Telescopic knob and gas appliance including the same

Abstract

The present invention discloses a telescopic knob and a gas appliance including the same. The telescopic knob includes: a valve stem connector; a knob assembly, which is arranged on the valve stem connector, the knob assembly can drive the valve stem connector to rotate together, and the knob assembly can axially extend and retract relative to the valve stem connector; wherein, when the knob assembly is in an extended state, the knob assembly and the valve stem connector are locked together in an axially downward direction by a locking device and can move axially downward together; the locking device is provided with an unlocking mechanism, which can release the lock between the knob assembly and the valve stem connector, so that the knob assembly can retract relative to the valve stem connector. The present invention also discloses a gas appliance including the telescopic knob. The telescopic knob can be extended and retracted without affecting the normal opening of the gas cock.

Description

Technical Field

[0001] The invention relates to the technical field of gas appliances, and in particular to a telescopic knob and a gas appliance comprising the same. Background Art

[0002] Most of the knobs of existing household appliances are protruding from the panel and cannot be retracted. This structure not only affects the appearance of the whole, but also hinders users from cleaning the area near the knob, and is easy to touch by mistake and cause injuries. For this reason, some retractable knobs have also appeared. When the knob is not in use, the knob can be pressed to retract it, thereby reducing the height of the knob or retracting the knob into the panel.

[0003] For gas appliances such as gas cookers, integrated stoves and gas ovens, the gas cock is usually opened and closed by a knob, and some gas cocks need to be opened by pressing the knob and then rotating the knob to finally complete ignition and opening. However, the existing telescopic knob will directly retract when pressed, and the above-mentioned opening action cannot be completed, and it is not suitable for gas appliances with the above-mentioned gas cock. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a telescopic knob which can be applied to a gas appliance having a gas cock valve that needs to be pressed to start.

[0005] The present invention also provides a gas appliance having the above-mentioned gas appliance.

[0006] According to the telescopic knob of the first aspect of the present invention, it includes: a valve stem connector; a knob assembly, which is arranged on the valve stem connector, and the knob assembly can drive the valve stem connector to rotate together, and the knob assembly can axially extend and retract relative to the valve stem connector; wherein, when the knob assembly is in an extended state, the knob assembly and the valve stem connector are locked together in an axial downward direction by a locking device and can move axially downward together; the locking device is provided with an unlocking mechanism, and the unlocking mechanism can release the lock of the knob assembly and the valve stem connector so that the knob assembly can retract relative to the valve stem connector.

[0007] The telescopic knob according to the embodiment of the present invention has at least the following beneficial effects: the valve stem connector is used to connect to the valve stem of the gas cock. When the knob assembly is in the extended state, due to the action of the locking device, the knob assembly and the valve stem connector can not only rotate together, but also move axially downward together, thereby completing the opening action of the gas cock. When the knob assembly needs to be retracted, the locking effect of the locking device is released by the unlocking mechanism, so that the knob assembly can be retracted relative to the valve stem connector.

[0008] According to some embodiments of the present invention, the locking device includes a locking control member, which is movably arranged on the valve stem connector and has a locking position and an unlocking position. When the knob assembly is in an extended state, the locking control member is in the locking position. The locking control member in the locking position can lock the knob assembly and the valve stem connector together in an axial downward direction. The unlocking mechanism can drive the locking control member to move to switch between the locking position and the unlocking position. When the locking control member is in the unlocking position, the knob assembly and the valve stem connector are unlocked.

[0009] According to some embodiments of the present invention, the unlocking mechanism includes an unlocking member, and the locking device also includes a first elastic member, one end of the unlocking member is connected to the locking control member and can drive the locking control member to move, the other end of the unlocking member is provided with an operating part, the first elastic member is provided between the valve stem connecting member and the locking control member, and when the knob assembly is reset from a retracted state to an extended state, the locking control member can be reset to the locked position through the first elastic member.

