Speed regulating valve structure for PGTVD coating

Abstract

The invention discloses a speed regulating valve structure for PGTVD coating, relates to the technical field of vacuum coating equipment, and adopts the technical scheme that the speed regulating valve structure comprises a valve body, a shell is arranged at the bottom of the valve body, and two supporting plates are fixedly connected between the shell and the valve body; the valve plate is arranged in the valve body, the valve plate is sleeved with a rubber ring, the rubber ring is fixedly connected to the interior of the valve body, a valve rod is fixedly embedded in the valve plate, and the valve rod penetrates through the valve body and the rubber ring; the anti-leakage flow meter has the beneficial effects that the anti-leakage assembly is designed, when the flow meter is pulled out of the shell, a toothed plate moves to enable a first gear and a second rotating shaft to rotate, then a first rotating shaft and a ball core can rotate under the action of a chain, in this way, when the flow meter is pulled out, the ball core can rotate by 90 degrees, and the flow meter is pulled out of the shell. In this way, the shell can be blocked, fluid leakage can be avoided, the valve does not need to be closed when the flowmeter is overhauled, and fluid leakage cannot occur even if the valve is directly detached.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum coating equipment, in particular to a speed regulating valve structure for PGTVD coating. BACKGROUND

[0002] PGTVD refers to Pressurize Gas Transport Vectored Deposition, which means that the vaporized coating material is pressurized to increase the flow speed of the coating material, thereby increasing the deposition speed. Through pressurized gas phase transmission, the coating material can be deposited on the substrate surface with high quality and high uniformity. During PGTVD coating, a speed regulating valve is also used to control the flow speed of the coating material in the pipeline. When the speed regulating valve is in use, a flowmeter is installed on the valve to detect the flow speed of the coating material. However, the existing speed regulating valve does not have a leak-proof function. When the flowmeter is damaged and needs to be repaired, the valve needs to be closed and then disassembled, which affects the progress of the coating work. Therefore, improvement is needed. Therefore, it is necessary to invent a speed regulating valve structure for PGTVD coating. SUMMARY

[0003] Therefore, the present application provides a speed regulating valve structure for PGTVD coating to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a speed regulating valve structure for PGTVD coating, comprising: a valve body, the valve body is provided with an outer shell at the bottom, and two supporting plates are fixedly connected between the outer shell and the valve body; a valve plate, which is arranged inside the valve body, is provided with a rubber ring outside, and the rubber ring is fixedly connected inside the valve body, a valve rod is fixedly embedded on the valve plate, and the valve rod penetrates the valve body and the rubber ring; a housing is fixedly embedded on the front side of the valve body, the rear side of the housing is open, a through hole is formed on the front side of the housing, a flowmeter is arranged on the front side of the housing, the detection end of the flowmeter penetrates the through hole and the housing and extends into the valve body, a sealing rod is fixedly sleeved outside the flowmeter, and the sealing rod penetrates the through hole; a leak-proof assembly is used to prevent fluid leakage when the flowmeter is disassembled; an auxiliary assembly is used to control the opening angle of the valve plate and the movement of the flowmeter.

[0005] Preferably, mounting flanges are fixedly sleeved on the outer sides of both ends of the valve body, the valve rod is connected with the valve body through a sealing bearing, and the valve rod is in movable contact with the rubber ring.

[0006] Preferably, the anti-leakage component includes a sealing seat, which is fixedly connected to the inside of the shell, and a ball core is movably embedded in the sealing seat. The flowmeter and the sealing rod both pass through the ball core. Both sides of the ball core are fixedly connected with a rotating shaft 1, and the two rotating shafts 1 pass through the two sides of the shell respectively. The two rotating shafts 1 pass through the sealing seat and are in movably contact with it. A rotating shaft 2 is embedded in the shell, and the rotating shaft 2 is located on the front side of the sealing seat.

