CN211951622U

CN211951622U - Air release valve

Info

Publication number: CN211951622U
Application number: CN202020061373.0U
Authority: CN
Inventors: 金焱平; 陶剑英
Original assignee: Wuhan Xiete Valve Technology Co ltd
Current assignee: Wuhan Xiete Valve Technology Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-11-17
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses a deflation valve, which comprises a valve body, wherein the upper end of the valve body is provided with an exhaust port, the inner cavity of the valve body is provided with a floating ball, the upper part of the floating ball is connected with a sealing block through a connecting rod, and the sealing block can seal the exhaust port along with the rising of the water level in the valve body; the lower end of the valve body is detachably connected with a first pipeline, the first pipeline extends into an exhaust pipe of a second pipeline and is in threaded connection with the exhaust pipe, a water inlet hole is formed in the side wall of the lower portion of the first pipeline, and the bottom of the first pipeline is fixedly connected with a first sealing gasket. And a guide rod penetrating through the floating ball and the sealing block is also arranged in the valve body. The utility model discloses can take off the bleed valve under the condition that does not influence the water flow, convenient operation is quick, can not cause the water to leak, is favorable to the change and the maintenance of bleed valve, and the guide bar in the valve body makes floater and sealed piece can only follow the vertical direction motion to prolong the life of this bleed valve, avoided the not tight condition of sealing.

Description

Air release valve

Technical Field

The utility model relates to a valve field, concretely relates to bleed valve.

Background

The air release valve is also called as an air release valve, and a valve for air release commonly used in water heating installation is generally installed at the highest point of the system and is commonly found on a heating radiator and a water separator. Because the heating installation can be gaseous get into the heating installation pipeline at the in-process of moisturizing, when gaseous jam, can cause the heating installation not hot, so will set up the bleed valve and be used for letting away gas, make heating system circulation unobstructed. The action principle is as follows: when water enters the pipeline, the plug head stops at the lower part of the positioning frame to exhaust a large amount of gas; when the air is exhausted, water enters the valve to float the ball, the transmission plug is closed, and the air exhaust is stopped. When the pipeline runs normally, a small amount of gas can be naturally generated, the gas can be gathered at the upper part in the pipeline to a certain extent, the water level in the valve descends, and the floating ball descends along with the water to discharge the gas from the small hole. If power failure and pump stop occur, negative pressure can occur at any time when water flow in the pipeline is empty, the floating ball descends along with water, and the small hole is opened to drive the large hole to carry out mass air inlet so as to ensure the safety of the pipeline.

Chinese patent CN206830923U discloses an automatic exhaust valve, which comprises a valve body, wherein an air inlet is arranged at the bottom of the valve body, an air inlet pipe is connected at the bottom of the air inlet, a top plate is arranged at the top of the valve body, an air outlet is arranged on the top plate, a floating block is arranged in an inner cavity of the valve body, the top of the floating block is connected with a first supporting rod, the top of the first supporting rod is connected with a second supporting rod through a hinged shaft, a blocking block is connected at the top of a supporting plate, a spring is connected at the top of the blocking block, a spiral rod is connected at the top of the spring, threads are arranged on the spiral rod, supporting columns are welded at two sides of the top plate, the top of each supporting column is connected with the supporting plate, a screw hole is arranged on the supporting plate, the spiral rod passes through, the pulling force of the spring on the block is adjusted, so that the exhaust pressure of the automatic exhaust valve is adjusted. However, when the automatic exhaust valve is detached from the pipeline, the pipeline needs to be closed to avoid liquid leakage in the pipeline, so that the operation is inconvenient, and the maintenance of the exhaust valve is not facilitated.

