Novel corner valve

Abstract

The utility model relates to a novel corner valve which is mainly composed of three independent air cylinder execution parts and a body, an air cylinder execution mechanism part is connected with the body through a bolt for a square opening, an air cylinder mechanism drives a corresponding valve rod to move up and down, and a piston is located in a cylinder body and divides the interior of the cylinder body into a first air cavity and a second air cavity. The first air cavity and the second air cavity are located above and below the piston respectively, the valve rod is fixedly connected with the piston, a channel is formed in the valve rod, and the two ends of the channel of the valve rod are communicated with the second air cavity through the vent hole respectively. The opening size and the opening position can be adjusted through the air cylinder mechanism, diversification requirements are met through flange type connection, and the problem of right-angle steering connection of pipelines in the actual use process is solved; through inclined plane sealing, the contact area is small, and the problems of large medium pressure and small valve opening force are solved.

Description

Technical Field

[0001] The utility model relates to the field of angle valves, in particular to a new angle valve. Background Art

[0002] The pneumatic angle valve is a special valve device whose action is controlled by air pressure. In the context of existing technology, the design and manufacture of pneumatic angle valves have made significant progress and are widely used in various industrial fields. First of all, from the perspective of materials, modern pneumatic angle valves are usually made of high-strength, corrosion-resistant materials such as stainless steel and special alloys. The use of these materials not only improves the durability and reliability of the valve, but also maintains stable performance in harsh working environments.

[0003] Secondly, in terms of structural design, pneumatic angle valves usually have a compact structure and optimized fluid channel design to ensure smooth flow of fluid and minimal pressure loss. At the same time, the sealing performance of the valve has also been greatly improved. By adopting advanced sealing materials and structural design, leakage problems can be effectively prevented. However, due to the late start of my country's instrument valve technology, many basic structures are still at the past level, the quality of valves is uneven, and the single port connection form will cause leakage problems. Summary of the invention

[0004] The utility model aims to solve the above problems and provides a new type of corner valve, which solves the pipeline connection problem of the corner valve and the problem of large opening force.

[0005] A new type of corner valve includes: an actuator part and a valve body, the actuator part is connected to the body through a square port, the cylinder drives the valve stem to move up and down, the piston is located inside the cylinder and divides the inside of the cylinder into a first air cavity and a second air cavity, the first air cavity and the second air cavity are respectively located above and below the piston, the valve stem is fixedly connected to the piston, the valve stem forms a channel inside, and the air vents at both ends of the channel of the valve stem are connected to the second air cavity.

[0006] On the basis of the above technical solution, it also includes a spring and a first sealing ring. The cylinder is connected to the valve body through an end cover, and the end cover is fixedly connected to the cylinder body through a hole with a retaining ring. The spring is located in the first cavity, and the two ends of the spring are in contact with the piston and the cylinder respectively. The first sealing ring is sleeved on the outside of the piston, and the first sealing ring is slidably connected to the inner wall of the cylinder.

[0007] On the basis of the above technical solution, it also includes a second sealing ring, which is respectively fitted with the connecting inner hole and the outer circle of the valve stem, fixed in the connecting through hole to form a sliding connection with the valve stem, and the packings are in contact with each other.

[0008] Based on the above technical solution, a third sealing ring is further included, the valve core is fitted with the third sealing ring, and the valve core gasket is fixed to the valve stem. The third sealing ring is fitted with the valve body to divide the channel into a first channel and a second channel;

[0009] The utility model has the following advantages: the opening size and opening position can be adjusted through the cylinder mechanism, the flange connection meets diverse needs, and solves the problem of right-angle turning connecting pipes during actual use; through the inclined surface sealing, the contact area is small, which solves the problem of small valve opening force due to high medium pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0011] Figure 1 : A schematic diagram of the cross-sectional structure of a new corner valve of the utility model when it is closed;

[0012] Figure 2 : A schematic cross-sectional view of the utility model when a novel corner valve is opened.

