CN104251325A - Pressure operating valve and pressure setting method of pressure operating valve - Google Patents
Pressure operating valve and pressure setting method of pressure operating valve Download PDFInfo
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- CN104251325A CN104251325A CN201410208762.0A CN201410208762A CN104251325A CN 104251325 A CN104251325 A CN 104251325A CN 201410208762 A CN201410208762 A CN 201410208762A CN 104251325 A CN104251325 A CN 104251325A
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Safety Valves (AREA)
Abstract
The invention provides a pressure operating valve which sets pressure through deformation of a membrane (41) to open a valve, and can set pressure with high precision through simple constructions. The membrane (41), a cylindrical lower cover (42) and an upper cover (43) are integrated to form an elastic component assembly body (4). The periphery of a valve main body (1) is provided with an external thread part (1a); an inner circumferential surface of the lower cover (42) is provided with an inner thread part (62a). A valve body (2) formed by a ball valve (21) and a valve rod (22) is configured in a valve chamber (14). The ball valve (21) is against a valve base (13a); through applied force, a flat part (41b) of the membrane (41) is against the valve rod. The elastic component assembly body (4) is screwed into the valve main body to adjust force of the membrane (41) pressing the valve body (2), thereby adjusting setting pressure according to screwing quantity.
Description
Technical field
The present invention relates to and utilize the elastic force of the elastic member such as bellows, diaphragm to carry out close port, and utilize the pressure of the fluid preset to make elastic member start to be out of shape and open wide the establishing method of the pressure-operated valve of valve port and the setting pressure of pressure-operated valve.
Background technique
In the past, as this pressure-operated valve, such as, there is the valve disclosed in Japanese Unexamined Patent Publication 6-229481 publication (patent documentation 1).The pressure-operated valve of this patent documentation 1 is provided with the ball valve of taking a seat relative to valve seat/disseating and as to the bellows of this ball valve to the elastic member of valve seat side reinforcing in the valve chamber of valve body.Further, be that the pressure that presets is (hereinafter referred to as " setting pressure " at the pressure of the fluid flowed into from intake channel.) below time, ball valve is always the state (valve closing state) be seated on valve seat, and when the pressure of the fluid flowed into from intake channel exceedes setting pressure, bellows contract, ball valve disseats from valve seat, and fluid flows out from outlet pipe.In addition, to arrange the free end of bellows to the bar of ball valve side reinforcing and adjustment spring in the cylinder stretched out from valve chamber, utilize the decrement of adjustment screw to this adjustment spring to adjust, set above-mentioned setting pressure.
In addition, the pressure-operated valve of diaphragm is used to be disclosed in such as utility model registration No. 3151299 publication (patent documentation 2), Japanese Unexamined Patent Publication 2006-77823 publication (patent documentation 3), Japanese Unexamined Patent Publication 2009-243607 publication (patent documentation 4) as starting the elastic member of valve opening because the pressure of fluid exceedes setting pressure.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 6-229481 publication
Patent documentation 2: utility model registration No. 3151299 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2006-77823 publication
Patent documentation 4: Japanese Unexamined Patent Publication 2009-243607 publication
Summary of the invention
Invent problem to be solved
The pressure-operated valve of patent documentation 1 to become via helical spring to adjust the structure of power, the i.e. setting pressure of bellows pressing ball valve, therefore needs helical spring etc., there is the problem that parts number of packages becomes many and so on.In addition, setting pressure affects by the elastic force both sides of helical spring elastic force and bellows, is therefore difficult to the inching carrying out setting pressure.
In addition, the pressure-operated valve of patent documentation 2 to 4 is not the structure that can adjust setting pressure, and setting pressure is designed by the shape of diaphragm, piece number, wall thickness etc., determine when manufacturing.Therefore, be difficult to set setting pressure accurately according to Environmental Conditions etc., still have the leeway of improvement.
