EP3058277B1 - Betätigungsvorrichtung für ein gasventil, gasventil und kochstelle - Google Patents

Betätigungsvorrichtung für ein gasventil, gasventil und kochstelle Download PDF

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Publication number
EP3058277B1
EP3058277B1 EP14786356.7A EP14786356A EP3058277B1 EP 3058277 B1 EP3058277 B1 EP 3058277B1 EP 14786356 A EP14786356 A EP 14786356A EP 3058277 B1 EP3058277 B1 EP 3058277B1
Authority
EP
European Patent Office
Prior art keywords
actuating element
actuating
base
base element
actuator according
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.)
Active
Application number
EP14786356.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3058277A1 (de
Inventor
Luis Antonio Palacios Valdueza
Emilio Placer Maruri
Roberto Saiz Gonzalez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3058277A1 publication Critical patent/EP3058277A1/de
Application granted granted Critical
Publication of EP3058277B1 publication Critical patent/EP3058277B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/247—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/007—Regulating fuel supply using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/16—Fuel valves variable flow or proportional valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/24—Valve details

Definitions

  • a gas control valve for example for a gas hob, may comprise a valve housing and a closing element rotatably received in the valve housing. For actuating the closing element, this is connected, for example, with an actuating element.
  • the actuator may be, for example, a knob. With the aid of a rotational movement applied to the actuating element, the gas flow through the gas regulating valve can be regulated.
  • stepped gas control valves are known in which the heating power of a gas burner with provided on the gas control valve latching steps corresponds.
  • a gas control valve according to the prior art is disclosed in the publication DE 21 15 254 A1 known.
  • an actuator for a gas valve (2, 3) is disclosed, with a base member 6 which is coupled to an actuating shaft 4 of the gas valve.
  • the base member has an engagement portion 7 and an actuator (rotary handle 11) in which the base member is received.
  • the actuator is rotatable relative to the base member and has a mating engagement portion 18 adapted to engage the engagement portion.
  • a transmission device 19, 33 is adapted to implement a rotational movement of the actuating element relative to the base element in a translational movement of the actuating element relative to the base element.
  • an object of the present invention is to provide an improved actuator for a gas valve. Accordingly, an actuator for a gas valve having a base member rotationally coupled to an actuating shaft of the gas valve, the base member having an engagement portion, an actuator in which the base member is at least partially received, wherein the actuating member is rotatable relative to the base member and wherein the actuating element has a counter-engagement portion which is adapted to engage positively in the engagement portion and proposed a transmission device.
  • the transmission device is adapted to implement a rotational movement of the actuating element relative to the base element in a translational movement of the actuating element relative to the base element, wherein the actuating element by means of the transmission device selectively from an unlocking position in which the counter-engagement portion out of engagement with the Engaging portion is, in a locking position, in which the counter-engaging portion is in a form-locking engagement with the engagement portion, axially displaceable along the base member and wherein the transmission device is configured such that the actuating element during a rotational movement of the actuating element relative to the base member by a predetermined rotational angle section remains in the unlocked position.
  • the base member and the actuator may be plastic and / or metal components.
  • the gas valve is in particular a gas control valve, which may be arranged in a supply line to a gas burner.
  • the gas valve is a stepped gas control valve.
  • the gas valve has angle steps of 36 °. Due to the fact that the actuating element initially remains in the unlocking position in the case of a rotational movement about the predetermined rotational angle section, the rotational movement of the actuating element is converted into a rotational movement of the actuating shaft only when the predetermined rotational angle section is reached. As a result, the requirement can be met that no rotational movement of the actuating shaft should take place when the gas valve is actuated beyond the predetermined angle of rotation section.
  • the predetermined rotational angle section is 90 °.
  • the predetermined angle of rotation portion is preferably 90 ° because this safety requirements can be met. In particular, it may be predetermined that, when the actuating element is rotated over the first 90 ° of the rotary path, no gas flow through the gas valve should take place.
  • the predetermined rotation angle section can also be 36 °. At an angle of 90 ° or of 36 °, the respective angle is to be understood as ⁇ 10 °, preferably ⁇ 5 °, more preferably ⁇ 3 °, more preferably ⁇ 1 °, further preferably ⁇ 0 °.
  • the transmission device is configured such that the actuating element is displaceable in a rotational movement of the actuating element relative to the base member beyond the predetermined rotational angle portion from the unlocking position to the locking position.
  • the transmission device preferably has a slotted guide and a guide pin which is adapted to slide on the slotted guide.
