Universal type exhaust valve of water distributing and collecting device and assembling method of universal type exhaust valve

Abstract

The invention relates to the technical field of exhaust valves, in particular to a universal type exhaust valve of a water distributing and collecting device and an assembly method of the universal type exhaust valve of the water distributing and collecting device, and the universal type exhaust valve of the water distributing and collecting device and the assembly method of the universal type exhaust valve of the water distributing and collecting device relate to the technical field of exhaust valves. The device can be adapted to the upper interfaces and the tail end interfaces of the main pipes of most different brands and different models of water distribution and collection devices in the market, and covers common thread specifications and installation directions. The universality of the exhaust valve is effectively improved, an installation and construction unit does not need to purchase the exhaust valve independently for different sub-catchment devices, the purchase process is simplified, and the purchase cost and the risk of purchase errors are reduced. Meanwhile, for manufacturers, exhaust valves of various specifications do not need to be produced, only two core components of the exhaust valve body and the base need to be produced, most market requirements are met, production management cost and inventory pressure are effectively reduced, and production efficiency and market competitiveness are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of exhaust valves, in particular, and more particularly, to a universal water distribution valve and an assembling method thereof. BACKGROUND

[0002] In modern construction engineering, heating, ventilation and air conditioning systems and water circulation systems have become an integral part of the system, and the water distribution valve as a key component of the system plays an important role in distributing and collecting water flow. In the heating or central air conditioning system, the water distribution valve is the key component to realize water flow distribution and collection, and the stability of its working state is directly related to the operation efficiency and use experience of the whole system. However, in the operation process of the water circulation pipeline, gas accumulation is a common problem that is difficult to avoid. These gases mainly come from the release of dissolved gases in water, residual air in the pipeline installation process, and gases brought in during system water replenishment. When the gas accumulates in the pipeline to a certain extent, it will form air resistance, hinder the normal circulation of water flow, cause uneven heat dissipation of the system, and reduce the cooling or heating effect, and also increase the operating load of the water pump, causing waste of energy. In addition, the gas flowing in the pipeline or colliding with the pipe wall will also produce obvious noise, affecting the comfort of the indoor environment. As the core component to solve this problem, the performance of the exhaust valve directly affects the stable operation and use effect of the whole heating, ventilation and air conditioning and water circulation system.

[0003] In order to solve the above problems, the industry generally adopts the way of installing an exhaust valve at the highest point or tail end of the water distribution valve to timely discharge the accumulated gas in the pipeline. At present, the existing water distribution valve on the market is mainly designed as an integrated type or a special interface. The structure of the integrated exhaust valve is fixed, and its interface specifications and installation methods are single, which can only adapt to specific brands and specific models of water distribution valves. Although the exhaust valve with a special interface design is optimized for a specific type of water distribution valve to a certain extent, it also lacks universality.

[0004] With the rapid development of the heating, ventilation and air conditioning industry, there are many brands of distribution water separators on the market. Different brands and different models of distribution water separators have great differences in the thread specifications (such as M10, G1 / 4, G1 / 2, etc.) of the exhaust interface and the interface direction (lateral, vertical), which leads to many drawbacks of the existing exhaust valve in actual application. On the one hand, for the installation and construction unit, it is necessary to specially select and purchase the corresponding exhaust valve according to the model of the distribution water separator used in different projects, which not only increases the complexity of the procurement link, but also causes the exhaust valve to be unable to be normally installed and used due to procurement errors, affecting the construction progress. On the other hand, for the manufacturer, it is necessary to produce exhaust valves of multiple specifications and multiple interface types to meet market demand, which undoubtedly increases the production management cost and inventory pressure. At the same time, due to the poor universality of the exhaust valve, when the system is maintained or the exhaust valve is replaced, it is also necessary to find a completely matched product, which brings great inconvenience to the user.

[0005] In addition, the exhaust port of the existing exhaust valve is of fixed design, and the direction of the exhaust port cannot be adjusted. In actual installation scenarios, due to the influence of factors such as building structure and decoration layout, the installation space is often limited. For example, when the distribution water separator is installed near the wall or other obstacles, the exhaust port of fixed direction cannot be smoothly connected with the hose, leading to poor exhaust; or the exhaust port is directed to the area where indoor personnel frequently move, and hot gas is easily caused to burn personnel when it is discharged, which has certain safety hazards.

