Exhaust valve with controllable air displacement

Abstract

The utility model belongs to the technical field of water delivery and air exhaust, and particularly relates to an air exhaust valve with controllable air displacement, which comprises a valve body, a circular main air exhaust port and a circular auxiliary air exhaust port are arranged at the top end of the valve body, the main air exhaust port is fixedly connected with a main air outlet nozzle, and the auxiliary air exhaust port is fixedly connected with an auxiliary air outlet nozzle. The diameter of a ring opening of the main exhaust port is larger than or equal to that of a ring opening of the auxiliary exhaust port, the outer wall of the main exhaust nozzle is provided with threads and is in threaded connection with a main valve, and the outer wall of the auxiliary exhaust nozzle is provided with threads and is in threaded connection with an auxiliary valve. The low cost of a mechanical control technology can be kept, the problems that the precision of a structure used by a traditional exhaust valve is limited, the structure is prone to being blocked by impurities, and the problem that the structure responds to internal changes of a system in time are solved, and the exhaust valve is suitable for meeting the requirements of different conditions of daily household water pipe exhaust.

Description

Technical Field

[0001] This utility model belongs to the field of water supply and exhaust technology, specifically relating to an exhaust valve with controllable exhaust volume. Background Technology

[0002] An automatic air vent valve is a device used to automatically remove air or gas from piping systems. It is widely used in HVAC, water supply and drainage, and industrial piping. Before the development of automatic air vent valves, early piping systems relied on manual air vent valves, which required manual operation, were inefficient, and prone to missed detections. With industrial development, the demand for automation spurred the development of the prototype of the automatic air vent valve.

[0003] Currently, automatic exhaust valves employ mechanical control, electric / pneumatic control, and intelligent control technologies. Electric / pneumatic control relies on power and control systems, resulting in higher costs. Intelligent control is suitable for large-scale pipe networks but not for everyday household use. Small household exhaust valves primarily utilize the inexpensive mechanical control technology.

[0004] The two main structures used in mechanical control technology are float-type lever mechanism and orifice plate and spring adjustment mechanism. However, float-type lever mechanism has limited accuracy and is easily blocked by impurities, while orifice plate and spring adjustment cannot respond to changes in the system in a timely manner.

[0005] There is a need for a new type of household exhaust valve that can maintain the low cost of mechanical control technology, solve the problems of limited accuracy and susceptibility to obstruction by impurities in float-type lever mechanisms, and address the issue that throttling orifice plates and spring adjustments cannot respond promptly to changes in the internal system. Utility Model Content

[0006] The purpose of this invention is to provide an exhaust valve with controllable exhaust volume to solve the above-mentioned technical problems.

[0007] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0008] An exhaust valve with controllable exhaust volume includes a valve body. The top of the valve body is provided with a circular main exhaust port and a secondary exhaust port. A main air outlet is fixedly connected to the main exhaust port, and a secondary air outlet is fixedly connected to the secondary exhaust port. The diameter of the main exhaust port is greater than or equal to the diameter of the secondary exhaust port. The outer wall of the main air outlet is threaded and threadedly connected to a main valve. The outer wall of the secondary air outlet is threaded and threadedly connected to a secondary valve.

[0009] As a further improvement, the main valve includes a sealing cover one and a sealing cover two. The inner wall of the sealing cover two is threaded and screws into the outer wall of the main air outlet. The top of the sealing cover two is provided with several connecting parts spaced apart circumferentially. The connecting parts are upward extensions of the main body of the sealing cover two and are not connected to each other. The outer wall of each connecting part is threaded. The inner wall of the sealing cover one is threaded and screws into the outer wall of the connecting parts. The top of the valve body surrounding the main air outlet is provided with a spring. A rubber ring is connected to the top of the spring. The inner ring of the rubber ring is tightly fitted to the outer wall of the main air outlet, and the top of the rubber ring is tightly fitted to the bottom of the sealing cover two.

[0010] As a further improvement, a sealing plug is provided at the upper end of the threaded inner wall of the second sealing cover. The sealing plug is a plurality of fan-shaped pieces, and the arc edges of the fan-shaped pieces are connected to the inner wall of the second sealing cover. The straight edges of the sealing plugs are connected to form a complete circle.

[0011] As a further improvement, a fixing member is connected to the inner top of the sealing cover. The fixing member is a cylinder made of rubber sheet with one side plane connected to the inner top of the sealing cover. The diameter of the circle formed by the fixing member is less than or equal to the diameter of the circle formed by the connecting member.

[0012] As a further improvement, the inner diameter of the secondary air outlet is larger than the diameter of the secondary exhaust port. The secondary air outlet is located on the periphery of the secondary exhaust port. The secondary valve includes a flow control element and a flow control cap. The flow control element is a combination of a cylinder and a cone. The pointed end of the cone is placed downwards in the secondary exhaust port. The outer wall of the cylindrical part is threaded and screws into the inner wall of the secondary air outlet. The inner wall of the flow control cap is threaded and screws into the outer wall of the cylindrical part of the flow control element.

