CN114935038A - Gear regulator, gas valve and gas stove - Google Patents

Abstract

The invention relates to the technical field of kitchen appliances, and discloses a gear regulator, a gas valve and a gas stove. When adjusting fender position, the trigger part is located one and is kept off the position groove in the elastic force of elastic component lower card, the knob of operation gas cooking utensils drives the valve rod rotation of gas valve and keeps off a position regulation action, the valve rod of gas valve drives the rolling disc synchronous rotation, the protruding trigger part of stirring between two adjacent fender position grooves slides on the base, the trigger part makes the elastic component produce elastic deformation, constantly rotate along with the rolling disc, stir protruding trigger part that staggers, the elastic potential energy release of elastic component, the elastic component promotes the trigger part and slides and block into another fender position inslot, keep off the damping and the sound that produce in the gear control process, the mechanical sense of touch and the sound feedback degree that keep off the position switching have been strengthened, convenience of customers controls the regulating variable of flame size, need not to bend the waist at every moment and look over flame size with low attention.

Description

Gear regulator, gas valve and gas stove

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a gear regulator, a gas valve and a gas cooker.

Background

The plug valve is a device for realizing the adjustment of the firepower of the gas stove, and the overlapping area of a channel on a valve core and a channel on a valve body is adjusted by rotating a valve rod to control the gas flow. The rotating angle of a valve rod of a common plug valve is not positioned, and a user is difficult to adjust the valve rod to the same position every time when adjusting the fire power of a gas stove. If can rotate the valve rod and carry on spacingly, divide into a plurality of fender positions with the plug valve, can let the user transfer fire more convenient.

Among some prior art, carry out the institutional transformation to the plug valve, carry out spacingly with plug valve body self to the valve rod, realized the accurate regulation of firepower. However, the sub-parts of the modified plug valve are not highly versatile and can only be applied to the plug valve. In addition, the assembly error causes poor limiting effect, uneven gear adjusting torsion and poor hand feeling, and the safety risk of air leakage can also exist after secondary assembly and disassembly.

Disclosure of Invention

Based on the above problems, the invention aims to provide a gear adjuster, a gas valve and a gas stove, which have the advantages of enhanced mechanical touch feeling of gear switching, strong universality and high safety.

In order to achieve the purpose, the invention adopts the following technical scheme:

in a first aspect, the present invention provides a gear adjuster comprising:

the base comprises a bottom plate used for being installed on the valve body, and a surrounding blocking part and an installation part which are convexly arranged on the bottom plate, wherein an accommodating cavity is formed in the surrounding blocking part, the installation part is positioned in the accommodating cavity, and a sliding groove is formed in the installation part;

the trigger assembly comprises a trigger piece in sliding fit with the sliding groove and an elastic piece clamped between the trigger piece and the base;

the rolling disc is used for rotating synchronously with the valve rod, the rolling disc can be rotatably arranged in the accommodating cavity, at least two blocking grooves are formed in the peripheral wall of the rolling disc and are adjacent to each other, a shifting protrusion is formed between the blocking grooves, when the rolling disc rotates, the shifting protrusion can shift the trigger piece, under the elastic action force of the elastic piece, the trigger piece can be clamped into the blocking groove to form the blocking groove.

As an alternative to the gear adjuster of the invention, the trigger is a ball, the slide is cylindrical and the diameter of the trigger is the same as the inner diameter of the slide.

As an alternative of the gear adjuster, the elastic member is a spring plate, the surrounding blocking portion is provided with an avoiding opening, the elastic member can elastically deform towards the avoiding opening under the extrusion action of the trigger member, and two ends of the elastic member are respectively attached to the surrounding blocking portion.

As an alternative of the gear adjuster of the present invention, two limit blocks are disposed on an inner side wall of the blocking portion, the two limit blocks are respectively located at two sides of the avoiding opening, and two ends of the elastic member can respectively abut against the two limit blocks.

As an alternative of the gear adjuster of the present invention, both side end surfaces of the rotating disk are inclined surfaces or arc surfaces.