[0006] In view of the above, there is an urgent need for a universal distribution water separator exhaust valve to solve the above problems. SUMMARY

[0007] In view of the deficiencies of the prior art, the present application provides a universal distribution water separator exhaust valve, which solves the technical problems of the fixed structure of the existing exhaust valve, the lack of universality, the fixed design of the exhaust port, the inability to adjust the direction of the exhaust port, the limited installation space, and the existence of certain safety hazards when hot gas is discharged and causes personnel burns in the area where indoor personnel frequently move.

[0008] To achieve the above purpose, in a first aspect, the present application provides a universal distribution water separator exhaust valve, comprising an exhaust valve body, a mounting seat and a fixing seat; one side of the exhaust valve body is fixedly installed with an exhaust pipe; the mounting seat and the fixing seat are fixedly connected for fixing the exhaust valve body, and the exhaust valve body rotates along the axial direction outside the mounting seat.

[0009] The exhaust valve body, the mounting seat and the fixing seat are arranged in a circular ring structure, the mounting seat and the fixing seat are inserted into the hollow structure of the exhaust valve body, the mounting seat is installed at the bottom of the exhaust valve body, and the fixing seat is installed at the top of the exhaust valve body.

[0010] The outer wall at the bottom of the fixing seat is provided with a second external thread.

[0011] The top of the mounting base is provided with a first hollow tube, and an exhaust hole is provided on the side wall of the middle part of the first hollow tube.

[0012] The inner wall of the first hollow tube is provided with a first internal thread, which engages with the second external thread, so that the top of the first hollow tube abuts against the bottom of the fixed seat to fix the exhaust valve body.

[0013] A second hollow tube is fixedly connected to the lower part of the first hollow tube. An installation block is fixedly connected to the outer wall of the second hollow tube near the first hollow tube. A first external thread is provided on the outer wall of the second hollow tube away from the first hollow tube.

[0014] A valve stem is movably installed inside the fixed base. A valve core is provided at the bottom of the valve stem. An annular groove is provided above the valve core. A sealing gasket is engaged in the annular groove. A third external thread is provided on the outer wall of the valve stem near the annular groove. The third external thread engages with the first internal thread.

[0015] An exhaust valve handwheel is fixedly connected to the top of the valve stem. The outer wall of the exhaust valve handwheel has a rough surface. A slot is fixedly installed inside the exhaust valve handwheel, and the valve stem is engaged inside the slot. An installation groove is provided at the top of the slot, and an installation cover is provided at the top of the exhaust valve handwheel.

[0016] In a preferred embodiment of the present invention, the universal manifold vent valve further includes a sealing structure, which includes a second sealing ring, a third sealing ring, and a fourth sealing ring; the third and fourth sealing rings are installed between the vent valve body and the mounting base, and the second sealing ring is installed on the outer wall of the second hollow tube and disposed between the mounting block and the first external thread.

[0017] In a preferred embodiment of the present invention, the universal manifold vent valve further includes a base, which is fixedly installed at the bottom of the mounting base; the base includes a base body, which is a ring structure, and a second internal thread is installed on the inner wall of the top of the base body. The second internal thread engages with the first external thread to achieve fixed installation of the base.

[0018] In a preferred embodiment of the present invention, a mounting tube is fixedly connected to the end of the base body away from the mounting seat, and the outer wall of the mounting tube is provided with a fourth external thread.

[0019] In a preferred embodiment of the present invention, an annular boss is fixedly connected to the outer wall of the mounting tube near one end of the base body.

[0020] In a preferred embodiment of the present invention, an array of first sealing rings is provided between the valve stem and the fixed seat.

[0021] In a preferred embodiment of the present invention, the fixing base and the mounting block are hexagonal prism structures, which facilitate the use of tools to engage them.

[0022] In a preferred embodiment of the present invention, a connector is provided on the outer wall of the end of the exhaust pipe away from the exhaust valve body, and the connector can be connected to an external pipeline.

