Double-eccentric metal sealing valve seat

Abstract

The utility model relates to a double-eccentric metal sealing valve seat which comprises a valve seat body, a first annular groove is formed in the upper end face of the valve seat body, a convex ring part is arranged on the inner side edge of the first annular groove, a second annular groove is formed in the inner side edge of the convex ring part, and a baffle ring is obliquely arranged on the inner side of the second annular groove. According to the double-eccentric metal sealing valve seat, the use pressure of the valve seat can be relieved to a certain extent, and the service life of the valve seat is prolonged.

Description

Technical Field

[0001] The utility model particularly relates to a double-eccentric metal sealing valve seat. Background Art

[0002] Currently, butterfly valves are primarily used for drainage systems in water plants, power plants, steel mills, chemical plants, water source projects, and environmental infrastructure construction. They are particularly well-suited for use as regulating and intercepting devices in water pipelines. Existing butterfly valve seats struggle to buffer the media entering the seat, significantly impacting the valve's service life. Therefore, the market urgently needs a butterfly valve seat that can address this issue. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a double-eccentric metal sealing valve seat.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a double eccentric metal sealing valve seat, including a valve seat body, the upper end face of the valve seat body is provided with a first annular groove, the inner side edge of the first annular groove is provided with a convex ring portion, the inner side edge of the convex ring portion is provided with a second annular groove, and a retaining ring is provided obliquely on the inner side.

[0005] Preferably, the top of the retaining ring extends upward to form a folding plate, and the folding plate is bent toward the outside of the outer valve seat body.

[0006] Preferably, the bending angle of the folding plate and the retaining ring is 105°.

[0007] Preferably, a sealing groove is formed at the bottom of the lower end surface of the valve seat body.

[0008] Preferably, the sealing groove is located directly below the convex ring portion.

[0009] Preferably, a support seat is formed outside the first annular groove.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the double-eccentric metal sealing valve seat is provided with the first annular groove and the second annular groove. When the medium enters the valve seat, the impurities can be buffered by the first annular groove and the second annular groove, thereby preventing the impurities from directly impacting the interior of the valve seat body, which can alleviate the operating pressure of the valve seat to a certain extent and extend the service life of the valve seat, and the provision of the convex ring part can effectively maintain the elasticity of the valve seat body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0012] Markings in the figure: 1. valve seat body; 2. first annular groove; 3. convex ring; 4. second annular groove; 5. retaining ring; 6. folding plate; 7. sealing groove; 8. support seat. DETAILED DESCRIPTION

[0013] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description.

[0014] like Figure 1 As shown, a double eccentric metal sealing valve seat includes a valve seat body 1, the upper end surface of the valve seat body 1 is provided with a first annular groove 2, the inner side edge of the first annular groove 2 is provided with a convex ring portion 3, the inner side edge of the convex ring portion 3 is provided with a second annular groove 4, and the inner side of the convex ring portion 3 is inclinedly provided with a retaining ring 5.

[0015] In this embodiment, a folding plate 6 is formed on the top of the retaining ring 5 and extends upward. The folding plate 6 is bent toward the outside of the outer valve seat body 1 .

[0016] In this embodiment, the bending angle of the folding plate 6 and the retaining ring 5 is 105°.

[0017] In this embodiment, a sealing groove 7 is formed at the bottom of the lower end surface of the valve seat body 1 .

[0018] In this embodiment, the sealing groove 7 is located directly below the convex ring portion 3 .

[0019] In this embodiment, a support seat 8 is formed outside the first annular groove 2 .

[0020] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equalization change and modification made to the above embodiment by any technician familiar with the field without departing from the content of the technical solution of the present invention based on the technical essence of the present invention shall fall within the scope of the present invention.

Claims

1. A double eccentric metal sealing valve seat, characterized by: The valve seat comprises a valve seat body, the upper end surface of which is provided with a first annular groove, the inner side edge of which is provided with a convex ring portion, the inner side edge of which is provided with a second annular groove, the inner side of which is provided with a retaining ring inclined thereon.

2. The double eccentric metal sealing valve seat according to claim 1, characterized in that: The top of the retaining ring extends upward to form a folding plate, and the folding plate is bent toward the outside of the outer valve seat body.

3. The double eccentric metal sealing valve seat according to claim 2, characterized in that: The bending angle of the folding plate and the retaining ring is 105°.

4. The double eccentric metal sealing valve seat according to claim 1, characterized in that: A sealing groove is formed at the bottom of the lower end surface of the valve seat body.

5. The double eccentric metal sealing valve seat according to claim 4, characterized in that: The sealing groove is located directly below the convex ring portion.

6. The double eccentric metal sealing valve seat according to claim 1, characterized in that: A support seat is formed outside the first annular groove.

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