[0007] Preferably, a groove is provided on the sealing rod, a tooth plate is fixedly connected in the groove, a first gear is provided on the external fixed sleeve of the second rotating shaft, a sprocket is provided on the external fixed sleeve of the second rotating shaft and one of the first rotating shafts, a chain is provided on the external sleeves of the two sprockets, the two sprockets are connected by a chain drive, a shielding shell is fixedly connected to one side of the shell, the shielding shell is provided on the outside of the chain, the first rotating shaft is connected to the shell through a sealed bearing, and the second rotating shaft is connected to the shell through a sealed bearing.

[0008] Preferably, the auxiliary component includes a third rotating shaft, which is fixedly sleeved on the outside of the bottom end of the valve stem, and the bottom end of the third rotating shaft passes through the top of the shell and is connected to the inner wall of the bottom of the shell, and the inner wall of the bottom of the shell is fixedly connected to a support rod, and a fourth rotating shaft is embedded in the support rod, and the fourth rotating shaft passes through one side of the shell, and the top and bottom of the shell are fixedly connected to support block one and support block two, and reciprocating screws are embedded in the two support blocks one, and the two reciprocating screws respectively pass through the two support blocks two, and sliding seats are sleeved on the outside of the two reciprocating screws, and the sliding seats are connected to the reciprocating screws through a ball screw pair.

[0009] Preferably, the front sides of the two sliding seats are fixedly connected with push rods, and the two push rods respectively pass through the two supporting blocks and are in sliding contact with them. The front ends of the two push rods are fixedly connected with moving blocks, and the moving blocks are sleeved on the outside of the sealing rod and in movably contact with it. Two card slots are provided on the moving block, and the rear sides of the two card slots are provided with arc grooves. Card blocks are slidably provided in the two arc grooves, and the two card blocks are fixedly connected to the sealing rods. The sliding seat and the push rods are in sliding contact with the shell, and the front side of the shell is fixedly connected with a sealing gasket, and the sealing gasket is in contact with the moving block. A circular ring is sleeved on the outside of the shell, and two connecting blocks are fixedly connected between the circular ring and the valve body.

[0010] Preferably, a gear ring is connected to the ring, and the gear ring is connected to the ring through a bearing. The rear ends of the two reciprocating screws are fixedly sleeved with a second gear, and the two second gears are meshed with the gear ring. The rear end of one of the reciprocating screws is fixedly connected to a bevel gear 1, and the rear side of the bevel gear 1 is provided with a bevel gear 2 meshed with it. The bottom of the bevel gear 2 is fixedly connected to a rotating shaft 5, and the bottom end of the rotating shaft 5 passes through the top of the outer shell and is connected to the inner wall of the bottom of the outer shell. The outer side of the rotating shaft 4 is sleeved with two worms, and the two worms are connected to the rotating shaft 4 through a one-way bearing. The outer sides of the rotating shafts 3 and 5 are fixedly sleeved with worm wheels, and the two worm wheels are meshed with the two worms respectively.

[0011] Preferably, a prism is slidably embedded on the rotating shaft four, one end of the prism is fixedly connected to a knob, one end of the rotating shaft four is fixedly connected to a box body one, a piston one is slidably provided inside the box body one, the other end of the prism extends to the inside of the box body one and is fixedly connected to the piston one, the prism is in sliding contact with the box body one, the top of the outer shell is fixedly embedded with a box body two, the inside of the box body two is slidably provided with a piston two, the bottom end of the piston two is fixedly connected to a moving rod, the moving rod passes through the bottom of the box body two and is in sliding contact with it, a spring is provided inside the box body one, and the spring is fixedly connected to the piston one and the inner wall of the box body one.

[0012] Preferably, a connecting pipe is fixedly embedded on the outer shell and one of the support plates, one end of the connecting pipe is embedded in the box body one and connected to it through a sealed bearing, and the other end of the connecting pipe is fixedly embedded in the box body two, the bottom end of the moving rod is fixedly connected to an outer frame, the outer frame is sleeved on the outside of the rotating shaft four, a rubber block is fixedly connected to the inner wall of the bottom of the outer frame, and a cam is fixedly sleeved on the outside of the rotating shaft four, and the cam is in contact with the rubber block.

[0013] Preferably, the rotating shaft three is connected to the housing through a bearing, the rotating shaft four is connected to the housing through a bearing, the reciprocating screw is connected to the support block one and the support block two through a bearing, and the rotating shaft five is connected to the housing through a bearing.

