Quick-connection eccentric butterfly valve convenient to install

Abstract

The invention relates to the technical field of butterfly valves, in particular to a quick-connection eccentric butterfly valve convenient to install, which comprises a butterfly valve main body and a butterfly plate, the inner side of the butterfly valve main body is provided with a stabilizing assembly, the stabilizing assembly comprises a U-shaped plate fixed at the front end of the butterfly plate, the inner side of the U-shaped plate is rotatably connected with a pressing rod, one end of the pressing rod is provided with a first rotating groove, and the other end of the pressing rod is provided with a second rotating groove. A push rod is rotatably connected to the inner side of the first rotating groove, a sliding barrel is fixedly connected to the inner side of the butterfly valve body, and one end of the push rod is slidably connected to the inner side of the sliding barrel. The inner wall thickness can be judged according to the pressure of the pressure sensor, and the inner wall of the pipeline can be conveniently detected.

Description

Technical Field

[0001] The present invention relates to the technical field of butterfly valves, and particularly to a quick-connect eccentric butterfly valve that is convenient for installation. Background Art

[0002] A butterfly valve is a simple-structured regulating valve, also known as a flap valve. Its closing member is a disc-shaped butterfly plate, which rotates around the valve shaft to achieve opening and closing. The butterfly valve opens, closes, or adjusts the medium flow rate by rotating the butterfly plate about 90°. The working principle of the butterfly valve is that the valve stem drives the butterfly plate to rotate, and the butterfly plate rotates around the axis in the cylindrical channel of the valve body. When the butterfly plate rotates to 90°, the valve is in the fully open state, allowing the maximum flow rate to pass through; when the butterfly plate is perpendicular to the pipeline center line, the valve is in the closed state. The opening degree of the butterfly valve changes linearly with the flow rate, and the medium flow rate can be adjusted by changing the angle of the butterfly plate. When the gas impact inside the pipeline is too large, the high-pressure air will squeeze the butterfly plate when the butterfly valve is closed, affecting the service life of the butterfly plate. During the use of the pipeline, there will be friction with the inner wall of the pipeline, resulting in the thinning of the inner wall of the pipeline. The thinning of the pipeline wall will pose a risk of pipeline explosion. For this reason, we propose a quick-connect eccentric butterfly valve that is convenient for installation. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies in the background art and propose a quick-connect eccentric butterfly valve that is convenient for installation.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a quick-connect eccentric butterfly valve that is convenient for installation, wherein two groups of eccentric blocks are fixedly connected to the rear end of the butterfly plate, and the butterfly plate is rotationally connected to the butterfly valve body through the eccentric blocks. Quick-connect flanges are fixedly connected to both ends of the butterfly valve body, and an installation groove is provided inside the [flange]. A sealing ring is installed inside the installation groove. The butterfly valve includes a butterfly valve body and a butterfly plate. A stabilizing component is arranged inside the butterfly valve body. The stabilizing component includes a U-shaped plate fixed to the front end of the butterfly plate. A pressure rod is rotationally connected inside the U-shaped plate. A first rotating groove is provided at one end of the pressure rod, and a push rod is rotationally connected inside the first rotating groove. A sliding cylinder is fixedly connected inside the butterfly valve body, and one end of the push rod is slidably connected inside the sliding cylinder.

[0005] Preferably, a slider is fixedly connected to the rear end of the push rod, a sliding rod is fixedly connected to the rear end of the slider, a connecting block is fixedly connected to the rear end of the sliding rod, a rotating shell is fixedly connected to one end of the connecting block, a rotating ring is rotationally connected inside the rotating shell, blades are arranged inside the rotating ring, and a first spring is arranged outside the sliding rod. The first spring is located inside the sliding cylinder.

[0006] Preferably, a connecting ring is fixedly connected to the front end of the swivel ring, four sliding shells are fixedly connected to the front end of the connecting ring, a plug rod is slidably connected to the inner side of the sliding shell, a first stop piece is fixedly connected to the front end of the plug rod, a pressure sensor is slidably connected to the upper end of the first stop piece, and a first rolling ball is rotatably connected to the upper end of the pressure sensor.

[0007] Preferably, a fixing ring is fixedly connected to the inner side of the rotating shell, a second rotating groove is formed in the outer side of the swivel ring, the fixing ring is arranged inside the second rotating groove, and the swivel ring is rotatably connected to the rotating shell through the fixing ring.