[0010] According to some embodiments of the present invention, the locking control member and the unlocking member are axially movably arranged relative to the valve stem connecting member, and when the knob assembly moves axially downward together with the valve stem connecting member, the locking control member can move axially downward together and remain in the locking position; when the knob assembly is in an extended state, the unlocking member moves axially downward relative to the valve stem connecting member to drive the locking control member to switch from the locking position to the unlocking position, and the operating part is configured as a button; a button hole is provided on the knob assembly, and the operating part is movably arranged in the button hole and exposed through the button hole.

[0011] According to some embodiments of the present invention, the knob assembly is provided with a sleeve hole, and the knob assembly is sleeved on the valve stem connecting member through the sleeve hole and can axially extend and retract relative to the valve stem connecting member, and a snap-fitting portion is provided on the inner wall of the sleeve hole; the valve stem connecting member is provided with a sliding hole for axial sliding of the locking control member, and an elastic snap-fitting portion is provided on the side wall of the sliding hole, and a pushing portion opposite to the elastic snap-fitting portion is provided on the hole wall of the sliding hole; when the knob assembly is in an extended state, the locking control member The control member is held between the pushing portion and the elastic snap-fit ​​portion by the first elastic member, and the pushing portion pushes the locking control member toward the elastic snap-fit ​​portion so that the elastic snap-fit ​​portion extends to the lower side of the snap-fit ​​portion to limit the knob assembly; the unlocking member can drive the locking control member to move downward and disengage from the pushing portion and the elastic snap-fit ​​portion, and when the locking control member disengages from the elastic snap-fit ​​portion, the elastic snap-fit ​​portion can be reset to a position where it disengages from the snap-fit ​​portion.

[0012] According to some embodiments of the present invention, a linkage portion is provided on the unlocking member. After the unlocking member moves axially downward to switch the locking control member to the unlocking position, the unlocking member can further move axially downward through the linkage portion to link the knob assembly to move axially downward together, so that the knob assembly enters a retracted state.

[0013] According to some embodiments of the present invention, a pop-up mechanism is provided between the knob assembly and the valve stem connector, and when the knob assembly is in a retracted state, the knob assembly can be restored to an extended state through the pop-up mechanism.

[0014] According to some embodiments of the present invention, the pop-up mechanism includes a second elastic member, which is arranged between the knob assembly and the valve stem connecting member and makes the knob assembly have a tendency to return to an extended state; the knob assembly includes a knob body and a retaining member arranged on the knob body, and the retaining member can move axially together with the knob body; a first slideway is provided on the valve stem connecting member, and the retaining member is slidably arranged on the first slideway, and the first slideway is provided with a first retaining position, a second retaining position and a disengaging portion; when the knob assembly is in an extended state, the retaining member is engaged with the first retaining position; when the knob assembly moves axially downward relative to the valve stem connecting member to retract, the retaining member can slide along the first slideway to the second retaining position, and the retaining member can be engaged with the second retaining position so that the knob assembly can be maintained in a retracted state; when the knob assembly is pressed downward in the retracted state, the retaining member can cooperate with the disengaging portion to disengage from the second retaining position, and the retaining member after disengagement can return to the first retaining position along the first slideway.

[0015] According to some embodiments of the present invention, the first slide is an annular slide, the first latching position is configured as a recessed portion arranged at the upper end of the annular slide, the annular slide accommodates a protrusion, and the second latching position is configured as a recessed portion at the lower part of the protrusion, the latching member is movably connected to the knob body and is limited to movement in the horizontal direction, and when the knob assembly moves axially downward relative to the valve stem connecting member to retract, the latching member can slide along the left half of the annular slide to the second latching position, and the slide wall of the part of the first slide opposite to the second latching position is inclined to form the disengagement portion, the latching member can generate a horizontal offset through the slide wall and be offset from the second latching position, and after the latching member is offset from the second latching position, the latching member can slide back to the first latching position through the right half of the annular slide.

