A butterfly valve that is easy to install and fix

Abstract

This utility model relates to the field of butterfly valve technology, and in particular to a butterfly valve that is easy to install and fix. It utilizes a threaded post on the mating surface of the valve body flange to engage with a mounting hole on the pipe flange. When the butterfly valve body is installed at the end of the connecting pipe, the threaded post is directly inserted into the corresponding mounting hole on the pipe flange, and then a hexagonal connecting nut is used to thread and fix it to the threaded post. This process serves two purposes: firstly, the insertion of the threaded post into the mounting hole provides a calibration and positioning function for the mating of the valve body flange and the pipe flange, facilitating the installation and fixing of the butterfly valve body and offering excellent operational convenience; secondly, an alignment auxiliary cone is provided at the end of the threaded post to facilitate insertion into the mounting hole; and thirdly, the auxiliary accessories and connecting components work together to improve the installation stability of the butterfly valve body.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and in particular to a butterfly valve that is easy to install and fix. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve used for on / off control of low-pressure pipeline media. A butterfly valve is characterized by its closing element (valve disc or butterfly plate) being a circular disc that rotates around a valve shaft to open and close. Valves can control the flow of various types of fluids, including air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media. In pipelines, they primarily function as shut-off and throttling devices. The butterfly valve's opening and closing element is a disc-shaped butterfly plate that rotates around its own axis within the valve body to achieve opening, closing, or regulation.

[0003] The butterfly valve is connected to the flanges of the pipeline at both ends via flanges, and then fixed with bolts. During installation, the flange at the end of the butterfly valve must first be aligned with the flange at the end of the pipeline, and the mounting holes on both flanges must also be aligned before bolts are used for fixing. This process requires controlling the alignment of the mounting holes on both flanges while simultaneously connecting with bolts, which makes the operation difficult for the installation personnel. Furthermore, when fixing with bolts, the thread strength of the nuts and threaded posts also needs to be further improved.

[0004] Therefore, this utility model proposes a butterfly valve that is easy to install and fix to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a butterfly valve that is easy to install and fix, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a butterfly valve that is easy to install and fix, comprising a butterfly valve body and a butterfly plate disposed in the butterfly valve body, and valve body flanges are symmetrically disposed at both ends of the butterfly valve body;

[0007] The valve body flange and the pipe body flange are fixedly connected by a connecting assembly. The pipe body flange is fixedly installed at the end of the pipe connecting the pipe body, and mounting holes are provided at equal intervals on the pipe body flange.

[0008] Preferably, the connecting assembly includes a mating threaded post, an alignment auxiliary cone, a hexagonal connecting nut, an auxiliary ring, and auxiliary accessories; the mating threaded posts are equidistantly fixed on the valve body flange, and an alignment auxiliary cone is fixedly provided at the end of the mating threaded post.

[0009] Preferably, the threaded post and the mounting hole on the pipe flange are positioned in a corresponding manner and have the same number of sets.

[0010] Preferably, the threaded post is threaded to fit a hexagonal connecting nut, and an auxiliary ring is fixedly provided at one end of the hexagonal connecting nut.

[0011] Preferably, the auxiliary accessories include a stabilizing slot, an annular groove, a connecting stabilizing strip, a connecting clip, a sleeve groove, a rubber sleeve, a positioning plate, and an arc-shaped auxiliary surface; the stabilizing slots are equidistantly arranged on the annular sidewall of the valve body flange, and the annular groove is arranged on the outer sidewall of the auxiliary ring.

[0012] Preferably, a connecting clip is fixedly provided at one end of the connecting stabilizing strip, and a positioning clip is fixedly provided at the other end of the connecting stabilizing strip. A sleeve groove is provided at the end of the connecting clip, and the rubber sleeve is sleeved on the sleeve groove.

[0013] Preferably, an arc-shaped auxiliary surface is provided on the end face of the positioning plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention relates to a butterfly valve device that utilizes a threaded post on the mating surface of the valve body flange to engage with a mounting hole on the pipe flange. When the butterfly valve body is installed at the end of the connecting pipe, the threaded post is directly inserted into the corresponding mounting hole on the pipe flange, and then a hexagonal connecting nut is used to secure it to the threaded post. This process serves two purposes: firstly, the insertion of the threaded post into the mounting hole provides a calibration and positioning function for the valve body flange and pipe flange, facilitating the installation and fixing of the butterfly valve body and offering excellent operational convenience; secondly, an alignment auxiliary cone is provided at the end of the threaded post to facilitate insertion into the mounting hole; and thirdly, the auxiliary accessories and connecting components work together to improve the installation stability of the butterfly valve body. Attached Figure Description

[0016] Figure 1 This is an exploded view of the connection between the butterfly valve and the connecting pipe body structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged schematic diagram of the structural connection at point A in the middle;

[0018] Figure 3 for Figure 1 Enlarged schematic diagram of the structural connection at point B;

[0019] Figure 4 This is a schematic diagram of the front side of the auxiliary accessory structure of this utility model;

[0020] Figure 5This is a schematic diagram of the rear side of the auxiliary accessory structure of this utility model.

