CN109846348B

CN109846348B - Pressure cooker

Info

Publication number: CN109846348B
Application number: CN201910140468.3A
Authority: CN
Inventors: 刘芳华
Original assignee: Jiangxi Normal University
Current assignee: Jiangxi Normal University
Priority date: 2019-02-23
Filing date: 2019-02-23
Publication date: 2023-01-03
Anticipated expiration: 2039-02-23
Also published as: CN109846348A

Abstract

The invention relates to a pressure relief structure of a pressure cooker, which solves the problem that in the pressure relief process of the traditional pressure cooker, external bacteria easily enter the cooker to cause food deterioration, and comprises a cooker body and a cooker cover which is detachably arranged on the cooker body, and further comprises a fixed cover, an elastic telescopic rod and a pressure relief assembly arranged on the cooker cover, wherein the pressure relief assembly comprises a pressure relief hole which penetrates through the inside and the outside of the cooker cover and a pressure relief plug which can be butted with or separated from the pressure relief hole; the pressure relief structure on the pressure cooker is improved, so that external bacteria are prevented from being mixed into the pressure cooker after pressure relief, and food is prevented from going bad; still possess the adjustable function of pressure, be applicable to different types of food culinary art, improved culinary art effect and convenience in use greatly.

Description

Pressure cooker

Technical Field

The present invention relates to the technology of sealing and pressure relief of pressure cooker.

Background

The pressure cooker is also called pressure cooker and pressure cooker, and is a cooker in kitchen. The pressure cooker applies pressure to water by the physical phenomenon that the boiling point of liquid can be increased under higher air pressure, so that the water can reach higher temperature without boiling, and the efficiency of stewing food is accelerated. The utility model can heat the cooked food to more than 100 ℃, and in high altitude areas, the pressure cooker can avoid the problem that the food is not easy to cook because the boiling point of water is reduced.

However, the conventional pressure relief valve for pressure cookers is easy to cause bacteria to enter the pressure cooker after pressure relief, which causes food deterioration, and therefore, a pressure cooker is provided for cooking different kinds of food.

Disclosure of Invention

The invention aims to solve the technical problem in the background art and provides a pressure cooker.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a pressure cooker, includes the pot body and can dismantle the pot cover that sets up on the pot body, still includes fixed lid, elastic telescopic rod and sets up the pressure release subassembly on the pot cover, the pressure release subassembly is including running through the inside and outside pressure release hole of pot cover and can conflict or break away from the pressure release stopper of contradicting with this pressure release hole, fixed lid is connected with the pot cover and covers the top in the pressure release hole, the upper end of pressure release stopper links to each other with elastic telescopic rod's lower extreme, elastic telescopic rod's upper end is fixed and is covered fixedly, the pot cover surface still is equipped with the inside and outside water drainage tank of the fixed lid of intercommunication.

Preferably, the pressure relief opening in the lid is configured as a gooseneck channel having at least one curved lower end which ensures a liquid seal.

Preferably, the gooseneck tunnel is provided with a cold plate at the curved lower end therein.

Preferably, the condensation plate is formed by assembling cross-shaped condensation blocks made of aluminum or copper materials.

Preferably, the drainage groove has an inclined bottom, and one end of the bottom of the drainage groove, which is close to the pressure relief hole, is higher than the other end of the bottom of the drainage groove, which is far away from the pressure relief hole.

Preferably, the elastic telescopic rod comprises an adjusting bolt, a telescopic pipe and a spring arranged in the telescopic pipe, a threaded hole penetrating through the telescopic pipe is formed between the fixed cover and the spring, a through hole communicating the threaded hole with the outside is correspondingly formed in the fixed cover, the adjusting bolt penetrates through the through hole and is in threaded connection with the threaded hole, and the length of the adjusting bolt is enough to compress the spring in the screwing process.

Preferably, the pressure relief plug is a soft plug resistant to high-pressure steam temperature.

