Rubber-lined worm gear butterfly valve

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a rubber lining worm gear butterfly valve which comprises a main valve body and a valve rod, a connecting mechanism is installed on the valve wall of the main valve body, and the connecting mechanism is formed by combining an auxiliary valve body, a rubber lining valve seat, a threaded hole A, a semi-circle, a connecting bolt and a sealing ring. A connecting bolt is in threaded connection with the valve wall of the main valve body, a threaded hole A is formed in the valve wall of the auxiliary valve body, the connecting bolt is in threaded connection with the threaded hole A, a rubber lining valve seat is connected between the main valve body and the auxiliary valve body in a sleeved mode, and semi-circles are connected to valve ports in the two ends of the main valve body and valve ports in the two ends of the auxiliary valve body in a welded mode. After a worker separates the connecting bolt from the threaded hole A, the main valve body is separated from the auxiliary valve body, and the sealing ring is separated from the semicircular ring, so that the rubber lining valve seat is separated from the main valve body and the auxiliary valve body, and the worker can conveniently disassemble and replace the rubber lining valve seat.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a rubber-lined worm gear butterfly valve. Background Art

[0002] At present, butterfly valves are widely used as flow regulation and opening and closing control components of media pipelines in industry, agriculture, petrochemical industry and even various fields of people's work and life.

[0003] The valve body of the existing rubber-lined worm gear butterfly valve is usually an integrated structure. When the rubber-lined valve seat in the rubber-lined worm gear butterfly valve is worn by the long-term rotation of the valve plate, it needs to be replaced. The integrated valve body is not easy to disassemble. For this reason, we propose a rubber-lined worm gear butterfly valve to facilitate the disassembly of the valve body of the rubber-lined worm gear butterfly valve and the replacement of the valve seat inside it. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a rubber-lined worm gear butterfly valve.

[0005] The technical solution adopted by the utility model to solve its technical problems is a rubber-lined worm gear butterfly valve, comprising a main valve body and a valve stem, a connecting mechanism installed at the valve wall of the main valve body, the connecting mechanism consisting of an auxiliary valve body, a rubber-lined valve seat, a threaded hole A, a semi-circle, a connecting bolt and a sealing ring, a connecting bolt is threadedly connected to the valve wall of the main valve body, a threaded hole A is opened at the valve wall of the auxiliary valve body, the connecting bolt is threadedly connected to the threaded hole A, a rubber-lined valve seat is sleeved between the main valve body and the auxiliary valve body, semi-circles are welded and connected at both end valve ports of the main valve body and the auxiliary valve body, and sealing rings are sleeved and connected between the semi-circles.

[0006] By adopting the above technical solution, when connecting the valve body of the rubber-lined worm gear butterfly valve, since a connecting mechanism is installed at the valve wall of the main valve body, the connecting mechanism is composed of an auxiliary valve body, a rubber-lined valve seat, a threaded hole A, a semi-circle, a connecting bolt and a sealing ring. Since a connecting bolt is threadedly connected to the valve wall of the main valve body, and a threaded hole A is provided at the valve wall of the auxiliary valve body, the rubber-lined valve seat is sleeved with the main valve body and the auxiliary valve body, so that the valve plate is located between the rubber-lined valve seat. After the connecting bolt is threadedly connected to the threaded hole A, the main valve body and the auxiliary valve body are connected. When the rubber-lined valve seat needs to be replaced, the personnel separates the connecting bolt from the threaded hole A to separate the main valve body and the auxiliary valve body, separates the sealing ring from the semi-circle, and thus separates the rubber-lined valve seat from the main valve body and the auxiliary valve body, making it convenient for personnel to disassemble and replace the rubber-lined valve seat.

[0007] Specifically, it also includes a sealing mechanism, and one end of the valve stem is connected to the sealing mechanism.

[0008] By adopting the above technical solution, the valve plate and the valve stem are conveniently connected through the sealing mechanism.

[0009] Specifically, the sealing mechanism is composed of a valve plate, a sealing bolt, an insert rod, a threaded hole B and an insert tube. An insert tube is welded to one end of the valve stem, and an insert rod is welded to the plate wall of the valve plate. Threaded holes B are provided at the rod wall of the insert rod and the tube wall of the insert tube, and the sealing bolt is connected to the threaded hole B.

