CN114209223A - Telescopic knob and gas kitchen ware - Google Patents

Abstract

The invention discloses a telescopic knob and a gas kitchen ware, and belongs to the technical field of kitchen ware, wherein the telescopic knob comprises a valve rod connecting piece, a knob assembly, a sliding piece and a resetting piece, the valve rod connecting piece is provided with a guide groove which is annularly arranged, and the groove wall of the guide groove is provided with a first clamping position, a second clamping position and a third clamping position which are sequentially distributed along the axial direction; the knob component is movably sleeved on the valve rod connecting piece along the axial direction of the valve rod connecting piece, a sliding groove is formed in the knob component, and the extending direction of the sliding groove is perpendicular to the axial direction; the sliding piece is provided with a first end and a second end which are arranged oppositely, the first end is arranged in the guide groove in a sliding mode, the second end is arranged in the sliding groove in a sliding mode, when the knob component retracts relative to the valve rod connecting piece, the sliding piece is sequentially clamped in the first clamping position, the second clamping position and the third clamping position, and the second end can slide in the sliding groove; the reset piece is arranged between the valve rod connecting piece and the knob component. The gas kitchen ware comprises the telescopic knob.

Description

Telescopic knob and gas kitchen ware

Technical Field

The invention relates to the technical field of kitchen utensils, in particular to a telescopic knob and a gas kitchen utensil.

Background

An existing electric cooking appliance, such as an electric oven, an oven range, or a kitchen range, is equipped with a knob having a telescopic function, and is turned on and off by pressing the knob. Specifically, the existing knob with the telescopic function has a telescopic logic of 0-1-0, namely the knob has only two positions relative to the valve rod, the knob is pressed and loosened, the knob extends out and then is pressed and loosened, the knob retracts, and the knob realizes cyclic telescopic.

To gas kitchen utensils and appliances, for example the gas oven, according to the operation requirement, the gas valve need press can ignite after rotatory, and the current flexible knob that can only stop in two positions can not satisfy this demand, can't be applicable to gas class oven/oven kitchen range cooking utensils.

Disclosure of Invention

The invention aims to provide a telescopic knob and a gas kitchen ware, and aims to solve the technical problem that the existing knob with the telescopic function in the prior art cannot be applied to the gas kitchen ware.

As the conception, the technical scheme adopted by the invention is as follows:

a telescoping knob, comprising:

the valve rod connecting piece is provided with a guide groove which is annularly arranged, and the groove wall of the guide groove is provided with three screens which are sequentially distributed along the axial direction of the valve rod connecting piece and respectively comprise a first screen, a second screen and a third screen;

the knob assembly can be movably sleeved on the valve rod connecting piece along the axial direction of the valve rod connecting piece, a sliding groove is formed in the knob assembly, and the extending direction of the sliding groove is perpendicular to the axial direction;

the sliding part is provided with a first end and a second end which are arranged oppositely, the first end is arranged in the guide groove in a sliding mode, the second end is arranged in the sliding groove in a sliding mode, when the knob assembly retracts relative to the valve rod connecting piece, the first end can slide along the guide groove to be sequentially clamped in the first clamping position, the second clamping position and the third clamping position, and the second end can slide in the sliding groove; and

the reset piece is arranged between the valve rod connecting piece and the knob component.

The guide groove is provided with an inner groove wall and an outer groove wall, the outer groove wall is annularly arranged on the periphery of the inner groove wall and is arranged at an interval with the inner groove wall, the second clamping position is located on the outer groove wall, the inner groove wall forms a second concave part located below the second clamping position, when the sliding part is clamped and located in the second clamping position, the knob assembly is pressed to drive the sliding part to be separated from the second clamping position, and after the sliding part is abutted to the second concave part, the valve rod connecting piece is pushed and pushed to descend together.

Wherein, the position that corresponds the second screens on the inner tank wall is provided with the second spigot surface, the second spigot surface is constructed into: when the sliding piece is clamped in the second clamping position and presses the knob assembly, the sliding piece is guided to slide towards the second concave part.

The guide groove is formed with a second channel extending along the axial direction of the valve rod connecting piece, and the second concave part and the third clamping position are respectively positioned at two ends of the second channel;

when the slider is located the second depressed part, loosen the knob subassembly, under the drive force effect of the piece that resets, the slider is followed the second depressed part is deviate from, gets into the second passageway, and along the second passageway slides to the third screens.