[0014] The beneficial effects of the present invention are: 1. The present invention is designed with a leakage prevention assembly. When the flow meter is pulled out from the housing, the tooth plate moves to rotate the first gear and the second rotating shaft. Then, under the action of the chain, the first rotating shaft and the ball core rotate. When the flow meter is pulled out again, the ball core rotates 90 degrees, thereby blocking the housing and preventing fluid leakage. In this way, there is no need to close the valve when repairing the flow meter, and direct disassembly will not cause fluid leakage. 2. The present invention designs the prism, box body 1, box body 2, piston 1, piston 2, outer frame, rubber block, cam and other components. When rotating shaft 4, it is necessary to first push the prism to separate the rubber block from the cam to release the restriction on rotating shaft 4. In this way, the device can prevent the rotating shaft 4 from rotating randomly when in use, thereby preventing the valve plate from rotating randomly and the flow meter from moving randomly, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0017] Figure 1 A schematic diagram of the overall structure provided by the present invention; Figure 2 The main cross-sectional view provided by the present invention Figure 1 ; Figure 3 The present invention provides Figure 2 A magnified view of point A in the figure; Figure 4 The main cross-sectional view provided by the present invention Figure 2 ; Figure 5 A side cross-sectional view provided for the present invention; Figure 6 The present invention provides Figure 5 Enlarged view of point B in FIG. Figure 7 A three-dimensional diagram of the components provided by the present invention, including the first and second housings, the connecting pipe, the worm gear, and the worm; Figure 8 A three-dimensional exploded view of the housing and internal components of the housing provided by the present invention; Figure 9 The present invention provides Figure 8 Enlarged view of point C in the figure; Figure 10 The present invention provides Figure 8Rear view of the flow meter, moving block and other components; Figure 11 A schematic diagram of the use status of the present invention; In the figure: 1. valve body; 2. housing; 3. support plate; 4. valve plate; 5. rubber ring; 6. valve stem; 7. housing; 8. flow meter; 9. sealing rod; 10. mounting flange; 11. sealing seat; 12. ball core; 13. rotating shaft 1; 14. rotating shaft 2; 15. tooth plate; 16. first gear; 17. sprocket; 18. chain; 19. shielding shell; 20. rotating shaft 3; 21. support rod; 22. rotating shaft 4; 23. support block 1; 24. support block 2; 25. reciprocating screw; 26. sliding seat; 27. push rod; 28. moving block; 29. ​​card Groove; 30. Arc groove; 31. Block; 32. Ring; 33. Connecting block; 34. Ring gear; 35. Second gear; 36. Bevel gear one; 37. Bevel gear two; 38. Rotating shaft five; 39. Worm; 40. Worm wheel; 41. Prism; 42. Knob; 43. Box one; 44. Piston one; 45. Box two; 46. Piston two; 47. Moving rod; 48. Spring; 49. Connecting pipe; 50. Outer frame; 51. Rubber block; 52. Cam; 53. Sealing gasket; 54. Substrate; 55. Vacuum chamber; 56. Evaporation source; 57. Pipeline. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] Refer to the attached Figure 1 -Attached Figure 11 The present invention provides a PGTVD-coated speed regulating valve structure, comprising: The valve body 1 has a housing 2 at the bottom, and two support plates 3 are fixedly connected between the housing 2 and the valve body 1; The valve plate 4 is arranged inside the valve body 1. A rubber ring 5 is sleeved on the outside of the valve plate 4. The rubber ring 5 is fixedly connected to the inside of the valve body 1. A valve stem 6 is fixedly embedded on the valve plate 4. The valve stem 6 passes through the valve body 1 and the rubber ring 5. The housing 7 is fixedly embedded in the front side of the valve body 1, and the rear side of the housing 7 is set to be open. The front side of the housing 7 is provided with a through hole. The front side of the housing 7 is provided with a flow meter 8. The detection terminal of the flow meter 8 passes through the through hole and the housing 7 and extends into the interior of the valve body 1. The flow meter 8 is fixedly sleeved with a sealing rod 9 on the outside, and the sealing rod 9 passes through the through hole. An anti-leakage component, which is used to prevent fluid leakage when the flow meter 8 is disassembled; Auxiliary components, which are used to control the opening and closing angles of the valve plate 4 and the movement of the flow meter 8.

