Gas-liquid separation device, gas-liquid separation method and dental electric suction machine

Abstract

The present application relates to separator equipment technical field, especially relates to a kind of gas-liquid separation device, comprising: rack, the rack is connected with multiple separators, the input end of separator is connected with the output shaft of motor on rack, suction pipe and drain pipe are connected with the two sides of separator respectively, multiple air pumps are connected on rack, each air pump is connected with one separator by one suction pipe, one-way valve is connected on suction pipe, multiple separators are connected with suction pipe on one side in device, the other side of separator is connected with air pump by suction pipe, one-way valve set on suction pipe can make air pump in shutdown state not enter moisture, ensure that it does not appear failure when next time working.

Description

Technical Field

[0001] This invention relates to the field of separator equipment technology, and in particular to a gas-liquid separation device, a gas-liquid separation method, and a dental electric suction machine. Background Technology

[0002] Gas-liquid separators primarily utilize the differences in physical properties between gases and liquids, such as density and inertia, to separate them within the equipment. When a gas-liquid mixture flows through the separator, due to the different motion characteristics of the gas and liquid, the liquid separates from the gas under specific forces and accumulates, ultimately discharging the gas and liquid separately.

[0003] However, in the existing technology, when multiple gas-liquid separation devices are operating in parallel, because some separators are in a stopped state, the flowing gas-liquid mixture can easily enter the stopped separators when the other separators are working, causing damage to them. Summary of the Invention

[0004] This invention provides a gas-liquid separation device, a gas-liquid separation method, and a dental electric suction machine to address the issues raised in the background art.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a gas-liquid separation device, comprising: a frame, wherein multiple separators are connected to the frame, the input end of the separator is connected to the output shaft of a motor on the frame, a suction pipe and a drain pipe are respectively connected to both sides of the separator, multiple air pumps are connected to the frame, each air pump is connected to a separator through an air suction pipe, and a one-way valve is connected to the air suction pipe.

[0006] Preferably, the separator has a suction port and a drain port on its outer shell, the suction port is connected to a suction pipe, the drain port is connected to a drain pipe, and the end of a suction pipe is connected to the inner wall of the outer shell.

[0007] Preferably, a second one-way valve is connected to the side wall of the outer casing, and the second one-way valve is disposed between the suction port and the drain port.

[0008] Preferably, a rotating shaft is rotatably connected inside the outer casing. The end of the rotating shaft that extends to the top surface of the outer casing is connected to the output shaft of the motor. The side wall of the rotating shaft is connected to the ends of multiple centrifugal plates. The other end of the centrifugal plates is connected to the inner wall of the cyclone separator. The bottom end of the rotating shaft is connected to a lower baffle plate, which is placed inside the outer casing. Multiple centrifugal blades are arranged in a circumferential array on the lower baffle plate.

[0009] Preferably, the top of the centrifugal disc is positioned below the cyclone separator tube, and the centrifugal disc is located between the side wall of the cyclone separator tube and the inner wall of the outer shell.

[0010] Preferably, the inner wall of the outer shell is connected to the side wall of the spiral water-blocking ring, the inner wall of the spiral water-blocking ring is rotatably sealed with the cyclone separator, the inner wall of the outer shell, the top surface of the spiral water-blocking ring and the cyclone separator form a dry cavity, the end of the suction pipe is set towards the dry cavity, the inner wall of the outer shell, the bottom surface of the spiral water-blocking ring, the cyclone separator and the lower water-blocking plate form a wet cavity, the suction port is located above the drain port, and the spiral water-blocking ring spirals from the suction port to the drain port.

[0011] Preferably, a gas-liquid separation method, applicable to any of the gas-liquid separation devices described above, includes the following steps:

[0012] Start the motor and air pump; the motor's output shaft drives the rotating shaft to rotate.

[0013] The rotation of the shaft drives the centrifugal plates, cyclone separator, lower baffle plate, and centrifugal discs to rotate.

[0014] After the air pump is started, it generates negative pressure inside the casing, which in turn draws the gas-liquid mixture in the suction port into the casing.

[0015] After the gas-liquid mixture is drawn into the shell, the liquid flows out from the drain port along the inner wall of the shell under the guidance of the spiral water-blocking ring.

[0016] As the liquid flows out of the drain along the inner wall of the outer shell, the gas passes through the centrifuge plate and centrifuge disc and is discharged through the exhaust pipe.

