Sanitary ball valve with protective structure

By introducing an inner and outer double-layer sealing structure and protective frame into the sanitary ball valve, the problems of excessive ball valve height and easy loss of seals are solved, achieving more stable installation and better sealing effect.

CN223662647UActive Publication Date: 2025-12-12HANGZHOU WEIHE CONTROL INSTR CO LTD
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Patent Information

Application Number
CN202520510302.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-22
Publication Date
2025-12-12
Estimated Expiration
2035-03-22

AI Technical Summary

Technical Problem

Existing sanitary ball valves suffer from excessive height and instability due to the stacking of manual on/off switches and pneumatic actuators, making the seals prone to falling off and resulting in poor sealing performance.

Method used

A sealing element and a protective frame with an inner and outer double-layer sealing structure were designed. The protective frame secures the manual switch and the pneumatic actuator with components such as clamps and bolts. The sealing element uses limit rings, inner and outer rubber gaskets and plastic rings to enhance the sealing performance.

Benefits of technology

It improves the installation stability of sanitary ball valves, reduces the shaking of manual switches and pneumatic actuators, enhances the sealing effect and prevents seals from falling off, and facilitates disassembly and assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sanitary ball valve with a protective structure, which comprises a valve body, flanges are fixedly mounted at two ends of the valve body, a manual switch is fixedly mounted at the upper end of the valve body, a pneumatic actuator is fixedly mounted at the upper end of the manual switch, a sealing element is fixedly mounted on the surface of each flange, and the sealing element is fixedly mounted on the surface of each flange. A protection frame is arranged among the valve body, the manual switch and the pneumatic actuator in a sleeved mode, and the sealing piece comprises a limiting clamping ring, an inner rubber pad, a plastic ferrule and an outer rubber pad. According to the sanitary ball valve with the protection structure, the sanitary ball valve is more stable after being installed through the protection frame, the manual switch and the pneumatic actuator are clamped and supported, the shaking amplitude of the manual switch and the pneumatic actuator in the working process is reduced, the sealing piece is provided with an inner sealing structure and an outer sealing structure, and therefore the sealing performance of the sanitary ball valve is improved. A plurality of circles of grooves are formed in the surface, the sealing effect is better, the flange can be prevented from accidentally falling off from the surface of the flange, disassembly and assembly are convenient, and the disassembly and assembly mode is simple.
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Description

Technical Field

[0001] This utility model relates to the technical field of sanitary ball valve structure, and in particular to a sanitary ball valve with a protective structure. Background Technology

[0002] A sanitary ball valve is a valve specifically designed for use in fluid pipeline systems that require high sanitary standards. The valve's opening and closing element is driven by the valve stem, which rotates around the axis of the valve stem. It is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid regulation and control. It is widely used in applications with high sanitary requirements, such as the food and pharmaceutical industries.

[0003] Sanitary ball valves control the flow of fluid by rotating a ball. When the ball rotates 90 degrees, the fluid passage is opened or closed. In existing technology, sanitary ball valves are manually opened and closed by rotating a rotary dial on a manual switch, or automatically opened by a pneumatic or electric actuator. This method of using sanitary ball valves has several problems: First, stacking the manual switch and pneumatic actuator on the sanitary ball valve results in an excessively high overall height, making the installation unstable and causing the manual switch and pneumatic actuator to wobble during use. Second, the seals of sanitary ball valves are prone to falling off the flange surface, affecting installation, and are often single-layer rubber or silicone gaskets, resulting in poor sealing performance. Utility Model Content

[0004] The main objective of this invention is to provide a sanitary ball valve with a protective structure, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A sanitary ball valve with a protective structure includes a valve body, flanges fixedly installed at both ends of the valve body, a manual switch fixedly installed at the upper end of the valve body, a pneumatic actuator fixedly installed at the upper end of the manual switch, a sealing element fixedly installed on the surface of the flanges, and a protective frame sleeved between the valve body, the manual switch and the pneumatic actuator.

[0007] Preferably, the sealing element includes a limiting retaining ring, an inner rubber gasket, a plastic sleeve, and an outer rubber gasket.

[0008] Preferably, the limiting retaining ring is fixedly installed on the flange surface near the inner edge, the inner rubber gasket is sleeved on the outside of the limiting retaining ring, the plastic sleeve is fixedly installed on the outside of the inner rubber gasket, and the outer rubber gasket is fixedly installed on the outside of the plastic sleeve.

[0009] Preferably, the inner rubber pad has annular grooves on its front and rear surfaces, the plastic ferrule has a through hole corresponding to the flange through hole position, and the outer rubber pad has annular grooves on its front and rear surfaces.

[0010] Preferably, the protective frame includes a clamping plate, a first bolt, a second bolt, a sponge horn sleeve, a rubber horn sleeve, a sponge rectangular frame, a rubber rectangular frame, a sponge pad, and a rubber pad.

