Fault-free hard sealing butterfly valve with long-service-life structure

Abstract

The utility model relates to a fault-free hard sealing butterfly valve with a long-service-life structure, which belongs to the technical field of hard sealing butterfly valves and comprises a butterfly valve body, and a cleaning component is arranged on the butterfly valve body. A collecting assembly is arranged on the butterfly valve body; the cleaning assembly comprises a multi-section telescopic pipe detachably connected with the inner wall of the butterfly valve body. When the butterfly valve is not used, the sealing plate can seal the butterfly plate of the butterfly valve so as to avoid leakage, when the butterfly valve is used, the butterfly plate can extrude the sealing plate, at the moment, the sealing plate can contract under the action of the first spring and the multi-section telescopic pipe so as to avoid rotation of the butterfly plate, and after the butterfly valve is used at the using end, the sealing plate can be extruded by the sealing plate so as to prevent the butterfly plate from rotating. When the butterfly valve is used, a worker can rotate the butterfly plate of the butterfly valve to be in a vertical state, at the moment, the cleaning rod can clean impurities on the butterfly plate under the cooperation of the fixing sleeve, the telescopic sleeve, the second spring, the third spring and the sliding pipe, so that erosion damage to the butterfly plate is reduced, and the service life of the butterfly valve is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of hard-seal butterfly valve technology, and to a fault-free hard-seal butterfly valve with a long service life structure. Background Technology

[0002] In the field of industrial fluid control, butterfly valves are a key piece of equipment widely used in many industries such as petrochemicals, power, metallurgy, and water supply and drainage. With the continuous expansion of industrial production scale and the increasing complexity of production processes, more stringent requirements are placed on the performance of butterfly valves, leading to the development of trouble-free hard-seal butterfly valves with long service life structures.

[0003] According to the public announcement (CN211975912U), a hard-seal butterfly valve is disclosed. This technology discloses a technical solution that includes "a valve tube, a transmission mechanism fixedly connected to the top of the valve tube, a central shaft embedded inside the valve tube, a valve plate on one side of the central shaft, and the valve plate being connected to the central shaft via a sleeve. The valve tube has mounting grooves on both inner walls, and the two mounting grooves are symmetrically arranged about the vertical center of the valve tube. Rubber rings are provided on the inner sides of the two mounting grooves, and the rubber rings are fixedly connected to the valve tube via fixing rings. This solution has the technical effect that when the valve is closed by the transmission mechanism, the valve plate is rotated counterclockwise by the central shaft. When the valve plate rotates to the horizontal position, one edge of the valve plate contacts the rubber ring, and the other edge of the valve plate is symmetrically connected to the other rubber ring, thereby achieving a good seal on both sides of the valve plate and effectively reducing the possibility of water flowing out through the gap between the valve plate and the valve tube."

[0004] However, in the aforementioned comparative documents, although two rubber rings are used to seal the connection between the butterfly plate and the valve body, the fluid media in industrial pipelines are complex and often contain various impurities. After a period of operation, a large amount of impurities will adhere to the surface of the butterfly plate, which may contain corrosive substances. In humid or specific chemical environments, these impurities accelerate the corrosion process of the butterfly plate, weakening its structural strength. Traditional butterfly valves generally lack an effective impurity cleaning mechanism. As the butterfly plate corrosion intensifies, the sealing performance is damaged, the risk of leakage increases, and in severe cases, the butterfly valve may even fail to function properly, forcing a shutdown and replacement. This greatly affects the continuity and stability of industrial production, increasing enterprise maintenance costs and production downtime losses.

[0005] To address the aforementioned issues, this application proposes a fault-free hard-seal butterfly valve with a long-life structure. Utility Model Content

[0006] This utility model addresses the technical problems existing in the prior art by providing a fault-free hard-seal butterfly valve with a long service life structure.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a fault-free hard-seal butterfly valve with a long service life structure, including a butterfly valve body, a cleaning component provided on the butterfly valve body; a collection component provided on the butterfly valve body; the cleaning component includes a multi-section telescopic tube detachably connected to the inner wall of the butterfly valve body, a first spring provided inside the multi-section telescopic tube, a sealing plate fixedly connected to the telescopic end of the multi-section telescopic tube, a third spring fixedly connected to the sealing plate, a sliding tube fixedly connected to one end of the third spring, the sliding tube slidably connected to the sealing plate, a fixed sleeve fixedly connected to the sliding tube, a telescopic sleeve fixedly connected to the inner wall of the fixed sleeve, a second spring fixedly connected to the inner wall of the telescopic sleeve, one end of the second spring fixedly connected to the inner wall of the fixed sleeve, and a cleaning rod fixedly connected to the end of the telescopic sleeve located outside the fixed sleeve.