As an alternative of the gear regulator, two opposite sides of the bottom plate are respectively provided with a plurality of barb-shaped buckles, the valve body is provided with a support, and the barb-shaped buckles are clamped with the support.

As an alternative of the gear adjuster, the gear adjuster further comprises a cover body connected with the base and a cover body buckled with the base, wherein a first through hole is formed in the cover body, a second through hole is formed in the base plate and communicated with the accommodating cavity, two limiting bosses are respectively arranged on two sides of the rotating disc, one limiting boss is matched with the first through hole, and the other limiting boss is matched with the second through hole.

As an alternative of the gear adjuster of the present invention, a third through hole is formed in the limiting boss, a key block is disposed in the third through hole, a limiting hole is formed by the key block and an inner side wall of the second through hole in an enclosing manner, the valve rod penetrates through the limiting hole, and the key block is matched with a key groove of the valve rod.

In a second aspect, the invention further provides a gas valve, which comprises a valve body, a valve rod, a valve core and the gear regulator.

In a third aspect, the invention further provides a gas cooker, which comprises the gas valve.

The invention has the beneficial effects that:

when the gear is adjusted, the trigger piece is clamped in one gear groove under the elastic action force of the elastic piece, the knob of the gas cooker is operated to drive the valve rod of the gas valve to rotate to perform gear adjustment action, the valve rod of the gas valve drives the rotating disc to synchronously rotate, the toggle bulge between every two adjacent gear grooves toggles the trigger piece to slide on the base, the elastic piece is elastically deformed by the trigger piece, the toggle bulge staggers the trigger piece along with the continuous rotation of the rotating disc, the elastic potential energy of the elastic piece is released, the elastic piece pushes the trigger piece to slide and clamp in the other gear groove, and the damping and the sound generated in the gear adjustment process enhance the mechanical touch and sound feedback degree of gear switching, so that a user can conveniently control the adjustment quantity of the flame size without bending the waist and looking over the flame size at any time, in addition, the gear regulator is installed on the valve body of the gas valve through the base, the internal structure of the gas valve of the existing gas cooker does not need to be disassembled and assembled, and the gear regulator is high in universality and safety.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings may be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic diagram of a range regulator mounted on a gas valve according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of a gear adjuster according to an embodiment of the present invention;

FIG. 3 is a schematic top view of a gear adjuster according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a gear adjuster provided in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of a rotary plate of the gear adjuster according to the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a cover body in the gear adjuster according to the embodiment of the present invention.

In the figure:

1-a base; 2-a trigger component; 3-rotating the disc; 4-cover body; 5-a support; 6-screw;

11-a containment chamber; 111-avoiding the opening; 112-a stop block; 12-a mounting portion; 121-a chute; 13-barb-shaped buckle; 14-a second via; 15-a positioning column; 151-threaded hole; 16-a base plate; 17-a fence;

21-a trigger; 22-an elastic member;

31-a stop groove; 32-toggle protrusion; 33-a limit boss; 34-a third through hole; 35-a key block; 36-a limiting hole;

41-a first through hole; 42-connecting hole;

100-a gas valve; 101-a valve body; 102-a valve stem; 1021-keyway.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, the present embodiment provides a gear adjuster, suitable for use in a gas valve 100 of a gas cooker, for feeding back a tactile sensation and a sound of gear shifting, the gear adjuster including a base 1, a trigger assembly 2, and a rotary disc 3. The base 1 comprises a bottom plate 16 used for being installed on a valve body 101 of the gas valve 100, a surrounding baffle portion 17 and an installation portion 12, wherein the surrounding baffle portion 17 and the installation portion 12 are convexly arranged on the bottom plate 16, a containing cavity 11 is formed in the surrounding baffle portion 17, the installation portion 12 is located in the containing cavity 11, and a sliding groove 121 is formed in the installation portion 12. The trigger assembly 2 includes a trigger 21 slidably engaged with the sliding slot 121 and an elastic member 22 interposed between the trigger 21 and the base 1. The rotating disc 3 is used for synchronously rotating with a valve rod 102 of the gas valve 100, the rotating disc 3 can be rotatably arranged in the accommodating cavity 11, at least two retaining grooves 31 are formed in the outer peripheral wall of the rotating disc 3, and a shifting protrusion 32 is formed between every two adjacent retaining grooves 31. When the rotating disc 3 rotates, the toggle protrusion 32 can toggle the trigger 21, and under the elastic force of the elastic member 22, the trigger 21 can be clamped into the other stop groove 31 from one stop groove 31. The rotating disc 3 is a rotating body, and is convenient to stir the trigger part 21 by the stirring protrusion 32 when rotating synchronously with the valve rod 102.

