CN213361210U - Short built-in hydraulic one-way valve - Google Patents

Abstract

The utility model discloses a built-in hydraulic pressure check valve of short type, including upper bracket and lower carriage, the equal injection moulding of upper bracket and lower carriage, the inside of lower carriage is hollow out construction, installs the valve in the inner chamber of lower carriage, and the valve passes through the spring to be fixed on the valve rod of lower carriage inner chamber, and the spring cup joints in the outside of valve rod, and upper bracket and lower carriage pass through buckle fixed connection, and the junction outside of upper bracket and lower carriage is provided with sealing washer an, and the outside of valve is provided with sealing washer b, and the top of valve rod is provided with sealing washer c. The utility model discloses the check valve can realize the function the same with current built-in hydraulic check valve, changes the movable structure of valve in the check valve inner chamber, and consequently the external dimension is than current short, and required installation length is littleer, can be applicable to more complicated installation environment.

Description

Short built-in hydraulic one-way valve

Technical Field

The utility model relates to a built-in hydraulic check valve, in particular to built-in hydraulic check valve of short type.

Background

The existing built-in hydraulic check valve is divided into A, B types of structures, one type of structure is a long structure, the valve moves up and down in the valve body, the other type of structure is a short structure, and in the process that the valve moves up and down in the valve body, the valve rod of the valve can extend out of the valve body, so that the required space range of the whole check valve in the pipeline is still the same as the first type of structure, and a long installation environment is required to be provided by the water pipeline.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a built-in hydraulic check valve of short type, the utility model discloses the check valve can realize the function the same with current built-in hydraulic check valve, changes the movable structure of valve at the check valve inner chamber, and consequently the external dimension is than current weak point, and required installation length is littleer, can be applicable to more complicated installation environment.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a built-in hydraulic pressure check valve of short type, including upper bracket and lower carriage, the equal injection moulding of upper bracket and lower carriage, the inside of lower carriage is hollow out construction, install the valve in the inner chamber of lower carriage, the valve passes through the spring to be fixed on the valve rod of lower carriage inner chamber, the spring cup joints in the outside of valve rod, upper bracket and lower carriage pass through buckle fixed connection, the junction outside of upper bracket and lower carriage is provided with sealing washer an, the outside of valve is provided with sealing washer b, the top of valve rod is provided with sealing washer c.

As the utility model discloses a preferred technical scheme of built-in hydraulic check valve of short type, the valve passes through the spring and moves about in the inner chamber of lower carriage.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses the check valve can realize the function the same with current built-in hydraulic check valve, changes the movable structure of valve in the check valve inner chamber, and consequently the external dimension is than current short, and required installation length is littleer, can be applicable to more complicated installation environment.

Drawings

The accompanying drawings 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 invention and not to limit the invention. In the drawings:

FIG. 1 is one of the structural diagrams of the present invention;

FIG. 2 is a second structural diagram of the present invention;

fig. 3 is a front view of the present invention;

fig. 4 is a diagram illustrating the open state of the valve according to the present invention;

fig. 5 is a valve closed state diagram of the present invention;

FIG. 6 is a prior art internal hydraulic check valve block diagram;

FIG. 7 is a block diagram of another type of internal hydraulic check valve of the prior art;

in the figure: 1. an upper bracket; 2. a lower bracket; 3. a sealing ring a; 4. a valve; 5. a sealing ring b; 6. a seal ring c; 7. a spring; 8. a valve stem.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention. Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1

As shown in fig. 1-5, the utility model provides a built-in hydraulic check valve of short type, including upper bracket 1 and lower carriage 2, upper bracket 1 and the equal injection moulding of lower carriage 2, the inside of lower carriage 2 is hollow out construction, install valve 4 in the inner chamber of lower carriage 2, valve 4 passes through spring 7 to be fixed on the valve rod 8 of lower carriage 2 inner chamber, spring 7 cup joints in the outside of valve rod 8, upper bracket 1 and lower carriage 2 pass through buckle fixed connection, the junction outside of upper bracket 1 and lower carriage 2 is provided with sealing washer a3, play the effect of preventing leaking between support and water pipe, the outside of valve 4 is provided with sealing washer b5, the top of valve rod 8 is provided with sealing washer c6, sealing washer b5 when the valve is closed, sealing washer c6 plays the effect of preventing leaking between valve 4 and support.

Further, the valve 4 moves up and down in the inner cavity of the lower bracket 2 through a spring 7.

As shown in fig. 6, fig. 6 is a structure diagram of a built-in hydraulic check valve in the prior art (referred to as a type a for short);

fig. 7 is a structural diagram of another built-in hydraulic check valve in the prior art (referred to as type B);

the built-in hydraulic check valves mainly include the following two types, wherein fig. 6 is an A-type simplified diagram, fig. 7 is a B-type simplified diagram, and the closed state, the closed state and the open state are sequentially formed from left to right;

the spring 7 will push the valve 4 back to the closed position by fixing the one-way valve in the water line. When water flows from the positive direction (upper direction in the figure), the water flow pushes the valve 4 away, and water can pass through; when water flows from the reverse direction, the water flow and the spring 7 can close the valve 4 together to play a role in preventing reverse flow;

referring to fig. 6-7, t represents the valve stroke, and the length of the A-shaped bracket is equal to about 2t, namely the required installation space is about 2 t; the length of the B-shaped bracket is about equal to t, but the bracket can extend out of t when the bracket is opened, and the required installation space is still about 2 t; the size of the one-way valve bracket is approximately equal to t, and the required installation space is also approximately equal to t;

compared with the one-way valve structure in fig. 6 and 7, the valve 4 moves up and down in the inner cavity of the lower bracket 2 through the spring 7, so the size is approximately equal to t, and the required installation space is approximately equal to t; compared with the A type and the B type, the check valve adopts the same working principle, optimizes the structural design, and has smaller required installation length when the valve reaches the same stroke, thereby being applicable to more complex installation environment.

The utility model discloses the check valve can realize the function the same with current built-in hydraulic check valve, changes valve 4 at the active structure of check valve inner chamber, and consequently the external dimension is than current short, and required installation length is littleer, can be applicable to more complicated installation environment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. The short built-in hydraulic check valve comprises an upper support (1) and a lower support (2) and is characterized in that the upper support (1) and the lower support (2) are both subjected to injection molding, the lower support (2) is of a hollow structure, a valve (4) is installed in an inner cavity of the lower support (2), the valve (4) is fixed on a valve rod (8) in the inner cavity of the lower support (2) through a spring (7), the spring (7) is sleeved on the outer side of the valve rod (8), the upper support (1) and the lower support (2) are fixedly connected through a buckle, a sealing ring a (3) is arranged outside the joint of the upper support (1) and the lower support (2), a sealing ring b (5) is arranged on the outer side of the valve (4), and a sealing ring c (6) is arranged at the top end of the valve rod (8).

2. The short built-in hydraulic check valve according to claim 1, characterized in that the valve (4) moves up and down in the inner cavity of the lower bracket (2) through a spring (7).

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