[0013] As a further improvement, a sealing ring is connected to the top of the secondary exhaust port.

[0014] As a further improvement, the valve body is provided with an exhaust component, which has a fixed frame connected to the inner wall of the valve body. The exhaust component is filled with air. The top of the exhaust component is made of welded stainless steel. A float is provided at the center of the bottom of the exhaust component. The bottom end of the float is connected to the exhaust component by a thermoplastic rubber layer. The float is fixed to the bottom of the exhaust component. The top of the exhaust component is connected to a rubber plug. The connection between the rubber plug and the exhaust component is a thermoplastic rubber connecting layer. The rubber plug is located directly below the main exhaust port.

[0015] As a further improvement, there is a gap between the two sides of the exhaust component and the inner wall of the valve body, and a ventilation mesh is provided in the gap.

[0016] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: This utility model, by setting a main valve, can achieve basic precision control of the exhaust speed; by setting an exhaust component for automatic sensing and exhaust, it can meet the daily household water pipe exhaust needs and has a long service life and is not easily damaged; by setting a secondary valve, the gas flow rate can be precisely controlled. When the main valve is not activated or the main valve's exhaust speed cannot meet temporary exhaust needs, activating the secondary valve can effectively balance the gas pressure and avoid the formation of air resistance. Therefore, it maintains the low cost of mechanical control technology, solves the problems of limited precision and susceptibility to impurities in the structure used in traditional exhaust valves, and the problem of timely response to internal system changes, making it suitable for various situations requiring daily household water pipe exhaust. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 This is a schematic diagram of the first cross-section of the entire utility model;

[0019] Figure 3 This is a schematic diagram of the second cross-section of the entire utility model;

[0020] Figure 4 This is an enlarged schematic diagram of the main valve cross-section of this utility model;

[0021] Figure 5 This is a schematic diagram of the sealed and airtight state of this utility model;

[0022] Figure 6 This is a schematic diagram of the sealed plug in the open state of this utility model;

[0023] Figure 7 This is an enlarged schematic diagram of the cross-section of the auxiliary valve of this utility model;

[0024] Figure 8 This is a bottom view of the bottom surface of this utility model;

[0025] Figure 9 This is a schematic diagram of the adjustable exhaust component of this utility model;

[0026] Figure 10 This is a schematic cross-sectional view of the exhaust state of the adjustable exhaust component of this utility model;

[0027] Figure 11 This is a schematic cross-sectional view of the adjustable exhaust component in its closed state according to this utility model;

[0028] In the diagram: 1-Main valve, 11-Sealing cover one, 12-Sealing cover two, 13-Sealing plug, 14-Connector, 15-Fixing component; 2-Auxiliary valve, 21-Flow control component, 22-Flow control cap; 3-Valve body, 31-Exhaust component, 311-Rubber plug, 312-Fixing frame, 313-Float component, 32-Ventilation mesh, 33-Main exhaust port, 34-Main air outlet, 35-Spring, 36-Rubber ring, 37-Auxiliary exhaust port, 38-Auxiliary air outlet, 39-Sealing ring. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply.

[0030] This utility model provides an exhaust valve with controllable exhaust volume, see [link to relevant documentation]. Figures 1 to 11 The valve body 3 includes a main exhaust port 33 and a secondary exhaust port 37, which are circular. The main exhaust port 33 is fixedly connected to a main air outlet 34, and the secondary exhaust port 37 is fixedly connected to a secondary air outlet 38. The diameter of the main exhaust port 33 is greater than or equal to the diameter of the secondary exhaust port 37. The outer wall of the main air outlet 34 is threaded and threadedly connected to a main valve 1. The outer wall of the secondary air outlet 38 is threaded and threadedly connected to a secondary valve 2.

[0031] See Figures 2 to 4 The main valve 1 includes a first sealing cover 11 and a second sealing cover 12. The inner wall of the second sealing cover 12 is threaded and screwed into the outer wall of the main air outlet 34. Several connecting parts 14 are spaced apart circumferentially at the top of the second sealing cover 12. The connecting parts 14 are upward extensions of the main body of the second sealing cover 12 and are not connected to each other. The outer wall of the connecting parts 14 is threaded. The inner wall of the first sealing cover 11 is threaded and screwed into the outer wall of the connecting parts 14. A spring 35 is provided at the top of the valve body 3 surrounding the main air outlet 34. A rubber ring 36 is connected to the top of the spring 35. The inner ring of the rubber ring 36 is tightly fitted to the outer wall of the main air outlet 34, and the top of the rubber ring 36 is tightly fitted to the bottom of the second sealing cover 12.

