Three-block release valve

Abstract

The utility model discloses a three-block type release valve, and relates to the technical field of valves. The three-block type release valve comprises a valve body and a threaded eduction tube movably clamped on a tank bottom steel plate, a threaded valve cover and an inflow end valve cover are movably clamped on the two sides of the valve body respectively, the inflow end valve cover is in threaded connection with the threaded eduction tube, and the inflow end valve cover is fixedly connected with the side face of the tank bottom steel plate through a fastening bolt. And a ball body is arranged in the threaded valve cover, the valve body and the inflow end valve cover. According to the three-block type release valve, after the whole valve is fixedly connected to the tank bottom steel plate, the sealing performance of the connecting position of the inflow end valve cover and the tank bottom steel plate is good, preliminary fixing is formed through the connecting mode of the threaded eduction pipe and the inflow end valve cover, and then secondary reinforcing is formed through the connecting mode of the inflow end valve cover and the tank bottom steel plate; therefore, the whole valve body and the tank bottom steel plate are fixedly and stably connected, and the whole valve body is convenient to assemble, easy to disassemble and maintain and capable of meeting use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a three-piece relief valve. Background Art

[0002] The working principle of the ball valve is to drive the ball to rotate by rotating the valve stem, thereby realizing the opening and closing of the valve. When the ball rotates 90 degrees, its circular channel is aligned with the inlet and outlet of the pipeline, forming a passage, allowing the medium to pass smoothly; and when the ball rotates another 90 degrees, its circular channel is closed, thereby cutting off the flow of the medium. This design makes the ball valve have extremely small flow resistance and high sealing performance when opening and closing.

[0003] The traditional ball valve has the following shortcomings when it is fixed in position with the target tank body. The ball valve usually has a complex structure and is inconvenient to disassemble and assemble. After long-term use, sealing problems may occur. When subsequent maintenance or overhaul is required, it is not convenient to disassemble and assemble, which makes the maintenance process inconvenient. In addition, the sealing performance at the connection position between the valve body and the tank body is not good, which leads to poor stability of the valve body when used for a long time, and the connection may become loose and leak. In view of the shortcomings of the prior art, the utility model provides a three-piece relief valve to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a three-piece relief valve. After the entire valve is connected and fixed on the tank bottom steel plate, the connection position between the inlet end valve cover and the tank bottom steel plate has good sealing performance, and a preliminary fixation is formed by the connection method between the threaded outlet pipe and the inlet end valve cover, and then a secondary reinforcement is formed by the connection method between the inlet end valve cover and the tank bottom steel plate, thereby ensuring that the connection between the entire valve body and the tank bottom steel plate is fixed and stable, and the overall valve body is easy to assemble and disassemble and maintain, thus meeting the use requirements.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a three-piece relief valve, including a valve body and a threaded outlet pipe movably clamped on the tank bottom steel plate, a threaded valve cover and an inlet end valve cover are movably clamped on both sides of the valve body, and the inlet end valve cover is threadedly connected to the threaded outlet pipe;

[0006] The inlet end valve cover is fixedly connected to the side of the tank bottom steel plate by fastening bolts;

[0007] A sphere is arranged inside the threaded valve cover, the valve body and the inlet end valve cover. A valve stem is rotatably connected to the top of the valve body, and the valve stem is clamped with the sphere.

[0008] Preferably, valve seats are provided inside the threaded valve cover and the inlet end valve cover, and the ball is located inside the valve seat.

[0009] Preferably, a fixed soft plate is provided on the tank bottom steel plate, and the fixed soft plate is clamped between the tank bottom steel plate and the threaded outlet pipe.

[0010] Preferably, an O-ring is movably clamped on the threaded outlet pipe.

[0011] Preferably, a handle is provided on the valve stem.

[0012] The utility model discloses a three-piece relief valve, which has the following beneficial effects:

[0013] The three-piece relief valve has good sealing performance at the connection position between the inlet end valve cover and the tank bottom steel plate after the entire valve is connected and fixed on the tank bottom steel plate. The initial fixation is formed by the connection method between the threaded outlet pipe and the inlet end valve cover, and then the secondary reinforcement is formed by the connection method between the inlet end valve cover and the tank bottom steel plate. Therefore, the connection between the entire valve body and the tank bottom steel plate is guaranteed to be fixed and stable, and the overall valve body is easy to assemble and disassemble and maintain, meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] In the figure: 1. Threaded valve cover; 2. Valve body; 3. Inflow end valve cover; 4. Valve seat; 5. Ball; 6. Valve stem; 7. Fastening bolts; 8. Tank bottom steel plate; 9. Fixed soft plate; 10. Threaded outlet pipe; 11. O-ring. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The embodiment of the present application provides a three-piece relief valve to solve the following shortcomings of a traditional ball valve when fixing its position with a target tank body. Generally, the ball valve has a complex structure and is inconvenient to disassemble and assemble. After long-term use, sealing problems may occur. When subsequent maintenance or overhaul is required, it is not convenient to disassemble and assemble, which makes the maintenance process inconvenient. In addition, the sealing performance at the connection position between the valve body and the tank body is not good, which leads to poor stability of the valve body when used for a long time, and the valve body may become loose and leak at the connection.