[0008] The collection component includes a through hole, and a fixed frame is fixedly connected to the bottom of the butterfly valve body through the through hole. A collection frame is movably connected to the inner wall of the fixed frame, and a handle is fixedly connected to one end of the collection frame located outside the fixed frame. By setting the collection component, impurities cleaned by the cleaning rod can be collected.

[0009] A magnetic plate is fixedly connected to the side of the sealing plate away from the fixed sleeve. One side of the magnetic plate is in contact with one side of the butterfly plate of the butterfly valve body. By setting the magnetic plate, the sealing plate and the butterfly plate of the butterfly valve body are tightly fitted together.

[0010] An inclined plate is fixedly connected to the inner wall of the fixed frame. The bottom of the inclined plate is attached to the top of the collection frame. By setting the inclined plate, impurities can be further collected.

[0011] A sealing block is fixedly connected to the outer wall of the fixed frame, and a sealing ring is fixedly connected to the side of the sealing block away from the fixed frame. By setting the sealing block and the sealing ring, the collection frame and the fixed frame are further sealed.

[0012] A limiting plate is slidably connected to the inner wall of the butterfly valve body. One side of the limiting plate is slidably connected to the outer wall of the fixed sleeve. By setting the limiting plate, the fixed sleeve is limited.

[0013] A baffle plate is fixedly connected to the butterfly plate of the butterfly valve body. By setting the baffle plate, the cleaning rod can be limited and retracted.

[0014] The beneficial effects of this utility model are:

[0015] When the butterfly valve is not in use, the sealing plate seals the butterfly plate to prevent leakage. When the butterfly valve is in use, the butterfly plate presses against the sealing plate, which then contracts under the action of the first spring and multiple telescopic tubes to prevent the butterfly plate from rotating. After the butterfly valve is in use, the operator can rotate the butterfly plate to a vertical position. At this time, the cleaning rod, with the cooperation of the fixed sleeve, telescopic sleeve, second spring, third spring, and sliding tube, cleans impurities on the butterfly plate, thereby reducing corrosion damage to the butterfly plate and extending the service life of the butterfly valve.

[0016] By setting up a collection component, impurities cleaned by the cleaning rod can be collected. After the butterfly valve has been used for a long time, some dust will accumulate inside the collection frame. At this time, the operator can pull out the collection frame by the handle to clean the inside of the collection frame, thereby avoiding excessive impurities inside the collection frame that could affect the use of the butterfly valve body. Attached Figure Description

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

[0018] Figure 2 This utility model is a schematic diagram illustrating the structure of a multi-section telescopic tube and its related parts;

[0019] Figure 3 This is a schematic diagram illustrating the structure of the sealing plate and its related parts in this utility model.

[0020] Figure 4 This utility model is a schematic diagram illustrating the structure of the cleaning rod and its related parts;

[0021] Figure 5 This utility model is a schematic diagram of the structure of the collection frame and its related parts.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Butterfly valve body;

[0024] 2. Cleaning components; 201. Multi-section telescopic tube; 202. First spring; 203. Sealing plate; 204. Fixing sleeve; 205. Telescopic sleeve; 206. Second spring; 207. Third spring; 208. Sliding tube; 209. Cleaning rod;

[0025] 3. Collection components; 301. Through hole; 302. Fixing frame; 303. Collection frame; 304. Handle;

[0026] 4. Magnetic plate; 5. Inclined plate; 6. Sealing block; 7. Sealing ring; 8. Limiting plate; 9. Blocking plate. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0030] Reference Figure 1-4 A fault-free hard-seal butterfly valve with a long service life structure includes a butterfly valve body 1, a cleaning component 2 on the butterfly valve body 1, and a collection component 3 on the butterfly valve body 1.