  • the guide pin is in particular a metal pin.
  • the engagement portion is provided on the base member outer teeth, wherein the counter-engagement portion is provided on the actuating element internal toothing.
  • the external toothing and the internal toothing are in particular adapted to engage in one another in a form-fitting manner. In this way, a rotational movement of the actuating element can be implemented without slip in a rotational movement of the actuating shaft.
  • the actuating device has a spring device arranged between the base element and the actuating element.
  • the spring device is in particular a helical spring.
  • the spring device is a compression spring.
  • the actuating element is spring-biased by means of the spring device in the direction of the unlocking position.
  • the spring device pushes the actuating element away from the base element.
  • the transmission device has a sliding guide provided on the actuating element and a guide pin provided on the base element.
  • the slotted guide is provided in particular on an upper edge of a tubular base body of the actuating element.
  • the top edge runs preferably parallel to a lower edge of the base body.
  • the slide guide can have an end stop against which the guide pin can rest.
  • the end stop preferably extends beyond the upper edge.
  • At the end stop may be a rampenfömiger, obliquely away from the upper edge extending first portion of the slotted guide join.
  • the first portion extends circumferentially beyond the predetermined rotational angle portion.
  • the guide pin is fastened to the base element.
  • the guide pin can be pressed into a recess of the base member, soldered, glued, welded and / or otherwise be firmly mounted.
  • the actuating element in the case of the rotational movement of the actuating element relative to the base element, can be displaced from the unlocking position into the locking position by the predetermined rotational angle section.
  • the transmission device has a gate guide provided on the base element and a guide pin provided on the actuating element.
  • the slotted guide is in particular provided on the base element groove.
  • the guide pin is attached to the actuating element.
  • the guide pin can be pressed into a corresponding recess of the base member, soldered, glued, welded and / or otherwise firmly mounted.
  • the slide guide has a locking portion, in which the guide pin engages in the locking position of the actuating element such that the actuating element is fixed relative to the base element.
  • the guide pin By pressing the actuating element against a spring force of the spring device, the guide pin can be disengaged from the locking section.
  • the guide pin can be brought out of engagement with the locking portion of the slide guide by displacing the actuating element beyond the locking position.
  • the actuator is quickly and easily unlocked.
  • the gas valve is in particular a gas control valve.
  • the gas valve may be a stepped gas control valve.
  • the hotplate is in particular a gas hob.
  • the Fig. 1 shows a schematic perspective exploded view of an actuator 1 for a gas valve 2.
  • the gas valve 2 is in particular a gas control valve.
  • the Fig. 1 further shows a cooking point 3, in particular a gas hob, with a cooktop 4, in particular with a gas hob.
  • the Hotplate 3 is in particular a household appliance.
  • the gas valve 2 is arranged in particular between a gas main line, not shown, and a gas burner of the hob 4.
  • the gas valve 2 has a valve housing 5 with a gas inlet 6 and gas outlets 7, 8. By means of a clamping plate 9, the valve housing 5 can be clamped to the gas main line of the hob 4. With the aid of the gas valve 2, a gas flow to the gas burner can be regulated. From the valve housing 5, an actuating shaft 10 protrudes. With the help of the actuating shaft 10, a gas flow rate through the gas valve 2 is adjustable.
  • the actuating shaft 10 preferably has a circular cross-section, wherein on a side facing away from the valve housing 5 end portion of the actuating shaft 10, a lateral flattening 11 is provided.
  • the actuating device 1 has a base element 12, which is rotationally coupled to the actuating shaft 10, and an actuating element 13.
  • the actuating element 13 receives the base element 12 at least partially. That is, the base member 12 is insertable into the actuator 13.
  • the actuating element 13 is preferably coupled to an actuating button of the actuating device 1. In particular, the actuating element 13 is formed integrally with the actuating button.
  • the actuating device 1 has a spring device 14 arranged between the actuating element 13 and the base element 12.
  • the actuating device 1 has a guide pin 15 and a slotted guide 16.
  • the link guide 16 and the guide pin 15 form a transmission device 17 of the actuator 1.
  • the guide pin 15 slides on the slotted guide 16 and is pressed by means of the spring means 14 against the slide guide 16.
  • the Fig. 2 shows the spring device 14 in a schematic perspective view.
  • the spring device 14 is preferably a coil spring or coil spring.
  • the spring device 14 is a compression spring.
  • the spring device 14 is shown in a compressed state.
  • the spring device 14 has an inner diameter D i14 and an outer diameter D a14 .
  • the Fig. 3 shows the base member 12 in a schematic perspective view.
  • the base element 12 has a tubular base body 18 with a longitudinal axis L 12 .
  • the base body 18 has an annular cross-section with a flattening provided on the inside.
