CN213551163U

CN213551163U - Pressure limiting valve, exhaust assembly, cover body and cooking utensil of cooking utensil

Info

Publication number: CN213551163U
Application number: CN202020942883.9U
Authority: CN
Inventors: 张懿豪; 瞿义; 徐飞
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-06-29
Anticipated expiration: 2030-05-28

Abstract

The utility model provides a cooking utensil's pressure limiting valve, exhaust subassembly, lid and cooking utensil, wherein, cooking utensil's pressure limiting valve includes: a pressure block having an exhaust passage; a sealing member disposed in the exhaust passage; the pressure adjusting piece is arranged between the pressing block and the sealing piece and used for adjusting the sealing force when the sealing piece is sealed with the exhaust structure of the cooking appliance, and the gravity of the pressing block is greater than the pressure of the cooking appliance which is propped against the pressure limiting valve under the pressure relief condition. Use the technical scheme of the utility model cooking utensil's pressure limiting valve can not standardized problem among the prior art can be solved effectively.

Description

Pressure limiting valve, exhaust assembly, cover body and cooking utensil of cooking utensil

Technical Field

The utility model relates to a small household electrical appliances field particularly, relates to a cooking utensil's voltage limiting valve, exhaust subassembly, lid and cooking utensil.

Background

In order to prevent the pressure from exceeding the upper limit after cooking, the electric pressure cooker in the prior art is provided with a pressure limiting valve for pressure relief and exhaust so as to ensure that the working pressure is in a normal range, thereby ensuring that the cooking can normally work when primary set parameters are set.

With the diversification of functions of the existing electric pressure cooker, different cooking pressures are needed for cooking different food materials, for example, 100KPa is needed for fast cooking, 112KPa is needed for making three cups of chicken, and the like, so that pressure limiting valves with different weights are needed to adapt to different cooking pressure requirements, which leads to various pressure limiting valves, and the unified standardization can not be formed, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a cooking utensil's pressure limiting valve, exhaust subassembly, lid and cooking utensil to solve the problem that cooking utensil's among the prior art pressure limiting valve can not be standardized.

In order to achieve the above object, according to one aspect of the present invention, there is provided a pressure limiting valve of a cooking appliance, comprising: a pressure block having an exhaust passage; a sealing member disposed in the exhaust passage; the pressure adjusting piece is arranged between the pressing block and the sealing piece and used for adjusting the sealing force when the sealing piece is sealed with the exhaust structure of the cooking appliance, and the gravity of the pressing block is greater than the pressure of the cooking appliance which is propped against the pressure limiting valve under the pressure relief condition.

By applying the technical scheme of the embodiment, because the gravity of the pressing block is greater than the pressure of the cooking appliance which props against the pressure limiting valve under the pressure relief condition, in the normal cooking process of the cooking appliance, the pressure limiting valve is static relative to the cooking appliance, the pressure limiting valve blocks the exhaust structure by the sealing element of the pressure limiting valve, and the sealing force of the sealing element and the exhaust structure of the cooking appliance can be adjusted by the pressure adjusting piece. The larger the sealing force is, the more difficult the gas in the cooking appliance is to be discharged, so that the cooking pressure can be increased; the smaller the sealing force is, the easier the gas in the cooking appliance is to be discharged, and the cooking pressure can be adjusted to be low. Above-mentioned structure is through addding pressure regulating part, when cooking utensil need change cooking pressure, needn't change the pressure limiting valve, only needs to change the sealing force size of sealing member through adjusting pressure regulating part, can realize cooking pressure's change, can realize the standardization of pressure limiting valve through this kind of mode to can reduction in production cost.

Further, the pressure regulating part comprises an operating part and an elastic part, wherein the operating part and the elastic part are movably arranged on the pressing block, and the elastic part is clamped between the operating part and the sealing part. The structure is simple, and the sealing force between the sealing piece and the exhaust structure of the cooking utensil is convenient to adjust.

