Two-piece cast steel fixed ball valve for the fine chemical industry

Abstract

The present invention discloses a two-piece cast steel fixed ball valve in the fine chemical industry, which relates to the technical field of fixed ball valves. It includes a pipeline, a ball valve rotatably arranged in the pipeline, and a handle rotatably arranged at the top of the pipeline. The bottom of the handle is connected to the top of the ball valve through a rotating rod, and the rotating rod is rotatably connected to the pipeline. A limiting component for restricting the ball valve is arranged at the bottom of the pipeline. In the present invention, by adding the limiting component, the ball valve can be limited, avoiding the situation that the ball valve deflects due to the fast fluid flow rate in the high-pressure pipeline, thereby reducing unnecessary losses and solving the problem that the ball valve deflects due to the fast fluid flow rate in the high-pressure pipeline, resulting in an increase in fluid flow rate and even leakage.

Description

Technical Field

[0001] The present invention relates to the technical field of fixed ball valves, and particularly to a two-piece cast steel fixed ball valve in the fine chemical industry. Background Art

[0002] With the exploitation of important resources such as natural gas and petroleum, a large amount of resources need to be invested in the pipeline industry. In the exploitation, transportation and utilization of these resources, a large number of valves are required for flow control. Ball valves have the characteristics of good airtightness, large flow rate, accurate flow control and high service life, and are widely used in fields such as chemical industry, smelting and energy exploitation.

[0003] In the prior art, the ball valve is controlled by manual driving through the valve stem or the valve disc, and some are driven by motors or pneumatically. The former accounts for a larger proportion and is more widely used. However, in high-pressure pipelines, the fluid velocity is fast. Under the impact of high-speed fluid, the valve ball inside the ball valve is prone to deflection, resulting in an increase in fluid flow rate or even leakage, thus causing certain losses. Therefore, the above problems need to be improved. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems of the prior art, and a two-piece cast steel fixed ball valve in the fine chemical industry is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0006] A two-piece cast steel fixed ball valve in the fine chemical industry, including a pipeline, a ball valve rotatably arranged in the pipeline, and a handle rotatably arranged on the top of the pipeline. The bottom of the handle is connected to the top of the ball valve through a rotating rod, and the rotating rod is rotatably connected to the pipeline. A limiting component for limiting the ball valve is arranged at the bottom of the pipeline;

[0007] The limiting component includes a limiting seat arranged at the bottom end of the pipeline. An installation seat is arranged at the top end of the limiting seat, and the top end of the installation seat extends to the inner bottom of the pipeline. A movable column is rotatably arranged in the limiting seat. A movable rod is threadedly connected to the top end of the movable column. The top end of the movable rod penetrates through the upper and lower ends of the installation seat. A placement groove is formed at the top of the installation seat. A limiting plate is slidably arranged in the placement groove. The top end of the movable rod is connected to the bottom of the limiting plate. A plurality of limiting blocks are evenly arranged on the surface of the limiting plate. A limiting groove for cooperating with the limiting plate and the limiting blocks is formed at the bottom of the ball valve. The bottom end of the movable column penetrates through the bottom of the limiting seat. A knob is arranged at the bottom of the movable column. Guide rods are arranged on the left and right sides inside the limiting seat. A guide plate is arranged in the middle of the movable rod, and the guide plate is slidably connected to the two guide rods.

[0008] Further, a sealing plate is provided at the bottom of the limiting plate. A sealing groove for the sliding fit of the sealing plate is formed in the mounting seat. A first sealing ring is provided on the inner side of the sealing plate, and two second sealing rings for cooperating with the first sealing ring are provided in the sealing groove. The two second sealing rings are respectively located on the upper and lower sides of the first sealing ring.

[0009] Further, a first mounting plate and a second mounting plate are respectively provided above and below the guide plate in the limiting seat. Warning lights are provided on the opposite sides of the first mounting plate and the second mounting plate. Touch switches are provided on the opposite sides of the first mounting plate and the second mounting plate. Trigger blocks for cooperating with the touch switches are provided at the top and bottom of the left end of the guide plate. A power source is provided at the top of the right side of the guide plate. The power source, the touch switch and the warning light are electrically connected.

[0010] Further, an observation port is formed in the front side of the limiting seat, and an observation window is provided at the observation port. The observation window is made of a transparent material specifically.