[0016] The gas appliance according to the second aspect of the present invention comprises: a gas appliance body; a gas cock installed on the gas appliance body, the gas cock having a valve stem; and the telescopic knob described in any one of the above items, wherein the valve stem connector is connected to the valve stem.

[0017] The gas appliance according to the embodiment of the present invention has at least the following beneficial effects: in the gas appliance using the telescopic knob, the knob assembly can be telescoped without affecting the normal opening of the gas cock.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a three-dimensional schematic diagram of a telescopic knob according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 An exploded schematic diagram of the telescoping knob is shown;

[0022] Figure 3 for Figure 1 A half-section schematic diagram of the telescopic knob shown (the knob assembly is in the extended state);

[0023] Figure 4 for Figure 3 A magnified schematic diagram of point A;

[0024] Figure 5 It is a schematic diagram of the structure after the knob assembly and the valve stem connecting member of the embodiment of the present invention move axially downward together;

[0025] Figure 6 A schematic structural diagram of an unlocking mechanism in an embodiment of the present invention releasing the locking device;

[0026] Figure 7 for Figure 6 An enlarged schematic diagram of point B;

[0027] Figure 8 is a schematic diagram of a knob assembly in a retracted state according to an embodiment of the present invention;

[0028] Fig. 9 An exploded schematic diagram of a telescopic knob according to an embodiment of the present invention;

[0029] Fig.10 for Fig. 9 An enlarged schematic diagram of point C;

[0030] Fig.11 It is a structural schematic diagram of a locking member according to an embodiment of the present invention;

[0031] Fig.12 It is a structural schematic diagram of a knob assembly in an extended state according to an embodiment of the present invention;

[0032] Fig.13 It is a structural schematic diagram of the knob assembly in an embodiment of the present invention in a retracted state.

[0033] Figure markings: valve stem connector 100, sliding hole 110, elastic clamping portion 120, pushing portion 130, first slide 140, first clamping position 141, second clamping position 142, disengagement portion 143, plug-in hole 150, knob assembly 200, sleeve hole 210, clamping fitting portion 220, button hole 230, knob body 240, second slide 241, clamping member 250, locking device 300, locking control member 310, unlocking member 320, operating portion 321, linkage portion 322, first elastic member 330, pop-up mechanism 400, second elastic member 410. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0038] Reference Figure 1 and Figure 2 The telescopic knob comprises: a valve stem connector 100; a knob assembly 200, which is arranged on the valve stem connector 100, and the knob assembly 200 can drive the valve stem connector 100 to rotate together, and the knob assembly 200 can axially extend and retract relative to the valve stem connector 100; wherein, when the knob assembly 200 is in the extended state, the knob assembly 200 and the valve stem connector 100 are locked together in the axial downward direction by a locking device 300 and can move axially downward together; the locking device 300 is provided with an unlocking mechanism, and the unlocking mechanism can release the locking of the knob assembly 200 and the valve stem connector 100, so that the knob assembly 200 can retract relative to the valve stem connector 100. It should be understood that the axial direction refers to the direction indicated by the rotation axis when the knob assembly 200 rotates; downward refers to the retraction direction of the knob assembly 200 relative to the valve stem connector 100.

[0039] The valve stem connector 100 is used to connect to the valve stem of the gas cock. When the knob assembly 200 is in the extended state, due to the action of the locking device 300, the knob assembly 200 and the valve stem connector 100 can not only rotate together, but also move axially downward together, so as to complete the opening action of the gas cock. When the knob assembly 200 needs to be retracted, the locking effect of the locking device 300 is released by the unlocking mechanism, so that the knob assembly 200 can be retracted relative to the valve stem connector 100.

[0040] Reference Figure 2 In this embodiment, the locking device 300 includes a locking control member 310, which is movably disposed on the valve stem connector 100 and has a locking position and an unlocking position. When the knob assembly 200 is in the extended state, the locking control member 310 is in the locking position. The locking control member 310 in the locking position can lock the knob assembly 200 and the valve stem connector 100 together in the axial downward direction. The unlocking mechanism can drive the locking control member 310 to move to switch between the locking position and the unlocking position. When the locking control member 310 is in the unlocking position, the knob assembly 200 and the valve stem connector 100 are unlocked. The above structure is simple and easy to implement. Of course, in other embodiments, the locking device 300 and the unlocking mechanism may also adopt other structures, and those skilled in the art may choose according to their needs.

