EP2979035B1 - Structure étanche à l'eau d'un élément fonctionnel de cuisinière à gaz, et cuisinière à gaz - Google Patents

Structure étanche à l'eau d'un élément fonctionnel de cuisinière à gaz, et cuisinière à gaz Download PDF

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Publication number
EP2979035B1
EP2979035B1 EP14727052.4A EP14727052A EP2979035B1 EP 2979035 B1 EP2979035 B1 EP 2979035B1 EP 14727052 A EP14727052 A EP 14727052A EP 2979035 B1 EP2979035 B1 EP 2979035B1
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EP
European Patent Office
Prior art keywords
waterproof structure
snap
gas stove
sealing portion
hardness
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
EP14727052.4A
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German (de)
English (en)
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EP2979035A1 (fr
Inventor
Zeki Kafali
Xingzhou Li
Jinhua Wu
Chaolin YOU
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
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BSH Hausgeraete GmbH
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Publication date
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Publication of EP2979035A1 publication Critical patent/EP2979035A1/fr
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Publication of EP2979035B1 publication Critical patent/EP2979035B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/124—Control panels
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G25/00—Other details or appurtenances of control mechanisms, e.g. supporting intermediate members elastically
    • G05G25/04—Sealing against entry of dust, weather or the like

Definitions

  • the present invention relates to a gas stove and parts thereof, and more particularly to a waterproof structure of an operating device of a gas stove and a gas stove having the waterproof structure.
  • a gas stove panel at an operating device of an existing gas stove has an opening, which is generally sealed by using a soft waterproof structure such as rubber, so that soup spilled onto the gas stove panel does not enter a gas stove housing through the opening, otherwise a gas valve or other parts are contaminated to cause failures.
  • a waterproof structure 10' is pressed upwards below the gas stove panel 20' by an external force to mount the waterproof structure 10' into an opening of the gas stove panel, and then the gas stove panel 20' is fixed.
  • the waterproof structure 10' is of a soft structure manufactured by using a same material, and during mounting, it is likely that the waterproof structure 10' is not mounted in place, for example, a seal edge 120' of the waterproof structure 10' is partially placed in the opening, or a base 110' of the waterproof structure 10' is partially pressed into the opening, so that during mounting, checking needs to be performed above and below the gas stove panel to ensure that the waterproof structure is mounted in place, but the area of the gas stove panel is not small and the gas stove panel has some weight, and especially for a gas stove panel inlaid with ceramics or tempered glass, the operation is more difficult in the process.
  • the gas stove panel In case of any misoperation, the gas stove panel needs to be removed first, and the mounting of the waterproof structure is adjusted before the gas stove panel is fixed, thereby making it difficult to increase assembly efficiency of the process.
  • the waterproof structure When a user is using the gas stove, the waterproof structure is likely to be pulled out of a mounting position by the user by mistake because the waterproof structure is manufactured by using a same soft material; however, above the gas stove panel, the waterproof structure cannot be successfully mounted, the gas stove panel has to be removed first before the waterproof structure is mounted, and then the gas stove panel is re-mounted, which incurs troubles to the user. It can be seen that mounting of a waterproof structure of an operating knob of an existing gas stove is very difficult, the waterproof structure is not fixed reliably, and there is a risk that the waterproof structure is not mounted in place.
  • a sealing element suitable for use in cooking devices, especially counter-top cooktops is disclosed.
  • the sealing element prevents the liquids spilled onto the panel from leaking through an aperture by providing leak-proofing of the apertures.
  • the knobs placed onto the panel are mounted and comprise a gasket seated all around the edge of the aperture on the upper surface of the panel and are produced from an elastic material.
  • US 2010/140064 A1 discloses a rotary control switch including a body member, a shaft member and a conducting member.
  • the body member includes a main body having a receptacle and a perforation.
  • the body member comprises engaging elements, and a sealing ring made of rubber material is mounted into the body member. Multiple recesses are disposed within the receptacle. The perforation is communicated with the receptacle.
