Noise-reduction pneumatic switch ball valve

Abstract

The utility model discloses a noise reduction pneumatic switch ball valve which comprises a valve unit and a pneumatic unit, the pneumatic unit is installed on the top of the valve unit and used for controlling opening and closing of the valve unit, an auxiliary unit is arranged on the pneumatic unit, and the auxiliary unit comprises a rotating rod, a sleeve, a first bevel gear and a second bevel gear. A clamping block is fixedly connected to the rotating rod, the sleeve is rotationally connected with the rotating rod, a clamping groove is formed in the sleeve, the clamping groove is movably connected with the clamping block in a clamped mode, the first bevel gear is fixedly connected to the other side of the sleeve, and the second bevel gear is connected with the first bevel gear in a meshed mode. According to the noise reduction pneumatic switch ball valve, by arranging the auxiliary unit, opening and closing of the valve can be continuously controlled under the condition that the sealing performance of the pneumatic unit fails, the situation that the valve cannot be operated due to the failure of the pneumatic unit is avoided, normal operation of a pipeline system is guaranteed, and the reliability and stability of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically a noise-reducing pneumatic switching ball valve. Background Technology

[0002] In industrial production and fluid control, ball valves are widely used as an important control element in various pipeline systems for controlling fluid flow and regulating flow. Among them, pneumatic ball valves, with their advantages of convenient operation and rapid response, are widely used in automated control systems.

[0003] However, some existing pneumatic ball valves rely primarily on pneumatic control units to drive the valve unit's opening and closing. During long-term use, the pneumatic unit may experience sealing failures, such as aging or wear of the seals, or leaks at air connections. Once the pneumatic unit fails to seal, it cannot provide the necessary pressure to drive the valve, causing it to malfunction and affecting the normal operation of the entire pipeline system. This could even lead to safety accidents and significant production losses. Utility Model Content

[0004] The purpose of this utility model is to provide a noise-reducing pneumatic ball valve, which solves the problem that the pneumatic unit of some noise-reducing pneumatic ball valves will fail to seal during long-term use. The failure of the pneumatic unit to seal will result in the inability to provide the pressure required to drive the valve, causing the valve to fail to open and close properly, which will affect the normal operation of the entire pipeline system and may even cause safety accidents and serious losses to production.

[0005] A noise-reducing pneumatic ball valve includes a valve unit and a pneumatic unit. The pneumatic unit is installed on the top of the valve unit and is used to control the opening and closing of the valve unit. An auxiliary unit is provided on the pneumatic unit.

[0006] The auxiliary unit includes:

[0007] A rotating rod, on which a locking block is fixedly connected;

[0008] A sleeve is rotatably connected to a rotating rod, and a slot is provided on the sleeve, which is movably engaged with a locking block;

[0009] The first bevel gear is fixedly connected to the other side of the sleeve;

[0010] The second bevel gear meshes with the first bevel gear.

[0011] Preferably, the valve unit includes:

[0012] The valve body contains a valve core that is rotatably connected to it.

[0013] A valve cover, which is fixedly connected to the top of the valve body;

[0014] The valve stem has its bottom end fixedly connected to the valve core.

[0015] Preferably, the pneumatic unit includes:

[0016] The housing is fixedly connected to the top of the valve cover, and a cavity is provided inside the housing;

[0017] A drive assembly disposed within the cavity.

[0018] Preferably, the driving component includes:

[0019] A piston disc, which is slidably connected within a cavity and is in close contact with the inner wall of the cavity;

[0020] A spring, one end of which is fixedly connected to the piston disc and the other end of which is fixedly connected to the housing;

[0021] A rack, which is fixedly connected to the other side of the piston disc;

[0022] A gear that meshes with a rack.

[0023] Preferably, the gear is fixedly sleeved on the valve stem.

[0024] Preferably, the auxiliary unit further includes a turntable, which is fixedly connected to the other end of the rotating rod.

[0025] Preferably, a box body is fixedly connected to the box body, and the box body is rotatably connected to the sleeve.