[0008] Preferably, a sliding groove is formed in the outer side of the plug rod, a first inserting block is fixedly connected to the inner side of the connecting ring, the first inserting block is slidably connected inside the second rotating groove, a second spring is fixedly connected to the rear end of the plug rod, and the rear end of the second spring is fixedly connected to the inner wall of the sliding shell.

[0009] Preferably, four second stop pieces are fixedly connected to the upper end of the first stop piece, the pressure sensor is located between the four second stop pieces, a slotted groove is formed in the outer side of the pressure sensor, a second inserting block is fixedly connected to the inner side of the second stop piece, the second inserting block is slidably connected inside the slotted groove, and a fourth spring is fixedly connected to the lower end of the pressure sensor.

[0010] Preferably, a fourth spring is fixedly connected to the rear end of the rotating shell, a plug shaft is slidably connected to the outer side of the fourth spring, a second rolling ball is rotatably connected to the upper end of the plug shaft, and a pressing ball is fixedly connected to the lower end of the second rolling ball.

[0011] Preferably, a pushing block is fixedly connected to the outer side of the swivel ring, the upper end of the pushing block is arc-shaped, a third spring is arranged on the outer side of the plug shaft, the upper end of the third spring is fixedly connected to the second rolling ball, and the lower end of the third spring is fixedly connected to the fourth spring.

[0012] Compared with the prior art, the present invention provides a quick-connect eccentric butterfly valve that is convenient for installation, and has the following beneficial effects:

[0013] 1. For this quick-connect eccentric butterfly valve that is convenient for installation, when the butterfly plate seals the butterfly valve body, the pressure rod will rotate along with the U-shaped plate. At this time, the first spring will push the slider so that the push rod pushes the other end of the pressure rod to be in close contact with the butterfly plate, thereby ensuring the stability of the butterfly plate, reducing the pressure of high-pressure air on the butterfly plate, increasing the service life of the butterfly plate, and enabling the sealing ring to be replaced by using the installation groove, increasing the service life of the butterfly valve body. Using the eccentric block can reduce the torque of the butterfly valve, and using the quick-connect flange can make the installation of the butterfly valve body simple and fast.

[0014] 2. For the quick-connect eccentric butterfly valve that is convenient for installation, the gas will impact the blade to drive the rotating ring to rotate inside the rotating shell. At this time, the connecting ring will follow the rotating ring to rotate, drive the sliding shell to rotate, and further drive the insertion rod to drive the pressure sensor to rotate through the first stop piece. As the pipeline becomes thinner, the pressure of the pipeline on the pressure sensor will gradually decrease. At this time, the pressure sensor will slide between the four groups of second stop pieces, and the inner wall thickness can be judged according to the pressure of the pressure sensor, which is convenient for detecting the inner wall thickness of the pipeline.

[0015] 3. For the quick-connect eccentric butterfly valve that is convenient for installation, when the gas decreases, the second spring will contract, driving the pressure sensor to slide back and forth to further ensure the measurement accuracy of the pressure sensor. While the rotating ring rotates, it will drive the push block to squeeze the pressure ball to drive the insertion shaft to slide on the fourth spring, and the third spring can be used to drive it to move downward, and then the inner wall of the butterfly valve body is struck by the second rolling ball to reduce dust accumulation. During the rotation of the butterfly plate, the pressure rod will be used to drive the push rod to pull the sliding rod, and then the rotating shell will be driven to move forward by the connecting block, further driving the pressure sensor to move, ensuring the moving distance of the pressure sensor to guarantee the measurement accuracy of the pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a cross-section of the present invention Figure 1 ;

[0018] Figure 3 It is a schematic diagram of the structure of the stable component of the present invention;

[0019] Figure 4 It is of the present invention Figure 3 Schematic diagram of the enlarged structure of part A in the present invention;

[0020] Figure 5 It is a schematic diagram of part of the structure of the stable component of the present invention Figure 1 ;

[0021] Figure 6 It is a schematic diagram of part of the structure of the stable component of the present invention Figure 2 ;

[0022] Figure 7 It is a cross-section of the stable component of the present invention Figure 1 ;

[0023] Figure 8 It is of the present invention Figure 7 Schematic diagram of the enlarged structure of part B in the present invention;

[0024] Figure 9 It is a cross-section of the stable component of the present invention Figure 2 ;

[0025] Figure 10 Schematic diagram of the partial structure of the stability component of the present invention Figure 3 ;

[0026] Figure 11 Schematic diagram of the partial structure of the limit stability component of the present invention Figure 4 ;

