EP3935299A1 - Valve arrangement - Google Patents
Valve arrangementInfo
- Publication number
- EP3935299A1 EP3935299A1 EP20702782.2A EP20702782A EP3935299A1 EP 3935299 A1 EP3935299 A1 EP 3935299A1 EP 20702782 A EP20702782 A EP 20702782A EP 3935299 A1 EP3935299 A1 EP 3935299A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control element
- valve
- valve arrangement
- pilot
- pilot valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000001125 extrusion Methods 0.000 claims abstract description 21
- 239000012528 membrane Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 12
- 230000003247 decreasing effect Effects 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000004886 process control Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 210000002105 tongue Anatomy 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- 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
- F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
- F16K31/385—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm
- F16K31/3855—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm the discharge being effected through the diaphragm and being blockable by a mechanically-actuated member making contact with the diaphragm
Definitions
- the invention relates to a valve arrangement with a main valve and a pilot valve, the main valve having a switching diaphragm which opens and closes depending on the application of pressure, and the application of pressure can be adjusted with the pilot valve, the pilot valve having a control element which is preferably connected to a manually operated actuating element is operatively connected and with which a relief opening in the switching membrane can be closed.
- Such valve arrangements are known and are used, for example, in order to be able to switch a main valve, which can for example be a closing valve or a switching valve, with little expenditure of force and / or with a smooth switching behavior and / or from a distance.
- a water pressure present at the main valve is used to trigger a switching movement of the switching membrane.
- the interplay between the switching of the pilot valve and the switching of the main valve requires some structural effort, which is reflected in the production costs.
- the invention is based on the object of reducing the manufacturing costs for producing such valve assemblies.
- the features of claim 1 are proposed to achieve this object.
- the control element be at least from an axial section, for example an axial section containing a tool dividing line and / or a maximum outer diameter of the control element has a decreasing, for example a monotonically decreasing, outer cross section towards one end.
- a monotonically decreasing outer cross-section in one area can be characterized, for example, by the fact that there is no sub-area in the area in which the outer cross-section is circumferentially and / or with its outer diameter contrary to the rest of the course outside the sub-area, but within the area increases.
- control element can be produced at least in sections in an extrusion process. This avoids undercuts that would make removal from an extrusion mold difficult or impossible or that would require the use of a split mold.
- a complex turning operation, for example to produce an undercut, or grinding operation, for example to remove an axially or longitudinally running tool separating line, of the control element can thus be dispensed with. This makes it possible to reduce the manufacturing costs for the valve arrangement.
- the end can be a proximal end of the control element.
- the advantage here is that the thin end of the control element can be arranged outside a pilot chamber in which the application of pressure to the switching diaphragm can be generated.
- the control element can be plugged in from the inside to the outside in relation to the pilot chamber, so that an inner, distal end of the control element can be designed with a sufficiently large diameter to accommodate a sealing plug, for example.
- Proximal can be characterized here, for example, as close to the actuating element, distal as far from the actuating element.
- the features of the second independent claim directed to a valve arrangement are proposed to achieve the stated object.
- a head which preferably defines a maximum outer diameter of the control element is formed at a distal end of the control element, on which a cap-shaped seal is slipped, and that the relief opening can be closed with the seal.
- the seal can form a coating on the head. This can merge over a shoulder into a section of the control element with a smaller or the same diameter.
- control element is produced in a section or area forming the decreasing outer cross section by means of full forward extrusion.
- a rod-like shape of the control element can be designed cost-effectively.
- Post-processing, for example by turning and / or grinding, is not required.
- the features of the third independent claim directed to a valve arrangement are proposed in order to achieve the stated object.
- a receptacle is formed at a distal end of the control element, into which a seal, in particular a sealing plug, is inserted, and that the relief opening can be closed with the sealing plug.
- the receptacle in comparison to an external fastening of the sealing plug in a cost-effective process, for example an extrusion process, can be produced.
- the sealing plug can be inserted into the receptacle more easily than when it is slipped on.
- Sealing plug can be held securely, with a contact pressure transmitted via it being easily diverted into the control element.