  • the shaft member includes a base and a rotating shaft.
  • EP 1 541 928 A1 discloses a device for tuning a gas flame of a gas stove.
  • the device has a turnable axially moveable actuator shaft extending through an aperture in a hob cover, and a seal element for the aperture on top of the cover.
  • the element has an associated sealing washer, which is connected non-turnable to the shaft. The washer is pressed against the sealing element by a spring, and the element has an associated ringshaped cover acting as abutment for the spring.
  • the sealing element and/or cover are of plastic, and the sealing washer is of metal.
  • the actuator shaft and sealing plate are of different materials.
  • the technical problem to be solved by the present invention is to provide a waterproof structure of an operating device of a gas stove, which can be easily mounted and has the reduced risk of that the waterproof structure is not mounted in place, so as to eliminate the technical defects of an existing waterproof structure of an operating device of a gas stove that the waterproof structure may not be mounted in place and mounting is not easy.
  • a waterproof structure of an operating device of a gas stove is provided, the waterproof structure is in the shape of a hollow barrel and includes a snap portion and a sealing portion that are disposed from bottom to top successively along an axial direction of the waterproof structure, the snap portion is connected to the sealing portion, and the hardness of the snap portion is higher than the hardness of the sealing portion.
  • the hardness of the snap portion of the waterproof structure is increased, which not only facilitates mounting of the waterproof structure and makes the waterproof structure be more firmly fixed, but also greatly reduces the risk that the waterproof structure is not mounted in place; and the sealing portion with the lower hardness is effectively waterproof.
  • the ingenious combination of the two makes the waterproof structure of the present invention not only have desirable waterproof performance, but also have the advantage of being easy to mount.
  • the sealing portion includes a first protruding edge, a first neck portion, and a second protruding edge that are disposed from bottom to top successively along an axial direction of the sealing portion.
  • the snap portion and the sealing portion are manufactured by using different materials respectively to achieve that the hardness of the snap portion is higher than the hardness of the sealing portion, that is, the snap portion is manufactured by using a material with the higher hardness and the sealing portion is manufactured by using a material with the lower hardness; alternatively, the snap portion and the sealing portion are manufactured in different process conditions respectively to achieve that the hardness of the snap portion is higher than the hardness of the sealing portion.
  • the snap portion and the sealing portion are integrally molded, so as to not only facilitate manufacturing, but also further facilitate increase of bond strength between the sealing portion and the snap portion, and save the trouble of manual connection of the sealing portion and the snap portion.
  • the snap portion and the sealing portion are separately molded, and then are assembled to be connected together.
  • An assembly procedure may be combined with a mounting procedure of the waterproof structure, so as to improve efficiency.
  • the snap portion is manufactured by using a hard plastic material
  • the sealing portion is manufactured by using a soft rubber material.
  • the hard plastic material has desirable corrosion resistance and is easy to be machined and molded; and the soft rubber material is easy to be in close contact with a surface of the gas stove, so as to ensure desirable tightness of the sealing portion.
  • the snap portion is manufactured by using polypropylene (PP), acrylonitrile butadiene styrene (ABS) or nylon, and the sealing portion is manufactured by using a thermoplastic elastomer (TPE) material.
  • PP polypropylene
  • ABS acrylonitrile butadiene styrene
  • TPE thermoplastic elastomer
  • the snap portion is manufactured by using PP, ABS, or engineering plastic nylon, resulting in the low manufacturing cost and greater durability.
  • the TPE material is a functional material has both the elasticity of rubber and the rigidity of plastic, the TPE is green, and the material does not contain any phthalate or halogen, and is environmentally friendly.
  • the sealing portion is integrated with the snap portion through secondary injection molding.
  • the melting point of the material of the snap portion is higher than the melting point of the material of the sealing portion.
  • the first neck portion is in the shape of a cylinder or a truncated cone.
