CN216692288U

CN216692288U - One-way valve for filling control of liquefied gas

Info

Publication number: CN216692288U
Application number: CN202123398597.4U
Authority: CN
Inventors: 赵智勇; 马健
Original assignee: Shenzhen Anbo Intelligent Controls Technology Co ltd
Current assignee: Shenzhen Anbo Intelligent Controls Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-07
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a one-way valve for controlling filling of liquefied gas, which comprises a valve body, a sealing assembly, a spring assembly and a stop block, wherein the valve body is provided with a valve seat; a cavity is arranged in the valve body, and the spring assembly is arranged in the cavity; one end of the baffle block is arranged in the cavity; one part of the sealing component is arranged in the cavity, and the other part of the sealing component is sleeved on the valve body; one end of the spring assembly is in abutting connection with the stop block, and the other end of the spring assembly is sleeved on the sealing assembly; when gas is filled, the object enters the first through hole to squeeze the sealing gasket, and the compression spring is compressed along with the object, so that a gap is formed between the first through hole and the sealing gasket; so that the gas enters the cavity of the valve body from the second through hole of the stop block and then flows out of the valve body from the first through hole; after the gas filling is finished, the object gives up squeezing the sealing gasket, the compression spring resets, the sealing gasket blocks the first through hole again, and the gas in the cavity cannot flow out of the cavity through the first through hole; simple structure and convenient operation.

Description

One-way valve for filling control of liquefied gas

Technical Field

The utility model relates to the technical field of filling control, in particular to a check valve for liquefied gas filling control.

Background

In recent years, liquefied gas is used as a fuel convenient to use and rapidly enters thousands of households, but the safety of the personal and property of the user can be endangered due to potential safety hazards in the process of filling the liquefied gas; therefore, there is a need for a device capable of better controlling the filling of liquefied gas, and the control valve of the existing liquefied gas filling device is complex in structure and inconvenient to operate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a check valve for liquefied gas filling control.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a check valve for liquefied gas filling control comprises a valve body, a sealing assembly, a spring assembly and a stop block; a cavity is arranged in the valve body, and the spring assembly is arranged in the cavity; one end of the stop block is arranged in the cavity; one part of the sealing assembly is arranged in the cavity, and the other part of the sealing assembly is sleeved on the valve body; one end of the spring assembly is connected with the check block in an abutting mode, and the other end of the spring assembly is sleeved on the sealing assembly.

Preferably, the sealing assembly comprises a sealing gasket and a sealing ring; the sealing gasket is arranged in the cavity, and the sealing ring is sleeved on the valve body.

Preferably, an annular groove is formed in the valve body, and the sealing ring is arranged in the annular groove.

Preferably, one end of the sealing gasket is in a conical shape, a first through hole is formed in the valve body, and the first through hole is communicated with the cavity oppositely; the conical shape is arranged in the first through hole; a plurality of bulges are arranged on the sealing gasket in a surrounding way.

Preferably, a groove is formed in the stop block, and a second through hole is formed in the bottom of the groove; a first step surface is formed at the bottom of the groove and the second through hole.

Preferably, the spring assembly comprises a compression spring, one end of the compression spring is arranged on the first step surface, and the other end of the compression spring is sleeved on the sealing gasket and is limited on one side of the protrusion.

Preferably, a second step surface is arranged on the stop block, and one end of the valve body is arranged on the second step surface.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model designs a check valve for controlling filling of liquefied gas, when gas is filled, a sealing gasket is extruded by an object entering a first through hole, and a compression spring is compressed along with the first through hole, so that a gap is formed between the first through hole and the sealing gasket; so that the gas enters the cavity of the valve body from the second through hole of the stop block and then flows out of the valve body from the first through hole; after the gas filling is finished, the object gives up squeezing the sealing gasket, the compression spring resets, the sealing gasket blocks the first through hole again, and the gas in the cavity cannot flow out of the cavity through the first through hole; simple structure and convenient operation.

Drawings

FIG. 1 is a schematic structural diagram according to the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural diagram of the gasket according to the present invention.

