An exhaust valve that is easy to install

Abstract

The utility model belongs to exhaust valve field discloses a kind of exhaust valves convenient to install, including working cylinder, the working cylinder is connected with connecting pipe and exhaust pipe, the working cylinder inner wall is connected with shaft, the shaft rotation is connected with swing arm, the swing arm is connected with slide cylinder and air bag, the exhaust pipe is equipped with exhaust hole, the exhaust pipe inner wall is slidably connected with piston, the piston is connected with connecting rod, the slide cylinder is slidably connected with connecting rod, the connecting rod is connected with two limit rings, the working cylinder inner wall is slidably connected with float plate, the float plate is equipped with several water-blocking structures. The scheme is combined by mechanical linkage structure and gas-liquid separation water-blocking design, avoids relying on elastic element, and realizes the high reliability operation of exhaust valve long-term maintenance-free.

Description

Technical Field

[0001] This utility model relates to the field of exhaust valves, and in particular to an exhaust valve that is easy to install. Background Technology

[0002] An air release valve is an automatic valve used in fluid piping systems. Its main function is to remove accumulated air or other gases from the pipeline to ensure efficient and stable system operation. When gas is present in the pipeline, it creates air resistance, affecting media flow, reducing transmission efficiency, and even causing equipment cavitation or damage. Air release valves are typically installed at high points in the system and utilize mechanisms such as floats or levers to automatically open and release gas when it accumulates. After the gas is released, it automatically closes under the buoyancy of the liquid, preventing media leakage. It is crucial for protecting the safety and energy efficiency of water supply, heating, and industrial piping systems.

[0003] However, through exploration, the inventors have discovered that the existing technical solutions still have at least the following defects: Existing technologies often employ elastic components to control the opening and closing of vents. However, during long-term use, these elastic components are prone to material fatigue due to continuous compression and recovery, leading to a gradual decline in their sealing performance and even failure. This manifests as valves not closing tightly, causing leaks, or difficulty opening and slow response when venting is required. This not only reduces the system's efficiency and stability but may also cause air resistance, pressure fluctuations, and even water hammer risks due to the inability to expel gas in a timely manner, severely limiting the equipment's lifespan and reliability. Utility Model Content

[0004] The present invention aims to provide an easy-to-install exhaust valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An easy-to-install exhaust valve includes a working cylinder connected to a connecting pipe and an exhaust pipe. A rotating shaft is connected to the inner wall of the working cylinder, and a swing arm is rotatably connected to the rotating shaft. The swing arm is connected to a sliding cylinder and an air bladder. The exhaust pipe has an exhaust hole. A piston is slidably connected to the inner wall of the exhaust pipe. The piston is connected to a connecting rod. The sliding cylinder is slidably connected to the connecting rod. The connecting rod is connected to two limiting rings. A float plate is slidably connected to the inner wall of the working cylinder. The float plate has several water-blocking structures.

[0006] Preferably, the water-blocking structure includes a float, the float plate has a plurality of water-blocking holes, the inner wall of the water-blocking holes is connected to a first water-blocking ring and a second water-blocking ring, and the float is placed between the first water-blocking ring and the second water-blocking ring.

[0007] Preferably, the second water-blocking ring has a plurality of return water holes.

[0008] Preferably, a water-blocking membrane is connected to the inner wall of the water-blocking hole.

[0009] Preferably, the inner diameter of the first and second water-blocking rings is smaller than the diameter of the float.

[0010] Preferably, a dustproof net is connected to the inner wall of the exhaust pipe.

[0011] Preferably, the connecting pipe has a threaded portion and an insertion portion.

[0012] Preferably, the working cylinder is connected to a sealing ring.

[0013] The beneficial effects of this technical solution compared to existing technologies are as follows: (1) This utility model achieves mechanical exhaust control of non-elastic components through the cooperation of a float plate, a swing arm, a slide cylinder, and a connecting rod. When the water level in the working cylinder changes, the float plate rises and falls accordingly, and drives the swing arm to rotate around the pivot, thereby driving the slide cylinder to drive the connecting rod and piston to move, thus controlling the opening and closing of the exhaust port. This transmission mechanism avoids the reliance on elastic components in traditional solutions, eliminates the problem of sealing failure or slow response caused by material fatigue, and significantly improves the working reliability and service life of the exhaust valve in long-term use.