The guide groove is provided with an inner groove wall and an outer groove wall, the outer groove wall is annularly arranged on the periphery of the inner groove wall and is arranged at an interval with the inner groove wall, the first clamp position is positioned on the inner groove wall, the outer groove wall forms a first concave part positioned below the first clamp position, and the first concave part and the first clamp position are arranged in a staggered mode along the horizontal direction;

slider card is located during the first screens, press knob subassembly drives the slider is followed first screens is deviate from to the butt in first depressed part loosens knob subassembly resets under the effect of the drive force of piece, the slider is followed first depressed part slides in the second screens.

Wherein, the position that corresponds on the outer cell wall first screens is provided with first spigot surface, first spigot surface is constructed as: when the sliding piece is clamped in the first clamping position and presses the knob assembly, the sliding piece is guided to slide towards the first concave part.

The guide groove is formed with a first channel extending along the axial direction of the valve rod connecting piece, and the second clamping position and the first concave part are respectively positioned at two ends of the first channel;

during the sliding process of the sliding part from the first recess part to the second blocking part, the sliding part slides along the first channel.

The guide groove is provided with an inner groove wall and an outer groove wall, the outer groove wall is annularly arranged on the periphery of the inner groove wall and is arranged at an interval with the inner groove wall, the third clamping position is positioned on the outer groove wall, the guide groove is formed with a third channel extending along the axial direction of the valve rod connecting piece, the outer groove wall is formed with a third sunken part, and the third clamping position and the third sunken part are respectively positioned at two ends of the third channel;

when the slider card was located when the third screens, press the knob subassembly, drive the slider follow the third screens is deviate from, gets into the third passageway to along the third passageway slides to the third depressed part, loosen the knob subassembly reset under the effect of the drive force of piece, the slider follows the third depressed part is deviate from, in order to block into first screens.

Wherein a third guide surface is arranged on the inner groove wall and positioned between the third clamping position and the third channel, and the third guide surface is configured to: when the sliding piece is clamped in the third clamping position and the knob assembly is pressed, the sliding piece is guided to slide towards the third channel.

Wherein, be provided with the fourth spigot surface on the outer cell wall, the one end of fourth spigot surface with the third depressed part is connected, and the other end is connected the one end of third passageway, the fourth spigot surface is constructed into: guiding the slider to slide toward the third recess after the slider slides out of the third channel.

A gas kitchen tool comprises the telescopic knob.

The gas kitchen ware comprises a shell, a panel assembly arranged on the shell and a control assembly arranged on the panel assembly, wherein the telescopic knob is arranged on the panel assembly; when the sliding piece is clamped into the first clamping position, the knob component is flush with the panel component; when the sliding piece is clamped into the second clamping position, the knob component protrudes out of the panel component.

The invention has the beneficial effects that:

according to the telescopic knob, the knob assembly can retract along the axial direction of the valve rod connecting piece by pressing the knob assembly, the reset piece generates driving force on the knob assembly by loosening the knob assembly, the knob assembly is repeatedly pressed and loosened, the sliding piece can be sequentially clamped into the first clamping position, the second clamping position and the third clamping position, the knob assembly is provided with three stopping positions relative to the valve rod connecting piece, the telescopic logic of the telescopic knob is 0-1-2-0, the secondary pause of the telescopic knob is realized, the telescopic knob is suitable for gas kitchen ware, and the application range is wide.

Drawings

FIG. 1 is a schematic structural diagram of a gas oven provided by an embodiment of the present invention;

FIG. 2 is an exploded view of a portion of the gas-fired oven provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a telescopic knob according to an embodiment of the present invention;

FIG. 4 is an exploded view of the retractable knob according to the embodiment of the present invention;

FIG. 5 is a cross-sectional view of a telescoping knob provided in accordance with an embodiment of the present invention;

FIG. 6 is a schematic illustration of a valve stem connector according to an embodiment of the present invention;

FIG. 7 is a front view of the valve stem connector of FIG. 6;

FIG. 8 is a schematic structural view of a sliding sleeve provided in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a slider provided in an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a spring plate according to an embodiment of the present invention;

FIG. 11 is a sectional view showing a partial structure of a telescopic knob according to an embodiment of the present invention;

FIG. 12 is a schematic view of a knob assembly on a panel assembly provided by an embodiment of the present invention in a first position;

