Novel pneumatic angle valve

Abstract

The utility model provides a novel pneumatic angle valve, and belongs to the technical field of angle valves. The problem that an existing angle valve is large in abrasion and low in opening and closing efficiency is solved. The novel pneumatic angle valve comprises a valve body with a water inlet and a water outlet, a valve rod and a valve clack, the valve body is provided with an assembly opening for the valve rod and the valve clack to extend into and be installed, and the valve body is provided with a control unit which is located at the assembly opening, connected with the assembly opening and used for controlling the valve rod to move back and forth in the axial direction and improving intelligent control. A limiting unit which is connected with the valve body, can abut against the valve clack and prevents the valve clack from being assembled too deep is arranged in the valve body. The utility model has the advantages of wear reduction and high opening and closing efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of angle valves and relates to a novel pneumatic angle valve. Background Art

[0002] Angle valve is an angle stop valve. Angle valve is similar to ball valve, and its structure and characteristics are modified from ball valve. The difference from ball valve is that the outlet and inlet of angle valve are at a right angle of 90 degrees. Existing angle valves are generally controlled by valve stems, but the use of valve stem rotation will inevitably cause wear, which will lead to impurities entering or liquid seeping out, thus affecting its use effect. Its wear generally needs to be replaced as a whole, resulting in high replacement cost. At the same time, its operation is generally controlled manually. Since the assembly environment of angle valve may be relatively small, its opening and closing is relatively untimely, and its opening and closing efficiency is low. Summary of the invention

[0003] The purpose of the utility model is to provide a pneumatic angle valve which reduces wear and improves intelligent control in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a new type of pneumatic angle valve, including a valve body with a water inlet and a water outlet, a valve stem and a valve disc, and the valve body is provided with an assembly port for the valve stem and the valve disc to be inserted and installed, characterized in that the valve body is provided with a control unit connected to it at the assembly port and used to control the axial movement of the valve stem back and forth and improve the intelligent control, and the valve body is provided with a limit unit connected to it, which can conflict with the valve disc and prevent the valve disc from being assembled too deep.

[0005] In the above-mentioned new type of pneumatic angle valve, the control unit is composed of a shell with a cavity, a cylinder and a piston. The shell is connected to the valve body through a connecting unit. The end surface of the shell connected to the valve body is provided with an annular groove which is axially recessed inward and for the valve body to slide into. The end surface of the shell connected to the valve body is also provided with a through hole for the valve stem to be inserted and installed. The piston is arranged in the cavity in the shell and slidably cooperates with the inner wall of the shell. The valve stem extends into the cavity through the through hole and is connected to the piston. The shell is provided with an air inlet and an air outlet connected to the cavity. The cylinder is arranged outside the valve body, and the cylinder is connected to the air inlet and the air outlet through a pipeline.

[0006] In the above-mentioned novel pneumatic angle valve, an opening groove which is connected with the cavity and is convenient for assembling the piston is provided on the shell, and a sealing cover is provided on the shell at the opening groove.

[0007] In the above-mentioned new type of pneumatic angle valve, the valve stem is provided with a convex ring portion which is connected to the valve stem and slides in contact with the inner wall of the valve body and is used to enhance the sealing performance. The convex ring portion is located above the water outlet, and a sealing ring which is sleeved on the convex ring portion and is used to enhance the sealing performance is provided between the convex ring portion and the valve body. The above-mentioned valve body forms a sealed cavity in the valve body through cooperation with the shell and the convex ring portion. The valve body is located in the sealed cavity and is provided with a buffer spring which is sleeved on the valve stem and has a buffering effect.

[0008] In the above-mentioned new pneumatic angle valve, the outer peripheral wall of the valve stem at the valve disc is provided with a plurality of sealing rings spaced along its axial direction for enhancing the sealing performance, and a sealing ring sleeved on the valve stem for enhancing the sealing performance is provided between two adjacent sealing rings.

[0009] In the above-mentioned novel pneumatic angle valve, a filter cartridge with a filter screen for filtering impurities is sleeved on the valve stem, and two ends of the filter cartridge are in contact with the sealing ring and the convex ring portion respectively.