Problem of the present invention is utilizing the distortion of the elastic member such as bellows, diaphragm to start in the pressure-operated valve of valve opening with setting pressure, can set accurately simply to construct to setting pressure.
For solving the scheme of problem
The pressure-operated valve of scheme 1 possesses: the valve body being formed with the valve port making the direction of flow second side joint flowed into from first side joint, the elastic member that can be out of shape on the axial direction of above-mentioned valve port, and the columnar cylinder part centered by above-mentioned axis, by above-mentioned valve body, above-mentioned elastic member and above-mentioned cylinder part delimit the pressure chamber with above-mentioned first side fittings, when pressure in above-mentioned pressure chamber is below setting pressure, the active force of above-mentioned elastic member is utilized to make valve portion abut with the valve seat around above-mentioned valve port and make above-mentioned valve port be in valve closing state, when the pressure of above-mentioned pressure chamber exceedes setting pressure, above-mentioned elastic member distortion, above-mentioned valve portion leaves from above-mentioned valve seat and makes above-mentioned valve port be in valve opening state, the feature of above-mentioned pressure-operated valve is, above-mentioned elastic member is fixed on this cylinder part in the mode can be out of shape on the axial direction of above-mentioned cylinder part and is formed elastic member assembly body, the above-mentioned cylinder part of above-mentioned elastic member assembly body and above-mentioned valve body is fitted together to from above-mentioned axial direction, above-mentioned elastic member assembly body is fixed on above-mentioned valve body by the state abutted with above-mentioned valve seat in order to making above-mentioned valve portion with the active force of above-mentioned elastic member.
The pressure-operated valve of pressure-operated valve according to scheme 1 of scheme 2, it is characterized in that, by internal thread centered by above-mentioned axis of the above-mentioned cylinder part of above-mentioned elastic member assembly body and above-mentioned valve body and to be externally threadedly screwed, thus above-mentioned cylinder part and above-mentioned valve body are fitted together to.
The pressure-operated valve of pressure-operated valve according to scheme 1 or 2 of scheme 3, it is characterized in that, the valve chamber and the valve inserting hole that are communicated to above-mentioned pressure chamber from above-mentioned valve port is formed at above-mentioned valve body, above-mentioned valve portion is the valve body that can slide on above-mentioned axial direction in above-mentioned valve inserting hole, and this valve body is afterburning to above-mentioned elastic member side.
The pressure-operated valve of pressure-operated valve according to scheme 3 of scheme 4, it is characterized in that, above-mentioned valve body makes valve rod and ball valve be integrated and form, in above-mentioned valve chamber and above-mentioned inserting hole, above-mentioned valve rod is configured in above-mentioned elastic member side, above-mentioned ball valve is configured in above-mentioned valve seat side, and above-mentioned ball valve can abut with above-mentioned valve seat.
The pressure-operated valve of pressure-operated valve according to scheme 1 or 2 of scheme 5, is characterized in that, be configured in by above-mentioned valve seat in above-mentioned pressure chamber, using the par of the central authorities of above-mentioned elastic member as above-mentioned valve portion.
The establishing method of the setting pressure of the pressure-operated valve of scheme 6 is establishing methods of the setting pressure of following pressure-operated valve, and this pressure-operated valve is configured to be possessed: the valve body being formed with the valve port making the direction of flow second side joint flowed into from first side joint, columnar cylinder part centered by the axis of above-mentioned valve port, and the elastic member that can on above-mentioned axial direction be out of shape arranged opposite relative to the cylinder space of above-mentioned cylinder part, and utilize the active force of above-mentioned elastic member abut with the valve seat around above-mentioned valve port and make above-mentioned valve port be in the valve portion of valve closing state, above-mentioned elastic member is out of shape because of the pressure of above-mentioned pressure chamber, thus above-mentioned valve portion makes above-mentioned valve port be in valve opening state, the setting pressure that the above-mentioned valve portion that the establishing method of above-mentioned setting pressure sets this pressure-operated valve is left from above-mentioned valve seat, the feature of the establishing method of above-mentioned setting pressure is, above-mentioned elastic member is fixed on this cylinder part in the mode can be out of shape on the axial direction of above-mentioned cylinder part and is formed elastic member assembly body, according to above-mentioned elastic member assembly body and the relative displacement amount of above-mentioned valve body at axial direction, set the above-mentioned setting pressure of above-mentioned pressure-operated valve.
