CN216569596U - Temperature-control steam valve and rice cooker - Google Patents

Abstract

The utility model discloses a temperature-controlled steam valve and a rice cooker, wherein the temperature-controlled steam valve comprises: the valve body device is provided with an installation channel; the valve cover is inserted in the installation channel, an exhaust channel is arranged between the outer side wall of the valve cover and the inner wall of the installation channel, and a sealing part positioned on the outlet side of the exhaust channel is arranged on the valve cover; the temperature control driving assembly comprises a first liquid storage shell and a deformation piece, an expansion opening is formed in the first liquid storage shell, the deformation piece is arranged at the expansion opening and is connected with the first liquid storage shell in a sealing mode, one of the first liquid storage shell and the deformation piece is connected with the valve body device, and the other of the first liquid storage shell and the deformation piece is connected with the valve cover. Through the structure, the heat absorption deformation amount of the temperature control driving component is improved, the displacement amount of the valve cover is further improved, and a large exhaust gap is formed between the sealing part and the outlet edge of the exhaust channel, so that steam in the rice cooker can be rapidly and massively exhausted.

Description

Temperature-control steam valve and rice cooker

Technical Field

The utility model relates to the technical field of cooking appliances, in particular to a temperature control steam valve and a rice cooker.

Background

A steam valve is usually provided on the rice cooker to discharge excess steam in the rice cooker when cooking food. Some steam valves adopt the control by temperature change structure, but be provided with the control by temperature change drive assembly of valve gap and temperature sensing deformation on the steam valve promptly, the steam valve is located to the valve gap insertion, forms exhaust passage between valve gap and the steam valve, and the valve gap seals exhaust passage, and control by temperature change drive assembly and valve gap cooperation, control by temperature change drive assembly take place deformation under the high temperature environment that contacts with steam, and then make control by temperature change drive assembly promote the valve gap and remove, open exhaust passage to reach the mesh of quick discharge steam. The temperature control driving assembly generally adopts a bimetallic strip which is in direct contact with steam, and the bimetallic strip deforms after absorbing heat of the steam to push the valve cover to move. However, the bimetallic strip deforms only by absorbing heat of the bimetallic strip, the amount of heat absorption deformation of the bimetallic strip is small, the displacement for pushing the valve cover to move is limited, the flowing area of steam flowing out is small, the flowing of the steam is influenced, and the steam is difficult to discharge quickly.

In addition, some bimetallic strips can be corroded after contacting with moisture for a long time, so that the temperature control driving assembly cannot be smoothly deformed or the deformation amount is very small in a high-temperature environment, and metal rust generated by corrosion easily enters food, so that the sanitation problem is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a temperature-controlled steam valve which can improve the amount of heat absorption deformation of a temperature-controlled driving component.

The utility model also provides a rice cooker with the temperature control steam valve

According to a first aspect of the present invention, there is provided a temperature controlled steam valve comprising: a valve body device provided with a mounting channel; the valve cover is inserted into the installation channel, an exhaust channel is arranged between the outer side wall of the valve cover and the inner wall of the installation channel, and a sealing part positioned on the outlet side of the exhaust channel is arranged on the valve cover; temperature control drive assembly, temperature control drive assembly includes first liquid storage shell and deformation, be provided with the inflation mouth on the first liquid storage shell, deformation set up in inflation mouth department, and with first liquid storage shell sealing connection, both one of them meet with the valve body device of first liquid storage shell and deformation, both another of them meet with the valve gap of first liquid storage shell and deformation.

According to the temperature-controlled steam valve, the valve cover can vertically displace and/or angularly displace and/or horizontally displace relative to the valve body device.

According to the temperature-controlled steam valve, the installation channel is vertically arranged, the valve cover is provided with an installation cavity with a downward opening, and the first liquid storage shell and the deformation piece are located in the installation cavity.

According to the temperature-controlled steam valve, the installation channel is vertically arranged, a convex part and a limiting ring are arranged in the installation channel, the limiting ring and the inner wall of the installation channel are arranged at intervals, the convex part is respectively connected with the inner wall of the installation channel and the limiting ring, and the valve cover is arranged on the limiting ring in a penetrating mode.

According to the temperature-controlled steam valve, the bottom of the valve cover is fixedly provided with the clamping hook, and the head of the clamping hook is positioned below the limiting ring.