FIG. 13 is a partial cross-sectional view of a portion of the structure of FIG. 12;

FIG. 14 is a schematic view of a portion of the structure of FIG. 13;

FIG. 15 is a schematic view of the sliding member in the first position;

FIG. 16 is a schematic view of a slider in a first recess according to an embodiment of the present invention;

FIG. 17 is a schematic view of the slider in the second position;

FIG. 18 is a schematic view of a knob assembly on a panel assembly in a second position provided by an embodiment of the present invention;

FIG. 19 is a schematic view of a portion of the structure of FIG. 18;

FIG. 20 is a partial cross-sectional view of FIG. 19;

FIG. 21 is a schematic view of a portion of the structure of FIG. 20;

FIG. 22 is a schematic view of a slider in a second recess according to an embodiment of the present invention;

FIG. 23 is a schematic view of the sliding member in the third position according to the embodiment of the present invention;

FIG. 24 is a schematic view of a knob assembly on a panel assembly provided by an embodiment of the present invention in a third position;

FIG. 25 is a schematic view of a portion of the structure of FIG. 24;

FIG. 26 is a partial cross-sectional view of FIG. 25;

FIG. 27 is a schematic view of a portion of the structure of FIG. 26;

fig. 28 is a schematic view of the sliding member in the third recess according to the embodiment of the present invention.

In the figure:

100. a housing; 110. a panel assembly; 1101. a through hole; 120. a control component; 1201. a timer; 1202. a multi-way switch; 1203. a temperature control valve assembly; 1204. a temperature control valve; 1205. a connecting pipe; 1206. a pressure maintaining valve; 130. a telescopic knob; 140. fixing a bracket; 150. a rotating shaft;

11. a valve stem connector; 111. a guide groove; 1111. a first channel; 1112. a second channel; 1113. a third channel; 1121. a first clamping position; 1122. a second card position; 1123. a third position; 1131. a first recess; 1132. a second recess; 1133. a third recessed portion; 1141. a first guide surface; 1142. a second guide surface; 1143. a third guide surface; 1144. a fourth guide surface; 115. a first notch; 116. a slide rail; 117. a first limit hole; 118. mounting grooves; 12. a spring plate;

21. a knob assembly; 211. a pressing body; 212. a sliding sleeve; 2121. a chute; 2122. a second notch; 2123. a containing groove;

31. a slider; 311. a sliding body; 312. a protrusion;

41. a reset member;

51. a knob sleeve; 511. a first flanging; 52. fixing a sleeve; 521. and a second flanging.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The invention provides a gas kitchen ware, which can be a gas oven, an oven stove or a kitchen range and the like.

Referring to fig. 1 to 28, the gas oven includes a housing 100, a panel assembly 110 disposed on the housing 100, and a control assembly 120 and a telescopic knob 130 mounted on the panel assembly 110. The housing 100 is used to provide support and protection for the entire gas oven; the panel assembly 110 forms part of the external appearance of the gas oven, and the control assembly 120 and the telescopic knob 130 mounted thereon can control the corresponding functions of the gas oven.

The telescopic knob 130 of the present embodiment includes a stem link 11, a knob assembly 21, a slider 31, and a restoring member 41.

The valve rod connecting piece 11 plays a supporting role and is used for being connected with a valve rod, and the valve rod connecting piece 11 can rotate around the axis of the valve rod connecting piece; the knob assembly 21 is movably sleeved on the valve rod connecting member 11 along the axial direction of the valve rod connecting member 11, and the reset member 41 is disposed between the valve rod connecting member 11 and the knob assembly 21. In the present embodiment, the restoring member 41 is a spring.

The valve rod connecting piece 11 is provided with a guide groove 111 which is annularly arranged, and the groove wall of the guide groove 111 is provided with three clamping positions which are sequentially distributed along the axial direction of the valve rod connecting piece 11 and are respectively a first clamping position 1121, a second clamping position 1122 and a third clamping position 1123; the knob assembly 21 is formed with a sliding groove 2121, and the extending direction of the sliding groove 2121 is perpendicular to the axial direction; the sliding member 31 has a first end and a second end, the first end is slidably disposed in the guiding slot 111, the second end is slidably disposed in the sliding slot 2121, when the knob assembly 21 retracts relative to the stem link 11, the first end can slide along the guiding slot 111 to be sequentially clamped in the first clamping portion 1121, the second clamping portion 1122 and the third clamping portion 1123, and the second end can slide in the sliding slot 2121.