[0023] In a preferred embodiment of the present invention, the fourth external thread is fitted with the first external thread to a different size of the exhaust port thread specification.

[0024] In a preferred embodiment of the present invention, the exhaust valve is made of stainless steel.

[0025] In a preferred embodiment of the present invention, the sealing structure and the first sealing ring are made of high-temperature resistant and aging-resistant rubber material.

[0026] Secondly, the present invention provides a method for assembling a universal manifold air vent valve to adapt to different installation scenarios: including assembling the air vent valve separately and assembling the air vent valve in combination with the base;

[0027] When the main pipe of the manifold has an internal thread interface, an air vent valve is assembled separately. The first external thread of the mounting base is directly connected to this interface. By rotating the mounting base, the first external thread is brought into close contact with the manifold interface, and a seal is achieved using the second sealing ring between the first external thread and the manifold interface. After assembly, rotating the air vent valve handwheel opens the air vent, enabling the air release function.

[0028] When the air vent valve needs to be installed at the end of the main water pipe of the manifold, it is assembled with the base. First, connect the fourth external thread of the base to the corresponding interface at the end of the main water pipe of the manifold, ensuring that the base is firmly installed and well-sealed. Then, connect the first external thread of the mounting base to the second internal thread of the base connection end, and rotate the mounting base to make the two fit tightly, and use the second sealing ring to achieve a seal. After the assembly is completed, the air vent is opened and closed by rotating the handwheel of the air vent valve. The gas in the pipeline passes through the base flow channel and the internal flow channel of the air vent valve in sequence, and is discharged from the 360° rotating air vent.

[0029] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0030] 1. This invention presents a universal manifold air vent valve and its assembly method. By offering two assembly methods—separate installation of the air vent valve and assembly of the air vent valve with its base—and utilizing the first external thread of the mounting base and the fourth external thread of the base, it can adapt to the main pipe and tail end interfaces of most different brands and models of manifolds on the market, covering common thread specifications and installation directions. This effectively improves the versatility of the air vent valve, eliminating the need for installation units to purchase air vent valves separately for different manifolds, simplifying the procurement process, reducing procurement costs, and lowering the risk of procurement errors. Simultaneously, for manufacturers, there is no need to produce multiple specifications of air vent valves; only the air vent valve body and base are needed, thus covering most market demands, effectively reducing production management costs and inventory pressure, and improving production efficiency and market competitiveness.

[0031] 2. The present invention presents a universal manifold vent valve and its assembly method. By providing two assembly methods, namely, installing the vent valve separately and assembling the vent valve with the base, the installation is flexible and convenient. It provides users with more installation options, allowing them to flexibly choose to assemble separately or in combination according to the installation location and interface type of the manifold, adapting to different installation scenarios.

[0032] 3. The universal manifold vent valve and its assembly method disclosed in this invention allow the vent valve body to rotate 360° axially outside the mounting base. Users can adjust the orientation of the vent according to the actual usage scenario and personnel activity. In situations with limited installation space, the vent can be rotated to an unobstructed direction to ensure smooth venting; in areas with frequent personnel activity, the vent can be rotated to a safe direction to prevent burns from hot air. This completely solves the safety hazards of existing fixed vent valves and improves safety and reliability during use.

[0033] 4. The universal manifold vent valve and its assembly method presented in this invention employ a detachable assembly method between the vent valve and the base, achieving a robust connection through a standardized connection structure. This ensures both the sealing and stability of the connection while facilitating installation, disassembly, and maintenance. Furthermore, the modular design allows for flexible installation of the vent valve body alone or in combination with the base, depending on the specific application scenario. This adapts to manifolds with different installation locations and interface types, making it widely applicable in water circulation systems such as heating systems and central air conditioning systems in residential, commercial, and industrial plants. It provides efficient and reliable venting solutions for different models and specifications of manifolds, demonstrating extremely broad application prospects. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural schematic diagram of a universal manifold vent valve according to the present invention;

[0035] Figure 2 This is a front view schematic diagram of the structure of a universal manifold vent valve according to the present invention;

[0036] Figure 3 This is a front view structural diagram (without base) of a universal manifold vent valve according to the present invention.