[0017] Preferably, a dental electric suction machine, applicable to the gas-liquid separation device described in any of the above claims, comprises: a mounting housing; the suction tube is connected to the ends of two connecting tubes, each connecting tube being fixed inside the mounting housing; each of the two connecting tubes is connected to a one-way valve; the other end of the connecting tube is connected to the end of a filter tank; the other end of the filter tank is connected to the end of a transfer tube; the other end of the transfer tube is connected to one output end of a three-way reversing valve; the input end of the three-way reversing valve is connected to the suction tube via a flexible hose; each filter tank is connected to a filter screen; the top of the filter tank is connected to the bottom end of a liquid guide tube; the top end of the liquid guide tube is connected to the bottom of a liquid storage tank; the liquid storage tank contains disinfectant; the liquid guide tube is positioned between the connecting tube and the filter screen; and a switch assembly is connected to the liquid guide tube.

[0018] Preferably, the bottom of the filter tank is connected to the top of the drain pipe, the drain pipe is connected to the switch assembly, the bottom end of the drain pipe is set to face the top opening of the collection box inside the mounting housing, and the drain pipe and the guide pipe are respectively set on both sides of the filter screen.

[0019] Preferably, the switching assembly includes: a ball valve, a ball valve rotatably and sealed within the liquid guide tube, the through hole of the ball valve being perpendicular to the axis of the liquid guide tube, a second rotating shaft connected to the side wall of the ball valve rotatably and sealed with the liquid guide tube, a gear being connected to the end of the second rotating shaft extending out of the side wall of the liquid guide tube, a second ball valve rotatably and sealed within the drain tube, the through hole of the second ball valve being perpendicular to the axis of the drain tube, a third rotating shaft connected to the side wall of the second ball valve rotatably and sealed with the drain tube, a second gear being connected to the end of the third rotating shaft extending out of the side wall of the drain tube, and both the gear and the second gear being connected to the drive assembly.

[0020] The beneficial effects of this invention are as follows:

[0021] In the solution of this invention:

[0022] The device is equipped with multiple separators, one side of which is connected to the suction pipe, and the other side of the separator is connected to the air pump through the air extraction pipe. The one-way valve on the air extraction pipe can prevent water from entering the air pump when it is stopped, ensuring that it will not malfunction when it is used again. Attached image description:

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is a schematic diagram showing the connection relationship between the air extraction pipe and the one-way valve of the present invention;

[0025] Figure 3 This is a schematic diagram of the outer shell structure of the present invention;

[0026] Figure 4 This is a cross-sectional view of the outer casing of the present invention;

[0027] Figure 5 This is a schematic diagram of the mounting shell structure of the present invention;

[0028] Figure 6 This is a cross-sectional view of the mounting shell of the present invention;

[0029] Figure 7 This is a schematic diagram of the filter structure of the present invention;

[0030] Figure 8 This is a cross-sectional view of the filter tank of the present invention;

[0031] Figure 9 This is a schematic diagram showing the connection relationship between the rack and the connecting rod of the present invention;

[0032] Figure 10 This is a cross-sectional view of the connecting pipe of the present invention;

[0033] Figure 11 This is a cross-sectional view of the pressure plate of the present invention;

[0034] Figure 12This is a schematic diagram showing the relative positional relationship between the filter screen and the vibrating cam of the present invention;

[0035] Figure 13 This is a schematic diagram of the three mounting positions of the spring of the present invention;

[0036] Figure 14 This is a schematic diagram of the installation position of the second spring of the present invention;

[0037] Figure 15 This is a schematic diagram of the movable plate structure of the present invention;

[0038] Figure 16 This is a schematic diagram showing the connection relationship between the movable plate and the second connecting rod of the present invention;

[0039] Figure 17 This is a schematic diagram showing the relative positional relationship between gear three and locking plate of the present invention.

[0040] The components include: 1. Frame; 2. Separator; 3. Motor; 4. Suction pipe; 5. Drain pipe; 6. Air pump; 7. Suction pipe; 8. One-way valve; 9. Housing; 10. Suction port; 11. Drain port; 12. One-way valve II; 13. Rotary shaft; 14. Centrifugal plate; 15. Cyclone separator pipe; 16. Lower baffle plate; 17. Centrifugal disc; 18. Spiral baffle ring; 19. Mounting housing; 20. Connecting pipe; 21. Filter tank; 22. Transfer pipe; 23. Three-way reversing valve; 24. Flexible hose; 25. Filter screen; 26. Liquid guide pipe; 27. Storage tank; 28. Drain pipe; 29. ​​Collection box; 30. Ball valve; 31. Through hole. 1. Rotating shaft 2 32. Gear 33. Ball valve 2 34. Through hole 2 35. Rotating shaft 3 36. Gear 2 37. Rack 38. Connecting rod 39. Connecting rod 2 40. Drive rod 41. Spring 42. Pressure plate 43. Chamfer 44. Rotating shaft 45. Vibrating cam 46. Gear 3 47. Push plate 48. Chamfer 2 49. Moving plate 50. Spring 2 51. Spring 3 52. Connecting rod 2 53. Push plate 2 54. Gear 4 55. Motor 2 56. Connecting rod 3 57. Locking rod 58. Spring 4 59. Locking plate 60. Chamfer 3 61. Detailed Implementation

[0041] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0042] Example 1: Reference Figures 1-17 A gas-liquid separation device includes: a frame 1, on which multiple separators 2 are connected, the input end of the separator 2 is connected to the output shaft of a motor 3 on the frame 1, a suction pipe 4 and a drain pipe 5 are respectively connected to both sides of the separator 2, multiple air pumps 6 are connected to the frame 1, each air pump 6 is connected to a separator 2 through an air extraction pipe 7, and a one-way valve 8 is connected to the air extraction pipe 7.