[0041] Reference Figure 3In this embodiment, the unlocking mechanism includes an unlocking member 320, and the locking device 300 also includes a first elastic member 330. One end of the unlocking member 320 is connected to the locking control member 310 to drive the locking control member 310 to move. The other end of the unlocking member 320 is provided with an operating portion 321. The first elastic member 330 is provided between the valve stem connector 100 and the locking control member 310. When the knob assembly 200 is reset from the retracted state to the extended state, the locking control member 310 can be reset to the locked position through the first elastic member 330. By providing the first elastic member 330, the locking control member 310 can be automatically reset, and the operation is convenient. In this embodiment, the first elastic member 330 is a spring. Of course, in some embodiments, the locking control member 310 can also be reset by a torsion spring, a spring sheet, or other structures.

[0042] In this embodiment, the locking control member 310 and the unlocking member 320 are axially movable relative to the valve stem connector 100. When the knob assembly 200 moves axially downward together with the valve stem connector 100, the locking control member 310 can move axially downward together and remain in the locking position; when the knob assembly 200 is in the extended state, the unlocking member 320 moves axially downward relative to the valve stem connector 100 to drive the locking control member 310 to switch from the locking position to the unlocking position, and the operating portion 321 is configured as a button. The unlocking member 320 adopts a button structure, which is easy to operate. In this embodiment, a button hole 230 is provided on the knob assembly 200, and the operating portion 321 is movably arranged in the button hole 230 and exposed through the button hole 230. Of course, in other embodiments, the unlocking member 320 can also adopt a knob or a toggle structure to drive the locking control member 310 to move, which can be selected according to needs.

[0043] Reference Figure 3 and Figure 4In this embodiment, the knob assembly 200 is provided with a sleeve hole 210, and the knob assembly 200 is sleeved on the valve stem connector 100 through the sleeve hole 210 and can be axially extended and retracted relative to the valve stem connector 100, and a snap-fitting portion 220 is provided on the inner wall of the sleeve hole 210; the valve stem connector 100 is provided with a sliding hole 110 for axial sliding of the locking control member 310, and an elastic snap-fitting portion 120 is provided on the side wall of the sliding hole 110, and a pushing portion 130 opposite to the elastic snap-fitting portion 120 is provided on the hole wall of the sliding hole 110; when the knob assembly 200 is in the extended state, the locking control member 310 is in the extended state, and the locking control member 310 is in the extended state. The control member 310 is held between the push portion 130 and the elastic clamping portion 120 by the first elastic member 330. The push portion 130 pushes the locking control member 310 toward the elastic clamping portion 120, so that the elastic clamping portion 120 extends to the lower side of the clamping fitting portion 220 and limits the knob assembly 200. The unlocking member 320 can drive the locking control member 310 to move downward and disengage from the push portion 130 and the elastic clamping portion 120. When the locking control member 310 disengages from the elastic clamping portion 120, the elastic clamping portion 120 can be reset to a position disengaged from the clamping fitting portion 220. In this embodiment, the elastic clamping portion 120 is an elastic sheet integrally injection-molded with the valve stem connector 100. Of course, in other embodiments, the elastic clamping portion 120 can also use a combination of an elastic member and a movable member to achieve elastic expansion and contraction of a certain structure.