  • the flattening of the base body 18 is formed corresponding to the flattening 11 of the actuating shaft 10, so that the base member 12 is rotationally coupled after being pushed onto the actuating shaft 10 with this.
  • the tubular base body 18 is closed at a first end portion with an end wall 19.
  • the main body 18 has a diameter D 18 .
  • the diameter D 18 is smaller than the inner diameter D i14 of the spring means 14.
  • a disc-shaped circumferential flange 20 is provided at a first end portion opposite the second end portion of the base body 18 .
  • a diameter D 20 of the flange 20 is greater than the outer diameter D a14 of the spring device 14 so that it rests on the flange 20.
  • the engagement section 21 is an outer toothing of the base element 12 arranged on the outside of the main body 18.
  • a recess 22 is provided in the base body 18.
  • the recess 22 may break the base body 18.
  • the recess 22 is preferably a bore.
  • the guide pin 15 can be received in such a way that it extends laterally out of the main body 18.
  • the guide pin 15 can protrude laterally beyond the flange 20.
  • the guide pin 15 is fixedly mounted on the base member 12. For example, the guide pin 15 is pressed into the recess 22, welded, soldered and / or glued into it.
  • the base member 12 is preferably formed in one piece material.
  • the base member 12 may be made partially or entirely of a metal material or a plastic material.
  • the base member 12 is a plastic injection molded part.
  • the Fig. 4 shows in a schematic perspective view of the actuating member 13.
  • the actuating member 13 has an open ended tubular body 23 having an inner diameter D i23 and an outer diameter D on a23.
  • the inner diameter D i23 is preferably larger than the outer diameter D a14 of the Spring device 14, so that the spring device 14 is at least partially receivable in the main body 23.
  • the counter-engagement portion 25 is adapted to engage the engagement portion 21 of the base member 12 in a form-fitting manner.
  • the counter-engagement portion 25 is an internal toothing.
  • the spring device 14 is located on the underside of the counter-engagement portion 25. That is, the spring device 14 is arranged between the base element 12, in particular the flange 20, and the actuating element 13, in particular the counter-engagement portion 25. The actuating element 13 is arranged between the spring device 14 and the guide pin 15.
  • a lower edge 26 of the base body 23 points in the direction of the flange 20 of the base element 12.
  • the actuating element 13 has the slide guide 16.
  • the slotted guide 16 is provided on one of the lower edge 26 of the main body 23 opposite upper edge 27.
  • the upper edge 27 extends parallel to the lower edge 26.
  • the slide guide 16 has an end stop 28, on which the guide pin 15 can rest.
  • the end stop 28 extends beyond the upper edge 27.
  • a ramp-shaped, extending from the top edge 27 obliquely away extending first portion 29 of the slotted guide 16 connects.
  • the first section 29 extends obliquely to the upper edge 27.
  • the first section 29 merges into a second section 30 extending back in the direction of the upper edge 27 in a ramp-shaped manner.
  • the first section 29 extends over a predetermined rotational angle section a of the main body 23 (FIG. Fig. 5 ).
  • the predetermined rotation angle section ⁇ is preferably 90 °.
  • an angle of 90 ° ⁇ 10 °, more preferably of 90 ° ⁇ 5 °, more preferably of 90 ° ⁇ 1 °, more preferably of exactly 90 ° is to be understood as 90 °.
  • the actuator 13 may be made partially or completely of a metal material or a plastic material.
  • the actuating element 13 is a plastic injection-molded part.
  • the operation of the actuator 1 is based on the Fig. 5 and 6 , to which reference will be made hereinafter, will be explained.
  • the Fig. 5 shows one schematic plan view of the actuator 1.
  • the Fig. 6 shows a schematic side view of the actuator 1.
  • the Fig. 5 and 6 show the actuator 1 in an operating condition in which the gas valve 2 is closed.
  • the transmission device 17 is configured to convert a rotational movement of the actuating element 13 relative to the base element 12 into a translational movement of the actuating element 13 relative to the base element 12.
  • the actuating element 13 of a in the Fig. 5 and 6 shown unlocking position in which the counter-engagement portion 25 is disengaged from the engagement portion 21, in a locking position in which the counter-engagement portion 25 is in positive engagement with the engagement portion 21, axially displaceable along the base member 12.
  • Fig. 6 is the guide pin 15 on the end stop 28 of the slotted guide 16.
  • the actuating element 13 against a spring force F 14 of the spring device 14 along the base member 12 down, that is, in the direction of the flange 20 moves.
  • the actuating element 13 remains at a rotation of the actuating element 13 relative to the base member 12 via the predetermined angle section ⁇ initially in the unlocked position. That is, the counter-engagement portion 25 is disengaged from the engagement portion 21 at a rotation smaller than the predetermined angle portion ⁇ .
  • the actuating element 13 is brought into the locking position.
  • the counter engagement portion 25 and the engaging portion 21 engage, so that the operating member 13 is moved to the locking position.
  • the actuator 13 is in the locking position when the guide pin 15 is positioned at a highest point of section 29.
  • the highest point of section 29 is the transition from section 29 to section 30.
  • the actuator 13 is in the lock position, that is, when the actuator 13 is rotated relative to the base member 12 beyond the predetermined rotational angle portion ⁇ , a rotational movement of the actuator 13 is translated into a rotational movement of the actuator shaft 10.