Effect of the present invention is as follows.
According to the pressure-operated valve of scheme 1, under the state that the cylinder part of elastic member assembly body is chimeric with valve body, by adjustment elastic member assembly body and valve body at the relative shift of axial direction, thus setting pressure can be adjusted according to this displacement amount, therefore, it is possible to easily set setting pressure.
According to the pressure-operated valve of scheme 2, except the effect of scheme 1, when the setting of setting pressure, by internal thread and externally threaded being screwed, elastic member assembly body is screwed in valve body, thus setting pressure can be adjusted according to this screw-in amount, therefore, it is possible to set setting pressure accurately.
According to the pressure-operated valve of scheme 3, except the effect of scheme 1 or 2, guide because valve rod is inserted through hole, therefore valve rod is along axial sliding movement, and valve port can be made reliably to be in valve closing state.
According to the pressure-operated valve of scheme 4, except the effect of scheme 3, utilize ball valve to the centripetence of valve seat, valve port can be made reliably to be in valve closing state.
According to the pressure-operated valve of scheme 5, except the effect of scheme 1 or 2, owing to utilizing the direct opening and closing valve port in the par of elastic member, therefore parts number of packages also tails off, and becomes simple structure.
According to the establishing method of the setting pressure of the pressure-operated valve of scheme 6, identical with scheme 1, by adjustment elastic member assembly body and the relative displacement amount of valve body at axial direction, thus can set setting pressure according to this displacement amount, therefore, it is possible to easily set setting pressure.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of the pressure-operated valve of the first mode of execution of the present invention.
Fig. 2 is amplification plan view and the amplification view of detailed construction before the assembling of the diaphragm of the pressure-operated valve representing mode of execution.
Fig. 3 is the longitudinal sectional view of the pressure-operated valve of the second mode of execution of the present invention.
Fig. 4 is the figure of other examples of the valve body of the pressure-operated valve being applicable to the first mode of execution.
In figure:
1-valve body, 1a-external thread part, 11a-first side joint, 12a-second side joint, 13-valve port, 13a-valve seat, 14-valve chamber, 14a-valve inserting hole, L-axis, 2-valve body (valve portion), 21-ball valve, 22-valve rod, 3-helical spring, 4-elastic member assembly body, 41-diaphragm (elastic member), 42-lower cover (cylinder part), 42a-internal thread part, A1-pressure chamber, 5-valve body, 5a-external thread part, 51a-first side joint, 52a-second side joint, 53-valve port, 53a-valve seat, 6-elastic member assembly body, 61-diaphragm (elastic member), 61b-par (valve portion), 62-lower cover (cylinder part), 62a-internal thread part, A2-pressure chamber.
Embodiment
Be described referring to the mode of execution of accompanying drawing to pressure-operated valve of the present invention.Fig. 1 is the longitudinal sectional view of the pressure-operated valve of the first mode of execution.The pressure-operated valve of this mode of execution has the valve body 1 that profile is substantial cylindrical shape.Pipe arrangement attachment hole 11, pipe arrangement attachment hole 12, valve port 13, valve chamber 14, valve inserting hole 14a that diameter is identical with valve chamber 14, first side mouth 15, spring housing 16 and balancing orifice 17 is formed at valve body 1.The first side joint 11a flowed into as arrow for fluid is installed at pipe arrangement attachment hole 11.In addition, be provided with the second side joint 12a flowed out as arrow for flow graph at pipe arrangement attachment hole 12, the inner circumferential of valve port 13 side of second side joint 12a becomes second side mouth 12a1.In addition, first side joint 11a and second side joint 12a is assembled into one with valve body 1 by soldering.First side joint 11a is communicated with valve chamber 14 via first side mouth 15, and second side joint 12a is communicated with valve chamber 14 via valve port 13.In addition, first side mouth 15 is communicated with spring housing 16 via balancing orifice 17.In addition, valve port 13 is holes (section is circular hole) of the drum centered by axis L.