According to the temperature-controlled steam valve, the valve body device comprises: a first valve seat provided with the mounting passage; the second valve seat is detachably connected with the first valve seat, a guide shell is arranged at the bottom of the second valve seat, the guide shell extends upwards to the bottom of the valve cover, the bottom of the guide shell is open, an air inlet is formed in the top of the guide shell, and the air inlet is communicated with the inlet side of the exhaust channel.

According to the temperature control steam valve, the temperature control driving assembly further comprises a second liquid storage shell, and a pipeline is connected between the first liquid storage shell and the second liquid storage shell.

According to the temperature-controlled steam valve, the deformation piece is a bimetallic strip.

According to the temperature-control steam valve, the outer surface of the deformation piece is coated with an anti-rust layer.

According to a second aspect of the utility model, there is provided a rice cooker comprising a temperature controlled steam valve as described above.

The scheme has at least one of the following beneficial effects:

through the structure, the expandable liquid absorbs heat to expand so as to drive the deformation piece to deform under pressure, the heat absorption capacity of the expandable liquid is large, the deformation quantity of the expandable liquid is also large, the deformation piece can be driven to generate a larger deformation quantity, the heat absorption deformation quantity of the temperature control driving assembly is improved, the displacement quantity of the valve cover is further improved, a large exhaust gap is formed between the sealing part and the outlet edge of the exhaust channel, and steam in the rice cooker can be rapidly and massively exhausted;

the outer surfaces of the first liquid storage shell and the deformation piece can absorb heat and conduct the heat to the expandable liquid, and the temperature control driving assembly has a large heat absorption surface, so that the expandable liquid can be rapidly heated and expanded, the temperature control driving assembly can rapidly act when the temperature rises, and the reaction sensitivity of the temperature control steam valve to the temperature rise is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a block diagram of a first embodiment of a temperature controlled steam valve of the present invention;

FIG. 2 is a cross-sectional view of the temperature controlled steam valve shown in FIG. 1;

FIG. 3 is an exploded view of the temperature controlled steam valve shown in FIG. 1;

FIG. 4 is a block diagram of the first valve seat shown in FIG. 3;

FIG. 5 is a block diagram of the valve seat housing shown in FIG. 3;

FIG. 6 is a schematic view of the valve cover and valve body assembly of a second embodiment of the temperature controlled steam valve of the present invention;

FIG. 7 is a schematic view of the valve cover and valve body assembly of a third embodiment of the temperature controlled steam valve of the present invention;

FIG. 8 is a schematic view of the valve cover and valve body assembly of a fourth embodiment of the temperature controlled steam valve of the present invention;

FIG. 9 is a schematic view of the valve cover and valve body assembly of a fifth embodiment of a temperature controlled steam valve of the present invention;

FIG. 10 is a block diagram of another embodiment of a temperature controlled drive assembly;

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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.

In the description of the present invention, greater than, less than, exceeding, etc. are understood as excluding the present numbers, and the above, below, inside, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as setting, mounting, connecting and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention in combination with the specific contents of the technical solutions, for example, the terms "connected" and "contacting" and the like can be understood as fixed connection, contact and the like according to the specific contents of the technical solutions.

The utility model discloses a rice cooker which comprises a rice cooker main body, a top cover and a temperature control steam valve, wherein the top cover is arranged on the rice cooker main body, and the temperature control steam valve is arranged on the top cover.

Referring to fig. 1 to 10, a temperature-controlled steam valve includes a valve body device 10, a valve cover 20 and a temperature-controlled driving assembly 30, wherein a mounting channel 111 is provided on the valve body device 10, the valve cover 20 is inserted into the mounting channel 111, an outer side wall of the valve cover 20 and an inner wall of the mounting channel 111 are arranged at an interval, so that an exhaust channel 112 is provided between an outer side wall of the valve cover 20 and the inner wall of the mounting channel 111, a sealing portion 21 is provided on the valve cover 20, and the sealing portion 21 is located at an outlet side of the exhaust channel 112. The temperature control driving assembly 30 comprises a first liquid storage shell 31 and a deformation piece 32, an expansion opening is formed in the first liquid storage shell 31, the deformation piece 32 is arranged at the expansion opening, the deformation piece 32 is connected with the first liquid storage shell 31 in a sealing mode, one of the first liquid storage shell 31 and the deformation piece 32 is connected with the valve body device 10, and the other of the first liquid storage shell 31 and the deformation piece 32 is connected with the valve cover 20. The first reservoir casing 31 is filled with an expandable liquid such as kerosene, which expands upon absorbing heat from the first reservoir casing 31. That is, the temperature control driving assembly 30 may deform after being heated, thereby pushing the valve cover 20 to displace.

