CN112081987B - Pressure stabilizer built in proportional valve - Google Patents
Pressure stabilizer built in proportional valve Download PDFInfo
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- CN112081987B CN112081987B CN202010824808.7A CN202010824808A CN112081987B CN 112081987 B CN112081987 B CN 112081987B CN 202010824808 A CN202010824808 A CN 202010824808A CN 112081987 B CN112081987 B CN 112081987B
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- 239000003381 stabilizer Substances 0.000 title claims description 18
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 92
- 238000007789 sealing Methods 0.000 claims description 43
- 229920001971 elastomer Polymers 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 8
- 239000000806 elastomer Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 8
- 238000011160 research Methods 0.000 description 6
- 239000000306 component Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
- 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
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
- F15B13/0433—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being pressure control valves
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/004—Actuating devices; Operating means; Releasing devices actuated by piezoelectric means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of gas pressure stabilization, in particular to a pressure stabilizing device arranged in a proportional valve, which comprises a gas reversing plate, an elastic body, an adjusting part assembly and a valve core, wherein a valve body of the proportional valve is provided with an inner cavity, a gas inlet channel and a gas outlet channel; and the gas reversing plate is bent to form a first pressure stabilizing cavity and a second pressure stabilizing cavity, so that the volume of the pressure stabilizing device is greatly reduced, the requirement of integrated miniaturization can be met, and the popularization and application of the proportional valve are greatly improved.
Description
Technical Field
The invention relates to the technical field of gas pressure stabilization, in particular to a pressure stabilizing device arranged in a proportional valve.
Background
The application of the digital control technology in a pneumatic servo system is more and more common, so that the proportional valve is developed towards the directions of low power consumption, energy conservation, integration compactness, miniaturization, precision, high speed, long service life and the like. To achieve the above objective, more and more research institutions and companies are conducting different researches on the proportional valve, such as the research and improvement of the conventional pneumatic valve structure and the research on the material performance of the core components of the proportional valve. Existing companies have introduced the electro-mechanical conversion characteristics of piezoelectric materials into proportional valves as an upgrade to conventional electromagnetic proportional valves.
The proportional valve adopting the piezoelectric technology mainly structurally comprises a main valve and a piezoelectric pilot valve. The piezoelectric pilot valve needs certain opening pressure which cannot be too large and easily damages the piezoelectric pilot valve; the opening pressure can not be too small, and the valve can not be opened or can not be normally controlled to be opened or closed when the opening pressure is too small. For this reason, proportional valves require a stable piezoelectric pilot valve supply air pressure device.
In order to meet the requirement of convenient use of a client, the proportional valve is developed towards the direction of integration, compactness and miniaturization, so that the air supply device of the piezoelectric pilot valve is small and compact, and the closer the air supply device is to the proportional valve, the better the air supply device is;
in view of this, the present invention is directed to providing a pressure stabilizer built in a proportional valve, wherein a piezoelectric proportional valve is applied more and more widely in various high precision fields, and an electromagnetic proportional valve is gradually replaced in the conventional field, so that the pressure stabilizer has a very important meaning for the research on the piezoelectric proportional valve, and also has a great meaning for the research on the pressure stabilizer for providing stable air pressure for the piezoelectric proportional valve.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problem that air pressure fluctuation is easily generated when the proportional valve supplies air for the piezoelectric pilot valve in the prior art, a pressure stabilizing device built in the proportional valve is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a pressure stabilizing device arranged in a proportional valve comprises a gas reversing plate, an elastic body, an adjusting part assembly and a valve core, wherein an inner cavity, a gas inlet channel and a gas outlet channel are formed in a valve body of the proportional valve, and the gas reversing plate is configured in the inner cavity;
the gas reversing plate is bent and matched with the inner cavity to form a first pressure stabilizing cavity and a second pressure stabilizing cavity, the elastic body is positioned between the gas reversing plate and the inner wall of the top end of the inner cavity, a valve core hole penetrates through the gas reversing plate, the valve core penetrates through the valve core hole, the top end of the valve core is connected with the elastic body, a throttling opening is formed between the lower surface of the elastic body and the upper surface of the gas reversing plate, a gap communicated with the throttling opening is reserved between the valve core and the valve core hole, the first pressure stabilizing cavity and the second pressure stabilizing cavity are communicated through the throttling opening, the area of the cross section of the valve core hole is smaller than the area of the bottom of the first pressure stabilizing cavity, and a communication path between the gas inlet channel and the gas outlet channel is communicated with the first pressure stabilizing cavity, the throttling opening, the gap and the second pressure stabilizing cavity;
the adjusting component is used for adjusting the valve core to approach or separate from the elastic body, so that the elastic body deforms to change the opening of the throttling port.