[0027] Figure 12 Cross-section of the present invention Figure 2 。

[0028] In the figure: 1, butterfly valve body; 2, butterfly plate; 3, stability component; 31, U-shaped plate; 32, pressure rod; 33, first rotating groove; 34, push rod; 35, sliding cylinder; 36, slider; 37, sliding rod; 38, first spring; 39, connecting block; 310, rotating shell; 311, rotating ring; 312, blade; 313, connecting ring; 314, sliding shell; 315, inserting rod; 316, first retaining piece; 317, pressure sensor; 318, fixing ring; 319, second rotating groove; 3191, chute; 320, first inserting block; 321, second spring; 322, second retaining piece; 323, slotted opening; 324, second inserting block; 325, first rolling ball; 326, fourth spring; 327, inserting shaft; 328, second rolling ball; 329, pressing ball; 330, pushing block; 331, third spring; 4, sealing ring; 5, eccentric block; 6, quick-connect flange. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] Please refer to Figure 1 - Figure 12 , a quick-connect eccentric butterfly valve that is convenient for installation. Two groups of eccentric blocks 5 are fixedly connected to the rear end of the butterfly plate 2. The butterfly plate 2 is rotatably connected to the butterfly valve body 1 through the eccentric blocks 5. Quick-connect flanges 6 are fixedly connected to both ends of the butterfly valve body 1. An installation groove is opened inside 1, and a sealing ring 4 is installed inside the installation groove. It includes a butterfly valve body 1 and a butterfly plate 2. A stability component 3 is arranged inside the butterfly valve body 1. The stability component 3 includes a U-shaped plate 31 fixed to the front end of the butterfly plate 2. A pressure rod 32 is rotatably connected inside the U-shaped plate 31. A first rotating groove 33 is opened at one end of the pressure rod 32, and a push rod 34 is rotatably connected inside the first rotating groove 33. A sliding cylinder 35 is fixedly connected inside the butterfly valve body 1, and one end of the push rod 34 is slidably connected inside the sliding cylinder 35.

[0031] In this embodiment, a slider 36 is fixedly connected to the rear end of the push rod 34, a sliding rod 37 is fixedly connected to the rear end of the slider 36, a connecting block 39 is fixedly connected to the rear end of the sliding rod 37, a rotating shell 310 is fixedly connected to one end of the connecting block 39, a rotating ring 311 is rotatably connected to the inner side of the rotating shell 310, a blade 312 is arranged on the inner side of the rotating ring 311, a first spring 38 is arranged on the outer side of the sliding rod 37, and the first spring 38 is located inside the sliding cylinder 35.

[0032] Specifically, the first spring 38 can be used to push the slider 36 so that the push rod 34 drives one end of the pressure rod 32 to press tightly on the butterfly valve plate 2, reducing the impact of gas on the butterfly valve plate 2 and ensuring the service life of the butterfly valve plate 2.

[0033] In this embodiment, a connecting ring 313 is fixedly connected to the front end of the rotating ring 311, four sliding shells 314 are fixedly connected to the front end of the connecting ring 313, a plug rod 315 is slidably connected to the inner side of the sliding shell 314, a first retaining piece 316 is fixedly connected to the front end of the plug rod 315, a pressure sensor 317 is slidably connected to the upper end of the first retaining piece 316, and a first rolling ball 325 is rotatably connected to the upper end of the pressure sensor 317.

[0034] Specifically, the first rolling ball 325 can be used to facilitate the rotation of the pressure sensor 317. The rotating ring 311 can drive the connecting ring 313 to rotate, thereby driving the sliding shell 314 to rotate, and further driving the pressure sensor 317 to detect the inner wall thickness of the pipeline.

[0035] In this embodiment, a fixed ring 318 is fixedly connected to the inner side of the rotating shell 310. A second rotating groove 319 is formed on the outer side of the rotating ring 311. The fixed ring 318 is arranged inside the second rotating groove 319. The rotating ring 311 is rotatably connected to the rotating shell 310 through the fixed ring 318.

[0036] Specifically, the second rotating groove 319 can facilitate the rotation of the rotating ring 311 on the fixed ring 318 and facilitate the blade 312 to drive the rotating ring 311 to rotate.