[0043] The principle behind the above scheme is as follows:

[0044] When drying air containing moisture, the air pump 6 and motor 3 are started simultaneously. The suction pipe 7 provides negative pressure to the separator 2. The mixed gas enters the interior of the separator 2 through the suction pipe 4. After separation by the separator 2, the moisture is discharged through the drain pipe 5. The dry air enters the air pump 6 through the one-way valve 8 on the suction pipe 7 and is discharged through the other end of the air pump 6. Since multiple separators 2 are connected to the frame 1, the device will select to start one or more separators 2 according to the actual situation during operation so that there is sufficient negative pressure to draw in the mixed gas. When there is a separator 2 in the device that does not need to be started, the one-way valve 8 on the suction pipe 7 connected to the separator 2 is in the closed state. Therefore, moisture will not enter the air pump 6 connected to the separator 2 that is not in operation.

[0045] The beneficial effects of the above scheme are as follows:

[0046] The device is equipped with multiple separators 2, one side of which is connected to the suction pipe 4. The other side of the separator 2 is connected to the air pump 6 through the air extraction pipe 7. The one-way valve 8 installed on the air extraction pipe 7 can prevent water from entering the air pump 6 when it is in the off state, ensuring that it will not malfunction when it is used again.

[0047] Example 2: Reference Figures 1-17 The separator 2 has a suction port 10 and a drain port 11 on its outer shell 9. The suction port 10 is connected to the suction pipe 4, and the drain port 11 is connected to the drain pipe 5. The end of the air extraction pipe 7 is connected to the inner wall of the outer shell 9.

[0048] The principles and beneficial effects of the above scheme are as follows:

[0049] The suction port 10 is connected to the suction pipe 4, and the drain port 11 is connected to the drain pipe 5, which can reduce the difficulty of connecting multiple separators 2 in the device.

[0050] The inner wall of the outer casing 9 is connected to the air extraction pipe 7, which facilitates the generation of negative pressure inside the separator 2 after the air pump 6 is started, thereby drawing in the gas.

[0051] Example 3: Reference Figures 1-17 The outer casing 9 has a one-way valve 2 12 connected to its side wall, and the one-way valve 2 12 is located between the suction port 10 and the drain port 11.

[0052] The principles and beneficial effects of the above scheme are as follows:

[0053] During operation, the separator 2 has a one-way valve 12 on its outer shell 9. When the air pump 6 connected to it generates negative pressure inside the outer shell 9, the one-way valve 12 is closed. When the negative pressure generated by the air pump 6 inside the outer shell 9 is eliminated, the one-way valve 12 opens. At this time, excess moisture inside the outer shell 9 can be discharged through the one-way valve 12. The connection between the outer shell 9 and the external environment is conducive to the rapid drying of the inside of the outer shell 9, preventing the long-term retention of moisture inside from causing corrosion of the outer shell 9 or other internal components, and preventing the growth of microorganisms inside the outer shell 9.

[0054] Example 4: Reference Figures 1-17 A rotating shaft 13 is rotatably connected inside the outer shell 9. The end of the rotating shaft 13 that extends through the top surface of the outer shell 9 is connected to the output shaft of the motor 3. The side wall of the rotating shaft 13 is connected to the ends of multiple centrifugal plates 14. The other end of the centrifugal plates 14 is connected to the inner wall of the cyclone separator 15. The bottom end of the rotating shaft 13 is connected to a lower baffle plate 16. The lower baffle plate 16 is placed inside the outer shell 9. Multiple centrifugal blades 17 are arranged in a circumferential array on the lower baffle plate 16.

[0055] The top of the centrifugal disc 17 is positioned below the cyclone separator 15, and the centrifugal disc 17 is located between the side wall of the cyclone separator 15 and the inner wall of the outer shell 9.

[0056] The inner wall of the outer shell 9 is connected to the side wall of the spiral water-blocking ring 18. The inner wall of the spiral water-blocking ring 18 is rotatably sealed with the cyclone separator 15. The inner wall of the outer shell 9, the top surface of the spiral water-blocking ring 18, and the cyclone separator 15 form a dry chamber. The end of the suction pipe 7 is set towards the dry chamber. The inner wall of the outer shell 9, the bottom surface of the spiral water-blocking ring 18, the cyclone separator 15, and the lower water-blocking plate 16 form a wet chamber. The suction port 10 is located above the drain port 11. The spiral water-blocking ring 18 spirals from the suction port 10 to the drain port 11.