[0026] Preferably, the second bevel gear is fixedly connected to the top of the valve stem.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] This noise-reducing pneumatic ball valve, by incorporating an auxiliary unit on the pneumatic unit, allows for continued valve control even when the pneumatic unit fails to seal. This is achieved by aligning a locking block on the rotating rod with a slot on the sleeve and inserting the block into the slot. Rotating the turntable then drives the rotating rod, which in turn rotates the sleeve and the first bevel gear, which in turn rotates the second bevel gear and the valve stem. This ensures continued valve control even with a failed pneumatic unit seal, preventing valve malfunction due to pneumatic unit failure, guaranteeing the normal operation of the pipeline system, and improving equipment reliability and stability. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the valve unit structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the pneumatic unit structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the auxiliary unit structure of this utility model.

[0034] In the diagram: 1. Valve unit; 11. Valve body; 12. Valve cover; 13. Valve stem; 2. Pneumatic unit; 21. Housing; 22. Drive assembly; 221. Piston disc; 222. Spring; 223. Rack; 224. Gear; 3. Auxiliary unit; 31. Turntable; 32. Rotating rod; 33. Sleeve; 34. First bevel gear; 35. Second bevel gear. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figure 1-4 This utility model provides a technical solution: a noise-reducing pneumatic ball valve, including a valve unit 1 and a pneumatic unit 2. The pneumatic unit 2 is installed on the top of the valve unit 1 and is used to control the opening and closing of the valve unit 1. An auxiliary unit 3 is provided on the pneumatic unit 2.

[0037] The auxiliary unit 3 includes a rotating rod 32, on which a locking block is fixedly connected;

[0038] Sleeve 33 is rotatably connected to rotating rod 32, and a slot is provided on sleeve 33, which is movably engaged with the locking block;

[0039] The first bevel gear 34 is fixedly connected to the other side of the sleeve 33;

[0040] The second bevel gear 35 meshes with the first bevel gear 34.

[0041] Furthermore, valve unit 1 includes:

[0042] Valve body 11, with a valve core rotatably connected inside the valve body 11;

[0043] Valve cover 12 is fixedly connected to the top of valve body 11;

[0044] Valve stem 13, the bottom end of valve stem 13 is fixedly connected to valve core.

[0045] Furthermore, the pneumatic unit 2 includes:

[0046] Box 21 is fixedly connected to the top of valve cover 12, and a cavity is opened inside box 21;

[0047] Drive component 22 is disposed inside the cavity.

[0048] Furthermore, the drive component 22 includes:

[0049] Piston disc 221 is slidably connected in the cavity, and piston disc 221 is tightly abutted against the inner wall of the cavity;

[0050] Spring 222 has one end fixedly connected to piston disc 221 and the other end fixedly connected to housing 21. The housing 21 of the pneumatic unit 2 has a cavity, and the piston disc 221 of the drive assembly 22 is slidably connected within the cavity and tightly abuts against the inner wall of the cavity. The spring 222, with one end fixed to piston disc 221 and the other end fixed to housing 21, serves to reset piston disc 221.

[0051] Rack 223 is fixedly connected to the other side of piston disc 221;

[0052] Gear 224 meshes with rack 223.

[0053] Furthermore, gear 224 is fixedly sleeved on valve stem 13.

[0054] When the pneumatic unit 2 is working normally, compressed air is introduced into the cavity. The compressed air pushes the piston disc 221 to move to one side against the elastic force of the spring 222. When the piston disc 221 moves, it drives the rack 223 fixed on it to move synchronously.

[0055] Since gear 224 is meshed with rack 223 and gear 224 is fixedly sleeved on valve stem 13, the movement of rack 223 will drive gear 224 to rotate, thereby causing valve stem 13 to rotate. The bottom end of valve stem 13 is fixedly connected to valve core. The rotation of valve stem 13 drives valve core to rotate inside valve body 11, thereby realizing the opening and closing control of valve.

[0056] The noise-reducing pneumatic ball valve includes a valve unit 1 and a pneumatic unit 2. The pneumatic unit 2 is installed on the top of the valve unit 1 and is used to control the opening and closing of the valve unit 1. An auxiliary unit 3 is provided on the pneumatic unit 2.

