Duplex ball valve with high sealing effect

Abstract

The utility model discloses a duplex ball valve with a high sealing effect, which comprises a duplex ball valve body, the left side surface of the duplex ball valve body is fixedly connected with a sleeve, the inner wall of the sleeve is fixedly connected with a limiting ring, the left side surface of the limiting ring is fixedly connected with a sealing insertion ring, the left side of the sleeve is provided with a filter screen, and the inner wall of the sleeve is fixedly connected with the sealing insertion ring. And the right side surface of the filter screen is fixedly connected with a sealing concave ring. Through the arrangement of the filter screen and the positioning frame, the filter screen can be limited through the limiting ring, then a good sealing effect is conveniently achieved through the design of the sealing insertion ring and the sealing concave ring, then the filter screen is conveniently limited through the cooperation of the positioning rod and the positioning hole, and the filter screen is prevented from rotating; and meanwhile, the filter screen can be conveniently pressed and positioned through the positioning frame, particulate matter in fluid can be conveniently filtered through the design of the filter screen, meanwhile, the friction gap between the valve ball and the sealing gasket is reduced, and the sealing effect is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of double ball valves, and in particular to a double ball valve with high sealing effect. Background Art

[0002] A double ball valve is a special valve that consists of two independent ball valves connected by a common valve stem. This design allows the two valves to operate simultaneously, or one to open while the other is closed, thereby achieving multiple control functions. Double ball valves are widely used in situations where the flow direction of two pipelines needs to be controlled simultaneously, such as in the chemical, petroleum, natural gas and water treatment industries.

[0003] At present, double ball valves are usually equipped with sealing gaskets inside, which are used for sealing, but cannot filter the fluid. Particles in the fluid are easily accumulated on the valve ball, so the friction between the valve ball and the sealing gasket is likely to produce a large gap, which will affect the sealing effect and is not conducive to current use. Utility Model Content

[0004] The purpose of the utility model is to provide a double ball valve with high sealing effect to solve the problems raised in the above background technology.

[0005] The embodiments of this application adopt the following technical solutions:

[0006] A double ball valve with high sealing effect includes a double ball valve body, a sleeve fixedly connected to the left side of the double ball valve body, a limit ring fixedly connected to the inner wall of the sleeve, a sealing insert ring fixedly connected to the left side of the limit ring, a filter screen is provided on the left side of the sleeve, a sealing concave ring is fixedly connected to the right side of the filter screen, a positioning frame is provided on the left side of the filter screen, two fixed blocks are fixedly connected to the inner wall of the limit ring, a positioning hole is opened on the front side of each of the fixed blocks, and two positioning rods are fixedly connected to the right side of the filter screen.

[0007] Preferably, a pull rope is provided on the right side of the positioning frame, and the right end of the pull rope is fixedly connected to the left side of the filter screen.

[0008] Preferably, a flow meter is provided in front of the double ball valve body, and a rear end of the flow meter passes through the double ball valve body and extends to the interior of the double ball valve body.

[0009] Preferably, each of the positioning rods is adapted to the positioning hole, and the sealing insert ring and the sealing recessed ring are both made of rubber.

[0010] Preferably, a fixing ring is fixedly connected to the inner wall of the sleeve, and the left side of the fixing ring is fixedly connected to the right side of the limiting ring.

[0011] Preferably, a product label is provided on the front of the double ball valve body, and the back of the product label is fixedly connected to the outer surface of the double ball valve body.

[0012] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0013] By providing a filter screen and a positioning frame, the filter screen can be limited by a limiting ring, and then a good sealing effect is achieved through the design of a sealing insert ring and a sealing recessed ring. Then, the positioning rod and the positioning hole are coordinated to limit the filter screen to prevent the filter screen from rotating. At the same time, the positioning frame is used to pressurize and position the filter screen, and the design of the filter screen facilitates filtering of particulate matter in the fluid, while reducing the friction gap between the valve ball and the sealing gasket, and greatly improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 : A schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 The figure is a schematic diagram of the three-dimensional structure of the side view of the positioning frame of the utility model;

[0017] Figure 3 : A schematic diagram of the three-dimensional structure of the side view of the sleeve of the utility model;

[0018] Figure 4 : A sectional view of the front view of the sleeve of the utility model;

[0019] Figure 5 : A schematic diagram of the three-dimensional structure of the side view of the filter screen of the present invention.