[0057] The bottom wall of the outer casing 9 has a screw hole, which is located between the lower baffle plate 16 and the inner wall of the outer casing 9. A drain nut is connected to the screw hole by a thread.

[0058] The principles and beneficial effects of the above scheme are as follows:

[0059] After the motor 3 starts, the shaft 13 rotates, and the centrifugal plate 14, the baffle plate 16, and the centrifugal blade 17 rotate synchronously. Under the negative pressure generated by the air pump 6, the mixed gas inside the outer shell 9 flows spirally downward along the bottom surface of the spiral baffle ring 18. At this time, the inner wall of the outer shell 9, the top surface of the spiral baffle ring 18, and the cyclone separator 15 form a dry chamber. The end of the suction pipe 7 is set towards the dry chamber. The inner wall of the outer shell 9, the bottom surface of the spiral baffle ring 18, the cyclone separator 15, and the lower baffle plate 16 form a wet chamber. After the mixed gas flows to the centrifugal blade 17 in the wet chamber, the water is separated from the air under its centrifugal action and enters the drain outlet 11. The dry air after the water is separated enters the dry chamber of the outer shell 9 through the centrifugal blade 17, the centrifugal plate 14, and the cyclone separator 15 under the negative pressure, and is discharged through the suction pipe 7. The device improves the separation efficiency of water and air in the mixed gas.

[0060] The inclusion of a drain nut further reduces the difficulty of draining excess water from the outer casing 9 after shutdown, improves the ease of use of the device, and facilitates the inspection of the interior of the outer casing 9.

[0061] Example 5: Reference Figures 1-17 A gas-liquid separation method, applicable to any of the gas-liquid separation devices described above, includes the following steps:

[0062] Start motor 3 and air pump 6; the output shaft of motor 3 drives shaft 13 to rotate.

[0063] The rotation of the rotating shaft 13 drives the centrifugal plate 14, the cyclone separator 15, the lower baffle plate 16, and the centrifugal disc 17 to rotate;

[0064] After the air pump 6 is started, it generates a negative pressure inside the housing 9, which in turn draws the gas-liquid mixture in the suction port 10 into the housing 9.

[0065] After the gas-liquid mixture is drawn into the outer casing 9, the liquid flows out from the drain outlet 11 along the inner wall of the outer casing 9 under the guidance of the spiral water-blocking ring 18.

[0066] As the liquid flows out of the drain outlet 11 along the inner wall of the outer casing 9, the gas is discharged through the exhaust pipe 7 after passing through the centrifugal plate 14 and centrifugal vane 17.

[0067] The principles and beneficial effects of the above scheme are as follows:

[0068] The motor 3 and the air pump 6 start simultaneously, generating negative pressure inside the outer casing 9. The rotating shaft 13 drives the centrifugal plate 14, cyclone separator 15, lower baffle plate 16, and centrifugal blades 17 to rotate. After the gas-liquid mixture is drawn into the outer casing 9, under the guidance of the spiral baffle ring 18 and the action of the centrifugal blades 17, the liquid flows out from the drain port 11 along the inner wall of the outer casing 9. The dry air enters the air pump 6 through the air extraction pipe 7 and is finally discharged to the outside of the device, which greatly improves the efficiency of the device for air drying and reduces the size of the device.

[0069] Example 6: Reference Figures 1-17 A dental electric suction machine, applicable to the gas-liquid separation device described in any of the above claims, includes: a mounting housing 19; a suction tube 4 connected to the ends of two connecting tubes 20, each connecting tube 20 being fixed inside the mounting housing 19; each of the two connecting tubes 20 being connected to a one-way valve; the other end of the connecting tube 20 being connected to the end of a filter tank 21; the other end of the filter tank 21 being connected to the end of a transfer tube 22; the other end of the transfer tube 22 being connected to one output end of a three-way reversing valve 23; the input end of the three-way reversing valve 23 being connected to a suction assembly via a hose 24; each filter tank 21 being connected to a filter screen 25; the top of the filter tank 21 being connected to the bottom end of a liquid guide tube 26; the top end of the liquid guide tube 26 being connected to the bottom of a liquid storage tank 27; the liquid storage tank 27 containing disinfectant; the liquid guide tube 26 being positioned between the connecting tube 20 and the filter screen 25; and a switch assembly being connected to the liquid guide tube 26.

