Valve plate for manual butterfly valve
By designing the mounting frame and arc-shaped seal structure in the valve plate for manual butterfly valve, the problem of excessive wear of the seal ring during long-term use is solved, and better sealing is achieved through protective parts and seal ring protection bolts and Service life.
Patent Information
- Application Number
- CN202421325585.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-12
AI Technical Summary
During long-term use of manual butterfly valves, the accumulation of debris in the inner wall of the valve body causes friction between the seal ring and the debris, the seal ring wears too fast and has poor sealing performance.
A valve plate for manual butterfly valve is designed, adopting a structure of a mounting frame and a seal. The seal is limited to the outer surface of the mounting frame, and the arcuate surface fits with the inner wall of the pipe to reduce friction of the sealing ring, and passes protective parts and seals. Ring protection bolts to avoid being covered with debris.
It effectively improves the sealing of the valve plate, extends the service life of the sealing ring, avoids the problem of bolts being blocked by debris, and provides better protection.
Smart Images
Figure CN222479469U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valve plates, in particular to a valve plate for a manual butterfly valve. Background Art
[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve that can be used for on-off control of low-pressure pipeline media. A butterfly valve refers to a valve whose closing member is a disc that rotates around the valve axis to achieve opening and closing. The valve can be used to control the flow of various types of fluids such as air, water, steam, and various corrosive media.
[0003] Some equipment on the market generally installs a sealing ring around the disc plate, so that when the disc plate is installed in the valve body, the surrounding area can fully contact the inner wall of the valve body, thereby improving the sealing, and it is not easy to have a loose seal with the inner wall of the valve body. The clamping ring is clamped with the clamping groove, and a trapezoidal fastening block is provided on the inner wall of the clamping groove, and a limiting protrusion is provided at one end of the clamping ring, so that the clamping ring can be more tightly clamped with the clamping groove, so that the sealing ring is not easy to loosen.
[0004] However, during the actual use of the above-mentioned equipment, debris will accumulate on the inner wall of the butterfly valve during long-term use, which will cause the sealing ring set on the outer surface of the valve plate to rub against the debris when the valve plate rotates, causing the sealing ring to wear too quickly, thereby making the sealing of the valve plate poor. In view of this, we propose a valve plate for a manual butterfly valve. Utility Model Content
[0005] The utility model aims to provide a valve plate for a manual butterfly valve to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above object, the utility model provides the following technical solution: a valve plate for a manual butterfly valve, comprising a valve plate body, a mounting groove is provided on the outer surface of the valve plate body, a sealing structure is provided on one side of the valve plate body, and the sealing structure comprises:
[0007] A mounting piece, wherein the center of one side of the valve plate body is fixedly connected with the mounting piece, a threaded hole is opened on one side of the mounting piece, a mounting frame is clamped inside the mounting piece, the mounting frame is arranged in a cross shape, and a bolt is arranged on one side of the mounting frame;
[0008] A card slot is provided at the end of the mounting frame, a card slot is provided inside the card slot, a card piece is connected inside the card slot, a sealing piece is fixedly connected to the outer surface of the card piece, and an arc surface is provided on the outer surface of the sealing piece near the valve plate body.
[0009] Preferably, one end of the bolt passes through the center of the mounting frame and the mounting piece to the inside of the threaded hole, and the size of the bolt is adapted to the size of the threaded hole, which allows the bolt to be well installed in the threaded hole.
[0010] Preferably, the size of the sealing member is matched with the size of the valve plate body, and a mounting frame is sleeved inside the sealing member, so that the sealing member can be well mounted on the outer surface of the mounting frame.
[0011] Preferably, the threaded hole is arranged at the center of one side of the mounting piece, a placement groove is opened on one side of the mounting piece, and a mounting frame is clamped inside the placement groove, which can enable the mounting frame to be better clamped into the interior of the mounting piece.
[0012] Preferably, an embedding hole is opened on one side of the mounting piece, a short rod is clamped inside the embedding hole, one end of the short rod is fixedly connected to a protective piece, and a sealing ring is fixedly connected to a side of the protective piece close to the bolt.
[0013] Preferably, the number of the short rods is four, and the four short rods are evenly distributed in a circular array on one side of the protective member, the center of the sealing ring corresponds to the center of the bolt, and the other side of the protective member is arranged in an arc shape.