[0019] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] The utility model embodiment discloses a three-piece relief valve. Figure 1 As shown, it comprises a valve body 2 and a threaded outlet pipe 10 movably clamped on the tank bottom steel plate 8, a threaded valve cover 1 and an inlet end valve cover 3 are movably clamped on both sides of the valve body 2, and the inlet end valve cover 3 is threadedly connected to the threaded outlet pipe 10;

[0021] The inlet end valve cover 3 is fixedly connected to the side of the tank bottom steel plate 8 by fastening bolts 7;

[0022] A ball 5 is provided inside the threaded valve cover 1 , the valve body 2 and the inlet end valve cover 3 . A valve stem 6 is rotatably connected to the top of the valve body 2 , and the valve stem 6 is clamped with the ball 5 .

[0023] When the device is connected to the tank bottom steel plate 8 as a whole, firstly, the threaded outlet pipe 10 is passed through the inner side of the tank bottom steel plate 8, and the tank bottom steel plate 8 is screwed and tightened with the inlet end valve cover 3. At this time, the valve body 2 and the threaded valve cover 1 are respectively docked with the side of the inlet end valve cover 3 away from the threaded outlet pipe 10. After docking, the threaded valve cover 1, the valve body 2 and the inlet end valve cover 3 are tightened and fixed with bolts. Finally, the fastening bolts 7 are used to pass through the inlet end valve cover 3 and connect and fix them to the tank bottom steel plate 8.

[0024] After the entire valve is connected and fixed on the tank bottom steel plate 8, the connection position between the inlet end valve cover 3 and the tank bottom steel plate 8 has good sealing performance, and a preliminary fixation is formed by the connection between the threaded outlet pipe 10 and the inlet end valve cover 3, and then a secondary reinforcement is formed by the connection between the inlet end valve cover 3 and the tank bottom steel plate 8, thereby ensuring that the connection between the entire valve body and the tank bottom steel plate 8 is fixed and stable, and the overall valve body is easy to assemble and disassemble and maintain, meeting the use requirements.

[0025] A valve seat 4 is provided inside the threaded valve cover 1 and the inlet end valve cover 3, and the ball 5 is located inside the valve seat 4. The device provides a limit for the ball 5 through the design of the valve seat 4. Since the threaded valve cover 1, the valve body 2 and the inlet end valve cover 3 are distributed in three pieces, they are easy to disassemble and assemble, thereby making it easy to assemble or disassemble the valve seat 4 and the ball 5.

[0026] A fixed soft plate 9 is provided on the tank bottom steel plate 8, and the fixed soft plate 9 is clamped between the tank bottom steel plate 8 and the threaded outlet pipe 10. The device is designed with the fixed soft plate 9 so that when the threaded outlet pipe 10 is clamped between the tank bottom steel plate 8, the threaded outlet pipe 10 squeezes the fixed soft plate 9 with the tank bottom steel plate 8 to provide an interface position seal, thereby ensuring that the threaded outlet pipe 10 has good sealing performance at the position of the tank bottom steel plate 8.

[0027] An O-ring 11 is movably clamped on the threaded outlet tube 10. The device is designed with the O-ring 11 so that the threaded outlet tube 10 and the fixed soft plate 9 are tightly clamped, thereby providing a secondary seal at the connection position, so that when the threaded outlet tube 10 is clamped between the tank bottom steel plate 8, the sealing is good and it is not easy to loosen.

[0028] A handle is provided on the valve stem 6, and the valve stem 6 and the ball 5 can be easily rotated by the handle, so as to facilitate the control of the opening and closing of the internal passage of the valve body.

[0029] 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 three-piece relief valve, comprising a valve body (2) and a threaded outlet pipe (10) movably clamped on a tank bottom steel plate (8), characterized in that: The two sides of the valve body (2) are movably connected with a threaded valve cover (1) and an inlet end valve cover (3), and the inlet end valve cover (3) is threadedly connected to a threaded outlet pipe (10); The inlet end valve cover (3) is fixedly connected to the side of the tank bottom steel plate (8) by fastening bolts (7); A sphere (5) is provided inside the threaded valve cover (1), the valve body (2) and the inlet end valve cover (3); the top of the valve body (2) is rotatably connected to a valve stem (6), and the valve stem (6) is clamped with the sphere (5).

2. A three-piece relief valve according to claim 1, characterized in that: A valve seat (4) is provided inside the threaded valve cover (1) and the inlet end valve cover (3), and the ball (5) is located inside the valve seat (4).

3. A three-piece relief valve according to claim 1, characterized in that: A fixed soft plate (9) is provided on the tank bottom steel plate (8), and the fixed soft plate (9) is clamped between the tank bottom steel plate (8) and the threaded outlet pipe (10).

4. A three-piece relief valve according to claim 1, characterized in that: An O-ring (11) is movably clamped on the threaded outlet pipe (10).

5. A three-piece relief valve according to claim 1, characterized in that: The valve stem (6) is provided with a handle.

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