[0020] The valve body 1 is provided with a mounting flange 10 at both ends thereof. The valve stem 6 is connected to the valve body 1 through a sealing bearing. The valve stem 6 is in active contact with the rubber ring 5. The anti-leakage component includes a sealing seat 11, which is fixedly connected to the inside of the housing 7. A ball core 12 is movably embedded on the sealing seat 11. The flow meter 8 and the sealing rod 9 both pass through the ball core 12. A rotating shaft 13 is fixedly connected to both sides of the ball core 12. The two rotating shafts 13 pass through both sides of the housing 7 respectively. The two rotating shafts 13 both pass through the sealing seat 11 and are in active contact with the same. A rotating shaft 2 14 is embedded on the housing 7. The rotating shaft 2 14 is located on the front side of the sealing seat 11. A groove is provided on the sealing rod 9. A toothed plate 15 is fixedly connected to the groove, a first gear 16 is fixedly sleeved on the outside of the second rotating shaft 14, a sprocket 17 is fixedly sleeved on the outside of the second rotating shaft 14 and one of the first rotating shafts 13, a chain 18 is sleeved on the outside of the two sprockets 17, and the two sprockets 17 are driven and connected by the chain 18. A shielding shell 19 is fixedly connected to one side of the housing 7, and the shielding shell 19 is sleeved on the outside of the chain 18. The first rotating shaft 13 is connected to the housing 7 through a sealed bearing, and the second rotating shaft 14 is connected to the housing 7 through a sealed bearing. In this embodiment, a leakage prevention assembly is designed. When the flow meter 8 is pulled out from the housing 7, the tooth plate 15 moves to rotate the first gear 16 and the second shaft 14. Then, under the action of the chain 18, the first shaft 13 and the ball core 12 can be rotated. When the flow meter 8 is pulled out again, the ball core 12 will rotate ninety degrees, so that the housing 7 can be blocked, thereby preventing fluid leakage. In this way, there is no need to close the valve when repairing the flow meter 8, and direct disassembly will not cause fluid leakage. Among them, in order to achieve the purpose of controlling opening and closing and flow, this device adopts the following technical solutions: the auxiliary component includes a rotating shaft 3 20, the rotating shaft 3 20 is fixedly sleeved on the outside of the bottom end of the valve stem 6, the bottom end of the rotating shaft 3 20 passes through the top of the shell 2 and is connected to the inner wall of the bottom of the shell 2, the inner wall of the bottom of the shell 2 is fixedly connected to a support rod 21, and a rotating shaft 4 22 is embedded in the support rod 21. The rotating shaft 4 22 passes through one side of the shell 2, and the top and bottom of the shell 7 are fixedly connected to a support block 1 23 and a support block 2 24. The two support blocks 1 23 are both embedded with a reciprocating screw 25, and the two reciprocating screws 2 5 respectively penetrates the two support blocks 24, and the two reciprocating screws 25 are both sleeved with sliding seats 26 on the outside. The sliding seats 26 are connected to the reciprocating screws 25 through a ball screw pair. The front sides of the two sliding seats 26 are fixedly connected with push rods 27. The two push rods 27 respectively penetrate the two support blocks 1 23 and slide in contact with them. The front ends of the two push rods 27 are fixedly connected with moving blocks 28. The moving blocks 28 are sleeved on the outside of the sealing rod 9 and move in contact with it. Two card slots 29 are provided on the moving blocks 28. The rear sides of the two card slots 29 are both provided with arc grooves 30. Card blocks 30 are slidably provided in the two arc grooves 30. 