[0037] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure;

[0038] Figure 5 This is a three-dimensional structural diagram of the mounting base in a universal manifold vent valve according to the present invention;

[0039] Figure 6 This is a schematic diagram illustrating the usage state of an embodiment of the universal manifold air vent valve of the present invention;

[0040] Figure 7 This is a schematic diagram showing the usage state of another embodiment of the universal manifold vent valve of the present invention.

[0041] In the diagram: 1. Exhaust valve; 11. Exhaust valve body; 12. Exhaust valve handwheel; 121. Rough area; 122. Slot; 123. Mounting cover; 124. Mounting groove; 13. Mounting base; 131. First hollow tube; 132. First internal thread; 133. Mounting block; 134. First external thread; 135. Second hollow tube; 136. Exhaust hole; 14. Exhaust pipe; 141. Connector; 15. Sealing gasket; 16. Fixture 1. Fixed seat; 161. Second external thread; 17. Valve stem; 171. First sealing ring; 172. Third external thread; 173. Valve core; 174. Annular groove; 18. Sealing structure; 181. Second sealing ring; 182. Third sealing ring; 183. Fourth sealing ring; 2. Base; 21. Base body; 22. Annular boss; 23. Fourth external thread; 24. Second internal thread; 25. Mounting pipe; 3. Main pipe of water distribution manifold. Detailed Implementation

[0042] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0043] Example 1:

[0044] Please see Figures 1-6 When in use, the air vent valve 1 is assembled separately and installed separately at the interface above the main water pipe 3 of the manifold.

[0045] First, prepare the exhaust valve 1 of this invention, which is made of stainless steel; to achieve 360° rotation of the exhaust valve body 11 along the axial direction, as follows: Figure 4 As shown, the exhaust valve body 11, mounting base 13 and fixing base 16 are configured as a ring structure. The mounting base 13 and the fixing base 16 are inserted into the hollow structure of the exhaust valve body 11. The mounting base 13 is installed at the bottom of the exhaust valve body 11 and the fixing base 16 is installed at the top of the exhaust valve body 11 to fix both ends of the exhaust valve body 11.

[0046] like Figure 3 As shown, an exhaust pipe 14 is fixedly installed on one side of the exhaust valve body 11; a connector 141 is provided on the outer wall of the end of the exhaust pipe 14 away from the exhaust valve body 11; the exhaust valve body 11 can rotate 360° axially, thereby driving the exhaust pipe 14 to rotate 360°, allowing the user to adjust the orientation of the exhaust port arbitrarily according to the actual usage scenario and personnel activity. In situations where installation space is limited, the exhaust port can be rotated to an unobstructed direction to ensure smooth exhaust; in areas with frequent personnel activity, the exhaust port can be rotated to a safe direction to avoid burns caused by hot air exhaust, completely solving the safety hazards of existing fixed exhaust port exhaust valves and improving safety and reliability during use.

[0047] To achieve modular design and optimize loading and unloading procedures, such as Figure 4 As shown, a second external thread 161 is provided on the outer wall of the bottom of the fixing seat 16.

[0048] like Figure 5 As shown, a first hollow tube 131 is provided on the top of the mounting base 13, and an exhaust hole 136 is provided on the side wall of the middle part of the first hollow tube 131. A first internal thread 132 is provided on the inner wall of the first hollow tube 131, and the first internal thread 132 engages with a second external thread 161, so that the top of the first hollow tube 131 abuts against the bottom of the fixing base 16 to fix the exhaust valve body 11. A second hollow tube 135 is fixedly connected to the bottom of the first hollow tube 131. A mounting block 133 is fixedly connected to the outer wall of the second hollow tube 135 near the first hollow tube 131, and a first external thread 134 is provided on the outer wall of the second hollow tube 135 away from the first hollow tube 131.

[0049] like Figure 4As shown, a valve stem 17 is movably installed inside the fixed base 16. A valve core 173 is provided at the bottom of the valve stem 17, and an annular groove 174 is provided above the valve core 173. A sealing gasket 15 is engaged in the annular groove 174. A third external thread 172 is provided on the outer wall of the valve stem 17 near the annular groove 174. The third external thread 172 meshes with the first internal thread 132. An array of first sealing rings 171, made of high-temperature resistant and aging-resistant rubber, is provided between the valve stem 17 and the fixed base 16.

