Fluorine-lined butterfly valve

Abstract

The utility model relates to a fluorine-lined butterfly valve. A valve body structure is arranged below the fluorine-lined butterfly valve; a butterfly plate is movably connected in the valve body structure; a gasket is arranged between the valve body structure and the butterfly plate; the butterfly plate is sealed by the gasket; and a gap between the valve body structure and the butterfly plate is sealed to form a switch of the fluorine-lined butterfly valve. In the structure, the gasket is arranged between the valve body structure and the butterfly plate; according to the fluorine-lined butterfly valve, the gasket is arranged on the butterfly plate and seals the butterfly plate, the gasket is of a fixed structure, abrasion can be relieved and reduced, the service life of the fluorine-lined butterfly valve is prolonged, and the problem that in an existing butterfly valve, due to the fact that the butterfly plate and a valve body structure are adopted in the butterfly valve for sealing, the service life of the butterfly valve is prolonged is solved. The technical problem that in the prior art, sealing is conducted by means of the manufacturing precision between a butterfly plate and a valve body structure or a sealing gasket is arranged on the butterfly plate, and due to the fact that the butterfly plate is a rotating piece, abrasion is accelerated during rotation, and leakage of the butterfly valve is caused is solved.

Description

Technical Field

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

[0002] In the existing butterfly valve, since the butterfly valve adopts a butterfly plate and a valve body structure for sealing, the existing technology relies on the manufacturing accuracy between the butterfly plate and the valve body structure or sets a sealing gasket on the butterfly plate for sealing. Since the butterfly plate is a rotating part, the rotation accelerates the wear, thereby causing the butterfly valve to leak. Utility Model Content

[0003] The purpose of the implementation mode of the utility model is to provide a fluorine-lined butterfly valve which can slow down and reduce wear.

[0004] In order to achieve the above purpose, the embodiment of the utility model designs a fluorine-lined butterfly valve, including:

[0005] A valve body structure, wherein the valve body structure is arranged below the fluorine-lined butterfly valve;

[0006] A butterfly plate movably connected to the butterfly plate in the valve body structure;

[0007] A gasket is arranged between the valve body structure and the butterfly plate; the gasket seals the butterfly plate; and the gap between the valve body structure and the butterfly plate is sealed to form the switch of the fluorine-lined butterfly valve.

[0008] Furthermore, in the fluorine-lined butterfly valve of the present invention, a movably connected valve stem runs through the middle of the valve body structure, one end of the valve stem is movably connected to the lower end of the valve body structure; the other end of the valve stem is connected to a worm gear device arranged above the valve body structure.

[0009] Furthermore, in the fluorine-lined butterfly valve of the present invention, the butterfly plate is symmetrically fixed at the center position of the valve stem, and an O-ring is fixed between the butterfly plate and the gasket.

[0010] Furthermore, in the fluorine-lined butterfly valve of the present invention, the liner is fixed around the aperture opened on the valve body structure.

[0011] Furthermore, in the fluorine-lined butterfly valve of the utility model, the valve body structure further includes:

[0012] A lower valve body, the lower valve body being fixed below the valve body structure;

[0013] An upper valve body is fixed to the lower valve body by bolts; a hole is set at the center after the upper valve body and the lower valve body are combined;

[0014] A valve seat is fixed within the aperture; and the liner is fixed within the valve seat.

[0015] Furthermore, in the fluorine-lined butterfly valve of the present invention, ear holes are provided on the upper valve body and the lower valve body, and the bolts are inserted into the ear holes.

[0016] Furthermore, in the fluorine-lined butterfly valve of the present invention, mounting holes are provided on both sides of the upper valve body and the lower valve body.

[0017] Furthermore, in the fluorine-lined butterfly valve of the present invention, a worm gear device is fixed above the valve body structure, and the worm gear device is connected to the valve stem to drive the butterfly plate to rotate.

[0018] Furthermore, in the fluorine-lined butterfly valve of the present invention, the lower portion of the valve stem is inserted into a circular hole at the bottom of the lower valve body arranged in the valve body structure, and a lower sleeve is placed between the lower valve body and the valve stem.

[0019] Furthermore, in the fluorine-lined butterfly valve of the utility model, the middle part of the valve stem passes through the top of the upper valve body in the valve body structure, and a middle sleeve is placed between the upper valve body and the valve stem.

