Headless double disc butterfly valve

Abstract

The utility model discloses a kind of endless pair of clamping butterfly valves, involve butterfly valve technical field, including butterfly valve mechanism, installation mechanism is installed in butterfly valve mechanism upper portion, butterfly valve mechanism includes valve body assembly and valve core subassembly, valve core subassembly is rotatably connected with valve body assembly inside.The utility model, by the arc design of support plate can be with the upper portion of pipeline outer wall, stable support valve body assembly between two pipes, provide basic positioning for installation, rotating adjusting screw can adjust fixed plate height, realize the accurate adjustment of valve body assembly height between pipeline, rotating lead screw drives slider along slide rail sliding, can accurately adjust the horizontal position of valve body assembly, so that operator need not repeatedly manual alignment, greatly shorten installation time, improve construction efficiency, reduce labor cost, reduce installation deviation risk simultaneously, guarantee the coaxiality of valve body inner wall and pipeline inner wall, it is favorable to improve valve sealing performance and service life, ensure that pipeline system stable operation.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and in particular to a headless clamp butterfly valve. Background Technology

[0002] In various pipeline systems, appropriate valve equipment is required to achieve on / off control and flow regulation of the medium. Among them, the headless wafer butterfly valve, due to its special structure of having no independent valve body and being able to be directly clamped between the pipeline flanges, has the advantages of small size, light weight, convenient installation and low cost. It can be adapted to a variety of media such as water, air and weakly corrosive liquids, and is widely used in municipal, chemical and power industries, becoming an ideal choice for balancing control function and economy.

[0003] However, in the existing technology, during the installation of headless wafer butterfly valves, due to the overly flat design of their front and rear outer walls and the lack of positioning and guiding structures, it is difficult for operators to quickly and accurately align the valve body with the inner walls of the two pipes when placing it on the flange between two pipes. During installation, the valve position often needs to be repeatedly adjusted, and multiple attempts are required to align the valve bolt holes with the pipe flange bolt holes. During this process, the coaxiality of the valve body and the pipe inner walls must be constantly checked to avoid obstruction of medium flow or damage to the sealing surface due to misalignment. This repeated alignment operation not only prolongs the installation time of a single valve and reduces the overall construction progress, but also significantly increases the cumulative time for installing multiple valves, especially in large pipeline projects, directly increasing labor costs. At the same time, the frequent adjustment process may lead to operator fatigue, increasing the risk of installation deviations due to negligence, which in turn affects the subsequent sealing performance and service life of the valve, creating hidden dangers for the stable operation of the pipeline system. Utility Model Content

[0004] The purpose of this utility model is to solve the problem in the existing technology of headless wafer butterfly valves, where the front and rear outer walls are too flat and lack a positioning and guiding structure, making it difficult for operators to quickly and accurately align the inner wall of the valve body with the inner walls of the two pipes when it needs to be placed on the flange between two pipes. Therefore, a headless wafer butterfly valve is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a headless clamp butterfly valve, including a butterfly valve mechanism, an installation mechanism mounted on the upper part of the butterfly valve mechanism, the butterfly valve mechanism including a valve body assembly, a valve core assembly and an opening and closing assembly, the valve core assembly being rotatably connected to the valve body assembly, and the top of the valve core assembly being fixedly connected to the opening and closing assembly, the opening and closing assembly being rotatably connected to the top of the valve body assembly, an adjustment assembly being fixedly connected to the side of the installation mechanism, the bottom of the adjustment assembly being in contact with the outer wall of the pipe, the installation mechanism including an installation plate and an installation block, the installation plate being fixedly connected to the side of the valve body assembly, and the installation block being inserted into the installation plate;

[0006] The adjustment assembly includes a slide rail and a lead screw. The slide rail is fixedly connected to the side of the mounting block, and a slider is slidably connected inside the slide rail. The lead screw is rotatably connected to the slide rail, and the lead screw is threadedly connected to the slider. A fixing plate is fixedly connected to the side of the slider. An adjusting screw is threadedly connected to the surface of the fixing plate. A support plate is rotatably connected to the bottom of the adjusting screw. The support plate is arc-shaped.

[0007] Preferably, two mounting mechanisms are fixedly connected to the surface of the valve body assembly, and the two mounting mechanisms are symmetrically distributed on both sides of the valve body assembly.

[0008] Preferably, a fixing pin is inserted into the upper part of the mounting plate, and the end of the fixing pin passes through the mounting plate and is inserted into the mounting block.

[0009] Preferably, a limiting rod is fixedly connected to the upper part of the support plate, and the limiting rod is inserted into the fixed plate.