[0044] In this embodiment, one end of the unlocking member 320 is connected to the locking control member 310 by snapping and can move axially together, and the connection between the unlocking member 320 and the locking control member 310 has a movable margin, and the locking control member 310 can move radially relative to the unlocking member 320, so that it can be pushed toward the elastic snap-fitting portion 120 by the pushing portion 130. Specifically, the locking control member 310 is provided with a shaft portion, and a flange portion is provided on the shaft portion. The unlocking member 320 is provided with a hole portion, and an annular groove is provided on the wall of the hole portion. The shaft portion is accommodated in the hole portion, and the flange portion is accommodated in the annular groove, so as to form a snap connection. At the same time, the diameter of the hole portion and the annular groove is larger than the size of the shaft portion and the flange portion, so that the locking control member 310 obtains a movement margin and can move radially.

[0045] In the present embodiment, the unlocking member 320 is provided with a linkage portion 322. After the unlocking member 320 moves axially downward and the locking control member 310 is switched to the unlocking position, when the unlocking member 320 moves further axially downward, the linkage portion 322 can link the knob assembly 200 to move axially downward together, so that the knob assembly 200 enters the retracted state. The above structure can realize the unlocking of the unlocking mechanism and the retraction of the knob assembly 200 simply by pressing the operating portion 321, and the operation is direct and convenient. In the present embodiment, the linkage portion 322 is a flange structure provided on the lower side of the operating portion 321 and the button hole 230, and the flange structure can abut against the knob assembly 200 in the axial downward direction, so as to drive the knob assembly 200 to move axially downward. Of course, the linkage portion 322 can also be other suitable structures, and those skilled in the art can choose according to their needs. In this embodiment, the knob assembly 200 includes a knob cap and a knob sleeve connected to the knob cap, and the knob sleeve is sleeved on the valve stem connector 100. The knob cap and the knob sleeve are connected by snapping and enclosing to form a chamber for accommodating the flange structure. The button hole 230 is opened at the top of the chamber, and the flange structure is abutted against the bottom wall of the chamber to achieve the above linkage. In this embodiment, when the knob assembly 200 is in the extended state, there is a gap between the flange structure and the lower edge of the button hole 230, so that when the gas cock is opened, the unlocking member 320 is not easily touched by mistake when the knob assembly 200 is pressed down.

[0046] In this embodiment, when the knob assembly 200 and the valve stem connector 100 move axially downward together, the locking control member 310 can move axially downward synchronously and remain in the locked position. Specifically, a limiting step is provided on the inner wall of the sliding hole 110, and when the valve stem connector 100 moves downward, the limiting step presses the locking control member 310 downward, and since the locking control member 310 is connected to the lower end of the unlocking member 320, the unlocking member 320 can also move downward synchronously.

[0047] In this embodiment, the inner wall of the sleeve hole 210 is engaged with the circumference of the valve stem connector 100, so that the knob assembly 200 and the valve stem connector 100 can rotate together. Of course, the knob assembly 200 and the valve stem connector 100 can also rotate together through other structures, and those skilled in the art can make settings according to actual conditions.

[0048] Reference Figure 2 In this embodiment, a pop-up mechanism 400 is provided between the knob assembly 200 and the valve stem connector 100. When the knob assembly 200 is in the retracted state, the knob assembly 200 can be restored to the extended state through the pop-up mechanism 400. By providing the pop-up mechanism 400, the knob assembly 200 can be popped out and returned to the extended state, which is convenient to use.

[0049] Reference Fig. 9In this embodiment, the pop-up mechanism 400 includes a second elastic member 410, which is arranged between the knob assembly 200 and the valve stem connector 100 and makes the knob assembly 200 have a tendency to return to the extended state; the knob assembly 200 includes a knob body 240 and a retaining member 250 arranged on the knob body 240, and the retaining member 250 can move axially together with the knob body 240; the valve stem connector 100 is provided with a first slide 140, and the retaining member 250 is slidably arranged on the first slide 140, and the first slide 140 is provided with a first retaining position 141, a second retaining position 142 and a release member 143; When the knob assembly 200 is in the extended state, the retaining member 250 is engaged with the first retaining position 141; when the knob assembly 200 moves axially downward relative to the valve stem connector 100 to be retracted, the retaining member 250 can slide along the first slide 140 to the second retaining position 142, and the retaining member 250 can be engaged with the second retaining position 142 so that the knob assembly 200 can be maintained in the retracted state; when the knob assembly 200 is pressed downward in the retracted state, the retaining member 250 can cooperate with the disengaging portion 143 to disengage from the second retaining position 142, and the disengaged retaining member 250 can return to the first retaining position 141 along the first slide 140.