1, the two blocks 31 are fixedly connected to the sealing rod 9, the sliding seat 26 and the push rod 27 are in sliding contact with the housing 7, the front side of the housing 7 is fixedly connected with a sealing gasket 53, the sealing gasket 53 is in contact with the moving block 28, the outer shell 7 is provided with a ring 32, the ring 32 and the valve body 1 are fixedly connected with two connecting blocks 33, the ring 32 is connected to the ring 34, the ring 34 and the ring 32 are connected by a bearing, the rear end of the two reciprocating screws 25 are fixedly provided with a second gear 35, the two second gears 35 are meshed with the ring 34, and the rear end of one of the reciprocating screws 25 is fixed A bevel gear 36 is fixedly connected thereto, and a bevel gear 2 37 is provided on the rear side thereof in meshing connection with the bevel gear 1 36. A rotating shaft 5 38 is fixedly connected to the bottom of the bevel gear 2 37. The bottom end of the rotating shaft 5 38 passes through the top of the housing 2 and is connected to the inner wall of the bottom of the housing 2. Two worms 39 are sleeved on the outside of the rotating shaft 4 22. Both worms 39 are connected to the rotating shaft 4 22 through a one-way bearing. A worm gear 40 is fixedly sleeved on the outside of the rotating shaft 3 20 and the rotating shaft 5 38. The two worm gears 40 are respectively meshed with the two worms 39. The auxiliary component can not only control the opening and closing of the valve plate 4 but also control the movement of the flow meter 8. Among them, in order to achieve the purpose of preventing the rotating shaft 42 from rotating at will, the present device adopts the following technical solutions: a prism 41 is slidably embedded on the rotating shaft 42, one end of the prism 41 is fixedly connected to a knob 42, one end of the rotating shaft 42 is fixedly connected to a box body 43, a piston 44 is slidably provided inside the box body 43, the other end of the prism 41 extends into the inside of the box body 43 and is fixedly connected to the piston 44, the prism 41 is in sliding contact with the box body 43, a box body 2 45 is fixedly embedded on the top of the shell 2, a piston 2 46 is slidably provided inside the box body 45, a moving rod 47 is fixedly connected to the bottom of the piston 2 46, the moving rod 47 passes through the bottom of the box body 2 45 and is in sliding contact with it, a spring 48 is provided inside the box body 43, The spring 48 is fixedly connected to the piston 1 44 and the inner wall of the box body 1 43. A connecting pipe 49 is fixedly embedded in the outer shell 2 and one of the support plates 3. One end of the connecting pipe 49 is embedded in the box body 1 43 and connected to it through a sealed bearing. The other end of the connecting pipe 49 is fixedly embedded in the box body 2 45. The bottom end of the movable rod 47 is fixedly connected to the outer frame 50. The outer frame 50 is sleeved on the outside of the rotating shaft 4 22. The inner wall of the bottom of the outer frame 50 is fixedly connected to a rubber block 51. A cam 52 is fixedly sleeved on the outside of the rotating shaft 4 22. The cam 52 is in contact with the rubber block 51. The design of the components such as the box body 1 43, the box body 2 45, the piston 1 44, the piston 2 46, the outer frame 50, the cam 52, and the rubber block 51 can prevent the rotating shaft 4 22 from rotating at will. Among them, in order to achieve the purpose of reducing wear, the present device adopts the following technical solutions: the rotating shaft 3 20 is connected to the housing 2 through a bearing, the rotating shaft 4 22 is connected to the housing 2 through a bearing, the reciprocating screw 25 is connected to the support block 1 23 and the support block 2 24 through a bearing, and the rotating shaft 5 38 is connected to the housing 2 through a bearing. The bearing connection can reduce wear; The present invention further includes a substrate 54 , a vacuum chamber 55 mounted on the substrate 54 , and an evaporation source 56 mounted on the substrate 54 . A pipe 57 is connected between the vacuum chamber 55 and the evaporation source 56 , and the device is mounted on the pipe 57 .