The accommodating cavity 11 reduces the overall height of the gear adjuster to adapt to the limited installation space of the existing gas cooker. In this embodiment, the base 1 is square as a whole, the accommodating cavity 11 is approximately square, and the center point of the accommodating cavity 11 coincides with the rotation axis of the rotating disc 3.

The installation part 12 is located the edge of holding the chamber 11, avoids interfering with the rolling disc 3, can be massive structure, makes things convenient for processing manufacturing. The sliding groove 121 may be a circular hole, the sliding groove 121 extends along the radial direction of the rotating disc 3, and the trigger 21 can only slide in the sliding groove 121 and slide in the radial direction of the rotating disc 3 under the limiting effect of the sliding groove 121. Of course, the sliding groove 121 may also be square hole shaped, and it is only necessary to adapt to the shape of the trigger 21, and this is not limited herein.

When the gear is adjusted, the trigger 21 is clamped in one gear groove 31 under the elastic acting force of the elastic part 22, the knob of the gas cooker is operated to drive the valve rod 102 of the gas valve 100 to rotate to perform gear adjustment, the valve rod 102 of the gas valve 100 drives the rotating disc 3 to synchronously rotate, the toggle protrusion 32 between two adjacent gear grooves 31 toggles the trigger 21 to slide on the base 1, the trigger 21 enables the elastic part 22 to generate elastic deformation, the toggle protrusion 32 staggers the trigger 21 along with the continuous rotation of the rotating disc 3, the elastic potential energy of the elastic part 22 is released, the elastic part 22 pushes the trigger 21 to slide and be clamped in the other gear groove 31, the damping and the sound generated in the gear adjustment process enhance the mechanical touch and the sound feedback degree of gear switching, a user can conveniently control the adjustment amount of the flame size, the user does not need to bend the waist and look over the flame size at the head all the time, in addition, the gear regulator is installed on the valve body 101 of the gas valve 100 through the base 1, the internal structure of the gas valve 100 of the existing gas cooker does not need to be disassembled and assembled, and the gear regulator is high in universality and safety.

In order to improve the mechanical touch of the gear in the whole rotation process of the synchronous rotation of the rotating disc 3 and the valve rod 102, the at least two gear grooves 31 are uniformly distributed along the circumferential direction of the rotating disc 3 as a whole, and the contact surface between the gear grooves 31 and the trigger part 21 is an inclined surface or an arc surface, so that the gear grooves 31 and the trigger part 21 are prevented from being locked. The stop grooves 31 may be formed over the entire circumferential side wall of the rotary disk 3, or may be formed according to the rotation angle of the valve rod 102, or the stop grooves 31 may be formed over a part of the circumferential side wall of the rotary disk 3, thereby reducing the processing cost. In this embodiment, the retaining groove 31 is an arc-shaped groove, the toggle protrusion 32 is a square tooth-shaped structure, the trigger 21 is a spherical structure, and the radius of curvature of the retaining groove 31 is substantially the same as the radius of the trigger 21.