[0050] In this embodiment, the second elastic member 410 is a spring. Of course, in some embodiments, the second elastic member 410 may also be a torsion spring, a spring sheet, or the like.

[0051] Reference Fig.10 In this embodiment, the first slide 140 is an annular slide, the first clamping position 141 is configured as a recessed portion arranged at the upper end of the annular slide, the annular slide contains a protrusion, and the second clamping position 142 is configured as a recessed portion at the lower part of the protrusion. The clamping member 250 is movably connected to the knob body 240 and is limited to move in the horizontal direction. When the knob assembly 200 moves axially downward relative to the valve stem connector 100 to retract, the clamping member 250 can slide along the left half of the annular slide to the second clamping position 142. The slide wall of the first slide 140 that is opposite to the second clamping position 142 is inclined to form a disengagement portion 143. The clamping member 250 can generate a horizontal offset through the slide wall and stagger with the second clamping position 142. After the clamping member 250 is staggered with the second clamping position 142, the clamping member 250 can slide back to the first clamping position 141 through the right half of the annular slide.

[0052] Reference Fig. 9 In this embodiment, a second slideway 241 extending horizontally is provided on the knob body 240, and the locking member 250 is slidably connected to the second slideway 241, thereby being limited to move in the horizontal direction.

[0053] Reference Fig.11In this embodiment, the positioning member 250 includes a disc body, and both end surfaces of the disc body are provided with extended shaft portions, one of which can slide in the first slideway 140 and also serves as the snap-fitting portion 220 . The other shaft portion can slide in the second slideway 241 .

[0054] The working principle of the telescopic knob in this embodiment is as follows:

[0055] When the knob assembly 200 is in Figure 3 The extended state shown is a normal working state. At this time, the locking control member 310 is in the locked position, that is, between the pushing portion 130 and the elastic clamping portion 120. The pushing portion 130 pushes the locking control member 310 toward the elastic clamping portion 120. The elastic clamping portion 120 extends to the lower side of the clamping fitting portion 220 and limits the knob assembly 200. When the knob assembly 200 moves downward, it will be limited by the elastic clamping portion 120, so that the knob assembly 200 can drive the valve stem connector 100 to move together in the axial downward direction. Pressing the knob assembly 200 can drive the valve stem of the gas stopcock to move downward, and then synchronously rotating the knob assembly 200 to link the valve stem connector 100 and the valve stem of the gas stopcock to rotate together, so as to realize the opening action of the gas stopcock, such as Figure 5 shown.

[0056] When it is necessary to retract the knob assembly 200, refer to Figure 6 and Figure 7 , press the operating part 321 of the unlocking member 320, drive the locking control member 310 to move downward and disengage from the pushing part 130 and the elastic clamping part 120, then the elastic clamping part 120 is reset and disengaged from the clamping part 220, the lock between the knob assembly 200 and the valve stem connecting member 100 is released, and then further press the operating part 321 of the unlocking member 320, the operating part 321 drives the knob assembly 200 to move downward through the linkage part 322, so that the knob assembly 200 retracts. In the above process, refer to Fig.12 The locking member 250 can slide along the left half of the annular slideway to the second locking position 142. Under the action of the second elastic member 410, the locking member 250 remains locked in the second locking position 142, and the knob assembly 200 remains in the retracted state. Fig.13 If the knob assembly 200 is to be restored to the extended state, the knob assembly 200 can be pressed to move the locking member 250 downward and disengage from the second locking position 142 through the disengagement portion 143. The second elastic member 410 releases its elasticity, and the locking member 250 slides back to the first locking position 141 along the right half of the annular slideway, and the knob assembly 200 is restored to the extended state. In the process of the knob assembly 200 returning to the extended state, the locking control member 310 is restored to the locking position through the first elastic member 330, and the unlocking member 320 is also restored to the original state.

