Improved isolating valve

Abstract

The utility model discloses an improved isolating valve, which relates to the technical field of isolating valves and comprises an isolating valve body, a control box and a connecting block, an isolating valve plate is rotatably mounted in an inner cavity of the isolating valve body, the connecting block is mounted at the top of the isolating valve body, and the control box is fixedly mounted at the top of the connecting block. A protection box is mounted on one side of the control box, a driving rod is rotatably mounted in the control box, a worm is fixedly mounted in the middle of the driving rod, one end of the driving rod penetrates through the control box and extends into an inner cavity of the protection box, and a hexagonal extension column is slidably mounted in an inner cavity of one end of the driving rod. According to the improved isolating valve, electric control and manual control are combined, electric control is convenient and is influenced by external energy, and therefore manual control is added, the use stability of the isolating valve can be guaranteed, and the situation that the isolating valve cannot be used due to site limitation or electric appliance damage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of isolation valves, in particular to an improved isolation valve. Background Art

[0002] An isolation valve is a valve in a fluid handling system that is used to block the flow of process media to a given location, usually for maintenance or safety purposes.

[0003] At the same time, the isolation valves currently available on the market are both manually controlled and electrically controlled, but manual control is more troublesome but relatively stable, while electric control is limited by the environment and energy, and the motor is an electrical appliance that is prone to failure. Therefore, a single control method cannot meet the needs of use. At the same time, many types of isolation valves on the market use a worm gear drive to control the rotation of the valve plate, but because the worm and worm gear drive are mechanical movements, they will definitely wear out after long-term use. The traditional method is to regularly remove the cover plate of the isolation valve and then apply lubricating oil. This operation requires the removal of multiple bolts and belongs to the disassembly of the isolation valve structure. Non-professionals are generally not allowed to operate privately, so lubrication is often not carried out in time, and the operation is relatively cumbersome. Therefore, we propose an improved isolation valve. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an improved isolation valve, which solves the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an improved isolation valve, including an isolation valve body, a control box, and a connecting block, the inner cavity of the isolation valve body is rotatably installed with an isolation valve plate, the top of the isolation valve body is installed with a connecting block, the top of the connecting block is fixedly installed with a control box, one side of the control box is installed with a protection box, a drive rod is rotatably installed inside the control box, a worm is fixedly installed in the middle of the drive rod, one end of the drive rod passes through the control box and extends to the inner cavity of the protection box, and a hexagonal extension column is slidably installed in the inner cavity of one end of the drive rod, The magnet is attracted to one end of the hexagonal extension column, and the other end of the hexagonal extension column is fixedly connected to a turntable. The top of the control box is connected to a closed cover plate by bolts, and a lubricating oil box is installed on the upper surface of the closed cover plate. An oil leakage hole is provided at the bottom of the inner cavity of the lubricating oil box, and the oil leakage hole is located above the middle of the worm. A hole connected to the oil leakage hole is provided on the upper surface of the closed cover plate. A mounting groove is provided inside the lubricating oil box, and the mounting groove is connected to the oil leakage hole. A blocking block is slidably installed in the inner cavity of the mounting groove, and a screw is threadedly connected to the inside of the lubricating oil box, and one end of the screw is rotatably connected to one end of the blocking block.

[0006] Preferably, the outer wall of the hexagonal extension column fits with the inner wall of the driving rod, and one end of the inner cavity of the driving rod is fixedly connected with a magnet.

[0007] Preferably, one side of the turntable is connected with a pull ring via a rope, and the turntable is located in the inner cavity of the protection box.

[0008] Preferably, a drive motor is installed on the other side of the control box by bolts, one end of the drive motor output shaft is fixedly connected to the other end of the drive rod, and a motor protective cover is fixedly installed on the other side of the control box, and the motor protective cover is located outside the drive motor.

[0009] Preferably, a sealing gasket is provided on the surface of the barrier block, a nut is fixedly connected to the other end of the screw and is located outside the lubricating oil box, and a transparent plate is fixedly connected to the side of the lubricating oil box.

[0010] Preferably, a worm wheel is rotatably installed in the inner cavity of the control box, the worm wheel is meshed with the worm, a valve stem is fixedly connected to the middle part of the worm wheel, the bottom end of the valve stem passes through the control box, the connecting block, and the isolation valve body in sequence, the bottom end of the valve stem extends to the inner cavity of the isolation valve plate and is fixedly connected to the isolation valve plate, and the valve stem is rotatably connected to the control box, the connecting block, and the isolation valve body.