[0010] Preferably, two limiting rods are fixedly connected to the upper part of the support plate, and the two limiting rods are symmetrically distributed on both sides of the adjusting screw.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the arc-shaped design of the support plate allows it to fit snugly against the upper part of the outer wall of the pipe, stably supporting the valve body assembly between two pipes and providing a basic positioning for installation. Rotating the adjusting screw can adjust the height of the fixing plate, achieving precise adjustment of the height of the valve body assembly between the pipes. Rotating the lead screw drives the slider to slide along the slide rail, which can precisely adjust the horizontal position of the valve body assembly. This eliminates the need for operators to manually align repeatedly, significantly shortening installation time, improving construction efficiency, reducing labor costs, and reducing the risk of installation deviation. It also ensures the coaxiality of the inner wall of the valve body and the inner wall of the pipe, which is beneficial to improving the valve's sealing performance and service life, and ensuring the stable operation of the pipeline system.

[0013] 2. In this utility model, by inserting the mounting block into the mounting plate and using the insertion and removal of the fixing pin, the adjustment component can be quickly disassembled after the valve body assembly is installed and fixed, allowing for reuse and reducing costs. Two mounting mechanisms symmetrically distributed on both sides of the valve body assembly enhance the overall balance of installation and adjustment. Two limit rods on the upper part of the support plate are symmetrically distributed on both sides of the adjusting screw. When the adjusting screw drives the fixed plate to adjust its height, the fixed plate slides along the limit rods, effectively limiting the movement and improving the stability of the valve body assembly height adjustment. The slide rail limits the movement of the slider, ensuring the stability of the horizontal movement of the valve body assembly, further improving installation accuracy, reducing deviations, and ensuring sealing performance and service life during subsequent use. Attached Figure Description

[0014] Figure 1 This utility model provides a first three-dimensional structural schematic diagram of a headless clamp butterfly valve;

[0015] Figure 2 This utility model provides a second three-dimensional structural schematic diagram of a headless clamp butterfly valve;

[0016] Figure 3 A side view of the structure of a headless clamp butterfly valve is provided for this utility model;

[0017] Figure 4 This utility model presents a cross-sectional three-dimensional structural diagram of the mounting mechanism and adjusting components in a headless clamp butterfly valve.

[0018] Legend: 1. Butterfly valve mechanism; 11. Valve body assembly; 12. Valve core assembly; 13. Opening and closing assembly; 2. Mounting mechanism; 21. Mounting plate; 22. Mounting block; 23. Fixing pin; 3. Adjusting assembly; 31. Slide rail; 32. Slider; 33. Lead screw; 34. Fixing plate; 35. Adjusting screw; 36. Support plate; 37. Limit rod. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figures 1-4 As shown, this utility model provides a headless clamp butterfly valve, including a butterfly valve mechanism 1, an installation mechanism 2 installed on the upper part of the butterfly valve mechanism 1, the butterfly valve mechanism 1 including a valve body assembly 11, a valve core assembly 12 and an opening and closing assembly 13, the valve core assembly 12 is rotatably connected to the valve body assembly 11, and the top of the valve core assembly 12 is fixedly connected to the opening and closing assembly 13, and the opening and closing assembly 13 is rotatably connected to the top of the valve body assembly 11;

[0022] The adjusting assembly 3 includes a slide rail 31 and a lead screw 33. The slide rail 31 is fixedly connected to the side of the mounting block 22, and a slider 32 is slidably connected inside the slide rail 31. The lead screw 33 is rotatably connected to the slide rail 31, and the lead screw 33 is threadedly connected to the slider 32. A fixing plate 34 is fixedly connected to the side of the slider 32. An adjusting screw 35 is threadedly connected to the surface of the fixing plate 34. A support plate 36 is rotatably connected to the bottom of the adjusting screw 35. The support plate 36 is arc-shaped.

[0023] The specific settings and functions of this embodiment are described in detail below. When installing the butterfly valve mechanism 1 with the pipeline, the support plate 36 is placed on the upper part of the pipeline. The arc design of the support plate 36 makes the support plate 36 fit against the upper part of the outer wall of the pipeline, so that the whole is stably installed on the upper part of the pipeline. The valve body assembly 11 is installed between the two pipelines by the two support plates 36. The height of the fixing plate 34 is adjusted by rotating the adjusting screw 35, thereby precisely adjusting the height of the valve body assembly 11 between the pipelines. Then, the slider 32 is driven to slide inside the slide rail 31 by rotating the lead screw 33, thereby precisely adjusting the horizontal position of the valve body assembly 11 between the pipelines.

[0024] The arc-shaped design of the support plate 36 allows it to fit snugly against the upper part of the outer wall of the pipe, stably supporting the valve body assembly 11 between the two pipes and providing a basic positioning for installation. Rotating the adjusting screw 35 can adjust the height of the fixing plate 34, achieving precise adjustment of the height of the valve body assembly 11 between the pipes. Rotating the lead screw 33 drives the slider 32 to slide along the slide rail 31, which can precisely adjust the horizontal position of the valve body assembly 11, eliminating the need for repeated manual alignment by operators, significantly shortening installation time, improving construction efficiency, reducing labor costs, and reducing the risk of installation deviation. It also ensures the coaxiality of the inner wall of the valve body and the inner wall of the pipe, which is beneficial to improving the valve's sealing performance and service life, and ensuring the stable operation of the pipeline system.