[0020] Compared with the prior art, the implementation method of the utility model adopts a valve body structure disposed below the fluorine-lined butterfly valve; a butterfly plate is movably connected in the valve body structure; a gasket is disposed between the valve body structure and the butterfly plate; the gasket seals the butterfly plate; and the gap between the valve body structure and the butterfly plate is sealed to form the switch of the fluorine-lined butterfly valve. In the above structure, a gasket is disposed between the valve body structure and the butterfly plate; the gasket seals the butterfly plate. Since the gasket is a fixed structure, it can slow down the wear and reduce the wear, thereby extending the life of the fluorine-lined butterfly valve of the utility model, and solving the technical problem that in the existing butterfly valve, since the butterfly valve adopts the butterfly plate and the valve body structure for sealing, the prior art relies on the manufacturing accuracy between the butterfly plate and the valve body structure or sets a sealing gasket on the butterfly plate for sealing, and since the butterfly plate is a rotating part, the rotation accelerates the wear, thereby causing the butterfly valve to leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure in the AA direction. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0024] The embodiment of the utility model relates to a fluorine-lined butterfly valve, such as Figure 1 and Figure 2 As shown, including:

[0025] A valve body structure 20 is provided below the fluorine-lined butterfly valve in this embodiment; the valve body structure 20 in this embodiment constitutes the on-off structure of the fluorine-lined butterfly valve in this embodiment;

[0026] A butterfly plate 8 is movably connected in the valve body structure 20; the butterfly plate 8 is used to open and close the fluorine-lined butterfly valve in this embodiment;

[0027] A gasket 7 is arranged between the valve body structure 20 and the butterfly plate 8; the gasket 7 seals the butterfly plate 8; the gap between the valve body structure 20 and the butterfly plate 8 is sealed to form the switch of the fluorine-lined butterfly valve. The gasket 7 mainly plays a sealing role; since the gasket 7 is a fixed structure, it can slow down the wear and tear, reduce the wear and tear, and achieve the extension of the life of the fluorine-lined butterfly valve of this embodiment, and solve the technical problem that in the existing butterfly valve, since the butterfly valve adopts the butterfly plate 8 and the valve body structure 20 for sealing, the existing technology relies on the manufacturing accuracy between the butterfly plate 8 and the valve body structure 20 or sets a sealing gasket on the butterfly plate for sealing, and since the butterfly plate 8 is a rotating part, the rotation accelerates the wear, thereby causing the butterfly valve to leak.

[0028] In order to achieve the above technical effects, the fluorine-lined butterfly valve in this embodiment is as follows: Figure 1 and Figure 2 As shown, a movably connected valve stem 2 passes through the middle of the valve body structure 20 , and one end of the valve stem 2 is movably connected to the lower end of the valve body structure 20 ; the other end of the valve stem 20 is connected to a worm gear device 11 arranged above the valve body structure 20 .

[0029] In order to achieve the above technical effects, the fluorine-lined butterfly valve in this embodiment is as follows: Figure 1 and Figure 2 As shown, the butterfly plate 8 is symmetrically fixed at the center of the valve stem 2. The symmetrically fixed butterfly plate 8 can rotate better and ensure better sealing. The O-ring 5 is fixed between the butterfly plate 8 and the gasket 7 to increase the strength of the seal. At the same time, the butterfly plate 8 and the gasket 7 are generally made of polytetrafluoroethylene, so this type of butterfly valve is called a fluorine-lined butterfly valve.

[0030] In order to achieve the above technical effects, the fluorine-lined butterfly valve in this embodiment is as follows: Figure 1 and Figure 2 As shown, the gasket 7 is fixed around the aperture opened on the valve body structure 20. The gasket 7 is fixed around the aperture on the valve body structure 20 and can be well sealed.

[0031] In order to achieve the above technical effects, the fluorine-lined butterfly valve in this embodiment is as follows: Figure 1 and Figure 2 As shown, the valve body structure 20 further includes:

[0032] The lower valve body 1 is fixed below the valve body structure 20 ; the lower valve body 1 serves as the lower structure of the valve body structure 20 , and mainly plays a supporting and fixing role.

[0033] The upper valve body 21 is fixed above the lower valve body 1 by bolts; an aperture is set in the center after the upper valve body 1 and the lower valve body 11 are combined; the upper valve body 21 serves as the upper structure of the valve body structure 20; and mainly plays the role of supporting the worm gear device 11.

