switch valve as claimed in claim 3, wherein the elastic reset component comprises a spring fixing frame, a spring and a spring fixing seat, the spring fixing seat is fixedly connected with the right side surface of the right side sealing body fixing part, the spring fixing frame is fixedly connected with the right end surface of the valve body through a small inner hexagonal socket head cap screw, the spring is fixedly arranged in the right side cavity between the spring fixing frame and the spring fixing seat, and two ends of the spring are respectively fixedly connected with the spring fixing frame and the spring fixing seat.
6. The automatic opening and closing hydraulic switch valve as claimed in claim 5, wherein a left cavity is provided between the left sealing body fixing member and the left guide, a left air outlet hole communicated with the left cavity is provided on an end surface of the left guide, and a right air outlet hole communicated with the right cavity is provided on an end surface of the spring fixing bracket.
7. The automatic opening and closing hydraulic switch valve according to claim 5, wherein the valve body is provided with a gas outlet boss, a liquid inlet boss and a liquid outlet boss, the discharge port is arranged in the gas outlet boss, the inlet is arranged in the liquid inlet boss, and the outlet is arranged in the liquid outlet boss.
8. The automatically opening and closing hydraulic switch valve as claimed in claim 3, wherein said valve stem is detachably connected to said left sealing body fixing member by a screw, and said valve body is detachably connected to said right sealing body fixing member by a screw.
CN202110288794.6A 2021-03-18 2021-03-18 Automatic opening and closing hydraulic switch valve Active CN113028096B (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5899232A (en) * 1998-04-14 1999-05-04 Coulter International Corp. Debris-resistant hydropneumatic valve
US6382239B1 (en) * 1998-12-09 2002-05-07 Tri-Clover, Inc. Leak-detecting diverter valve
JP2002188732A (en) * 2000-12-20 2002-07-05 Ckd Corp Fluid control valve
CN2584977Y (en) * 2002-11-08 2003-11-05 徐连奎 Automatic air control switching valve
EP1653132A1 (en) * 2004-11-02 2006-05-03 Siemens Aktiengesellschaft Three-way valve
CN203202302U (en) * 2013-04-02 2013-09-18 广东伟祥卫浴实业有限公司 Water saving faucet with two holes discharging water unidirectionally
KR101692408B1 (en) * 2016-06-27 2017-01-03 주식회사 에프피씨 valve unit for automatic volumetric flow compensation using poppet valve connected push-bar
CN108139083A (en) * 2015-10-02 2018-06-08 格兰富控股联合股份公司 Hydraulic system
CH714276A2 (en) * 2017-10-30 2019-04-30 Hochschule Luzern Technik & Architektur Inst Fuer Gebaeudetechnik Und Energie Ige Automatic three-way valve for connection of an expansion vessel in a district heating network and a district heating network with such a valve.
CN210566424U (en) * 2019-10-09 2020-05-19 攀钢集团钛业有限责任公司 Three-way control valve for inflation and exhaust switching

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5899232A (en) * 1998-04-14 1999-05-04 Coulter International Corp. Debris-resistant hydropneumatic valve
US6382239B1 (en) * 1998-12-09 2002-05-07 Tri-Clover, Inc. Leak-detecting diverter valve
JP2002188732A (en) * 2000-12-20 2002-07-05 Ckd Corp Fluid control valve
CN2584977Y (en) * 2002-11-08 2003-11-05 徐连奎 Automatic air control switching valve
EP1653132A1 (en) * 2004-11-02 2006-05-03 Siemens Aktiengesellschaft Three-way valve
CN203202302U (en) * 2013-04-02 2013-09-18 广东伟祥卫浴实业有限公司 Water saving faucet with two holes discharging water unidirectionally
CN108139083A (en) * 2015-10-02 2018-06-08 格兰富控股联合股份公司 Hydraulic system
KR101692408B1 (en) * 2016-06-27 2017-01-03 주식회사 에프피씨 valve unit for automatic volumetric flow compensation using poppet valve connected push-bar
CH714276A2 (en) * 2017-10-30 2019-04-30 Hochschule Luzern Technik & Architektur Inst Fuer Gebaeudetechnik Und Energie Ige Automatic three-way valve for connection of an expansion vessel in a district heating network and a district heating network with such a valve.
CN210566424U (en) * 2019-10-09 2020-05-19 攀钢集团钛业有限责任公司 Three-way control valve for inflation and exhaust switching

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