As shown in fig. 2, optionally, the triggering member 21 is a ball, the sliding slot 121 is cylindrical, and the diameter of the triggering member 21 is the same as the inner diameter of the sliding slot 121 to avoid being locked with the stop groove 31. Optionally, the elastic member 22 is an elastic sheet, occupies a small space, and is easy to replace, the enclosure portion 17 is provided with an avoidance opening 111, the elastic member 22 can elastically deform toward the avoidance opening 111 under the extrusion action of the trigger member 21, and two ends of the elastic member 22 respectively abut against the enclosure portion 17. In another embodiment, the trigger 21 may also be a cylindrical structure with one end being a spherical surface and the other end being a flat surface, the end of the spherical surface is engaged with the retaining groove 31, and the end of the flat surface is engaged with the elastic member 22. In another embodiment, the elastic member 22 may also be a spring, so as to control the elastic coefficient of the elastic member 22.

The escape opening 111 provides a sufficient deformation space margin for elastic deformation of the elastic member 22 when the triggering member 21 slidably presses the elastic member 22. In another embodiment, when the elastic member 22 is a spring, the escape opening 111 can be omitted, thereby reducing the manufacturing cost.

As shown in fig. 2 and fig. 3, optionally, two limit blocks 112 are disposed on the inner side wall of the surrounding portion 17, the two limit blocks 112 are respectively located at two sides of the avoiding opening 111, and two ends of the elastic member 22 can respectively abut against the two limit blocks 112. The two ends of the elastic member 22 can abut against the limiting blocks 112 respectively, so that the elastic member 22 is limited, and the elastic member 22 is prevented from moving to influence the reset of the trigger member 21. In another embodiment, when the elastic member 22 is a spring, the limiting block 112 can be omitted, so as to reduce the processing cost.

As shown in fig. 4 and 5, in order to reduce the area of the friction contact surface between the rotating disc 3 and the base 1 and the cover 4, optionally, both side end surfaces of the rotating disc 3 are inclined surfaces or arc surfaces. That is, the center of the rotary disk 3 is thick, and the edge of the rotary disk 3 is thin.

Optionally, two opposite sides of the bottom plate 16 are respectively provided with a plurality of barb-shaped buckles 13, the valve body 101 is provided with a bracket 5, and the barb-shaped buckles 13 are clamped with the bracket 5. The bracket 5 can be fixedly connected to the valve body 101 through fasteners such as bolts and nuts, and the base 1 is indirectly connected with the valve body 101 through the bracket 5. The barb-shaped buckles 13 can be arranged in a plurality of ways, so that the clamping firmness degree is improved, and looseness is avoided. In this embodiment, two barb-shaped buckles 13 are respectively disposed on two opposite outer side walls of the base 1 at intervals, and four barb-shaped buckles 13 are approximately distributed at four corners of the base 1. The barb-shaped buckle 13 can be integrally injection-molded with the base 1, one end of the barb-shaped buckle 13 is in a barb-shaped structure, a user presses the other ends of the two barb-shaped buckles 13 respectively, the barb-shaped structures of the two barb-shaped buckles 13 can be kept away from each other, after the barb-shaped structures are hooked with the support 5, the other ends of the two barb-shaped buckles 13 are loosened, and the barb-shaped structures of the two barb-shaped buckles 13 can be clamped with the support 5.

The gear regulator can further comprise a cover body 4 buckled with the base 1, a first through hole 41 is formed in the cover body 4, a second through hole 14 is formed in the base plate 16, the second through hole 14 is communicated with the accommodating cavity 11, two limiting bosses 33 are respectively arranged on two sides of the rotating disc 3, one limiting boss 33 is matched with the first through hole 41, and the other limiting boss 33 is matched with the second through hole 14. Because the base 1 and the cover 4 are fixed, the rotating disc 3 can only rotate around the axis of the rotating disc 3 under the limit constraint of the first through hole 41 and the second through hole 14 on the limit boss 33, and the valve rod 102 is prevented from being damaged by the rotating disc 3. In this embodiment, base 1 is provided with around dodging the space, makes things convenient for lid 4 lock on base 1. For the convenience of manufacture, the limit boss 33 is a hollow cylindrical structure coaxially disposed with the rotary disk 3, and the first through hole 41 and the second through hole 14 are circular grooves coaxially disposed with the limit boss 33, respectively.