[0011] Further, a plurality of anti-slip serrations are uniformly provided on the surface of the knob.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the present invention, by adding a limiting component, the limiting of the ball valve can be realized, avoiding the deflection of the ball valve caused by the fast flow rate of the fluid in the high-pressure pipeline, thereby reducing unnecessary losses and solving the problem that the fast flow rate of the fluid in the high-pressure pipeline causes the deflection of the ball valve, resulting in an increase in fluid flow rate and even leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the external view of the two-piece cast steel fixed ball valve in the fine chemical industry proposed by the present invention;

[0015] Figure 2 is the structural schematic diagram of the two-piece cast steel fixed ball valve in the fine chemical industry proposed by the present invention;

[0016] Figure 3 is the display view of the limiting seat in the two-piece cast steel fixed ball valve in the fine chemical industry proposed by the present invention;

[0017] Figure 4 is the structural schematic diagram of the limiting seat in the two-piece cast steel fixed ball valve in the fine chemical industry proposed by the present invention;

[0018] Figure 5 is Figure 4 the enlarged schematic view of the partial A part in

[0019] Reference numerals in the figure: 1, pipeline; 2, handle; 3, ball valve; 4, limit assembly; 41, limit seat; 42, mounting seat; 43, limit plate; 44, movable rod; 45, movable column; 46, knob; 47, sealing plate; 48, guide rod; 49, guide plate; 411, observation window; 471, first sealing ring; 472, second sealing ring; 491, first mounting plate; 492, second mounting plate. Detailed implementation mode

[0020] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] Refer to Figures 1-5 , a two-piece cast steel fixed ball valve in the fine chemical industry, including a pipeline 1, a ball valve 3 rotatably arranged in the pipeline 1, and a handle 2 rotatably arranged on the top of the pipeline 1. The bottom of the handle 2 is connected to the top of the ball valve 3 through a rotating rod, and the rotating rod is rotatably connected to the pipeline 1. A limit assembly 4 for restricting the ball valve 3 is arranged at the bottom of the pipeline 1;

[0023] The limiting component 4 includes a limiting seat 41 arranged at the bottom end of the pipeline 1. An installation seat 42 is arranged at the top end of the limiting seat 41, and the top end of the installation seat 42 extends to the inner bottom of the pipeline 1. A movable column 45 is rotatably arranged in the limiting seat 41. A movable rod 44 is threadedly connected to the top end of the movable column 45. When the movable column 45 rotates, it can drive the movable rod 44 to move upward. The top end of the movable rod 44 penetrates through the upper and lower ends of the installation seat 42. A placement groove is formed at the top of the installation seat 42. A limiting plate 43 is slidably arranged in the placement groove. The top end of the movable rod 44 is connected to the bottom of the limiting plate 43. When the movable rod 44 moves up and down, it can drive the limiting plate 43 to move up and down. A plurality of limiting blocks are evenly arranged on the surface of the limiting plate 43. A limiting groove for cooperating with the limiting plate 43 and the limiting blocks is formed at the bottom of the ball valve 3. Inserting the limiting plate 43 and the plurality of limiting blocks into the limiting groove can realize the limitation of the ball valve 3. The bottom end of the movable column 45 penetrates through the bottom of the limiting seat 41. A knob 46 is arranged at the bottom of the movable column 45. Rotating the knob 46 can drive the movable column 45 to rotate. Guide rods 48 are arranged on the left and right sides inside the limiting seat 41. A guide plate 49 is arranged in the middle of the movable rod 44. The guide plate 49 is slidably connected to the two guide rods 48. Due to the arrangement of the guide plate 49 and the two guide rods 48, and the guide plate 49 is slidably connected to the two guide rods 48, the guiding of the movable rod 44 can be realized. A sealing plate 47 is arranged at the bottom of the limiting plate 43. A sealing groove for cooperating with the sliding of the sealing plate 47 is formed inside the installation seat 42. Due to the formation of the sealing groove, it is convenient for the sealing plate 47 to slide in the sealing groove. A first sealing ring 471 is arranged on the inner side of the sealing plate 47. Two second sealing rings 472 cooperating with the first sealing ring 471 are arranged in the sealing groove. The two second sealing rings 472 are respectively located on the upper and lower sides of the first sealing ring 471. Due to the arrangement of the first sealing ring 471 and the second sealing rings 472, the sealing effect can be realized. A plurality of anti-slip serrations are evenly arranged on the surface of the knob 46. Due to the arrangement of the plurality of anti-slip serrations, the friction between the knob 46 and the palm is increased, playing an anti-slip role.