  • the actuating shaft 10 is not moved over the first 90 ° of rotational movement of the actuating element 13. From a rotation angle of 90 ° on the actuating element 13, the actuating shaft 10 is moved.
  • the spring device 14 biases the actuating element 13 in the direction of the unlocking position.
  • the Fig. 7 shows a schematic perspective exploded view of another embodiment of an actuator 1 for a gas valve 2.
  • the gas valve 2 is preferably identical to the gas valve 2 according to the Fig. 1 ,
  • the actuating device 1 has a base element 12, which is rotationally coupled to the actuating shaft 10, and an actuating element 13.
  • the actuating element 13 receives the base element 12 at least partially. That is, the base member 12 is insertable into the actuator 13.
  • the actuating element 13 is preferably coupled to an actuating button of the actuating device 1.
  • the actuating element 13 is designed as an actuating button.
  • the actuating device 1 has a spring device 14 arranged between the actuating element 13 and the base element 12.
  • the actuator 1 further includes a guide pin 15 and a slotted guide 16.
  • the slide guide 16 and the guide pin 15 form a transmission device 17 of the actuator. 1
  • the Fig. 8 shows the spring device 14 in a schematic perspective view.
  • the spring device 14 is preferably a helical spring.
  • the spring device 14 is a compression spring.
  • the Fig. 8 is the Spring device 14 shown in a compressed state.
  • the spring device 14 has an inner diameter D i14 and an outer diameter D a14 .
  • the embodiment of the spring device 14 according to the Fig. 8 preferably has a smaller outer diameter D a14 than the embodiment of the spring device 14 according to the Fig. 2 ,
  • the Fig. 9 shows the base member 12 in a schematic perspective view.
  • the base element has a cylindrical base body 18 with a diameter D 18 .
  • the main body 18 has a central recess 32 at a first end portion 31.
  • the recess 32 preferably has a circular cross-section with a lateral flattening.
  • the lateral flattening is formed corresponding to the flattening 11 of the actuating shaft 10, so that the base member 12 is rotationally coupled after being pushed onto the actuating shaft 10 with this.
  • an engagement portion 21 is provided as the main body 18 outer circumferential toothing. From a second end portion 33 of the main body 18 extends a cylindrical receiving portion 34 for the spring means 14 with a diameter D 34 out.
  • the diameter D i14 of the spring device 14 is preferably greater than the diameter D 34 , so that the spring device 14 can be pushed onto the receiving section.
  • the base member 12 further includes the slotted guide 16.
  • the slide guide 16 is formed as introduced into the base 18 groove.
  • the slide guide 16 has a first groove section 35 extending in the direction of a longitudinal axis L 12 of the base element 12 and a second groove section 36 adjoining the first groove section 35 and extending obliquely to the longitudinal axis L 12 .
  • a third groove portion 37 connects, which also extends obliquely to the longitudinal axis L 12 .
  • the third groove portion 37 extends in the opposite direction as the second groove portion 36.
  • a fourth, back in the direction of the first groove portion 35 extending groove portion or locking portion 38 connects to the third groove portion 37 at.
  • the locking portion 38 extends in the direction of the longitudinal axis L 12 toward the first groove portion 35.
  • the Fig. 10 shows in a schematic perspective view of the actuating element 13.
  • the actuating element 13 has a tubular base body 23 which is closed at an end portion 39 with an end wall 40.
  • the end wall 40 preferably has a central opening 41.
  • a diameter of the central aperture may be larger than the diameter D 34 of the receiving portion 34 of the base member 12.
  • the spring means 14 is disposed between the end wall 40 and the base member 12.
  • the counter-engagement portion 25 is formed corresponding to the engagement portion 21.
  • the counter-engagement portion 25 is preferably provided at a lower or second end portion 43 of the main body 23. Furthermore, an opening 44 is provided in the base body. In the opening 44 of the guide pin 15 is attached. The guide pin 15 can be glued into the opening 44, welded, soldered and / or pressed. The guide pin 15 is positioned so that it projects laterally into an interior space 45 of the main body 23. An inner diameter D i23 of the main body 23 is greater than the outer diameter D 18 of the main body 18 of the base member 12, so that the base member 12 is at least partially receivable in the actuating element 13.
  • the actuator In an unlocking position of the actuating element 13 of the guide pin 15 is positioned in the first groove portion 35 of the slotted guide 16.
  • the spring device 14 biases the actuating element 13 in the direction of the unlocking position.
  • the counter-engagement portion 25 approaches the engagement portion 21 at.
  • the angle of rotation is preferably 90 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Feeding And Controlling Fuel (AREA)
EP14786356.7A 2013-10-17 2014-10-02 Betätigungsvorrichtung für ein gasventil, gasventil und kochstelle Active EP3058277B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201331530A ES2534141B1 (es) 2013-10-17 2013-10-17 Dispositivo de accionamiento para una válvula de gas, válvula de gas, y punto de cocción
PCT/IB2014/065010 WO2015056126A1 (de) 2013-10-17 2014-10-02 Betätigungsvorrichtung für ein gasventil, gasventil und kochstelle