[0011] Preferably, there are two clamping plates, which are sleeved on both ends of the valve body. There are two bolts, one of which is located in the circular through hole at the upper end of the clamping plate, and the other of which is located in the circular through hole in the middle of the clamping plate.

[0012] Preferably, the sponge horn sleeve is fixedly installed in the horn through hole at the upper end of the clamping plate, the rubber horn sleeve is fixedly installed inside the sponge horn sleeve, the sponge rectangular frame is fixedly installed inside the rectangular frame in the middle of the clamping plate, the rubber rectangular frame is fixedly installed inside the sponge rectangular frame, the sponge pad is fixedly installed on the lower surface of the clamping plate, and the rubber pad is fixedly installed on the lower surface of the sponge pad. The number of sponge pads and rubber pads is four.

[0013] This utility model features a protective frame that makes the sanitary ball valve more stable after installation, clamping and supporting the manual switch and pneumatic actuator, thus reducing the shaking amplitude of the manual switch and pneumatic actuator during operation.

[0014] The sealing element features a double-layer sealing structure with multiple grooves on its surface, resulting in a better sealing effect and preventing accidental detachment from the flange surface. It is also easy to install and remove. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a sanitary ball valve with a protective structure according to the present invention;

[0016] Figure 2 This is a schematic diagram of the valve body, flange, manual switch, and pneumatic actuator of a sanitary ball valve with a protective structure according to this utility model.

[0017] Figure 3 This is an exploded view of the sealing structure of a sanitary ball valve with a protective structure according to the present invention.

[0018] Figure 4 This is an exploded view of the protective frame structure of a sanitary ball valve with a protective structure according to the present invention.

[0019] In the diagram: 1. Valve body; 2. Flange; 3. Manual switch; 4. Pneumatic actuator; 5. Seal; 501. Limit ring; 502. Inner rubber gasket; 503. Plastic collar; 504. Outer rubber gasket; 6. Protective frame; 601. Clamping plate; 602. Bolt No. 1; 603. Bolt No. 2; 604. Sponge horn sleeve; 605. Rubber horn sleeve; 606. Sponge rectangular frame; 607. Rubber rectangular frame; 608. Sponge pad; 609. Rubber pad. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-4 As shown, a sanitary ball valve with a protective structure includes a valve body 1, flanges 2 fixedly installed at both ends of the valve body 1, a manual switch 3 fixedly installed at the upper end of the valve body 1, a pneumatic actuator 4 fixedly installed at the upper end of the manual switch 3, a sealing element 5 fixedly installed on the surface of the flanges 2, and a protective frame 6 sleeved between the valve body 1, the manual switch 3 and the pneumatic actuator 4. The sealing element 5 has an inner and outer double-layer sealing structure, with multiple grooves on the surface, resulting in better sealing effect and preventing accidental drop from the surface of the flanges 2. It is easy to disassemble and assemble, and the disassembly and assembly method is simple. The protective frame 6 makes the sanitary ball valve more stable after installation, clamping and supporting the manual switch 3 and the pneumatic actuator 4, reducing the shaking amplitude of the manual switch 3 and the pneumatic actuator 4 during operation.

[0022] In this embodiment, the sealing element 5 includes a limiting retaining ring 501, an inner rubber gasket 502, a plastic collar 503, and an outer rubber gasket 504.

[0023] In this embodiment, the limiting ring 501 is fixedly installed on the surface of the flange 2 near the inner edge. The inner rubber gasket 502 is sleeved on the outer side of the limiting ring 501. The plastic sleeve 503 is fixedly installed on the outer side of the inner rubber gasket 502. The outer rubber gasket 504 is fixedly installed on the outer side of the plastic sleeve 503. The limiting ring 501 is responsible for locking the position of the inner rubber gasket 502. The inner rubber gasket 502 and the outer rubber gasket 504 play a sealing role. The inner rubber gasket 502 can be removed from the limiting ring 501.

[0024] In this embodiment, the inner rubber gasket 502 has annular grooves on its front and rear surfaces, the plastic sleeve 503 has a through hole corresponding to the through hole position of the flange 2, and the outer rubber gasket 504 has annular grooves on its front and rear surfaces. The plastic sleeve 503 makes the sealing element 5 more flat, and the annular grooves on the front and rear surfaces of the inner rubber gasket 502 and the outer rubber gasket 504 have the effect of increasing the sealing performance.

[0025] In this embodiment, the protective frame 6 includes a clamping plate 601, a first bolt 602, a second bolt 603, a sponge horn sleeve 604, a rubber horn sleeve 605, a sponge rectangular frame 606, a rubber rectangular frame 607, a sponge pad 608, and a rubber pad 609.