According to the scheme, the air pressure is stabilized by controlling the size ratio between the cross section area of the valve core hole and the cavity bottom area of the first pressure stabilizing cavity, and the size-adjustable throttling opening is formed between the elastic body and the gas reversing plate, so that when air flows through the throttling opening, pressure loss is generated, the air outlet channel can output air flow with stable pressure and flow speed, and stable air supply pressure can be provided for the piezoelectric pilot valve; and the gas reversing plate is bent to form a first pressure stabilizing cavity and a second pressure stabilizing cavity, so that the volume of the pressure stabilizing device is greatly reduced, the requirement of integrated miniaturization can be met, and the popularization and application of the proportional valve are greatly improved.
Furthermore, the adjusting component comprises an adjusting rod, the adjusting rod is in threaded connection with the valve body, and the adjusting rod props against the bottom end of the valve core; the valve core is driven to move upwards by screwing the adjusting rod, the valve core drives the elastic body to deform, and the opening degree of a throttling opening between the elastic body and the gas reversing plate can be changed.
Furthermore, the gas reversing plate is bent upwards to form a first bent part surrounding the gas reversing plate, the first bent part is bent outwards to form a first platform part, and the first platform part is contacted with the inner wall of the top end of the inner cavity to form the first pressure stabilizing cavity;
the elastic body is located in the first pressure stabilizing cavity, the air inlet channel is communicated with the first pressure stabilizing cavity, the lower surface of the gas reversing plate is provided with a sealing element, the sealing element is fixed in the inner cavity and is in contact with the lower surface of the gas reversing plate, the bottom end of the valve core is in contact with the sealing element, the lower surface of the gas reversing plate is provided with a communicating groove, the gap is communicated with the communicating groove, and the communicating groove is communicated with the second pressure stabilizing cavity.
Wherein, the quantity, the shape of pressure stabilizing cavity can carry out nimble crooked setting to gas reversing plate according to concrete demand, if the pressure stabilizing cavity has threely, the crooked structure of gas reversing plate as follows:
furthermore, a second bending portion is bent downwards at the edge of the first platform portion, a second platform portion is bent outwards at the edge of the second bending portion, the second platform portion is in contact with the upper surface of the sealing element, a second pressure stabilizing cavity is formed between the first platform portion and the sealing element, a third pressure stabilizing cavity is formed between the second platform portion and the inner wall of the top end of the inner cavity, a communicating hole is formed in the second bending portion, the second pressure stabilizing cavity is communicated with the third pressure stabilizing cavity through the communicating hole, and the third pressure stabilizing cavity is communicated with the air outlet channel.
Furthermore, sealing rings are arranged in the first pressure stabilizing cavity and the third pressure stabilizing cavity, and the sealing rings are in contact with the inner wall of the top end of the inner cavity.
Furthermore, a supporting piece is arranged below the sealing piece, the upper surface of the supporting piece is in contact with the lower surface of the sealing piece, and the adjusting rod is propped against the supporting piece.
Furthermore, an elastic sheet is arranged below the supporting piece, the edge of the supporting piece is bent downwards to form a side edge, the side edge is in contact with the upper surface of the elastic sheet, and the top end of the adjusting rod abuts against the lower surface of the elastic sheet.
Furthermore, a mounting hole is formed in the inner cavity, the elastic body is located at an opening at one end of the mounting hole, and an opening at the other end of the mounting hole is communicated with the air inlet channel.
Furthermore, the elastomer is made of rubber.
Further, the valve body comprises an upper valve body and a lower valve body which are fixedly connected with each other, and the gas reversing plate is clamped and fixed between the upper valve body and the lower valve body.