[0013] Figure 3 : A schematic cross-sectional view of a novel angle valve of the present invention. DETAILED DESCRIPTION

[0014] The utility model is further described below with reference to the accompanying drawings and examples:

[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. Example

[0016] like Figure 1 and Figure 2As shown, this embodiment provides a new type of corner valve, including: an executive part and a valve body, the executive part is connected to the valve body through a square port connection, the cylinder drives the valve stem to move up and down, the piston is located inside the cylinder, and divides the inside of the cylinder into a first air cavity and a second air cavity, the first air cavity and the second air cavity are respectively located above and below the piston, the valve stem is fixedly connected to the piston, the valve stem forms a channel inside, and the air vents at both ends of the channel of the valve stem are connected to the second air cavity respectively.

[0017] On the basis of the above technical solution, it also includes a spring and a first sealing ring. The cylinder is connected to the valve body through an end cover, and the end cover is fixedly connected to the cylinder body through a hole with a retaining ring. The spring is located in the first cavity, and the two ends of the spring are in contact with the piston and the cylinder respectively. The first sealing ring is sleeved on the outside of the piston, and the first sealing ring is slidably connected to the inner wall of the cylinder.

[0018] On the basis of the above technical solution, it also includes a second sealing ring, which is respectively fitted with the connecting inner hole and the outer circle of the valve stem, fixed in the connecting through hole to form a sliding connection with the valve stem, and the packings are in contact with each other.

[0019] Based on the above technical solution, a third sealing ring is further included, the valve core is fitted with the third sealing ring, and the valve core gasket is fixed to the valve stem. The third sealing ring is fitted with the valve body to divide the channel into a first channel and a second channel;

[0020] Working principle:

[0021] When the cylinder ventilation valve is opened, the gas source enters the lower air inlet cavity, and the gas pushes the piston upward, thereby driving the valve stem upward. The third sealing ring is out of contact with the valve body sealing shoe surface, and the medium flows through the valve body from the lower inlet and out from the side outlet. The medium flow direction is as follows: Figure 2 shown.

[0022] When the cylinder ventilation valve is closed, the air source is disconnected, the spring rebounds and pushes the piston downward, and the third sealing ring is in close contact with the valve body sealing shoe surface. Figure 1 shown.

[0023] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments, and any changes or modifications based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A new type of angle valve, characterized in that: include: The actuator comprises a cylinder (6) and a piston (7) and is composed of a valve body (30). The actuator is connected to the valve body (30) via a square port connection (20). The cylinder (6) drives the valve stem (31) to move up and down. The piston (7) is located inside the cylinder (6) and divides the inside of the cylinder (6) into a first air cavity and a second air cavity. The first air cavity and the second air cavity are located above and below the piston (7), respectively. The valve stem (31) is fixedly connected to the piston (7). The valve stem (31) forms a channel inside. The two ends of the channel of the valve stem (31) are connected to the air vent and the second air cavity.

2. A novel angle valve according to claim 1, characterized in that: It also includes a spring (4) and a first sealing ring (8). The cylinder (6) and the valve body (30) are matched through the end cover (12) and the connection (20). The end cover (12) and the cylinder (6) are fixedly connected through the hole by a retaining ring. The spring (4) is located in the first cavity. The two ends of the spring (4) are respectively in contact with the piston (7) and the cylinder (6). The first sealing ring (8) is sleeved on the outside of the piston (7). The first sealing ring (8) is slidably connected to the inner wall of the cylinder (6).

3. A new angle valve according to claim 2, characterized in that: It also includes a second sealing ring (17), which is respectively fitted with the inner hole of the connection (20) and the outer circle of the valve stem (31), and is fixed in the through hole of the connection to form a sliding connection with the valve stem (31), and the packing (22), the packing (23) and the packing (24) are in contact.

4. A novel angle valve according to claim 2, characterized in that: It also includes a third sealing ring (34), wherein the first sealing ring (8) fits the third sealing ring (34), and the third sealing ring (34) fits the valve body (30), dividing the channel into a first channel and a second channel.

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