Furthermore, the operating part is a screw, a screw hole is formed in the pressing block, and the elastic part is a spring. The structure enables the adjustment precision of the compression amount of the elastic piece to be more accurate, and therefore more different cooking pressures can be achieved.

Further, the spring is conical spring, and conical spring includes big head end and stub end, and big head end is connected with the sealing member, stub end and screw connection. The sealing effect of the sealing element can be improved by the structure.

Further, the pressing block is provided with a stepped hole, the stepped hole comprises a first hole section and a second hole section with the diameter smaller than that of the first hole section, threads are arranged on the inner wall of the second hole section to form a screw hole, a plurality of exhaust through holes are arranged on the stepped surface of the stepped hole at intervals in the circumferential direction of the second hole section, and an exhaust channel is formed by the first hole section and a channel in the exhaust through holes. In the above structure, the first hole section is used for accommodating the exhaust structure and the sealing member of the cooking appliance. The screw hole of the second hole section is used for being matched and connected with the screw of the operating part. The plurality of exhaust through holes facilitate pressure relief of the cooking appliance, so that cooking pressure quickly reaches a preset value.

Further, the weight of the briquette is between 70g and 120 g. Above-mentioned structure can make the gravity of briquetting be greater than cooking utensil's pressure release pressure, avoids the culinary art pressure in the cooking utensil before reaching the predetermined value, and the pressure limiting valve is backed down in advance, influences cooking utensil's culinary art effect.

According to another aspect of the present invention, there is provided an exhaust assembly, comprising: the exhaust pipe is provided with a supporting structure pressure limiting valve, the pressure limiting valve is supported by the supporting structure, and the exhaust port of the exhaust pipe extends into the exhaust channel of the pressure limiting valve and is in sealing fit with the sealing element of the pressure limiting valve. The exhaust assembly with the pressure limiting valve also has the advantages as the pressure limiting valve has the advantage of being capable of adjusting cooking pressure.

Furthermore, the sealing piece of the pressure limiting valve is a sealing gasket, and the diameter d1 of the sealing gasket is larger than the sum of the diameter d2 of the channel in the exhaust pipe, the thickness t of the exhaust pipe and the distance s between the axis of the exhaust pipe and the channel wall of the exhaust channel. The structure can improve the sealing performance of the sealing element and enable the cooking pressure to reach a preset value.

According to another aspect of the utility model, a lid is provided, include: a cover body; the exhaust assembly is arranged on the cover body. In the above structure, since the exhaust assembly has an advantage of being able to adjust cooking pressure, the cover body having the same also has the advantage.

Further, the lid still includes: the exhaust lever is pivotally arranged on the cover body, one end of the exhaust lever is positioned below the pressure limiting valve of the exhaust assembly, the pressure limiting valve is the pressure limiting valve, and the moving stroke of the first end of the exhaust lever is larger than the height of the elastic piece of the pressure adjusting piece of the pressure limiting valve. Above-mentioned structure makes even if will cook pressure adjustment for the biggest operating pressure for under the compressive capacity of elastic component reached the biggest condition, the removal stroke of the first end of exhaust lever is also enough big, can keep away from the gas vent of blast pipe with the assurance sealing member, makes the pressure limiting valve can exhaust fast.

According to another aspect of the present invention, there is provided a cooking appliance, including: an appliance body; the cover body is arranged on the appliance body. Since the cover has an advantage of being capable of adjusting cooking pressure, the cooking appliance having the same also has the above advantage.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic longitudinal section of an embodiment of a pressure limiting valve of a cooking appliance according to the invention;

FIG. 2 shows an exploded view of a pressure limiting valve of the cooking appliance of FIG. 1;

FIG. 3 shows an exploded view of a pressure regulating member and a seal of the pressure limiting valve of the cooking appliance of FIG. 1;

FIG. 4 shows a top view of a pressure limiting valve of the cooking appliance of FIG. 1;

figure 5 shows a schematic longitudinal cross-sectional view of a seal of an exhaust assembly according to the present invention sealed to an exhaust pipe;

FIG. 6 is a schematic longitudinal sectional view showing the exhaust port of the exhaust pipe opened by the sealing member of the exhaust assembly of FIG. 5; and

fig. 7 shows a schematic longitudinal section of a partial structure of an exemplary embodiment of a cover according to the invention.

