CN217762218U - Check valve of emptying pipeline - Google Patents

Abstract

The utility model discloses a check valve of unloading pipeline, include: the left end of the check valve body is fixedly connected with a bypass pipeline in an integrated mode, a connecting pipe is connected between the check valve body and the bypass pipeline, and a fixing block is fixedly connected to the inner end face of the check valve body; the first connecting block is fixedly connected to the upper end face of the check valve plate; the second connecting block is fixedly connected to the upper end face of the first connecting rod; and a plunger disposed inside the bypass line. This check valve of unloading pipeline reforms transform on the basis of dish formula check valve for when water supply system stopped the operation, persist the medium in the automatic evacuation pipeline, can realize automatic evacuation, protect water supply system's function, application scope is wide, and sensitivity is high, has solved current check valve and has leaded to ponding to persist in water drainage pipe easily after the use and take place the phenomenon of icing, and then leads to the problem of risk such as water supply system trouble or pipeline damage.

Description

Check valve of emptying pipeline

Technical Field

The utility model relates to the technical field of valves, specifically a check valve of unloading pipeline.

Background

The check valve is usually installed to water supply system in the water pump outlet side for the damage of high-pressure water hammer to water supply system when the protection water pump stops operating, but, there is certain defect in the use of most check valves in the existing market.

The existing check valve easily causes accumulated water to remain in a drainage pipeline after being used, the remained water can be frozen in winter or in a low-temperature environment, the risk of water supply system failure or pipeline damage and the like is caused, and then certain use defects exist, so that the check valve of the emptying pipeline is provided, and the problem provided in the prior art is solved conveniently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve of unloading pipeline to current check valve that proposes in solving above-mentioned background art leads to ponding to persist in water drainage pipe easily after using, under winter or low temperature environment, the phenomenon of freezing can take place for the water of persisting, leads to the problem of risk such as water supply system trouble or pipeline damage.

In order to achieve the above purpose, the utility model provides a following technical scheme: a check valve for a flare line, comprising:

the left end of the check valve body is integrally and fixedly connected with a bypass pipeline, a connecting pipe is connected between the check valve body and the bypass pipeline, the inner end face of the check valve body is fixedly connected with a fixed block, and a check valve plate is arranged above the fixed block;

the first connecting block is fixedly connected to the upper end face of the check valve plate, the upper end of the first connecting block is connected with a first connecting rod, and the left end of the first connecting rod is connected with an installation block fixedly installed inside the check valve body;

the second connecting block is fixedly connected to the upper end face of the first connecting rod, the upper end of the second connecting block is connected with a second connecting rod, and the left end of the second connecting rod is connected with a third connecting block;

the plunger is arranged in the bypass pipeline, a connection groove is formed in the outer surface of the plunger, and a sealing ring is connected inside the connection groove.

Preferably, the connecting pipe is arranged in an inclined manner, and the connecting pipe is integrally and fixedly connected to the upper end of the bypass pipeline.

Preferably, the check valve plate and the second connecting rod are rotatably connected with the first connecting rod through a first connecting block and a second connecting block respectively.

Preferably, the first connecting rod is rotatably connected with the mounting block.

Preferably, the plunger is rotatably connected with the left end of the second connecting rod through a third joint block.

Preferably, the joining groove and the round beads are axially and uniformly distributed on the outer surface of the plunger, and the plunger is in sliding connection with the sealing ring through the joining groove.

Compared with the prior art, the beneficial effects of the utility model are that: the check valve of the emptying pipeline is improved on the basis of the disc check valve, is used for automatically emptying the medium left in the pipeline when the water supply system stops running, can realize the functions of automatically emptying and protecting the water supply system, has wide application range and high sensitivity, and solves the problems that the existing check valve easily causes accumulated water to remain in the drainage pipeline and generate icing phenomenon after being used, and further causes the risks of water supply system failure or pipeline damage and the like;

1. the disc type check valve is provided with a plunger, a bypass pipeline and a connecting pipe, a right bypass pipeline is arranged on the left side of a check valve body, the connecting pipe is connected between the check valve body and the bypass pipeline, and the plunger is arranged in the bypass pipeline;

2. be equipped with the head rod, second connecting rod and plunger, the position of action control plunger through the check valve block, when the check valve block is located the closed position, the plunger is located the inside check valve body one end that is close to of bypass line, the connecting pipe switches on evacuation check valve body inner medium this moment, check valve body inner medium passes through connecting pipe and bypass line backward flow to pond, when the check valve block is opened, the plunger is located bypass line and keeps away from check valve body one end, the bypass line is closed, water passes through check valve body and normally discharges, thoroughly shut down when water supply system, the evacuation action just can be carried out, when big to frequency conversion operation or fluid resistance, also can use, application scope is wide, high sensitivity.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the open state of the check valve plate of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

fig. 4 is an enlarged schematic structural view of the point B in fig. 1 according to the present invention.