[0010] By adopting the above technical solution, when the valve plate is connected, since one end of the valve stem is connected to a sealing mechanism, the sealing mechanism is composed of a valve plate, a sealing bolt, a plug rod, a threaded hole B and a plug tube. After the personnel inserts the plug rod at the valve plate into the plug tube at one end of the valve stem, since the rod wall of the plug rod and the tube wall of the plug tube are both provided with threaded holes B, the sealing bolt is threadedly connected to the threaded hole B, and the plug rod is fixed in the plug tube. After the personnel rotates the turntable, the turntable drives the valve stem to rotate, and the valve stem drives the valve plate to rotate. When the valve plate needs to be removed, the personnel loosens the sealing bolt and separates the plug rod from the plug tube, making it convenient to disassemble and separate the valve plate.

[0011] Specifically, a valve cover is installed on the valve wall of the main valve body, and a valve stem is connected to the cover plate of the valve cover.

[0012] By adopting the above technical solution, the main valve body can be sealed through the valve cover.

[0013] Specifically, a turntable is installed on the other end of the valve stem.

[0014] By adopting the above technical solution, after a person rotates the turntable, the turntable drives the valve stem, and the valve stem drives the valve plate to rotate.

[0015] Beneficial effects of the utility model:

[0016] (1) The rubber-lined worm gear butterfly valve described in the present invention, when connecting the valve body of the rubber-lined worm gear butterfly valve, a connecting mechanism is installed on the valve wall of the main valve body, and the connecting mechanism is composed of an auxiliary valve body, a rubber-lined valve seat, a threaded hole A, a semi-circle, a connecting bolt and a sealing ring. Since the valve wall of the main valve body is threadedly connected with a connecting bolt, and the valve wall of the auxiliary valve body is provided with a threaded hole A, the rubber-lined valve seat is sleeved with the main valve body and the auxiliary valve body, so that the valve plate is located between the rubber-lined valve seat, and the connecting bolt is threadedly connected with the threaded hole A to achieve the connection between the main valve body and the auxiliary valve body. When the rubber-lined valve seat needs to be replaced, the personnel separates the connecting bolt from the threaded hole A to achieve the separation of the main valve body and the auxiliary valve body, and separates the sealing ring from the semi-circle, thereby separating the rubber-lined valve seat from the main valve body and the auxiliary valve body, making it convenient for personnel to disassemble and replace the rubber-lined valve seat.

[0017] (2) The rubber-lined worm gear butterfly valve described in the present invention has a sealing mechanism connected to one end of the valve stem when the valve plate is connected. The sealing mechanism is composed of a valve plate, a sealing bolt, a plug rod, a threaded hole B and a plug tube. After the personnel inserts the plug rod at the valve plate into the plug tube at one end of the valve stem, the plug rod wall and the plug tube wall are provided with threaded holes B, so that the plug rod is fixed in the plug tube after the sealing bolt is threadedly connected with the threaded hole B. After the personnel rotates the turntable, the turntable drives the valve stem to rotate, so that the valve stem drives the valve plate to rotate. When the valve plate needs to be disassembled, the personnel loosens the sealing bolt and separates the plug rod from the plug tube, which facilitates the disassembly and separation of the valve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 It is the main figure of the utility model;

[0020] Figure 2 This is a schematic diagram of the connecting mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the sealing mechanism structure of the present utility model;

[0022] In the figure: 1. Main valve body; 2. Valve cover; 3. Connecting mechanism; 301. Auxiliary valve body; 302. Rubber-lined valve seat; 303. Threaded hole A; 304. Semicircle; 305. Connecting bolt; 306. Sealing ring; 4. Turntable; 5. Valve stem; 6. Sealing mechanism; 601. Valve plate; 602. Sealing bolt; 603. Insert rod; 604. Threaded hole B; 605. Insert cylinder. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] As an embodiment of the present invention, Figure 1 、 Figure 2 and Figure 3As shown, a rubber-lined worm gear butterfly valve described in the present invention includes a main valve body 1 and a valve stem 5. A connecting mechanism 3 is installed at the valve wall of the main valve body 1, and the connecting mechanism 3 is composed of an auxiliary valve body 301, a rubber-lined valve seat 302, a threaded hole A303, a semicircle 304, a connecting bolt 305 and a sealing ring 306. The valve wall of the main valve body 1 is threadedly connected with a connecting bolt 305, and a threaded hole A303 is opened on the valve wall of the auxiliary valve body 301. The connecting bolt 305 is threadedly connected to the threaded hole A303. The rubber-lined valve seat 302 is sleeved between the main valve body 1 and the auxiliary valve body 301. Semicircles 304 are welded and connected at the valve ports at both ends of the main valve body 1 and the valve ports at both ends of the auxiliary valve body 301, and a sealing ring 306 is sleeved and connected between the semicircles 304.

