CN111089170A

CN111089170A - Manual pressurizing container

Info

Publication number: CN111089170A
Application number: CN202010131832.2A
Authority: CN
Inventors: 蒋佳君
Original assignee: Nanjing Magnester Environmental Protection Science And Technology Ltd
Current assignee: Nanjing Magnester Environmental Protection Science And Technology Ltd
Priority date: 2020-02-29
Filing date: 2020-02-29
Publication date: 2020-05-01

Abstract

A manually pressurized pressure container is composed of a pair of cup-shaped can bodies and can covers which can be mutually buckled. The tank body is provided with external screw threads, and the tank cover is provided with internal screw threads. The outer screw thread of the tank body is used as a device for pressurizing the inner screw in the tank cover in a manual rotating mode. Generally, a smaller range of pressurization is suitable for smaller tanks at lower pressures.

Description

Manual pressurizing container

Technical Field

The invention relates to a mechanical pressurization technology, in particular to a manual pressurization container for pressurization by utilizing the design principle of a screw compressor.

Background

Generally, because a pressure vessel requires a high pressure, the pressurization mode is mechanical. Possibly of the piston type, screw type, slide type, centrifuge, etc. However, for a container with low pressure requirement, a simpler screw pressurization mode can be adopted, and manual pressurization is directly carried out.

The thread type of the external threads of the tank body is selected to be trapezoidal threads, the thread type angle is α =30 degrees, the internal threads and the external threads of the trapezoidal threads are tightly attached by conical surfaces and are not easy to loosen, the basic thread type of the self-locking checking calculation condition is specified by GB/T5796.1-2005, the lead angle at the middle diameter of the threads is 1 degree smaller than the equivalent friction angle, the self-locking condition is met, and for an integral nut, in order to ensure that the stress distribution is uniform, the working turns of the threads are not too many, and the lead angle is preferably 1.2-2.5, and the self-locking checking calculation method is 2.

The shell structure of the invention is an internal spiral tank cover made of plastics such as ABS and the like. Therefore, the mold opening technology of internal screw and the injection molding technology of rotary mold release are also needed.

Disclosure of Invention

The invention aims to: the container storage tank is designed according to the low-pressure requirement, the technology of single screw pressurization is utilized, the simplest structure design is adopted, the production cost is reduced, the pressurization is realized in a mode of manually rotating the screw, the operation is easy, and the container storage tank is designed according to the low-pressure requirement.

The invention can be used for storing volatile liquid or articles with pressure to maintain the optimal pressure state. For example, liquids which are generally easy to volatilize, such as perfume and essential oil, only need to be stored in an environment with the atmospheric pressure, so that the volatilization speed can be reduced, and the storage life can be effectively prolonged. For example, the requirement standard of a tennis can for packaging and storing tennis balls only needs 14psi, once the tennis ball is unpacked, the tennis ball can gradually leak no matter whether the tennis ball is used or not, and after two weeks or three weeks, the air pressure is obviously insufficient, so that the normal use is influenced. At this point, tennis balls can be placed in the present invention and pressurized to 14psi for long term storage.

The purpose of the invention is realized as follows:

comprises a pair of cup-shaped can bodies and can covers which can be mutually buckled. The tank body is provided with external screw threads, and the tank cover is provided with internal screw threads. The outer screw thread of the tank body is used as a screw rod to pressurize the inner screw in the tank cover in a manual rotation mode.

Six leaf-shaped protruding wrenches are arranged at the bottom of the tank body and around the top of the tank cover, so that the manual rotation and pressurization are convenient and labor-saving.

The edge of the opening of the tank body is provided with a protruded sealing groove, a tank body sealing ring is arranged in the groove, and the tank body sealing ring can generate an airtight effect when being rotated and pressurized.

The side wall of the top of the tank body is provided with a one-way valve which consists of an air inlet and a valve bolt, the heads at two ends of the valve bolt are in a nail shape, the whole structure is in an I shape, the valve bolt is arranged at one end in the tank, and a valve sealing ring is arranged between the nail-shaped head and the tank cover.