Through pressing the knob assembly 21, the knob assembly 21 can retract along the axial direction of the valve rod connecting piece 11, through loosening the knob assembly 21, the reset piece 41 generates driving force for the knob assembly 21, the knob assembly is repeatedly pressed and loosened, the sliding piece 31 can be sequentially clamped into the first clamping position 1121, the second clamping position 1122 and the third clamping position 1123, the knob assembly 21 is provided with three stop positions relative to the valve rod connecting piece 11, the telescopic logic of the telescopic knob is 0-1-2-0, the two-stage pause of the telescopic knob is realized, the gas kitchen ware is applicable to gas kitchen ware, and the application range is wide.

The telescopic knob 130 further comprises a knob sleeve 51 and a fixing sleeve 52, the knob sleeve 51 is sleeved on the outer side of the valve rod connecting piece 11, the valve rod connecting piece 11 can rotate relative to the knob sleeve 51, the fixing sleeve 52 is sleeved on the outer side of the knob sleeve 51, and the fixing sleeve 52 is in threaded connection with the knob sleeve 51. The securing sleeve 52 may be snapped into the through hole 1101 of the panel assembly 110 when coupled to the panel assembly 110. One end of the knob sleeve 51 is provided with a first flanging 511, one end of the fixing sleeve 52 is provided with a second flanging 521, and the first flanging 511 can be lapped on the second flanging 521, so that the position between the first flanging and the second flanging is limited.

Specifically, the knob assembly 21 includes a pressing body 211 and a sliding sleeve 212 fixedly connected to each other, the sliding sleeve 212 is sleeved on the valve stem connector 11, and the pressing body 211 is slidably engaged with the knob sleeve 51.

When the sliding member 31 is sequentially engaged with the first engaging portion 1121, the second engaging portion 1122, and the third engaging portion 1123, the knob assembly 21 is sequentially stopped at the first position, the second position, and the third position. Specifically, when the sliding member 31 is engaged with the first engaging position 1121, the knob assembly 21 stops at the first position; by pressing and loosening the knob assembly 21, the sliding member 31 slides to the second detent 1122, and the knob assembly 21 stops at the second position; pressing and loosening the knob assembly 21 again, sliding the sliding piece 31 to the third clamping position 1123, and stopping the knob assembly 21 at the third position; the knob assembly 21 is pressed and released again, the sliding member 31 slides to the first position 1121, and the knob assembly 21 stops at the first position.

Referring to fig. 7, the arrow indicates the pressing direction, and the axis is located at the center line of the stem adapter 11. The guide groove 111 has an inner groove wall and an outer groove wall, and the outer groove wall is circumferentially disposed at the periphery of the inner groove wall and spaced apart from the inner groove wall.

A recessed portion is provided in the guide groove 111 corresponding to each detent. The concave part is positioned below the corresponding clamping position; when the sliding piece 31 is clamped into different clamping positions, the knob component 21 stops at different positions; by pressing the release knob assembly 21, the slider 31 can slide from one detent into the other detent through the corresponding recess. The arrangement of the recessed portion enables a stop point to be formed when the knob assembly 21 is pressed, and the pressing hand feeling is improved.

At least one guide surface is arranged in the guide groove 111 corresponding to each position, when the sliding piece 31 is clamped in one position and the knob assembly 21 is pressed, the sliding piece 31 slides along the guide surface, and the sliding piece 31 can slide into the corresponding concave part from one position. The knob assembly 21 is loosened, and the slider 31 slides from one recess to the other under the driving force of the restoring member 41.

Specifically, the first stopper 1121 is located on the inner groove wall, the outer groove wall forms a first recess 1131 located below the first stopper 1121, and the first recess 1131 and the first stopper 1121 are disposed in a staggered manner along the horizontal direction.

When the slider 31 is engaged with the first detent 1121, the knob assembly 21 is pressed to drive the slider 31 to be disengaged from the first detent 1121 and abut against the first recess 1131, the knob assembly 21 is released, and the slider 31 slides into the second detent 1122 from the first recess 1131 under the driving force of the reset element 41.