[0070] The principles and beneficial effects of the above scheme are as follows:

[0071] After the air pump 6 is started, a negative pressure is generated in the connecting pipe 20, which in turn generates a negative pressure in the hose 24 and the suction assembly. When the suction assembly suctions the oral cavity, the patient's saliva and air will enter the hose 24, and enter a transfer pipe 22 through the three-way reversing valve 23. The suctioned impurities are filtered on the filter screen 25 in the filter canister 21. The air with impurities removed enters the suction pipe 4 through the one-way valve three in the connecting pipe 20 to ensure that impurities in the suctioned mixture do not enter the separator 2 and the air pump 6 and cause damage to the device, and to reduce the difficulty of cleaning, maintenance and disinfection of the two.

[0072] When one filter 25 reaches its filtration limit, the three-way reversing valve 23 is activated to open the other adapter pipe 22, thereby using the other filter 25 to filter impurities. The device is equipped with two filters 25 installed in a filter canister 21. When the filtration effect of one filter 25 reaches its limit, the user can control the other filter canister 21 to be opened by changing the direction of the three-way reversing valve 23, and use the filter 25 inside to filter the air, ensuring the continuity of the device's suction operation.

[0073] When the filter screen 25 reaches its filtration limit, it needs to be cleaned. At this time, the switch assembly is opened, and the disinfectant in the storage tank 27 enters the filter tank 21 through a liquid guide pipe 26. Since the liquid guide pipe 26 is located between the connecting pipe 20 and the filter screen 25, the disinfectant flowing into the filter tank 21 can backwash the filter screen 25. At this time, not only can the filter screen 25 be disinfected, but also impurities on the filter screen 25 can be cleaned, which improves the work efficiency of the device during maintenance. The simultaneous cleaning and disinfection shortens the maintenance time of the filter screen 25. Therefore, the device will not experience downtime due to maintenance when used for a long time.

[0074] The volume of the liquid storage tank 27 can be selected based on the actual situation. When a thorough cleaning of the filter tank 21 is required, a larger volume liquid storage tank 27 can be selected.

[0075] Example 7: Reference Figures 1-17 The bottom of the filter tank 21 is connected to the top of the drain pipe 28, which is connected to the switch assembly. The bottom of the drain pipe 28 is set to open towards the top of the collection box 29 inside the mounting shell 19. The drain pipe 28 and the guide pipe 26 are respectively set on both sides of the filter screen 25.

[0076] The switching assembly includes: a ball valve 30, which is rotatably and sealed within the liquid guide tube 26. The through hole 31 of the ball valve 30 is perpendicular to the axis of the liquid guide tube 26. A rotating shaft 32 connected to the side wall of the ball valve 30 is rotatably and sealed with the liquid guide tube 26. A gear 33 is connected to the end of the rotating shaft 32 that extends out of the side wall of the liquid guide tube 26. A ball valve 34 is rotatably and sealed within the drain tube 28. The through hole 35 of the ball valve 34 is perpendicular to the axis of the drain tube 28. A rotating shaft 36 connected to the side wall of the ball valve 34 is rotatably and sealed with the drain tube 28. A gear 37 is connected to the end of the rotating shaft 36 that extends out of the side wall of the drain tube 28. Both gear 33 and gear 37 are connected to the drive assembly.

[0077] The principles and beneficial effects of the above scheme are as follows:

[0078] When a filter screen 25 is being cleaned, to prevent excessive pressure inside the filter tank 21 containing the filter screen 25, a drain pipe 28 is connected to the bottom of the filter tank 21. The cleaned disinfectant is discharged through the through hole 35 of the ball valve 24 inside the drain pipe 28, which also prevents impurities from remaining inside the filter tank 21 after disinfection. When the liquid guide pipe 26 connected to the filter tank 21 supplies disinfectant, the disinfectant enters the filter tank 21 from the storage tank 27 through the through hole 31 of the ball valve 30. The ball valve 30 and the ball valve 30 installed on the same filter tank 21 are connected to the filter tank 21. The ball valve 2 34 has through holes 31 and 35 respectively. When the disinfectant needs to flow, the drive assembly is activated to drive the gear 33 and the rotating gear 2 37 to rotate. The gear 33 drives the rotating shaft 2 32 and the ball valve 30 to rotate. The gear 2 37 drives the rotating shaft 36 and the ball valve 2 34 to rotate. The through holes 31 and 35 are connected to the liquid guide pipe 26 and the liquid drain pipe 28 respectively, so that the disinfectant can be discharged. This avoids the growth of microorganisms in the filter tank 21 and the clogging of the filter screen 25, and improves the coordination of the mechanism during operation.

[0079] When it is necessary to seal the filter tank 21, simply activate the drive assembly to drive gear 33 and rotating gear 37 to rotate in opposite directions. Gear 33 drives rotating shaft 32 and ball valve 30 to rotate in opposite directions, and gear 37 drives rotating shaft 36 and ball valve 34 to rotate in opposite directions. Through hole 31 and through hole 35 respectively end the connection between the liquid guide pipe 26 and the liquid drain pipe 28. The drive assembly improves the efficiency of switching between the cleaning and sealing states of the filter tank 21. When the drive assembly is working, the other filter tank 21 is in working state, that is, the other ball valve 30 and ball valve 34 seal the top and bottom of the filter tank 21. Therefore, the other filter tank 21 will not experience a decrease in sealing performance leading to pressure loss.