In addition, a connecting hole 42 is formed in the cover 4, a positioning column 15 is arranged on the base 1, a threaded hole 151 is formed in the positioning column 15, and the screw 6 penetrates through the connecting hole 42 to be in threaded connection with the threaded hole 151. In this embodiment, four counter-sunk connection holes 42 are distributed at four corners of the square cover 4, four positioning posts 15 are distributed at four corners of the base 1, and each positioning post 15 is provided with a circular threaded hole 151. Reference column 15 can be for quarter circle form, and reference column 15 and screw hole 151 coaxial setting, reference column 15 and the integrative injection moulding of base 1. The four screws 6 respectively penetrate through one connecting hole 42 to be in threaded connection with the corresponding threaded hole 151, and thus the four screws can avoid the rotating disc 3 and can strengthen the connecting strength of the base 1 and the cover body 4.

As shown in fig. 2, optionally, a third through hole 34 is formed in the limiting boss 33, a key block 35 is disposed in the third through hole 34, the key block 35 and the inner side wall of the second through hole 14 are surrounded to form a limiting hole 36, the valve rod 102 penetrates through the limiting hole 36, the key block 35 is matched with the key groove 1021 of the valve rod 102 as shown in fig. 1, and under the limiting matching of the limiting hole 36 and the valve rod 102, the rotating disc 3 can rotate synchronously with the valve rod 102. The shape of the limiting hole 36 is the same as the cross-sectional shape of the valve stem 102, and may be an arch shape, so as to prevent the rotary disk 3 and the valve stem 102 from rotating relatively.

In the gear adjuster provided by the embodiment, when adjusting the gear, the trigger 21 is clamped in one of the gear slots 31 under the elastic force of the elastic member 22, the knob of the gas cooker is operated to drive the valve rod 102 of the gas valve 100 to rotate to perform the gear adjusting action, the valve rod 102 of the gas valve 100 drives the rotating disc 3 to synchronously rotate, the toggle protrusion 32 between two adjacent gear slots 31 toggles the trigger 21 to slide on the base 1, the trigger 21 causes the elastic member 22 to generate elastic deformation, the toggle protrusion 32 staggers the trigger 21 along with the continuous rotation of the rotating disc 3, the elastic potential energy of the elastic member 22 is released, the elastic member 22 pushes the trigger 21 to slide and be clamped in the other gear slot 31, the damping and the sound generated in the gear adjusting process enhance the mechanical touch and the sound feedback degree of gear switching, a user can conveniently control the adjustment amount of the flame size, the user does not need to bend to look over the flame size all the time around, in addition, the gear regulator is installed on the valve body 101 of the gas valve 100 through the base 1, the internal structure of the gas valve 100 of the existing gas cooker does not need to be disassembled and assembled, and the gear regulator is high in universality and safety.

This embodiment still provides a gas valve, including foretell fender position regulator, still include valve body 101, valve rod 102 and case, when adjusting the fender position, the knob of operation gas cooking utensils and control valve rod 102, generally press knob and anticlockwise rotation earlier, can drive case anticlockwise rotation through valve rod 102, make the inlet channel in fire hole and the valve body 101 on the case be linked together, the air supply can be through inlet channel, outlet channel and from the nozzle blowout, supply gas cooking utensils to use, this is prior art, no longer gives unnecessary details here.

The base 1 of the gear regulator is installed on the valve body 101, the internal structure of the gas valve 100 of the existing gas cooker does not need to be disassembled and assembled, and the gear regulator is high in universality and safety. The rotary disc 3 of the gear adjuster rotates synchronously with the valve stem 102. In the gear adjusting process, the trigger 21 is clamped in one gear groove 31 under the elastic acting force of the elastic part 22, a knob of the gas cooker is operated to drive a valve rod 102 of the gas valve 100 to rotate to perform gear adjusting action, the valve rod 102 of the gas valve 100 drives the rotary disc 3 to synchronously rotate, the toggle protrusion 32 between two adjacent gear grooves 31 toggles the trigger 21 to slide on the base 1, the trigger 21 enables the elastic part 22 to generate elastic deformation, the toggle protrusion 32 staggers the trigger 21 along with the continuous rotation of the rotary disc 3, the elastic potential energy of the elastic part 22 is released, the elastic part 22 pushes the trigger 21 to slide and be clamped in the other gear groove 31, damping and sound generated in the gear adjusting process are generated, the mechanical touch and sound feedback degree of gear switching is enhanced, a user can conveniently control the adjusting amount of flame size, and the user does not need to bend waist at any moment and look over the flame size at a low position.