The temperature control steam valve is arranged on the rice cooker, and the food and the water are heated by the heat generated when the rice cooker cooks the food, so that the steam can be generated. In the case where the temperature is low, the amount of steam is small, and the sealing part 21 completely closes the outlet of the exhaust passage 112 by the sealing part 21 being located at the outlet side of the exhaust passage 112, or there is only a small gap between the sealing part 21 and the outlet edge of the exhaust passage 112, so that the steam can be discharged in a small amount. When the temperature is higher, the amount of steam is larger, the generated steam flows to the first liquid storage shell 31, the first liquid storage shell 31 contacts with the high-temperature steam to absorb heat so that the expandable liquid in the first liquid storage shell 31 absorbs heat and expands, the deformation piece 32 is driven to be pressed and expanded to push the valve cover 20 to displace, and a larger exhaust gap is formed between the sealing part 21 and the outlet edge of the exhaust channel 112, so that the steam in the rice cooker can be rapidly and massively exhausted. The higher the temperature, the larger the amount of deformation of the deformation portion, the larger the displacement amount of the valve cover 20, the larger the area of the exhaust gap, and the faster the steam is discharged.

Through the structure, the expandable liquid absorbs heat to expand to drive the deformation piece 32 to deform under pressure, the heat absorption capacity of the expandable liquid is large, the deformation quantity of the expandable liquid is also large, the deformation piece 32 can be driven to generate a larger deformation quantity, the displacement quantity of the valve cover 20 is improved, a large exhaust gap is formed between the sealing part 21 and the outlet edge of the exhaust channel 112, and steam in the rice cooker can be rapidly and massively exhausted. In addition, the outer surfaces of the first liquid storage shell 31 and the deformation piece 32 can absorb heat and conduct the heat to the expandable liquid, and the temperature control driving assembly 30 has a large heat absorption surface, so that the expandable liquid can be rapidly heated and expanded, the temperature control driving assembly 30 can rapidly act when the temperature rises, and the reaction sensitivity of the temperature control steam valve to the temperature rise is improved. Therefore, the heat absorption deformation quantity of the temperature control driving component 30 is improved through the structure, and the temperature control steam valve is sensitive in reaction.

Referring to fig. 1 to 5, in a first embodiment of the temperature-controlled steam valve, in this embodiment, the valve body device 1010 includes a first valve seat 11, a second valve seat 12 and a valve seat shell 13, the first valve seat 11 is provided with the installation channel 111, the second valve seat 12 is inserted into the first valve seat 11, an outer side of the second valve seat 12 is provided with a first clamping groove 161, an inner side of the first valve seat 11 is provided with a first clamping portion 162, and the first clamping portion 162 is clamped in the first clamping groove 161, so that the second valve seat 12 is detachably connected to the first valve seat 11. The bottom of the second valve seat 12 is provided with a guide housing 121, the guide housing 121 extends to the bottom of the valve cover 20, the bottom of the guide housing 121 is open, and the top of the guide housing 121 is provided with an air inlet 122, and the air inlet 122 is communicated with the inlet of the exhaust passage 112. The valve seat shell 13 is sleeved on the first valve seat 11, a first sealing ring 14 is arranged between the bottom of the valve seat shell 13 and the bottom of the first valve seat 11, a sealing groove arranged around the installation channel 111 is formed in the top of the first valve seat 11, a second sealing ring 15 is arranged in the sealing groove, a surrounding portion 131 is arranged at the top of the valve seat shell 13, and the surrounding portion 131 extends into the sealing groove and abuts against the second sealing ring 15. A second engaging portion 172 is provided on the inner side of the valve seat housing 13, a second engaging groove 171 is provided on the outer side of the first valve seat 11, and the second engaging portion 172 is engaged with the second engaging groove 171 to detachably connect the valve seat housing 13 to the first valve seat 11.

The first engaging groove 161 is formed in an L shape, and the second valve seat 12 can be detachably connected to the first valve seat 11 by inserting the first engaging portion 162 into the first engaging groove 161 and then rotating the first valve seat 11. As above, the valve body apparatus 10 is easily disassembled for disassembly and cleaning. In addition, the steam in the rice cooker flows into the guiding shell 121 and flows out through the air inlet 122, the steam flows into the exhaust passage 112 after bypassing the bottom edge of the valve cover 20, the steam can be dispersed through the valve cover 20 and uniformly enters the exhaust passage 112, the bending property of the steam flow path is increased, the breaking of bubbles is facilitated, and the liquid overflowing out of the exhaust passage 112 is reduced.