[0025] During use, when the valve body of the rubber-lined worm gear butterfly valve is connected, since the valve wall of the main valve body 1 is equipped with a connecting mechanism 3, the connecting mechanism 3 is composed of an auxiliary valve body 301, a rubber-lined valve seat 302, a threaded hole A303, a semicircle 304, a connecting bolt 305 and a sealing ring 306. Since the valve wall of the main valve body 1 is threadedly connected with the connecting bolt 305, the valve wall of the auxiliary valve body 301 is provided with a threaded hole A303, so that the rubber-lined valve seat 302 is sleeved with the main valve body 1 and the auxiliary valve body 301, so that the valve plate 601 is located between the rubber-lined valve seat 302. After the connecting bolt 305 is threadedly connected to the threaded hole A303, the main valve body 1 and the auxiliary valve body 301 are connected. When the rubber-lined valve seat 302 needs to be replaced, the personnel will separate the connecting bolt 305 from the threaded hole A303 to separate the main valve body 1 from the auxiliary valve body 301, and separate the sealing ring 306 from the semicircle 304, thereby separating the rubber-lined valve seat 302 from the main valve body 1 and the auxiliary valve body 301, making it convenient for personnel to disassemble and replace the rubber-lined valve seat 302.

[0026] like Figure 3 As shown, a sealing mechanism 6 is also included, and one end of the valve stem 5 is connected to the sealing mechanism 6.

[0027] When in use, the valve plate 601 is conveniently connected to the valve stem 5 through the sealing mechanism 6 .

[0028] like Figure 1 and Figure 3 As shown, the sealing mechanism 6 is composed of a valve plate 601, a sealing bolt 602, an insert rod 603, a threaded hole B604 and an insert tube 605. The insert tube 605 is welded to one end of the valve stem 5, and the insert rod 603 is welded to the plate wall of the valve plate 601. Threaded holes B604 are provided on the rod wall of the insert rod 603 and the tube wall of the insert tube 605. The sealing bolt 602 is connected to the threaded hole B604.

[0029] When in use, when connecting the valve plate 601, since one end of the valve stem 5 is connected to the sealing mechanism 6, the sealing mechanism 6 is composed of the valve plate 601, the sealing bolt 602, the plug rod 603, the threaded hole B604 and the plug tube 605. After the personnel inserts the plug rod 603 at the valve plate 601 into the plug tube 605 at one end of the valve stem 5, since the rod wall of the plug rod 603 and the tube wall of the plug tube 605 are both provided with threaded holes B604, the sealing bolt 602 is threadedly connected with the threaded hole B604 to achieve the fixation of the plug rod 603 in the plug tube 605. After the personnel rotates the turntable 4, the turntable 4 drives the valve stem 5 to rotate, so that the valve stem 5 drives the valve plate 601 to rotate. When the valve plate 601 needs to be disassembled, the personnel loosens the sealing bolt 602 and separates the plug rod 603 from the plug tube 605, which facilitates the disassembly and separation of the valve plate 601.

[0030] like Figure 1 As shown, a valve cover 2 is installed on the valve wall of the main valve body 1, and a valve stem 5 is connected to the cover plate of the valve cover 2.

[0031] When in use, the main valve body 1 can be sealed by the valve cover 2 .

[0032] like Figure 1 As shown, a turntable 4 is installed at the other end of the valve stem 5.

[0033] During use, a person rotates the turntable 4 so that the turntable 4 drives the valve stem 5 , and the valve stem 5 drives the valve plate 601 to rotate.