The embodiment also provides a gas cooker, including foretell gas valve 100, keep off the damping and the sound that the position regulator produced in the position adjustment process, strengthened the mechanical touch and the sound feedback degree that keep off the position and switch, convenience of customers controls the regulating variable of flame size, need not to bend at all times and look over flame size with the waist down.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A gear adjuster, comprising:

the valve body (101) comprises a base (1) and a valve body, wherein the base (1) comprises a bottom plate (16) arranged on the valve body (101) and a surrounding blocking part (17) and an installation part (12) which are convexly arranged on the bottom plate (16), an accommodating cavity (11) is formed in the surrounding blocking part (17), the installation part (12) is positioned in the accommodating cavity (11), and a sliding groove (121) is formed in the installation part (12);

the trigger assembly (2) comprises a trigger piece (21) in sliding fit with the sliding groove (121) and an elastic piece (22) clamped between the trigger piece (21) and the base (1);

rolling disc (3) for rotate with valve rod (102) is synchronous, rolling disc (3) rotatable set up in hold chamber (11), be provided with two at least fender position groove (31) on the periphery wall of rolling disc (3), adjacent two keep off and be formed with between position groove (31) and stir arch (32), when rolling disc (3) rotate, stir arch (32) and can stir trigger piece (21) under the elastic force of elastic component (22), trigger piece (21) can be by one keep off position groove (31) card and go into another keep off in the position groove (31).

2. Gear adjuster according to claim 1, characterized in that the triggering member (21) is a ball and the slide groove (121) is cylindrical, the diameter of the triggering member (21) being the same as the inner diameter of the slide groove (121).

3. The gear adjuster according to claim 1, characterized in that the elastic member (22) is a spring plate, an avoiding opening (111) is formed in the surrounding portion (17), the elastic member (22) can elastically deform towards the avoiding opening (111) under the extrusion action of the trigger member (21), and two ends of the elastic member (22) are respectively attached to the surrounding portion (17).

4. The gear adjuster according to claim 3, characterized in that two limit blocks (112) are arranged on the inner side wall of the surrounding portion (17), the two limit blocks (112) are respectively located on two sides of the avoiding opening (111), and two ends of the elastic member (22) can respectively abut against the two limit blocks (112).

5. Gear adjuster according to claim 1, characterized in that the end surfaces of the turning disc (3) on both sides are inclined or curved.

6. The gear adjuster according to claim 1, characterized in that a plurality of barb-shaped buckles (13) are respectively arranged on two opposite sides of the bottom plate (16), a support (5) is arranged on the valve body (101), and the barb-shaped buckles (13) are clamped with the support (5).

7. The gear adjuster according to any one of claims 1 to 6, further comprising a cover (4) fastened to the base (1), wherein the cover (4) is provided with a first through hole (41), the base plate (16) is provided with a second through hole (14), the second through hole (14) is communicated with the accommodating cavity (11), two sides of the rotating disc (3) are respectively provided with a limiting boss (33), one limiting boss (33) is matched with the first through hole (41), and the other limiting boss (33) is matched with the second through hole (14).

8. The gear adjuster according to claim 7, characterized in that a third through hole (34) is formed in the limiting boss (33), a key block (35) is arranged in the third through hole (34), a limiting hole (36) is formed by the key block (35) and the inner side wall of the second through hole (14) in an enclosing mode, the valve rod (102) penetrates through the limiting hole (36), and the key block (35) is matched with a key groove (1021) of the valve rod (102).

9. A gas valve, characterized by comprising a valve body (101), a valve stem (102), a valve core and a gear adjuster according to any one of claims 1-8.

10. A gas cooking appliance comprising a gas valve as claimed in claim 9.

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