[0032] See Figures 4 to 6 The upper end of the threaded inner wall of the sealing cover 12 is provided with a sealing plug 13. The sealing plug 13 is a number of fan-shaped pieces, and the arc edge of the fan-shaped pieces is connected to the inner wall of the sealing cover 12. The straight edges of the sealing plug 13 are connected to form a complete circle.

[0033] The connecting parts 14 are not connected to each other. The gas discharged from the main air outlet 34 is discharged through the gaps between the connecting parts 14. The top of the rubber ring 36 fits tightly against the bottom of the sealing cover 12 to enhance the sealing performance of the sealing cover 12. The opening and closing of the main valve 1 can be controlled by rotating the sealing cover 11. When the sealing cover 12 is rotated downwards, the upper end of the main air outlet 34 can push the sealing plug 13 upwards. See [reference needed]. Figure 6 Gas is discharged from the gap opened by the sealing plug 13. As the sealing cover 12 moves downwards, the gap of the sealing plug 13 becomes larger, thereby enabling basic control of the exhaust speed.

[0034] As a preferred method, an exhaust pipe is connected to the outside of the main valve 1, and a flow meter is installed on the exhaust pipe to accurately control the exhaust speed. Since this is existing technology, it will not be described in detail here.

[0035] See Figure 4 The sealing cap 11 has a fixing member 15 connected to its inner top end. The fixing member 15 is barrel-shaped and has one side flat surface connected to the inner top end of the sealing cap 11. The diameter of the circle formed by the fixing member 15 is less than or equal to the diameter of the circle formed by the connecting member 14. The fixing member 15 is a cylinder made of rubber sheet. The fixing member 15 can fix the sealing cap 11, making it stable in any position on the connecting member 14.

[0036] See Figures 8 to 11 The valve body 3 contains an exhaust component 31, which has a fixed frame 312 connected to the inner wall of the valve body 3. The exhaust component 31 is filled with air. The top of the exhaust component 31 is made of welded stainless steel, and the bottom is made of thermoplastic rubber. A float 313 is located at the center of the bottom of the exhaust component 31, and the float 313 is connected to the bottom of the exhaust component 31 through a thermoplastic rubber layer. The float 313 is fixed to the bottom of the exhaust component 31. The top of the exhaust component 31 is connected to a rubber plug 311, and the connection between the rubber plug 311 and the exhaust component 31 is made of thermoplastic rubber. The rubber plug 311 is located directly below the main exhaust port 33. There are gaps between the two sides of the exhaust component 31 and the inner wall of the valve body 3, and ventilation mesh 32 is provided in the gaps. Because the exhaust component 31 is internally sealed, the total amount of gas inside the exhaust component 31 remains constant. When the liquid inside the valve body 3 has not reached the exhaust component 31, the float 313 is in a drooping state, and the rubber plug 311 is also in a naturally relaxed state. When the liquid inside the valve body 3 reaches the bottom of the exhaust component 31 and exceeds it, the float 313 will rise with the liquid level, the air inside the exhaust component 31 will be compressed, and the rubber plug 311 will extend upward to block the main exhaust port 33, preventing liquid from flowing out of the main exhaust port 33. The connection between the rubber plug 311 and the exhaust component 31, as well as the bottom of the exhaust component 31, are made of thermoplastic rubber, which maintains good elasticity and ductility, has a long service life, and is not easily damaged.

[0037] See Figure 7The inner diameter of the secondary exhaust nozzle 38 is larger than the diameter of the secondary exhaust port 37. The secondary exhaust nozzle 38 is located on the periphery of the secondary exhaust port 37. The secondary valve 2 includes a flow control element 21 and a flow control cap 22. The flow control element 21 is a combination of a cylinder and a cone. The pointed end of the cone is placed downwards in the secondary exhaust port 37. The outer wall of the cylindrical part is threaded and screws into the inner wall of the secondary exhaust nozzle 38. The inner wall of the flow control cap 22 is threaded and screws into the outer wall of the cylindrical part of the flow control element 21. A sealing ring 39 is connected to the top of the secondary exhaust port 37. The flow control element 21 moves up and down by rotating the flow control cap 22. The height of the conical part of the flow control element 21 extending into the secondary exhaust port 37 and the change in the area of ​​the secondary exhaust port 37 blocked by the conical part control the exhaust speed of the secondary exhaust port 37. When the flow control element 21 moves to the bottom, it fits against the sealing ring 39, and the secondary valve 2 closes. The auxiliary valve 2 serves as a backup valve and can precisely control the gas flow rate. When the main valve 1 is not activated or the exhaust speed of the main valve 1 cannot meet the temporary exhaust requirements, activating the auxiliary valve 2 can effectively balance the gas pressure and prevent the formation of gas resistance.