[0026] In this embodiment, there are two clamping plates 601, which are sleeved on both ends of the valve body 1. There are two bolts 602, one bolt 602 is located in the circular through hole at the upper end of the clamping plate 601, and the other bolt 603 is located in the circular through hole in the middle of the clamping plate 601. The valve body 1, the manual switch 3 and the pneumatic actuator 4 are clamped together by the bolts 602 and 603 and the clamping plate 601.

[0027] In this embodiment, a sponge horn sleeve 604 is fixedly installed in the horn through hole at the upper end of the clamping plate 601, a rubber horn sleeve 605 is fixedly installed inside the sponge horn sleeve 604, a sponge rectangular frame 606 is fixedly installed inside the rectangular frame in the middle of the clamping plate 601, a rubber rectangular frame 607 is fixedly installed inside the sponge rectangular frame 606, a sponge pad 608 is fixedly installed on the lower surface of the clamping plate 601, and a rubber pad 609 is fixedly installed on the lower surface of the sponge pad 608. There are four sponge pads 608 and four rubber pads 609. The sponge horn sleeve 604 makes the rubber horn sleeve 605 fit more snugly against the side of the pneumatic actuator 4. The rubber horn sleeve 605 serves to absorb shock and cushion, and also provides anti-slip properties. The sponge rectangular frame 606 makes the rubber rectangular frame 607 fit more snugly against the side of the manual switch 3. The sponge rectangular frame 606 and the rubber rectangular frame 607 provide cushioning and shock absorption, and the rubber rectangular frame 607 provides anti-slip properties. When installing the sanitary ball valve, the bolt passes through the through hole on the lower surface of the clamp 601, and the protective frame 6 is installed on the iron frame platform corresponding to the sanitary ball valve. The sponge pad 608 makes the rubber pad 609 fit more snugly against the surface of the iron frame platform. The sponge pad 608 and the rubber pad 609 provide cushioning and shock absorption, and the rubber pad 609 provides anti-slip properties.

[0028] The scope of protection of this utility model is not limited to the above embodiments and their variations. Conventional modifications and substitutions made by those skilled in the art based on the content of these embodiments are all within the scope of protection of this utility model.

Claims

1. A sanitary ball valve with a protective structure, characterized in that: The valve body (1) is provided with flanges (2) fixedly installed at both ends. A manual switch (3) is fixedly installed at the upper end of the valve body (1). A pneumatic actuator (4) is fixedly installed at the upper end of the manual switch (3). A sealing element (5) is fixedly installed on the surface of the flange (2). A protective frame (6) is provided between the valve body (1), the manual switch (3) and the pneumatic actuator (4).

2. A sanitary ball valve with a protective structure according to claim 1, characterized in that: The sealing element (5) includes a limiting ring (501), an inner rubber gasket (502), a plastic collar (503), and an outer rubber gasket (504).

3. A sanitary ball valve with a protective structure according to claim 2, characterized in that: The limiting ring (501) is fixedly installed on the surface of the flange (2) near the inner edge. The inner rubber gasket (502) is sleeved on the outside of the limiting ring (501). The plastic sleeve (503) is fixedly installed on the outside of the inner rubber gasket (502). The outer rubber gasket (504) is fixedly installed on the outside of the plastic sleeve (503).

4. A sanitary ball valve with a protective structure according to claim 3, characterized in that: The inner rubber pad (502) has an annular groove on its front and rear surfaces, the plastic collar (503) has a through hole corresponding to the through hole position of the flange (2), and the outer rubber pad (504) has an annular groove on its front and rear surfaces.

5. A sanitary ball valve with a protective structure according to claim 4, characterized in that: The protective frame (6) includes a clamp (601), a first bolt (602), a second bolt (603), a sponge horn sleeve (604), a rubber horn sleeve (605), a sponge rectangular frame (606), a rubber rectangular frame (607), a sponge pad (608), and a rubber pad (609).

6. A sanitary ball valve with a protective structure according to claim 5, characterized in that: There are two clamping plates (601), which are sleeved on both ends of the valve body (1). There are two bolts (602), which are located in the circular through hole at the upper end of the clamping plate (601) and the bolts (603) are located in the circular through hole in the middle of the clamping plate (601).

7. A sanitary ball valve with a protective structure according to claim 6, characterized in that: The sponge horn sleeve (604) is fixedly installed in the horn through hole at the upper end of the clamping plate (601). The rubber horn sleeve (605) is fixedly installed inside the sponge horn sleeve (604). The sponge rectangular frame (606) is fixedly installed inside the rectangular frame in the middle of the clamping plate (601). The rubber rectangular frame (607) is fixedly installed inside the sponge rectangular frame (606). The sponge pad (608) is fixedly installed on the lower surface of the clamping plate (601). The rubber pad (609) is fixedly installed on the lower surface of the sponge pad (608). There are four sponge pads (608) and four rubber pads (609).