  • an angle between an outer surface of the second protruding edge and an outer surface of the first neck portion is 45°-135°, thereby effectively preventing the soup from flowing over the second protruding edge.
  • the snap portion includes a second neck portion and a snap protrusion disposed on the second neck portion. Through the second neck portion, the snap protrusion is held at a lower surface of the gas stove panel, thereby firmly fixing the waterproof structure.
  • the snap portion includes multiple snap protrusions, and the multiple snap protrusions are evenly distributed on the second neck portion along a circumferential direction of the second neck portion.
  • a maximum radial distance from the snap protrusion to the axis of the waterproof structure decreases gradually from top to bottom.
  • the second neck portion includes at least one gap, and the gap extends downwards to an end of the second neck portion.
  • the snap portion further includes a third protruding edge connected to the second neck portion, and the first protruding edge of the sealing portion covers the third protruding edge.
  • the third protruding edge includes several holes, the sealing portion is integrated with the snap portion through secondary injection molding, and during the secondary injection molding, the several holes are filled with the material of the sealing portion.
  • a gas stove includes a gas stove panel and an operating device that controls power of the gas stove, and the gas stove panel is provided with an opening through which a shaft portion of the operating device runs.
  • the gas stove further includes the waterproof structure that is sleeved on the shaft portion and is described above, and the snap portion runs through the opening and is held at the gas stove panel.
  • the hardness of the snap portion is increased, so that the snap portion can very easily run through the opening of the gas stove panel so as to be held at the gas stove panel, thereby facilitating a mounting operation of the waterproof structure and enhancing reliability of the fixing of the waterproof structure.
  • the risk that the waterproof structure is not mounted in place is greatly reduced; the sealing portion with the lower hardness is effectively waterproof; and the ingenious combination of the two makes the gas stove of the present invention have the beneficial effects obviously superior to those in the prior art.
  • the snap portion runs through the opening from above the gas stove panel and is held at the gas stove panel.
  • the waterproof structure may be mounted after the gas stove panel is fixed, making the operation easier.
  • the sealing portion is located above the gas stove panel, and the first protruding edge is in close contact with a surface of the gas stove panel.
  • the gas stove panel is located between the snap protrusion and the third protruding edge.
  • the snap protrusion and the third protruding edge with the higher hardness are held below and above the gas stove panel, so that when the gas stove is in use, the waterproof structure is not likely to be pulled up by mistake.
  • FIG. 3 is a three-dimensional view of a waterproof structure of an operating device of a gas stove according to an embodiment of the present invention.
  • a waterproof structure 10 of the present invention is in the shape of a hollow barrel, and includes a snap portion 11 and a sealing portion 12 that are disposed from bottom to top successively along an axial direction of the waterproof structure 10.
  • the snap portion 11 is connected to the sealing portion 12, and the hardness of the snap portion 11 is higher than the hardness of the sealing portion 12.
  • the snap portion 11 and the sealing portion 12 are manufactured by using different materials respectively to achieve that the hardness of the snap portion 11 is higher than the hardness of the sealing portion 12, that is, the snap portion 11 is manufactured by using a material of the higher hardness (for example, plastic with the Shore hardness HD being 80-90) and the sealing portion 12 is manufactured by using a material of the lower hardness (for example, rubber with the Shore hardness HA being 50-60).
  • the snap portion 11 and the sealing portion 12 are manufactured in different process conditions respectively to achieve that the hardness of the snap portion 11 is higher than the hardness of the sealing portion 12. For example, different annealing temperatures, injection pressures, molding cycles, etc. are adopted during an injection molding process of a material.
  • the snap portion 11 and the sealing portion 12 are integrally molded.
  • a material used to manufacture the snap portion 11 is integrated with a material used to manufacture the sealing portion 12 through a secondary injection molding process; alternatively, the material used to manufacture the snap portion 11 and the material used to manufacture the sealing portion 12 are integrally molded at one time through a dual-material injection molding machine. In this way, not only manual assembly or connection processes can be reduced to improve production efficiency, but also bond strength between the snap portion 11 and the sealing portion 12 is increased.