[0010] In the above-mentioned novel pneumatic angle valve, the connection unit is composed of two flange rings respectively arranged on the shell and the valve body, and the two flange rings are connected by a plurality of studs.

[0011] In the above-mentioned novel pneumatic angle valve, the limiting unit is a limiting ring connected to the valve body.

[0012] Compared with the existing technology, this new pneumatic angle valve has the following advantages:

[0013] 1. A control unit connected to the valve body at the assembly port is provided for controlling the axial reciprocating movement of the valve stem and improving intelligent control. A limit unit connected to the valve body is provided in the valve body, which can conflict with the valve disc and prevent the valve disc from being assembled too deeply. The arrangement of the above structure reduces wear during use, thereby increasing service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the novel pneumatic angle valve.

[0015] In the figure, 1. valve body; 2. valve stem; 3. valve disc; 4. housing; 5. cylinder; 6. piston; 7. sealing cover; 8. convex ring; 9. buffer spring; 10. filter cartridge; 11. flange ring; 12. limit ring. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] like Figure 1As shown, the novel pneumatic angle valve comprises a valve body 1 with a water inlet and a water outlet, a valve stem 2 and a valve flap 3, and the valve body 1 is provided with an assembly port for the valve stem 2 and the valve flap 3 to be inserted and installed, the valve body 1 is provided with a control unit connected to the assembly port and used to control the axial back and forth movement of the valve stem 2 and improve intelligent control, the valve body 1 is provided with a limit unit connected to the valve body 1 and can conflict with the valve flap 3 and prevent the valve flap 3 from being assembled too deep, and the control unit is composed of a shell 4 with a cavity, a cylinder 5 The housing 4 is composed of a piston 6, and the housing 4 is connected to the valve body 1 through a connecting unit. The end surface of the housing 4 connected to the valve body 1 is provided with an annular groove which is axially recessed inward and into which the valve body 1 slides. The housing 4 is located in the annular groove and can be provided with a sealing ring to enhance the sealing performance. The end surface of the housing 4 connected to the valve body 1 is also provided with a through hole into which the valve stem 2 is inserted and installed and which makes the cavity communicate with the outside. The piston 6 is arranged in the cavity in the housing 4 and slidably cooperates with the inner wall of the housing 4. The valve stem 2 extends into the cavity through the through hole. The housing 4 is provided with an air inlet and an air outlet communicating with the cavity. The cylinder 5 is arranged outside the valve body 1 or on the valve body 1, and the cylinder 5 is connected with the air inlet and the air outlet through a pipeline. The housing 4 is provided with a connecting protrusion which is integrally provided with the air inlet and the air outlet and is hollow, so that the cylinder 5 can inject gas into and extract gas from the cavity. When the cylinder 5 is arranged on the valve body 1, the valve body 1 is provided with an assembly seat connected with the cylinder 5, and the valve stem 2 is provided with a connecting protrusion which is integrally provided with the cylinder 5 and is hollow. The convex ring portion 8 is connected to the valve body 1 and slides in contact with the inner wall of the valve body 1, and is used to enhance the sealing performance. The convex ring portion 8 is located above the water outlet, and a sealing ring is provided between the convex ring portion 8 and the valve body 1 and is sleeved on the convex ring portion 8 and is used to enhance the sealing performance. The valve body 1 forms a sealed cavity in the valve body 1 through cooperation with the shell 4 and the convex ring portion 8. The valve body 1 is located in the sealed cavity and is provided with a buffer spring 9 sleeved on the valve stem 2 and having a buffering effect. The limiting unit is a limiting ring 12 connected to the valve body 1.

[0018] To be more specific, in order to facilitate loading and unloading, the housing 4 is provided with an opening groove which is in communication with the cavity and is convenient for assembling the piston 6 , and the housing 4 is provided with a sealing cover 7 at the opening groove.