Valve chamber 14, valve inserting hole 14a and spring housing 16 by from valve body 1 with the end break-through of second side mouth 12 opposite side and being formed, in valve chamber 14 and valve inserting hole 14a, be equipped with the valve body 2 as " valve portion ".Valve body 2 is made up of ball valve 21 and columned valve rod 22, and ball valve 21 is fitted and fixed with in centering recess 22a in the end of valve rod 22.Spring housing 16 is formed as the deep trouth of ring-type around valve chamber 14 and valve inserting hole 14a, in this spring housing 16, be equipped with helical spring 3.Be fixed with the spring bracket 22b of chimb shape at valve rod 22, helical spring 3 is compressed between the bottom of spring housing 16 and spring bracket 22b.Thus, helical spring 3 pairs of valve bodies 2 are afterburning to diaphragm 41 side described later, push valve rod 22 to diaphragm 41.Valve inserting hole 14a (and valve chamber 14) is the drum consistent with valve rod 22, and valve rod 22 can correctly slide in the direction of the axisl in valve inserting hole 14a.In addition, if the power that helical spring 3 couples of spring bracket 22b apply is set to F, the pressure of first side during valve closing is set to PD, the pressure of second side is set to Ps, the section area of valve port 13 is set to S, then the elastic force of helical spring 3 is set as F < (PD-Ps) × S, and, be when diaphragm 41 is out of shape as described later like that, valve body 2 can the more weak elastic force of the degree of movement in the direction of the axisl thereupon.
Valve body 1 with second side joint 12a opposite side, elastic member assembly body 4 is installed.Elastic member assembly body 4 possesses the diaphragm 41 as " elastic member ", the lower cover 42 as " cylinder part " and discoid upper cover 43.Further, soldered and be fixed as one by the peripheral part shown in dashdotted ellipse at Fig. 1 of diaphragm 41, lower cover 42 and upper cover 43.
Fig. 2 is amplification plan view and the amplification view of detailed construction before the assembling representing diaphragm 41.The discoid solid of rotation that diaphragm 41 is is rotating center with axis L, is made up of metal leaf spring.And have: be configured to circular cone shape and the conus portion 41a in a little spherically face of shape; Be positioned at the par 41b of the inner central of conus portion 41a; And be positioned at the lip part 41c of periphery of conus portion 41a.
Lower cover 42 as " cylinder part " is configured to the substantially cylindrical shape centered by axis L, relative to the diaphragm 41 arranged opposite of the cylinder space inside it, is delimited the pressure chamber A1 be communicated with spring housing 16 by valve body 1, diaphragm 41 and lower cover 42.In addition, diaphragm 41 can be out of shape in the direction of the axisl relative to lower cover 42.Pressure chamber A1 is communicated with first side joint 11a via spring housing 16, balancing orifice 17 and first side mouth 15.
Be formed with the external thread part 1a centered by axis L in the upper periphery of valve body 1, be formed with the internal thread part 42a centered by axis L at the inner peripheral surface of lower cover 42.Further, by the internal thread part 42a of the lower cover 42 and external thread part 1a of valve body 1 is screwed, thus elastic member assembly body 4 is arranged on valve body 1.In addition, at the weld part 421 of the lower end of lower cover 42, secures resilient member assembly body 4 and valve body 1.In addition, seal by being configured in the sealed member formed than weld part 421 O RunddichtringO 18 in the inner part, PTFE (teflon) etc. between valve body 1 and lower cover 42.
