High-strength floating ball valve

Abstract

The utility model discloses a high-strength floating ball valve, which relates to the field of ball valves, and adopts the technical scheme that the high-strength floating ball valve comprises a valve body, and a liquid inlet pipe and a liquid outlet pipe which are fixedly connected to two sides of the valve body. One filtering mechanism slides to be located in the liquid inlet pipe, impurities in liquid are filtered out through one filtering mechanism located in the liquid inlet pipe, and when one filtering mechanism located in the liquid inlet pipe is blocked, the other filtering mechanisms slide to be located in the liquid inlet pipe firstly, and then the other filtering mechanisms slide to be located in the liquid inlet pipe. Then the blocked filtering mechanism is moved in the direction close to the outer frame, so that the multiple filtering mechanisms can be alternately used until the multiple blocked filtering mechanisms are all located in the outer frame, and the multiple blocked filtering mechanisms are cleaned in a centralized manner, so that the cleaning frequency of the filtering mechanisms can be reduced, and the cleaning efficiency of the filtering mechanisms is improved. The filter mechanism does not need to be detached for cleaning every time, and the stop-use frequency of the valve body can be shortened.

Description

Technical Field

[0001] This utility model relates to the field of ball valves, and more specifically, to a high-strength floating ball valve. Background Technology

[0002] A ball valve is a valve in which the opening and closing element (ball) is driven by the valve stem and rotates around the valve axis. It can be used for fluid regulation and control. In a floating ball valve, the ball floats. Under the action of medium pressure, the ball can produce a certain displacement and press tightly against the sealing surface at the outlet end to ensure the outlet end is sealed. Existing ball valves include a flange, a ball, and a valve stem. In use, the pipeline is fixedly installed to the flanges at both ends of the ball valve, and then the flow rate in the pipeline is controlled by moving the valve stem to drive the ball.

[0003] Existing floating ball valves use a filter plate to filter impurities in the liquid during use. However, after prolonged use, the filter plate may become clogged, requiring cleaning. Since there is usually only one filter plate installed inside the ball valve, it needs to be removed from the floating ball valve for cleaning every time it becomes clogged. This results in frequent and inconvenient disassembly and cleaning of the filter plate, and also increases the number of times the floating ball valve is taken out of service.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-strength floating ball valve.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-strength floating ball valve, comprising a valve body and an inlet pipe and an outlet pipe fixedly connected to both sides of the valve body. The inlet pipe has a through groove communicating with its interior, and the outer peripheral wall of the inlet pipe is fixedly connected to an outer frame corresponding to the through groove. Multiple filter mechanisms are slidably installed inside the outer frame. The through groove is for multiple filter mechanisms to pass through. By sliding one of the filter mechanisms, it is made to abut against the inner wall of the inlet pipe. The outer frame is provided with a cover plate for sealing its interior.

[0007] Preferably, the filtering mechanism includes a filter plate, a lead screw, and a threaded block. An installation strip is fixedly connected to the inner side wall of the outer frame. The lead screw is vertically arranged and rotatably mounted on the installation strip. The lead screw is helically connected to the threaded block. A clamping assembly for clamping the top of the filter plate is provided on the side of the threaded block away from the valve body.

[0008] Preferably, the clamping assembly includes a first clamping block, a second clamping block, and a spring. The first clamping block has an L-shaped cross-section. The two ends of the spring are respectively fixedly connected to the side of the threaded block away from the valve body and the vertical part of the first clamping block. A guide rod is fixedly connected to one side of the threaded block. The spring is sleeved on the outer peripheral wall of the guide rod. The second clamping block is fixedly connected to one side of the threaded block. The side of the filter plate away from the valve body has a first slot for the horizontal part of the first clamping block to be engaged. The side of the filter plate close to the valve body has a second slot for the second clamping block to be engaged.

[0009] Preferably, the filter plate has an inclined surface on the side away from the valve body, the inclined surface is inclined downward along the direction close to the valve body, and a collection frame is fixedly connected to the inclined surface, the side of the collection frame near the outer frame is open.

[0010] Preferably, the inner circumferential wall of the liquid inlet pipe is fixedly connected with a plurality of limiting blocks corresponding to the filter plate, and the limiting blocks are provided with limiting grooves for the bottom of the filter plate to be embedded.

[0011] Preferably, the cover plate is fixedly installed on the outer frame by bolts, and a sealing gasket is fixedly connected to the bottom surface of the cover plate, the sealing gasket being used to abut against the inner sidewall of the outer frame.