The invention has the beneficial effects that: the pressure stabilizing device arranged in the proportional valve stabilizes air pressure by controlling the size ratio between the cross section area of the valve core hole and the cavity bottom area of the first pressure stabilizing cavity, and forms a throttle orifice with adjustable size between the elastic body and the gas reversing plate, so that when air flows through the throttle orifice, pressure loss is generated, an air outlet channel can output air flow with stable pressure and flow speed, and stable air supply pressure can be provided for the piezoelectric pilot valve; and the gas reversing plate is bent to form a first pressure stabilizing cavity and a second pressure stabilizing cavity, so that the volume of the pressure stabilizing device is greatly reduced, the requirement of integrated miniaturization can be met, and the popularization and application of the proportional valve are greatly improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a pressure stabilizer built into a proportional valve according to the present invention;
FIG. 2 is an enlarged partial schematic view of A of FIG. 1;
FIG. 3 is an enlarged partial schematic view of B in FIG. 2;
FIG. 4 is a schematic view of a gas reversing plate built into a pressure stabilizer of a proportional valve according to the present invention;
FIG. 5 is a schematic bottom view of the gas diverter plate built into the pressure stabilizer of the proportional valve of the present invention.
In the figure: 1. the valve comprises a valve body, 101, an inner cavity, 102, an upper valve body, 1021, an air inlet channel, 1022, an air outlet channel, 1023, an air inlet, 1024, a mounting hole, 103 and a lower valve body;
2. a gas reversing plate 201, a valve core hole 202, a communication groove 203, a first bending part 204, a first platform part 205, a second bending part 2051, a communication hole 206 and a second platform part;
3. the pressure regulating valve comprises an elastic body, 4 parts of a valve core, 5 parts of a throttling port, 6 parts of a gap, 7 parts of a regulating rod, 8 parts of a first pressure regulating cavity, 9 parts of a second pressure regulating cavity, 10 parts of a third pressure regulating cavity, 11 parts of a sealing piece, 12 parts of a sealing ring, 13 parts of a supporting piece, 1301 parts of a side edge, 14 parts of a spring piece.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
Example 1
As shown in fig. 1-5, a pressure stabilizer built in a proportional valve comprises a gas reversing plate 2, an elastic body 3, a regulating member assembly and a valve core 4, wherein a valve body 1 of the proportional valve is provided with an inner cavity 101, an air inlet channel 1021 and an air outlet channel 1022, and the gas reversing plate 2 is arranged in the inner cavity 101;
the gas reversing plate 2 is bent and matched with the inner cavity 101 to form a first pressure stabilizing cavity 8 and a second pressure stabilizing cavity 9, the elastic body 3 is positioned between the gas reversing plate 2 and the inner wall of the top end of the inner cavity 101, a valve core hole 201 penetrates through the gas reversing plate 2, the valve core 4 penetrates through the valve core hole 201, the top end of the valve core 4 is connected with the elastic body 3, a throttling port 5 is formed between the lower surface of the elastic body 3 and the upper surface of the gas reversing plate 2, a gap 6 communicated with the throttling port 5 is reserved between the valve core 4 and the valve core hole 201, the first pressure stabilizing cavity 8 is communicated with the second pressure stabilizing cavity 9 through the throttling port 5, the area of the cross section of the valve core hole 201 is smaller than the area of the bottom of the first pressure stabilizing cavity 8, and a communication path between the gas inlet channel 1021 and the gas outlet channel 1022 is communicated with the first pressure stabilizing cavity 8, the throttling port 5, the gap 6 and the second pressure stabilizing cavity 9;
the adjusting component is used for adjusting the valve core 4 to approach or separate from the elastic body 3, so that the elastic body 3 deforms to change the opening of the throttling port 5.
The adjusting component in the embodiment comprises an adjusting rod 7, wherein the adjusting rod 7 is in threaded connection with the valve body 1, and the adjusting rod 7 abuts against the bottom end of the valve core 4; the valve core 4 is driven to move upwards by screwing the adjusting rod 7, the valve core 4 drives the elastic body 3 to deform, and the opening degree of the throttling port 5 between the elastic body 3 and the gas reversing plate 2 can be changed.
