Half-lug turbine butterfly valve

Abstract

The utility model relates to the technical field of half-lug butterfly valves, in particular to a half-lug turbine butterfly valve which comprises a valve body, a threaded ring is integrally constructed on the surface of the outer wall of the valve body, a plug is installed in the threaded ring in a screwed mode, and a hexagonal hole is formed in the face, away from the threaded ring, of the plug. An outer ring is installed on the periphery of the threaded ring in a screwed mode, an inner ring is rotatably installed in the outer ring, a convex lug body is integrally constructed at the end, away from the outer ring, of the inner ring, and a ring frame is installed in the threaded ring in a screwed mode. When the half lug butterfly valve is used, the outer ring is in threaded connection with the threaded ring on the surface of the outer wall of the valve body, and meanwhile, the inner ring and the outer ring in the lug body are rotationally connected, so that the lug body can be conveniently installed on the periphery of the valve body, and the plug is installed on the inner periphery of the threaded ring in a threaded mode; a gap between the threaded ring and a valve rod in the butterfly valve can be plugged conveniently, so that the leakage condition is reduced, and meanwhile, the hexagonal hole enables the plug to be convenient to disassemble, assemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-lug butterfly valves, and particularly relates to a semi-lug turbine butterfly valve. Background Technique

[0002] The driving mode of the lug butterfly valve can be selected as manual, worm gear, pneumatic, or electric. The connection mode can be selected as flange or wafer type. The structural form can be selected as single-eccentric, centerline type, double-eccentric, or triple-eccentric. The sealing structure can be selected as soft seal or hard seal. Patent No. CN201821045771.2 discloses an improved turbine semi-lug butterfly valve, in which the lug can rotate 360 degrees and can be rotated to any position to avoid the positions of pipelines and walls. However, due to the correspondence between the position of the semi-lug and the valve stem inside the butterfly valve, when the internal pressure of the semi-lug butterfly valve is too high, leakage is likely to occur between the outer sleeve and the inner sleeve because they can rotate relative to each other. For this reason, we propose a semi-lug turbine butterfly valve. Content of the Utility Model

[0003] Aiming at the problems in the prior art, the utility model provides a semi-lug turbine butterfly valve.

[0004] The technical solution adopted by the utility model to solve its technical problems is a semi-lug turbine butterfly valve, which includes a valve body. A threaded ring is integrally formed on the outer wall surface of the valve body, and a plug is screwed and installed in the threaded ring. A hexagonal hole is opened on the side of the plug away from the threaded ring.

[0005] An outer ring is screwed and installed on the outer periphery of the threaded ring, and an inner ring is rotatably installed in the outer ring. A lug body is integrally formed at one end of the inner ring away from the outer ring. A ring frame is screwed and installed in the threaded ring, and a spring is assembled at one end of the ring frame away from the plug. A rubber plate that abuts against the lug body is assembled at one end of the spring away from the ring frame.

[0006] By adopting the above technical solution, when using the semi-lug butterfly valve, the outer ring is screwed and connected with the threaded ring on the outer wall surface of the valve body. At the same time, the inner ring in the lug body is rotatably connected with the outer ring, so that the lug body can be conveniently installed on the outer periphery of the valve body. And a plug is screwed and installed on the inner periphery of the threaded ring, which is convenient for plugging the gap between the threaded ring and the valve stem inside the butterfly valve, thereby reducing the occurrence of leakage. At the same time, the hexagonal hole makes the plug convenient for disassembly and replacement.

[0007] After the lug body rotates, the ring frame on the inner periphery of the threaded ring conveniently supports the spring, so that the spring can push the rubber plate, and the rubber plate abuts against the lug body, which is convenient for providing a certain limiting performance for the lug body, so that the lug body will not rotate randomly after rotation.

[0008] Specifically, a ring groove is formed on one surface of the valve body located on the inner circumference of the threaded ring, and a ring body that fits with the ring groove is integrally formed at one end of the plug close to the ring groove.

[0009] By adopting the above technical solution, the ring body at one end of the plug fits with the ring groove, which is convenient for improving the tightness when the plug is used for plugging.

[0010] Specifically, a rubber pad is bonded in the ring groove.

[0011] By adopting the above technical solution, the rubber pad on the inner circumference of the ring groove is convenient for improving the tightness after the connection between the ring body and the ring groove.

[0012] Specifically, a plurality of grooves are formed on the outer peripheral surface of the outer ring.