Further, the first catching groove 161 may be provided on the inner side of the first valve seat 11, and the first catching portion 162 may be provided on the outer side of the second valve seat 12; the second catching groove 171 may be provided on the inner side of the valve seat case 13, and the second catching portion 172 may be provided on the outer side of the first valve seat 11. Of course, the first valve seat 11 may be inserted into the second valve seat 12.

In this embodiment, the valve cap 20 has a mounting cavity 22 opened downward, a first reservoir 31 and a deformable member 32 are located in the mounting cavity 22, the first reservoir 31 is connected to the top of the guide housing 121, and the deformable member 32 is connected to the valve cap 20. Specifically, the top of the mounting cavity 22 is provided with a thrust portion 23, and in order to mount and position the first liquid storage tank 31 and the deformation element 32, the following structure may be adopted: first, the first liquid storage case 31 is fixedly connected to the top of the guide case 121, and the deformable member 32 is in contact with and abutted against the thrust portion 23; secondly, the first liquid storage case 31 is brought into contact with the top of the guide case 121, and the deformable member 32 is fixedly connected to the thrust portion 23.

In addition, in order to mount and position the first liquid storage shell 31 and the deformation member 32, a slot may be provided on the top of the guide shell 121, the first liquid storage shell 31 is inserted into the slot, and the deformation member 32 is in contact with and abuts against the thrust portion 23.

Furthermore, in some embodiments, one of the first reservoir 31 and the deformable member 32 may be connected to the other position of the second valve seat 12 or the first valve seat 11, and the other of the first reservoir 31 and the deformable member 32 may be connected to the valve cover 20.

The installation channel 111 is internally provided with a convex part 113 and a limiting ring 114, the limiting ring 114 and the inner wall of the installation channel 111 are arranged at intervals, the convex part 113 is respectively connected with the inner wall of the installation channel 111 and the limiting ring 114, and the valve cover 20 is arranged on the limiting ring 114 in a penetrating way. The contact matching area of the valve cover 20 and the valve body device 10 can be reduced through the structure, and the moving resistance of the valve cover 20 is reduced; by providing the protrusion 113 to separate the retainer ring 114 from the inner wall of the installation passage 111, when it is necessary to discharge steam, the steam can be smoothly discharged through the space between the retainer ring 114 and the inner wall of the installation passage 111.

When the rice cooker is used, the valve cover 20 may be bounced upward when pushed, and the valve cover 20 may be bounced off the mounting channel 111. To solve this problem, in the present embodiment, the bottom of the valve cap 20 is fixedly provided with the hook 24, and the head of the hook 24 is located below the limiting ring 114. When the valve cap 20 moves upwards, the head of the hook 24 can stop against the limiting ring 114, and the valve cap 20 is limited to be separated from the mounting channel 111. When the valve cover needs to be disassembled for cleaning, the clamping hooks 24 are pulled to swing inwards elastically, and then the valve cover 20 can be moved upwards to be separated from the mounting channel 111.

As described above, in the first embodiment of the thermostatted steam valve, the valve cover 20 is displaced vertically to vent the steam.

Referring to fig. 6, in the second embodiment of the temperature-controlled steam valve, a guide groove 115 is provided in an inner wall of the installation passage 111 to be obliquely arranged, and a guide part is provided in an outer wall of the valve cover 20 to be inserted into the guide groove 115. When the temperature controlled driving assembly 30 is deformed by heat to push the valve cover 20, the guide portion slides along the guide groove 115, so that the valve cover 20 rotates along the mounting channel 111 and moves in the first direction, and a large exhaust gap is formed between the sealing portion 21 and the outlet edge of the exhaust channel 112. Wherein the guide groove 115 is arranged obliquely, i.e. the guide groove 115 is inclined to the first direction.

Of course, the guide groove 115 may be provided on the outer wall of the bonnet 20, and the guide portion may be provided on the inner wall of the mounting passage 111.

