Pipeline dome valve

Abstract

The utility model provides a pipeline dome valve which comprises a dome valve shell, bearing seats are installed on the two sides of the dome valve shell, oil injection holes are formed in the top ends of the bearing seats, a first rotating shaft and a second rotating shaft are installed in the two bearing seats respectively, and the first rotating shaft and the second rotating shaft extend into the dome valve shell from the outside of the dome valve shell. The top ends, located in the dome valve shell, of the first rotating shaft and the second rotating shaft are provided with valve elements, a first installation groove is formed in the position, close to the valve elements, of the peripheral side of the inner wall of the dome valve shell, a rubber sleeve is installed on one side of the first installation groove, an air channel is arranged on the other side of the first installation groove, and a box is installed on one side of the dome valve shell. And a second mounting groove is formed in one side of the box body, and a driving mechanism is mounted in the second mounting groove. According to the device, the dome valve can be fixed on a pipeline, the stability of the dome valve is improved, lubricating oil can be conveniently supplemented to the rotating part of the dome valve, the sealing effect of the dome valve is ensured, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of dome valves, and more specifically, particularly relates to a pipeline dome valve. Background Art

[0002] The uniqueness of the dome valve is that it can cut off the flowing material flow or static material column entering the pressure tank, and then close to achieve sealing. This ensures that the filling rate of the pressure tank is 100%, and there is no need to rely on the level meter of the sending tank, so the control principle is simple and reliable.

[0003] When the dome valve is installed on the pipeline, the weight of the material will act on the dome valve when the pipeline is closed, and the rotation of the valve core and the driving mechanism when the dome valve is working will cause the dome valve to vibrate and shake. After long-term use, the dome valve is prone to loosening, affecting the air tightness of the entire pipeline and the sealing effect of the dome valve. The valve core of the dome valve will rub against the bearing seat when rotating, and it is prone to wear after long-term use, affecting the sealing effect of the dome valve. In addition, the dome valve has a complex structure, and it is not convenient to quickly disassemble and add lubricating oil when installed on the pipeline.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a pipeline dome valve is provided to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a pipeline dome valve, which is achieved by the following specific technical means:

[0006] A pipeline dome valve comprises a dome valve housing, bearing seats are installed on both sides of the dome valve housing, an oil filling hole is provided at the top of the bearing seats, a first rotating shaft and a second rotating shaft are respectively installed in the two bearing seats, and the first rotating shaft and the second rotating shaft both extend from the outside to the inside of the dome valve housing, a valve core is installed at the top of the first rotating shaft and the second rotating shaft located inside the dome valve housing, a first mounting groove is provided on the circumferential side of the inner wall of the dome valve housing at a position close to the valve core, a rubber sleeve is installed on one side of the first mounting groove, and an air path is provided on the other side of the first mounting groove, a box body is installed on one side of the dome valve housing, a second mounting groove is provided on one side of the box body, a driving mechanism is installed in the second mounting groove, a connecting rod is installed on the top and bottom ends of the box body, a fixing clamp is installed on one end of the connecting rod, a movable clamp is installed on one side of the fixing clamp through a hinge, threaded holes are provided at the positions where the fixing clamp and the movable clamp are abutted, a fastening screw is threadedly connected between the two threaded holes, and a lubrication mechanism is installed on the top of the box body.

[0007] Furthermore, the driving mechanism includes a transmission rod and a hydraulic rod, the transmission rod is rotatably installed on one side of the box body, and the transmission rod is connected to the first rotating shaft, a driving ring is installed on one side of the transmission rod located inside the box body, a pressing block is installed on one side of the driving ring, the hydraulic rod is rotatably installed on one side of the second mounting groove, and the output end of the hydraulic rod is connected to the driving ring.

[0008] Furthermore, a control valve is installed at the bottom end of the second mounting groove at a position close to the pressing block, an air intake pipe is installed at the bottom end of the control valve, and the air intake pipe is connected to the air path.

[0009] Furthermore, the lubrication mechanism includes a mounting seat, which is mounted on the top of the box body, an oil storage barrel is mounted on the top of the mounting seat, an oil storage tank is provided on the top of the oil storage barrel, a first slider is slidably mounted in the oil storage tank, a sealing strip is installed at the bottom end of the peripheral side of the first slider, an oil circuit is installed at the bottom end of the oil storage barrel, and the oil circuit is connected to the oil filling hole at the top of the bearing seat, a slide groove is provided on one side of the mounting seat, a second slider is slidably mounted in the slide groove, an L-shaped plate is installed on one side of the second slider, and the bottom end of the L-shaped plate is connected to the top of the first slider.

[0010] Furthermore, a screw is rotatably installed in the slide groove, and the screw passes through the upper and lower ends of the second sliding block and is threadedly connected to the second sliding block.

