Quick discharge valve

By designing a quick-exhaust valve, the cylinder can quickly intake and exhaust by using a cup-shaped sealing ring that slides within the air chamber. This solves the problem of insufficient intake and exhaust speed, improves production efficiency, and reduces exhaust noise.

CN223498874UActive Publication Date: 2025-10-31WUXI HUATONG PNEUMATIC MFG
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Patent Information

Application Number
CN202422750642.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-10-31
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

The intake and exhaust speeds of cylinders in existing technologies are insufficient, which cannot meet the needs of high-efficiency production.

Method used

A quick-exhaust valve was designed, comprising a valve body, an air inlet, a working port, and an exhaust port. It utilizes a cup-shaped sealing ring that slides within the air chamber to achieve rapid switching between air intake and exhaust. Combined with a rotary joint and a muffler, the gas flow path is optimized.

Benefits of technology

It enables rapid intake and exhaust of the cylinder, improving working efficiency, and adapts to various connection scenarios through the rotary joint, reducing exhaust noise.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of quick discharge valves, in particular to a quick discharge valve. Comprising a valve body, an air inlet, a working port and an exhaust port are formed in the valve body, a valve element is arranged on one side of the exhaust port of the valve body, a hollow hole is formed in the valve element and communicated with the exhaust port, an air cavity in the valve body is divided into a first air cavity and a second air cavity by a bowl-shaped sealing ring, and the second air cavity is formed between the valve element and the inner wall of the valve body and communicated with the working port. A first air cavity is formed between the second air cavity and the air inlet and communicated with the air inlet, the bowl-shaped sealing ring is located in the first air cavity, the end, close to the second air cavity, of the bowl-shaped sealing ring extends to form a middle end face, the outer diameter of the middle end face is larger than the inner diameter of the hollow hole, and the outer diameter of the bowl bottom of the bowl-shaped sealing ring is larger than the outer diameter of the air inlet and smaller than the inner diameter of the first air cavity. According to the scheme, the quick exhaust valve is simple in structure, the bowl-shaped sealing ring moves in the first air cavity to achieve switching between air inlet and air exhaust, and the working efficiency of the air cylinder is improved.
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Description

Technical Field

[0001] This utility model relates to the field of quick-release valve technology, specifically a quick-release valve. Background Technology

[0002] In industrial production, cylinders are used to control the movement of structures. As production efficiency increases, the required response speed of cylinders also increases. The switching of cylinder operation depends on the speed of air intake and exhaust. Therefore, a solution for rapid air intake and exhaust of cylinders is needed to improve work efficiency. Utility Model Content

[0003] The problem to be solved: to provide a solution for rapid intake and exhaust of air in a cylinder.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-release valve, comprising a valve body, an air inlet, a working port, and an exhaust port. A valve core is provided on one side of the exhaust port. The valve core has a hollow hole inside, which communicates with the exhaust port. The valve body contains a first air chamber and a second air chamber. The second air chamber is located between the valve core and the inner wall of the valve body, and it communicates with the working port. The first air chamber is located between the second air chamber and the air inlet, and it communicates with the air inlet. A bowl-shaped sealing ring is slidably disposed within the first air chamber. The end of the bowl-shaped sealing ring near the second air chamber has a central end face. The outer diameter of the central end face is larger than the inner diameter of the hollow hole. The outer diameter of the bottom of the bowl-shaped sealing ring is larger than the outer diameter of the air inlet and smaller than the inner diameter of the first air chamber.

[0005] Preferably, a groove is provided on the outer periphery of the middle end face, and an outer ring is formed between the groove and the first air chamber, with the outer ring sliding close to the inner wall of the first air chamber.

[0006] Preferably, the air inlet sleeve is equipped with a lock nut through.

[0007] Preferably, the working port is equipped with a rotary joint.

[0008] Preferably, the exhaust port is fitted with a muffler.

[0009] Preferably, the inner diameter of air chamber two is larger than the inner diameter of air chamber one, and the inner diameter of air chamber one is larger than the inner diameter of the air inlet.

[0010] Compared with the prior art, this utility model provides a quick exhaust valve with the following advantages: The quick exhaust valve of this utility model is used to supply and exhaust air to the cylinder. It achieves rapid air intake and rapid air exhaust through the cooperation of air chamber one, air chamber two and cup-shaped sealing ring. The movement of the cup-shaped sealing ring in air chamber one realizes the switching between air intake and exhaust. The multi-angle rotation of the rotary joint can realize various working scenarios of the cylinder. The quick exhaust valve solution of this utility model has a simple structure and improves the working efficiency of the cylinder. Attached Figure Description

[0011] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0012] Figure 2 This is the front view of the present invention;

[0013] Figure 3 This is a side view of the present invention;

[0014] Explanation of reference numerals in the attached drawings: 1. Valve body; 11. Bowl-shaped sealing ring; 111. Outer ring; 112. Groove; 113. Middle end face; 12. Air chamber one; 13. Air chamber two; 14. Hollow hole; 15. Valve core; 151. Valve core end; 16. Sealing ring; 2. Air inlet; 21. Lock nut straight-through; 3. Working port; 31. Rotary joint; 4. Exhaust port; 41. Silencer. Detailed Implementation

[0015] The technical solutions of the present utility model will now be described with reference to the accompanying drawings in the embodiments of the present utility model:

[0016] As described in the background art, this utility model proposes a quick exhaust valve for supplying and exhausting air to a cylinder. The quick exhaust valve includes a valve body 1, which has an air inlet 2, a working port 3, and an exhaust port 4. The air inlet 2 and the exhaust port 4 are arranged opposite each other and their center lines are collinear. The center line of the working port 3 is perpendicular to the center line of the air inlet 2. The valve body 1 has a valve core 15 on one side of the exhaust port 4. The valve core 15 is a hollow structure and is connected to the exhaust port 4. The hollow structure is a hollow hole 14. The valve body 1 has a first air chamber 12 and a second air chamber 13. A bowl-shaped sealing ring 11 is slidably installed in the first air chamber 12. The bowl-shaped sealing ring 11 separates the first air chamber 12 and the second air chamber 13. One end of the bowl-shaped sealing ring 11 is close to the air inlet 2. The first air chamber 12 can be connected to the air inlet 2. The other end of the bowl-shaped sealing ring 11 is the second air chamber 13, which is connected to the working port 3. The valve core 15 and the inner wall of the valve body 1 are sealed by the sealing ring 16. The outer diameter of the end of the valve core 15 away from the exhaust port 4 is smaller than the inner diameter of the valve body 1 to form the second air chamber 13. The end of the bowl-shaped sealing ring 11 near the second air chamber 13 extends to a middle end face 113. The outer diameter of the middle end face 113 is larger than the inner diameter of the hollow hole 14. That is, when the middle end face 113 abuts against the end 151 of the valve core, the hollow hole 14 is sealed with both the first air chamber 12 and the second air chamber 13. The outer diameter of the bottom of the bowl-shaped sealing ring 11 is larger than the inner diameter of the air inlet 2 and smaller than the inner diameter of the first air chamber 12. When the bottom of the bowl-shaped sealing ring 11 abuts against the air inlet 2, the seal between the first air chamber 12 and the air inlet 2 is achieved. A groove 112 is provided around the middle end face 113. An outer ring 111 is formed between the groove 112 and the air chamber 12. The outer ring 111 slides tightly against the inner wall of the air chamber 12. The groove 112 allows the thrust of the gas from the working port 3 on the bowl-shaped sealing ring 11 to be concentrated in the groove 112, enabling rapid connection and exhaust between the working port 3, the hollow hole 14, and the exhaust port 4. The air inlet 2 is fitted with a lock nut straight-through 21, which facilitates connection to upstream air source equipment. The working port 3 is fitted with a rotary joint 31, which allows for 360° rotation and is suitable for various cylinder connection scenarios. The exhaust port 4 is fitted with a muffler 41, which reduces exhaust noise. The inner diameter of the air chamber 12 is larger than that of the air inlet 2, allowing for connection between the air inlet 2, the air chamber 12, and the working port 3 during air intake.

[0017] When in use, the air source is turned on to supply air to the air inlet 2. The gas quickly pushes the cup-shaped sealing ring 11 along the inner wall of the first air chamber 12 towards the valve core 15. The middle end face 113 and the valve core end 151 are sealed together to block the hollow hole 14. The gas flows through the first air chamber 12 to the second air chamber 13 and then to the working port 3 to provide air source for the cylinder. When exhausting, the air source on the side of the air inlet 2 is cut off. The gas in the cylinder reaches the second air chamber 13 along the working port 3 and is concentrated in the groove 112. It pushes the cup-shaped sealing ring 11 along the inner wall of the first air chamber 12 towards the air inlet 2 and then the cup-shaped sealing ring 11 blocks the air inlet 2. At this time, the second air chamber 13 and the hollow hole 14 are connected. The gas discharged from the cylinder is discharged into the atmosphere through the hollow hole 14, the exhaust port 4, and the muffler 41.

[0018] The above embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A quick-release valve, comprising a valve body (1), wherein the valve body (1) is provided with an air inlet (2), a working port (3) and an exhaust port (4), and a valve core (15) is provided on the exhaust port (4) side of the valve body (1), wherein the valve core (15) has a hollow hole (14) inside and the hollow hole (14) communicates with the exhaust port (4), characterized in that: The valve body (1) is provided with air chamber one (12) and air chamber two (13). The valve core (15) and the inner wall of the valve body (1) are air chamber two (13). Air chamber two (13) is connected to the working port (3). Air chamber two (13) and the air inlet (2) are air chamber one (12). Air chamber one (12) is connected to the air inlet (2). A bowl-shaped sealing ring (11) is slidably provided in air chamber one (12). The end of the bowl-shaped sealing ring (11) near air chamber two (13) extends to a middle end face (113). The outer diameter of the middle end face (113) is larger than the inner diameter of the hollow hole (14). The outer diameter of the bottom of the bowl-shaped sealing ring (11) is larger than the outer diameter of the air inlet (2) and smaller than the inner diameter of air chamber one (12).

2. The quick-release valve as described in claim 1, characterized in that: The middle end face (113) is provided with a groove (112) around its periphery. The groove (112) and the air chamber (12) are connected by an outer ring (111), which slides close to the inner wall of the air chamber (12).

3. The quick-release valve as described in claim 2, characterized in that: The air inlet (2) is fitted with a lock nut through (21).

4. The quick-release valve as described in claim 3, characterized in that: The working port (3) is fitted with a rotary joint (31).

5. The quick-release valve as described in claim 4, characterized in that: The exhaust port (4) is fitted with a muffler (41).

6. The quick-release valve as described in claim 1, characterized in that: The inner diameter of air chamber 2 (13) is larger than the inner diameter of air chamber 1 (12), and the inner diameter of air chamber 1 (12) is larger than the inner diameter of air inlet (2).