[0014] (2) This utility model achieves efficient gas-liquid separation and unidirectional exhaust function through the water-blocking structure set on the float plate. The structure places the float between two water-blocking rings. When gas flows through the water-blocking holes, it can easily push the float aside and pass through smoothly; when the liquid level rises, the float tightly fits the first water-blocking ring under the action of buoyancy and water flow, forming a reliable seal and effectively preventing liquid from leaking from the exhaust pipe. This ensures that only gas can be discharged, while the liquid is reliably intercepted, improving the purity of the exhaust operation and the media retention rate of the entire system. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 A longitudinal sectional view of the working cylinder provided for this utility model; Figure 3 Provided by this utility model Figure 2 Enlarged view of point A in the middle; Reference numerals: 1. Working cylinder; 2. Connecting pipe; 3. Threaded part; 4. Insertion part; 5. Exhaust pipe; 6. Dustproof net; 7. Exhaust hole; 8. Piston; 9. Connecting rod; 10. Swing arm; 11. Slide cylinder; 12. Limiting ring; 13. Airbag; 14. Rotating shaft; 15. Float plate; 16. Water blocking hole; 17. First water blocking ring; 18. Second water blocking ring; 19. Return water hole; 20. Float ball; 21. Water blocking membrane; 22. Sealing ring. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: like Figures 1 to 3 The exhaust valve shown includes a working cylinder 1, such as... Figure 1 As shown, a connecting pipe 2 is connected to the bottom of the working cylinder 1, and an exhaust pipe 5 is connected to the top side wall of the working cylinder 1. Figure 2 As shown, a rotating shaft 14 is connected to the inner wall of the working cylinder 1. A swing arm 10 is rotatably connected to the rotating shaft 14. A slide cylinder 11 and an air bladder 13 are connected to both ends of the swing arm 10, with the air bladder 13 located below the slide cylinder 11. An exhaust port 7 is provided on the portion of the exhaust pipe 5 located within the inner cavity of the working cylinder 1. A piston 8 is slidably connected to the inner wall of the exhaust pipe 5, and a connecting rod 9 is connected to the right side wall of the piston 8. The slide cylinder 11 is slidably connected to the connecting rod 9, and limit rings 12 are connected to both sides of the connecting rod 9 on the slide cylinder 11. A float plate 15 is slidably connected to the inner wall of the working cylinder 1. The float plate 15 has several water-blocking structures that only allow gas to pass through. When gas accumulates inside the working cylinder 1, the liquid level drops, and the float plate 15 drops accordingly. The swing arm 10 pulls the connecting rod 9 and the piston 8 to the right, opening the exhaust port 7 to release gas. When the gas is exhausted and liquid enters, the float plate 15 rises under buoyancy, pushing the piston 8 to the left via the swing arm 10 to close the exhaust port 7, preventing liquid leakage.

[0017] like Figure 3 As shown, the water-blocking structure includes a float 20, and a float plate 15 with several water-blocking holes 16. A first water-blocking ring 17 and a second water-blocking ring 18 are connected to the inner wall of each water-blocking hole 16. The first water-blocking ring 17 is located above the second water-blocking ring 18, and the float 20 is positioned between the first water-blocking ring 17 and the second water-blocking ring 18. When gas flows through, it can easily push open the float 20 to discharge; when liquid attempts to pass through, the float 20 rises under buoyancy and seals the first water-blocking ring 17, effectively preventing liquid leakage.

[0018] like Figure 3 As shown, the second water-blocking ring 18 has several return water holes 19 to ensure that the liquid can flow back smoothly and avoid forming air lock.

[0019] like Figure 3 As shown, a water-blocking membrane 21 is connected to the inner wall of the top of the water-blocking hole 16. This structure further enhances the function of allowing only gas to pass through; gas can permeate the water-blocking membrane 21, while liquid is effectively blocked.

[0020] like Figure 3 As shown, the inner diameters of the first water-blocking ring 17 and the second water-blocking ring 18 are both smaller than the diameter of the float 20. This design ensures that the float 20 can form an effective seal with the water-blocking ring to prevent liquid from passing through.

[0021] like Figure 1As shown, the inner wall of the exhaust pipe 5 is connected to a dustproof net 6, which can prevent external dust and foreign objects from entering the valve body.