[0013] By adopting the above technical solution, the grooves on the surface of the outer ring make the outer ring convenient for disassembly and assembly, and can support the operation of the lug body.

[0014] Specifically, a rubber block is bonded to one end of the ring frame close to the plug, a plurality of ring grooves are formed on the outer periphery of the plug, and rubber rings are clamped in the ring grooves.

[0015] By adopting the above technical solution, the rubber rings are located in the ring grooves on the outer periphery of the plug, which is convenient for providing a certain limiting performance for the part of the plug inserted into the valve body and can improve the sealing performance of the plug. The rubber block on the surface of the ring frame is convenient for auxiliary support with the plug, thereby reducing the condition of abrasion and damage when rubbing occurs between the ring frame and the plug, and improving the stability of the plug.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. Through the design of the threaded ring, plug, hexagonal hole, outer ring, inner ring and lug body in the technical solution of the present application, when the semi-lug butterfly valve is used, the outer ring is screwed and connected with the threaded ring on the outer wall surface of the valve body. At the same time, the inner ring in the lug body is rotatably connected with the outer ring, so that the lug body can be conveniently installed on the outer periphery of the valve body, and the plug is screwed and installed on the inner circumference of the threaded ring, which is convenient for plugging the gap between the threaded ring and the valve stem inside the butterfly valve, thereby reducing the occurrence of leakage. At the same time, the hexagonal hole makes the plug convenient for disassembly and assembly and replacement.

[0018] 2. Through the design of the ring frame, spring and rubber plate in the technical solution of the present application, after the lug body rotates, the ring frame on the inner circumference of the threaded ring is convenient for supporting the spring, so that the spring can push the rubber plate, and the rubber plate abuts against the lug body, which is convenient for providing a certain limiting performance for the lug body, so that the lug body will not rotate randomly after rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 Isometric view of the present utility model;

[0021] Figure 2 Schematic plan view of the valve body structure of the present utility model;

[0022] Figure 3 Schematic view of the structure at part A of the valve body structure of the present utility model;

[0023] In the figure: 1, valve body; 2, threaded ring; 3, plug; 4, hexagonal hole; 5, outer ring; 6, inner ring; 7, lug body; 8, ring frame; 9, spring; 10, rubber plate; 11, rubber block; 12, ring groove; 13, ring body; 14, rubber gasket; 15, ring groove; 16, rubber ring; 17, groove. Specific embodiments

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please refer to Figures 1-3 , an embodiment of the present utility model provides a technical solution: a semi-lug turbine butterfly valve, including a valve body 1, a threaded ring 2 is integrally formed on the outer wall surface of the valve body 1, and a plug 3 is screwed and installed in the threaded ring 2, and a hexagonal hole 4 is opened on the side of the plug 3 away from the threaded ring 2; an outer ring 5 is screwed and installed on the outer periphery of the threaded ring 2, and an inner ring 6 is rotatably installed in the outer ring 5, and a lug body 7 is integrally formed at one end of the inner ring 6 away from the outer ring 5, a ring frame 8 is screwed and installed in the threaded ring 2, and a spring 9 is assembled at one end of the ring frame 8 away from the plug 3, and a rubber plate 10 that abuts against the lug body 7 is assembled at one end of the spring 9 away from the ring frame 8.

[0026] When in use, when using the semi-lug butterfly valve, the outer ring 5 and the threaded ring 2 on the outer wall surface of the valve body 1 are screwed and connected to each other, and at the same time, the inner ring 6 in the lug body 7 and the outer ring 5 are rotatably connected to each other, so that the lug body 7 can be conveniently installed on the outer periphery of the valve body 1, and a plug 3 is screwed and installed on the inner periphery of the threaded ring 2, which is convenient for blocking the gap between the threaded ring 2 and the valve stem inside the butterfly valve, thereby reducing the occurrence of leakage. At the same time, the hexagonal hole 4 makes it convenient to disassemble and install the plug 3 and is convenient for replacement;

[0027] After the lug body 7 rotates, the ring frame 8 on the inner periphery of the threaded ring 2 is convenient for supporting the spring 9, so that the spring 9 can push the rubber plate 10, so that the rubber plate 10 abuts against the lug body 7, which is convenient for providing a certain limiting performance for the lug body 7, so that the lug body 7 will not rotate randomly after rotation.

[0028] Such asFigure 2 and Figure 3 As shown in and

[0029] , a ring groove 12 is formed on one surface of the valve body 1 located on the inner circumference of the threaded ring 2, and a ring body 13 that fits with the ring groove 12 is integrally formed at one end of the plug 3 close to the ring groove 12.