As described above, in the second embodiment of the thermostatted steam valve, the valve cover 20 is angularly displaced and vertically displaced to discharge the steam. Further, the installation passage 111 and the first direction are arranged in a horizontal direction such that the valve cover 20 is angularly displaceable and horizontally displaceable to discharge the steam

Referring to fig. 7, in the third embodiment of the temperature controlled steam valve, the mounting channel 111 is vertically arranged, the valve cover 20 is rotatably connected with the first valve seat 11 through a vertically arranged pivot shaft 26, the deformation member 32 is connected with the valve cover 20, and the first liquid storage shell 31 is connected with the first valve seat 11. When the temperature-controlled driving assembly 30 deforms to push the valve cover 20, the valve cover 20 is driven to rotate relative to the valve body assembly 10, i.e., the valve cover 20 rotates transversely around the axis of the pivot 26, so that a large exhaust gap is formed between the sealing portion 21 and the outlet edge of the exhaust passage 112.

In some embodiments, the mounting channel 111 is disposed laterally or obliquely, and correspondingly, the pivot 26 is also disposed laterally or obliquely. In addition, the deformable member 32 may be connected to the first valve seat 11, and the first reservoir 31 may be connected to the valve cover 20.

As described above, in the third embodiment of the thermostatted steam valve, the valve cover 20 is angularly displaced to vent the steam.

Referring to fig. 8, in the fourth embodiment of the thermostatic steam valve, the deformation member 32 is connected to one side of the valve cover 20, the first liquid storage shell 31 is connected to the first valve seat 11, and the deformation direction of the deformation member 32 is set to be transverse, i.e. the expansion port is located at the transverse side of the first liquid storage shell 31, so that the valve cover 20 can be moved transversely when the thermostatic drive assembly 30 pushes the valve cover 20, and a larger exhaust gap is formed between the sealing part 21 and the outlet edge of the exhaust passage 112.

In order to ensure that the valve cap 20 can be normally reset, the deformation element 32 is fixedly connected with one side of the valve cap 20, and the first liquid storage shell 31 is fixedly connected with the first valve seat 11. Or the deformation piece 32 is contacted and abutted with one side of the valve cover 20, the first liquid storage shell 31 is fixedly connected with the first valve seat 11, and an elastic reset piece is arranged between the valve cover 20 and the first valve seat 11.

In some embodiments, the deformable member 32 may be connected to the first valve seat 11, and the first reservoir 31 may be connected to one side of the valve cover 20.

As described above, in the fourth embodiment of the temperature controlled steam valve, the valve cover 20 is horizontally displaced to discharge the steam.

Referring to fig. 9, in the fifth embodiment of the temperature-controlled steam valve, the first liquid storage shell 31 is connected to the first valve seat 11, the deformation element 32 is connected to the bottom of the valve cover 20, and the position connected to the valve cover 20 deviates from the center of the bottom of the valve cover 20, and the deformation direction of the deformation element 32 is set to be vertical, that is, the expansion port is disposed at the top of the first liquid storage shell 31, so that when the temperature-controlled driving assembly 30 pushes the valve cover 20, one side of the valve cover 20 can be tilted, and a larger exhaust gap is formed between the sealing portion 21 and the outlet edge of the exhaust channel 112.

In some embodiments, the deformable member 32 may be connected to the first valve seat 11, the first reservoir 31 may be connected to the bottom of the valve cover 20, and the position where the deformable member 32 is connected to the valve cover 20 is deviated from the center of the bottom of the valve cover 20, and the deformation direction of the deformable member 32 is set to be vertical, that is, an expansion port is disposed at the top or bottom of the first reservoir 31.

As described above, in the fifth embodiment of the thermostatted steam valve, the valve cover 20 is angularly displaced to vent the steam.

Referring to fig. 10, in some embodiments of the present invention, the temperature controlled drive assembly 30 further comprises a second reservoir tank 33, and a conduit 34 is connected between the first reservoir tank 31 and the second reservoir tank 33. The second liquid storage shell 33 is also filled with expandable liquid, the expandable liquid in the second liquid storage shell 33 absorbs heat and expands, so that part of the expandable liquid in the second liquid storage shell 33 overflows into the first liquid storage shell 31, and the expandable liquid in the first liquid storage shell 31 expands, so that the deformation piece 32 has a larger deformation amount, the displacement of the valve cover 20 is larger, and a larger exhaust gap can be formed between the sealing part 21 and the outlet edge of the exhaust channel 112. Therefore, the temperature control driving component 30 can have larger expandable liquid storage capacity through the structure, and the heat absorption deformation quantity of the temperature control driving component 30 is further improved.

During production and assembly, the second liquid storage shell 33 may be mounted on the valve body 1010 or on the top cover of the rice cooker.