[0021] The use process of the present invention is as follows: With the design of two mounting flanges 10, the device can be mounted on the pipe 57 between the vacuum chamber 55 and the evaporation source 56, as shown in FIG. Figure 11 As shown, after the coating material is vaporized in the evaporation source 56, the material can enter the vacuum chamber 55 through the pipeline 57 and the device, and then be deposited on the material to be plated; When it is necessary to control the flow rate of the coating material in the pipe 57, the knob 42 is pushed to move the prism 41 to the right, so that the piston 1 44 can move to the right. Then, under the action of the connecting pipe 49, the air in the box 1 43 can enter the box 2 45. At the same time, the spring 48 is compressed. After the air enters, the piston 2 46, the moving rod 47 and the outer frame 50 will move downward. The downward movement of the outer frame 50 can move the rubber block 51 downward, and then the rubber block 51 can be separated from the cam 52. Then, the knob 42 is turned forward to rotate the shaft 4 22. Since the two worm gears 39 are connected to the shaft 4 22 through a one-way bearing, when the knob 42 is turned forward, the worm gear 39 on the right rotates, and the worm gear 39 on the left does not rotate. The rotation of the worm gear 39 on the right drives the worm wheel 40 on the right to rotate, which can rotate the shaft 3 20. The rotation of the shaft 3 20 drives the valve stem 6 and the valve plate 4 to rotate, so that the opening and closing angles of the valve plate 4 can be controlled, and then the flow rate of the fluid can be controlled, so that speed regulation can be achieved. After the speed adjustment is completed, the knob 42 is released. Then, under the action of the spring 48, the piston 1 44 and the prism 41 move to the left and reset. Then, the air in the box 2 45 returns to the box 1 43. Then, the piston 2 46, the moving rod 47, the outer frame 50 and the rubber block 51 move upward. Then, the rubber block 51 can contact the cam 52 again, thereby restricting the cam 52, thereby preventing the rotating shaft 4 22 from rotating freely. When the flow meter 8 needs to be repaired, the rubber block 51 is separated from the cam 52 by pushing the knob 42, and then the knob 42 is reversed, so that the left worm 39 rotates and the right worm 39 does not rotate. The rotation of the left worm 39 drives the left worm gear 40 to rotate, so that the rotating shaft five 38 rotates, the bevel gear two 37 rotates, the bevel gear one 36 rotates, the lower reciprocating lead screw 25 rotates, the lower second gear 35 rotates, the ring gear 34 rotates, the upper second gear 35 and the reciprocating lead screw 25 rotate, so that the two reciprocating lead screws 25 rotate at the same time, the two reciprocating lead screws 25 rotate to drive the two sliding seats 26 and the two push rods 27 to move forward, the two push rods 27 move forward to drive the moving block 28 to move forward. Since the two clamping blocks 31 are clamped in the two arc-shaped grooves 30, the two clamping blocks 31 and the flow meter 8 can move forward, and the rear end of the flow meter 8 can move out of the ball core 12 during the movement. When the tooth plate 15 is engaged with the first gear 16, the first gear 16 and the rotating shaft two 14 rotate, the chain 18 rotates, and the two rotating shafts one 13 and the ball core 12 rotate. When the tooth plate 15 is disengaged from the first gear 16, the ball core 12 can rotate by ninety degrees, so that the slot hole on the ball core 12 can change from horizontal to vertical, so as to block the shell 7. Then hold the flow meter 8 and rotate it by ninety degrees, so that the two clamping blocks 31 can be aligned with the two clamping grooves 29, and then the flow meter 8 can be pulled out of the shell 7 and the moving block 28. Since the ball core 12 rotates by ninety degrees to block the shell 7, fluid leakage can be avoided when the flow meter 8 is pulled out, so that the valve does not need to be closed during the repair of the flow meter 8, and fluid leakage will not occur during disassembly. After the repair is completed, the flow meter 8 passes through the moving block 28 and the through hole, so that the two clamping blocks 31 can be inserted into the two clamping grooves 29, and then the flow meter 8 is rotated by ninety degrees, so that the two clamping blocks 31 are clamped in the two arc-shaped grooves 30. Then reverse the knob 42 again, so that the two reciprocating lead screws 25 continue to rotate, and the two sliding seats 26 move forward to the end of the stroke, so that the two sliding seats 26 drive the push rod 27, the moving block 28 and the flow meter 8 to move backward when the two reciprocating lead screws 25 continue to rotate. The rear end of the flow meter 8 can pass through the ball core 12 and enter the valve body 1, and then the flow rate of the fluid can be detected.

