Hard sealing butterfly valve

Abstract

The utility model discloses a hard sealing butterfly valve which comprises a valve body, a valve seat is installed on one side of the valve body, and fixing seats are installed on the other side of the valve body and one side of the valve seat. According to the butterfly valve, the mounting plate and the mounting disc are mounted on the inner side of the fixing base through the first fixing bolts, solid impurities are blocked through the mounting disc and the liquid passing opening, the situation that water flow drives the solid impurities to impact the butterfly plate is avoided, and the service life of the butterfly valve is guaranteed; the sealing ring on the inner side of the valve seat is matched with the butterfly plate, sealing is completed between the butterfly plate and the sealing ring, and sealing treatment is conducted.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, specifically a hard-seal butterfly valve. Background Technology

[0002] A butterfly valve is a type of throttling valve and an important device in water supply and drainage pipeline systems. The closing element (valve disc or butterfly plate) of a butterfly valve is a disk that rotates around the valve shaft to achieve opening and closing. In pipelines, butterfly valves primarily function as shut-off and throttling devices. A butterfly valve mainly consists of a valve body, butterfly plate, valve stem, sealing ring, and rotating components. The butterfly plate is the opening and closing element; it rotates around its own axis within the valve body to achieve opening, closing, or regulation. However, existing hard-seal butterfly valves lack a filtration system. When water flow inside the pipeline carries impurities that impact the valve body, solid impurities can enter the valve body and continuously impact it, increasing wear and reducing the valve's service life. Utility Model Content

[0003] The purpose of this utility model is to provide a hard-seal butterfly valve to solve the problem mentioned in the background art that the existing hard-seal butterfly valve does not have a filter component. When the water flow inside the pipeline carries impurities to impact the valve body, solid impurities enter the valve body and easily cause continuous impact on the valve, increasing wear and reducing the service life of the butterfly valve.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hard-seal butterfly valve, comprising a valve body, a valve seat mounted on one side of the valve body, and a fixing seat mounted on the other side of the valve body and one side of the valve seat. One fixing seat is bolted to the valve body, and the other fixing seat, valve seat, and valve body are mounted by a second fixing bolt. An mounting plate is mounted on the inner side of the fixing seat, and multiple liquid inlets are equidistantly opened inside the mounting plate. A sealing ring is provided on the inner side of the valve seat, and the sealing ring is fixedly connected to the valve body. An upper valve stem is rotatably connected inside the valve body, and a disc plate that mates with the sealing ring is provided on the outer side of the upper valve stem.

[0005] As a preferred embodiment of this utility model: multiple mounting plates are fixedly connected at equal intervals on the outer side of the mounting plate, and a first fixing bolt is provided inside the mounting plate. The mounting plate and the fixing seat are connected by the first fixing bolt.

[0006] As a preferred embodiment of this utility model, the outer side of the fixing base is fixedly connected with multiple mounting holes at equal intervals.

[0007] As a preferred embodiment of this utility model: a lower valve stem is fixedly connected inside the disc, and the lower valve stem is rotatably connected to the valve body.

[0008] As a preferred embodiment of this utility model, a limiting block that cooperates with the disc is fixedly connected to the inner side of the valve body.

[0009] As a preferred embodiment of this utility model: a rotating assembly is provided on the top of the valve body, and the upper valve stem is fixedly connected to the rotating assembly.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting up an installation plate, a liquid inlet, an installation plate, and a No. 1 fixing bolt, enables the installation of the installation plate and installation plate on the inside of the fixing seat by using the No. 1 fixing bolt. The installation plate and liquid inlet block solid impurities, preventing water flow from carrying solid impurities to impact the disc plate and ensuring the service life of the butterfly valve. By setting up a sealing ring and a valve seat, the sealing ring on the inside of the valve seat cooperates with the disc plate, and the disc plate and the sealing ring are sealed for a closed treatment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0012] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0013] Figure 3 This is a left view of the valve seat of this utility model.

[0014] In the diagram: 1. Valve body; 2. Rotating assembly; 3. Upper valve stem; 4. Disc; 5. Lower valve stem; 6. Limit block; 7. Sealing ring; 8. Valve seat; 9. Fixed seat; 10. Mounting plate; 11. Liquid inlet; 12. Mounting plate; 13. No. 1 fixing bolt; 14. No. 2 fixing bolt; 15. Mounting hole plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1 to 3This utility model provides a technical solution: a hard-seal butterfly valve, including a valve body 1, a valve seat 8 installed on one side of the valve body 1, and a fixing seat 9 installed on the other side of the valve body 1 and one side of the valve seat 8. One fixing seat 9 is installed to the valve body 1 by bolts, and the other fixing seat 9, valve seat 8 and valve body 1 are installed by a second fixing bolt 14. An installation plate 10 is installed on the inner side of the fixing seat 9. Multiple liquid inlets 11 are equidistantly opened inside the installation plate 10. A sealing ring 7 is fixedly connected to the inner side of the valve seat 8. The sealing ring 7 is fixedly connected to the valve body 1. An upper valve stem 3 is rotatably connected inside the valve body 1. A disc 4 that cooperates with the sealing ring 7 is fixedly connected to the outer side of the upper valve stem 3. The lower valve stem 5 cooperates with the inner side of the sealing ring 7 to complete the sealing treatment.