[0014] Compared with the prior art, the utility model provides a valve plate for a manual butterfly valve, which has the following beneficial effects:
[0015] 1. The valve plate of the manual butterfly valve, in order to prevent the sealing ring on the outer surface of the valve plate from wearing out too quickly after friction with debris during long-term use, the mounting bracket is inserted into the inside of the mounting part, and the bolts are used to pass through the center of the mounting bracket and the mounting part into the threaded hole. This allows the mounting bracket to be well installed inside the mounting part, and then the clamp is clamped into the inside of the clamping groove, so that the seal is limited at the outer surface of the mounting bracket, so that the outer surface of the seal fits the inner wall of the pipeline, and the outer surface of the seal is provided with an arc surface near the valve plate body, which allows the seal to form a partition layer between the medium in the pipeline and the outer surface of the valve plate body, which makes the sealing of the valve plate body better. At the same time, when the valve plate body rotates, the seal will first contact with the debris on the inner wall of the pipeline, thereby reducing the friction of the sealing ring on the outer surface of the valve plate body and extending the service life.
[0016] 2. The valve plate of the manual butterfly valve, in order to prevent the bolts from being blocked by debris in the water, the short rod is inserted into the embedded hole, which can make the sealing ring cover the bolt at the center, and then cooperate with the protective piece to seal the bolt well, so that the bolt can avoid contact with the medium in the pipeline, and can also prevent the bolt from being covered by debris. At the same time, the outer surface of the protective piece is arranged in an arc shape, which can effectively disperse the force when the protective piece is impacted, so that the bolt can be better protected. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the three-dimensional left-view structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the explosion structure of the valve plate of the utility model;
[0019] Figure 3 This is a schematic diagram of the exploded cross-sectional structure of the sealing device of the utility model;
[0020] Figure 4 This is an enlarged structural diagram of the A area of the utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the protective element of the utility model.
[0022] In the figure: 1. valve plate body; 2. mounting groove; 3. mounting part; 4. mounting frame; 5. clamping groove; 6. clamping part; 7. sealing part; 8. bolt; 9. threaded hole; 10. embedded hole; 11. short rod; 12. protective part; 13. sealing ring. DETAILED DESCRIPTION
[0023] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a valve plate for a manual butterfly valve, comprising a valve plate body 1, a mounting groove 2 is provided on the outer surface of the valve plate body 1, a sealing structure is arranged on one side of the valve plate body 1, and the sealing structure comprises a mounting member 3, a threaded hole 9, a mounting frame 4, a bolt 8, a clamping groove 5, a clamping member 6 and a sealing member 7.
[0024] In the embodiment of the utility model, a mounting member 3 is fixedly connected at the center of one side of the valve plate body 1, a placement groove is provided on one side of the mounting member 3, and a mounting frame 4 is clamped inside the placement groove, which can make the mounting frame 4 better inserted into the mounting member 3, an embedding hole 10 is provided on one side of the mounting member 3, and a short rod 11 is clamped inside the embedding hole 10, the number of the short rods 11 is four, and the four short rods 11 are evenly distributed in a circular array on one side of the protective member 12, one end of the short rod 11 is fixedly connected to the protective member 12, and the other side of the protective member 12 is arranged in an arc shape This can effectively disperse the force when the protective member 12 is impacted, so that the bolt 8 can be better protected. A sealing ring 13 is fixedly connected to the side of the protective member 12 close to the bolt 8, and the center of the sealing ring 13 corresponds to the center of the bolt 8. In this way, the short rod 11 can be inserted into the embedded hole 10, so that the sealing ring 13 can cover the bolt 8 at the center, and then cooperate with the protective member 12 to seal the bolt 8 well, so that the bolt 8 can avoid contact with the medium in the pipeline, and can also prevent the bolt 8 from being covered by debris.
