CN211484031U

CN211484031U - Pressure heat preservation cover subassembly and pressure cooker

Info

Publication number: CN211484031U
Application number: CN201922070474.4U
Authority: CN
Inventors: 林灵彪; 康津; 乡志祥; 覃德华; 曾国豪; 钱宗华; 陈俊祺; 王国强; 罗超; 耿卫卫
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-09-15
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a pressure heat preservation lid subassembly, the pressure relief device that rises of installation on heat preservation apron and heat preservation apron, it can dismantle through connection on the heat preservation apron to rise pressure relief device to be convenient for change or wash and rise pressure relief device. The pressure cooker comprises a cooker body and a cooker cover, wherein the cooker cover is covered on the cooker body of the pressure cooker, and the pressure heat-insulation cover assembly is mounted on the cooker cover. The pressure relief device is simple and reliable in design, complex in structure without the traditional pressure cooker pressure relief device, low in production cost, detachable and mountable, convenient to clean and capable of solving the problem of user experience. Meanwhile, the inner pot is in threaded connection with the heat-insulating cover plate, so that the potential safety hazard that the cover body is tripped under the high-pressure condition due to overhigh pressure in the pot can be effectively prevented, and the safety performance is improved.

Description

Pressure heat preservation cover subassembly and pressure cooker

Technical Field

The utility model belongs to the technical field of electrical apparatus, especially, relate to a pressure heat preservation lid subassembly and pressure cooker.

Background

Electric appliances such as electric cookers and pressure cookers are indispensable small household appliances in kitchens, and nowadays, people pay more and more attention to the effect of cooking, so that pressure cookers are increasingly popular with consumers. The pressure cooker has the principle that the steam discharge amount in the cooker is controlled through a pressure control structure, so that the pressure in the cooker is increased, and the effect of boosting is achieved. The pressure cooker on the market at present has the following problems:

(1) most of the pressure control structure is arranged in the upper cover, the structure is complex, the pressure control structure cannot be disassembled, residue is troublesome to clean, and when the pressure valve is broken, the whole heat-insulation cover plate needs to be replaced together, so that the cost is high;

(2) the traditional pressure cooker heat-insulating cover plate is only buckled on the inner cooker, the buckle of the cooker body and the cooker cover has the risk of tripping under the high-pressure condition, and the upper cover is usually arranged to have large weight in order to prevent tripping, so that the problem that the cover is easy to hump back when being opened is solved, and the user experience is reduced;

(3) the pressure cooker is difficult to release pressure, and can be opened after food is cooled, so that a user can wait for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure heat preservation lid subassembly and pressure cooker to solve the problem of background art.

In order to achieve the above object, the utility model discloses a specific technical scheme as follows of pressure heat preservation lid subassembly and pressure cooker:

the utility model provides a pressure heat preservation lid subassembly, but including the last pressure relief device that rises of installing of heat preservation apron and heat preservation apron, it can dismantle through connection on the heat preservation apron to rise pressure relief device to be convenient for change or wash and rise pressure relief device.

Furthermore, the pressure rising and releasing device is communicated with the heat-insulating cover plate through threads.

Furthermore, the pressure rising and relieving device is connected with the heat preservation cover plate in a buckling mode.

Furthermore, the pressure rising and relieving device comprises a pressure valve which is detachably communicated with the heat-insulating cover plate and a pressure cover which is detachably covered on the pressure valve.

Further, a flange is connected to the outer side of the pressure valve, and the flange limits the pressure valve to the outer side of the heat-insulating cover plate.

Further, the flange is an annular flange or a plate flange.

Furthermore, the heat-insulating cover plate is provided with insertion holes, the inner side of the heat-insulating cover plate is provided with a fastening device, and after the pressure valve is inserted into the inner side of the heat-insulating cover plate from the outer side, the fastening device and the flange clamp the pressure valve on the heat-insulating cover plate.

Furthermore, the fastening device comprises an annular part provided with internal threads, and the annular part is in threaded connection with external threads arranged at the lower end of the pressure valve.