[0020] In the figure: 1. Positioning frame; 2. Sealing concave ring; 3. Sleeve; 4. Flow meter; 5. Double ball valve body; 6. Product label; 7. Positioning rod; 8. Filter screen; 9. Pull rope; 10. Sealing insert; 11. Positioning hole; 12. Fixing block; 13. Limiting ring; 14. Fixing ring. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] The following describes in detail the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0023] See also Figure 1-5 , the utility model provides a double ball valve technical solution with high sealing effect:

[0024] A double ball valve with high sealing effect, including a double ball valve body 5, a sleeve 3 is fixedly connected to the left side of the double ball valve body 5, a limit ring 13 is fixedly connected to the inner wall of the sleeve 3, a sealing insert ring 10 is fixedly connected to the left side of the limit ring 13, a filter screen 8 is provided on the left side of the sleeve 3, a sealing concave ring 2 is fixedly connected to the right side of the filter screen 8, a positioning frame 1 is provided on the left side of the filter screen 8, two fixed blocks 12 are fixedly connected to the inner wall of the limit ring 13, each fixed block 12 has a positioning hole 11 on the front side, and the right side of the filter screen 8 is fixedly connected to two Specifically, the limiting ring 13 can be used to limit the filter screen 8, and then the design of the sealing insert ring 10 and the sealing concave ring 2 is used to facilitate a good sealing effect. Then, the positioning rod 7 and the positioning hole 11 are used to facilitate the positioning of the filter screen 8 to prevent the filter screen 8 from rotating. At the same time, the positioning frame 1 is used to facilitate the pressure positioning of the filter screen 8, and the design of the filter screen 8 is used to facilitate the filtering of particulate matter in the fluid, while reducing the friction gap between the valve ball and the sealing gasket, and greatly improving the sealing effect;

[0025] In this embodiment, a pull rope 9 is provided on the right side of the positioning frame 1, and the right end of the pull rope 9 is fixedly connected to the left side of the filter screen 8; a flow meter 4 is provided in front of the double ball valve body 5, and the rear end of the flow meter 4 passes through the double ball valve body 5 and extends into the interior of the double ball valve body 5; each positioning rod 7 is adapted to the positioning hole 11, and the material of the sealing insert ring 10 and the material of the sealing concave ring 2 are both rubber materials; specifically, the pull rope 9 is used to facilitate the removal and replacement of the filter screen 8, and the flow meter 4 is used to facilitate the measurement of the fluid, and the design of the sealing insert ring 10 and the sealing concave ring 2 facilitates the sealing effect;

[0026] In this embodiment, a fixing ring 14 is fixedly connected to the inner wall of the sleeve 3, and the left side of the fixing ring 14 is fixedly connected to the right side of the limit ring 13; a product label 6 is provided in front of the double ball valve body 5, and the back of the product label 6 is fixedly connected to the outer surface of the double ball valve body 5; specifically, the fixing ring 14 is used to facilitate a more secure connection between the limit ring 13 and the sleeve 3, and the product label 6 facilitates users to understand the product.

[0027] Working principle: When the double ball valve with high sealing effect is used, the user first places the filter 8 inside the sleeve 3, and then pushes the sealing concave ring 2 to contact the limit ring 13 through the filter 8. At this time, the sealing insert ring 10 is inserted into the sealing concave ring 2. At the same time, the thrust of the filter 8 is used to insert the positioning rod 7 into the positioning hole 11 and prevent the filter 8 from rotating. Then the positioning frame 1 is placed inside the sleeve 3. At this time, the positioning frame 1 is in contact with the filter 8. However, when the sleeve 3 is threadedly connected to the connecting pipe, pressure can be applied to the positioning frame 1 to complete the installation of the filter 8.

[0028] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0029] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A double ball valve with high sealing effect, comprising a double ball valve body (5), characterized in that: The left side of the double ball valve body (5) is fixedly connected to a sleeve (3), the inner wall of the sleeve (3) is fixedly connected to a limit ring (13), the left side of the limit ring (13) is fixedly connected to a sealing insert ring (10), a filter screen (8) is provided on the left side of the sleeve (3), a sealing concave ring (2) is fixedly connected to the right side of the filter screen (8), a positioning frame (1) is provided on the left side of the filter screen (8), two fixed blocks (12) are fixedly connected to the inner wall of the limit ring (13), each of the fixed blocks (12) is provided with a positioning hole (11) on the front side, and two positioning rods (7) are fixedly connected to the right side of the filter screen (8).

2. A double ball valve with high sealing effect according to claim 1, characterized in that: A drawstring (9) is provided on the right side of the positioning frame (1), and the right end of the drawstring (9) is fixedly connected to the left side of the filter screen (8).

3. A double ball valve with high sealing effect according to claim 1, characterized in that: A flow meter (4) is provided in front of the double ball valve body (5), and a rear end of the flow meter (4) passes through the double ball valve body (5) and extends into the interior of the double ball valve body (5).

4. A double ball valve with high sealing effect according to claim 1, characterized in that: Each positioning rod (7) is adapted to the positioning hole (11), and the sealing insert ring (10) and the sealing recessed ring (2) are both made of rubber.

5. A double ball valve with high sealing effect according to claim 1, characterized in that: A fixing ring (14) is fixedly connected to the inner wall of the sleeve (3), and the left side of the fixing ring (14) is fixedly connected to the right side of the limiting ring (13).

6. A double ball valve with high sealing effect according to claim 1, characterized in that: A product mark (6) is provided in front of the double ball valve body (5), and the back of the product mark (6) is fixedly connected to the outer surface of the double ball valve body (5).

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