[0034] The valve seat 4 is fixed in the aperture; the liner 7 is fixed in the valve seat 4. The valve seat 4 is mainly used to install the liner 7.

[0035] In order to achieve the above technical effects, the fluorine-lined butterfly valve in this embodiment is as follows: Figure 1 and Figure 2 As shown, ear holes 12 are provided on the upper valve body 21 and the lower valve body 1, and bolts 6 are inserted into the ear holes 12. The bolts 6 are used to fix the upper valve body 21 and the lower valve body 1.

[0036] In order to achieve the above technical effects, the fluorine-lined butterfly valve in this embodiment is as follows: Figure 1 and Figure 2 As shown, mounting holes 13 are provided on both sides of the upper valve body 21 and the lower valve body 1. The mounting holes 13 are mainly used when the fluorine-lined butterfly valve in this embodiment is installed on a pipeline.

[0037] In order to achieve the above technical effects, the fluorine-lined butterfly valve in this embodiment is as follows: Figure 1 and Figure 2 As shown, a worm gear device 11 is fixed above the valve body structure 20 , and the worm gear device 11 is connected to the valve stem 2 to drive the butterfly plate 8 to rotate.

[0038] In order to achieve the above technical effects, the fluorine-lined butterfly valve in this embodiment is as follows: Figure 1 and Figure 2 As shown, the lower part of the valve stem 2 is inserted into the circular hole at the bottom of the lower valve body 1 arranged in the valve body structure 20, and the lower shaft sleeve 3 is placed between the lower valve body 1 and the valve stem 2.

[0039] In order to achieve the above technical effects, the fluorine-lined butterfly valve in this embodiment is as follows: Figure 1 and Figure 2 As shown, the middle part of the valve stem 2 passes through the top of the upper valve body in the valve body structure 20, and the middle sleeve 9 is placed between the upper valve body 21 and the valve stem 2. The installation and use of the lower sleeve 3 and the middle sleeve 9 are mainly to ensure the installation accuracy of the valve stem 2.

[0040] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A fluorine-lined butterfly valve, characterized in that: include: A valve body structure, wherein the valve body structure is arranged below the fluorine-lined butterfly valve; A butterfly plate movably connected to the butterfly plate in the valve body structure; A gasket is arranged between the valve body structure and the butterfly plate; the gasket seals the butterfly plate; and the gap between the valve body structure and the butterfly plate is sealed to form the switch of the fluorine-lined butterfly valve.

2. The fluorine-lined butterfly valve according to claim 1 is characterized in that: A movably connected valve stem runs through the middle of the valve body structure, one end of the valve stem is movably connected to the lower end of the valve body structure; the other end of the valve stem is connected to a worm gear device arranged above the valve body structure.

3. The fluorine-lined butterfly valve according to claim 2 is characterized in that: The butterfly plate is symmetrically fixed on the center position of the valve stem, and an O-ring is fixed between the butterfly plate and the gasket.

4. The fluorine-lined butterfly valve according to claim 1 is characterized in that: The gasket is fixed around the aperture opened on the valve body structure.

5. The fluorine-lined butterfly valve according to claim 1, characterized in that: The valve body structure further comprises: A lower valve body, the lower valve body being fixed below the valve body structure; An upper valve body is fixed to the lower valve body by bolts; a hole is set at the center after the upper valve body and the lower valve body are combined; A valve seat is fixed within the aperture; and the liner is fixed within the valve seat.

6. The fluorine-lined butterfly valve according to claim 5, characterized in that: Ear holes are arranged on the upper valve body and the lower valve body, and the bolts are inserted into the ear holes.

7. The fluorine-lined butterfly valve according to claim 5, characterized in that: Installation and fixing holes are arranged on both sides of the upper valve body and the lower valve body.

8. The fluorine-lined butterfly valve according to claim 1, characterized in that: A worm gear device is fixed above the valve body structure, and the worm gear device is connected to the valve stem to drive the butterfly plate to rotate.

9. The fluorine-lined butterfly valve according to claim 8, characterized in that: The lower part of the valve stem is inserted into a circular hole at the bottom of a lower valve body arranged in the valve body structure, and a lower shaft sleeve is placed between the lower valve body and the valve stem.

10. The fluorine-lined butterfly valve according to claim 8, characterized in that: The middle part of the valve stem passes through the top of the upper valve body in the valve body structure, and a middle shaft sleeve is placed between the upper valve body and the valve stem.

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