Fluorine-lined butterfly valve

Abstract

The utility model relates to a fluorine lining butterfly valve which comprises a valve body, a circular plate is slidably connected in one end of the valve body, a filter screen is fixedly connected in the circular plate, limiting clamping grooves are formed in the upper face and the lower face in one end of the valve body, limiting clamping blocks are slidably connected in the limiting clamping grooves, and the limiting clamping blocks are fixedly connected with the circular plate. Two positioning plates fixedly connected with the circular plate are arranged in the valve body, the positioning plates are connected with the valve body in a limiting mode through positioning mechanisms, and through grooves are formed in the surfaces of the positioning plates. The fluorine-lined butterfly valve has a filtering function in use, prevents impurities in liquid from flushing the valve body and causing abrasion of the valve body when the impurities are in contact with the valve body due to high flow speed when the impurities pass through the butterfly valve body, and is practical.

Description

Technical Field

[0001] The utility model relates to the technical field of fluorine-lined butterfly valves, in particular to a fluorine-lined butterfly valve. Background Art

[0002] Fluorine-lined butterfly valve: As a component used to realize the on-off and flow control of pipeline systems, it has been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower, etc. In the known butterfly valve technology, its sealing form mostly adopts a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to the limitation of structural characteristics, it is not suitable for industries such as high temperature resistance, high pressure resistance, corrosion resistance, and wear resistance.

[0003] The Chinese patent application number CN202122788332.9 discloses a new type of fluorine-lined butterfly valve, including a butterfly valve body, a valve stem is rotatably mounted on the surface of the butterfly valve body, a valve plate is fixedly mounted on the outer wall of the valve stem, a mounting and disassembly mechanism is symmetrically provided on the surface of the valve plate, and an anti-corrosion component is also provided on the surface of the valve plate.

[0004] However, the above-mentioned prior art still has shortcomings in actual use. The butterfly valve body in the above-mentioned prior art does not have a filtering function when in use. When impurities in the liquid pass through the butterfly valve body due to the fast flow rate, when they come into contact with the valve body, they will flush the valve body, causing wear of the valve body and affecting the service life of the valve body. For this reason, we propose a fluorine-lined butterfly valve. Utility Model Content

[0005] The utility model provides a fluorine-lined butterfly valve, which solves the technical problems raised by the background technology in the prior art.

[0006] The utility model solves the above-mentioned technical problems as follows: it comprises a valve body, wherein a circular plate is slidably connected inside one end of the valve body, a filter screen is fixedly connected inside the circular plate, a limit slot is provided on the upper and lower surfaces inside one end of the valve body, a limit block is slidably connected inside the limit slot, and the limit block is fixedly connected to the circular plate, and two positioning plates are arranged inside the valve body, both of which are fixedly connected to the circular plate, and the positioning plate is limitatively connected to the valve body through a positioning mechanism, and a through groove is arranged on the surface of the positioning plate, and the positioning mechanism comprises a through cylinder that passes through the valve body and is fixedly connected to the through position, a circular slider is arranged inside the through cylinder, a sealing ring gasket that is slidably connected to the inside of the through cylinder is fixedly connected to the outer end surface of the circular slider, a plug plate is fixedly connected to the lower end surface of the circular slider, the plug plate is slidably connected to the corresponding through slot, a limited rotation groove is arranged on the upper end surface of the circular slider, and the limited rotation block is rotatably connected inside the limited rotation groove.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, flanges are fixedly connected to the outer surfaces of both ends of the valve body, and connecting holes are opened on the surfaces of the flanges.

[0009] Furthermore, a threaded rod is fixedly connected to the upper end of the limit rotating block, the threaded rod passes through the cylinder and is threadedly connected to the passing part, and a rotating cap is fixedly connected to the upper end of the threaded rod.

[0010] The beneficial effects of the utility model are as follows: the utility model provides a fluorine-lined butterfly valve, which has the following advantages:

[0011] Through the cooperation of the positioning mechanism, limit slot, limit block, circular plate, filter screen and positioning plate, the valve body can play a filtering effect when in use, thereby preventing impurities in the liquid from eroding the valve body due to the fast flow rate when passing through the butterfly valve body and contacting the valve body, causing wear of the valve body and affecting the service life of the valve body, thereby improving practicality.

[0012] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 A schematic diagram of the structure of a fluorine-lined butterfly valve provided in one embodiment of the utility model;

[0015] Figure 2 for Figure 1 A schematic side view of the structure of a fluorine-lined butterfly valve is provided;

[0016] Figure 3 for Figure 2 An enlarged schematic diagram of a local structure of a fluorine-lined butterfly valve is provided;

[0017] Figure 4 for Figure 1 A schematic cross-sectional view of a local structure of a fluorine-lined butterfly valve is provided;