In the embodiment, the gas reversing plate 2 is bent upwards to form a first bent part 203 surrounding the gas reversing plate 2, the first bent part 203 is bent outwards to form a first platform part 204, and the first platform part 204 is contacted with the inner wall of the top end of the inner cavity 101 to form the first pressure stabilizing cavity 8;
the elastic body 3 is positioned in a first pressure stabilizing cavity 8, the air inlet channel 1021 is communicated with the first pressure stabilizing cavity 8, a sealing element 11 is arranged on the lower surface of the gas reversing plate 2, the sealing element 11 is fixed in the inner cavity 101, the sealing element 11 is contacted with the lower surface of the gas reversing plate 2, the bottom end of the valve core 4 is contacted with the sealing element 11, a communicating groove 202 is formed in the lower surface of the gas reversing plate 2, the gap 6 is communicated with the communicating groove 202, and the communicating groove 202 is communicated with a second pressure stabilizing cavity 9; the sealing member 11 forms a seal under the gas reversing plate 2, and the material thereof may specifically be rubber.
Specifically, an air inlet 1023 is arranged above the inner cavity 101, and an air inlet 1023 in the air inlet passage 1021 is communicated with the first pressure stabilizing cavity 8.
Wherein, the quantity, the shape of pressure stabilizing cavity can be according to specific demand carry out nimble crooked setting to gas reversing plate 2, if the pressure stabilizing cavity has when three, the crooked structure of gas reversing plate 2 as follows:
a second bending part 205 is bent downwards at the edge of the first platform part 204, a second platform part 206 is bent outwards at the edge of the second bending part 205, the second platform part 206 contacts with the upper surface of the sealing element 11, the second pressure stabilizing cavity 9 is formed between the first platform part 204 and the sealing element 11, a third pressure stabilizing cavity 10 is formed between the second platform part 206 and the inner wall of the top end of the inner cavity 101, a communicating hole 2051 is formed in the second bending part 205, the second pressure stabilizing cavity 9 is communicated with the third pressure stabilizing cavity 10 through the communicating hole 2051, and the third pressure stabilizing cavity 10 is communicated with the air outlet channel 1022;
in the embodiment, the outer contour line and the inner contour line of the cross section of the first pressure stabilizing cavity 8 can be square, oval or square; the outer contour line and the inner contour line of the cross section of the second plenum 9 can be square, oval or square; the outer and inner contours of the cross section of the third plenum 10 may be square, elliptical or square;
a plurality of communication grooves 202 may be provided and are distributed at intervals along the circumferential direction of the gas reversing plate 2, specifically, the communication grooves may be distributed at equal intervals along the circumferential direction of the gas reversing plate 2; the number and shape of the communication holes 2051 can be adjusted as needed.
In the embodiment, the first pressure stabilizing cavity 8 and the third pressure stabilizing cavity 10 are both internally provided with a sealing ring 12, and the sealing ring 12 is contacted with the inner wall of the top end of the inner cavity 101; the sealing ring 12 in the first pressure stabilizing cavity 8 can improve the sealing performance between the first pressure stabilizing cavity 8 and the third pressure stabilizing cavity 10, the sealing ring 12 in the third pressure stabilizing cavity 10 can improve the sealing performance between the second pressure stabilizing cavity 9 and the third pressure stabilizing cavity 10, and when the valve body 1 is formed by splicing the upper valve body 102 and the lower valve body 103, the gas in the third pressure stabilizing cavity 10 can be prevented from leaking out from the space between the upper valve body 102 and the lower valve body 103.
In the embodiment, a supporting piece 13 is arranged below the sealing piece 11, the upper surface of the supporting piece 13 is contacted with the lower surface of the sealing piece 11, and the adjusting rod 7 is propped against the supporting piece 13; the sealing element 11 can be better attached to the gas reversing plate 2, so that the second pressure stabilizing cavity 9 is stably sealed; meanwhile, the adjusting rod 7 can be prevented from directly abutting against the sealing element 11 to damage the sealing element 11, and leakage points are prevented.
In this embodiment, an elastic sheet 14 is arranged below the supporting member 13, a side edge 1301 is bent downward at the edge of the supporting member 13, the side edge 1301 contacts with the upper surface of the elastic sheet 14, and the top end of the adjusting lever 7 abuts against the lower surface of the elastic sheet 14.
