CN112190127A

CN112190127A - Pressure adjustable pressure cooker

Info

Publication number: CN112190127A
Application number: CN202010942941.2A
Authority: CN
Inventors: 芦雷
Original assignee: Ningbo Runqiao Industrial Design Co ltd
Current assignee: Ningbo Runqiao Industrial Design Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-01-08

Abstract

The invention aims to overcome the defects in the prior art and provides a pressure limiting device which can conveniently adjust pressure, namely a pressure cooker adopting the pressure limiting device. The technical scheme of the invention is as follows: a pressure-adjustable pressure cooker is composed of pressure-limiting valve consisting of pressure-limiting valve and air-exhausting bolt with screw thread for fastening the pressure-limiting valve to cover, valve core consisting of weight, spring and valve plug, and pressure-limiting valve whose valve cavity is composed of screw cavity, barrel cavity and trapezoidal cavity and is controlled by weight and valve plug.

Description

Pressure adjustable pressure cooker

Technical Field

The invention relates to the technical field of household appliances, in particular to a pressure cooker and a pressure limiting device thereof.

Background

The pressure cooker is also called as a pressure cooker, has the advantages that the curing effect which can be achieved by a common cooker only in a long time can be achieved in a short time, not only saves time and energy, but also is used for solving the problem of rice cooking and half-cooked in high altitude areas. However, the pressure cooker has an inevitable disadvantage that the taste is not as good as that of the pressure cooker which is slowly stewed by using a common cooker. As is well known, in an oven, for cooking meat or cooked wheaten food, temperatures for different kinds of food materials are different, and for cooking the same kind of food material, temperatures for the same kind of food material are different, and temperatures for front and rear sections of the same kind of food material are also different. The pressure cooker is the same for all food materials, all cooking temperatures and all pressures. This is a technical drawback that pressure cookers have been, but have been overlooked. In the past, those skilled in the relevant art have been studying how to increase the pressure and how to make the high-altitude area boil water and cook rice, and have never thought how to make the pressure variable as needed.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a pressure limiting device capable of conveniently and bidirectionally adjusting pressure and a pressure cooker adopting the pressure limiting device. The technical scheme of the invention is as follows: a pressure-limiting device of a pressure-adjustable pressure cooker comprises a pressure-limiting valve and an exhaust bolt, wherein the exhaust bolt is provided with threads to enable the pressure-limiting valve to be tightly connected with a cooker cover, a valve core of the pressure-limiting valve comprises a heavy hammer, a spring and a valve plug, a valve cavity of the pressure-limiting valve is formed by connecting a threaded cavity, a barrel cavity and a ladder-shaped cavity in series, pressure scales are arranged on the valve plug, threads matched with the threads of the threaded cavity are arranged on the side wall of the valve plug, the pressure in the cooker of the pressure cooker is jointly controlled by the gravity of the heavy hammer and the elastic force generated by compressing the spring by screwing the valve plug, the elastic force is variable pressure and mainly bears the additional pressure above the atmospheric pressure at the altitude, and the rotating angle of the valve plug is adjusted to obtain any pressure from the current atmospheric pressure to the.

Compared with the prior art, the technical scheme provided by the invention has the advantages that the pressure cooker can save time and the like, the pressure of the pressure cooker can be adjusted according to needs, the technical effect of better taste is achieved, and the pressure cooker can be used as a common cooker, so that the technical effect of saving expenses and space is achieved.

Drawings

FIG. 1 is a diagram showing an appearance effect of example 1 of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an exploded, assembled view of FIG. 1;

FIG. 4 is a block diagram of the valve body of FIG. 2;

FIG. 5 is a sectional view of example 2 of the present invention;

FIG. 6 is an exploded view and an assembled view of embodiment 2;

FIG. 7 is a perspective view of the weight of FIG. 6.

Wherein: 1 case, 1.1 is the weight, 1.2 valve plugs, 1.3 is the spring, 2 is the valve body, 2.1 is the valve pocket, 2.11 is the thread cavity, 2.12 is the bucket die cavity, 2.13 is the ladder-shaped chamber, 2.2 is the core interface of venting bolt, 2.3 is the passageway of losing air, 2.4 level scale indication arrow, 3 is the venting bolt.

The invention is further described below with reference to the figures and examples.

