Butterfly valve capable of preventing deviation of sealing rubber ring

Abstract

The utility model relates to the technical field of valves, and discloses a butterfly valve capable of preventing a sealing rubber ring from deviating, which comprises a valve body, a valve plate is arranged in the valve body, a mounting groove is arranged on the surface of the valve plate, a sealing ring is arranged in the mounting groove, a sliding groove is arranged on the side face of the valve plate, and the sliding groove penetrates through the surface of the sealing ring. According to the butterfly valve capable of preventing deviation of the sealing rubber ring, a valve plate and a mounting groove are used in cooperation, sealing of the device can be improved through a sealing ring, a mounting block can be connected in an inserted mode through a sliding groove and a containing groove, so that when the mounting block is connected in an inserted mode, a bolt can be rotated, and the surface of the bolt can push a second push block to move; furthermore, a second push block can push a sliding plate and a first push block to move, so that the first push block can be clamped in a placement groove, the sealing ring can be fixed, the sealing ring can be fixed more conveniently, and the sealing ring is prevented from falling off.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a butterfly valve that prevents the sealing ring from shifting. Background Technology

[0002] With the continuous development of science and technology, butterfly valves, also known as flap valves, are a type of simple regulating valve that can be used for the on / off control of low-pressure pipeline media. A butterfly valve is a type of valve in which the closing element (valve disc or butterfly plate) is a disc that rotates around the valve shaft to achieve opening and closing.

[0003] An existing butterfly valve for preventing sealing ring misalignment can be found in Chinese Utility Model Patent No. CN221033989U, which discloses a butterfly valve for preventing sealing ring misalignment. It includes a valve body, a valve stem, and a butterfly plate. The valve stem passes through through holes in the valve body and butterfly plate and extends to their bottom. Two limiting grooves are formed in the middle of the outer ring of the butterfly plate, and a matching inner rubber ring is installed inside the limiting grooves. An outer rubber ring is fixed to the inner ring of the valve body. A set of bolt holes matching the pipe flange is formed at both the front and rear ends of the valve body. Compared to traditional fixed sealing rings on the market, by setting a rotatable inner rubber ring, it still has the traditional sealing effect when in a static sealing state. As the valve is opened and rotated, the friction of the inner ring of the valve body causes it to rotate, thus preventing the sealing ring from misaligning or falling off due to friction. At the same time, a double-layer sealing structure is set to increase the overall sealing effect.

[0004] The aforementioned device uses a rotatable inner rubber ring. When in a static sealing state, it still has the traditional sealing effect. However, as the valve is opened and rotated, the friction of the inner ring of the valve body causes it to rotate, thus preventing the sealing ring from shifting or falling off due to friction. However, the aforementioned device is not convenient for quickly fixing the sealing ring, which can easily consume a lot of time. Therefore, we propose a butterfly valve to prevent the sealing ring from shifting. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a butterfly valve for preventing the sealing ring from shifting. It has the advantages of strong practicality, good stability, easy and quick fixing of the sealing ring, and easy replacement of the sealing ring. It solves the problem that traditional butterfly valves for preventing sealing ring shifting are not convenient for quick fixing of the sealing ring, which easily consumes a lot of time during the fixing process.

[0006] This utility model provides the following technical solution: a butterfly valve for preventing the sealing ring from shifting, comprising a valve body, a valve plate inside the valve body, an installation groove on the surface of the valve plate, a sealing ring inside the installation groove, a sliding groove on the side of the valve plate, the sliding groove penetrating the surface of the sealing ring, a placement groove on the inner wall of the sliding groove, and an installation structure inside the sliding groove.

[0007] The mounting structure includes a mounting block, the surface of which has a rectangular groove, and the interior of which has a limiting groove. A first push block is slidably connected inside the rectangular groove. A sliding plate is provided on one side of the first push block near the interior of the mounting block, and a second push block is provided on the other side of the sliding plate. A spring is provided between the limiting groove and the sliding plate, and a bolt is threadedly connected inside the mounting block.

[0008] As a preferred embodiment of this utility model, the surface of the bolt near the placement groove is conical, and the top of the bolt has an internal hexagonal groove.