  • the snap portion 11 and the sealing portion 12 are separately molded and then are assembled to be connected together; it is more feasible that an assembly procedure of the snap portion 11 and the sealing portion 12 and a mounting procedure of the waterproof structure 10 are combined, the snap portion 11 enters from a position below a gas stove panel into an opening of the gas stove panel, so as to be assembled with the sealing portion 12 above the gas stove panel, and once the assembly procedure of the snap portion 11 and the sealing portion 12 is completed, the mounting of the waterproof structure 10 is completed.
  • the snap portion 11 is manufactured by using a hard plastic material
  • the sealing portion 12 is manufactured by using a soft rubber material.
  • a soft rubber material can be easily in close contact with a surface of the gas stove panel tightly, so as to ensure desirable tightness of the sealing portion 12. Additionally, the hard plastic material has desirable corrosion resistance, and is easy to be machined and molded.
  • the snap portion 11 is manufactured by using PP, ABS or nylon
  • the sealing portion 12 is manufactured by using a TPE material, and through a secondary injection molding process, the snap portion 11 is integrated with the sealing portion 12.
  • the snap portion 11 with the hardness being relatively higher is made through first molding by using a material such as PP, ABS, or nylon, then the molded snap portion 11 is placed in a female mold of a mold for secondary molding, then a TPE material is injected at an appropriate temperature onto the snap portion 11 to adhere to the snap portion 11, and the waterproof structure 10 is obtained through cooling.
  • the melting point of the material of the snap portion 11 is higher than the melting point of the material of the sealing portion 12.
  • FIG. 4 is a sectional view of a sealing portion according to an embodiment of the present invention.
  • the sealing portion 12 includes a first protruding edge 121, a first neck portion 122, and a second protruding edge 123 that are disposed from bottom to top successively along an axial direction of the sealing portion 12.
  • the first neck portion 122 is in the shape of a cylinder or a truncated cone.
  • a value range of an angle ⁇ between an outer surface of the second protruding edge 123 and an outer surface of the first neck portion 122 is 45°-135°.
  • the second protruding edge 123 can more effectively prevent soup spilled out of cookware on the gas stove from entering into a gas stove housing. As indicated by a solid-line arrow in FIG. 11 , when a stream of soup on the gas stove panel flows to the waterproof structure 10, the liquid soup encounters the second protruding edge 123 and is therefore prevented from entering into the waterproof structure 10.
  • FIG. 5 is a three-dimensional view of a snap portion according to an embodiment of the present invention.
  • a snap portion 11 includes a second neck portion 111 and a snap protrusion 112 disposed on the second neck portion 111. Further, the snap portion 11 includes multiple snap protrusions 112, the multiple snap protrusions 112 are evenly distributed on the second neck portion 111 along a circumferential direction of the second neck portion 111, so that the waterproof structure 10 is steadily fixed, thereby reducing the risk that the waterproof structure 10 is inclined or is not mounted in place.
  • FIG. 6 FIG.
  • a second neck portion 111 has at least one gap 1110, and the gap 1110 extends downwards to an end of the second neck portion 111.
  • the snap portion 11 When being snapped into an opening on a gas stove panel, the snap portion 11 is inevitably pressed in a radial direction by a wall of the opening.
  • This design makes the snap portion 11 have better elasticity in the radial direction, so as to provide sufficient withdrawing space for the snap protrusion 112.
  • the snap protrusion 112 is formed at a whole lower end of the second neck portion 111, which is different from the snap protrusion shown in FIG.
  • FIG. 7 is a sectional view of a waterproof structure in use according to an embodiment of the present invention.
  • a maximum distance from the snap protrusion 112 to the axis C-C of the waterproof structure 10 decreases gradually from top to bottom.
  • the snap protrusion 112 further has a guiding function, so as to help the waterproof structure 10 be mounted correctly in place.