Example 1

Referring to the attached drawings 1-4, this embodiment is an example of improving a pressure limiting device of a pressure cooker, the original pressure limiting valve has a weight of 80 g and a diameter of an exhaust port of 4 mm, the embodiment first uses an exhaust bolt 3 with the same diameter and provided with threads at the upper part and capable of being tightly butted with the pressure limiting valve to replace the original exhaust rod, so that the pressure limiting valve can be tightly fastened on a cooker cover, the pressure limiting valve comprises a valve core 1 and a valve body 2, the valve core 1 consists of a heavy hammer 1.1, a valve plug 1.2 and a spring 1.3, the valve body 2 is provided with a valve cavity 2.1, an exhaust bolt interface 2.2 and an air escape hole 2.3, the valve cavity 2.1 is formed by connecting a threaded cavity 2.11, a barrel-shaped cavity 2.12 and a ladder-shaped cavity 2.13 which are overlapped with each other along an axis in series, the bottom of the heavy hammer 1.1 is a cone which can be tightly matched with the ladder-shaped cavity 2.13, a limiting column is arranged at the top part, and the spring 1.3 is required to provide the maximum pressure of 0.64N, in view of convenient adjustment and display, a pressure scale corresponding to 0-0.64N is arranged on the valve plug 1.2, in order to ensure that the 0-0.64N elastic force can be sufficiently and non-overlapped displayed on the valve plug 1.2, the diameter of the side wall thread of the valve plug and the thread of the thread cavity 2.11 matched with the side wall thread of the valve plug are selected to be 22mm, the corresponding thread pitch is 2.5mm, the spring 1.3 is made of stainless steel, the effective number of turns is 5, the thread diameter is 0.6mm, the central diameter is 4.5mm, and the length is 6.6mm, according to the parameter setting, when the valve plug 1.2 rotates for a circle, namely the screwing distance is 2.5mm, the spring 1.3 can generate the pressure of about 0.64N on the counter weight 1.1, namely the function of the pressure limiting valve can be equivalent to that the original pressure in a cooker reaches 163kPa, the scale indication arrow 2.4 is arranged at the upper end of the valve body 2, and when the valve plug rotates from the initial position to a certain arrow, the force of the spring 1.3, which is screwed in, plus the weight force of the weight 1.1, is equal to the maximum limit pressure that can be reached by the pressure cooker, so that the scale on the valve plug 1.2 is preferably 15-80 grams or the corresponding weight force, corresponding to the pressure that increases above atmospheric pressure in the cooker. According to the above description, it can be seen that the present embodiment can conveniently adjust the pressure in two directions according to the actual needs, and has the beneficial technical effects that the pressure cooker can save time and energy and make dishes with better taste.

Example 2

Referring to fig. 5-7, the difference between this embodiment and embodiment 1 is mainly that the weight 1.1 is large, and the mass reaches 65 g, so that when the valve plug 1.2 rotates one turn, i.e. screws in 2.5mm, the sum of the pressure generated by the spring 1.3 and the weight of the weight 1.1 reaches 1.27N, which can be suitable for the area with an altitude of 5000 m. The rest of the parts which are not related are the same as those in the embodiment 1, and the description is omitted.

It should be noted that all the equivalent transformation, or different expressions with the same essential meaning, which are directly or indirectly applied to other related technical fields, made by using the contents of the present specification and the attached drawings, are within the protection scope of the present invention.

Claims

1. The pressure-limiting device of the pressure-adjustable pressure cooker consists of a pressure-limiting valve and an exhaust bolt, and is characterized in that: the exhaust bolt is provided with threads to enable the pressure limiting valve to be tightly connected with the cooker cover, a valve core of the pressure limiting valve is composed of a heavy hammer, a spring and a valve plug, a valve cavity of the pressure limiting valve is formed by connecting a thread cavity, a barrel cavity and a trapezoid cavity in series, the valve plug is provided with pressure scales, the side wall of the valve plug is provided with threads matched with the threads of the thread cavity, the domestic pressure of the pressure cooker is jointly controlled by the gravity of the heavy hammer and the elastic force generated by compressing the spring by screwing the valve plug, wherein the elastic force is variable pressure and mainly bears the additional pressure above the atmospheric pressure of the altitude where the pressure exists, the rotating angle of the valve plug is adjusted, and any pressure from the current atmospheric pressure to the set standard high pressure can be.