Disclosure of Invention

To prior art's defect, the utility model provides a bleed valve, this bleed valve can take off under the condition that does not influence the normal flow of water, and convenient operation is quick, can not cause the water to leak, is favorable to the maintenance of this bleed valve.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

a deflation valve comprises a valve body, wherein an exhaust port is formed in the upper end of the valve body, a floating ball is arranged in an inner cavity of the valve body, the upper part of the floating ball is connected with a sealing block through a connecting rod, and the sealing block can seal the exhaust port along with the rise of the water level in the valve body; the lower end of the valve body is detachably connected with a first pipeline, the first pipeline extends into an exhaust pipe of a second pipeline and is in threaded connection with the exhaust pipe, a water inlet hole is formed in the side wall of the lower portion of the first pipeline, and the bottom of the first pipeline is fixedly connected with a first sealing gasket. When the valve is used, the exhaust pipe of the first pipeline and the exhaust pipe of the second pipeline are connected through threads, the water inlet hole in the side wall of the lower portion of the first pipeline extends into the water body circulation pipeline of the second pipeline, and then the valve body is connected with the first pipeline. Therefore, the gas in the second pipeline enters the valve body through the water inlet hole and is discharged from the exhaust port of the valve body. The air release valve needs to be periodically detached for maintenance, the valve body and the first pipeline are lifted upwards at the moment, the water inlet hole is hidden in the exhaust pipe of the second pipeline, the first sealing gasket below the first pipeline is used for sealing, water body leakage is avoided, and the first pipeline is fixed through the sealing adhesive tape. Then dismantle the valve body from pipeline one, can realize taking off bleed valve, convenient operation under the circumstances that does not influence the water flow.

Preferably, a guide rod is arranged in the valve body and penetrates through the sealing block and the floating ball. The floating ball in the inner cavity of the valve body can collide with the valve body due to the fluctuation of water, noise is generated, the floating ball is damaged, and the floating ball can be inclined to cause the loose sealing condition, so that the guide rod is arranged in the valve body, the floating ball and the sealing block can only vertically move along the guide rod, and the floating ball cannot float in the valve body at will.

Preferably, the guide rod is one or more.

Preferably, the valve body is connected with the first pipeline through a flange.

Preferably, a second sealing gasket is arranged at the joint of the first pipeline and the exhaust pipe. The second sealing gasket can seal the upper parts of the first pipeline and the exhaust pipe, so that water is prevented from overflowing and leaking between the exhaust pipe of the second pipeline and the first pipeline, and the sealing is tighter.

Preferably, the sealing block, the first sealing gasket and the second sealing gasket are all made of rubber. The rubber has good sealing property and corrosion resistance.

The utility model discloses a beneficial effect lie in:

(1) can dismantle below the valve body and be connected with pipeline one, be equipped with inlet opening and bottom on the lower part lateral wall of pipeline one and link firmly sealed the pad, consequently can realize taking off the bleed valve under the condition that does not influence the water flow, convenient operation is quick, can not cause the water to leak, is favorable to the change and the maintenance of bleed valve.

(2) Be equipped with the guide bar that runs through floater and sealed piece in the valve body, avoid the undulant floater that causes of water to avoided the noise and the damage of floater that the floater and valve body collision produced, prolonged the life of this bleed valve, avoided simultaneously because floater and sealed piece incline to lead to the condition not sealed tight.

Drawings

Fig. 1 is a schematic structural view of a purge valve according to embodiment 1 of the present invention;

FIG. 2 is a schematic structural view showing a vent valve of the embodiment 1 of the present invention removed;

fig. 3 is a schematic structural view of a purge valve according to embodiment 2 of the present invention;

in the figure: 1. a valve body; 2. an exhaust port; 3. a floating ball; 4. a connecting rod; 5. a sealing block; 6. a flange; 7. a first pipeline; 8. a second pipeline; 9. an exhaust pipe; 10. a water inlet hole; 11. a first sealing gasket; 12. a guide bar; 13. and a second sealing gasket.

Detailed Description

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

Example 1

This embodiment provides a bleed valve, as shown in figure 1, 1 end of valve body is equipped with

gas vent

2, and 1 inner chamber of valve body is equipped with floater 3, floater 3 top is connected with sealed piece 5 through connecting rod 4. The lower end of the valve body 1 is connected with a first pipeline 7 through a flange 6. The first pipeline 7 extends into the exhaust pipe 9 of the second pipeline 8, and the first pipeline 7 is connected with the exhaust pipe 9 through threads. A water inlet hole 10 is formed in the side wall of the lower portion of the first pipeline 7, and a first sealing gasket 11 is fixedly connected to the bottom of the first pipeline 7.