[0031] The cleaning component 2 includes a multi-section telescopic tube 201 detachably connected to the inner wall of the butterfly valve body 1. A first spring 202 is installed inside the multi-section telescopic tube 201. A sealing plate 203 is fixedly connected to the telescopic end of the multi-section telescopic tube 201. The cooperation between the multi-section telescopic tube 201 and the first spring 202 allows the sealing plate 203 to return to its original position after movement, thus enabling the reuse of the sealing plate 203. The sealing plate 203 is used to seal the butterfly plate of the butterfly valve body 1 and the internal contact area of ​​the butterfly valve body 1, thereby preventing leakage. A third spring 207 is fixedly connected to the sealing plate 203. One end of the third spring 207 is fixedly connected to a sliding tube 208. The sliding tube 208 and the sealing plate 203 are connected to the sliding tube 208. 03 Sliding connection: The sliding tube 208 is fixedly connected to the fixed sleeve 204. The cooperation of the third spring 207 and the sliding tube 208 enables the fixed sleeve 204 to slide. The inner wall of the fixed sleeve 204 is fixedly connected to the telescopic sleeve 205. The inner wall of the telescopic sleeve 205 is fixedly connected to the second spring 206. One end of the second spring 206 is fixedly connected to the inner wall of the fixed sleeve 204. The end of the telescopic sleeve 205 located outside the fixed sleeve 204 is fixedly connected to the cleaning rod 209. The cooperation of the fixed sleeve 204, the telescopic sleeve 205 and the second spring 206 enables the cleaning rod 209 to clean the butterfly plate of the butterfly valve body 1, thereby avoiding excessive impurities on the butterfly plate and causing corrosion.

[0032] Reference Figure 1 , Figure 2 and Figure 5 The collecting component 3 includes a through hole 301, which is used to allow impurities inside the butterfly valve body 1 to fall. The bottom of the butterfly valve body 1 is fixedly connected to a fixed frame 302 through the through hole 301. A collecting frame 303 is movably connected to the inner wall of the fixed frame 302. The fixed frame 302 is used to place and fix the collecting frame 303. The collecting frame 303 is used to collect the device. A handle 304 is fixedly connected to one end of the collecting frame 303 located outside the fixed frame 302. The handle 304 is used to facilitate the installation and removal of the collecting frame 303.

[0033] Reference Figure 1 and Figure 4 A magnetic plate 4 is fixedly connected to the side of the sealing plate 203 away from the fixed sleeve 204. One side of the magnetic plate 4 is in contact with one side of the butterfly plate of the butterfly valve body 1. The magnetic plate 4 is used to achieve a tight fit between the sealing plate 203 and the butterfly plate of the butterfly valve body 1. When the sealing plate 203 seals the butterfly plate of the butterfly valve body 1, the magnetic plate 4 can increase the fit between the butterfly valve body 1 and the sealing plate 203, thereby increasing the seal at the fit between the sealing plate 203 and the butterfly plate of the butterfly valve body 1.

[0034] Reference Figure 5An inclined plate 5 is fixedly connected to the inner wall of the fixed frame 302. The bottom of the inclined plate 5 is attached to the top of the collection frame 303. The inclined plate 5 is used to further collect impurities and prevent impurities from falling into the top wall of the collection frame 303, thereby avoiding affecting the collection efficiency of the collection frame 303 in collecting impurities.

[0035] Reference Figure 5 A sealing block 6 is fixedly connected to the outer wall of the fixed frame 302. A sealing ring 7 is fixedly connected to the side of the sealing block 6 away from the fixed frame 302. The cooperation of the sealing block 6 and the sealing ring 7 can further seal the collection frame 303 and the fixed frame 302, preventing water from flowing out through the joint between the fixed frame 302 and the collection frame 303.

[0036] Reference Figure 3 and Figure 4 The inner wall of the butterfly valve body 1 is slidably connected to a limiting plate 8. One side of the limiting plate 8 is slidably connected to the outer wall of the fixed sleeve 204. The limiting plate 8 is used to limit the fixed sleeve 204 and prevent the fixed sleeve 204 from shaking too violently when sliding, thereby avoiding affecting the use of the cleaning rod 209.

[0037] Reference Figure 3 and Figure 4 A baffle plate 9 is fixedly connected to the butterfly plate of the butterfly valve body 1. The baffle plate 9 is used to limit and retract the cleaning rod 209. When the cleaning rod 209 is squeezed and reset, the baffle plate 9 can further squeeze the cleaning rod 209 to avoid the cleaning rod 209 from getting stuck when resetting.