[0057] The telescopic knob can be applied to a gas appliance: the gas appliance comprises: a gas appliance body; a gas cock installed on the gas appliance body, the gas cock having a valve stem; the telescopic knob of any of the above items, the valve stem connector 100 being connected to the valve stem. The knob assembly of the gas appliance using the telescopic knob can be telescopic without affecting the normal opening of the gas cock.

[0058] In this embodiment, the valve stem connector 100 is provided with a plug hole 150, and an arc-shaped spring piece 160 is provided in the plug hole 150. The arc-shaped spring piece 160 and the hole wall of the plug hole 150 form a valve stem plug space. The valve stem of the gas cock can be plugged into the above-mentioned valve stem plug space, and the valve stem can be clamped by the arc-shaped spring piece 160, and the valve stem connector 100 is installed firmly. Of course, in other embodiments, the valve stem connector 100 can also be installed and fixed to the valve stem of the gas cock through other structures, such as threaded connection, clamping, etc.

[0059] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. Telescopic knob, characterized in that: include: Valve stem connector (100); The knob assembly (200) is arranged on the valve stem connection member (100), the knob assembly (200) can drive the valve stem connection member (100) to rotate together, and the knob assembly (200) can axially extend and retract relative to the valve stem connection member (100); wherein: When the knob assembly (200) is in an extended state, the knob assembly (200) and the valve stem connection member (100) are locked together in an axially downward direction via a locking device (300) and can move axially downward together; the locking device (300) is provided with an unlocking mechanism, which can release the lock between the knob assembly (200) and the valve stem connection member (100) so that the knob assembly (200) can be retracted relative to the valve stem connection member (100); The locking device (300) comprises a locking control member (310), wherein the locking control member (310) is movably arranged on the valve stem connecting member (100) and has a locking position and an unlocking position; The unlocking mechanism comprises an unlocking member (320), and the locking device (300) further comprises a first elastic member (330); one end of the unlocking member (320) is connected to the locking control member (310) so as to drive the locking control member (310) to move; the other end of the unlocking member (320) is provided with an operating portion (321); the first elastic member (330) is provided between the valve stem connecting member (100) and the locking control member (310); when the knob assembly (200) is reset from a retracted state to an extended state, the locking control member (310) can be reset to the locked position through the first elastic member (330); The locking control member (310) and the unlocking member (320) are axially movably arranged relative to the valve stem connecting member (100); the operating portion (321) is configured as a button; a button hole (230) is provided on the knob assembly (200); and the operating portion (321) is movably arranged in the button hole (230) and exposed through the button hole (230); The knob assembly (200) is provided with a sleeve hole (210), and the knob assembly (200) is sleeved on the valve stem connection member (100) through the sleeve hole (210) so as to be able to axially extend and retract relative to the valve stem connection member (100); a snap-fitting portion (220) is provided on the inner wall of the sleeve hole (210); The valve stem connecting member (100) is provided with a sliding hole (110) for axial sliding of the locking control member (310), a side wall of the sliding hole (110) is provided with an elastic clamping portion (120), and a hole wall of the sliding hole (110) is provided with a pushing portion (130) opposite to the elastic clamping portion (120); When the knob assembly (200) is in an extended state, the locking control member (310) is held between the pushing portion (130) and the elastic clamping portion (120) by the first elastic member (330); the pushing portion (130) pushes the locking control member (310) toward the elastic clamping portion (120) so that the elastic clamping portion (120) extends to the lower side of the clamping fitting portion (220) to limit the knob assembly (200); the unlocking member (320) can drive the locking control member (310) to move downward and disengage from the pushing portion (130) and the elastic clamping portion (120); when the locking control member (310) disengages from the elastic clamping portion (120), the elastic clamping portion (120) can be reset to a position disengaged from the clamping fitting portion (220); A pop-up mechanism (400) is provided between the knob assembly (200) and the valve stem connector (100); when the knob assembly (200) is in a retracted state, the knob assembly (200) can be restored to an extended state through the pop-up mechanism (400).