A first guide surface 1141 is disposed on the outer slot wall at a position corresponding to the first detent 1121, and the first guide surface 1141 is configured to: when the slider 31 is engaged with the first stopper 1121 and the knob assembly 21 is pressed, the slider 31 is guided to slide toward the first recess 1131. The first recessed portion 1131 is located at a bottom end of the first guide surface 1141, and the first guide surface 1141 extends obliquely from top to bottom.

The guide groove 111 is formed with a first channel 1111 extending in the axial direction of the stem link 11, and the second detent 1122 and the first recess 1131 are respectively located at both ends of the first channel 1111.

During the process of sliding the slider 31 from the first recess 1131 into the second detent 1122, the slider 31 slides along the first channel 1111.

The second detent 1122 is located on the outer groove wall, the inner groove wall forms a second recess 1132 located below the second detent 1122, when the slider 31 is engaged with the second detent 1122, the knob assembly 21 is pressed to drive the slider 31 to disengage from the second detent 1122, and the pushing rod connection member 11 is pushed down together with the second recess 1132.

A second guiding surface 1142 is disposed on the inner slot wall corresponding to the second detent 1122, and the second guiding surface 1142 is configured to: when the slider 31 is engaged with the second engagement portion 1122 and the knob assembly 21 is pressed, the slider 31 is guided to slide toward the second recessed portion 1132.

The guide groove 111 is formed with a second channel 1112 extending in the axial direction of the stem connector 11, and the second recess 1132 and the third stopper 1123 are located at both ends of the second channel 1112, respectively.

When the slider 31 is located in the second recess 1132, the knob assembly 21 is loosened, and under the driving force of the resetting member 41, the slider 31 is disengaged from the second recess 1132, enters the second channel 1112, and slides along the second channel 1112 to the third clamping position 1123.

The third clamping portion 1123 is located on the outer groove wall, the guide groove 111 is formed with a third channel 1113 extending axially along the stem connector 11, the outer groove wall is formed with a third recess 1133, and the third clamping portion 1123 and the third recess 1133 are located at two ends of the third channel 1113, respectively.

When the sliding member 31 is engaged with the third engaging portion 1123, the knob assembly 21 is pressed to drive the sliding member 31 to be disengaged from the third engaging portion 1123 and slide to the third recess 1133 along the third channel 1113, and the knob assembly 21 is released, so that the sliding member 31 is disengaged from the third recess 1133 under the driving force of the restoring member 41 to be engaged with the first engaging portion 1121.

A third guide surface 1143 is disposed on the inner slot wall between the third bayonet 1123 and the third channel 1113, the third guide surface 1143 being configured to: when the sliding member 31 is engaged with the third engagement 1123 and presses the knob assembly 21, the sliding member 31 is guided to slide toward the third channel 1113.

A fourth guide surface 1144 is disposed on the outer groove wall, one end of the fourth guide surface 1144 is connected to the third recess 1133, and the other end is connected to one end of the third channel 1113, and the fourth guide surface 1144 is configured to: after the slider 31 slides out of the third channel 1113, the slider 31 is guided to slide toward the third recess 1133.

The first channel 1111, the second channel 1112 and the third channel 1113 may be linear channels or arc channels.

When the gas oven provided by the embodiment is used, the telescopic knob 130 is pressed and loosened, so that the sliding member 31 is clamped into the second clamping position 1122, the knob assembly 21 is pressed, the sliding member 31 is driven to be disengaged from the second clamping position 1122, and after the sliding member is abutted against the second recessed portion 1132, the pushing valve rod connecting member 11 descends together to perform an ignition operation. At this time, the knob assembly 21 is rotated to drive the valve rod connecting piece 11 to rotate synchronously, so that the ignition is realized. After the fire is successfully struck, the knob assembly 21 is loosened, and the slider 31 is disengaged from the second recess 1132, enters the second channel 1112 and slides along the second channel 1112 to the third clamping position 1123 under the driving force of the reset member 41.

When the gas oven is not needed to be used, the telescopic knob 130 is pressed and loosened, so that the sliding piece 31 is clamped into the first clamping position 1121, and at the moment, the knob assembly 21 is flush with the panel assembly 110, and the attractiveness and tidiness of the whole gas oven are effectively improved.

In essence, after the slider 31 abuts on the first recess 1131, the knob assembly 21 is further pushed and lowered together with the stem link 11. Similarly, after the slider 31 abuts against the third recess 1133, the knob assembly 21 is further pressed, and the stem link 11 is pushed and lowered together.

