Flange ball valve convenient to disassemble and assemble

Abstract

The utility model discloses a flange ball valve convenient to disassemble and assemble, which comprises a ball valve body and further comprises an external connecting mechanism, the external connecting mechanism comprises external thread rings, pressing rings, rubber connecting rings, an external connecting pipe, a flange plate, an internal rotating cover, a lantern ring, a meter fixing plate and an external fixing plate, and the external thread rings are symmetrically welded outside valve pipes at the two ends of the ball valve body. An outer threaded ring is arranged on the flange plate, a pressing ring is connected to the outer ring face of the outer threaded ring in a pressing mode, a glue connecting ring adheres to a ring opening of the pressing ring and is clamped into a valve pipe of the ball valve body, an outer connecting pipe is welded between a pipe opening, away from the glue connecting ring, of the other side of the pressing ring and the flange plate, and an outer connecting mechanism is arranged at the position of the valve pipe of the ball valve body to replace an original flange of the ball valve body. The ball valve body can be connected with an external pipeline through the external connecting mechanism, the external connecting mechanism is provided with a thread structure and can be detached from the ball valve body, and therefore the ball valve body can be conveniently detached from the inner rotating cover of the external connecting mechanism, and the ball valve body can be conveniently detached and maintained after being installed and used.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a flange ball valve which is easy to assemble and disassemble. Background Art

[0002] Flanged ball valve is also called ball valve. Ball valve and gate valve are valves of the same type. The difference is that its closing part is a sphere, which rotates around the center line of the valve body to open and close. Ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. Flanged ball valve is a valve whose opening and closing part (ball) is driven by the valve stem and rotates around the axis of the valve stem.

[0003] During the use of the ball valve, the water body it controls is different due to the different use environments. For water bodies containing more sediment, the ball valve is prone to wear after long-term use. Therefore, the ball valve needs to be disassembled and maintained regularly. Flange ball valves often use flanges to connect pipes, which makes the process of disassembling the pipeline more cumbersome. Dozens of bolts on the flanges at both ends of the flange ball valve need to be unscrewed one by one, which makes the flange ball valve more troublesome to disassemble and maintain. For this reason, we propose a flange ball valve that is easy to disassemble and assemble. Utility Model Content

[0004] The main purpose of the utility model is to provide a flange ball valve which is easy to disassemble and assemble, and can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A flange ball valve that is easy to disassemble and assemble, comprises a ball valve body and an external connection mechanism, wherein the external connection mechanism comprises an external threaded ring, a pressure ring, a glue ring, an external connecting pipe, a flange, an internal rotating cover, a sleeve ring, a fixing plate and an external fixing plate, external threaded rings are symmetrically welded to the outside of the valve pipes at both ends of the ball valve body, and a pressure ring is crimped on the outer ring surface of the external threaded ring, a glue ring is bonded at the ring mouth of the pressure ring, and the glue ring is clamped into the valve pipe of the ball valve body, an external connecting pipe is welded between the pipe mouth on the other side of the pressure ring away from the glue ring and the flange, and a sleeve is clamped on the outside of the external connecting pipe, an internal rotating cover is welded to the outside of the end face of the sleeve ring, and the cover body of the internal rotating cover is screwed on the outside of the pressure ring and the external threaded ring, a fixing plate is welded to the outer cover wall of the internal rotating cover away from the sleeve ring, and an external fixing plate is welded to the outer surface of the external threaded ring below the fixing plate, and a fastening hole for screwing a fastening bolt is opened between the external fixing plate and the fixing plate.

[0007] Furthermore, the ring body of the rubber ring is an elastic ring body, and the ring body of the rubber ring is squeezed into the valve tube of the ball valve body after being compressed and contracted; the elastic ring body of the rubber ring can be elastically squeezed into the ball valve body for sealing and embedding, so that the pressure ring of the external connecting tube can be sealingly connected to the valve tube of the ball valve body.

[0008] Furthermore, the outer ring surface of the external threaded ring is provided with an external threaded wall, and the inner cover wall of the inner rotating cover is provided with an internal threaded wall; the external threaded ring can be screwed to the inner threaded wall of the inner rotating cover by means of the external threaded wall.