- the receptacle is produced in a cup-backward extrusion process. This is particularly easy to connect with the above-mentioned combination with the solution described first with a full forward extrusion process, wherein the tool parting line can separate the two differently manufactured parts from one another.
- control element in particular for a shaping of the receptacle and / or in a region of the receptacle, has an enlarged diameter, through which a shoulder is formed for the contact of a return spring. A restoring force can thus be applied to the control element.
- control element is guided on a wall of a pilot chamber that accommodates the pilot valve. Tilting of the control element can thus be avoided. It is particularly favorable if the control element is guided on all sides, for example along its entire circumference. For example, in the case in which the aforementioned seal is placed in a receptacle, the Control element in the area of the recording run on the outside of the wall. It can also be provided that when the seal is turned over onto a head, for example as described above, this seal runs on the wall.
- the features of the fourth independent claim directed to a valve arrangement are proposed in order to achieve the stated object.
- a fastening device which can be acted upon by the actuating element is arranged on the control element, which fastening device can be displaced on the control element in one direction along its longitudinal axis and which locks in the opposite direction.
- an easily attachable fastening option is provided in order to apply a tensile force to the control element.
- a formation of undercuts or retaining grooves on the control element for a power transmission from an actuating element can therefore be dispensed with.
- the invention has recognized here that, particularly when the actuating element is in operative connection with a push-push mechanism and / or the control element is acted upon by a restoring force, no thrust forces have to be transmitted from the actuating element to the control element.
- the fastening device can simply be plugged onto a control element that has a monotonically decreasing outer diameter in some areas.
- the fastening device is arranged on a region of the control element with the smallest circumference and / or diameter.
- a further protrusion of the control element over the fastening device can thus be dispensed with, for example if the control element has a (monotonically) sloping sequence of cylindrical sections with a decreasing diameter.
- the fastening device has at least one spring tongue which contacts the control element and blocks displaceability in the opposite direction.
- a simple possibility is described to achieve a desired displaceability in one direction, namely for pushing open, and a desired locking effect, namely for transmitting the tensile force. It is particularly favorable if the fastening device has a plurality of spring tongues which act on the control element distributed in the circumferential direction.
- the fastening device is plugged onto the control element as a self-locking disk on one side. This enables a space-saving coupling to the control element.
- the fastening device is designed as a shaft locking ring.
- a fastening variant known per se is thus made available.
- the features of the fifth independent claim directed to a valve arrangement are proposed to achieve the stated object.
- the control element is produced in an extrusion process.
- the extrusion process is characterized in that complex post-processing of a manufactured, for example, rotationally symmetrical control element can be dispensed with. It has been shown that sufficient sealing of the pilot valve can be achieved with such control elements. A simplified manufacture of the control element and consequently the valve arrangement can thus be achieved.
- a tool parting line is aligned in such a way that it runs around a longitudinal axis of the control element in a circumferential direction. In this way, axially or longitudinally oriented elevations, which could lead to leaks, can be avoided.
- the circuit can be designed to be closed, so that, for example, ends of the tool parting line meet.
- Such a circumferential tool parting line results, for example, when different extrusion processes are applied to the control element one after the other.
- control element is designed without undercuts on the outside, at least in a distal region. This makes it possible, for example, to dispense with turning and / or split tool shapes.
- control element is rod-shaped.
- the advantage here is that less space is required on the side. It is also advantageous that a passage opening into the pilot valve, through which the control element runs, is included the smallest possible opening diameter can be formed.
- control element reaches through a ring seal.
- the advantage here is that the control element can be guided through a wall from the outside without the water escaping from the wall.
- the ring seal is arranged in a wall of a pilot chamber.
- the control element can thus be introduced into the pilot chamber in order to actuate the switching membrane.
- the ring seal is arranged in a region of the control element with a monotonically decreasing diameter, circumference and / or cross section. The ring seal can therefore be easily attached.
- the ring seal is arranged in an area produced by the extrusion process. It has been found that an extrusion process is sufficient
- a preferably circumferential groove is formed or incorporated on the control element at its thin end. An area of attack for a coupling between an actuating element and the control element can thus be formed.
- a retaining element engages in the groove for coupling an actuating element. From The advantage here is that a simple and safe coupling can be formed.