[0050] like Figure 1 As shown, an exhaust valve handwheel 12 is fixedly connected to the top of the valve stem 17, and the outer wall of the exhaust valve handwheel 12 is provided with a rough part 121 for easy operation;

[0051] like Figure 4 As shown, a slot 122 is fixedly installed inside the exhaust valve handwheel 12, and a valve stem 17 is engaged inside the slot 122; an installation groove 124 is provided at the top of the slot 122, and an installation cover 123 is provided at the top of the exhaust valve handwheel 12.

[0052] like Figure 4 As shown, a third sealing ring 182 and a fourth sealing ring 183 are installed between the exhaust valve body 11 and the mounting base 13, and a second sealing ring 181 is installed on the outer wall of the second hollow tube 135. The second sealing ring 181 is disposed between the mounting block 133 and the first external thread 134. The second sealing ring 181, the third sealing ring 182 and the fourth sealing ring 183 are made of high temperature resistant and aging resistant rubber material.

[0053] To improve loading and unloading efficiency, such as Figure 3 As shown, the fixing base 16 and the mounting block 133 are hexagonal prism structures, which facilitates the use of tools to engage them.

[0054] In use, the main water pipe 3 of the manifold has an internal thread interface. The first external thread 134 of the mounting base 13 is directly connected to this interface. By rotating the mounting base 13, the first external thread 134 is tightly fitted with the interface of the main water pipe 3, and a seal is achieved by the second sealing ring 181 between the first external thread 134 and the interface of the main water pipe 3. After assembly, rotating the vent valve handwheel 12 opens the vent port to achieve the venting function.

[0055] Example 2:

[0056] Please see Figures 1-5 as well as Figure 7 When in use, the air vent valve and the base are assembled together. When the air vent valve 1 is installed at the tail end interface of the main water pipe 3 of the manifold.

[0057] Unlike the general-purpose manifold vent valve described in Example 1, such as Figure 4 As shown, the universal manifold vent valve also includes a base 2, which is fixedly installed at the bottom of the mounting base 13. The base 2 includes a base body 21, which is a ring structure. A second internal thread 24 is installed on the inner wall of the top of the base body 21. The second internal thread 24 engages with the first external thread 134 to achieve the fixed installation of the base 2. An installation tube 25 is fixedly connected to the end of the base body 21 away from the mounting base 13. A fourth external thread 23 is provided on the outer wall of the installation tube 25. An annular boss 22 is fixedly connected to the outer wall of the installation tube 25 near the end of the base body 21.

[0058] When in use, first connect the fourth external thread 23 of the base 2 to the corresponding interface at the tail end of the main water pipe 3 of the manifold, ensuring that the base 2 is firmly installed and well-sealed; then connect the first external thread 134 of the mounting seat 13 to the second internal thread 24 of the connecting end of the base 2, and similarly, rotate the mounting seat 13 to make the two fit tightly, and use the second sealing ring 181 to achieve a seal. After the assembly is completed, control the opening and closing of the exhaust port by rotating the exhaust valve handwheel 12. The gas in the pipeline passes through the flow channel of the base 2 and the internal flow channel of the exhaust valve body 11 in sequence, and is discharged from the 360° rotating exhaust port.

[0059] The technical principle of this invention lies in its two assembly methods: separate installation of the exhaust valve and assembly of the exhaust valve with the base. Combined with the first external thread 134 of the mounting base 13 and the fourth external thread 23 of the base 2, it can adapt to the main pipe upper interface and tail end interface of most different brands and models of manifolds on the market, covering common thread specifications and installation directions. Simultaneously, the exhaust valve body 11 can rotate 360° axially outside the mounting base 13, allowing the user to adjust the orientation of the exhaust port arbitrarily according to the actual usage scenario and personnel activity. In situations with limited installation space, the exhaust port can be rotated to an unobstructed direction to ensure smooth exhaust; in areas with frequent personnel activity, the exhaust port can be rotated to a safe direction to avoid burns from hot air exhaust. This completely solves the safety hazards of existing fixed exhaust port exhaust valves, improving safety and reliability during use.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A universal manifold vent valve, characterized in that, It includes an exhaust valve body (11), a mounting base (13) and a fixing base (16); an exhaust pipe (14) is fixedly installed on one side of the exhaust valve body (11); the mounting base (13) and the fixing base (16) are fixedly connected to fix the exhaust valve body (11), and the exhaust valve body (11) rotates axially outside the mounting base (13).