[0009] Furthermore, the diameter of the ring hole of the collar is the same as the diameter of the tube body of the external connecting tube; the ring hole of the collar can be adapted to pass through the external connecting tube.

[0010] Furthermore, the ring body diameters of the pressure ring and the external threaded ring are the same as the housing cavity diameter of the internal rotating housing; the pressure ring and the external threaded ring can be covered in the internal rotating housing.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model replaces the original flange of the ball valve body by arranging an external connection mechanism at the valve pipe of the ball valve body, so that the ball valve body can be connected to the external pipeline with the help of the external connection mechanism, and there is a threaded structure at the external connection mechanism that can be separated from the ball valve body, so that the ball valve body can be conveniently removed from between the inner rotating covers of the external connection mechanism, which facilitates the disassembly and maintenance of the ball valve body after installation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a flange ball valve which is easy to disassemble and assemble.

[0014] Figure 2 The utility model is a schematic diagram of disassembling an inner rotating cover and an outer threaded ring of a flange ball valve which is easy to disassemble and assemble.

[0015] Figure 3 The utility model discloses an exploded view of an external connection mechanism of a flange ball valve which is easy to disassemble and assemble.

[0016] In the figure: 1. ball valve body; 2. external connection mechanism; 3. external threaded ring; 4. pressure ring; 5. rubber ring; 6. external connecting pipe; 7. flange; 8. internal rotating cover; 9. sleeve ring; 10. surface fixing plate; 11. external fixing plate; 12. fastening hole; 13. fastening bolt. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1-3As shown, a flange ball valve that is easy to disassemble and assemble comprises a ball valve body 1 and an external connection mechanism 2, wherein the external connection mechanism 2 comprises an external threaded ring 3, a pressure ring 4, a glue ring 5, an external connection pipe 6, a flange 7, an internal rotation cover 8, a collar 9, a surface fixing plate 10 and an external fixing plate 11, external threaded rings 3 are symmetrically welded to the valve pipes at both ends of the ball valve body 1, and a pressure ring 4 is crimped on the outer ring surface of the external threaded ring 3, a glue ring 5 is bonded to the ring mouth of the pressure ring 4, and the glue ring 5 is stuck in the valve pipe of the ball valve body 1, so that An external connecting pipe 6 is welded between the pipe opening on the other side of the pressure ring 4 away from the rubber ring 5 and the flange 7, and a sleeve is provided on the outside of the external connecting pipe 6. An internal rotating cover 8 is welded to the outside of the end face of the sleeve 9, and the cover body of the internal rotating cover 8 is screwed to the external threaded ring 3 outside the pressure ring 4. A fixing plate 10 is welded to the outer cover wall of the internal rotating cover 8 away from the sleeve 9, and an external fixing plate 11 is welded to the outside of the external threaded ring 3 below the fixing plate 10, and a fastening hole 12 for screwing a fastening bolt 13 is provided between the external fixing plate 11 and the fixing plate 10.

[0019] Among them, the ring body of the rubber ring 5 is an elastic ring body, and the ring body of the rubber ring 5 is squeezed into the valve tube of the ball valve body 1 after being compressed and contracted; the elastic ring body of the rubber ring 5 can be elastically squeezed into the ball valve body 1 for sealing and embedding, so that the pressure ring 4 of the external connecting tube 6 can be sealingly connected to the valve tube of the ball valve body 1.

[0020] The outer ring surface of the external threaded ring 3 is provided with an external threaded wall, and the inner cover wall of the inner rotating cover 8 is provided with an internal threaded wall; the external threaded ring 3 can be screwed to the inner threaded wall of the inner rotating cover 8 by means of the external threaded wall.

[0021] The diameter of the ring hole of the collar 9 is the same as the diameter of the tube body of the external connecting tube 6 ; the ring hole of the collar 9 can be adapted to pass through the external connecting tube 6 .

[0022] The ring body diameters of the pressure ring 4 and the external threaded ring 3 are the same as the housing cavity diameter of the internal rotating housing 8 ; the pressure ring 4 and the external threaded ring 3 can be covered in the internal rotating housing 8 .