Publications (2)

Publication Number Publication Date
EP3058277A1 EP3058277A1 (de) 2016-08-24
EP3058277B1 true EP3058277B1 (de) 2017-12-13

Family

ID=51743522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14786356.7A Active EP3058277B1 (de) 2013-10-17 2014-10-02 Betätigungsvorrichtung für ein gasventil, gasventil und kochstelle

Country Status (4)

Country Link
EP (1) EP3058277B1 (es)
CN (1) CN105637295B (es)
ES (2) ES2534141B1 (es)
WO (1) WO2015056126A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4235034A1 (en) * 2022-02-25 2023-08-30 Whirlpool Corporation Knob mechanism for gas cooktop

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB798913A (en) * 1955-08-08 1958-07-30 Robertshaw Fulton Controls Co Control device for gaseous fuel burning appliances
DE2115254A1 (de) * 1970-06-08 1971-12-16 Vaillant Joh Kg Drehgasschalter, insbesondere fur Wassererhitzer
US6007047A (en) * 1998-06-05 1999-12-28 Phipps; Jack M. Rotary actuator for stem valves
NL1034069C2 (nl) * 2007-06-29 2008-12-30 Vacc Holding B V Bedieningsmechanisme alsmede een samenstel.
JP4241885B2 (ja) * 2008-05-09 2009-03-18 パロマ工業株式会社 ガス湯沸器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4235034A1 (en) * 2022-02-25 2023-08-30 Whirlpool Corporation Knob mechanism for gas cooktop
US11788730B2 (en) 2022-02-25 2023-10-17 Whirlpool Corporation Knob mechanism for gas cooktop

Also Published As

Publication number Publication date
ES2655088T3 (es) 2018-02-16
EP3058277A1 (de) 2016-08-24
WO2015056126A1 (de) 2015-04-23
ES2534141B1 (es) 2016-01-22
CN105637295A (zh) 2016-06-01
CN105637295B (zh) 2017-10-20
ES2534141A1 (es) 2015-04-17

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