[0080] The disinfectant and impurities after cleaning are collected in the collection box 29 for unified processing, which facilitates unified treatment after the device is shut down.

[0081] Example 8: Reference Figures 1-17 The drive assembly includes a rack 38, wherein the longitudinally adjacent gears 33 and 37 are respectively meshed with a rack 38, the rack 38 is slidably connected to the inner wall of the mounting shell 19, two longitudinally adjacent racks 38 are connected by a connecting rod 39, and the racks 38 spaced apart from a filter tank 21 are connected to the end of a drive rod 41 by a connecting rod 40, the two connecting rods 40 are arranged in parallel, the end side wall of the drive rod 41 is connected to the connecting pipe 20 of another filter tank 21 by a spring 42, the drive rod 41 is slidably connected to the connecting pipe 20, and the end of the drive rod 41 placed inside the connecting pipe 20 is connected to the end of a pressure plate 43, the end face of the pressure plate 43 facing the filter tank 21 is provided with a chamfer 44.

[0082] The principles and beneficial effects of the above scheme are as follows:

[0083] When the device begins to suction the oral cavity, the three-way reversing valve 23 opens one adapter pipe 22 and closes the other adapter pipe 22. The open adapter pipe 22 introduces air into the filter canister 21, which is in the filtering state. Air then flows in the connecting pipe 20 connected to it. At this time, the chamfer 44 on the pressure plate 43 is subjected to the pressure of the airflow, which drives the drive rod 41 to move towards the middle of the mounting shell 19. Simultaneously, the connecting rod 40 moves, and the spring 42 is stretched. The movement of the connecting rod 40 drives the rack 38 adjacent to the other filter canister 21 to move. The rack 38 drives the longitudinal movement through the connecting rod 39. The adjacent racks 38 move synchronously, which in turn causes the second gear 37 to rotate. The second gear 37 drives the third shaft 36 to rotate. After the second ball valve 34 rotates, the second through hole 35 connects with the drain pipe 28. The other longitudinally adjacent rack 38 drives the gear 33 that meshes with it to rotate, which in turn causes the second shaft 32 to rotate. The ball valve 30 in the drain pipe 26 rotates, and the through hole 31 connects the drain pipe 26. At this time, the device uses the air pressure during operation to drive the ball valve to open, releasing the disinfectant to clean the filter screen 25 which is in the shutdown state. This reduces the number of drive parts in the device and improves the working efficiency of the device.

[0084] Because the air flowing inside the filter tank 21 when it is in the off state is shut off by the three-way reversing valve 23, the air in the connecting pipe 20 when it is in the working state will close the one-way valve 3 in the connecting pipe 20 when it is in the off state, thereby completely sealing the filter tank 21 during cleaning. The disinfectant will not enter the suction pipe 4, thus avoiding the waste of disinfectant. It can also prevent the separator 2 from being overloaded when it is working, and prevent the disinfectant from failing to backwash the filter screen 25, ensuring the smooth cleaning and disinfection of the filter screen 25.

[0085] When the three-way reversing valve 23 opens the other connecting pipe 22, the filter screen 25 stops cleaning, the connecting pipe 22 stops opening, and the air flow inside stops. Under the elastic force of the spring 42 returning to its original position, the connecting rod 40 and the drive rod 41 return to their original positions. Then, the rack 38 drives the other rack 38 adjacent to it to return to its original position. The gears 33 and 37 reverse, and the ball valves 30 and 34 stop the connection between the liquid guide pipe 26 and the drain pipe 28, preventing the liquid storage tank 27 from leaking disinfectant. At this time, the filter tank 21 begins to filter. The other filter tank 21 adjacent to it is opened by another ball valve 30 and 34 and is cleaned. After the three-way reversing valve 23 selects to open any one of the connecting pipes 22, the filter tank 21 connected to the other connecting pipe 22 performs autonomous cleaning and disinfection. This simplifies the complexity of the structure, reduces the use of electrically controlled valve parts, and effectively reduces the cost invested in the manufacture of the device. When the device malfunctions, it can not only reduce the cost of inspection and maintenance, but also reduce the difficulty of troubleshooting.

[0086] Example 9: Reference Figures 1-17 Each of the filter tanks 21 is rotatably connected to a rotating shaft 45, and a vibrating cam 46 is connected to the rotating shaft 45. The vibrating cam 46 is located below the liquid guide tube 26 and is in frictional engagement with the filter screen 25.