[0037] In this embodiment, a sliding groove 3191 is formed on the outer side of the plug rod 315. A first insertion block 320 is fixedly connected to the inner side of the connecting ring 313. The first insertion block 320 is slidably connected inside the second rotating groove 319. A second spring 321 is fixedly connected to the rear end of the plug rod 315, and the rear end of the second spring 321 is fixedly connected to the inner wall of the sliding shell 314.

[0038] Specifically, the sliding groove 3191 can be used to clamp the first insertion block 320, facilitating the sliding of the plug rod 315 inside the sliding shell 314. The second spring 321 can be used to facilitate the pulling of the plug rod 315 to move.

[0039] In this embodiment, four groups of second baffles 322 are fixedly connected to the upper end of the first baffle 316. The pressure sensor 317 is located between the four groups of second baffles 322. A slot 323 is formed on the outer side of the pressure sensor 317. A second insert block 324 is fixedly connected to the inner side of the second baffle 322. The second insert block 324 is slidably connected to the inner side of the slot 323. A fourth spring 326 is fixedly connected to the lower end of the pressure sensor 317.

[0040] Specifically, the fourth spring 326 can be used to push the pressure sensor 317 to move. The slot 323 can facilitate the sliding of the second insert block 324 and facilitate the sliding of the insertion shaft 327 between the four groups of second baffles 322.

[0041] In this embodiment, a fourth spring 326 is fixedly connected to the rear end of the rotating shell 310. An insertion shaft 327 is slidably connected to the outer side of the fourth spring 326. The upper end of the insertion shaft 327 is rotatably connected to a second rolling ball 328. A pressing ball 329 is fixedly connected to the lower end of the second rolling ball 328.

[0042] A pushing block 330 is fixedly connected to the outer side of the rotating ring 311. The upper end of the pushing block 330 is arc-shaped. A third spring 331 is arranged on the outer side of the insertion shaft 327. The upper end of the third spring 331 is fixedly connected to the second rolling ball 328. The lower end of the third spring 331 is fixedly connected to the fourth spring 326.

[0043] Specifically, when the rotating ring 311 rotates, it will drive the pushing block 330 to squeeze the pressing ball 329 to drive the insertion shaft 327 to slide on the fourth spring 326. The third spring 331 can be used to drive the downward movement, and then the inner wall of the butterfly valve body 1 can be struck by the second rolling ball 328 to reduce the accumulation of dust.

[0044] It should be noted that when in use, when the butterfly plate 2 is rotated to seal the butterfly valve body 1, the pressure rod 32 will rotate following the U-shaped plate 31. At this time, the first spring 38 will push the slider 36 so that the push rod 34 will push the other end of the pressure rod 32 to be in close contact with the butterfly plate 2, thereby ensuring the stability of the butterfly plate 2. When the butterfly plate 2 is in the open state, the gas will impact the blade 312 to drive the rotating ring 311 to rotate inside the rotating shell 310. At this time, the connecting ring 313 will rotate following the rotating ring 311, driving the sliding shell 314 to rotate, and further driving the insertion rod 315 to drive the pressure sensor 317 to rotate by using the first baffle 316. As the inner wall of the butterfly valve body 1 becomes thinner, the pressure of the inner wall of the butterfly valve body 1 on the pressure sensor 317 will gradually decrease. At this time, the pressure sensor 317 will slide between the four groups of second baffles 322, and the fourth spring 326 will open. The inner wall thickness is judged according to the pressure of the pressure sensor 317. At the same time, the gas will impact the first baffle 316 to drive the insertion rod 315 to slide out from the inside of the sliding shell 314, driving the second spring 321 to open. When the butterfly plate 2 is rotated, the gas decreases, and the second spring 321 will contract, driving the pressure sensor 317 to slide back and forth to further ensure the measurement accuracy of the pressure sensor 317. When the rotating ring 311 rotates, it will drive the push block 330 to squeeze the pressure ball 329 to drive the insertion shaft 327 to slide on the fourth spring 326. The third spring 331 can be used to drive it to move downward, and then the inner wall of the butterfly valve body 1 is struck by the second ball 328 to reduce the accumulation of dust. During the rotation of the butterfly plate 2, the pressure rod 32 will drive the push rod 34 to pull the sliding rod 37, and then drive the rotating shell 310 to move forward by using the connecting block 39, further driving the pressure sensor 317 to move, ensuring that the moving distance of the pressure sensor 317 guarantees the measurement accuracy of the pressure sensor 317.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-connect eccentric butterfly valve that is easy to install, comprising a butterfly valve body (1) and a butterfly plate (2), characterized in that: The rear end of the butterfly plate (2) is fixedly connected with two groups of eccentric blocks (5), and the butterfly plate (2) is rotatably connected to the butterfly valve body (1) through the eccentric blocks (5). The two ends of the butterfly valve body (1) are fixedly connected with quick-connect flanges (6). The inner side of the (1) is provided with a mounting groove, and a sealing ring (4) is installed on the inner side of the mounting groove. A stabilizing component (3) is arranged on the inner side of the butterfly valve body (1). The stabilizing component (3) includes a U-shaped plate (31) fixed to the front end of the butterfly plate (2), and the inner side of the U-shaped plate (31) is rotatably connected with a pressure rod (32). One end of the pressure rod (32) is provided with a first rotating groove (33), and the inner side of the first rotating groove (33) is rotatably connected with a push rod (34). The inner side of the butterfly valve body (1) is fixedly connected with a slide cylinder (35), and one end of the push rod (34) is slidably connected to the inner side of the slide cylinder (35).