[0021] In the diagram: 1. Butterfly valve body; 2. Valve body flange; 3. Butterfly plate; 4. Connecting pipe body; 5. Pipe body flange; 6. Mounting hole body; 701. Butt threaded post; 702. Alignment auxiliary cone; 703. Hexagonal connecting nut; 704. Auxiliary ring body; 801. Stabilizing slot; 802. Annular groove; 803. Connecting stabilizing strip; 804. Connecting clip; 805. Sleeve groove; 806. Rubber sleeve; 807. Positioning plate; 808. Arc-shaped auxiliary surface. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figures 1 to 5 This utility model provides a technical solution: a butterfly valve that is easy to install and fix, including a butterfly valve body 1 and a butterfly plate 3 disposed in the butterfly valve body 1, and valve body flanges 2 are symmetrically disposed at both ends of the butterfly valve body 1; wherein the valve body flanges 2 and the pipe flanges 5 are fixedly connected by a set connecting component, the pipe flanges 5 are fixedly disposed at the pipe end of the connecting pipe 4, and mounting holes 6 are equidistantly disposed on the pipe flanges 5.

[0024] This solution utilizes a threaded post 701 on the mating surface of the valve body flange 2 to engage with a mounting hole 6 on the pipe body flange 5. When the butterfly valve body 1 is installed at the end of the connecting pipe body 4, the threaded post 701 is directly inserted into the corresponding mounting hole 6 on the pipe body flange 5. Then, a hexagonal connecting nut 703 is used to thread and secure the threaded post 701. This process serves two purposes: firstly, the insertion of the threaded post 701 into the mounting hole 6 provides a calibration and positioning function for the mating of the valve body flange 2 and the pipe flange 5, facilitating the installation and fixing of the butterfly valve body 1; secondly, a threaded post 701 is also provided at the end of the threaded post 701. An alignment auxiliary cone 702 is provided to facilitate the insertion of the mating threaded post 701 into the mounting hole 6. On the other hand, the auxiliary accessories are used in conjunction with the connecting components to improve the installation stability of the butterfly valve body 1. The mating threaded posts 701 in the connecting components are equidistantly fixed on the valve body flange 2, and the alignment auxiliary cone 702 is fixedly provided at the end of the mating threaded post 701. The mating threaded posts 701 and the mounting holes 6 on the pipe flange 5 are positioned correspondingly and have the same number of sets. The mating threaded posts 701 are threadedly connected to the hexagonal connecting nut 703, and an auxiliary ring 704 is fixedly provided at one end of the hexagonal connecting nut 703.

[0025] To further improve installation stability while ensuring ease of installation, this solution utilizes auxiliary accessories. Specifically, stabilizing slots 801 are equidistantly positioned on the annular sidewall of the valve body flange 2, and annular grooves 802 are positioned on the outer sidewall of the auxiliary ring 704. A connecting clamp 804 is fixedly mounted at one end of the connecting stabilizing strip 803, and a positioning plate 807 is fixedly mounted at the other end. A sleeve groove 805 is located at the end of the connecting clamp 804, and a rubber sleeve 806 is fitted onto the sleeve groove 805. The positioning plate 807... The end face of 7 is provided with an arc-shaped auxiliary surface 808; after the hexagonal connecting nut 703 is tightened into the threaded connection of the mating threaded post 701, the connecting clip 804 at one end of the connecting stabilizing strip 803 is inserted into the stabilizing slot 801 on the annular surface of the valve body flange 2. At the same time, the positioning clip 807 at the other end of the connecting stabilizing strip 803 is inserted into the annular groove 802 on the outer wall of the auxiliary ring 704, so that the hexagonal connecting nut 703 will not move circumferentially, that is, it is not easy to loosen, thereby improving the stability of the threaded connection between the hexagonal connecting nut 703 and the mating threaded post 701.

[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 butterfly valve that is easy to install and fix, comprising a butterfly valve body (1) and a butterfly plate (3) disposed in the butterfly valve body (1), and valve body flanges (2) are symmetrically disposed at both ends of the butterfly valve body (1); characterized in that The valve body flange (2) and the pipe body flange (5) are fixedly connected by a connecting assembly. The pipe body flange (5) is fixedly installed at the end of the pipe opening of the connecting pipe (4). Mounting holes (6) are provided at equal intervals on the pipe body flange (5). The connecting assembly includes a threaded post (701), an alignment auxiliary cone (702), a hexagonal connecting nut (703), an auxiliary ring (704), and auxiliary accessories; the threaded post (701) is fixedly arranged at equal intervals on the valve body flange (2), and an alignment auxiliary cone (702) is fixedly arranged at the end of the threaded post (701).

2. The butterfly valve of claim 1, wherein: The threaded post (701) and the mounting hole (6) on the pipe flange (5) are positioned in the same way and have the same number of sets.

3. The wafer valve of claim 1, wherein: The threaded post (701) is threadedly connected to the hexagonal connecting nut (703), and an auxiliary ring (704) is fixedly provided at one end of the hexagonal connecting nut (703).

4. The wafer valve of claim 3, wherein: The auxiliary accessories include a stabilizing slot (801), an annular groove (802), a connecting stabilizing strip (803), a connecting clip (804), a sleeve groove (805), a rubber sleeve (806), a positioning plate (807), and an arc-shaped auxiliary surface (808); the stabilizing slot (801) is equidistantly arranged on the annular side wall of the valve body flange (2), and the annular groove (802) is arranged on the outer side wall of the auxiliary ring (704).

5. The wafer valve of claim 4, wherein: One end of the connecting stabilizing strip (803) is fixedly provided with a connecting clip (804), and the other end of the connecting stabilizing strip (803) is fixedly provided with a positioning clip (807). The end of the connecting clip (804) is provided with a sleeve groove (805), and the rubber sleeve (806) is sleeved on the sleeve groove (805).

6. The wafer according to claim 4, wherein: An arc-shaped auxiliary surface (808) is provided on the end face of the positioning plate (807).

Images