Wherein the figures include the following reference numerals:

10. briquetting; 11. an exhaust passage; 12. a stepped hole; 121. a first bore section; 122. a second bore section; 123. an exhaust through hole; 20. a seal member; 30. a pressure regulating member; 31. an operating member; 32. an elastic member; 321. a big head end; 322. a small end; 40. an exhaust pipe; 41. a support structure; 50. a pressure limiting valve; 60. an exhaust lever; 61. a first end.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 and 2, the pressure limiting valve of the cooking appliance of the present embodiment includes: a pressure block 10, a sealing member 20, and a pressure adjusting member 30, wherein the pressure block 10 has an exhaust passage 11; the seal 20 is disposed in the exhaust passage 11; the pressure adjusting member 30 is disposed between the pressing block 10 and the sealing member 20 for adjusting a sealing force when the sealing member 20 is sealed with an exhaust structure of the cooking appliance, and a gravity of the pressing block 10 is greater than a pressure of the cooking appliance against the pressure limiting valve under a pressure relief condition.

By applying the technical scheme of the embodiment, because the gravity of the pressing block 10 is greater than the pressure of the cooking appliance which props against the pressure limiting valve under the pressure relief condition, in the normal cooking process of the cooking appliance, the pressure limiting valve is static relative to the cooking appliance, the pressure limiting valve seals the exhaust structure by the sealing element 20 of the pressure limiting valve, and the pressure adjusting element 30 can adjust the sealing force when the sealing element 20 is sealed with the exhaust structure of the cooking appliance. The larger the sealing force is, the more difficult the gas in the cooking appliance is to be discharged, so that the cooking pressure can be increased; the smaller the sealing force is, the easier the gas in the cooking appliance is to be discharged, and the cooking pressure can be adjusted to be low. Above-mentioned structure is through addding pressure regulating part 30, when cooking utensil need change cooking pressure, needn't change the pressure limiting valve, only needs to change sealing force size of sealing member 20 through regulation pressure regulating part 30, can realize cooking pressure's change, can realize the standardization of pressure limiting valve through this kind of mode to can reduction in production cost.

As shown in fig. 2 and 3, in the present embodiment, the pressure adjusting member 30 includes an operating member 31 movably disposed on the pressing block 10 and an elastic member 32, and the elastic member 32 is interposed between the operating member 31 and the sealing member 20. In the above structure, the movement of the operating member 31 can adjust the elastic force of the elastic member 32. Specifically, when the cooking pressure needs to be increased, the operating part is moved downwards, the compression amount of the elastic part 32 is increased, so that the sealing force between the sealing part 20 and the exhaust structure of the cooking appliance is increased, and the purpose of increasing the cooking pressure in the cooking appliance is achieved; when the cooking pressure needs to be reduced, the operating part is moved upwards, the compression amount of the elastic part 32 is reduced, the sealing force between the sealing part 20 and the exhaust structure of the cooking appliance is reduced, and the purpose of reducing the cooking pressure in the cooking appliance is achieved. The above structure is simple, and it is convenient to adjust the sealing force between the sealing member 20 and the exhaust structure of the cooking appliance.

As shown in fig. 3 and 4, in the present embodiment, the operation element 31 is a screw, the pressing block 10 is provided with a screw hole, and the elastic member 32 is a spring. The above structure sets the operating member 31 as a screw, and by screwing the screw, the operating member 31 can be moved up and down with respect to the pressing block 10 to adjust the amount of compression of the spring 32. The structure is simple, convenient to adjust and low in cost. It should be noted that the above structure makes the adjustment precision of the compression amount of the spring 32 more accurate, thereby enabling more different cooking pressures.