[0024] Furthermore, a first mounting plate 491 and a second mounting plate 492 are respectively arranged above and below the guide plate 49 inside the limit seat 41. Warning lights are arranged on the opposite sides of the first mounting plate 491 and the second mounting plate 492. Touch switches are arranged on the opposite sides of the first mounting plate 491 and the second mounting plate 492. Trigger blocks cooperating with the touch switches are arranged at the top and bottom of the left end of the guide plate 49. A power supply is arranged at the top of the right side of the guide plate 49. The power supply, the touch switch and the warning light are electrically connected. Moving the guide plate 49 will drive the trigger block to move, so that the trigger block contacts one of the touch switches, thus forming a closed circuit among the power supply, the touch switch and the warning light, making one of the warning lights work. An observation port is provided on the front side of the limit seat 41, and an observation window 411 is arranged at the observation port. The observation window 411 is made of a transparent material. Due to the arrangement of the observation port, it is convenient to observe the internal situation of the limit seat 41.

[0025] Working principle: After the ball valve 3 is rotated, it is necessary to limit the ball valve 3 at this time. First, rotate the knob 46, which will drive the movable column 45 to rotate, then drive the movable rod 44 to move upward, then drive the limit plate 43 to move upward, and then drive the limit block to move upward, so that the limit plate 43 and the limit block are inserted into the limit groove. Through the cooperation of the limit plate 43 and the limit block with the limit groove, the limit of the ball valve 3 can be realized, avoiding the situation that the ball valve 3 deflects due to the fast flow rate of the fluid in the high-pressure pipeline.

[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. Two-piece cast steel fixed ball valve for the fine chemical industry, characterized in that, It includes a pipeline, a ball valve rotatably arranged inside the pipeline, and a handle rotatably arranged at the top of the pipeline. The bottom of the handle is connected to the top of the ball valve through a rotating rod, and the rotating rod is rotatably connected to the pipeline. A limiting component for restricting the ball valve is arranged at the bottom of the pipeline; The limiting component includes a limiting seat arranged at the bottom end of the pipeline. An installation seat is arranged at the top end of the limiting seat, and the top end of the installation seat extends to the inner bottom of the pipeline. A movable column is rotatably arranged inside the limiting seat. A movable rod is threadedly connected to the top end of the movable column. The top end of the movable rod penetrates through the upper and lower ends of the installation seat. A placement groove is formed at the top of the installation seat. A limiting plate is slidably arranged inside the placement groove. The top end of the movable rod is connected to the bottom of the limiting plate. A plurality of limiting blocks are evenly arranged on the surface of the limiting plate. A limiting groove for cooperating with the limiting plate and the limiting blocks is formed at the bottom of the ball valve. The bottom end of the movable column penetrates through the bottom of the limiting seat. A knob is arranged at the bottom of the movable column. Guide rods are arranged on the left and right sides inside the limiting seat. A guide plate is arranged in the middle of the movable rod, and the guide plate is slidably connected to the two guide rods; A sealing plate is arranged at the bottom of the limiting plate. A sealing groove for cooperating with the sliding of the sealing plate is formed inside the installation seat. A first sealing ring is arranged on the inner side of the sealing plate. Two second sealing rings for cooperating with the first sealing ring are arranged inside the sealing groove, and the two second sealing rings are respectively located on the upper and lower sides of the first sealing ring; A first mounting plate and a second mounting plate are respectively arranged above and below the guide plate inside the limiting seat. Warning lights are arranged on the opposite sides of the first mounting plate and the second mounting plate. Touch switches are arranged on the opposite sides of the first mounting plate and the second mounting plate. Trigger blocks for cooperating with the touch switches are arranged at the top and bottom of the left end of the guide plate. A power supply is arranged at the top of the right side of the guide plate. The power supply, the touch switch and the warning light are electrically connected.

2. The two-piece cast steel fixed ball valve for the fine chemical industry according to claim 1, characterized in that, An observation port is formed at the front side of the limiting seat. An observation window is arranged at the observation port, and the observation window is made of a transparent material specifically.

3. The two-piece cast steel fixed ball valve for the fine chemical industry according to claim 1, characterized in that, A plurality of anti-slip sawteeth are evenly arranged on the surface of the knob.

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