According to above structure, fluid flows into from first side joint 11a, and this fluid applies pressure via first side mouth 15, space between valve inserting hole 14a and valve rod 22, balancing orifice 17, spring housing 16 and pressure chamber A1 to diaphragm 41.When this pressure is below setting pressure, diaphragm 41 is indeformable, but pushes valve rod 22 by the active force of diaphragm 41, and ball valve 21 is pushed to the valve seat 13a of the surrounding of valve port 13, becomes the valve closing state of Fig. 1.In addition, the fluid flowed into from first side joint 11a flows into from first side mouth 15 to valve chamber 14, but under the state of Fig. 1, ball valve 21 close port 13, fluid can not flow to second side joint 12a.
On the other hand, if the pressure of fluid uprises, the pressure of pressure chamber A1 exceedes setting pressure, then diaphragm 41 is out of shape in the direction of the axisl, and the distortion that valve body 2 follows diaphragm 41 because of the elastic force of helical spring 3 is moved in the direction of the axisl.Thus, ball valve 21 leaves from valve seat 13a, and valve port 13 becomes valve opening state, and the fluid of valve chamber 14 starts to flow to second side joint 12a from valve port 13.Further, the pressure of pressure chamber A1 is higher, and the interval of ball valve 21 and valve seat 13a is wider, and the amount flowing to the fluid of second side joint 12a increases.
Fixture hole 43a is formed at the upper cover 43 of elastic member assembly body 4, utilize before weld part 421 is fixed at lower cover 42, make fixture be sticked in fixture hole 43a and rotate elastic member assembly body 4, thus this elastic member assembly body 4 can be made to move in the direction of the axisl relative to valve body 1.Namely, by elastic member assembly body 4 screw in valve body 1, utilize the active force of this diaphragm 41 that diaphragm 41 is abutted with valve body 2 (valve rod 22).By adjusting this screw-in amount relative displacement amount of valve body 1 (the elastic member assembly body 4 with), the power that diaphragm 41 presses valve body 2 can be adjusted, therefore, it is possible to adjust according to the pressure of pressure chamber A1 pressure, the i.e. setting pressure that valve port 13 starts to open.
In addition, when adjusting this setting pressure, the fluid that pressure is the setting pressure be equivalent to as target is supplied from first side joint 11a, by screwing in elastic member assembly body 4, become the moment (moment from second side joint 12a not effluent fluid) of valve closing state at valve port 13, stop the screw-in operation of elastic member assembly body 4.Then, at above-mentioned weld part 421, secures resilient member assembly body 4 and valve body 1.Like this, by the relative shift of adjustment elastic member assembly body 4 with the axis L direction of valve body 1, thus the setting operation of adjustment setting pressure becomes easy.The adjustment of this setting pressure also can be carried out as follows, namely, temporarily screw in elastic member assembly body 4 with established amount and be in valve closing state, the fluid that pressure is the setting pressure be equivalent to as target is supplied from first side joint 11a, unclamp screw thread gradually, the moment moment of effluent fluid (from the second side joint) of valve opening state is become at valve port 13, stop the screwing operation of elastic member assembly body 4, weld.
In this first mode of execution, owing to utilizing the ball valve 21 of valve body 2 to close the valve port 13 of drum, therefore, it is possible to utilize ball valve 21 to make valve port 13 reliably be in valve closing state relative to the centripetence of valve seat 13a.In addition, owing to making valve rod 22 slide in valve inserting hole 14a, therefore valve body 2 correctly slides along axis L, thus the valve opening precision of valve opening state can be made good.
In the above-described first embodiment, valve body 2 comprises ball valve 21 and valve rod 22, but also can be such as the valve body shown in Fig. 4.No matter be which kind of valve body all has the cylindrical portion being equivalent to above-mentioned valve rod 22.Further, the valve body of Fig. 4 (A) makes the lower end of valve port side be spherical valve body.The valve body of Fig. 4 (B) makes the lower end of valve port side be the valve body of needle-like.The valve body of Fig. 4 (C) makes the lower end of valve port side be the valve body of the tabular surface abutted with valve seat 13a.