Illustration of the drawings:

1. a valve body 2, a sealing component,

3. a spring component, 4, a stop block,

11. a cavity body 12, an annular groove,

13. a first through-hole, 21, a sealing gasket,

22. a sealing ring 31, a compression spring,

41. the grooves, 42, the second through holes,

43. a first step surface, 44, a second step surface,

211. tapered shape, 212, convex.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, a check valve for liquefied gas filling control includes a valve body 1, a sealing assembly 2, a spring assembly 3, and a stopper 4; a cavity 11 is arranged in the valve body 1, and the spring assembly 3 is arranged in the cavity 11; one end of the baffle block 4 is arranged in the cavity 11; one part of the sealing component 2 is arranged in the cavity 11, and the other part of the sealing component 2 is sleeved on the valve body 1; one end of the spring component 3 is connected with the stop block 4 in an abutting mode, and the other end of the spring component 3 is sleeved on the sealing component 2.

Wherein, the sealing component 2 comprises a sealing gasket 21 and a sealing ring 22; the sealing gasket 21 is arranged in the cavity 11, and the sealing ring 22 is sleeved on the valve body 1; the valve body 1 is provided with an annular groove 12, and a sealing ring 22 is arranged in the annular groove 12.

One end of the sealing gasket 21 is in a conical shape 211, a first through hole 13 is arranged in the valve body 1, and the first through hole 13 is communicated with the cavity 11 oppositely; the tapered shape 211 is disposed in the first through hole 13; a plurality of protrusions 212 are circumferentially arranged on the sealing gasket 21.

The block 4 is provided with a groove 41, and the bottom of the groove 41 is provided with a second through hole 42; a first step surface 43 is formed at the bottom of the second through hole 42 and the groove 41; the stop 4 is provided with a second step surface 44, and one end of the valve body 1 is arranged on the second step surface 44.

The spring assembly 3 includes a compression spring 31, one end of the compression spring 31 is disposed on the first step surface 43, and the other end of the compression spring 31 is sleeved on the sealing pad 21 and is limited on one side of the protrusion 212.

The working principle of the utility model is as follows: when gas is filled, the object enters the first through hole 13 to press the sealing gasket 21, and the compression spring 31 is compressed along with the object, so that a gap is formed between the first through hole 13 and the sealing gasket 21; so that the gas enters the cavity 11 of the valve body 1 from the second through hole 42 of the stopper 4 and then flows out of the valve body 1 from the first through hole 13; after the gas filling is finished, the object abandons to squeeze the sealing gasket 21, the compression spring 31 resets, the sealing gasket 31 blocks the first through hole 13 again, and the gas in the cavity 11 cannot flow out of the cavity 11 through the first through hole 13; simple structure and convenient operation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A check valve for liquefied gas filling control is characterized by comprising a valve body, a sealing assembly, a spring assembly and a stop block; a cavity is arranged in the valve body, and the spring assembly is arranged in the cavity; one end of the stop block is arranged in the cavity; one part of the sealing assembly is arranged in the cavity, and the other part of the sealing assembly is sleeved on the valve body; one end of the spring assembly is connected with the check block in an abutting mode, and the other end of the spring assembly is sleeved on the sealing assembly.

2. A check valve for liquefied gas filling control as claimed in claim 1, wherein the sealing assembly includes a gasket and a sealing ring; the sealing gasket is arranged in the cavity, and the sealing ring is sleeved on the valve body.

3. A check valve for filling control of liquefied gas according to claim 2, wherein an annular groove is provided on the valve body, and the sealing ring is disposed in the annular groove.

4. A check valve for filling control of liquefied gas as claimed in claim 3, wherein one end of the sealing pad is tapered, and a first through hole is formed in the valve body and is communicated with the cavity; the conical shape is arranged in the first through hole; a plurality of bulges are arranged on the sealing gasket in a surrounding way.

5. A check valve for filling control of liquefied gas as claimed in claim 4, wherein the block is provided with a groove, and the bottom of the groove is provided with a second through hole; a first step surface is formed at the bottom of the groove and the second through hole.

6. The check valve for liquefied gas filling control of claim 5, wherein the spring assembly comprises a compression spring, one end of the compression spring is disposed on the first step surface, and the other end of the compression spring is sleeved on the sealing pad and is limited on one side of the protrusion.

7. A check valve for filling control of liquefied gas according to claim 1, wherein a second step surface is provided on the stopper, and one end of the valve body is placed on the second step surface.