[0025] Example 2: Figures 1-4 As shown, an adjustment component 3 is fixedly connected to the side of the installation mechanism 2. The bottom of the adjustment component 3 is in contact with the outer wall of the pipe. The installation mechanism 2 includes an installation plate 21 and an installation block 22. The installation plate 21 is fixedly connected to the side of the valve body assembly 11. The installation block 22 is inserted into the installation plate 21. Two installation mechanisms 2 are fixedly connected to the surface of the valve body assembly 11. The two installation mechanisms 2 are symmetrically distributed on both sides of the valve body assembly 11. A fixing pin 23 is inserted into the upper part of the installation plate 21. The end of the fixing pin 23 passes through the installation plate 21 and is inserted into the installation block 22. A limit rod 37 is fixedly connected to the upper part of the support plate 36. The limit rod 37 is inserted into the fixing plate 34. Two limit rods 37 are fixedly connected to the upper part of the support plate 36. The two limit rods 37 are symmetrically distributed on both sides of the adjustment screw 35.

[0026] The overall effect of this embodiment is that after the position of the valve body assembly 11 is adjusted, it is installed and fixed to the flange at the end of the pipe. After installation, the fixing pin 23 is pulled out from the mounting block 22 and the mounting plate 21, and then the mounting block 22 is pulled out from the inside of the mounting plate 21. The adjustment assembly 3 is disassembled and can be reinstalled and used. When the adjusting screw 35 drives the fixing plate 34 to adjust the height, the fixing plate 34 slides along the limiting rod 37 to limit the movement of the fixing plate 34 and improve the stability of the valve body assembly 11 when adjusting the height. The sliding rail 31 limits the movement of the slider 32 and improves the stability of the valve body assembly 11 when moving horizontally.

[0027] By inserting the mounting block 22 into the mounting plate 21 and engaging the fixing pin 23, the adjusting component 3 can be quickly disassembled after the valve body assembly 11 is installed and fixed, allowing for reuse and reducing costs. The two mounting mechanisms 2, symmetrically distributed on both sides of the valve body assembly 11, enhance the overall balance of the installation and adjustment. The two limiting rods 37 on the upper part of the support plate 36 are symmetrically distributed on both sides of the adjusting screw 35. When the adjusting screw 35 drives the fixing plate 34 to adjust its height, the fixing plate 34 slides along the limiting rods 37, effectively limiting the movement and improving the stability of the height adjustment of the valve body assembly 11. The slide rail 31 limits the movement of the slider 32, ensuring the stability of the horizontal movement of the valve body assembly 11, further improving installation accuracy, reducing deviation, and ensuring sealing performance and service life during subsequent use.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A headless wafer butterfly valve, comprising a butterfly valve mechanism (1), wherein an installation mechanism (2) is mounted on the upper part of the butterfly valve mechanism (1), the butterfly valve mechanism (1) comprising a valve body assembly (11), a valve core assembly (12), and an opening and closing assembly (13), wherein the valve core assembly (12) is rotatably connected to the valve body assembly (11), and the top of the valve core assembly (12) is fixedly connected to the opening and closing assembly (13), and the opening and closing assembly (13) is rotatably connected to the top of the valve body assembly (11), characterized in that: The installation mechanism (2) is fixedly connected to the side of the adjustment component (3), the bottom of the adjustment component (3) is in contact with the outer wall of the pipe, the installation mechanism (2) includes an installation plate (21) and an installation block (22), the installation plate (21) is fixedly connected to the side of the valve body assembly (11), and the installation block (22) is inserted into the installation plate (21); The adjustment component (3) includes a slide rail (31) and a lead screw (33). The slide rail (31) is fixedly connected to the side of the mounting block (22), and a slider (32) is slidably connected inside the slide rail (31). The lead screw (33) is rotatably connected to the slide rail (31), and the lead screw (33) is threadedly connected to the slider (32). A fixing plate (34) is fixedly connected to the side of the slider (32). An adjusting screw (35) is threadedly connected to the surface of the fixing plate (34). A support plate (36) is rotatably connected to the bottom of the adjusting screw (35). The support plate (36) is arc-shaped.

2. The headless wafer butterfly valve according to claim 1, characterized in that: Two mounting mechanisms (2) are fixedly connected to the surface of the valve body assembly (11), and the two mounting mechanisms (2) are symmetrically distributed on both sides of the valve body assembly (11).

3. A headless wafer butterfly valve according to claim 1, characterized in that: A fixing pin (23) is inserted into the upper part of the mounting plate (21), and the end of the fixing pin (23) passes through the mounting plate (21) and is inserted into the mounting block (22).

4. A headless wafer butterfly valve according to claim 1, characterized in that: A limiting rod (37) is fixedly connected to the upper part of the support plate (36), and the limiting rod (37) is inserted into the fixing plate (34).

5. A headless wafer butterfly valve according to claim 1, characterized in that: The upper part of the support plate (36) is fixedly connected to two limiting rods (37), which are symmetrically distributed on both sides of the adjusting screw (35).

Images