[0012] In summary, this utility model has the following beneficial effects: This solution installs an outer frame connected to the inside of the inlet pipe, and multiple filter mechanisms are slidably installed inside the outer frame. One filter mechanism is slid to pass through a groove and abut against the inner wall of the inlet pipe for filtration. At this time, the other filter mechanisms are all located inside the outer frame. When liquid flows into the valve body through the inlet pipe, impurities in the liquid are filtered by one of the filter mechanisms located inside the inlet pipe. When one of the filter mechanisms in the inlet pipe becomes clogged, other unused filter mechanisms are slid through the groove until they abut against the inner wall of the inlet pipe. Then, the previously used and clogged filter mechanism is moved towards the outer frame and through the groove until it is located inside the outer frame. This allows multiple filter mechanisms to be used alternately until all clogged filter mechanisms are located inside the outer frame. Afterward, the clogged filter mechanisms are cleaned centrally, reducing the number of times the filter mechanisms need cleaning and shortening the valve body's downtime, allowing for better continuous operation of the valve body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a partial cross-sectional view of the liquid inlet pipe in this utility model;

[0015] Figure 3 for Figure 2 Enlarged schematic diagram of part A;

[0016] Figure 4 This is a cross-sectional view of the filter plate, collection frame and clamping assembly in this utility model.

[0017] In the diagram: 1. Valve body; 2. Inlet pipe; 3. Through groove; 4. Outer frame; 5. Filtering mechanism; 501. Filter plate; 502. Lead screw; 503. Threaded block; 6. Cover plate; 7. Mounting strip; 8. Clamping assembly; 801. Clamping block one; 802. Clamping block two; 803. Spring; 9. Guide rod; 10. Slot one; 11. Slot two; 12. Inclined surface; 13. Collection frame; 14. Limiting block; 15. Limiting groove; 16. Sealing gasket. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Example:

[0020] A high-strength floating ball valve, such as Figures 1 to 4 As shown, the device includes a valve body 1 and an inlet pipe 2 and an outlet pipe welded to both sides of the valve body 1. The valve body 1 is made of cast iron. Flanges are welded to the outer peripheral walls of both the inlet pipe 2 and the outlet pipe. A through groove 3 communicating with the interior of the inlet pipe 2 is provided, and an outer frame 4 corresponding to the through groove 3 is welded to the outer peripheral wall of the inlet pipe 2. Multiple filter mechanisms 5 are slidably installed inside the outer frame 4. The through groove 3 allows multiple filter mechanisms 5 to pass through. By sliding one of the filter mechanisms 5, it is made to abut against the inner wall of the inlet pipe 2. A cover plate 6 is provided on the outer frame 4 to close its interior. The filter mechanism 5 includes a filter plate 501, a lead screw 502, and a threaded block 503. Mounting strips 7 are welded to the inner side wall of the outer frame 4. The number and position of the mounting strips 7 correspond one-to-one with the number of filter mechanisms 5. The mounting strips 7 are welded to one of the inner side walls of the outer frame 4, and the mounting strips 7 and the other inner side walls of the outer frame 4 are spaced apart. The rod 502 is vertically mounted and rotatably installed on the mounting strip 7. The lead screw 502 is rotatably mounted on the mounting strip 7 via a servo motor. The servo motor is mounted on the top of the mounting strip 7 via fastening bolts. The output end of the servo motor passes through the mounting strip 7 and is welded to the top of the lead screw 502. The number and position of the servo motor and the lead screw 502 are one-to-one. The lead screw 502 is connected to the threaded block 503 by a helical drive. The outer peripheral wall of the lead screw 502 is machined with an external thread. The inside of the threaded block 503 is machined with an internal thread that matches the outer peripheral wall of the lead screw 502. A clamping assembly 8 for clamping the top of the filter plate 501 is provided on the side of the threaded block 503 away from the valve body 1. The cover plate 6 is fixedly installed on the outer frame 4 by bolts. Both the cover plate 6 and the outer frame 4 are provided with threaded holes for bolt connection. A sealing gasket 16 is adhered to the bottom surface of the cover plate 6. The sealing gasket 16 is used to abut against the inner side wall of the outer frame 4.

[0021] The clamping assembly 8 includes a first clamping block 801, a second clamping block 802, and a spring 803. The first clamping block 801 has an L-shaped cross-section. The two ends of the spring 803 are respectively welded to the side of the threaded block 503 away from the valve body 1 and the vertical part of the first clamping block 801. A guide rod 9 is welded to one side of the threaded block 503, and one end of the guide rod 9 is welded to the side of the threaded block 503 away from the valve body 1. The spring 803 is sleeved on the outer peripheral wall of the guide rod 9. The second clamping block 802 is welded to the side of the threaded block 503 away from the valve body 1. The filter plate 501 has a slot 10 on the side away from the valve body 1 for the horizontal part of the first clamping block 801 to be inserted, and a slot 21 on the side of the filter plate 501 close to the valve body 1 for the second clamping block 802 to be inserted.