[0022] The above are merely preferred embodiments of the present invention. Anyone skilled in the art may modify the present invention using the above-described technical solutions or modify them into equivalent technical solutions. Therefore, any simple modification or equivalent replacement based on the technical solutions of the present invention falls within the scope of protection claimed by the present invention.

Claims

1. A PGTVD-coated speed regulating valve structure, characterized in that: include: A valve body (1), wherein a shell (2) is provided at the bottom of the valve body (1), and two support plates (3) are fixedly connected between the shell (2) and the valve body (1); A valve plate (4) is arranged inside the valve body (1), a rubber ring (5) is sleeved on the outside of the valve plate (4), the rubber ring (5) is fixedly connected to the inside of the valve body (1), a valve stem (6) is fixedly embedded on the valve plate (4), and the valve stem (6) passes through the valve body (1) and the rubber ring (5); A housing (7) is fixedly embedded in the front side of the valve body (1), the rear side of the housing (7) is set to be open, the front side of the housing (7) is provided with a through hole, the front side of the housing (7) is provided with a flow meter (8), the detection end of the flow meter (8) passes through the through hole and the housing (7) and extends into the interior of the valve body (1), the outer fixed sleeve of the flow meter (8) is provided with a sealing rod (9), and the sealing rod (9) passes through the through hole; An anti-leakage component for preventing fluid leakage when the flow meter (8) is disassembled; An auxiliary component is used to control the opening and closing angles of the valve plate (4) and the movement of the flow meter (8).

2. The PGTVD coating speed regulating valve structure according to claim 1, characterized in that: Both ends of the valve body (1) are externally fixed with mounting flanges (10), the valve stem (6) is connected to the valve body (1) via a sealing bearing, and the valve stem (6) is in movable contact with the rubber ring (5).

3. The PGTVD coating speed regulating valve structure according to claim 1, characterized in that: The anti-leakage component includes a sealing seat (11), the sealing seat (11) is fixedly connected to the inside of the shell (7), a ball core (12) is movably embedded in the sealing seat (11), the flow meter (8) and the sealing rod (9) both pass through the ball core (12), and both sides of the ball core (12) are fixedly connected with a rotating shaft (13), the two rotating shafts (13) respectively pass through the two sides of the shell (7), and the two rotating shafts (13) both pass through the sealing seat (11) and are in movably contact with it, and a rotating shaft (14) is embedded in the shell (7), and the rotating shaft (14) is located on the front side of the sealing seat (11).

4. The PGTVD coating speed regulating valve structure according to claim 3, characterized in that: The sealing rod (9) is provided with a groove, in which a tooth plate (15) is fixedly connected. The outer sleeve of the second rotating shaft (14) is provided with a first gear (16). The outer sleeves of the second rotating shaft (14) and one of the first rotating shafts (13) are both fixedly provided with sprockets (17). The outer sleeves of the two sprockets (17) are provided with chains (18). The two sprockets (17) are connected by driving via the chain (18). A shielding shell (19) is fixedly connected to one side of the housing (7), and the shielding shell (19) is sleeved on the outside of the chain (18). The first rotating shaft (13) and the housing (7) are connected via a sealed bearing, and the second rotating shaft (14) and the housing (7) are connected via a sealed bearing.

5. The PGTVD coating speed regulating valve structure according to claim 1, characterized in that: The auxiliary component includes a rotating shaft three (20), the rotating shaft three (20) is fixedly sleeved on the outside of the bottom end of the valve stem (6), the bottom end of the rotating shaft three (20) passes through the top of the shell (2) and is connected to the inner wall of the bottom of the shell (2), the inner wall of the bottom of the shell (2) is fixedly connected to a support rod (21), the supporting rod (21) is embedded with a rotating shaft four (22), the rotating shaft four (22) passes through one side of the shell (2), the top and bottom of the shell (7) are fixedly connected with a support block one (23) and a support block two (24), the two support blocks one (23) are embedded with a reciprocating screw (25), the two reciprocating screws (25) respectively pass through the two support blocks two (24), the two reciprocating screws (25) are sleeved with a sliding seat (26) on the outside, and the sliding seat (26) is connected to the reciprocating screw (25) through a ball screw pair.