[0025] In addition, a threaded hole 9 is provided on one side of the mounting member 3, and the threaded hole 9 is arranged at the center of one side of the mounting member 3. A mounting frame 4 is clamped inside the mounting member 3, and the mounting frame 4 is arranged in a cross shape. A bolt 8 is provided on one side of the mounting frame 4, and one end of the bolt 8 passes through the center of the mounting frame 4 and the mounting member 3 to the inside of the threaded hole 9. The size of the bolt 8 is adapted to the size of the threaded hole 9, which allows the bolt 8 to be well installed inside the threaded hole 9. A slot 5 is provided on the end of the mounting frame 4, and a clamp 6 is clamped inside the slot 5. A sealing member 7 is fixedly connected to the outer surface of the clamp 6, and an arc surface is provided on the outer surface of the sealing member 7 near the valve plate body 1. The size of the sealing member 7 is adapted to the size of the valve plate body 1, and the mounting frame 4 is sleeved inside the sealing member 7, which allows the sealing member 7 to be well installed on the outer surface of the mounting frame 4.
[0026] In the utility model, when in use, the mounting bracket 4 is inserted into the mounting member 3, and the bolt 8 is passed through the center of the mounting bracket 4 and the mounting member 3 into the threaded hole 9, which can make the mounting bracket 4 be well installed in the mounting member 3, and then the clamping member 6 is inserted into the clamping groove 5, so that the seal 7 is limited at the outer surface of the mounting bracket 4, so that the outer surface of the seal 7 fits the inner wall of the pipeline, and the outer surface of the seal 7 is provided with an arc surface near the valve plate body 1, which can make the seal 7 form a partition layer between the medium in the pipeline and the outer surface of the valve plate body 1, which makes the sealing of the valve plate body 1 better, and at the same time, when the valve plate body 1 rotates, the seal 7 will first contact with the debris on the inner wall of the pipeline, so that the friction of the sealing ring on the outer surface of the valve plate body 1 is reduced, and the service life is longer.
[0027] Furthermore, the short rod 11 is inserted into the embedded hole 10, which can allow the sealing ring 13 to cover the bolt 8 at the center, and then cooperate with the protective piece 12 to seal the bolt 8 well, so that the bolt 8 can avoid contact with the medium in the pipeline, and can also prevent the bolt 8 from being covered by debris. At the same time, the outer surface of the protective piece 12 is arranged in an arc shape, which can effectively disperse the force when the protective piece 12 is impacted, so that the bolt 8 can be better protected.
[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A valve plate for a manual butterfly valve, comprising a valve plate body (1), wherein the outer surface of the valve plate body (1) is provided with a mounting groove (2), characterized in that: A sealing structure is provided on one side of the valve plate body (1), and the sealing structure comprises: A mounting member (3), the center of one side of the valve plate body (1) is fixedly connected with the mounting member (3), one side of the mounting member (3) is provided with a threaded hole (9), the interior of the mounting member (3) is clamped with a mounting frame (4), the mounting frame (4) is arranged in a cross shape, and one side of the mounting frame (4) is provided with a bolt (8); A card slot (5) is provided at the end of the mounting frame (4), a card slot (5) is clamped inside the card slot (5), a sealing member (7) is fixedly connected to the outer surface of the card slot (6), and an arc surface is provided on the outer surface of the sealing member (7) near the valve plate body (1).
2. The valve plate for a manual butterfly valve according to claim 1, characterized in that: One end of the bolt (8) passes through the center of the mounting frame (4) and the mounting member (3) to the inside of the threaded hole (9), and the size of the bolt (8) is adapted to the size of the threaded hole (9).
3. The valve plate for a manual butterfly valve according to claim 1, characterized in that: The size of the sealing member (7) is matched to the size of the valve plate body (1), and a mounting frame (4) is sleeved inside the sealing member (7).
4. The valve plate for a manual butterfly valve according to claim 1, characterized in that: The threaded hole (9) is arranged at the center of one side of the mounting member (3); a placement groove is provided on one side of the mounting member (3), and a mounting frame (4) is clamped inside the placement groove.
5. The valve plate for a manual butterfly valve according to claim 1, characterized in that: An embedding hole (10) is provided on one side of the mounting member (3), a short rod (11) is clamped inside the embedding hole (10), one end of the short rod (11) is fixedly connected to a protective member (12), and a sealing ring (13) is fixedly connected to the side of the protective member (12) close to the bolt (8).
6. The valve plate for a manual butterfly valve according to claim 5, characterized in that: The number of the short rods (11) is four, and the four short rods (11) are evenly distributed in a circular array on one side of the protective member (12), the center of the sealing ring (13) corresponds to the center of the bolt (8), and the other side of the protective member (12) is arranged in an arc shape.