  • FIG. 8 is an enlarged view of an area A in FIG. 7 .
  • the present invention makes a further improvement, where the snap portion 11 further includes a third protruding edge 113 connected to the second neck portion 111.
  • the first protruding edge 121 of the sealing portion 12 covers the third protruding edge 113.
  • a contact area between the snap portion 11 and the sealing portion 12 is increased, so as to enhance the bond strength between the two.
  • the first protruding edge 121 covers the third protruding edge 113, particularly a lower surface of the third protruding edge 113, so that the first protruding edge 121 with the lower hardness can be in close contact with the gas stove panel, thereby ensuring a desirable sealing effect of the waterproof structure 10.
  • the third protruding edge 113 includes several holes 1130. During secondary injection molding of the snap portion 11 and the sealing portion 12, the several holes 1130 are filled with the material of the sealing portion 12, such as TPE. It can be seen from FIG.
  • FIG. 9 is a top view of a gas stove according to an embodiment of the present invention
  • FIG. 10 is a sectional view along a line V-V in FIG. 9
  • FIG. 11 is an enlarged view of an area B in FIG. 10 .
  • the present invention provides a gas stove 1, which includes a gas stove panel 20, and an operating device 30 that controls power of the gas stove.
  • the gas stove panel 20 is provided with an opening 210 through which a shaft portion 310 of the operating device 30 runs.
  • the gas stove 1 further includes a waterproof structure 10 that is sleeved on the shaft portion 310.
  • the waterproof structure 10 is in the shape of a hollow barrel, and includes a snap portion 11 and a sealing portion 12 that are disposed from bottom to top successively along an axial direction of the waterproof structure 10.
  • the snap portion 11 is connected to the sealing portion 12, and the hardness of the snap portion 11 is higher than the hardness of the sealing portion 12.
  • the snap portion 11 runs through the opening 210 and is held at the gas stove panel 20.
  • the operating device 30 is a knob, and performs operations of igniting and turning off a burner of the gas stove 1 and adjusting the power.
  • the sealing portion 12 is located above the gas stove panel 20.
  • the sealing portion 12 includes a first protruding edge 121, a first neck portion 122, and a second protruding edge 123 that are disposed from bottom to top successively along an axial direction of the sealing portion 12.
  • the snap portion 11 includes a second neck portion 111 and a snap protrusion 112 disposed on the second neck portion. In order to further enhance the bond strength between the snap portion 11 and the sealing portion 12, the snap portion 11 further includes a third protruding edge 113 connected to the second neck portion 111.
  • the specific structural feature and function of each part of the waterproof structure 10 and the material and manufacturing of the waterproof structure 10 are as those described in the foregoing, and are not described herein again.
  • the hardness of the snap portion 11 is higher than the hardness of the sealing portion 12, so that the snap portion 11 can enter the opening 210 more easily. Further, in an assembly procedure of the gas stove, in this embodiment, after the gas stove panel 20 is mounted and fixed, the waterproof structure 10 may be snapped from a position above the gas stove panel 20 into the opening 210. Alternatively, it is also feasible to change the structure of the snap portion 11 and snap the waterproof structure 10 from a position below the gas stove panel 20 into the snap portion 11.
  • the waterproof structure 10 when the hardness of the snap portion 11 is increased, the waterproof structure 10 can be mounted in place more easily; in combination with the structural feature of the snap protrusion 112, when the waterproof structure 10 is mounted in place, it can be felt with the hand clearly. Further, it can be seen from FIG. 11 that, the gas stove panel 20 is located between the snap protrusion 112 and the third protruding edge 113. As a result, the snap protrusion 112 and the third protruding edge 113 with the higher hardness are held below and above the gas stove panel 20, so that when the gas stove 1 is in use, the waterproof structure 10 is not likely to be pulled up by a user by mistake.