[0011] Preferably, a limit block is installed on the outer side of one end of the hexagonal extension column located in the inner cavity of the driving rod, and a sliding groove adapted to the limit block is opened on the inner wall of the driving rod.

[0012] Preferably, a limiting groove is provided on the worm wheel, a limiting column is fixedly connected to the bottom of the inner cavity of the control box, and the limiting column extends to the inner cavity of the limiting groove.

[0013] The utility model provides an improved isolation valve, which has the following beneficial effects:

[0014] 1. The improved isolation valve combines electric control with manual control. Electric control is convenient, but it is affected by external energy. Therefore, manual control is added to ensure the stability of the isolation valve and avoid the situation where it cannot be used due to site restrictions or electrical damage.

[0015] 2. The improved isolation valve stores mechanical lubricating oil in a lubricating oil box. When lubrication is needed, use a screwdriver to turn the nut and then turn the screw. The screw is used to move the blocking block to move, so that the blocking block is separated from the inner cavity of the oil leakage hole. At this time, the inner cavity of the oil leakage hole is open, and the oil will slowly drip through the oil leakage hole and the upper hole of the closed cover plate. The dripping mechanical lubricating oil falls on the worm and then contacts the connection point between the drive rod and the worm wheel to achieve lubrication. Then, the nut is turned in the opposite direction in time to push the blocking block forward to block and close the oil leakage hole. When there is an abnormal sound or slow perception during operation, it is only necessary to adjust the position of the blocking block to achieve the addition of lubricating oil. There is no need to disassemble the isolation valve or require professional operation, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model from a top view;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model in a top view and section;

[0018] Figure 3 It is a schematic diagram of the structure of the cross-section of the control box of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the front side of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the lubricating oil box of the utility model.

[0021] In the figure: 1. Isolation valve body; 2. Control box; 3. Drive motor; 4. Motor protection cover; 5. Worm; 6. Drive rod; 7. Limit block; 8. Hexagonal extension column; 9. Protection box; 10. Turntable; 11. Pull ring; 12. Limit groove; 13. Limit column; 14. Valve stem; 15. Worm gear; 16. Lubricating oil box; 17. Oil leakage hole; 18. Nut; 19. Closing cover plate; 20. Isolation valve plate; 21. Connection block; 22. Transparent plate; 23. Screw; 24. Mounting groove; 25. Barrier block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example 1: Reference Figure 1-Figure 5The utility model provides an improved isolation valve, including an isolation valve body 1, a control box 2, and a connecting block 21. An isolation valve plate 20 is rotatably installed in the inner cavity of the isolation valve body 1, a connecting block 21 is fixedly installed on the top of the isolation valve body 1, a control box 2 is fixedly installed on the top of the connecting block 21, a protection box 9 is fixedly installed on one side of the control box 2, a driving rod 6 is rotatably installed inside the control box 2, a worm 5 is fixedly installed in the middle of the driving rod 6, one end of the driving rod 6 passes through the control box 2 and extends to the inner cavity of the protection box 9, a hexagonal extension column 8 is slidably installed in the inner cavity of one end of the driving rod 6, and a magnet is adsorbed on one end of the hexagonal extension column 8 The other end of the hexagonal extension column 8 is fixedly connected to the turntable 10, and the top of the control box 2 is connected to a closed cover plate 19 by bolts. A lubricating oil box 16 is installed on the upper surface of the closed cover plate 19. An oil leakage hole 17 is opened at the bottom of the inner cavity of the lubricating oil box 16, and the oil leakage hole 17 is located above the middle of the worm 5. A hole connected to the oil leakage hole 17 is opened on the upper surface of the closed cover plate 19. A mounting groove 24 is opened inside the lubricating oil box 16, and the mounting groove 24 is connected to the oil leakage hole 17. A blocking block 25 is slidably installed in the inner cavity of the mounting groove 24. A screw 23 is threadedly connected to the inside of the lubricating oil box 16, and one end of the screw 23 is rotatably connected to one end of the blocking block 25.

[0024] The outer wall of the hexagonal extension column 8 fits with the inner wall of the driving rod 6 , so the hexagonal extension column 8 and the driving rod 6 rotate synchronously, and one end of the inner cavity of the driving rod 6 is fixedly connected with a magnet.