[0038] Working principle:

[0039] This fault-free hard-seal butterfly valve features a long-life structure. When the valve is not in use, the sealing plate 203 seals the butterfly plate to prevent leakage. When the valve is in use, the butterfly plate compresses the sealing plate 203, which then retracts under the action of the first spring 202 and the multi-section telescopic tube 201 to prevent the butterfly plate from rotating. After a period of use, the operator can rotate the butterfly plate to a vertical position. At this time, the cleaning rod 209 is misaligned with the butterfly plate. The cleaning rod 209, in conjunction with the fixed sleeve 204, the telescopic sleeve 205, and the second spring 206, cleans impurities from the butterfly plate. Cleaning is performed to reduce corrosion damage to the butterfly plate, thereby extending the service life of the butterfly valve. After the cleaning rod 209 cleans the butterfly plate, the operator closes the butterfly plate. At this time, the cleaning rod 209 will return to its original position with the cooperation of the fixed sleeve 204, the telescopic sleeve 205, the second spring 206, the third spring 207 and the sliding tube 208, thus achieving reuse. After the butterfly valve has been used for a long time, some dust will be collected inside the collection frame 303. At this time, the operator can pull out the collection frame 303 through the handle 304 to clean the inside of the collection frame 303, thereby avoiding excessive impurities inside the collection frame 303, which would affect the use of the butterfly valve body 1.

[0040] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A trouble-free hard-seal butterfly valve with a long-life structure, comprising a butterfly valve body (1), characterized in that, The butterfly valve body (1) is provided with a cleaning component (2); the butterfly valve body (1) is provided with a collection component (3); The cleaning assembly (2) includes a multi-section telescopic tube (201) detachably connected to the inner wall of the butterfly valve body (1). A first spring (202) is installed inside the multi-section telescopic tube (201). A sealing plate (203) is fixedly connected to the telescopic end of the multi-section telescopic tube (201). A third spring (207) is fixedly connected to the sealing plate (203). A sliding tube (208) is fixedly connected to one end of the third spring (207). The sliding tube (208) is connected to the sealing plate. The sealing plate (203) is slidably connected, the sliding tube (208) is fixedly connected to the fixing sleeve (204), the inner wall of the fixing sleeve (204) is fixedly connected to the telescopic sleeve (205), the inner wall of the telescopic sleeve (205) is fixedly connected to the second spring (206), one end of the second spring (206) is fixedly connected to the inner wall of the fixing sleeve (204), and the end of the telescopic sleeve (205) located outside the fixing sleeve (204) is fixedly connected to the cleaning rod (209).

2. The fault-free hard-seal butterfly valve with a long-life structure according to claim 1, characterized in that, The collecting component (3) includes a through hole (301). The bottom of the butterfly valve body (1) is fixedly connected to a fixed frame (302) through the through hole (301). The inner wall of the fixed frame (302) is movably connected to a collecting frame (303). One end of the collecting frame (303) located outside the fixed frame (302) is fixedly connected to a handle (304).

3. The fault-free hard-seal butterfly valve with a long-life structure according to claim 1, characterized in that, A magnetic plate (4) is fixedly connected to the side of the sealing plate (203) away from the fixing sleeve (204), and one side of the magnetic plate (4) is in contact with one side of the butterfly plate of the butterfly valve body (1).

4. The fault-free hard-seal butterfly valve with a long-life structure according to claim 2, characterized in that, An inclined plate (5) is fixedly connected to the inner wall of the fixed frame (302), and the bottom of the inclined plate (5) is attached to the top of the collection frame (303).

5. The fault-free hard-seal butterfly valve with a long-life structure according to claim 2, characterized in that, A sealing block (6) is fixedly connected to the outer wall of the fixed frame (302), and a sealing ring (7) is fixedly connected to the side of the sealing block (6) away from the fixed frame (302).

6. The fault-free hard-seal butterfly valve with a long-life structure according to claim 1, characterized in that, The inner wall of the butterfly valve body (1) is slidably connected to a limiting plate (8), and one side of the limiting plate (8) is slidably connected to the outer wall of the fixing sleeve (204).

7. The fault-free hard-seal butterfly valve with a long-life structure according to claim 1, characterized in that, A baffle plate (9) is fixedly connected to the butterfly plate of the butterfly valve body (1).

Images