  • the waterproof structure is manufactured by using a same soft material, and is very likely to be pulled out by mistake when used by a user; above the gas stove, the existing waterproof structure cannot be successfully mounted, and the gas stove panel has to be removed before the waterproof structure is mounted, but the removal and re-mounting of the gas stove panel affects desirable experience of the user on the product and is likely to cause post-sale complaints from the user.
  • the sealing portion 12 of the waterproof structure 10 effectively prevents soup and water spilled out of cookware on the gas stove from entering into the gas stove housing through the opening 210 on the gas stove panel 20, otherwise the gas valve or other parts are contaminated to cause failures.
  • the sealing portion 12 has the lower hardness, and is manufactured by using, for example, a soft material such as a soft rubber material or TPE, so that the first protruding edge 121 is in close contact with the surface of the gas stove panel 20, so as to provide the waterproof structure with desirable tightness.
  • a soft material such as a soft rubber material or TPE
  • TPE soft rubber material
  • the second protruding edge 123 which is designed to form an angle with the first neck portion 122, makes the soup return after the hitting and makes it difficult for the soup to flow over the second protruding edge 123 to enter into the waterproof structure 10, thereby more effectively blocking the soup.
  • the value range of the angle between the outer surface of the second protruding edge 123 and the outer surface of the first neck portion 122 is 45°-135°, and the angle range is proved to facilitate returning of the soup after the soup hits the second protruding edge 123, thereby achieving a better waterproof effect.
  • the waterproof structure 10 of the present invention is effectively waterproof, but does not completely seal the opening on the gas stove panel 20 to prevent air from entering into the housing of the gas stove 1 as some existing technologies do. As indicated by a dotted arrow in FIG. 11 , ambient air may enter into the gas stove housing through the gap between the operating device 30 and the second protruding edge 123 and the gap between the whole waterproof structure 10 and the shaft portion 310 of the operating device 30, so as to supply air to the burning of the burner of the gas stove.
  • the assembly sequence of the gas stove of the possible embodiment of the present invention is different from that in the prior art, and in the embodiment, above the gas stove panel 20, the waterproof structure 10 is mounted after the gas stove panel 20 is mounted.
  • the mounting operation is easy. It is not required to be as in the prior art that, the waterproof structure is mounted on the gas stove panel first, and then the gas stove panel is mounted, where once something is wrong with the mounting of the waterproof structure, the gas stove panel needs to be removed and re-mounted.
  • the waterproof structure 10 of the present invention has the snap portion 11 with the higher hardness, which greatly reduces the risk that the waterproof structure 10 is not mounted in place; meanwhile, the sealing portion 12 with the lower hardness ensures desirable tightness of the waterproof structure 10; and the ingenious combination of the two greatly improves the assembly efficiency and yield of the gas stove of the present invention.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Combinations Of Kitchen Furniture (AREA)

Claims (14)

  1. Structure étanche à l'eau (10) d'un dispositif opérationnel d'un four à gaz, dans laquelle la structure étanche à l'eau (10) est sous la forme d'un tambour creux et comprend une partie à encliquetage (11) et une partie d'étanchéité (12) qui sont disposées de bas en haut successivement le long d'un sens axial de la structure étanche à l'eau (10), et la partie à encliquetage (11) est connectée à la partie d'étanchéité (12), dans laquelle la dureté de la partie à encliquetage (11) est supérieure à la dureté de la partie d'étanchéité (12), caractérisée en ce que la partie d'étanchéité (12) comprend un premier bord saillant (121), une première partie de col (122), et un deuxième bord saillant (123) qui sont disposés de bas en haut successivement le long d'un sens axial de la partie d'étanchéité (12).
  2. Structure étanche à l'eau (10) selon la revendication 1, caractérisée en ce que la partie à encliquetage (11) et la partie d'étanchéité (12) sont fabriquées en utilisant des matériaux différents respectivement pour réaliser que la dureté de la partie à encliquetage (11) est supérieure à la dureté de la partie d'étanchéité (12) ; à titre d'alternative, la partie à encliquetage (11) et la partie d'étanchéité (12) sont fabriquées sous des conditions de traitement différentes respectivement pour réaliser que la dureté de la partie à encliquetage (11) est supérieure à la dureté de la partie d'étanchéité (12).