In this embodiment, the control assembly 120 is fixed to the back side of the panel assembly 110 by the fixing bracket 140. The control unit 120 is provided with a rotation shaft 150, and the rotation shaft 150 is connected to the valve stem link 11.

Specifically, the telescopic knob 130 further includes a spring plate 12, an installation groove 118 is formed in one end of the valve rod connector 11, the rotating shaft 150 is inserted into the installation groove 118, the spring plate 12 is clamped between the rotating shaft 150 and the valve rod connector 11, and the valve rod connector 11 can drive the rotating shaft 150 to rotate.

In this embodiment, the control component 120 includes a timer 1201, a multi-way switch 1202, and a thermo-valve assembly 1203, wherein the thermo-valve assembly 1203 includes a thermo-valve 1204, a connecting pipe 1205 connected to the thermo-valve 1204, and a pressure-stabilizing valve 1206 disposed on the connecting pipe 1205. The timer 1201, the multi-way switch 1202 and the thermo valve 1204 of this embodiment are all provided with a rotating shaft 150, and each rotating shaft 150 is respectively used for being connected with the valve rod connecting piece 11 of a different telescopic knob 130, so as to trigger a corresponding control element through the telescopic knob 130 and drive the corresponding rotating shaft 150 to rotate.

The inside cavity of the sliding sleeve 212 of the knob component 21 forms an accommodating cavity, the valve rod connecting piece 11 is located in the accommodating cavity, a limiting groove is formed on the inner wall of the accommodating cavity, a sliding rail 116 is arranged on the outer wall of the valve rod connecting piece 11, and the sliding rail 116 is in sliding fit with the limiting groove to ensure the stability of sliding.

One end of the guide groove 111 is provided with a first notch 115, one end of the sliding groove 2121 is provided with a second notch 2122, and the second notch 2122 can be communicated with the first notch 115. During installation, the sliding sleeve 212 is firstly sleeved on the valve rod connecting member 11, so that the second notch 2122 is communicated with the first notch 115, and then the sliding member 31 is inserted into the guiding groove 111 and the sliding groove 2121 through the communication position between the second notch 2122 and the first notch 115.

One end of the valve rod connecting piece 11 is provided with a first limiting hole 117, one end of the knob assembly 21 is provided with a second limiting hole, one end of the resetting piece 41 is inserted into the first limiting hole 117, and the other end of the resetting piece 41 is inserted into the second limiting hole.

Specifically, one end of the valve rod connecting piece 11 is provided with a first limiting column, and a first limiting hole 117 is formed in the first limiting column; one end of the sliding sleeve 212 is provided with a second limiting post, a second limiting hole is formed in the second limiting post, the second limiting hole is communicated with the accommodating cavity, and the first limiting post is inserted into the second limiting hole.

The slider 31 includes a slider body 311 and protrusions 312 provided on both sides of the slider body 311, one protrusion 312 slidably engaged with the guide groove 111, and the other protrusion 312 slidably engaged with the slide groove 2121.

In the accommodating cavity of the sliding sleeve 212, an accommodating groove 2123 is formed on an inner wall of the accommodating cavity, the accommodating groove 2123 is communicated with the sliding groove 2121, the sliding body 311 is located in the accommodating groove 2123, and the accommodating groove 2123 provides an accommodating space for the sliding body 311.

Referring to fig. 12-15, the knob assembly 21 is in a first position where the knob assembly 21 is flush with the knob sleeve 51 for easy cleaning. At this time, the slider 31 is located in the first stopper 1121 of the guide groove 111.

When the knob assembly 21 is pressed, the knob assembly 21 slides relative to the stem link 11, the restoring member 41 is compressed, the slider 31 is disengaged from the first detent 1121, the first guide surface 1141 guides the slider 31 to slide toward the first recess 1131, and after the slider 31 slides into the first recess 1131, as shown in fig. 16, the moving path of the slider 31 is shown by the dotted line in fig. 16.

When the knob assembly 21 is loosened, the reset member 41 generates a driving force to the knob assembly 21, and the knob assembly 21 is moved to the second position by the driving force of the reset member 41. Specifically, the sliding member 31 escapes from the first recess 1131, slides into the second detent 1122 along the first channel 1111 and is snapped into the second detent 1122, as shown in fig. 17, which is a moving path of the sliding member 31 shown by a dotted line in fig. 17.