[0022] The filter plate 501 has an inclined surface 12 on the side away from the valve body 1. The inclined surface 12 is inclined downward along the direction close to the valve body 1. A collection frame 13 is welded on the inclined surface 12. The side of the collection frame 13 close to the outer frame 4 is open. The collection frame 13 has multiple filter holes for liquid flow. Multiple limiting blocks 14 corresponding to the filter plate 501 are welded on the inner peripheral wall of the liquid inlet pipe 2. The limiting blocks 14 have limiting grooves 15 for the bottom of the filter plate 501 to be embedded.

[0023] First, the two pipes are installed on the flanges located on the outer periphery of the inlet pipe 2 and the outlet pipe respectively using mounting bolts. Then, the valve body 1 is operated (the operation of the floating ball valve is existing technology) until the inside of the valve body 1 is connected to the inlet pipe 2 and the outlet pipe respectively. Next, one of the filter mechanisms 5 is moved towards the inlet pipe 2. At this time, one of the servo motors is activated, driving the corresponding lead screw 502 to rotate clockwise. When the lead screw 502 rotates clockwise, it drives the corresponding threaded block 503 to move towards the inlet pipe 2. When the threaded block 503 moves, it drives the corresponding filter plate 501 to move. At this time, the filter plate 501 is moved by the movement of the filter plate 501 located on one side of the threaded block 503. The clamping assembly 8 clamps and installs the top of the filter plate 501, causing one of the filter plates 501 to detach from the outer frame 4. The filter plate 501, the threaded block 503, and the clamping assembly 8 all pass through the through groove 3 until one of the filter plates 501 abuts against the inner peripheral wall of the inlet pipe 2 for filtration. At the same time, the bottom of one of the filter plates 501 located in the inlet pipe 2 is embedded in the limiting groove 15 on the corresponding limiting block 14. When one of the filtering mechanisms 5 moves, it does not contact other filtering mechanisms 5. At this time, the inclined surface 12 on the filter plate 501 is set away from the valve body 1, and the collection frame 13 installed on the inclined surface 12 does not contact the limiting block 14. The bottom of the filter plate 501 is embedded in the limiting groove 15 on the corresponding limiting block 14, which serves as a limiting effect and improves the stability of the filter plate 501 when used in the liquid inlet pipe 2. When one of the filter plates 501 is in contact with the inner wall of the liquid inlet pipe 2, the other filter plates 501 are located inside the outer frame 4. Then, the liquid is introduced into the liquid inlet pipe 2 through one of the pipes. At this time, the liquid comes into contact with the side of one of the filter plates 501 located in the liquid inlet pipe 2 that is away from the valve body 1. The impurities in the liquid are filtered by the filter plate 501 located in the liquid inlet pipe 2 because the side of the filter plate 501 away from the valve body 1 has an inclined surface 12. The inclined direction of the filter plate 501 is gradually downward along the direction close to the valve body 1, so that when impurities adhere to the side of the filter plate 501 away from the valve body 1, some larger impurities can gradually fall down along the inclined direction of the inclined surface 12 into the collection frame 13. The liquid flows back into the inlet pipe 2 through the filter holes opened on the collection frame 13, while the impurities are collected in the collection frame 13. During use, the bolts of the filter plate 501 are installed in the threaded holes on the cover plate 6 and the outer frame 4 respectively, and the sealing gasket 16 is pressed against the inner side wall of the outer frame 4. The sealing gasket 16 increases the sealing between the cover plate 6 and the outer frame 4. Cast iron has the characteristics of high strength, which can increase the torsional resistance of the valve body 1.