- the aforementioned and described actuating element can be set up for manual actuation, for example by means of a push-push mechanism.
- the invention finally relates to the use of an extrusion process for producing a control element of a valve arrangement of the type described above, in particular wherein the valve arrangement is designed according to the invention, for example as described above and / or according to one of the claims directed to a valve arrangement.
- Fig. 1 shows a valve arrangement according to the invention in a
- FIG. 2 shows the valve arrangement according to FIG. 1 in one
- FIG. 3 shows the control element from FIG. 1 in a three-dimensional oblique view of the distal end in an exploded view
- FIG. 4 shows the control element from FIG. 1 in a three-dimensional oblique view of the proximal end in an exploded view
- FIG. 5 shows a further valve arrangement according to the invention in an axial section with the pilot valve and main valve closed
- FIG. 6 shows the valve arrangement according to FIG. 5 in one
- FIG. 7 shows the control element from FIG. 5 in a three-dimensional oblique view of the distal end in an exploded view
- FIG. 8 shows the control element from FIG. 5 in a three-dimensional oblique view of the proximal end in an exploded view
- FIG. 9 shows a detail from a sectional illustration of a further valve arrangement according to the invention.
- a valve arrangement 1 has a known manner
- Main valve 2 and a pilot valve 3.
- the pilot valve 3 controls the main valve 2 by a
- Switching membrane 4 opens and closes.
- a control element 5 which has a
- Actuating element 6 can be operated manually.
- the control element 5 leads into a pilot chamber 7.
- the switching membrane 4 separates the pilot chamber 7 from a main chamber 8 of the main valve 2.
- the pilot chamber 7 can be filled from a water inflow 10 with a filling opening 9.
- a relief opening 11 is dimensioned such that when the relief opening 11 is open, no pressure build-up is possible in the pilot chamber 7.
- the relief opening 11 can be closed with the control element 5.
- the pilot chamber 7 empties into a water drain 13, which can for example be arranged behind the valve seat 12.
- a pressure in the pilot chamber 7 is thus reduced, and a pressure in the water inflow 10 forces the switching membrane 4 into an open position.
- a push-push mechanism 37 mediates between the open position and the closed position in a known manner.
- the actuating element 6 here has an inner part 43 and an outer part 44 which are rotatable relative to one another - with play - connected, for example, latched, to a projection 40 engaging in a groove 41.
- the rod-shaped control element 5 is in one Extruded process produced and has a tool parting line 14 which runs closed around the control element 5.
- the tool dividing line 14 separates a proximal end 15 of the control element 5 from a distal end 16 of the control element 5.
- the tool dividing line 14 lies in an axial section 42.
- the axial section 42 also includes the maximum outer diameter of the control element 5.
- an outer cross-section 17 decreases or does not change in a region 18 from the axial section 42, here as from the tool separating line 14, to the proximal end 15 but not enlarged.
- control element 5 is composed of cylindrical sections 19 in the area 18, the diameter and circumference of which decreases towards the proximal end 15. A stepped profile of the outer cross section is thus formed.
- the area 18 is made in the full forward extrusion process. The result is an undercut-free contour, seen from the proximal end 15.
- a cup-shaped receptacle 20 is formed at the distal end 16, into which a seal 40 is inserted as a sealing plug 21.
- the sealing plug 21 closes the relief opening 11.
- control element 5 forms an enlarged diameter 22 in the region of the receptacle 20, by means of which a circumferential shoulder 23 is formed.
- a fastening device 25 is plugged onto the control element 5 in a direction 26 which extends along a longitudinal axis 27 from proximal to distal.
- the fastening device 25 locks in the opposite direction 28 because spring tongues 29, which are formed on a disk 30, hook onto the control element 5. A tensile force can thus be applied to the control element 5.
- the fastening device 25 designed here as a shaft locking ring, is slipped onto the thin end 31, that is to say here the proximal end 15, of the control element 5, which is formed by the section 19 with the smallest circumference.
- An annular seal 32 is inserted in a passage opening 33 through a wall 34 of the pilot chamber 7.