[0011] Furthermore, a motor is installed at the bottom end of the slideway, and the output end of the motor is connected to the screw drive through a coupling.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The pipeline dome valve of the utility model is convenient for fixing the dome valve on the pipeline through the coordinated use of the connecting rod, the fixing clamp, the movable clamp, the threaded hole, the fastening screw, the lubrication mechanism and the oil filling hole, thereby reducing the loosening and deviation of the dome valve due to shaking during operation, and at the same time, the rotating part of the installed dome valve is supplemented with lubricating oil, reducing the wear between the rotating shaft and the bearing seat, thereby improving the sealing effect of the dome valve, extending the service life of the dome valve and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0015] Figure 2 It is a front cross-sectional schematic diagram of a partial structure of the utility model.

[0016] Figure 3 It is a side sectional schematic diagram of a partial structure of the utility model.

[0017] Figure 4 The utility model Figure 2 Enlarged schematic diagram of part A.

[0018] Figure 5 The utility model Figure 2 Schematic diagram of the enlarged portion B.

[0019] Figure 6 The utility model Figure 3 Enlarged schematic diagram of part C.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Dome valve housing; 2. Bearing seat; 3. Oil filling hole; 4. First rotating shaft; 5. Second rotating shaft; 6. Valve core; 7. First mounting groove; 8. Rubber sleeve; 9. Air circuit; 10. Box; 11. Second mounting groove; 12. Connecting rod; 13. Fixing clamp; 14. Movable clamp; 15. Threaded hole; 16. Fastening screw; 17. Transmission rod; 18. Hydraulic rod; 19. Driving ring; 20. Pressing block; 21. Control valve; 22. Inlet pipe; 23. Mounting seat; 24. Oil storage barrel; 25. Oil storage tank; 26. First slider; 27. Sealing strip; 28. Oil circuit; 29. ​​Slide; 30. Second slider; 31. L-shaped plate; 32. Screw; 33. Motor. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To Attachment Figure 6 As shown:

[0027] The utility model provides a pipeline dome valve, comprising a dome valve housing 1, bearing seats 2 are installed on both sides of the dome valve housing 1, an oil injection hole 3 is provided at the top of the bearing seats 2, a first rotating shaft 4 and a second rotating shaft 5 are respectively installed in the two bearing seats 2, and the first rotating shaft 4 and the second rotating shaft 5 are extended from the outside to the inside of the dome valve housing 1, a valve core 6 is installed at the top of the first rotating shaft 4 and the second rotating shaft 5 located inside the dome valve housing 1, a first installation groove 7 is provided on the circumferential side of the inner wall of the dome valve housing 1 at a position close to the valve core 6, and a rubber sleeve 8 is installed on one side of the first installation groove 7 A gas path 9 is provided on the other side of the first mounting groove 7, a box body 10 is installed on one side of the dome valve housing 1, a second mounting groove 11 is provided on one side of the box body 10, a driving mechanism is installed in the second mounting groove 11, connecting rods 12 are installed on the top and bottom ends of the box body 10, a fixing clamp 13 is installed on one end of the connecting rod 12, a movable clamp 14 is installed on one side of the fixing clamp 13 through a hinge, threaded holes 15 are provided at the positions where the fixing clamp 13 and the movable clamp 14 are fitted, a fastening screw 16 is threadedly connected between the two threaded holes 15, and a lubrication mechanism is installed on the top of the box body 10.

[0028] Among them, the driving mechanism includes a transmission rod 17 and a hydraulic rod 18. The transmission rod 17 is rotatably installed on one side of the box body 10, and the transmission rod 17 is connected to the first rotating shaft 4. The transmission rod 17 is installed with a driving ring 19 on one side located in the box body 10, and a pressing block 20 is installed on one side of the driving ring 19. The hydraulic rod 18 is rotatably installed on one side of the second mounting groove 11, and the output end of the hydraulic rod 18 is connected to the driving ring 19, and the valve core 6 is driven to open and close through the driving mechanism.

[0029] Among them, a control valve 21 is installed at the bottom end of the second installation groove 11 near the pressing block 20, and an air intake pipe 22 is installed at the bottom end of the control valve 21, and the air intake pipe 22 is connected to the air path 9. Gas is injected into the first installation groove 7 through the control valve 21, so that the rubber sleeve 8 can be against one side of the top of the valve core 6 to achieve closure.

[0030] Among them, the lubrication mechanism includes a mounting seat 23, which is mounted on the top of the box body 10, and an oil storage barrel 24 is mounted on the top of the mounting seat 23, and an oil storage tank 25 is provided at the top of the oil storage barrel 24. A first slider 26 is slidably mounted in the oil storage tank 25, and a sealing strip 27 is installed at the bottom end of the peripheral side of the first slider 26. An oil passage 28 is installed at the bottom end of the oil storage barrel 24, and the oil passage 28 is connected to the oil filling hole 3 at the top of the bearing seat 2, and a slide groove 29 is provided on one side of the mounting seat 23. A second slider 30 is slidably mounted in the slide groove 29, and an L-shaped plate 31 is installed on one side of the second slider 30, and the bottom end of the L-shaped plate 31 is connected to the top of the first slider 26. The second slider 30 slides in the slide groove 29, and through the transmission of the L-shaped plate 31, the first slider 26 is driven to slide in the oil storage tank 25, thereby controlling the lubricating oil to enter the oil filling hole 3 through the oil passage 28.