[0024] When one of the filter plates 501 located in the inlet pipe 2 becomes clogged, other unused filter mechanisms 5 are slid in first for filtration. At this time, the servo motor corresponding to the unused filter plate 501 is started and drives the lead screw 502 corresponding to the unused filter plate 501 to rotate clockwise. When the lead screw 502 rotates clockwise, it drives the threaded block 503 and the filter plate 501 to move towards the inlet pipe 2, so that one of the unused filter plates 501, its corresponding threaded block 503, and the clamping assembly 8 pass through the through groove 3 until one of the unused filter plates 501 and the inlet pipe 2 are connected. The inner circumferential wall of pipe 2 abuts against the filter plate 501, causing the bottom of the unused filter plate 501 to embed into the limiting groove 15 on the corresponding limiting block 14. Then, by adjusting the servo motor corresponding to the clogged filter plate 501, the lead screw 502 corresponding to the clogged filter plate 501 is driven to rotate counterclockwise. When the lead screw 502 rotates counterclockwise, it drives the threaded block 503 and the clogged filter plate 501 to move away from the inlet pipe 2. At this time, the threaded block 503, the clamping assembly 8, the filter plate 501, the collection frame 13, and the impurities located in the collection frame 13 are separated from the inside of the inlet pipe 2 and pass through. The through groove 3 is opened until multiple clogged filter plates 501 are located inside the outer frame 4. Then, the bolts are removed to disengage them from the threaded holes on the cover plate 6 and outer frame 4. The cover plate 6 is then pulled to move the sealing gasket 16 until it no longer abuts against the inner wall of the outer frame 4. At this point, the interior of the outer frame 4 is connected to the outside, and the clogged filter plates 501 are located inside the outer frame 4. The user then pulls the clamping block 801 away from the valve body 1, causing the spring 803 to stretch and deform until the horizontal part of the clamping block 801 disengages from the slot 10 on the filter plate 501. The spring 803 is then fitted onto the guide. The outer peripheral wall of rod 9 serves as a guide when spring 803 is pulled. After the horizontal part of clamping block 1 801 disengages from slot 1 10, the clogged filter plate 501 is pulled until clamping block 2 802 is no longer embedded in slot 2 11 on filter plate 501. Then, multiple clogged filter plates 501 and collection frame 13 are removed from inside the outer frame 4 for impurity cleaning. Multiple clogged filter plates 501 can be cleaned in a concentrated manner, reducing the number of times filter plates 501 need to be cleaned and shortening the downtime of valve body 1 when replacing filter plates 501, so that valve body 1 can operate more continuously.

[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A high-strength floating ball valve, comprising a valve body (1) and a liquid inlet pipe (2) and a liquid outlet pipe fixedly connected on both sides of the valve body (1), characterized in that: The inlet pipe (2) is provided with a through groove (3) communicating with the inside thereof, and the outer peripheral wall of the inlet pipe (2) is fixedly connected with an outer frame (4) provided correspondingly with the through groove (3), a plurality of filtering mechanisms (5) are slidingly installed in the outer frame (4), the through groove (3) is used for the plurality of filtering mechanisms (5) to pass through, one of the filtering mechanisms (5) is slid to abut against the inner wall of the inlet pipe (2), and the outer frame (4) is provided with a cover plate (6) for closing the inside thereof.

2. A high strength floating ball valve according to claim 1, characterized in that: The filtering mechanism (5) comprises a filter plate (501), a lead screw (502) and a threaded block (503), the inner side wall of the outer frame (4) is fixedly connected with a mounting strip (7), the lead screw (502) is vertically arranged and rotatably installed on the mounting strip (7), the lead screw (502) is in screw transmission connection with the threaded block (503), and the side, away from the valve body (1), of the threaded block (503) is provided with a clamping assembly (8) for clamping the top of the filter plate (501).

3. A high strength floating ball valve according to claim 2, characterized in that: The clamping assembly (8) comprises a clamping block one (801), a clamping block two (802) and a spring (803), the clamping block one (801) is L-shaped in cross section, the two ends of the spring (803) are fixedly connected to the side, away from the valve body (1), of the threaded block (503) and the vertical portion of the clamping block one (801) respectively, one side of the threaded block (503) is fixedly connected with a guide rod (9), the spring (803) is sleeved on the outer peripheral wall of the guide rod (9), the clamping block two (802) is fixedly connected to one side of the threaded block (503), one side of the filter plate (501), away from the valve body (1), is provided with a clamping groove one (10) for the horizontal portion of the clamping block one (801) to be clamped, and one side of the filter plate (501), close to the valve body (1), is provided with a clamping groove two (11) for the clamping block two (802) to be clamped.

4. A high strength floating ball valve according to claim 3, characterized in that: The side, away from the valve body (1), of the filter plate (501) is provided with an inclined surface (12), the inclined surface (12) is inclined downward along the direction close to the valve body (1), and the inclined surface (12) is fixedly connected with a collecting frame (13), and the side, close to the outer frame (4), of the collecting frame (13) is provided with an opening.

5. A high strength floating ball valve according to claim 2, characterized in that: The inner peripheral wall of the inlet pipe (2) is fixedly connected with a plurality of limiting blocks (14) provided correspondingly with the filter plate (501), and the limiting block (14) is provided with a limiting groove (15) for the bottom of the filter plate (501) to be embedded.

6. A high strength floating ball valve according to claim 1, characterized in that: The cover plate (6) is fixedly installed on the outer frame (4) by bolts, and the bottom surface of the cover plate (6) is fixedly connected with a sealing gasket (16), and the sealing gasket (16) is used for abutting tightly against the inner side wall of the outer frame (4).

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