Fig. 3 is the longitudinal sectional view of the pressure-operated valve of the second mode of execution.The pressure-operated valve of this mode of execution has the valve body 5 that profile is substantial cylindrical shape.Pipe arrangement attachment hole 51, pipe arrangement attachment hole 52, valve port 53, first side mouth 54 and second side mouth 55 is formed at valve body 5.At pipe arrangement attachment hole 51, the first side joint 51a that fluid flows into as arrow is installed, at pipe arrangement attachment hole 52, the second side joint 52a that fluid flows out as arrow is installed.In addition, first side joint 51a and second side joint 52a is assembled into one by soldering and valve body 5.In addition, valve port 53 is holes that the cross section centered by axis L is circle.
In the periphery of valve body 5, elastic member assembly body 6 is installed.Elastic member assembly body 6 possesses the diaphragm 61 as " elastic member ", the lower cover 62 as " cylinder part " and discoid upper cover 63.Further, soldered and be fixed as one by the peripheral part shown in dashdotted ellipse at Fig. 1 of diaphragm 61, lower cover 62 and upper cover 63.
Diaphragm 41 shown in diaphragm 61 with above-mentioned Fig. 2 is identical, is the discoid solid of rotation that is rotating center with axis L, is made up of metal leaf spring.And have: be configured to circular cone shape and the conus portion 61a in a little spherically face of shape; Be positioned at the par 61b as " valve portion " of the inner central of conus portion 61a; And be positioned at the lip part 61c of periphery of conus portion 61a.
Lower cover 62 as " cylinder part " is configured to the substantially cylindrical shape centered by axis L, relative to the diaphragm 61 arranged opposite of the cylinder space inside it, delimits pressure chamber A2 by valve body 5, diaphragm 61 and lower cover 62.In addition, diaphragm 61 can be out of shape in the direction of the axisl relative to lower cover 62.Pressure chamber A2 is communicated with first side joint 51a via first side mouth 54.In addition, valve port 53 is communicated with second side joint 52a via second side mouth 55.The surrounding of the A2 side, pressure chamber of valve port 53 becomes valve seat 53a outstanding in pressure chamber A2, and the par 61b of diaphragm 61 abuts with this valve seat 53a.
Be formed with the external thread part 5a centered by axis L in the upper periphery of valve body 5, be formed with the internal thread part 62a centered by axis L at the inner peripheral surface of lower cover 62.Further, by the internal thread part 62a of the lower cover 62 and external thread part 5a of valve body 5 is screwed, thus elastic member assembly body 6 is arranged on valve body 5.In addition, at the weld part 621 of the lower end of lower cover 62, elastic member assembly body 6 and valve body 5 are fixed.In addition, seal than weld part 621 O RunddichtringO 58 more in the inner part by being disposed between valve body 5 and lower cover 62.
According to above structure, fluid flows into from first side joint 51a, and this fluid applies pressure via first side mouth 54 and pressure chamber A2 to diaphragm 61.When this pressure is below setting pressure, diaphragm 61 is indeformable, and par 61b is pushed to valve seat 53a by the active force of diaphragm 61, becomes the valve closing state of Fig. 3.Thus, the fluid of pressure chamber A2 does not flow to valve port 53 and second side joint 52a.
On the other hand, the pressure of fluid uprises, if the pressure of pressure chamber A2 exceedes setting pressure, then diaphragm 61 is out of shape, and par 61b leaves from valve seat 53a, becomes valve opening state.Thus, the fluid of pressure chamber A2 starts to flow to second side joint 52a from valve port 53.Further, the pressure of pressure chamber A2 is higher, and the interval of par 61b and valve seat 53a is wider, and the amount flowing to the fluid of second side joint 52a increases.