[0019] To elaborate further, in order to enhance the sealing, a plurality of sealing rings are arranged on the outer peripheral wall of the valve stem 2 at the valve disc 3 and are arranged at intervals along its axial direction for enhancing the sealing, and a sealing ring or sealing gasket is arranged between two adjacent sealing rings and is sleeved on the valve stem 2 for enhancing the sealing.

[0020] To further elaborate, in order to reduce the influence of impurities on the operation of the cylinder 5, a filter cartridge 10 with a filter screen for filtering impurities is sleeved on the valve stem 2, and two ends of the filter cartridge 10 are respectively in contact with the sealing ring and the convex ring portion 8.

[0021] As a preferred structure, the connection unit is composed of two flange rings 11 respectively arranged on the housing 4 and the valve body 1, and the two flange rings 11 are connected by a plurality of studs.

[0022] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0023] Although the terms valve body 1, valve stem 2, valve disc 3, housing 4, cylinder 5, piston 6, sealing cover 7, convex ring 8, buffer spring 9, filter cartridge 10, flange ring 11, and limit ring 12 are frequently used in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A novel pneumatic angle valve, comprising a valve body (1) with a water inlet and a water outlet, a valve stem (2) and a valve flap (3), wherein the valve body (1) is provided with an assembly opening for the valve stem (2) and the valve flap (3) to be inserted and installed, characterized in that: The valve body (1) is provided with a control unit connected to the valve body (1) at the assembly port and used to control the axial reciprocating movement of the valve stem (2) and improve intelligent control. The valve body (1) is provided with a limit unit connected to the valve body (1) and can conflict with the valve flap (3) and prevent the valve flap (3) from being assembled too deep. The control unit is composed of a shell (4) with a cavity, a cylinder (5) and a piston (6). The shell (4) is connected to the valve body (1) through a connection unit. The end surface of the shell (4) connected to the valve body (1) is provided with an annular groove axially inwardly recessed and for the valve body (1) to slide into. The end surface of the shell (4) connected to the valve body (1) is also provided with a through hole for the valve stem (2) to be inserted and installed. The piston (6) is arranged in the cavity of the shell (4) and is slidably matched with the inner wall of the shell (4). The valve stem (2) extends into the cavity through the through hole and is connected to the piston (6). The shell (4) is provided with an air inlet and an air outlet which are in communication with the cavity. The cylinder (5) is arranged outside the valve body (1) and is connected to the air inlet and the air outlet via a pipeline. The valve stem (2) is provided with a convex ring portion (8) which is connected to the valve stem (2) and is slidably fitted with the inner wall of the valve body (1) and is used to enhance the sealing performance. The convex ring portion (8) is located above the water outlet, and a sleeve is provided between the convex ring portion (8) and the valve body (1). The valve body (1) is provided with a sealing ring for enhancing the sealing performance. The valve body (1) forms a sealing cavity in the valve body (1) by cooperating with the housing (4) and the convex ring portion (8). The valve body (1) is provided with a buffer spring (9) sleeved on the valve stem (2) and having a buffering effect in the sealing cavity. The valve stem (2) is sleeved with a filter cartridge (10) with a filter screen for filtering impurities. The two ends of the filter cartridge (10) are respectively in contact with the sealing ring and the convex ring portion (8).

2. A novel pneumatic angle valve according to claim 1, characterized in that: The housing (4) is provided with an opening groove which is in communication with the cavity and is convenient for assembling the piston (6), and the housing (4) is provided with a sealing cover (7) at the opening groove.

3. A novel pneumatic angle valve according to claim 1, characterized in that: The outer peripheral wall of the valve stem (2) located at the valve disc (3) is provided with a plurality of sealing rings spaced apart in the axial direction thereof and used for enhancing the sealing performance, and a sealing ring sleeved on the valve stem (2) and used for enhancing the sealing performance is provided between two adjacent sealing rings.

4. A novel pneumatic angle valve according to claim 1, characterized in that: The connection unit is composed of two flange rings (11) respectively arranged on the housing (4) and the valve body (1), and the two flange rings (11) are connected via a plurality of studs.

5. A novel pneumatic angle valve according to claim 1, characterized in that: The limiting unit is a limiting ring (12) connected to the valve body (1).

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