In the embodiment, a mounting hole 1024 is formed in the inner cavity 101, the elastic body 3 is located at an opening at one end of the mounting hole 1024, and an opening at the other end of the mounting hole 1024 is communicated with the air inlet passage 1021; the gas in the air inlet passage 1021 can generate downward thrust on the elastic body 3 through the mounting hole 1024, which is beneficial to the reset of the elastic body 3.
In this embodiment, the elastic sheet 14 and the holding piece 13 are made of metal; therefore, the elastic sheet 14 and the supporting piece 13 can be elastically deformed, and the valve core 4 can be always relatively attached to the adjusting rod 7.
In this embodiment, the material of the elastomer 3 is rubber.
In the embodiment, the valve body 1 comprises an upper valve body 102 and a lower valve body 103 which are fixedly connected with each other, and the gas reversing plate 2 is clamped and fixed between the upper valve body 102 and the lower valve body 103; the upper valve body 102 and the lower valve body 103 can be fixed by screws, and the edge of the sealing element 11 and the edge of the gas reversing plate 2 can be clamped and fixed between the upper valve body 102 and the lower valve body 103; specifically, the air inlet passage 1021 and the air outlet passage 1022 are formed in the upper valve body 102, and the adjustment rod 7 is threadedly mounted on the lower valve body 103.
In this embodiment, three voltage stabilizing cavities are taken as an example to explain the principle of the voltage stabilizing device:
the gas reaches the first pressure stabilizing cavity 8 from the gas inlet passage 1021 through the gas inlet 1023, then the gas reaches the throttle orifice 5 from the first pressure stabilizing cavity 8, then reaches the gap 6 between the valve core 4 and the valve core hole 201 from the throttle orifice 5, then reaches the communicating groove 202 on the lower surface of the gas reversing plate 2 from the gap 6, then the gas reaches the second pressure stabilizing cavity 9 from the communicating groove 202, then the gas in the second pressure stabilizing cavity 9 reaches the third pressure stabilizing cavity 10 from the communicating hole 2051, and finally the gas in the third pressure stabilizing cavity 10 enters the gas outlet passage 1022 and is output from the gas outlet passage 1022; in the process, when the airflow flows through the throttle 5, pressure loss is generated, so that the pressure of the gas in the gas outlet passage 1022 is lower than that of the gas in the gas inlet passage 1021, and thus, the airflow with stable gas pressure and stable flow rate can be provided for the piezoelectric pilot valve.
Wherein, by screwing the adjusting rod 7, the adjusting rod 7 pushes the spring plate 14 and the supporting piece 13 to move upwards, the supporting piece 13 pushes the sealing piece 11 to move upwards, the sealing piece 11 drives the valve core 4 to move upwards, the valve core 4 pushes the elastic body 3 upwards, the top end of the elastic body 3 is abutted against the inner wall of the top end of the inner cavity 101, so that the elastic body 3 deforms upwards, the deformation of the central position of the elastic body 3 is maximum, the position of the gas reversing plate 2 is constant all the time, and the opening degree of the throttling opening 5 between the elastic body 3 and the gas reversing plate 2 is increased, thereby realizing the increase of the gas pressure in the gas outlet channel 1022;
through unscrewing adjusting lever 7, the pressure that elastomer 3 received becomes lower, and the deflection of elastomer 3 reduces, and elastomer 3 relies on the elasticity of self and the gaseous effort to elastomer 3 in the inlet channel 1021 to move down, and case 4 passes through sealing member 11 and drives and hold 13 and shell fragment 14 and move down, makes shell fragment 14 keep contacting with the top of adjusting lever 7, and the aperture of the throttle mouth 5 between elastomer 3 and the gas reversing plate 2 diminishes to the realization reduces the gas pressure in outlet channel 1022.