As shown in fig. 2, in the embodiment, the spring is a conical spring, the conical spring includes a large head end 321 and a small head end 322, the large head end 321 is connected to the sealing member 20, and the small head end 322 is connected to the screw. Specifically, the small head end 322 of the spring is welded with the screw, and the structure can reduce the welding area of the spring and the screw, so that the processing efficiency is improved. In addition, the big end 321 of the spring is fixedly connected with the sealing member 20, which can provide uniform elastic force to the sealing member 20, so that the sealing force of the sealing member 20 to the exhaust structure of the cooking appliance is uniformly distributed, and the above structure can improve the sealing effect of the sealing member 20.

As shown in fig. 2 and 4, in the present embodiment, a stepped hole 12 is provided in the pressing block 10, the stepped hole 12 includes a first hole section 121 and a second hole section 122 having a smaller diameter than the first hole section 121, a thread is provided on an inner wall of the second hole section 122 to form a screw hole, a plurality of exhaust through holes 123 are provided on a stepped surface of the stepped hole 12 at intervals in a circumferential direction of the second hole section 122, and the first hole section 121 and a passage in the exhaust through holes 123 form the exhaust passage 11. In the above structure, the first hole section 121 is used for accommodating the exhaust structure of the cooking utensil and the sealing member 20. The screw hole of the second hole section 122 is used for matching connection with the screw of the operation member 31. The plurality of exhaust through holes 123 facilitate the pressure relief of the cooking appliance, so that the cooking pressure quickly reaches a predetermined value.

In the present embodiment, the weight of the briquette 10 is between 70g and 120 g. Above-mentioned structure can make the gravity of briquetting 10 be greater than cooking utensil's pressure release pressure, avoids the cooking pressure in the cooking utensil before reaching the predetermined value, and the pressure limiting valve is backed up in advance, influences cooking utensil's culinary art effect. Preferably, the weight of the briquette 10 is 110 g.

As shown in fig. 5 and 6, the present application further provides an exhaust assembly, an embodiment of an exhaust assembly according to the present application comprising: an exhaust tube 40 and a pressure limiting valve 50, wherein the exhaust tube 40 has a support structure 41. The pressure limiting valve 50 is the pressure limiting valve described above. The pressure-limiting valve 50 is supported by the support structure 41, and the exhaust port of the exhaust pipe 40 extends into the exhaust passage 11 of the pressure-limiting valve and is in sealing fit with the sealing member 20 of the pressure-limiting valve. The exhaust assembly with the pressure limiting valve also has the advantages as the pressure limiting valve has the advantage of being capable of adjusting cooking pressure.

In use, the sealing member 20 may be displaced in a horizontal plane during pressure adjustment, so that the sealing member 20 is deviated from its original position and cannot completely block the exhaust port of the exhaust pipe 40, resulting in poor sealing performance and failure to reach a predetermined cooking pressure. To solve the above problem, as shown in fig. 3 and 6, in the present embodiment, the seal member 20 of the pressure limiting valve 50 is a seal gasket having a diameter d1 larger than the sum of the diameter d2 of the passage in the exhaust pipe 40, the thickness t of the exhaust pipe 40, and the distance s between the axis of the exhaust pipe 40 and the passage wall of the exhaust passage 11. In the above configuration, even if one end of the sealing member 20 is displaced to a position abutting against the channel wall of the exhaust channel 11, the sealing member 20 can completely cover the exhaust hole of the exhaust pipe 40, and the sealing property can be ensured. The above structure can improve the sealability of the sealing member 20 to make the cooking pressure reach a predetermined value.

The present application also provides a cover, an embodiment of a cover (not shown in the figures) according to the present application comprising: the cover comprises a cover body and an exhaust assembly, wherein the exhaust assembly is arranged on the cover body and is the exhaust assembly. In the above structure, since the exhaust assembly has an advantage of being able to adjust cooking pressure, the cover body having the same also has the advantage.