In the figure: 1. a check valve body; 2. a bypass line; 3. a connecting pipe; 4. a fixed block; 5. a check valve plate; 6. a first engagement block; 7. a first connecting rod; 8. mounting blocks; 9. a second engagement block; 10. a second connecting rod; 11. a third engagement block; 12. a plunger; 13. a joining groove; 14. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a check valve for a vent line comprising: the left end of the check valve body 1 is fixedly connected with a bypass pipeline 2 in an integrated mode, a connecting pipe 3 is connected between the check valve body 1 and the bypass pipeline 2, a fixing block 4 is fixedly connected to the inner end face of the check valve body 1, a check valve block 5 is arranged above the fixing block 4, a first connection block 6 is fixedly connected to the upper end face of the check valve block 5, a first connection rod 7 is connected to the upper end of the first connection block 6, an installation block 8 fixedly installed inside the check valve body 1 is connected to the left end of the first connection rod 7, a second connection block 9 is fixedly connected to the upper end face of the first connection rod 7, a second connection rod 10 is connected to the upper end of the second connection block 9, a third connection block 11 is connected to the left end of the second connection rod 10, a plunger 12 is arranged inside the bypass pipeline 2, a connection groove 13 is formed in the outer surface of the plunger 12, and a sealing ring 14 is connected to the inside of the connection groove 13.

When the check valve of the emptying pipeline is used, firstly, as shown in fig. 1 and fig. 2, the check valve body 1 automatically controls the opening and closing of the check valve sheet 5 by means of the flowing of a medium, and is transformed on the basis of a disc-type check valve, a right bypass pipeline 2 is arranged on the left side of the check valve body 1, and the connecting pipe 3 is arranged in an inclined shape, and the connecting pipe 3 plays a role of connecting the bypass pipeline 2 with the check valve body 1, specifically, as shown in fig. 3 and fig. 4, because the check valve sheet 5 and the second connecting rod 10 are respectively in rotary connection with the first connecting rod 7 through the first connecting block 6 and the second connecting block 9, and the first connecting rod 7 is in rotary connection with the mounting block 8, a plunger 12 is arranged in the bypass pipeline 2, and the plunger 12 is in rotary connection with the second connecting rod 10 through the third connecting block 11, and the plunger 12 is in sliding connection with the sealing ring 14 through the connecting groove 13, that the plunger 12 can move left and right in the bypass pipeline 2 along with the rotation of the first connecting rod 7 and the second connecting rod 10, and is used for controlling the water outlet direction of the connecting pipe 3;

specifically, as shown in fig. 1, fig. 2 and fig. 3, since the plunger 12 is connected to the check valve plate 5 through the second connecting rod 10 and the first connecting rod 7, the position of the plunger 12 is controlled by the action of the check valve plate 5, when the check valve plate 5 is located at the closed position, the plunger 12 is located inside the bypass pipeline 2 and near one end of the check valve body 1, at this time, the connecting pipe 3 is conducted to empty the medium inside the check valve body 1, the medium inside the check valve body 1 flows back to the water tank through the connecting pipe 3 and the bypass pipeline 2, when the check valve plate 5 is opened, the plunger 12 is located inside the bypass pipeline 2 and far from one end of the check valve body 1, the bypass pipeline 2 is closed, and water is normally discharged through the check valve body 1, which is the use method of the check valve of the emptying pipeline.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, and conventional model, including the conventional connected mode among the circuit connection adoption prior art, and the details are not repeated here, and the content that does not make detailed description in this description belongs to the prior art that skilled person in the art knows.

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 or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a check valve of unloading pipeline which characterized in that: the method comprises the following steps:

the check valve comprises a check valve body (1), wherein a bypass pipeline (2) is integrally and fixedly connected to the left end of the check valve body (1), a connecting pipe (3) is connected between the check valve body (1) and the bypass pipeline (2), a fixing block (4) is fixedly connected to the inner end face of the check valve body (1), and a check valve plate (5) is arranged above the fixing block (4);

the check valve comprises a check valve body (1), a first connecting block (6) and a second connecting block (7), wherein the first connecting block (6) is fixedly connected to the upper end face of the check valve plate (5), the upper end of the first connecting block (6) is connected with the first connecting rod (7), and the left end of the first connecting rod (7) is connected with an installation block (8) fixedly installed inside the check valve body;

the second connecting block (9) is fixedly connected to the upper end face of the first connecting rod (7), the upper end of the second connecting block (9) is connected with a second connecting rod (10), and the left end of the second connecting rod (10) is connected with a third connecting block (11);

the plunger (12) is arranged inside the bypass pipeline (2), the outer surface of the plunger (12) is provided with a connecting groove (13), and a sealing ring (14) is connected inside the connecting groove (13).

2. A vent line check valve in accordance with claim 1, wherein: the connecting pipe (3) is obliquely arranged, and the connecting pipe (3) is integrally and fixedly connected to the upper end of the bypass pipeline (2).

3. A vent line check valve in accordance with claim 1, wherein: the check valve plate (5) and the second connecting rod (10) are rotatably connected with the first connecting rod (7) through a first connecting block (6) and a second connecting block (9) respectively.

4. A check valve for a vent line in accordance with claim 1, wherein: the first connecting rod (7) is connected with the mounting block (8) in a rotating mode.

5. A check valve for a vent line in accordance with claim 1, wherein: the plunger (12) is rotatably connected with the left end of the second connecting rod (10) through a third connecting block (11).

6. A vent line check valve in accordance with claim 1, wherein: the connecting groove (13) and the sealing ring (14) are axially and uniformly distributed on the outer surface of the plunger (12), and the plunger (12) is in sliding connection with the sealing ring (14) through the connecting groove (13).

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