Referring to fig. 18 to 21, the knob assembly 21 is in the second position, in which the sliding member 31 is snapped into the second detent 1122, and the knob assembly 21 protrudes from the panel assembly 110. Specifically, the knob assembly 21 extends a first set length relative to the knob sleeve 51.

When the slider 31 is engaged in the second detent 1122, the knob assembly 21 is pressed, the knob assembly 21 slides relative to the stem link 11, the reset member 41 is compressed, the slider 31 is disengaged from the second detent 1122, the second guide surface 1142 guides the slider 31 to slide toward the second recess 1132, and the slider 31 slides into the second recess 1132, as shown in fig. 22, the path of movement of the slider 31 is shown by the broken line in fig. 22. After the sliding member 31 abuts against the second recess 1132, the knob assembly 21 is continuously pressed, so that the valve rod connector 11 is pushed to descend together, thereby realizing ignition. Meanwhile, the valve rod connecting piece 11 can be driven to rotate by rotating the knob assembly 21, so that ignition is realized.

When the slider 31 is located in the second recess 1132, the knob assembly 21 is released, and the reset member 41 generates a driving force to the knob assembly 21, so that the knob assembly 21 moves to the third position. Specifically, the sliding member 31 is disengaged from the second recess 1132, slides along the second channel 1112 to the third position 1123 and is clamped in the third position 1123, as shown in fig. 23, and the moving path of the sliding member 31 is shown by the broken line in fig. 23.

Referring to fig. 24 to 27, the knob assembly 21 is in the third position, in which the sliding member 31 is clamped in the third clamping position 1123, and the knob assembly 21 protrudes from the panel assembly 110. Specifically, the knob assembly 21 extends a second set length relative to the knob sleeve 51.

When the slider 31 is engaged with the third engagement 1123, the knob assembly 21 is pressed, the knob assembly 21 slides relative to the stem link 11, the restoring member 41 is compressed, the slider 31 is disengaged from the third engagement 1123, the third guide surface 1143 guides the slider 31 to slide toward the third channel 1113, the slider 31 slides along the third channel 1113, the fourth guide surface 1144 guides the slider 31 to slide toward the third recess 1133, and the slider 31 slides into the third recess 1133, as shown in fig. 28, the moving path of the slider 31 is shown by the broken line in fig. 28. When the knob assembly 21 is released, the reset member 41 generates a driving force for the knob assembly 21, and the sliding member 31 is disengaged from the third recess 1133, slides into the first stopper 1121 and is locked into the first stopper 1121, as shown in fig. 15.

In summary, the knob assembly 21 is cyclically movable between three positions, and the slide 31 is movable between three detents, three channels and three recesses.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (12)

1. A telescoping knob, comprising:

the valve rod connecting piece (11) is provided with a guide groove (111) which is annularly arranged, and the groove wall of the guide groove (111) is provided with three clamping positions which are sequentially distributed along the axial direction of the valve rod connecting piece (11) and are respectively a first clamping position (1121), a second clamping position (1122) and a third clamping position (1123);

the knob assembly (21) is movably sleeved on the valve rod connecting piece (11) along the axial direction of the valve rod connecting piece (11), a sliding groove (2121) is formed in the knob assembly (21), and the extending direction of the sliding groove (2121) is perpendicular to the axial direction;

a sliding member (31) having a first end and a second end, the first end being slidably disposed in the guide slot (111), the second end being slidably disposed in the sliding slot (2121), when the knob assembly (21) retracts relative to the valve rod connector (11), the first end being capable of sliding along the guide slot (111) to be sequentially engaged with the first detent (1121), the second detent (1122) and the third detent (1123), and the second end being capable of sliding in the sliding slot (2121); and

a reset member (41) disposed between the valve stem connector (11) and the knob assembly (21).

2. The retracting knob according to claim 1, wherein the guide groove (111) has an inner groove wall and an outer groove wall, the outer groove wall is disposed around the outer circumference of the inner groove wall and spaced from the inner groove wall, the second detent (1122) is located on the outer groove wall, the inner groove wall forms a second recess (1132) located below the second detent (1122), and when the sliding member (31) is engaged with the second detent (1122), the knob assembly (21) is pressed to drive the sliding member (31) to be disengaged from the second detent (1122), and the valve rod connecting member (11) is pushed to descend together with the second recess (1132).