[0087] A gear 47 is connected to the end side wall of the rotating shaft 45 outside the filter tank 21. The tooth surface of the gear 47 away from the connecting pipe 22 contacts and engages with the chamfer 49 of the push plate 48. The chamfer 49 is located away from the connecting pipe 22 and is located at the top of the push plate 48. The push plate 48 is longitudinally slidably connected to the moving plate 50. The bottom of the push plate 48 is connected to the moving plate 50 through the spring 51. The moving plate 50 is slidably connected to the filter tank 21. The end of the spring 52 is connected to the moving plate 50. The other end of the spring 52 is connected to the filter tank 21.

[0088] A locking rod 58 is slidably connected to the filter tank 21. The end of the locking rod 58 facing the adapter pipe 22 is connected to the end of the locking plate 60. A spring 4 59 is connected between the locking plate 60 and the filter tank 21. The top of the other end of the locking plate 60 is provided with a chamfer 3 61, which is set towards the teeth of the gear 3 47.

[0089] The end of the movable plate 50 away from the filter tank 21 is connected to the end of the connecting rod 2 53. The other end of the connecting rod 2 53 is connected to the end face of the push plate 2 54. The other end face of the push plate 2 54 is set towards the gear 4 55. The gear 4 55 is connected to the output shaft of the motor 2 56. The motor 2 56 is connected to the rack 38 through the connecting rod 3 57.

[0090] The principles and beneficial effects of the above scheme are as follows:

[0091] When the filter screen 25 is cleaned in reverse by the disinfectant, the rotation of the rotating shaft 45 drives the vibrating cam 46 to rotate, thereby vibrating the impurities stuck in the filter holes of the filter screen 25, and efficiently cleaning the impurities with the help of the flowing disinfectant.

[0092] When the rotating shaft 45 needs to rotate, the moving plate 50 moves towards the adapter tube 22, the spring 52 is stretched, and the push plate 48 moves synchronously. The push plate 48 drives the gear 47 to rotate, thereby realizing the rotation of the rotating shaft 45. The teeth of the rotating gear 47 engage with the chamfer 61. The locking plate 60 and the locking rod 58 move away from the adapter tube 22, and the spring 59 is compressed. At this time, the locking plate 60 can prevent the rotation of the gear 47 from being stopped. Then, under the elastic force of the spring 52 returning to its original position, the moving plate 50 moves in the opposite direction. After the chamfer 49 engages with the teeth of the gear 47, the push plate 48 moves relative to the gear 47. As the movable plate 50 moves downward, spring 2 51 is compressed. At this time, under the elastic force of spring 4 59 returning to its original position, the locking plate 60 uses its bottom to limit gear 3 47 to prevent it from reversing. The intermittently rotating gear 3 47 can cause the vibrating cam 46 to rotate intermittently. Thus, when vibrating the filter screen 25, the rotation frequency can be controlled. This not only thoroughly cleans the filter screen 25 but also prevents damage to the filter screen 25 due to excessive rotation frequency. The reset movable plate 50 continues to drive the push plate 48 to reset. Under the elastic force of spring 2 51 returning to its original position, the push plate 48 moves upward to reset, preparing for the next operation.

[0093] While cleaning the filter screen 25, the movement of the rack 38 drives the second motor 56 to move. The second motor 56 approaches the push plate 2 54, which is in the cleaning state. The second motor 56 starts, and the gear 4 55 connected to it rotates. The rotating gear 4 55 pushes the push plate 2 54 towards the direction of the adapter pipe 22, increasing the length of the third spring 52. Subsequently, under the elastic force of the third spring 52, the moving plate 50 resets. Therefore, the rotating gear 4 55 can drive the push plate 2 54 and the moving plate 50 to move. Under the elastic force of the third spring 52, the moving plate 50 automatically resets, reducing the difficulty of the reciprocating motion of the device, reducing the complexity of the device, further reducing the use of electrical control equipment in the device, reducing the manufacturing cost of the device, and reducing the difficulty of troubleshooting device malfunctions.