Fixture hole 63a is formed at the upper cover 63 of elastic member assembly body 6, utilize before weld part 621 is fixed at lower cover 62, make fixture be sticked in fixture hole 63a and rotate elastic member assembly body 6, this elastic member assembly body 6 can be made to move in the direction of the axisl relative to valve body 5.Namely, by elastic member assembly body 6 screw in valve body 5, utilize the active force of this diaphragm 61 that diaphragm 61 is abutted with valve seat 53a.By adjusting this screw-in amount relative displacement amount of valve body 1 (the elastic member assembly body 6 with), the par 61b that can adjust diaphragm 61 presses the power of valve seat 53a, therefore, it is possible to adjust according to the pressure of pressure chamber A2 pressure, the i.e. setting pressure that valve port 53 starts to open.
In this second embodiment, when adjusting setting pressure, the fluid of the setting pressure as target is equivalent to from first side joint 51a supply pressure, screw in elastic member assembly body 6, thus the moment (moment from second side joint 52a not effluent fluid) of valve closing state is become at valve port 53, stop the screw-in operation of elastic member assembly body 6.Then, at above-mentioned weld part 621, secures resilient member assembly body 6 and valve body 5.Like this, by the relative displacement amount of adjustment elastic member assembly body 6 with the axis L direction of valve body 5, the setting operation of adjustment setting pressure becomes easy.
In this second embodiment, owing to becoming the structure of the direct opening and closing valve port 53 of the par 61b utilizing diaphragm 61, therefore compare the first mode of execution, parts number of packages is also few, becomes simple structure.
As mentioned above, in each mode of execution, when the setting of setting pressure, by internal thread and externally threaded being screwed, elastic member assembly body (4,6) is screwed in valve body (1,5), setting pressure can be adjusted, therefore, it is possible to set setting pressure accurately according to this screw-in amount.
In above each mode of execution, to forming external thread part in valve body side, being illustrated at the example of elastic member assembling side formation internal thread part, but also can be configured to form internal thread part in the inner side of valve body, form external thread part in the outside of elastic member assembly body, by being screwed of this internal thread part and external thread part, elastic member assembly body is arranged on valve body.
In addition, in each mode of execution, be configured to by external thread part and being screwed of internal thread part, elastic member assembly body and valve body are fitted together to, but also can be configured to, there is no external thread part and internal thread part, the cylindrical part and valve body of elastic member assembly body are respectively formed at cylndrical surface mutually chimeric on axial direction, are mutually fitted together in the axial direction with these cylndrical surface.In this situation, when adjusting setting pressure, use the fixture keeping elastic member assembly body and valve body, while supply from first side joint the fluid that pressure is the setting pressure be equivalent to as target, while the relative displacement amount of adjustment elastic member assembly body and the axial direction of valve body, when valve port becomes valve closing state, fixing above-mentioned displacement amount.Then, at weld part, secures resilient member assembly body and valve body.Like this, the setting operation adjusting setting pressure becomes easy.
In addition, in each mode of execution, the situation that elastic member is diaphragm is illustrated, but this elastic member also can be bellows etc.
Claims (6)
1. a pressure-operated valve, possesses: the valve body being formed with the valve port making the direction of flow second side joint flowed into from first side joint; The elastic member that can be out of shape on the axial direction of above-mentioned valve port; And the columnar cylinder part centered by above-mentioned axis,
The pressure chamber with above-mentioned first side fittings delimited by above-mentioned valve body, above-mentioned elastic member and above-mentioned cylinder part, when pressure in above-mentioned pressure chamber is below setting pressure, the active force of above-mentioned elastic member is utilized to make valve portion abut with the valve seat around above-mentioned valve port and make above-mentioned valve port be in valve closing state, when the pressure of above-mentioned pressure chamber exceedes setting pressure, above-mentioned elastic member distortion, above-mentioned valve portion leaves from above-mentioned valve seat and makes above-mentioned valve port be in valve opening state
The feature of above-mentioned pressure-operated valve is,
Above-mentioned elastic member is fixed on this cylinder part in the mode can be out of shape on the axial direction of above-mentioned cylinder part and is formed elastic member assembly body, be fitted together to the above-mentioned cylinder part of above-mentioned elastic member assembly body and above-mentioned valve body from above-mentioned axial direction, above-mentioned elastic member assembly body is fixed on above-mentioned valve body by the state abutted with above-mentioned valve seat in order to making above-mentioned valve portion with the active force of above-mentioned elastic member.