As shown in fig. 7, in the present embodiment, the cover further includes: the exhaust lever 60 is pivotally arranged on the cover body, one end of the exhaust lever 60 is positioned below the pressure limiting valve 50 of the exhaust assembly, and the moving stroke of the first end 61 of the exhaust lever 60 is larger than the height of the elastic element 32 of the pressure adjusting element 30 of the pressure limiting valve 50. The above structure makes the moving stroke of the first end 61 of the exhaust lever 60 large enough to ensure that the sealing member 20 can be far away from the exhaust port of the exhaust pipe 40, enabling the pressure limiting valve 50 to exhaust rapidly, even if the cooking pressure is adjusted to the maximum working pressure, so that the compression amount of the elastic member 32 is maximized.

The present application also provides a cooking appliance, an embodiment of a cooking appliance (not shown in the figures) according to the present application comprises: the cover body is arranged on the appliance body and is the cover body. Since the cover has an advantage of being capable of adjusting cooking pressure, the cooking appliance having the same also has the above advantage.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure limiting valve for a cooking appliance, comprising:

a pressure block (10) having an exhaust passage (11);

a seal (20) disposed within the exhaust passage (11);

the pressure adjusting piece (30) is arranged between the pressing block (10) and the sealing piece (20) and used for adjusting the sealing force when the sealing piece (20) is sealed with the exhaust structure of the cooking appliance, and the gravity of the pressing block (10) is larger than the pressure of the cooking appliance which is propped against the pressure limiting valve under the pressure relief condition.

2. Pressure limiting valve according to claim 1, characterized in that the pressure regulating member (30) comprises an operating member (31) movably arranged on the pressure piece (10) and an elastic member (32), the elastic member (32) being interposed between the operating member (31) and the sealing member (20).

3. Pressure limiting valve according to claim 2, characterized in that the operating element (31) is a screw, the pressure piece (10) is provided with a screw hole, and the resilient element (32) is a spring.

4. The pressure limiting valve of claim 3 wherein the spring is a conical spring comprising a large head end (321) and a small head end (322), the large head end (321) being connected with the seal (20) and the small head end (322) being connected with the screw.

5. The pressure limiting valve according to claim 3, wherein the pressure block (10) is provided with a stepped hole (12), the stepped hole (12) comprises a first hole section (121) and a second hole section (122) having a smaller diameter than the first hole section (121), the inner wall of the second hole section (122) is provided with a thread to form the screw hole, the stepped surface of the stepped hole (12) is provided with a plurality of exhaust through holes (123) arranged at intervals in the circumferential direction of the second hole section (122), and the first hole section (121) and a passage in the exhaust through holes (123) form the exhaust passage (11).

6. Pressure limiting valve according to claim 1, characterized in that the weight of the pressure piece (10) is between 70g and 120 g.

7. An exhaust assembly comprising:

an exhaust pipe (40) having a support structure (41);

pressure limiting valve (50), characterized in that the pressure limiting valve (50) is according to any one of claims 1 to 6, the pressure limiting valve (50) being supported by the support structure (41), the exhaust opening of the exhaust pipe (40) extending into the exhaust channel (11) of the pressure limiting valve and being in sealing engagement with the sealing element (20) of the pressure limiting valve.

8. Exhaust assembly according to claim 7, characterized in that the seal (20) of the pressure limiting valve is a sealing gasket having a diameter d1 which is greater than the sum of the diameter d2 of the channel in the exhaust pipe (40), the thickness t of the exhaust pipe (40) and the distance s between the axis of the exhaust pipe (40) and the wall of the channel of the exhaust channel (11).

9. A cover, comprising:

a cover body;

a vent assembly disposed on the cover body, wherein the vent assembly is the vent assembly of claim 7 or 8.

10. The cover of claim 9, wherein the cover comprises:

the exhaust lever (60) is pivotally arranged on the cover body, one end of the exhaust lever (60) is positioned below the pressure limiting valve (50) of the exhaust assembly, the pressure limiting valve (50) is the pressure limiting valve in claim 2, and the moving stroke of the first end (61) of the exhaust lever (60) is larger than the height of the elastic piece (32) of the pressure regulating piece (30) of the pressure limiting valve (50).

11. A cooking appliance comprising:

an appliance body;

a cover provided on the tool body, characterized in that the cover is the cover according to claim 9 or 10.