[0009] As a preferred embodiment of this utility model, there are two mounting slots, both of which are formed on the surface of the valve plate and are symmetrical to each other.

[0010] As a preferred embodiment of this invention, the surface of the sealing ring is arc-shaped, and the material of the sealing ring is rubber.

[0011] As a preferred embodiment of this utility model, the valve body is provided with a valve seat on its surface, and an adjusting rod is provided in a circular groove opened at the top of the valve seat, with the surface of the adjusting rod installed inside the valve plate.

[0012] As a preferred embodiment of this utility model, flanges are provided on both sides of the valve body, and bolt holes are provided on the side of the flanges, with the bolt holes penetrating the other side of the flanges.

[0013] As a preferred embodiment of this utility model, the surfaces of the first push block and the second push block are both arc-shaped, and the upper surface of the inner wall of the rectangular groove is in the same plane as the upper surface of the inner wall of the placement groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This butterfly valve, designed to prevent the sealing ring from shifting, utilizes the cooperation between the valve plate and the mounting groove. The sealing ring enhances the device's sealing performance. The pre-cut sliding groove and placement groove allow for the insertion of the mounting block. During insertion, the bolt can be rotated, causing the bolt surface to push the second push block. This second push block then pushes the sliding plate and the first push block, allowing the first push block to engage inside the placement groove, thus securing the sealing ring and making it easier to fix, preventing the sealing ring from falling off.

[0016] 2. This butterfly valve, which prevents the sealing ring from shifting, allows the bolt to be rotated in the opposite direction. When the bolt is rotated out, the spring can push the slide plate to move, so that the first push block and the second push block can move into the interior of the mounting block, thereby facilitating the removal of the mounting block and making it easier to replace the sealing ring. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point A.

[0021] In the diagram: 1. Valve body; 2. Valve plate; 3. Mounting groove; 4. Sealing ring; 5. Slide groove; 6. Placement groove; 7. Mounting structure; 701. Mounting block; 702. Rectangular groove; 703. Limiting groove; 704. First push block; 705. Slide plate; 706. Second push block; 707. Spring; 708. Bolt; 8. Valve seat; 9. Adjusting rod; 10. Flange; 11. Bolt hole. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4A butterfly valve for preventing the sealing ring from shifting includes a valve body 1, a valve plate 2 inside the valve body 1, an installation groove 3 on the surface of the valve plate 2, a sealing ring 4 inside the installation groove 3, a sliding groove 5 on the side of the valve plate 2, and the sliding groove 5 penetrates the surface of the sealing ring 4. A placement groove 6 is provided on the inner wall of the sliding groove 5, and an installation structure 7 is provided inside the sliding groove 5.

[0024] The mounting structure 7 includes a mounting block 701. A rectangular groove 702 is formed on the surface of the mounting block 701. A limiting groove 703 is formed inside the mounting block 701. A first push block 704 is slidably connected inside the rectangular groove 702. A sliding plate 705 is provided on one side of the first push block 704 near the interior of the mounting block 701, and a second push block 706 is provided on the other side of the sliding plate 705. A spring 707 is provided between the limiting groove 703 and the sliding plate 705. A bolt 708 is threadedly connected inside the mounting block 701. Two symmetrical mounting grooves 3 are formed on the surface of the valve plate 2 to facilitate the installation of sealing rings 4 inside both mounting grooves 3. The surface of the sealing rings 4 is arc-shaped, allowing for better sealing of the valve body 1. Two mounting grooves 704 are formed on both sides of the valve plate 2. A sliding groove 5 is provided, which penetrates the surface of the sealing ring 4. The sliding groove 5 facilitates the installation of the mounting block 701. When the sealing ring 4 is fixed, the bolt 708 can be rotated. When the bolt 708 rotates and moves downward, the surface of the bolt 708 will press against the second push block 706. The second push block 706 will push the sliding plate 705 and the first push block 704 into the placement groove 6, so that the first push block 704 can be engaged in the placement groove 6, thereby fixing the sealing ring 4. At the same time, when the bolt 708 is turned out in the opposite direction, the spring 707 can push the sliding plate 705 to move, so that the sliding plate 705 can drive the second push block 706 to move, thereby facilitating the removal of the mounting block 701.