Further, the annular member is a ring.

Furthermore, the outer contour of the pressure valve and the inner cavity of the pressure cover both upwards form a step-type cavity structure with gradually reduced volume.

Furthermore, the pressure valve and the pressure cover are in clearance fit, and a gap facilitating air exhaust and pressure relief is formed by clamping the outer contour of the pressure valve and the inner contour of the pressure cover.

A pressure cooker comprises a cooker body of the pressure cooker and a cooker cover covering the cooker body of the pressure cooker, wherein the cooker cover is provided with the pressure heat-preservation cover assembly.

Furthermore, the pot body of the pressure cooker comprises an inner pot, and the outer threads arranged around the upper end of the inner pot are detachably connected with the inner threads of the heat-insulating cover plate through threads.

Furthermore, the heat preservation cover plate and the outer side wall of the inner pot are both connected with handles.

Compared with the prior art, the utility model discloses following beneficial effect has:

the design of the pressure relief device is simple and reliable, the structure without the traditional pressure cooker pressure relief device is complex, the production cost is reduced, the pressure relief device can be detached and installed, the pressure relief device is convenient to clean, the problem of user experience is solved, and when the pressure relief device is damaged, parts can be replaced at any time. Meanwhile, the inner pot and the heat-preservation cover plate are in threaded connection, and the threaded structure belongs to a reliable fastening structure, so that the potential safety hazard that the cover body is tripped under the high-pressure condition due to overhigh pressure in the pot can be effectively prevented, and the safety of the pressure cooker is improved.

Drawings

Fig. 1 is an exploded view of a pressure insulating cover assembly according to the present invention;

FIG. 2 is an assembly view of the pressure insulating cover assembly and the inner pot according to the present invention;

FIG. 3 is an exploded view of the structure of FIG. 2;

FIG. 4 is a full sectional view of FIG. 2;

fig. 5 is an enlarged view of the structure a in fig. 4.

The reference numbers in the figures illustrate: the inner pot 1, the heat preservation cover plate 2 and the pressure rising and releasing device 3; pressure valve 31, pressure cap 32, fastening means 33, flange 34, slit 35.

Detailed Description

For a better understanding of the objects, structure and function of the invention, reference should be made to the drawings, FIGS. 1-5, which are included to illustrate the invention.

The pressure valve 31 on the heat preservation cover plate 2 in the prior art is integrated with the heat preservation cover plate 2, then, covers the pressure cover 32 on the pressure valve 31, and this kind of structural design leads to the pressure valve 31 can not dismantle with the heat preservation cover plate 2, is difficult to wash inside debris, when the pressure valve 31 breaks, needs again to change whole heat preservation cover plate 2 together, consequently, makes following design again.

And the utility model relates to a simple and easy pressure release structure convenient to detach and installation, the convenient back of dismantling is fully washd, like fig. 1, the utility model relates to a pressure heat preservation lid subassembly, including the rising pressure relief device 3 of installation on heat preservation apron 2 and the heat preservation apron 2, rise pressure relief device 3 and can dismantle through connection on heat preservation apron 2 to be convenient for change or wash and rise pressure relief device 3.

The pressure rising and relieving device 3 is in threaded communication with the heat-insulating cover plate 2, namely the pressure rising and relieving device 3 is in threaded connection with the heat-insulating cover plate 2, and meanwhile, a cavity between the pressure rising and relieving device 3 and a container of a lower cover of the heat-insulating cover plate 2 is communicated; or the pressure raising and relieving device 3 is connected with the heat preservation cover plate 2 in a buckling way. The pressure rising and releasing device 3 and the heat insulation cover plate 2 are connected in a threaded mode as an example;

the pressure raising and relieving device 3 comprises a pressure valve 31 which is detachably communicated with the heat preservation cover plate 2, a pressure cover 32 which is detachably covered on the pressure valve 31, and a fastening device 33.