When gas flows through the throttle 5, pressure loss is generated, so that the pressure P1 at the air inlet passage 1021 of the gas pressure valve body 1 is changed into the pressure P2 at the air outlet passage 1022 of the valve body 1, P2 is smaller than P1, P2 is the required stable air pressure, and P1 has differences under different use environments and the air cannot be compressed:
Δp1: fluctuation amount (Pa) of input pressure P1
Δp2: fluctuation amount (Pa) of output pressure P2
A1: area of cavity bottom (m) of first pressure-stabilizing cavity 82)
A0: cross-sectional area (m) of spool bore 2012)
According to the above formula, in order to make Δ p2If the value of (A) is small, then A is required1Is far greater than A0Taking A1≥121A0I.e. Δ p1Δ p at 120Pa2Is 1Pa, so can be controlled by controlling A1And A0To stabilize the P2 value.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides an interior voltage regulator device who places proportional valve which characterized in that: the proportional valve comprises a gas reversing plate (2), an elastic body (3), a regulating part assembly and a valve core (4), wherein an inner cavity (101), an air inlet channel (1021) and an air outlet channel (1022) are formed in a valve body (1) of the proportional valve, and the gas reversing plate (2) is arranged in the inner cavity (101);
the gas reversing plate (2) is bent and matched with the inner cavity (101) to form a first pressure stabilizing cavity (8) and a second pressure stabilizing cavity (9), the elastic body (3) is located between the gas reversing plate (2) and the inner wall of the top end of the inner cavity (101), a valve core hole (201) penetrates through the gas reversing plate (2), the valve core (4) penetrates through the valve core hole (201), the top end of the valve core (4) is connected with the elastic body (3), a throttling port (5) is formed between the lower surface of the elastic body (3) and the upper surface of the gas reversing plate (2), a gap (6) communicated with the throttling port (5) is reserved between the valve core (4) and the valve core hole (201), the first pressure stabilizing cavity (8) and the second pressure stabilizing cavity (9) are communicated through the throttling port (5), the area of the cross section of the valve core hole (201) is smaller than the area of the bottom of the first pressure stabilizing cavity (8), and the communication path between the gas inlet channel (1021) and the gas outlet channel (1022) is communicated with the first pressure stabilizing cavity (8), A throttling orifice (5), a gap (6) and a second pressure stabilizing cavity (9);
the adjusting component is used for adjusting the valve core (4) to approach or separate from the elastic body (3) so that the elastic body (3) deforms to change the opening of the throttling port (5).
2. The pressure stabilizer built in the proportional valve according to claim 1, wherein: the adjusting piece component comprises an adjusting rod (7), the adjusting rod (7) is in threaded connection with the valve body (1), and the adjusting rod (7) abuts against the bottom end of the valve core (4).
3. The pressure stabilizer built in the proportional valve according to claim 2, wherein: the gas reversing plate (2) is bent upwards to form a first bent part (203) surrounding the gas reversing plate (2), the first bent part (203) is bent outwards to form a first platform part (204), and the first platform part (204) is contacted with the inner wall of the top end of the inner cavity (101) to form the first pressure stabilizing cavity (8);
the gas reversing valve is characterized in that the elastic body (3) is located in a first pressure stabilizing cavity (8), the gas inlet channel (1021) is communicated with the first pressure stabilizing cavity (8), a sealing piece (11) is arranged on the lower surface of the gas reversing plate (2), the sealing piece (11) is fixed in the inner cavity (101), the sealing piece (11) is contacted with the lower surface of the gas reversing plate (2), the bottom end of the valve core (4) is contacted with the sealing piece (11), a communicating groove (202) is formed in the lower surface of the gas reversing plate (2), the gap (6) is communicated with the communicating groove (202), and the communicating groove (202) is communicated with the second pressure stabilizing cavity (9).
4. The pressure stabilizer built in the proportional valve according to claim 3, wherein: the edge of the first platform part (204) is downwards bent to form a second bent part (205), the edge of the second bent part (205) is outwards bent to form a second platform part (206), the second platform part (206) is in contact with the upper surface of the sealing element (11), a second pressure stabilizing cavity (9) is formed between the first platform part (204) and the sealing element (11), a third pressure stabilizing cavity (10) is formed between the second platform part (206) and the inner wall of the top end of the inner cavity (101), a communicating hole (2051) is formed in the second bent part (205), the second pressure stabilizing cavity (9) is communicated with the third pressure stabilizing cavity (10) through the communicating hole (2051), and the third pressure stabilizing cavity (10) is communicated with the air outlet channel (1022).
5. The pressure stabilizer built in the proportional valve according to claim 4, wherein: and sealing rings (12) are arranged in the first pressure stabilizing cavity (8) and the third pressure stabilizing cavity (10), and the sealing rings (12) are contacted with the inner wall of the top end of the inner cavity (101).