- the control element 5 reaches through the ring seal 32 to get into the interior of the pilot chamber 7 and is guided on the wall 34 on all sides.
- FIGS. 5 to 8 show a further embodiment of a valve arrangement according to the invention 1. Functionally and / or structurally identical or similar components and functional units to the previous embodiment are denoted by the same reference numerals and are not described again separately. The statements relating to FIGS. 1 to 4 thus apply accordingly to FIGS. 5 to 8.
- proximal end 15 is not designed without an undercut, but has a groove 35 into which a holding element 36 is clipped.
- the holding element 36 assumes the function of a fastening device 25 via which the control element 5 and the actuating element 6 are coupled.
- a push-push mechanism 37 is also shown, which by continued pressing in the longitudinal axis 27 between the closed position according to FIG. 1 (or FIG. 5) and the open position according to FIG. 2 (or FIG. 6 ) changes. It can be seen that the fastening device 25 only has to stress the control element 5 in tension because the return spring 24 brings the control element 5 back.
- FIG. 9 shows a further exemplary embodiment of a valve arrangement 1 according to the invention in a detail of an axial section.
- Components and functional units which are functionally and / or structurally identical or similar to the preceding exemplary embodiment are denoted by the same reference symbols and are not described again separately. The statements relating to FIGS. 1 to 8 thus apply accordingly to FIG. 9.
- the exemplary embodiment according to FIG. 9 differs from the preceding exemplary embodiments in that the distal end 16 of the control element 5 does not have a receptacle, but is designed as a head 39 on which the cap-shaped seal 40 is placed as a cover.
- the control element 5 is guided on all sides on the wall 34 in that the seal 40 rests against the wall and runs on it.
- a Control element 5 with which a pilot valve 3 for controlling a main valve 2 can be opened and closed, with an outer cross-section 17 that tapers continuously or stepwise in one direction in order to enable production in one or more extrusion processes.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202019101264.1U DE202019101264U1 (en) | 2019-03-06 | 2019-03-06 | Valve arrangement |
PCT/EP2020/052209 WO2020177956A1 (en) | 2019-03-06 | 2020-01-30 | Valve arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3935299A1 true EP3935299A1 (en) | 2022-01-12 |
Family
ID=69400562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20702782.2A Withdrawn EP3935299A1 (en) | 2019-03-06 | 2020-01-30 | Valve arrangement |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3935299A1 (en) |
CN (1) | CN113544421A (en) |
DE (1) | DE202019101264U1 (en) |
WO (1) | WO2020177956A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60128077U (en) * | 1984-02-07 | 1985-08-28 | 株式会社日立ホームテック | Water faucet |
JPH04302790A (en) * | 1991-03-29 | 1992-10-26 | Toto Ltd | Diaphragm type flow control valve |
EP1450030A1 (en) * | 2003-02-18 | 2004-08-25 | Delphi Technologies, Inc. | Exhaust gas recirculation valve |
JP4925638B2 (en) * | 2005-10-14 | 2012-05-09 | 株式会社不二工機 | Motorized valve |
CN204664492U (en) * | 2015-04-15 | 2015-09-23 | 厦门建霖工业有限公司 | Water filter safety valve |
DE202016001106U1 (en) * | 2016-02-22 | 2017-05-23 | Neoperl Gmbh | Valve actuator |
CN206206700U (en) * | 2016-10-21 | 2017-05-31 | 福建西河卫浴科技有限公司 | A kind of temperature-adjustable presses switch valve |
DE202017101403U1 (en) * | 2017-03-10 | 2018-06-12 | Neoperl Gmbh | Sanitary valve and corresponding series |
-
2019
- 2019-03-06 DE DE202019101264.1U patent/DE202019101264U1/en active Active
-
2020
- 2020-01-30 CN CN202080018878.1A patent/CN113544421A/en active Pending
- 2020-01-30 WO PCT/EP2020/052209 patent/WO2020177956A1/en active Search and Examination
- 2020-01-30 EP EP20702782.2A patent/EP3935299A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE202019101264U1 (en) | 2020-06-09 |
WO2020177956A1 (en) | 2020-09-10 |
CN113544421A (en) | 2021-10-22 |
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