When the pressure tank is pressurized, the valve plug is pushed outwards, the valve sealing ring is compressed to close the valve, and the normal pressurization of the pressure tank can be kept. In case the pressure tank is pressurized and stored for too long, air leakage occurs, air pressure is reduced or normal pressure is recovered, and when the pressure tank is opened, negative pressure can be generated in the tank body instead, so that the pressure tank is difficult to open. At the moment, the valve plug can be automatically jacked open towards the tank due to the pressure difference, so that the pressure inside and outside the tank is balanced to facilitate opening.

The invention has the advantages that: the storage tank has the advantages of simple structural design and cheapest manufacturing cost, is very easy to produce and operate, is not easy to break down, is suitable for storage tanks with lower pressure, and can play the effects of saving and protecting the environment no matter the storage tank is used for storing expensive perfume, essence, tennis balls and the like.

Drawings

FIG. 1 is a schematic diagram of the present invention patent.

Fig. 2 is a cross-sectional view of the check valve.

Wherein, 1 is a tank body, 2 is a tank cover, 3 is an outer screw thread, 4 is an inner screw thread, 5 is a sealing groove, 6 is a tank body sealing ring, 7 is a leaf-shaped protrusion, 8 is a one-way valve, 9 is an air inlet hole, 10 is a valve plug, and 11 is a valve sealing ring.

Detailed Description

The accompanying drawings, which 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 principles of the invention.

As shown in FIG. 1, the structure of the present invention comprises a pair of cup-shaped can body 1 and can lid 2 which can be engaged with each other. The can body 1 is provided with outer screw threads 3, and the can cover is provided with inner screw threads 4. When the tank body 1 and the tank cover 2 are mutually buckled, the external screw thread 3 of the tank body is used as a screw rod to manually rotate and advance on the internal screw thread 4 in the tank cover 2, so that the volume of air in the tank can be reduced, and the aim of pressurization is fulfilled.

For the integral screw thread, in order to ensure that the stress distribution is uniform and the working turns of the screw thread are not too many, the tank body 1 has two outer screw threads 3 and a trapezoidal cross section and meets the self-locking condition.

According to the invention, the edge of the opening of the tank body 1 is provided with the protruded sealing groove 5, the tank body sealing ring 6 is arranged in the groove, and the tank body sealing ring 6 can generate an airtight effect when rotating and pressurizing.

The six leaf-shaped bulges 7 are arranged at the bottom of the can body 1 and the periphery of the top of the can cover 2, so that the function of a wrench can be played, and the anti-skidding and labor-saving effects can be realized when the can is rotated and pressurized by hands.

The invention is provided with a one-way valve 8 on the side wall of the top of the tank cover 2.

As shown in fig. 2, the check valve 8 is composed of an air inlet 9, a valve plug 10 and a valve sealing ring 11, the heads of the two ends of the valve plug 10 are nail-shaped, and the valve sealing ring 11 is arranged between the nail-shaped head of the valve plug 10 at one end in the tank and the tank cover 2. When the pressure is applied, the valve plug 10 moves outwards under the action of the pressure to compress the sealing ring 11, so that the one-way valve 8 is closed, and the airtight pressure in the tank can be kept.

The design function of the one-way valve 8 is that if the pressure tank is stored for too long time under pressure and leaks gas, the pressure in the tank is reduced or normal pressure is recovered, and when the pressure tank is opened, negative pressure is generated in the tank instead, so that the pressure tank is difficult to rotate and open. At this time, the valve plug 10 will be automatically pushed open to the tank due to the pressure difference, so that the pressure inside and outside the tank is balanced and the tank can be easily opened.

In practical application, the object to be pressurized is placed in the can body 1, the can cover 2 is sleeved outside the can body 1, the left hand and the right hand respectively hold the leaf-shaped protrusions 7 at the two ends of the pressure-increasing.

Claims

1. A manually pressurized container characterized by: comprises a pair of cup-shaped tank bodies and tank covers which can be mutually buckled; the tank body is provided with external screw threads, the tank cover is provided with internal screw threads, the edge of the opening of the tank body is provided with a raised sealing groove, a tank body sealing ring is arranged in the groove, the side wall of the top of the tank body is provided with a one-way valve, and the bottom of the tank body and the periphery of the top of the tank cover are provided with leaf-shaped bulges.

2. A manually pressurized container according to claim 1, wherein: the one-way valve consists of an air inlet and a valve bolt, the heads of the two ends of the valve bolt are in a nail shape, and a valve sealing ring is arranged at one end in the tank between the nail-shaped head and the tank cover.