6. The pressure stabilizer built in the proportional valve according to claim 3, wherein: a supporting piece (13) is arranged below the sealing piece (11), the upper surface of the supporting piece (13) is contacted with the lower surface of the sealing piece (11), and the adjusting rod (7) is propped against the supporting piece (13).
7. The pressure stabilizer built in the proportional valve according to claim 6, wherein: an elastic sheet (14) is arranged below the supporting piece (13), the edge of the supporting piece (13) is bent downwards to form a side edge (1301), the side edge (1301) is in contact with the upper surface of the elastic sheet (14), and the top end of the adjusting rod (7) abuts against the lower surface of the elastic sheet (14).
8. The pressure stabilizer built in the proportional valve according to claim 1, wherein: the air inlet structure is characterized in that a mounting hole (1024) is formed in the inner cavity (101), the elastic body (3) is located at an opening at one end of the mounting hole (1024), and an opening at the other end of the mounting hole (1024) is communicated with the air inlet channel (1021).
9. The pressure stabilizer built in the proportional valve according to claim 1, wherein: the elastomer (3) is made of rubber.
10. The pressure stabilizer built in the proportional valve according to claim 1, wherein: the valve body (1) comprises an upper valve body (102) and a lower valve body (103) which are fixedly connected with each other, and the gas reversing plate (2) is clamped and fixed between the upper valve body (102) and the lower valve body (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010824808.7A CN112081987B (en) | 2020-08-17 | 2020-08-17 | Pressure stabilizer built in proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN112081987B true CN112081987B (en) | 2022-03-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201547362U (en) * | 2010-03-08 | 2010-08-11 | 中山华帝燃具股份有限公司 | Special pressure stabilizing valve for gas torch |
| CN204533704U (en) * | 2015-01-20 | 2015-08-05 | 中国石油天然气股份有限公司 | Burning line throttling stable-pressure device |
| CN107091354A (en) * | 2017-06-28 | 2017-08-25 | 哈尔滨工程大学 | Fuel gas injection valve is oriented in a kind of piezoelectric type of through type axial admission |
| EP3220022A1 (en) * | 2016-03-14 | 2017-09-20 | Neoperl GmbH | Flow quantity controller unit |
| CN110360324A (en) * | 2019-07-02 | 2019-10-22 | 四川杰特机器有限公司 | A kind of multistage gap throttling pressure regulator valve |
| CN110608305A (en) * | 2018-06-15 | 2019-12-24 | 芜湖美的厨卫电器制造有限公司 | Gas valve device and gas water heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10104622B4 (en) * | 2001-02-02 | 2014-05-22 | Robert Bosch Gmbh | Hydraulic pressure control valve |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201547362U (en) * | 2010-03-08 | 2010-08-11 | 中山华帝燃具股份有限公司 | Special pressure stabilizing valve for gas torch |
| CN204533704U (en) * | 2015-01-20 | 2015-08-05 | 中国石油天然气股份有限公司 | Burning line throttling stable-pressure device |
| EP3220022A1 (en) * | 2016-03-14 | 2017-09-20 | Neoperl GmbH | Flow quantity controller unit |
| CN107091354A (en) * | 2017-06-28 | 2017-08-25 | 哈尔滨工程大学 | Fuel gas injection valve is oriented in a kind of piezoelectric type of through type axial admission |
| CN110608305A (en) * | 2018-06-15 | 2019-12-24 | 芜湖美的厨卫电器制造有限公司 | Gas valve device and gas water heater |
| CN110360324A (en) * | 2019-07-02 | 2019-10-22 | 四川杰特机器有限公司 | A kind of multistage gap throttling pressure regulator valve |
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| CN112081987A (en) | 2020-12-15 |
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Effective date of registration: 20240624 Address after: Room 301, 3rd Floor, South Building, Huiyan Building, Changzhou Science and Education City, No. 18 Changwu Middle Road, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee after: Changzhou Gaokai Electronics Co.,Ltd. Country or region after: China Address before: Room 903, 9 / F, No.1 Lane 683, Shenhong Road, Xinhong street, Minhang District, Shanghai 201100 Patentee before: Felton Technology (Shanghai) Co.,Ltd. Country or region before: China |