[0023] It should be noted that the utility model is a flange ball valve that is easy to disassemble and assemble. An external connection mechanism 2 is arranged at the valve tube of the ball valve body 1 to replace the original flange of the ball valve body 1. After the external threaded ring 3 of the external connection mechanism 2 is welded at both ends of the ball valve body 1, the pressure ring 4 of the external connection mechanism 2 can be pressed against the outer end surface of the external threaded ring 3, so that the rubber ring 5 of the pressure ring 4 can be elastically squeezed into the ball valve body 1, so as to realize the sealing connection between the external connection tube 6 and the valve tube of the ball valve body 1. At this time, the inner rotating cover 8 at the external connection tube 6 is rotated by the sleeve ring 9 on the outside of the external connection tube 6, so that the inner rotating cover 8 can be screwed from the pressure ring 4 to the outside of the external threaded ring 3, and then the surface of the inner rotating cover 8 The fixed plate 10 is docked with the outer fixed plate 11 of the external threaded ring 3, and the fastening bolt 13 can be screwed on the fastening hole 12 of the fixed plate 10 and the outer fixed plate 11 for connection, and then the ball valve body 1 is flange-connected with the external pipeline flange by means of the flange plate 7 of the external connection mechanism 2, and the liquid in the external pipeline can enter the ball valve body 1 from the external connecting pipe 6 and the rubber ring 5 for liquid flow control. When the ball valve body 1 needs to be disassembled for maintenance, the fastening bolt 13 can be unscrewed from the fastening hole 12 of the fixed plate 10 and the outer fixed plate 11, and then the internal rotating cover 8 can be unscrewed from the external threaded ring 3, so that the ball valve body 1 can be conveniently removed from the internal rotating cover 8 of the external connection mechanism 2 for maintenance.

[0024] It should be noted that the utility model is a flange ball valve that is easy to disassemble and assemble. The components in the utility model are all components known to technical personnel in the field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0025] The above shows and describes the basic principle and main features of the utility model and the 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 descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A flange ball valve that is easy to disassemble and assemble, comprising a ball valve body (1), characterized in that: The invention also comprises an external connection mechanism (2), wherein the external connection mechanism (2) comprises an external threaded ring (3), a pressure ring (4), a glue-connecting ring (5), an external connection pipe (6), a flange (7), an internal rotation cover (8), a sleeve ring (9), a surface fixing plate (10) and an external fixing plate (11), the external threaded rings (3) are symmetrically welded to the valve pipes at both ends of the ball valve body (1), and the outer ring surface of the external threaded ring (3) is crimped with a pressure ring (4), the ring mouth of the pressure ring (4) is bonded with a glue-connecting ring (5), and the glue-connecting ring (5) is inserted into the valve pipe of the ball valve body (1), and the pressure ring (4) is away from the glue-connecting ring (5). An external connecting pipe (6) is welded between the other side pipe opening and the flange (7), and a sleeve (9) is clamped on the outside of the external connecting pipe (6). An internal rotating cover (8) is welded on the end surface of the sleeve (9), and the cover body of the internal rotating cover (8) is screwed on the outside of the pressure ring (4) and the external threaded ring (3). A surface fixing plate (10) is welded on the outer cover wall of the internal rotating cover (8) away from the sleeve (9), and an external fixing plate (11) is welded on the outside of the external threaded ring (3) below the surface fixing plate (10). A fastening hole (12) for screwing a fastening bolt (13) is provided between the external fixing plate (11) and the surface fixing plate (10).

2. The flange ball valve that is easy to disassemble and assemble according to claim 1 is characterized in that: The ring body of the rubber-linked ring (5) is an elastic ring body, and after the ring body of the rubber-linked ring (5) contracts under pressure, it squeezes into the valve tube of the ball valve body (1).

3. The flange ball valve that is easy to disassemble and assemble according to claim 1 is characterized in that: The outer ring surface of the external threaded ring (3) is provided with an external threaded wall, and the inner cover wall of the internal rotating cover (8) is provided with an internal threaded wall.

4. The flange ball valve that is easy to disassemble and assemble according to claim 1 is characterized in that: The diameter of the ring hole of the sleeve ring (9) is the same as the diameter of the tube body of the external connecting tube (6).

5. The flange ball valve that is easy to disassemble and assemble according to claim 1 is characterized in that: The diameters of the ring bodies of the pressure ring (4) and the external threaded ring (3) are the same as the diameter of the housing cavity of the internal rotating housing (8).

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