The flange 34 is connected to the outer side of the pressure valve 31, and the flange 34 limits the pressure valve 31 to the outer side of the thermal cover 2, for example, the flange 34 is a ring-shaped flange or a plate-shaped flange, and the flange 34 is larger than the width of the insertion hole of the thermal cover 2, so that the pressure valve 3 is clamped above the thermal cover 2 and cannot pass through the thermal cover 2 and fall to the inner side of the thermal cover 2. Further, a fastening device 33 is provided on the inner side of the thermal cover 2, and after the pressure valve 31 is inserted from the outside to the inside of the insertion hole of the thermal cover 2, the fastening device 33 and the flange 34 clamp the pressure valve 31 to the thermal cover 2.

As shown in fig. 3 and 4, the fastening device 33 includes a ring-shaped member with an internal thread, the ring-shaped member is a circular ring, the circular ring is in threaded connection with an external thread formed at the lower end of the pressure valve 31, and the circular ring screws the pressure valve 31, which is equivalent to the flange 34 and the circular ring clamping the pressure valve 31 on the thermal insulation cover plate 2, thereby fixing the position.

As shown in fig. 5, the outer contour of the pressure valve 31 and the inner cavity of the pressure cover 32 are both formed upward to form a stepped cavity structure with gradually decreasing volume, for example, from bottom to top, a columnar structure with a cavity is formed by through connection. In order to facilitate pressure relief, the pressure valve 31 and the pressure cover 32 are in clearance fit, and a gap 35 for facilitating air exhaust and pressure relief is formed between the outer contour of the pressure valve 31 and the inner contour of the pressure cover 32 in a clamping mode. The lower edge of the pressure cover 32 is lapped on the flange 34 which is integrally formed outside the pressure valve 31, and the volume of the outer contour of the pressure valve 31 is slightly smaller than the volume of the inner cavity of the pressure cover 32, so that a gap 35 for air exhaust and pressure relief can be formed. The upper end of the pressure valve 31 is provided with an air outlet, when the lower end of the pressure cover 32 is abutted against the pressure valve 31, a gap of 0.5-1mm is required to be formed between the upper end of the pressure valve 31 and the top of the inner groove of the pressure cover 32, so that the phenomenon that the air outlet is difficult to be blocked by the pressure cover 32 when the initial opening is too small is prevented. Due to the steps, the air channel is bent, and the high-temperature rushing-out of the gas is prevented.

Like fig. 2-3, will the utility model discloses a pressure heat preservation lid subassembly is used on pressure cooker, for example, a pressure cooker, establish the pot lid on the pot body of pressure cooker with the lid including the pot body of pressure cooker, install foretell pressure heat preservation lid subassembly on the pot lid, the structure simplification of pot lid has been realized, and rise pressure relief device 3, the pot body of pressure cooker includes interior pot 1, the external screw thread that is equipped with around the upper end of interior pot 1 and the 2 internal threads of heat preservation apron can dismantle the connection, it installs on heat preservation apron 2 to rise pressure relief device 3, and heat preservation apron 2 is fixed with interior pot 1 fastening, the event is cooked the completion back, open the rice cooker upper cover, take out interior pot subassembly and carry out the pressure release, can manually mention pressure lid 32 pressure release, also can place interior pot subassembly at the aquatic cooling pressure release, the time of pressure release waiting has greatly been shortened. The design is not limited to pressure cookers, and the pressure heat preservation cover component can be used for high-pressure cookers such as pressure cookers.

Rise pressure relief device 3 and assemble the back, can pass through threaded connection fastening with heat preservation cover plate 2 and interior pot 1, in order to prevent not screwing up and target in place, the design has 2 handles on heat preservation cover plate 2 and interior pot 1 symmetrically, screws up when positioning when heat preservation cover plate 2 on interior pot 1, and the handle just aligns.