[0025] One side of the turntable 10 is connected with a pull ring 11 through a rope. The turntable 10 is located in the inner cavity of the protection box 9. When the turntable 10 is not in use, the turntable 10 is located in the inner cavity of the protection box 9. When in use, the turntable 10 can be pulled to move through the design of the pull ring 11.

[0026] A driving motor 3 is installed on the other side of the control box 2 by bolts, one end of the output shaft of the driving motor 3 is fixedly connected to the other end of the driving rod 6, and a motor protective cover 4 is fixedly installed on the other side of the control box 2, and the motor protective cover 4 is located outside the driving motor 3.

[0027] A sealing gasket is provided on the surface of the blocking block 25 . A nut 18 is fixedly connected to the other end of the screw rod 23 and located outside the lubricating oil box 16 . A transparent plate 22 is fixedly connected to the side of the lubricating oil box 16 .

[0028] A worm gear 15 is rotatably installed in the inner cavity of the control box 2, which meshes with the worm 5. A valve stem 14 is fixedly connected to the middle of the worm gear 15. The bottom end of the valve stem 14 passes through the control box 2, the connecting block 21, and the isolation valve body 1 in sequence. The bottom end of the valve stem 14 extends to the inner cavity of the isolation valve plate 20 and is fixedly connected to the isolation valve plate 20. The valve stem 14 is rotatably connected to the control box 2, the connecting block 21, and the isolation valve body 1.

[0029] The isolation valve structure realizes the combination of electric control and manual control. Electric control is convenient, but it is affected by external energy. Therefore, manual control is added to ensure the stability of the isolation valve and avoid the situation where it cannot be used due to site restrictions or electrical damage.

[0030] By pouring mechanical lubricating oil into the inner cavity of the lubricating oil box 16 and observing the oil amount through the transparent plate 22, when lubrication is needed, use a screwdriver to rotate the nut 18 and then rotate the screw 23, and use the screw 23 to move and pull the blocking block 25 to move, so that the blocking block 25 is separated from the inner cavity of the oil leakage hole 17. At this time, the inner cavity of the oil leakage hole 17 is open, and the oil will slowly drip through the oil leakage hole 17 and the hole on the closed cover plate 19. The dripping mechanical lubricating oil falls on the worm 5 and then contacts the connection point between the drive rod 6 and the worm wheel 15, thereby achieving lubrication. Then, the nut 18 is rotated in the opposite direction in time to push the blocking block 25 forward to block and close the oil leakage hole 17. When there is an abnormal sound or slow perception during operation, it is only necessary to adjust the position of the blocking block 25 to achieve the addition of lubricating oil. There is no need to disassemble the isolation valve or professional operation, which is more convenient.

[0031] A limit block 7 is installed on the outer side of one end of the hexagonal extension column 8 located in the inner cavity of the driving rod 6 , and a sliding groove adapted to the limit block 7 is opened on the inner wall of the driving rod 6 .

[0032] A limiting slot 12 is provided on the worm wheel 15, and a limiting column 13 is fixedly connected to the bottom of the inner cavity of the control box 2, and the limiting column 13 extends to the inner cavity of the limiting slot 12. When the worm wheel 15 rotates 90 degrees, the limiting column 13 will move from one end of the inner cavity of the limiting slot 12 to the other end.

[0033] In summary, when the improved isolation valve is used, it is first connected to the liquid pipeline through the screw holes and matching flanges provided on the isolation valve body 1. When blocking is required, the drive motor 3 is turned on to drive the drive rod 6 to rotate, thereby driving the worm 5 to rotate. The worm 5 drives the worm wheel 15 to rotate 90 degrees, thereby causing the valve stem 14 to rotate 90 degrees with the isolation valve plate 20. At this time, the isolation valve plate 20 rotates to block and isolate the inner cavity channel of the isolation valve body 1, and the liquid cannot circulate.

[0034] When there is no electricity in the use environment or the drive motor 3 is damaged, the pull ring 11 can be pulled to pull the hexagonal extension column 8 to move outside the drive rod 6, so that the turntable 10 moves out of the inner cavity of the protection box 9, and the turntable 10 is manually rotated to drive the drive rod 6 to rotate, thereby controlling the opening and closing of the isolation valve plate 20.