[0022] like Figure 1 As shown, the connecting pipe 2 has a threaded part 3 and an insertion part 4, with the threaded part 3 located above the insertion part 4. This allows the exhaust valve to be quickly installed via a threaded connection, improving installation convenience and applicability.

[0023] like Figure 2 As shown, a sealing ring 22 is connected to the bottom of the working cylinder 1, which ensures the sealing performance at the connection between the valve body and the pipeline and prevents media leakage.

[0024] The specific implementation process is as follows: The vent valve is connected to the piping system via the threaded portion 3 of the connecting pipe 2, and the sealing ring 22 ensures a tight seal. When gas enters the working cylinder 1 and accumulates at the top, the liquid level drops, causing the float 15 to sink. This drives the swing arm 10 to rotate clockwise around the shaft 14, pulling the connecting rod 9 and piston 8 to the right via the slide cylinder 11, thereby opening the vent hole 7 to release gas. During this process, the gas can smoothly pass through the water-blocking structure on the float 15—the gas pushes open the float ball 20 in the water-blocking hole 16, penetrates the water-blocking membrane 21, and is discharged through the vent hole 7, while the dustproof net 6 prevents external contaminants from entering. When the gas is exhausted and liquid rushes in, the float 15, under the action of buoyancy... The upward movement pushes the swing arm 10 to rotate counterclockwise, which in turn pushes the connecting rod 9 and piston 8 to the left through the slide cylinder 11 to close the exhaust port 7. If liquid comes into contact with the water-blocking structure at this time, the float 20 will immediately float up to seal the first water-blocking ring 17. At the same time, the return water hole 19 on the second water-blocking ring 18 allows a small amount of residual liquid to flow back, thereby effectively preventing liquid from entering the exhaust pipe. The airbag 13 plays a buffering role during the movement of the float plate, and the limiting ring 12 ensures that the connection between the connecting rod 9 and the slide cylinder 11 will not be dislodged. The airbag 13 and the water-blocking membrane 21 are both redundant designs to ensure the normal operation of the system. The entire mechanism achieves a reliable and maintenance-free automatic exhaust function through pure mechanical linkage.

[0025] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An easy-to-install exhaust valve, characterized in that: The device includes a working cylinder (1), which is connected to a connecting pipe (2) and an exhaust pipe (5). A rotating shaft (14) is connected to the inner wall of the working cylinder (1). The rotating shaft (14) is rotatably connected to a swing arm (10). The swing arm (10) is connected to a sliding cylinder (11) and an airbag (13). The exhaust pipe (5) has an exhaust hole (7). A piston (8) is slidably connected to the inner wall of the exhaust pipe (5). The piston (8) is connected to a connecting rod (9). The sliding cylinder (11) is slidably connected to the connecting rod (9). The connecting rod (9) is connected to two limiting rings (12). A float plate (15) is slidably connected to the inner wall of the working cylinder (1). The float plate (15) is provided with several water-blocking structures.

2. The easy-to-install exhaust valve as described in claim 1, characterized in that: The water-blocking structure includes a float (20), and the float plate (15) has a plurality of water-blocking holes (16). The inner wall of the water-blocking holes (16) is connected to a first water-blocking ring (17) and a second water-blocking ring (18). The float (20) is placed between the first water-blocking ring (17) and the second water-blocking ring (18).

3. The easy-to-install exhaust valve as described in claim 2, characterized in that: The second water-blocking ring (18) has several return water holes (19).

4. The easy-to-install exhaust valve as described in claim 2, characterized in that: The inner wall of the water-blocking hole (16) is connected to a water-blocking membrane (21).

5. The easy-to-install exhaust valve as described in claim 2, characterized in that: The inner diameter of the first water-blocking ring (17) and the second water-blocking ring (18) is smaller than the diameter of the float (20).

6. The easy-to-install exhaust valve as described in claim 1, characterized in that: The inner wall of the exhaust pipe (5) is connected to a dustproof net (6).

7. The easy-to-install exhaust valve as described in claim 1, characterized in that: The connecting pipe (2) is provided with a threaded part (3) and an insertion part (4).

8. The easy-to-install exhaust valve as described in claim 1, characterized in that: The working cylinder (1) is connected to a sealing ring (22).

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