[0057] The auxiliary unit 3 includes a rotating rod 32, on which a locking block is fixedly connected;

[0058] Sleeve 33 is rotatably connected to rotating rod 32, and a slot is provided on sleeve 33, which is movably engaged with the locking block;

[0059] The first bevel gear 34 is fixedly connected to the other side of the sleeve 33;

[0060] The second bevel gear 35 meshes with the first bevel gear 34.

[0061] Furthermore, the auxiliary unit 3 also includes a turntable 31, which is fixedly connected to the other end of the rotating rod 32.

[0062] Furthermore, a box body is fixedly connected to the box body 21, and the box body is rotatably connected to the sleeve 33.

[0063] Furthermore, the second bevel gear 35 is fixedly connected to the top of the valve stem 13. When the pneumatic unit 2 fails to seal, by aligning the locking block on the rotating rod 32 with the locking groove on the sleeve 33 and inserting the locking block into the locking groove, the rotating disc 31 can drive the rotating rod 32 to rotate, which in turn drives the sleeve 33 and the first bevel gear 34 to rotate, which in turn drives the second bevel gear 35 and the valve stem 13 to rotate. This allows the valve to continue to be controlled even when the pneumatic unit 2 fails to seal, avoiding the situation where the valve cannot be operated due to the failure of the pneumatic unit 2, ensuring the normal operation of the pipeline system, and improving the reliability and stability of the equipment.

[0064] If it is necessary to disconnect the transmission connection between the auxiliary unit 3 and the valve stem 13 during emergency operation, for example after the pneumatic unit 2 returns to normal, simply pull the rotating rod 32 outward to disengage the locking block from the locking groove. At this time, the rotation of the rotating rod 32 will no longer drive the sleeve 33 to rotate, and the pneumatic unit 2 can resume normal control of the valve opening and closing.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A noise-reducing pneumatic ball valve, comprising a valve unit (1) and a pneumatic unit (2), wherein the pneumatic unit (2) is mounted on top of the valve unit (1) and is used to control the opening and closing of the valve unit (1), characterized in that: An auxiliary unit (3) is provided on the pneumatic unit (2); The auxiliary unit (3) includes: A rotating rod (32) is fixedly connected to a locking block; Sleeve (33), the sleeve (33) is rotatably connected to the rotating rod (32), and a slot is provided on the sleeve (33), the slot being movably engaged with the locking block; The first bevel gear (34) is fixedly connected to the other side of the sleeve (33); The second bevel gear (35) meshes with the first bevel gear (34).

2. The noise-reducing pneumatic ball valve as described in claim 1, characterized in that: The valve unit (1) includes: Valve body (11), wherein a valve core is rotatably connected inside the valve body (11); Valve cover (12), which is fixedly connected to the top of valve body (11); Valve stem (13), the bottom end of which is fixedly connected to the valve core.

3. The noise-reducing pneumatic ball valve as described in claim 2, characterized in that: The pneumatic unit (2) includes: The housing (21) is fixedly connected to the top of the valve cover (12), and the housing (21) has a cavity inside; A drive assembly (22) is disposed within the cavity.

4. The noise-reducing pneumatic ball valve as described in claim 3, characterized in that: The driving component (22) includes: Piston disc (221), which is slidably connected in the cavity and is in close contact with the inner wall of the cavity; A spring (222), one end of which is fixedly connected to the piston disc (221), and the other end of which is fixedly connected to the housing (21); A rack (223) is fixedly connected to the other side of the piston disc (221); Gear (224), which meshes with rack (223).

5. The noise-reducing pneumatic ball valve as described in claim 4, characterized in that: The gear (224) is fixedly sleeved on the valve stem (13).

6. The noise-reducing pneumatic ball valve as described in claim 1, characterized in that: The auxiliary unit (3) also includes a turntable (31), which is fixedly connected to the other end of the rotating rod (32).

7. The noise-reducing pneumatic ball valve as described in claim 3, characterized in that: A box body is fixedly connected to the box body (21), and the box body is rotatably connected to the sleeve (33).

8. The noise-reducing pneumatic ball valve as described in claim 1, characterized in that: The second bevel gear (35) is fixedly connected to the top of the valve stem (13).

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