[0017] The mounting plate 10 is fixedly connected to multiple mounting plates 12 at equal intervals on its outer side. The mounting plate 12 is provided with a first fixing bolt 13 inside. The mounting plate 12 is connected to the fixing seat 9 by the first fixing bolt 13. The mounting plate 12 on the outer side of the mounting plate 10 is fixed to the fixing seat 9 by the first fixing bolt 13. The mounting plate 10 and the liquid inlet 11 are installed and fixed on the inner side of the fixing seat 9.

[0018] The fixed base 9 is fixedly connected with multiple mounting holes 15 at equal intervals on its outer side, which facilitates the connection between the fixed base 9 and the pipeline.

[0019] The disc 4 is internally fixedly connected to a lower valve stem 5, which is rotatably connected to the valve body 1. When the upper valve stem 3 drives the disc 4 to rotate, the disc 4 drives the lower valve stem 5 to rotate, thereby improving the rotational stability of the disc 4.

[0020] The valve body 1 has a limiting block 6 fixedly connected to the inner side, which cooperates with the disc 4. The limiting block 6 restricts the rotation position of the disc 4.

[0021] The valve body 1 has a rotating assembly 2 on its top, and the upper valve stem 3 is fixedly connected to the rotating assembly 2. The upper valve stem 3 is rotated and adjusted by the rotating assembly 2.

[0022] Specifically, during use, the upper valve stem 3 is rotated and adjusted by rotating component 2. When the upper valve stem 3 rotates, it drives the outer disc 4 to rotate. When the disc 4 rotates, it drives the lower valve stem 5 to rotate. The lower valve stem 5 rotates with the valve body 1, stabilizing the disc 4. The closing position of the disc 4 is limited by the limit block 6. The valve body 1 is closed by sealing the disc 4 with the sealing ring 7 on the inner side of the valve seat 8. The mounting plate 12 and the fixing seat 9 are installed and fixed by the first fixing bolt 13. The mounting plate 10 and the liquid inlet 11 are installed in the fixing seat 9. Solid impurities are filtered through the liquid inlet 11 in the mounting plate 10 to prevent impurities and water from impacting the disc 4 together, which would affect the service life of the butterfly valve.

[0023] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hard-seal butterfly valve, comprising a valve body (1), characterized in that, A valve seat (8) is installed on one side of the valve body (1), and a fixing seat (9) is installed on the other side of the valve body (1) and one side of the valve seat (8). One of the fixing seats (9) is installed with the valve body (1) by bolts, and the other fixing seat (9), valve seat (8) and valve body (1) are installed by a second fixing bolt (14). An installation plate (10) is installed on the inner side of the fixing seat (9). Multiple liquid inlets (11) are equidistantly opened inside the installation plate (10). A sealing ring (7) is provided on the inner side of the valve seat (8). The sealing ring (7) is fixedly connected to the valve body (1). An upper valve stem (3) is rotatably connected inside the valve body (1). A disc plate (4) that cooperates with the sealing ring (7) is provided on the outer side of the upper valve stem (3).

2. The hard-seal butterfly valve according to claim 1, characterized in that: Multiple mounting plates (12) are fixedly connected at equal intervals on the outer side of the mounting plate (10). A first fixing bolt (13) is provided inside the mounting plate (12). The mounting plate (12) is connected to the fixing seat (9) by the first fixing bolt (13).

3. A hard-seal butterfly valve according to claim 1, characterized in that: Multiple mounting plates (15) are fixedly connected at equal intervals on the outer side of the fixed base (9).

4. A hard-seal butterfly valve according to claim 1, characterized in that: The lower valve stem (5) is fixedly connected inside the disc (4), and the lower valve stem (5) is rotatably connected to the valve body (1).

5. A hard-seal butterfly valve according to claim 1, characterized in that: The valve body (1) is fixedly connected to a limiting block (6) that cooperates with the disc (4).

6. A hard-seal butterfly valve according to claim 1, characterized in that: The valve body (1) is provided with a rotating assembly (2) at the top, and the upper valve stem (3) is fixedly connected to the rotating assembly (2).

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