[0094] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. Other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A gas-liquid separation device, characterized in that, include: A frame (1) is connected to a plurality of separators (2). The input end of the separator (2) is connected to the output shaft of the motor (3) on the frame (1). A suction pipe (4) and a drain pipe (5) are connected to both sides of the separator (2). A plurality of air pumps (6) are connected to the frame (1). Each air pump (6) is connected to a separator (2) through a suction pipe (7). A one-way valve (8) is connected to the suction pipe (7). The separator (2) has a suction port (10) and a drain port (11) on its outer shell (9). The suction port (10) is connected to the suction pipe (4), and the drain port (11) is connected to the drain pipe (5). The end of the air extraction pipe (7) is connected to the inner wall of the outer shell (9). A rotating shaft (13) is rotatably connected inside the outer shell (9). The end of the rotating shaft (13) that extends through the top surface of the outer shell (9) is connected to the output shaft of the motor (3). The side wall of the rotating shaft (13) is connected to the ends of multiple centrifugal plates (14). The other end of the centrifugal plates (14) is connected to the inner wall of the cyclone separator (15). The bottom end of the rotating shaft (13) is connected to a lower baffle plate (16). The lower baffle plate (16) is placed inside the outer shell (9). Multiple centrifugal blades (17) are arranged in a circular array on the lower baffle plate (16). The top of the centrifugal disc (17) is positioned below the cyclone separator (15), and the centrifugal disc (17) is located between the side wall of the cyclone separator (15) and the inner wall of the outer shell (9). The inner wall of the outer shell (9) is connected to the side wall of the spiral water-blocking ring (18). The inner wall of the spiral water-blocking ring (18) is rotated and sealed with the cyclone separator (15). The inner wall of the outer shell (9), the top surface of the spiral water-blocking ring (18), and the cyclone separator (15) form a dry chamber. The end of the suction pipe (7) is set towards the dry chamber. The inner wall of the outer shell (9), the bottom surface of the spiral water-blocking ring (18), the cyclone separator (15), and the lower water-blocking plate (16) form a wet chamber. The suction port (10) is located above the drain port (11). The spiral water-blocking ring (18) spirals from the suction port (10) to the drain port (11).

2. The gas-liquid separation device according to claim 1, characterized in that, The outer shell (9) is connected to a one-way valve (12) on its side wall. The one-way valve (12) is located between the suction port (10) and the drain port (11).

3. A gas-liquid separation method, applicable to the gas-liquid separation apparatus according to any one of claims 1-2, characterized in that, Includes the following steps: Start the motor (3) and air pump (6), and the output shaft of the motor (3) drives the rotating shaft (13) to rotate; The rotating shaft (13) drives the centrifugal plate (14), cyclone separator (15), lower baffle plate (16) and centrifugal disc (17) to rotate; After the air pump (6) is started, it generates a negative pressure inside the housing (9), thereby drawing the gas-liquid mixture in the suction port (10) into the housing (9); After the gas-liquid mixture is drawn into the outer shell (9), the liquid flows out from the drain port (11) along the inner wall of the outer shell (9) under the guidance of the spiral water-blocking ring (18); As the liquid flows out from the drain (11) along the inner wall of the outer shell (9), the gas is discharged through the suction pipe (7) after passing through the centrifugal plate (14) and centrifugal disc (17).

4. A dental electric suction device, applicable to the gas-liquid separation device as described in claim 1, characterized in that, include: Mounting housing (19), the suction tube (4) is connected to the ends of two connecting tubes (20), each connecting tube (20) is fixed inside the mounting housing (19), each of the two connecting tubes (20) is connected to a one-way valve three, the other end of the connecting tube (20) is connected to the end of the filter tank (21), the other end of the filter tank (21) is connected to the end of the adapter tube (22), and the other end of the adapter tube (22) is connected to one output end of the three-way reversing valve (23). The input end of the three-way reversing valve (23) is connected to the suction pipe via a hose (24). Each filter tank (21) is connected to a filter screen (25). The top of the filter tank (21) is connected to the bottom end of a liquid guide pipe (26). The top end of the liquid guide pipe (26) is connected to the bottom of a storage tank (27). The storage tank (27) contains disinfectant. The liquid guide pipe (26) is located between the connecting pipe (20) and the filter screen (25). A switch assembly is connected to the liquid guide pipe (26).

5. The dental electric suction device according to claim 4, characterized in that, The bottom of the filter tank (21) is connected to the top of the drain pipe (28), which is connected to the switch assembly. The bottom of the drain pipe (28) is set to open towards the top of the collection box (29) inside the mounting shell (19). The drain pipe (28) and the guide pipe (26) are respectively set on both sides of the filter screen (25).

6. The dental electric suction device according to claim 5, characterized in that, The switching assembly includes: a ball valve (30), which is rotatably and sealedly connected inside the liquid guide tube (26). The through hole (31) of the ball valve (30) is perpendicular to the axis of the liquid guide tube (26). The rotating shaft (32) connected to the side wall of the ball valve (30) is rotatably and sealedly engaged with the liquid guide tube (26). The end of the rotating shaft (32) extending out to the side wall of the liquid guide tube (26) is connected to a gear (33). A ball valve (34) is rotatably and sealedly connected inside the drain tube (28). The through hole (35) of the ball valve (34) is perpendicular to the axis of the drain tube (28). The rotating shaft (36) connected to the side wall of the ball valve (34) is rotatably and sealedly engaged with the drain tube (28). The end of the rotating shaft (36) extending out to the side wall of the drain tube (28) is connected to a gear (37). Both the gear (33) and the gear (37) are connected to the drive assembly.

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