[0034] When the utility model is in use, when the valve body of the rubber-lined worm gear butterfly valve is connected, since the valve wall of the main valve body 1 is equipped with a connecting mechanism 3, the connecting mechanism 3 is composed of an auxiliary valve body 301, a rubber-lined valve seat 302, a threaded hole A303, a semicircle 304, a connecting bolt 305 and a sealing ring 306. Since the valve wall of the main valve body 1 is threadedly connected with the connecting bolt 305, the valve wall of the auxiliary valve body 301 is provided with a threaded hole A303, so that the rubber-lined valve seat 302 and the main valve are connected. After the main valve body 1 and the auxiliary valve body 301 are sleeved together, the valve plate 601 is located between the rubber-lined valve seat 302, and the connecting bolt 305 is threadedly connected to the threaded hole A303 to realize the connection between the main valve body 1 and the auxiliary valve body 301. When the rubber-lined valve seat 302 needs to be replaced, the personnel will separate the connecting bolt 305 from the threaded hole A303 to realize the separation of the main valve body 1 and the auxiliary valve body 301, and separate the sealing ring 306 from the semicircle 304, so as to remove the rubber-lined valve seat 302. The valve seat 302 is separated from the main valve body 1 and the auxiliary valve body 301, which is convenient for personnel to disassemble and replace the rubber-lined valve seat 302. When connecting the valve plate 601, since one end of the valve stem 5 is connected to the sealing mechanism 6, the sealing mechanism 6 is composed of the valve plate 601, the sealing bolt 602, the plug rod 603, the threaded hole B604 and the plug tube 605. After the personnel insert the plug rod 603 at the valve plate 601 into the plug tube 605 at one end of the valve stem 5, due to the rod wall of the plug rod 603, the plug rod 603 is There is a threaded hole B604 on the wall of the insert tube 605, so after the sealing bolt 602 is threadedly connected to the threaded hole B604, the insert rod 603 is fixed in the insert tube 605. After the personnel rotates the turntable 4, the turntable 4 drives the valve stem 5 to rotate, and the valve stem 5 drives the valve plate 601 to rotate. When the valve plate 601 needs to be removed, the personnel loosens the sealing bolt 602 and separates the insert rod 603 from the insert tube 605, making it convenient to disassemble and separate the valve plate 601.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber-lined worm gear butterfly valve, characterized by: The invention comprises a main valve body (1) and a valve stem (5), wherein a connecting mechanism (3) is installed on the valve wall of the main valve body (1), and the connecting mechanism (3) is composed of an auxiliary valve body (301), a rubber-lined valve seat (302), a threaded hole A (303), a semicircle (304), a connecting bolt (305) and a sealing ring (306). The valve wall of the main valve body (1) is threadedly connected with a connecting bolt (305), a threaded hole A (303) is provided on the valve wall of the auxiliary valve body (301), and the connecting bolt (305) is threadedly connected to the threaded hole A (303). The main valve body (1) and the auxiliary valve body (301) are sleeve-connected with the rubber-lined valve seat (302), and the valve ports at both ends of the main valve body (1) and the valve ports at both ends of the auxiliary valve body (301) are welded with semicircles (304), and the semicircles (304) are sleeve-connected with a sealing ring (306).

2. The rubber-lined worm gear butterfly valve according to claim 1, characterized in that: It also includes a sealing mechanism (6), and one end of the valve stem (5) is connected to the sealing mechanism (6).

3. The rubber-lined worm gear butterfly valve according to claim 2, characterized in that: The sealing mechanism (6) is composed of a valve plate (601), a sealing bolt (602), an insert rod (603), a threaded hole B (604) and an insert tube (605). One end of the valve stem (5) is welded with an insert tube (605). The insert rod (603) is welded to the plate wall of the valve plate (601). The rod wall of the insert rod (603) and the tube wall of the insert tube (605) are both provided with a threaded hole B (604). The threaded inner portion of the threaded hole B (604) is connected to the sealing bolt (602).

4. The rubber-lined worm gear butterfly valve according to claim 1, characterized in that: A valve cover (2) is installed on the valve wall of the main valve body (1), and a valve stem (5) is connected to the cover plate of the valve cover (2).

5. The rubber-lined worm gear butterfly valve according to claim 1, characterized in that: A rotary disk (4) is installed at the other end of the valve stem (5).

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