[0029] During use, the ring body 13 at one end of the plug 3 fits with the ring groove 12, which is convenient for improving the tightness when the plug 3 is used for plugging.

[0030] As Figure 2 and Figure 3 shown in and

[0031] , a rubber gasket 14 is bonded in the ring groove 12.

[0031] During use, the rubber gasket 14 on the inner circumference of the ring groove 12 is convenient for improving the tightness after connection between the ring body 13 and the ring groove 12.

[0032] As Figure 1 shown in , a plurality of grooves 17 are formed on the outer peripheral surface of the outer ring 5.

[0033] During use, the grooves 17 on the surface of the outer ring 5 make the outer ring 5 convenient for disassembly and assembly, and can support the operation of the lug body 7.

[0034] As Figure 2 and Figure 3 shown in , a rubber block 11 is bonded to one end of the ring frame 8 close to the plug 3. A plurality of ring grooves 15 are formed on the outer circumference of the plug 3, and a rubber ring 16 is clamped in the ring grooves 15.

[0035] During use, the rubber ring 16 is located in the ring grooves 15 on the outer circumference of the plug 3, which is convenient for providing a certain limiting performance for the part of the plug 3 inserted into the valve body 1 and can improve the sealing performance of the plug 3. The rubber block 11 on the surface of the ring frame 8 is convenient for auxiliary support with the plug 3, thereby reducing the condition of abrasion damage when rubbing occurs between the ring frame 8 and the plug 3, and improving the stability of the plug 3.

[0036] Working principle and usage process of the utility model: During use, first install the corresponding structural components in appropriate positions. When using the semi-convex lug butterfly valve, the outer ring 5 is screwed and connected to the thread ring 2 on the outer wall surface of the valve body 1. At the same time, the inner ring 6 in the lug body 7 is rotatably connected to the outer ring 5, enabling the lug body 7 to be conveniently installed on the outer periphery of the valve body 1. And a plug 3 is screwed and installed on the inner periphery of the thread ring 2, which is convenient for plugging the gap between the thread ring 2 and the valve stem inside the butterfly valve, thereby reducing the occurrence of leakage. At the same time, the hexagonal hole 4 makes it convenient to disassemble and assemble the plug 3 and is convenient for replacement. At the same time, after the lug body 7 rotates, the ring frame 8 on the inner periphery of the thread ring 2 is convenient for supporting the spring 9, enabling the spring 9 to push the rubber plate 10, so that the rubber plate 10 abuts against the lug body 7, which is convenient for providing a certain limiting performance for the lug body 7, so that the lug body 7 will not rotate randomly after rotation.

[0037] The above has shown and described the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A semi-lug turbine butterfly valve, characterized in that: The valve body (1) comprises a valve body (1), wherein the outer wall surface of the valve body (1) is integrally formed with a threaded ring (2), and a plug (3) is threadedly installed inside the threaded ring (2), and a hexagonal hole (4) is formed on a side of the plug (3) away from the threaded ring (2); An outer ring (5) is screwed on the outer circumference of the threaded ring (2), and an inner ring (6) is rotatably installed inside the outer ring (5); an end of the inner ring (6) away from the outer ring (5) is integrally constructed with a lug body (7); a ring frame (8) is screwed on the inner circumference of the threaded ring (2), and an end of the ring frame (8) away from the plug (3) is equipped with a spring (9); and an end of the spring (9) away from the ring frame (8) is equipped with a rubber plate (10) that abuts against the lug body (7).

2. A semi-ear turbine butterfly valve according to claim 1, characterized in that: The valve body (1) is provided with an annular groove (12) on one side of the inner circumference of the threaded ring (2), and the plug (3) is integrally formed with an annular body (13) that fits the annular groove (12) at one end thereof that is close to the annular groove (12).

3. A semi-lug turbine butterfly valve according to claim 2, characterized in that: A rubber pad (14) is bonded inside the annular groove (12).

4. A semi-lug turbine butterfly valve according to claim 1, characterized in that: The outer peripheral surface of the outer ring (5) is provided with grooves (17), and there are multiple groups of grooves (17).

5. A semi-lug turbine butterfly valve according to claim 1, characterized in that: A rubber block (11) is bonded to one end of the ring frame (8) close to the plug (3), and a ring groove (15) is opened on the outer periphery of the plug (3), and there are multiple groups of ring grooves (15), and a rubber ring (16) is clamped in the ring groove (15).

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