[0038] In summary, this invention, by setting the main valve 1, can achieve basic precision control of the exhaust speed and automatically sense and exhaust the exhaust component 31, meeting the daily household water pipe venting needs. It also boasts a long service life and is not easily damaged. The auxiliary valve 2 allows for precise control of the gas flow rate. When the main valve 1 is not activated or its exhaust speed cannot meet temporary venting needs, activating the auxiliary valve 2 can effectively balance the gas pressure and prevent air resistance. Therefore, it maintains the low cost of mechanical control technology and solves the problems of limited precision, susceptibility to impurities, and timely response to internal system changes in traditional exhaust valves. It is suitable for various situations requiring venting of household water pipes.

[0039] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An exhaust valve with controllable exhaust volume, comprising a valve body (3), characterized in that, The valve body (3) has a circular main exhaust port (33) and a secondary exhaust port (37) at its top. The main exhaust port (33) is fixedly connected to a main air outlet (34), and the secondary exhaust port (37) is fixedly connected to a secondary air outlet (38). The diameter of the main exhaust port (33) is greater than or equal to the diameter of the secondary exhaust port (37). The outer wall of the main air outlet (34) is threaded and threadedly connected to a main valve (1). The outer wall of the secondary air outlet (38) is threaded and threadedly connected to a secondary valve (2).

2. The exhaust valve with controllable exhaust volume according to claim 1, characterized in that, The main valve (1) includes a sealing cover one (11) and a sealing cover two (12). The inner wall of the sealing cover two (12) is threaded and screwed into the outer wall of the main air outlet (34). The top of the sealing cover two (12) is provided with several connecting parts (14) spaced apart along the circumference. The outer wall of each connecting part (14) is threaded. The inner wall of the sealing cover one (11) is threaded and screwed into the outer wall of the connecting parts (14). The top of the valve body (3) surrounding the main air outlet (34) is provided with a spring (35). The top of the spring (35) is connected with a rubber ring (36). The inner ring of the rubber ring (36) is tightly fitted with the outer wall of the main air outlet (34). The top of the rubber ring (36) is tightly fitted with the bottom of the sealing cover two (12).

3. The exhaust valve with controllable exhaust volume according to claim 2, characterized in that, The upper end of the threaded inner wall of the sealing cover (12) is provided with a sealing plug (13). The sealing plug (13) consists of several fan-shaped pieces, and the arc edge of the fan-shaped pieces is connected to the inner wall of the sealing cover (12). The straight edges of the fan-shaped pieces of the sealing plug (13) are connected to form a complete circle.

4. The exhaust valve with controllable exhaust volume according to claim 2, characterized in that, The sealing cap (11) is connected to a fixing member (15) at its inner top end. The fixing member (15) is a cylindrical rubber sheet with one side plane connected to the inner top end of the sealing cap (11). The diameter of the circle formed by the fixing member (15) is less than or equal to the diameter of the circle formed by the connecting member (14).

5. The exhaust valve with controllable exhaust volume according to claim 1, characterized in that, The inner diameter of the secondary exhaust nozzle (38) is larger than the diameter of the secondary exhaust port (37). The secondary exhaust nozzle (38) is located on the periphery of the secondary exhaust port (37). The secondary valve (2) includes a flow control element (21) and a flow control cap (22). The flow control element (21) is a combination of a cylinder and a cone. The pointed end of the cone is placed downward in the secondary exhaust port (37). The outer wall of the cylindrical part is threaded and screwed into the inner wall of the secondary exhaust nozzle (38). The inner wall of the flow control cap (22) is threaded and screwed into the outer wall of the cylindrical part of the flow control element (21).

6. The exhaust valve with controllable exhaust volume according to claim 5, characterized in that, A sealing ring (39) is connected to the top of the secondary exhaust port (37).

7. The exhaust valve with controllable exhaust volume according to claim 4, characterized in that, The valve body (3) is provided with an exhaust component (31) inside. The exhaust component (31) is provided with a fixed frame (312) and the fixed frame (312) is connected to the inner wall of the valve body (3). The exhaust component (31) is filled with air. The top of the exhaust component (31) is made of stainless steel welded. The bottom center of the exhaust component (31) is provided with a float (313). The bottom end of the float (313) is connected to the exhaust component (31) by a thermoplastic rubber layer. The float (313) is fixed to the bottom of the exhaust component (31). The top of the exhaust component (31) is connected to a rubber plug (311). The connection part between the rubber plug (311) and the exhaust component (31) is a thermoplastic rubber connection layer. The rubber plug (311) is located directly below the main exhaust port (33).

8. The exhaust valve with controllable exhaust volume according to claim 7, characterized in that, There is a gap between the two sides of the exhaust component (31) and the inner wall of the valve body (3), and a ventilation mesh (32) is provided in the gap.

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