[0031] A screw rod 32 is rotatably installed in the slide groove 29 , and the screw rod 32 passes through the upper and lower ends of the second slider 30 and is threadedly connected to the second slider 30 . The screw rod 32 rotates to drive the second slider 30 to slide up and down in the slide groove 29 .

[0032] A motor 33 is installed at the bottom end of the slide slot 29 , and the output end of the motor 33 is transmission-connected to the screw rod 32 via a coupling, so that the motor 33 drives the screw rod 32 to rotate.

[0033] The working principle of this embodiment is as follows: when installing the pipeline dome valve, the staff first installs the dome valve to the specified position of the pipeline, then presses the inner side of the fixed clamp 13 against one side of the pipeline, rotates the movable clamp 14 so that the inner wall of the movable clamp 14 is against the pipeline, and uses the fastening screw 16 to fix the fixed clamp 13 and the movable clamp 14 together, thereby improving the stability of the dome valve when installed on the pipeline. When the dome valve has been used for a period of time and it is necessary to add lubricating oil to the bearing seat 2, the staff turns on the motor 33, and the motor 33 drives the screw 32 to rotate, thereby driving the second slider 30 to move downward in the slide groove 29, and through the transmission of the L-shaped plate 31, drives the first slider 26 to move downward in the oil storage tank 25, so that the lubricating oil in the oil storage barrel 24 enters the bearing seat 2 from the oil passage 28 through the oil filling hole 3, thereby achieving lubrication of the bearing seat 2.

[0034] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A pipeline dome valve, comprising a dome valve housing (1), characterized in that: The dome valve housing (1) is provided with bearing seats (2) on both sides, and an oil filling hole (3) is provided at the top end of the bearing seats (2). A first rotating shaft (4) and a second rotating shaft (5) are respectively installed in the two bearing seats (2), and the first rotating shaft (4) and the second rotating shaft (5) extend from the outside to the inside of the dome valve housing (1). The first rotating shaft (4) and the second rotating shaft (5) are provided with valve cores (6) at the top ends located inside the dome valve housing (1). A first mounting groove (7) is provided on the circumferential side of the inner wall of the dome valve housing (1) at a position close to the valve core (6), and a rubber sleeve (8) is installed on one side of the first mounting groove (7), and a rubber sleeve (8) is installed on the other side of the first mounting groove (7). An air path (9) is provided, a box body (10) is installed on one side of the dome valve housing (1), a second installation groove (11) is provided on one side of the box body (10), a driving mechanism is installed in the second installation groove (11), connecting rods (12) are installed at the top and bottom ends of the box body (10), a fixing clamp (13) is installed at one end of the connecting rod (12), a movable clamp (14) is installed on one side of the fixing clamp (13) through a hinge, threaded holes (15) are provided at the positions where the fixing clamp (13) and the movable clamp (14) are fitted, a fastening screw (16) is threadedly connected between the two threaded holes (15), and a lubrication mechanism is installed at the top end of the box body (10).

2. The pipeline dome valve according to claim 1, characterized in that: The driving mechanism comprises a transmission rod (17) and a hydraulic rod (18); the transmission rod (17) is rotatably mounted on one side of the box body (10), and the transmission rod (17) is connected to the first rotating shaft (4); a driving ring (19) is mounted on one side of the transmission rod (17) located inside the box body (10), and a pressing block (20) is mounted on one side of the driving ring (19); the hydraulic rod (18) is rotatably mounted on one side of the second mounting groove (11), and an output end of the hydraulic rod (18) is connected to the driving ring (19).

3. The pipeline dome valve according to claim 2, characterized in that: A control valve (21) is installed at the bottom end of the second installation groove (11) at a position close to the pressing block (20), an air intake pipe (22) is installed at the bottom end of the control valve (21), and the air intake pipe (22) is connected to the air path (9).

4. The pipeline dome valve according to claim 1, characterized in that: The lubricating mechanism comprises a mounting seat (23), the mounting seat (23) being mounted on the top of the housing (10), an oil storage barrel (24) being mounted on the top of the mounting seat (23), an oil storage tank (25) being provided on the top of the oil storage barrel (24), a first slider (26) being slidably mounted in the oil storage tank (25), a sealing strip (27) being mounted on the bottom of the peripheral side of the first slider (26), an oil passage (28) being mounted on the bottom of the oil storage barrel (24), and the oil passage (28) being connected to the oil filling hole (3) at the top of the bearing seat (2), a slide groove (29) being provided on one side of the mounting seat (23), a second slider (30) being slidably mounted in the slide groove (29), an L-shaped plate (31) being mounted on one side of the second slider (30), and the bottom end of the L-shaped plate (31) being connected to the top of the first slider (26).

5. The pipeline dome valve according to claim 4, characterized in that: A screw rod (32) is rotatably installed in the slide groove (29), and the screw rod (32) passes through the upper and lower ends of the second sliding block (30) and is threadedly connected to the second sliding block (30).

6. The pipeline dome valve according to claim 4, characterized in that: A motor (33) is installed at the bottom end of the slide groove (29), and the output end of the motor (33) is transmission-connected to the screw rod (32) via a coupling.

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