The specific use method of the air release valve comprises the following steps: when the valve is used, the first pipeline 7 is placed into the exhaust pipe 9 of the second pipeline 8, the first pipeline 7 is connected with the exhaust pipe 9 through threads, the water inlet hole 10 in the first pipeline 7 extends into a water body circulation pipeline of the second pipeline 8, and then the first pipeline 7 is connected with the valve body 1 through the flange 6. Therefore, the gas in the second pipe 8 enters the valve body 1 through the water inlet hole 10 and is discharged from the exhaust port of the valve body 1. When gas is completely discharged, the water in the second pipeline 8 enters the valve body 1, so that the floating ball 3 in the valve body 1 gradually floats, and the connecting rod 4 drives the sealing block 5 to move upwards, so that the sealing block 5 seals the exhaust port 2, the exhaust is stopped, and the liquid leakage is avoided. Gas in the water can gather gradually in the top of 1 inner chamber of valve body this moment, along with gaseous accumulation, the water level descends gradually in the valve body 1, and floater 3 also can drive sealed piece 5 and descend gradually to open gas vent 2, gas is discharged from gas vent 2. When the air release valve needs to be detached, as shown in fig. 2, the valve body 1 and the first pipeline 7 are lifted upwards together, so that the water inlet hole 10 is hidden in the exhaust pipe 9, and the first sealing gasket 11 below the first pipeline 7 is used for sealing to prevent water body leakage. In order to prevent the first pipeline 7 from sliding downwards under the action of gravity, the first pipeline 7 is fixed by using a sealing adhesive tape. Then dismantle valve body 1 from pipeline 7 and get off, can realize taking off bleed valve under the circumstances that does not influence the water flow, convenient operation. When the valve body 1 is used again, the valve body 1 is connected with the first pipeline 7, and the sealing adhesive tape is detached.

Example 2

As shown in fig. 3, the present embodiment is different from embodiment 1 in that: (1) two guide rods 12 are arranged in the valve body 1, and the guide rods 12 penetrate through the sealing block 5 and the floating ball 3, so that the floating ball 3 and the sealing block can only move in the vertical direction along the guide rods 12. When avoiding the water undulant, the floater 3 produces the noise or leads to the floater 3 to damage with 1 collision of valve body to prolonged the life of this bleed valve, avoided simultaneously because floater 3 and sealed piece 5 fall to one side and lead to the condition not sealed tight.

(2) And a second sealing gasket 13 is arranged at the joint of the outer pipe wall of the first pipeline 7 and the exhaust pipe 9. The second sealing gasket 13 can prevent the water from overflowing and leaking from the gap between the first pipeline 7 and the exhaust pipe 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A deflation valve comprises a valve body (1) and is characterized in that an exhaust port (2) is formed in the upper end of the valve body (1), a floating ball (3) is arranged in the inner cavity of the valve body (1), the upper end of the floating ball (3) is connected with a sealing block (5) through a connecting rod (4), and the sealing block (5) can seal the exhaust port (2) along with the rise of the water level in the valve body (1);

the lower extreme of valve body (1) can be dismantled and be connected with pipeline (7), pipeline (7) stretch into in blast pipe (9) of pipeline two (8) just pipeline (7) with blast pipe (9) pass through threaded connection, be provided with inlet opening (10) just on the lower part lateral wall of pipeline (7) the sealed pad (11) of bottom link firmly of pipeline (7).

2. A gas purge valve according to claim 1, characterized in that a guide rod (12) is provided in the valve body, the guide rod (12) extending through the sealing block (5) and the floating ball (3).

3. A gas purge valve according to claim 2, characterized in that the pilot stem (12) is one or more.

4. A gas purge valve according to claim 1, characterized in that the valve body (1) is connected to the first duct (7) by a flange (6).

5. A gas purge valve according to claim 1, characterised in that a second sealing gasket (13) is arranged at the junction of the first duct (7) and the exhaust duct (9).

6. A gas purge valve according to claim 5, characterised in that the sealing block (5), the first sealing gasket (11) and the second sealing gasket (13) are all made of rubber.