[0025] Please see Figure 1 The valve body 1 has a valve seat 8 on its surface. An adjusting rod 9 is provided in the circular groove on the top of the valve seat 8. The surface of the adjusting rod 9 is installed inside the valve plate 2. The valve seat 8 installed on the surface of the valve body 1 facilitates the use of the adjusting rod 9, so that the adjusting rod 9 can adjust the angle of the valve plate 2 when it rotates, thereby controlling the flow rate.

[0026] Please see Figure 1 Flanges 10 are provided on both sides of the valve body 1. Bolt holes 11 are provided on the side of the flanges 10 and the bolt holes 11 penetrate through the other side of the flanges 10. The flanges 10 installed on both sides of the valve body 1 can be connected to the pipeline through the bolt holes 11.

[0027] Working principle: During operation, when installing the sealing ring 4, the mounting block 701 can be easily installed inside the sliding groove 5. At the same time, rotating the bolt 708 allows the surface of the bolt 708 to press against the second push block 706, causing the second push block 706 to move the sliding plate 705 and the first push block 704 into the placement groove 6, thereby fixing the sealing ring 4 and preventing it from falling off. When replacing the sealing ring 4, rotating the bolt 708 in the opposite direction allows the spring 707 to push the sliding plate 705 and the second push block 706 to move when the bolt 708 is removed. This allows the first push block 704 to move into the rectangular groove 702, facilitating the removal of the mounting block 701 and enabling the replacement of the sealing ring 4.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] 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 butterfly valve for preventing the displacement of the sealing ring, comprising a valve body (1), characterized in that: The valve body (1) is provided with a valve plate (2) inside. The surface of the valve plate (2) is provided with an installation groove (3). The installation groove (3) is provided with a sealing ring (4) inside. The side of the valve plate (2) is provided with a sliding groove (5) and the sliding groove (5) penetrates the surface of the sealing ring (4). The inner wall of the sliding groove (5) is provided with a placement groove (6). The sliding groove (5) is provided with an installation structure (7) inside. The mounting structure (7) includes a mounting block (701), a rectangular groove (702) is provided on the surface of the mounting block (701), a limiting groove (703) is provided inside the mounting block (701), a first push block (704) is slidably connected inside the rectangular groove (702), a sliding plate (705) is provided on one side of the first push block (704) near the inside of the mounting block (701), a second push block (706) is provided on the other side of the sliding plate (705), a spring (707) is provided between the limiting groove (703) and the sliding plate (705), and a bolt (708) is threadedly connected inside the mounting block (701).

2. The butterfly valve for preventing sealing ring misalignment according to claim 1, characterized in that: The surface of the bolt (708) near the placement groove (6) is conical, and the top of the bolt (708) has an internal hexagonal groove.

3. The butterfly valve for preventing sealing ring misalignment according to claim 1, characterized in that: There are two mounting slots (3), both of which are opened on the surface of the valve plate (2) and are symmetrical to each other.

4. The butterfly valve for preventing sealing ring misalignment according to claim 1, characterized in that: The surface of the sealing ring (4) is arc-shaped, and the material of the sealing ring (4) is rubber.

5. The butterfly valve for preventing sealing ring misalignment according to claim 1, characterized in that: The valve body (1) has a valve seat (8) on its surface. An adjusting rod (9) is provided in a circular groove at the top of the valve seat (8), and the surface of the adjusting rod (9) is installed inside the valve plate (2).

6. The butterfly valve for preventing sealing ring misalignment according to claim 1, characterized in that: The valve body (1) is provided with flanges (10) on both sides. The flanges (10) have bolt holes (11) on their sides, and the bolt holes (11) penetrate the other side of the flanges (10).

7. The butterfly valve for preventing sealing ring misalignment according to claim 1, characterized in that: The surfaces of the first push block (704) and the second push block (706) are both arc-shaped, and the upper surface of the inner wall of the rectangular groove (702) is in the same plane as the upper surface of the inner wall of the placement groove (6).

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