In some embodiments of the present invention, the deformation element 32 is configured as a bimetal, which can be deformed under the pressure of the expandable fluid, and which can also be deformed after absorbing heat. In this way, the deformation element 32 has a larger deformation displacement, the deformation of the deformation element 32 is more obvious, and a larger exhaust gap can be formed between the sealing part 21 and the outlet edge of the exhaust passage 112. Thus, the amount of heat-absorbing deformation of the temperature control drive assembly 30 is further increased by the above-described structure.

For example, the bimetal includes an outer ring piece having a ring shape and a sealing piece provided inside the outer ring piece, and the outer ring piece and the sealing piece have different thermal expansion coefficients. Or the bimetallic strip comprises a first elastic strip and a second elastic strip which are overlapped together, and the thermal expansion coefficients of the first elastic strip and the second elastic strip are different.

The outer surface of the deformation piece 32 is coated with an anti-rust layer to prevent the deformation piece 32 from rusting, so that the temperature control steam valve can meet the sanitary requirement. The anti-rust layer can be a rubber layer, an electroplated layer, an oxidized layer, a sprayed layer and the like.

In summary, for the motion manner that the valve cover 20 has vertical movement or one-side tilting under the pushing of the temperature-controlled driving assembly 30, the valve cover 20 can be reset by the gravity of the valve cover 20 itself. For the movement mode that the valve cover 20 moves transversely or rotates, an elastic resetting piece can be arranged, and the elastic force action of the elastic resetting piece is used for driving the valve cover 20 to reset; or the temperature control driving component 30 is fixedly connected with the valve cover 20, and the valve cover 20 can be pulled to reset by the temperature control driving component 30 when the temperature control driving component 30 is cooled and retracted.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A temperature controlled steam valve, comprising:

a valve body device provided with a mounting channel;

the valve cover is inserted into the mounting channel, an exhaust channel is arranged between the outer side wall of the valve cover and the inner wall of the mounting channel, and a sealing part positioned on the outlet side of the exhaust channel is arranged on the valve cover;

temperature control drive assembly, temperature control drive assembly includes first liquid storage shell and deformation, be provided with the inflation mouth on the first liquid storage shell, deformation set up in inflation mouth department, and with first liquid storage shell sealing connection, both one of them meet with the valve body device of first liquid storage shell and deformation, both another of them meet with the valve gap of first liquid storage shell and deformation.

2. The temperature-controlled steam valve as claimed in claim 1,

the valve cover can be vertically displaced and/or angularly displaced and/or horizontally displaced relative to the valve body device.

3. The temperature-controlled steam valve as claimed in claim 2,

the installation channel is vertically arranged, the valve cover is provided with an installation cavity with a downward opening, and the first liquid storage shell and the deformation piece are located in the installation cavity.

4. The temperature-controlled steam valve as claimed in claim 2,

the installation channel is vertically arranged, a convex part and a limiting ring are arranged in the installation channel, the limiting ring and the inner wall of the installation channel are arranged at intervals, the convex part is respectively connected with the inner wall of the installation channel and the limiting ring, and the valve cover is arranged in the limiting ring in a penetrating mode.

5. The temperature-controlled steam valve as claimed in claim 4, wherein a hook is fixedly disposed at the bottom of the valve cover, and the head of the hook is located below the limiting ring.

6. A temperature controlled steam valve according to claim 1 or 2 or 3 or 4 or 5,

the valve body device includes:

a first valve seat provided with the mounting passage;

the second valve seat is detachably connected with the first valve seat, a guide shell is arranged at the bottom of the second valve seat, the guide shell extends upwards to the bottom of the valve cover, the bottom of the guide shell is open, an air inlet is formed in the top of the guide shell, and the air inlet is communicated with the inlet side of the exhaust channel.

7. The temperature-controlled steam valve as claimed in claim 1,

the temperature control driving assembly further comprises a second liquid storage shell, and a pipeline is connected between the first liquid storage shell and the second liquid storage shell.

8. A temperature controlled steam valve according to claim 1 or 2 or 3 or 4 or 5 or 7,

the deformation piece is set to be a bimetallic strip.

9. A temperature controlled steam valve according to claim 1 or 2 or 3 or 4 or 5 or 7,

and the outer surface of the deformation piece is covered with an anti-rust layer.

10. A rice cooker comprising a temperature controlled steam valve as claimed in any one of claims 1 to 9.

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