When the cooker is used, after food is placed in the inner pot 1, the heat-insulating cover plate 2 is screwed on the inner pot 1, and then the whole inner pot 1, the heat-insulating cover plate 2 and the pressure relief device 3 are placed into the cooker body for cooking. Wherein, because the pressure cover 32 resists the steam to give vent to anger, the internal pressure of the inner pot 1 begins to rise after beginning to work, and the pressure cover 32 also begins to receive the ascending support force of the internal gas, when the pressure reaches a certain value, the pressure cover 32 is properly supported, so that a gap appears between the lower end of the pressure cover 32 and the pressure valve 31, so that the gas can give vent to anger, at this moment, the internal pressure value of the inner pot 1 reaches the maximum value.

If the mass of the pressure cover 32 is m, the gravity is G, the maximum value of the internal pressure of the inner pot 1 is F, the maximum pressure value is p, and the radius value of the slot of the top gap of the pressure cover 32 is R, G-mg-F-p-pi R²Then p is mg/π R²By controlling the mass of the pressure cover 32 and the radius R of the top groove, the maximum value of the pressure of the inner pot 1, i.e. the maximum pressure value of the pressure cooker, can be controlled.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. The utility model provides a pressure heat preservation lid subassembly, but the pressure relief device (3) that rise of pressure that install on heat preservation apron (2) and heat preservation apron (2), its characterized in that: the pressure rising and relieving device (3) is detachably connected to the heat-insulating cover plate (2) in a penetrating way, so that the pressure rising and relieving device (3) is convenient to replace or clean.

2. The pressure insulation cover assembly according to claim 1, characterized in that the pressure raising and relieving device (3) is in threaded communication with the insulation cover plate (2).

3. The pressure insulating cover assembly according to claim 1, characterized in that the pressure raising and relieving device (3) is in snap connection with the insulating cover plate (2).

4. The pressure insulation cover assembly as claimed in claim 2, wherein the pressure raising and relieving device (3) comprises a pressure valve (31) detachably connected to the insulation cover plate (2) and a pressure cover (32) detachably covered on the pressure valve (31).

5. Pressure insulating cover assembly according to claim 4, characterized in that a flange (34) is connected to the outside of the pressure valve (31), the flange (34) limiting the pressure valve (31) to the outside of the insulating cover plate (2).

6. Pressure insulating cover assembly according to claim 5, characterized in that said flange (34) is an annular flange or a plate flange.

7. The pressure insulation cover assembly according to claim 6, characterized in that the insulation cover plate (2) is provided with an insertion hole, the inner side of the insulation cover plate (2) is provided with a fastening device (33), and after the pressure valve (31) is inserted from the outer side to the inner side of the insulation cover plate (2), the fastening device (33) and the flange (34) clamp the pressure valve (31) on the insulation cover plate (2).

8. The pressure insulating cover assembly according to claim 7, wherein the fastening means (33) comprises a ring-shaped member having an internal thread, and the ring-shaped member is screw-coupled to an external thread formed at a lower end of the pressure valve (31).

9. The pressure insulating cover assembly of claim 8, wherein the annular member is a ring.

10. The pressure insulating cover assembly as claimed in claim 4, wherein the outer contour of the pressure valve (31) and the inner cavity of the pressure cover (32) are both formed upwards to form a step-shaped cavity structure with gradually reduced volume.

11. The pressure insulating cover assembly according to claim 10, characterized in that the pressure valve (31) and the pressure cover (32) are in clearance fit, and the outer contour of the pressure valve (31) and the inner contour of the pressure cover (32) are clamped to form a gap (35) for facilitating air exhaust and pressure relief.

12. A pressure cooker, comprising a cooker body of the pressure cooker and a cooker cover covering the cooker body of the pressure cooker, characterized in that the cooker cover is provided with a pressure heat preservation cover component as claimed in any one of claims 1 to 11.

13. The pressure cooker according to claim 12, characterized in that the body of the pressure cooker comprises an inner cooker (1), and the outer thread arranged around the upper end of the inner cooker (1) is in threaded detachable connection with the inner thread of the heat-insulating cover plate (2).

14. The pressure cooker according to claim 12, characterized in that handles are connected to the outer side walls of the heat-insulating cover plate (2) and the inner cooker (1).