[0035] When lubrication is needed, use a screwdriver to rotate the nut 18 and then rotate the screw 23, and use the screw 23 to move and pull the blocking block 25 to move, so that the blocking block 25 is separated from the inner cavity of the oil leakage hole 17. At this time, the inner cavity of the oil leakage hole 17 is open, and the oil will slowly drip through the oil leakage hole 17 and the hole on the closing cover plate 19. The dripping mechanical lubricating oil falls on the worm 5 and then contacts the connection point between the drive rod 6 and the worm wheel 15, thereby achieving lubrication, and then the nut 18 is reversed in time to push the blocking block 25 forward to block and close the oil leakage hole 17.

[0036] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0037] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An improved isolation valve, comprising an isolation valve body (1), a control box (2), and a connection block (21), characterized in that: An isolation valve plate (20) is rotatably mounted in the inner cavity of the isolation valve body (1), a connection block (21) is mounted on the top of the isolation valve body (1), a control box (2) is fixedly mounted on the top of the connection block (21), a protection box (9) is mounted on one side of the control box (2), a drive rod (6) is rotatably mounted inside the control box (2), a worm (5) is fixedly mounted in the middle of the drive rod (6), one end of the drive rod (6) passes through the control box (2) and extends to the inner cavity of the protection box (9), a hexagonal extension column (8) is slidably mounted in the inner cavity of one end of the drive rod (6), a magnet is attracted to one end of the hexagonal extension column (8), and the other end of the hexagonal extension column (8) is fixedly connected to a turntable (1 0), the top of the control box (2) is connected with a closed cover plate (19) by bolts, a lubricating oil box (16) is installed on the upper surface of the closed cover plate (19), an oil leakage hole (17) is provided at the bottom of the inner cavity of the lubricating oil box (16), and the oil leakage hole (17) is located above the middle of the worm (5), a hole connected with the oil leakage hole (17) is provided on the upper surface of the closed cover plate (19), a mounting groove (24) is provided inside the lubricating oil box (16), and the mounting groove (24) is connected with the oil leakage hole (17), a blocking block (25) is slidably installed in the inner cavity of the mounting groove (24), a screw rod (23) is threadedly connected inside the lubricating oil box (16), and one end of the screw rod (23) is rotatably connected with one end of the blocking block (25).

2. An improved isolation valve according to claim 1, characterized in that: The outer wall of the hexagonal extension column (8) fits the inner wall of the driving rod (6), and a magnet is fixedly connected to one end of the inner cavity of the driving rod (6).

3. An improved isolation valve according to claim 1, characterized in that: One side of the rotating disk (10) is connected to a pull ring (11) via a rope, and the rotating disk (10) is located in the inner cavity of the protection box (9).

4. An improved isolation valve according to claim 1, characterized in that: A drive motor (3) is mounted on the other side of the control box (2) via bolts, one end of the output shaft of the drive motor (3) is fixedly connected to the other end of the drive rod (6), and a motor protective cover (4) is fixedly mounted on the other side of the control box (2), and the motor protective cover (4) is located outside the drive motor (3).

5. An improved isolation valve according to claim 1, characterized in that: A sealing gasket is provided on the surface of the barrier block (25); a nut (18) is fixedly connected to the other end of the screw rod (23) and located outside the lubricating oil box (16); and a transparent plate (22) is fixedly connected to the side of the lubricating oil box (16).

6. An improved isolation valve according to claim 1, characterized in that: A worm wheel (15) is rotatably mounted in the inner cavity of the control box (2), the worm wheel (15) meshing with the worm (5), a valve stem (14) is fixedly connected to the middle of the worm wheel (15), the bottom end of the valve stem (14) passes through the control box (2), the connecting block (21), and the isolation valve body (1) in sequence, the bottom end of the valve stem (14) extends to the inner cavity of the isolation valve plate (20) and is fixedly connected to the isolation valve plate (20), and the valve stem (14) is rotatably connected to the control box (2), the connecting block (21), and the isolation valve body (1).

7. An improved isolation valve according to claim 1, characterized in that: A limit block (7) is installed on the outer side of one end of the hexagonal extension column (8) located in the inner cavity of the driving rod (6), and a sliding groove adapted to the limit block (7) is opened on the inner wall of the driving rod (6).

8. An improved isolation valve according to claim 6, characterized in that: The worm wheel (15) is provided with a limiting groove (12), the bottom of the inner cavity of the control box (2) is fixedly connected to a limiting column (13), and the limiting column (13) extends to the inner cavity of the limiting groove (12).

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