A composite high-speed intake and exhaust valve

Abstract

The utility model relates to the technical field of air valve equipment, and discloses a composite high-speed intake and exhaust valve, including a valve body, an inner shell fixedly connected to the interior of the valve body, a float ball arranged inside the inner shell, an exhaust hood arranged on the upper surface of the valve body, a sleeve fixedly connected to the upper surface of the float ball, a fixed cylinder fixedly connected to the upper surface of the inner wall of the exhaust hood, the inner wall of the sleeve slidably connected to the outer wall of the fixed cylinder, a limit seat one fixedly connected to the lower part of the inner wall of the sleeve, and a buffer spring fixedly connected to the inner wall of the limit seat one. The utility model is provided with a sleeve, a fixed cylinder, a limit seat and a buffer spring, so that when the float ball impacts upward rapidly, the sleeve will slide onto the fixed cylinder, and the buffer spring can be contracted, and the sleeve and the fixed cylinder can play a guiding role, so that it can remain stable, thereby reducing the impact force of the float ball, thereby reducing the replacement frequency of the float ball and increasing its service life.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valve equipment, and more specifically, to a composite high-speed intake and exhaust valve. Background Art

[0002] The exhaust valve is used for pipeline exhaust in independent heating systems, central heating systems, heating boilers, central air conditioners, floor heating and solar heating systems. When gas overflows in the system, the gas will climb up along the pipeline and eventually gather at the highest point of the system. The exhaust valve is generally installed at the highest point of the system. When the gas enters the exhaust valve cavity, it gathers at the upper part of the exhaust valve. As the gas in the valve increases, the pressure rises. When the gas pressure is greater than the system pressure, the gas will cause the water level in the cavity to drop, and the float will drop with the water level, opening the exhaust port; after the gas is exhausted, the water level rises, and the float also rises, closing the exhaust port. In the same way, when negative pressure is generated in the system, the water level in the valve cavity drops, and the exhaust port is opened. Since the external atmospheric pressure is greater than the system pressure at this time, the atmosphere will enter the system through the exhaust port to prevent the harm of negative pressure. If the valve cap on the exhaust valve body is tightened, the exhaust valve stops exhausting. Under normal circumstances, the valve cap should be in the open state. The exhaust valve can also be used in conjunction with the isolation valve to facilitate the maintenance of the exhaust valve.

[0003] The working principle of the current composite high-speed air inlet and outlet valve is: when the pipeline is filled with water, the gas in the pipeline needs to be discharged. At this time, when there is no water in the valve, the float will not be blown up by the gas and contact the valve seat to achieve the exhaust process. When the valve is filled with water, the float will float up and contact the valve seat to play a sealing role. When the pipeline is in a negative pressure state, the valve will take in air again to achieve the air intake process.

[0004] However, when the pipeline is filled with water, the water flow rate in the pipeline is very fast, and the valve will be filled with water instantly. At this time, the float will impact the valve seat at high speed under the action of buoyancy. The impact force at this time is particularly large, which will cause the float ball to deform. Over time, the valve seat and the float are frequently hit at high speed, and the float is easily damaged, greatly shortening the service life of the valve. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a composite high-speed intake and exhaust valve, which has the advantages of being able to reduce the impact force of the float, thereby reducing the replacement frequency of the float and increasing its service life.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a compound high-speed intake and exhaust valve, comprising a valve body, an inner shell fixedly connected to the interior of the valve body, a float arranged inside the inner shell, an exhaust hood arranged on the upper surface of the valve body, a sleeve fixedly connected to the upper surface of the float, a fixed cylinder fixedly connected to the upper surface of the inner wall of the exhaust hood, the inner wall of the sleeve slidably connected to the outer wall of the fixed cylinder, the lower part of the inner wall of the sleeve fixedly connected to a limiting seat one, the inner wall of the limiting seat one fixedly connected to a buffer spring, the upper part of the inner wall of the fixed cylinder fixedly connected to a limiting seat two, and one end of the buffer spring fixedly connected to the inner wall of the limiting seat two.

[0007] As a preferred technical solution of a composite high-speed intake and exhaust valve of the utility model, a flange is fixedly connected to the lower surface of the valve body, and an air intake hole is opened in the middle of the flange.

[0008] As a preferred technical solution of a composite high-speed intake and exhaust valve of the utility model, the valve body is fixedly connected to the exhaust hood by bolts.

[0009] As an optimal technical solution for a composite high-speed intake and exhaust valve of the utility model, a connecting pipe is fixedly connected to the upper part of one side of the outer wall of the valve body, a trace exhaust valve assembly is arranged at one end of the connecting pipe, and a valve is arranged on one side of the outer wall of the connecting pipe.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model adopts the arrangement of the sleeve, the fixed cylinder, the limit seat and the buffer spring. When the float ball impacts upward rapidly, the sleeve will slide toward the fixed cylinder, thereby contracting the buffer spring. The sleeve and the fixed cylinder can play a guiding role to keep it stable, thereby reducing the impact force of the float ball, thereby reducing the replacement frequency of the float ball and increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 This is a cross-sectional view of the utility model;

[0014] Figure 3 This is a cross-sectional view of the utility model;

[0015] Figure 4 This is an expanded view of the structure of the utility model.