2. The quick-connect eccentric butterfly valve that is easy to install according to claim 1 is characterized in that: The rear end of the push rod (34) is fixedly connected to a slider (36), the rear end of the slider (36) is fixedly connected to a slide rod (37), the rear end of the slide rod (37) is fixedly connected to a connection block (39), one end of the connection block (39) is fixedly connected to a rotating shell (310), the inner side of the rotating shell (310) is rotatably connected to a rotating ring (311), the inner side of the rotating ring (311) is provided with a blade (312), and the outer side of the slide rod (37) is provided with a first spring (38), and the first spring (38) is located on the inner side of the slide cylinder (35).

3. The quick-connect eccentric butterfly valve that is easy to install according to claim 2 is characterized in that: The front end of the rotating ring (311) is fixedly connected to a connecting ring (313), the front end of the connecting ring (313) is fixedly connected to four sets of sliding shells (314), the inner side of the sliding shell (314) is slidably connected to an insert rod (315), the front end of the insert rod (315) is fixedly connected to a first baffle (316), the upper end of the first baffle (316) is slidably connected to a pressure sensor (317), and the upper end of the pressure sensor (317) is rotatably connected to a first rolling ball (325).

4. The quick-connect eccentric butterfly valve that is easy to install according to claim 3 is characterized by: A fixing ring (318) is fixedly connected to the inner side of the rotating shell (310), a second rotating groove (319) is opened on the outer side of the rotating ring (311), the fixing ring (318) is arranged on the inner side of the second rotating groove (319), and the rotating ring (311) is rotatably connected to the rotating shell (310) via the fixing ring (318).

5. The quick-connect eccentric butterfly valve that is easy to install according to claim 3 is characterized by: A sliding groove (3191) is provided on the outer side of the insertion rod (315), a first insertion block (320) is fixedly connected to the inner side of the connecting ring (313), the first insertion block (320) is slidably connected to the inner side of the second rotating groove (319), a second spring (321) is fixedly connected to the rear end of the insertion rod (315), and the rear end of the second spring (321) is fixedly connected to the inner wall of the sliding shell (314).

6. The quick-connect eccentric butterfly valve that is easy to install according to claim 5, characterized in that: The upper end of the first baffle (316) is fixedly connected to four groups of second baffles (322), the pressure sensor (317) is located between the four groups of second baffles (322), the outer side of the pressure sensor (317) is provided with a slot (323), the inner side of the second baffle (322) is fixedly connected to a second plug-in block (324), the second plug-in block (324) is slidably connected to the inner side of the slot (323), and the lower end of the pressure sensor (317) is fixedly connected to a fourth spring (326).

7. The quick-connect eccentric butterfly valve that is easy to install according to claim 2, characterized in that: The rear end of the rotating shell (310) is fixedly connected to a fourth spring (326), the outer side of the fourth spring (326) is slidably connected to an insertion shaft (327), the upper end of the insertion shaft (327) is rotatably connected to a second rolling ball (328), and the lower end of the second rolling ball (328) is fixedly connected to a pressure ball (329).

8. The quick-connect eccentric butterfly valve that is easy to install according to claim 7, characterized in that: A push block (330) is fixedly connected to the outer side of the rotating ring (311), and the upper end of the push block (330) is arc-shaped. A third spring (331) is arranged on the outer side of the insertion shaft (327), and the upper end of the third spring (331) is fixedly connected to the second rolling ball (328), and the lower end of the third spring (331) is fixedly connected to the fourth spring (326).

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