3. The telescoping knob of claim 2, wherein a second guide surface (1142) is provided on the inner slot wall at a location corresponding to the second detent (1122), the second guide surface (1142) configured to: when the slider (31) is engaged with the second engaging portion (1122) and the knob assembly (21) is pressed, the slider (31) is guided to slide toward the second recess (1132).

4. The retracting knob according to claim 2, wherein said guide groove (111) is formed with a second channel (1112) extending axially along said stem connector (11), said second recess (1132) and said third detent (1123) being located at both ends of said second channel (1112), respectively;

when the slider (31) is located in the second recess (1132), the knob assembly (21) is loosened, and under the action of the driving force of the resetting piece (41), the slider (31) is disengaged from the second recess (1132), enters the second channel (1112), and slides along the second channel (1112) to the third detent (1123).

5. The telescopic knob according to claim 1, wherein the guide groove (111) has an inner groove wall and an outer groove wall, the outer groove wall is disposed around the outer circumference of the inner groove wall and spaced apart from the inner groove wall, the first stopper (1121) is located on the inner groove wall, the outer groove wall forms a first recess (1131) located below the first stopper (1121), and the first recess (1131) is horizontally offset from the first stopper (1121);

when the sliding piece (31) is clamped in the first clamping position (1121), the knob component (21) is pressed to drive the sliding piece (31) to be disengaged from the first clamping position (1121) and abut against the first recess (1131), the knob component (21) is loosened, and under the action of the driving force of the resetting piece (41), the sliding piece (31) slides into the second clamping position (1122) from the first recess (1131).

6. The telescoping knob according to claim 5, wherein a first guide surface (1141) is provided on the outer slot wall at a location corresponding to the first detent (1121), the first guide surface (1141) being configured to: when the sliding piece (31) is clamped on the first clamping position (1121) and the knob component (21) is pressed, the sliding piece (31) is guided to slide towards the first concave part (1131).

7. The telescopic knob according to claim 5, wherein the guide groove (111) is formed with a first channel (1111) extending in an axial direction of the stem link (11), the second detent (1122) and the first recess (1131) being located at both ends of the first channel (1111), respectively;

during the sliding of the slider (31) from the first recess (1131) into the second detent (1122), the slider (31) slides along the first channel (1111).

8. The retracting knob according to claim 1, wherein the guide groove (111) has an inner groove wall and an outer groove wall, the outer groove wall is disposed around the outer circumference of the inner groove wall and spaced apart from the inner groove wall, the third detent (1123) is located on the outer groove wall, the guide groove (111) is formed with a third passage (1113) extending axially along the stem connector (11), the outer groove wall is formed with a third recess (1133), and the third detent (1123) and the third recess (1133) are located at both ends of the third passage (1113), respectively;

when slider (31) card was located third screens (1123), press knob subassembly (21), drive slider (31) are followed third screens (1123) are deviate from, get into third passageway (1113), and follow third passageway (1113) slide to third depressed part (1133), loosen knob subassembly (21), reset under the effect of the drive power of piece (41), slider (31) are followed third depressed part (1133) are deviate from to the card is gone into first screens (1121).

9. The telescoping knob of claim 8, wherein the inner slot wall is provided with a third guide surface (1143) located between the third detent (1123) and the third channel (1113), the third guide surface (1143) being configured to: when the sliding piece (31) is clamped in the third clamping position (1123) and presses the knob assembly (21), the sliding piece (31) is guided to slide towards the third channel (1113).

10. The telescoping knob of claim 8, wherein a fourth guide surface (1144) is disposed on the outer slot wall, the fourth guide surface (1144) being connected to the third recess (1133) at one end and to the third channel (1113) at another end, the fourth guide surface (1144) being configured to: guiding the slider (31) to slide towards the third recess (1133) after the slider (31) slides out of the third channel (1113).

11. A gas cooking appliance comprising a telescopic knob according to any one of claims 1 to 10.

12. The gas cooking appliance according to claim 11, comprising a housing (100), a panel assembly (110) provided on the housing (100), and a control assembly (120) mounted on the panel assembly (110), the telescopic knob being mounted to the panel assembly (110);

when the sliding piece (31) is clamped into the first clamping position (1121), the knob component (21) is flush with the panel component (110); when the sliding piece (31) is clamped into the second clamping position (1122), the knob component (21) protrudes out of the panel component (110).

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