2. pressure-operated valve according to claim 1, is characterized in that,
By internal thread centered by above-mentioned axis of the above-mentioned cylinder part of above-mentioned elastic member assembly body and above-mentioned valve body and to be externally threadedly screwed, thus above-mentioned cylinder part and above-mentioned valve body are fitted together to.
3. pressure-operated valve according to claim 1 and 2, is characterized in that,
Be formed with the valve chamber and the valve inserting hole that are communicated to above-mentioned pressure chamber from above-mentioned valve port at above-mentioned valve body, above-mentioned valve portion is the valve body that can slide on above-mentioned axial direction in above-mentioned valve inserting hole, and this valve body is afterburning to above-mentioned elastic member side.
4. pressure-operated valve according to claim 3, is characterized in that,
Above-mentioned valve body makes valve rod and ball valve be integrated and form, and in above-mentioned valve chamber and above-mentioned inserting hole, above-mentioned valve rod is configured in above-mentioned elastic member side, and above-mentioned ball valve is configured in above-mentioned valve seat side, and above-mentioned ball valve can abut with above-mentioned valve seat.
5. pressure-operated valve according to claim 1 and 2, is characterized in that,
Above-mentioned valve seat is configured in above-mentioned pressure chamber, using the par of the central authorities of above-mentioned elastic member as above-mentioned valve portion.
6. an establishing method for the setting pressure of pressure-operated valve, be the establishing method of the setting pressure of following pressure-operated valve, this pressure-operated valve is configured to, and possesses: the valve body being formed with the valve port making the direction of flow second side joint flowed into from first side joint; Columnar cylinder part centered by the axis of above-mentioned valve port; And the elastic member that can on above-mentioned axial direction be out of shape arranged opposite relative to the cylinder space of above-mentioned cylinder part; And utilize the active force of above-mentioned elastic member abut with the valve seat around above-mentioned valve port and make above-mentioned valve port be in the valve portion of valve closing state, above-mentioned elastic member is out of shape because of the pressure of above-mentioned pressure chamber, thus above-mentioned valve portion makes above-mentioned valve port be in valve opening state,
The setting pressure that the above-mentioned valve portion that the establishing method of the setting pressure of above-mentioned pressure-operated valve sets this pressure-operated valve is left from above-mentioned valve seat,
The feature of the establishing method of the setting pressure of above-mentioned pressure-operated valve is,
Above-mentioned elastic member is fixed on this cylinder part in the mode can be out of shape on the axial direction of above-mentioned cylinder part and is formed elastic member assembly body, according to above-mentioned elastic member assembly body and the relative displacement amount of above-mentioned valve body at axial direction, set the above-mentioned setting pressure of above-mentioned pressure-operated valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013136389A JP5970426B2 (en) | 2013-06-28 | 2013-06-28 | Pressure operating valve and setting method of set pressure in pressure operating valve |
| JP2013-136389 | 2013-06-28 |
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| Publication Number | Publication Date |
|---|---|
| CN104251325A true CN104251325A (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410208762.0A Pending CN104251325A (en) | 2013-06-28 | 2014-05-16 | Pressure operating valve and pressure setting method of pressure operating valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5970426B2 (en) |
| CN (1) | CN104251325A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645961A (en) * | 2020-12-21 | 2022-06-21 | 株式会社鹭宫制作所 | Pressure regulating valve |
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| CN114645961B (en) * | 2020-12-21 | 2023-11-07 | 株式会社鹭宫制作所 | pressure regulating valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5970426B2 (en) | 2016-08-17 |
| JP2015010655A (en) | 2015-01-19 |
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