2. The telescopic knob according to claim 1, characterized in that: When the knob assembly (200) is in the extended state, the locking control member (310) is in the locking position. The locking control member (310) in the locking position can lock the knob assembly (200) and the valve stem connector (100) together in the axial downward direction. The unlocking mechanism can drive the locking control member (310) to move to switch between the locking position and the unlocking position. When the locking control member (310) is in the unlocking position, the knob assembly (200) and the valve stem connector (100) are unlocked.

3. The telescopic knob according to claim 1, characterized in that: When the knob assembly (200) and the valve stem connector (100) move axially downward together, the locking control member (310) can move axially downward together and remain in the locking position; when the knob assembly (200) is in an extended state, the unlocking member (320) moves axially downward relative to the valve stem connector (100) to drive the locking control member (310) to switch from the locking position to the unlocking position.

4. The telescopic knob according to claim 1, characterized in that: The unlocking member (320) is provided with a linkage portion (322). After the unlocking member (320) moves axially downward to switch the locking control member (310) to the unlocking position, the unlocking member (320) can further move axially downward to link the knob assembly (200) with the linkage portion (322) to enable the knob assembly (200) to enter a retracted state.

5. The telescopic knob according to claim 1, characterized in that: The pop-up mechanism (400) comprises a second elastic member (410), the second elastic member (410) being arranged between the knob assembly (200) and the valve stem connecting member (100) and causing the knob assembly (200) to have a tendency to return to an extended state; the knob assembly (200) comprises a knob body (240) and a retaining member (250) arranged on the knob body (240), the retaining member (250) being capable of axial movement together with the knob body (240); a first slideway (140) being provided on the valve stem connecting member (100), the retaining member (250) being slidably arranged on the first slideway (140), the first slideway (140) being provided with a first retaining position (141), a second retaining position (142) and a disengaging portion (143); When the knob assembly (200) is in an extended state, the locking member (250) is locked in the first locking position (141); when the knob assembly (200) moves axially downward relative to the valve stem connecting member (100) to be retracted, the locking member (250) can slide along the first slideway (140) to the second locking position (142), and the locking member (250) can be locked in the second locking position (142) so that the knob assembly (200) can be maintained in the retracted state; when the knob assembly (200) is pressed downward in the retracted state, the locking member (250) can cooperate with the disengagement portion (143) to disengage from the second locking position (142), and the disengaged locking member (250) can return to the first locking position (141) along the first slideway (140).

6. The telescopic knob according to claim 5, characterized in that: The first slideway (140) is an annular slideway, the first latching position (141) is configured as a recessed portion arranged at the upper end of the annular slideway, the annular slideway contains a protrusion, the second latching position (142) is configured as a recessed portion at the lower part of the protrusion, the latching member (250) is movably connected to the knob body (240) and is limited to move in the horizontal direction, and when the knob assembly (200) moves axially downward relative to the valve stem connecting member (100) to retract, the latching member (250) can move along the annular slideway. The left half of the annular slideway slides to the second locking position (142), the slideway wall of the portion of the first slideway (140) that is opposite to the second locking position (142) is tilted to form the disengagement portion (143), the locking member (250) can be horizontally offset through the slideway wall and staggered with the second locking position (142), and after the locking member (250) is staggered with the second locking position (142), the locking member (250) can slide back to the first locking position (141) through the right half of the annular slideway.

7. A gas appliance, characterized in that: include: Gas appliance body; A gas cock valve is installed on the gas appliance body, and the gas cock valve has a valve stem; The telescopic knob according to any one of claims 1 to 6, wherein the valve stem connector (100) is connected to the valve stem.

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