[0016] In the figure: 1. valve body; 2. inner tank; 3. float; 4. exhaust cover; 5. sleeve; 6. fixing cylinder; 7. limit seat 1; 8. limit seat 2; 9. buffer spring; 10. flange; 11. air inlet; 12. bolt; 13. connecting pipe; 14. trace exhaust valve assembly; 15. valve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figures 1 to 4 As shown, the utility model provides a composite high-speed intake and exhaust valve, including a valve body 1, an inner liner 2 is fixedly connected inside the valve body 1, a float 3 is arranged inside the inner liner 2, an exhaust cover 4 is arranged on the upper surface of the valve body 1, a sleeve 5 is fixedly connected to the upper surface of the float 3, a fixed cylinder 6 is fixedly connected to the upper surface of the inner wall of the exhaust cover 4, the inner wall of the sleeve 5 is slidably connected to the outer wall of the fixed cylinder 6, the lower part of the inner wall of the sleeve 5 is fixedly connected to a limiting seat 7, the inner wall of the limiting seat 7 is fixedly connected to a buffer spring 9, the upper part of the inner wall of the fixing cylinder 6 is fixedly connected to a limiting seat 8, and one end of the buffer spring 9 is fixedly connected to the inner wall of the limiting seat 8;

[0019] Through the arrangement of the sleeve 5, the fixed cylinder 6, the limit seat and the buffer spring 9, when the float 3 impacts upward rapidly, the sleeve 5 will slide onto the fixed cylinder 6, thereby contracting the buffer spring 9, and the sleeve 5 and the fixed cylinder 6 can play a guiding role to enable it to remain stable, thereby reducing the impact force of the float 3, thereby reducing the replacement frequency of the float 3 and increasing its service life.

[0020] The lower surface of the valve body 1 is fixedly connected with a flange 10, and an air inlet 11 is opened in the middle of the flange 10;

[0021] By providing the flange 10 , it is convenient for users to install the device.

[0022] The valve body 1 is fixedly connected to the exhaust hood 4 by bolts 12;

[0023] By providing the bolts 12 , the valve body 1 and the exhaust hood 4 can be effectively fixed in position.

[0024] A connecting pipe 13 is fixedly connected to the upper part of one side of the outer wall of the valve body 1, a micro exhaust valve assembly 14 is arranged at one end of the connecting pipe 13, and a valve 15 is arranged on one side of the outer wall of the connecting pipe 13;

[0025] The utility model adopts the arrangement of the sleeve, the fixed cylinder, the limit seat and the buffer spring. When the float ball impacts upward quickly, the sleeve will slide on the fixed cylinder, thereby contracting the buffer spring. The sleeve and the fixed cylinder can play a guiding role to keep it stable, thereby reducing the impact force of the float ball, thereby reducing the replacement frequency of the float ball and increasing its service life. When water comes in, water enters from the air inlet 11. However, when there is air in the water, a large amount of gas will be discharged upward according to physical principles. When a large amount of exhaust is completed, the water in the pipe flows rapidly. The water level rises due to the rapid flow, and the float 3 is pushed by the principle of water buoyancy, so that the float 3 and the sleeve 5 rise together. The top surface of the float 3 is larger than the valve seat, so that it can play a sealing role. Through the arrangement of the sleeve 5, the fixed cylinder 6, the limit seat and the buffer spring 9, when the float 3 impacts upward rapidly, the sleeve 5 will slide onto the fixed cylinder 6, and then the buffer spring 9 can be contracted, and the sleeve 5 and the fixed cylinder 6 can play a guiding role, so that it can remain stable, thereby reducing the impact force of the float 3 and reducing the replacement frequency of the float 3.

[0026] The working principle and use process of this utility model:

[0027] When the device is used, when water comes, water enters from the air inlet 11, but when there is air in the water, according to the physical principle, a large amount of gas will be discharged upwards. When a large amount of exhaust is completed, the water in the pipe flows rapidly, the water level rises, and the float 3 is pushed by the principle of water buoyancy, so that the float 3 and the sleeve 5 rise together. The top surface of the float 3 is larger than the valve seat, so that it can play a sealing role. Through the arrangement of the sleeve 5, the fixed tube 6, the limit seat and the buffer spring 9, when the float 3 quickly impacts upwards, the sleeve 5 will slide onto the fixed tube 6, and then the buffer spring 9 can be contracted, and the sleeve 5 and the fixed tube 6 can play a guiding role, so that it can remain stable, thereby reducing the impact force of the float 3, thereby reducing the replacement frequency of the float 3 and increasing its service life.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite high-speed intake and exhaust valve, comprising a valve body (1), characterized in that: The valve body (1) is fixedly connected to an inner liner (2), a float (3) is arranged inside the inner liner (2), an exhaust hood (4) is arranged on the upper surface of the valve body (1), a sleeve (5) is fixedly connected to the upper surface of the float (3), a fixed cylinder (6) is fixedly connected to the upper surface of the inner wall of the exhaust hood (4), the inner wall of the sleeve (5) is slidably connected to the outer wall of the fixed cylinder (6), the lower part of the inner wall of the sleeve (5) is fixedly connected to a limiting seat (7), the inner wall of the limiting seat (7) is fixedly connected to a buffer spring (9), the upper part of the inner wall of the fixed cylinder (6) is fixedly connected to a limiting seat (8), and one end of the buffer spring (9) is fixedly connected to the inner wall of the limiting seat (8).

2. A compound high-speed intake and exhaust valve according to claim 1, characterized in that: A flange (10) is fixedly connected to the lower surface of the valve body (1).

3. A compound high-speed intake and exhaust valve according to claim 2, characterized in that: An air inlet hole (11) is provided in the middle of the flange (10).

4. A compound high-speed intake and exhaust valve according to claim 3, characterized in that: The valve body (1) is fixedly connected to the exhaust hood (4) via bolts (12).

5. A compound high-speed intake and exhaust valve according to claim 4, characterized in that: A connecting pipe (13) is fixedly connected to the upper portion of one side of the outer wall of the valve body (1), and a trace exhaust valve assembly (14) is provided at one end of the connecting pipe (13).

6. A compound high-speed intake and exhaust valve according to claim 5, characterized in that: A valve (15) is provided on one side of the outer wall of the connecting pipe (13).

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