Compared with the prior art, the invention has the following beneficial effects:

the pressure relief structure on the pressure cooker is improved, so that external bacteria are prevented from being mixed into the cooker after pressure relief, and food is prevented from going bad; the pressure cooker also has the pressure adjustable function, is suitable for cooking different kinds of food, and greatly improves the cooking effect and the use convenience.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a lid cutting view;

FIG. 3 is a schematic view of a pressure relief assembly;

FIG. 4 is a schematic view of a gooseneck configuration;

FIG. 5 is a schematic view of the structure of the elastic telescopic rod;

fig. 6 is a schematic diagram of a condenser plate structure.

The reference numerals in the specification are as follows:

1. pot body

2. Pot cover

3. Handle bar

4. Fixing cover

4-1 through hole

5. Elastic telescopic rod

5-1 adjusting bolt

5-2 telescopic pipe

5-3 spring

5-4 screw hole

6. Pressure relief assembly

6-1 pressure relief hole

6-2 pressure relief plug

7. Gooseneck channel (gooseneck)

7-1 curved lower end

7-2 sealing liquid

8. Condensing plate

8-1 condensation block

9. Drainage channel

9-1 drain tank bottom

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3 together, the present invention provides a pressure cooker, which comprises a cooker body 1 and a cooker cover 2 detachably disposed on the cooker body 1, wherein the detachable manner in this embodiment is exemplified by a conventional screw-fastening structure, the cooker body 1 and the cooker cover 2 are further provided with handles 3 capable of being separated or combined in a rotating manner, and further comprise a fixing cover 4, an elastic expansion link 5 and a pressure relief assembly 6 disposed on the cooker cover 2; the surface of the pot cover 2 is also provided with a drainage groove 9 communicated with the inside and the outside of the fixed cover 4;

the fixed cover 4 is connected with the cooker cover 2 and covers the pressure relief hole 6-1, the function of the fixed cover 4 is to provide a reaction force when the pressure in the cooker rises to enable the pressure relief plug 6-2 to be separated from the pressure relief hole 6-1 so that the elastic expansion rod 5 is compressed, therefore, in the embodiment, the fixed cover 4 is designed into a round table shape with a sealed top to ensure better stability, and can be changed into a rod-shaped, plate-shaped or other-shaped cover fixedly connected with the cooker cover 2 in actual production.

Because different types of food cooking have different requirements on the pressure inside the pressure cooker, in order to realize the pressure adjustable function, the elastic telescopic rod 5 comprises an adjusting bolt 5-1, a telescopic pipe 5-2 and a spring 5-3 arranged in the telescopic pipe 5-2, the telescopic pipe 5-2 is provided with a through threaded hole 5-4 between a fixed cover 4 and the spring 5-3, the fixed cover 4 is correspondingly provided with a through hole 4-1 for communicating the threaded hole 5-4 with the outside, the adjusting bolt 5-1 passes through the through hole 4-1 to be in threaded connection with the threaded hole 5-4, the length of the adjusting bolt 5-1 is enough to compress the spring 5-4 in the screwing-in process, when in use, the adjusting bolt 5-1 is screwed in or out to adjust the compression amount of the spring 5-3 arranged in the telescopic pipe 5-2, so that the acting force on a pressure release valve 6-2 connected to the lower end of the telescopic pipe 5-2 is different, and further, when the pressure inside the pressure of the pressure cooker 6-2 is different when the pressure release collision hole 6-1 is separated, the pressure inside the pressure cooker can be controlled, and the pressure inside the pressure cooker can be controlled by adopting a sleeve type telescopic pipe or other telescopic pipe structure, and the like, and the elastic telescopic rod can also be replaced by other elastic telescopic rod 5 or other similar telescopic structure.

The pressure relief assembly 6 comprises a pressure relief hole 6-1 penetrating through the inside and the outside of the pot cover 2 and a pressure relief plug 6-2 capable of colliding with or breaking away from the pressure relief hole 6-1, the upper end of the pressure relief plug 6-2 is connected with the lower end of the elastic telescopic rod 5, the upper end of the elastic telescopic rod 5 is fixed on the fixed cover 4, a drainage groove 2-1 communicating the inside and the outside of the fixed cover 4 is further formed in the surface of the pot cover 2, in practical application, the pressure relief plug 6-2 is a cork with high-pressure steam temperature resistance, the design has the advantage that the cork can provide good contact with the pressure relief hole 6-1 to ensure tightness in a collision state, and materials with high-pressure steam temperature resistance, such as cork and rubber plugs, are difficult to age and prolong the service life compared with a traditional sealing ring.