  3. Structure étanche à l'eau (10) selon la revendication 1 ou 2, caractérisée en ce que la partie à encliquetage (11) et la partie d'étanchéité (12) sont moulées de façon intégrale.
  4. Structure étanche à l'eau (10) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la partie à encliquetage (11) et la partie d'étanchéité (12) sont moulées séparément, et ensuite sont assemblées pour être connectées ensemble.
  5. Structure étanche à l'eau (10) selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la partie à encliquetage (11) est fabriquée en utilisant un matériau plastique dur, et la partie d'étanchéité (12) est fabriquée en utilisant un matériau de caoutchouc souple.
  6. Structure étanche à l'eau (10) selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la partie à encliquetage (11) est fabriquée en utilisant un polypropylène (PP), un acrylonitrile-butadiène-styrène (ABS) ou un nylon, et la partie d'étanchéité (12) est fabriquée en utilisant un matériau élastomère thermoplastique (TPE).
  7. Structure étanche à l'eau (10) selon l'une quelconque des revendications 3 à 6, caractérisée en ce que la partie d'étanchéité (12) est intégrée avec la partie à encliquetage (11) par moulage par injection secondaire.
  8. Structure étanche à l'eau (10) selon la revendication 7, caractérisée en ce que le point de fusion du matériau de la partie à encliquetage (11) est supérieur au point de fusion du matériau de la partie d'étanchéité (12).
  9. Structure étanche à l'eau (10) selon l'une quelconque des revendications 1 à 8, caractérisée en ce que la première partie de col (122) est sous la forme d'un cylindre ou d'un cône tronqué.
  10. Structure étanche à l'eau (10) selon la revendication 8 ou 9, caractérisée en ce que, dans une quelconque section transversale comprenant l'axe de la structure étanche à l'eau, un angle entre une surface extérieure du deuxième bord saillant (123) et une surface extérieure de la première partie de col (122) est 45°-135°.
  11. Structure étanche à l'eau (10) selon l'une quelconque des revendications 1 à 9, caractérisée en ce que la partie à encliquetage (11) comprend une deuxième partie de col (111) et une saillie d'encliquetage (112) disposée sur la deuxième partie de col (111).
  12. Structure étanche à l'eau (10) selon la revendication 11, caractérisée en ce que la partie à encliquetage (11) comprend des saillies d'encliquetage (112) multiples, et les saillies d'encliquetage (112) multiples sont réparties régulièrement sur la deuxième partie de col (111) le long d'un sens circonférentiel de la deuxième partie de col (111).
  13. Structure étanche à l'eau (10) selon la revendication 11 ou 12, caractérisée en ce qu'une distance radiale maximum de la saillie d'encliquetage (112) jusqu'à l'axe de la structure étanche à l'eau (10) diminue graduellement de haut en bas.
  14. Four à gaz (1), comprenant un panneau (20) de four à gaz et un dispositif opérationnel (30) qui commande une puissance du four à gaz, dans lequel le panneau (20) de four à gaz est doté d'une ouverture (210) à travers laquelle une partie d'arbre (310) du dispositif opérationnel (30) court, caractérisé en ce que comprenant en outre :
    la structure étanche à l'eau (10) selon l'une quelconque des revendications 1 à 13 qui est manchonnée sur la partie d'arbre (310), dans lequel la partie à encliquetage (11) traverse l'ouverture (210) et est maintenue au niveau du panneau (20) de four à gaz.
EP14727052.4A 2013-03-26 2014-03-24 Structure étanche à l'eau d'un élément fonctionnel de cuisinière à gaz, et cuisinière à gaz Active EP2979035B1 (fr)

Applications Claiming Priority (2)

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WO2014155269A1 (fr) 2014-10-02
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CN104075357A (zh) 2014-10-01

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