[0018] Figure 5 for Figure 4 An enlarged schematic diagram of the local structure of a fluorine-lined butterfly valve is provided.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Valve body; 2. Rotating handle; 3. Through cylinder; 4. Flange; 5. Round plate; 6. Filter; 7. Limiting slot; 8. Limiting block; 9. Positioning plate; 10. Sealing ring; 11. Round slider; 12. Limiting rotating slot; 13. Limiting rotating block; 14. Threaded rod; 15. Insert plate; 16. Through slot. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-5 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] like Figure 1-5As shown, the utility model provides a fluorine-lined butterfly valve, including a valve body 1, a circular plate 5 is slidably connected to one end of the valve body 1, a filter screen 6 is fixedly connected to the circular plate 5, a limit card groove 7 is provided on the upper and lower surfaces of one end of the valve body 1, a limit card block 8 is slidably connected to the limit card groove 7, and the limit card block 8 is fixedly connected to the circular plate 5, two positioning plates 9 are arranged inside the valve body 1, both of which are fixedly connected to the circular plate 5, the positioning plate 9 is limitedly connected to the valve body 1 through a positioning mechanism, a through groove 16 is provided on the surface of the positioning plate 9, and the positioning mechanism includes a through cylinder 3 that penetrates the valve body 1 and is fixedly connected to the through position, and a through cylinder 3 is provided inside the through cylinder 3. A circular slider 11 is provided, and the setting of the circular slider 11 can drive the plug plate 15 to move. The outer end surface of the circular slider 11 is fixedly connected with a sealing ring gasket 10 that is slidably connected to the inside of the through cylinder 3. The lower end surface of the circular slider 11 is fixedly connected with the plug plate 15. The setting of the sealing ring gasket 10 can improve the sealing performance between the circular slider 11 and the inner wall of the through cylinder 3. The plug plate 15 is slidably connected to the corresponding through groove 16. A limited rotation groove 12 is provided on the upper end surface of the circular slider 11. The limited rotation groove 12 is rotatably connected with a limited rotation block 13. The setting of the limited rotation block 13 and the limited rotation groove 12 can enable the threaded rod 14 to drive the circular slider 11 to rise and fall.

[0025] Preferably, flanges 4 are fixedly connected to the outer surfaces of both ends of the valve body 1, and connecting holes are opened on the surfaces of the flanges 4.

[0026] Preferably, a threaded rod 14 is fixedly connected to the upper end of the limit rotating block 13, the threaded rod 14 passes through the cylinder 3 and is threadedly connected to the passing portion, and a rotating cap is fixedly connected to the upper end of the threaded rod 14, and the setting of the rotating cap facilitates the rotation of the threaded rod 14.

[0027] The specific working principle and use method of the utility model are as follows:

[0028] The utility model provides a fluorine-lined butterfly valve, which is connected to an external pipe through a flange 4 when in use. When the entire valve body 1 is in use, liquid will enter the valve body 1 from one end where a filter screen 6 is installed, and impurities in the liquid will be filtered through the filter screen 6, thereby preventing impurities in the liquid from scouring the valve body 1 due to the fast flow rate when passing through the butterfly valve body and contacting the valve body 1, causing wear of the valve body 1 and affecting the service life of the valve body 1. Subsequently, the threaded rod 14 is rotated by rotating the rotating handle 2, and then the circular slider 11 can be driven to slide in the through cylinder 3 through the cooperation of the limit rotating block 13 and the limit rotating groove 12, so that the plug plate 15 can be separated from the through groove 16, and the circular plate 5 can be disassembled, and the filter screen 6 can be cleaned or replaced. During installation, the limit clamping block 8 is slid into the limit clamping groove 7, and then the reverse rotation handle 2 can make the plug plate 15 slide in the opposite direction, so that the plug plate 15 can be reinserted into the through groove 16, thereby completing the limit installation of the filter screen 6.

[0029] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A fluorine-lined butterfly valve, comprising a valve body (1), characterized in that: A circular plate (5) is slidably connected to one end of the valve body (1), a filter screen (6) is fixedly connected to the inside of the circular plate (5), a limit slot (7) is provided on the upper and lower sides of one end of the valve body (1), a limit block (8) is slidably connected to the inside of the limit slot (7), the limit block (8) is fixedly connected to the circular plate (5), two positioning plates (9) are provided inside the valve body (1), both of which are fixedly connected to the circular plate (5), the positioning plates (9) are limitedly connected to the valve body (1) through a positioning mechanism, a through groove (16) is provided on the surface of the positioning plates (9), and the The positioning mechanism comprises a through cylinder (3) penetrating the valve body (1) and fixedly connected to the through position, a circular slider (11) is arranged inside the through cylinder (3), a sealing ring gasket (10) is fixedly connected to the outer end surface of the circular slider (11) and is slidably connected to the inside of the through cylinder (3), a plug plate (15) is fixedly connected to the lower end surface of the circular slider (11), the plug plate (15) is slidably connected to the inside of a corresponding through groove (16), a limited rotation groove (12) is provided on the upper end surface of the circular slider (11), and a limited rotation block (13) is rotatably connected inside the limited rotation groove (12).

2. According to claim 1, a fluorine-lined butterfly valve is characterized in that: The outer surfaces of both ends of the valve body (1) are fixedly connected to flanges (4), and the surfaces of the flanges (4) are provided with connection holes.

3. According to claim 1, a fluorine-lined butterfly valve is characterized in that: The upper end of the limit rotating block (13) is fixedly connected to a threaded rod (14), the threaded rod (14) penetrates the cylinder (3) and is threadedly connected to the penetration portion, and the upper end of the threaded rod (14) is fixedly connected to a rotating cap.

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