6. The PGTVD coating speed regulating valve structure according to claim 5, characterized in that: The front sides of the two sliding seats (26) are fixedly connected with push rods (27), and the two push rods (27) respectively penetrate the two support blocks (23) and are in sliding contact with them. The front ends of the two push rods (27) are fixedly connected with moving blocks (28), and the moving blocks (28) are sleeved on the outside of the sealing rod (9) and are in movably contact with it. The moving blocks (28) are provided with two card slots (29), and the rear sides of the two card slots (29) are provided with arc grooves (30). The two arc grooves (30) are fixedly connected to the front ends of the two push rods (27). A clamping block (31) is slidably provided in each groove (30), and both of the clamping blocks (31) are fixedly connected to the sealing rod (9). The sliding seat (26) and the push rod (27) are in sliding contact with the housing (7). A sealing gasket (53) is fixedly connected to the front side of the housing (7), and the sealing gasket (53) is in contact with the moving block (28). A circular ring (32) is provided on the outside of the housing (7), and two connecting blocks (33) are fixedly connected between the circular ring (32) and the valve body (1).

7. The PGTVD coating speed regulating valve structure according to claim 6, characterized in that: The ring (32) is connected to a gear ring (34), and the gear ring (34) is connected to the ring (32) through a bearing. The rear ends of the two reciprocating screws (25) are fixedly sleeved with a second gear (35), and the two second gears (35) are meshed with the gear ring (34). The rear end of one of the reciprocating screws (25) is fixedly connected to a bevel gear 1 (36), and the rear side of the bevel gear 1 (36) is provided with a bevel gear 2 (37) meshed with it. The bottom of (37) is fixedly connected with a rotating shaft five (38), the bottom end of the rotating shaft five (38) passes through the top of the shell (2) and is connected to the inner wall of the bottom of the shell (2), the outer sleeve of the rotating shaft four (22) is provided with two worms (39), and the two worms (39) are connected to the rotating shaft four (22) through a one-way bearing, and the outer sleeves of the rotating shaft three (20) and the rotating shaft five (38) are fixedly provided with worm wheels (40), and the two worm wheels (40) are respectively engaged with the two worms (39).

8. The PGTVD coating speed regulating valve structure according to claim 7, characterized in that: A prism (41) is slidably embedded on the rotating shaft (22), one end of the prism (41) is fixedly connected to a knob (42), one end of the rotating shaft (22) is fixedly connected to a box body (43), a piston (44) is slidably provided inside the box body (43), the other end of the prism (41) extends into the inside of the box body (43) and is fixedly connected to the piston (44), the prism (41) is in sliding contact with the box body (43), a box body (45) is fixedly embedded on the top of the housing (2), a piston (46) is slidably provided inside the box body (45), a moving rod (47) is fixedly connected to the bottom of the box body (45) and is in sliding contact with it, a spring (48) is provided inside the box body (43), and the spring (48) is fixedly connected to the piston (44) and the inner wall of the box body (43).

9. The PGTVD coating speed regulating valve structure according to claim 8, characterized in that: A connecting pipe (49) is fixedly embedded in the housing (2) and one of the support plates (3). One end of the connecting pipe (49) is embedded in the box body (43) and connected to the box body (43) through a sealing bearing. The other end of the connecting pipe (49) is fixedly embedded in the box body (45). The bottom end of the moving rod (47) is fixedly connected to an outer frame (50). The outer frame (50) is sleeved on the outside of the rotating shaft (22). A rubber block (51) is fixedly connected to the inner wall of the bottom of the outer frame (50). A cam (52) is fixedly sleeved on the outside of the rotating shaft (22). The cam (52) contacts the rubber block (51).

10. The PGTVD coating speed regulating valve structure according to claim 9, characterized in that: The rotating shaft three (20) is connected to the housing (2) through a bearing, the rotating shaft four (22) is connected to the housing (2) through a bearing, the reciprocating screw (25) is connected to the support block one (23) and the support block two (24) through a bearing, and the rotating shaft five (38) is connected to the housing (2) through a bearing.

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