2. The universal manifold vent valve according to claim 1, characterized in that: The exhaust valve body (11), mounting base (13) and fixing base (16) are configured as a ring structure. The mounting base (13) and the fixing base (16) are inserted into the hollow structure of the exhaust valve body (11). The mounting base (13) is installed at the bottom of the exhaust valve body (11) and the fixing base (16) is installed at the top of the exhaust valve body (11).

3. A universal manifold vent valve according to claim 2, characterized in that: The top of the mounting base (13) is provided with a first hollow tube (131), and an exhaust hole (136) is provided on the side wall of the middle part of the first hollow tube (131).

4. A universal manifold vent valve according to claim 3, characterized in that: A second hollow tube (135) is fixedly connected to the lower part of the first hollow tube (131). An installation block (133) is fixedly connected to the outer wall of the second hollow tube (135) near the first hollow tube (131). A first external thread (134) is provided on the outer wall of the second hollow tube (135) away from the first hollow tube (131).

5. A universal manifold vent valve according to claim 4, characterized in that: The universal manifold exhaust valve also includes a sealing structure (18), which includes a second sealing ring (181); the second sealing ring (181) is installed on the outer wall of the second hollow tube (135) and is located between the mounting block (133) and the first external thread (134).

6. A universal manifold vent valve according to claim 3, characterized in that: The outer wall of the bottom of the fixing seat (16) is provided with a second external thread (161); the inner wall of the first hollow tube (131) is provided with a first internal thread (132), the first internal thread (132) meshes with the second external thread (161), so that the top of the first hollow tube (131) abuts against the bottom of the fixing seat (16) to fix the exhaust valve body (11).

7. A universal manifold vent valve according to claim 6, characterized in that: A valve stem (17) is movably installed inside the fixed base (16). A valve core (173) is provided at the bottom of the valve stem (17). An annular groove (174) is provided above the valve core (173). A sealing gasket (15) is engaged in the annular groove (174). A third external thread (172) is provided on the outer wall of the valve stem (17) near the annular groove (174). The third external thread (172) meshes with the first internal thread (132).

8. A universal manifold vent valve according to any one of claims 4-7, characterized in that: The universal manifold exhaust valve also includes a base (2), which is fixedly installed at the bottom of the mounting base (13); the base (2) includes a base body (21), which is a ring structure, and the inner wall of the top of the base body (21) is provided with a second internal thread (24); the end of the base body (21) away from the mounting base (13) is fixedly connected to an installation pipe (25), and the outer wall of the installation pipe (25) is provided with a fourth external thread (23).

9. An assembly method for a universal manifold vent valve, using the universal manifold vent valve as described in any one of claims 4-7, specifically implemented as follows: the vent valve (1) is assembled separately, the vent valve (1) is installed on the internal thread interface provided above the main pipe (3) of the manifold, the first external thread (134) of the mounting seat (13) is directly connected to the interface, and by rotating the mounting seat (13), the first external thread (134) is tightly fitted to the interface of the main pipe (3) of the manifold, and at the same time, the second sealing ring (181) between the first external thread (134) and the interface of the main pipe (3) of the manifold is used to achieve sealing.

10. An assembly method for a universal manifold vent valve, using the universal manifold vent valve as described in claim 8: The specific implementation method is as follows: the vent valve (1) and the base (2) are assembled together. When the vent valve (1) is installed at the end interface of the manifold main pipe (3), the fourth external thread (23) of the base (2) is first connected to the corresponding interface at the end of the manifold main pipe (3); then the first external thread (134) of the mounting seat (13) is connected to the second internal thread (24) of the connection end of the base (2). Similarly, the first external thread (134) and the second internal thread (24) are tightly fitted by rotating the mounting seat (13), and the second sealing ring (181) is used to achieve sealing.

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