In order to solve the problem that external bacteria enter the pot after the pressure relief plug 6-2 collides with or breaks away from the pressure relief hole 6-1, the preferred internal structure of the pressure relief hole 6-1 is that the structure of the pressure relief hole 6-1 in the pot cover 2 is designed into a gooseneck channel (hereinafter referred to as a gooseneck 7 for short), and the gooseneck 7 at least has a bent lower end 7-1 capable of ensuring liquid seal, so that the advantage is that high-pressure steam passing through the gooseneck 7 can be condensed and gathered at the bent lower end 7-1 to form sealing liquid 7-2 capable of isolating the external bacteria, in practical application, when the air pressure in the pressure pot is the same, the actual effect can be influenced by the pipe diameter of the gooseneck 7, the pressure intensity is increased when the high-pressure steam enters the gooseneck 7 due to too thin pipe diameter, and more sealing liquid 7-2 at the bent lower end 7-1 can be discharged, so that the isolation effect cannot last for a long time; the too thick pipe diameter can be difficult to reach the liquid seal position because the condensate liquid gathers the limited volume, influences isolated effect equally, consequently considers above-mentioned problem, should set up gooseneck 7 to suitable pipe diameter in the actual production in order to reach more excellent liquid seal effect.

As a preference for condensing the liquid accumulation in the gooseneck 7 by the high-pressure steam, a condensation plate 8 is provided at the lower end of the bend inside the gooseneck 7.

In order to solve the problem that the condenser plate is inconvenient to install in the gooseneck 7, the cross section of the condenser plate 8 made of aluminum or copper materials is formed by assembling cross cold-coagulation blocks 8-1, the cross section of the cold-coagulation blocks 8-1 is designed to be cross, the heat conduction efficiency is high, the condensation effect is better, the cross section of the cold-coagulation blocks 8-1 can be increased in contact area with hot steam in the gooseneck 7, and the condensation effect is enhanced.

In order to improve the drainage effect of the pot cover, the drainage groove 9 is provided with an inclined bottom 9-1, and one end a of the bottom of the drainage groove 9, which is close to the pressure relief hole 6-1, is higher than the other end b, which is far away from the pressure relief hole 6-1.

The pressure relief structure on the pressure cooker is improved, so that external bacteria are prevented from being mixed into the pressure cooker after pressure relief, and food is prevented from going bad; the pressure cooker also has the pressure adjustable function, is suitable for cooking different kinds of food, and greatly improves the cooking effect and the use convenience.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pressure cooker, includes the pot body and can dismantle the pot cover of setting on the pot body, its characterized in that: the cooker cover further comprises a fixing cover, an elastic telescopic rod and a pressure relief assembly arranged on the cooker cover, wherein the pressure relief assembly comprises pressure relief holes penetrating through the inside and the outside of the cooker cover and a pressure relief plug capable of abutting against or disengaging from the pressure relief holes; the pressure relief hole is arranged in the cooker cover and is constructed into a gooseneck-shaped channel, and the gooseneck-shaped channel is at least provided with a bent lower end capable of ensuring liquid seal; a condenser plate is arranged at the lower bent end in the gooseneck-shaped channel; the condensation plate is formed by assembling cross-shaped cold congelation blocks made of aluminum or copper materials; the drainage groove is provided with an inclined bottom, and one end, close to the pressure relief hole, of the bottom of the drainage groove is higher than the other end, far away from the pressure relief hole, of the bottom of the drainage groove; the elastic telescopic rod comprises an adjusting bolt, a telescopic pipe and a spring arranged in the telescopic pipe, wherein the telescopic pipe is provided with a through threaded hole between a fixed cover and the spring, the fixed cover is correspondingly provided with a through hole for communicating the threaded hole with the outside, the adjusting bolt penetrates through the through hole and is in threaded connection with the threaded hole, and the length of the adjusting bolt is enough to compress the spring in the screwing process.