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

Abstract

The invention relates to the technical field of separator equipment, in particular to a gas-liquid separation device which comprises a machine frame, a plurality of separators are connected to the machine frame, the input ends of the separators are connected with an output shaft of a motor on the machine frame, the two sides of each separator are connected with a suction pipe and a drainage pipe respectively, and a plurality of air pumps are connected to the machine frame. Each air pump is connected with a separator through an exhaust pipe, one-way valves are connected to the exhaust pipes, one sides of the separators arranged in the device are connected with the exhaust pipes, the other sides of the separators are connected with the air pumps through the exhaust pipes, and the one-way valves arranged on the exhaust pipes can prevent water from entering the air pumps in a shutdown state. And no fault occurs in the next work.

Description

Technical Field

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

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

[0003] However, in the prior art, when multiple gas-liquid separation devices are working in parallel, since some separators are in a shutdown state, when other separators are working, the flowing gas-liquid mixture is likely to enter the shutdown separator and cause damage to it. Summary of the Invention

[0004] The present invention provides a gas-liquid separation device, a gas-liquid separation method and a dental electric suction machine, which are used to solve the problems raised in the background technology.

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

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

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

[0008] Preferably, a rotating shaft is rotatably connected inside the outer shell, the end of the rotating shaft passing through the top surface of the outer shell 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 plate is connected to the inner wall of the cyclone separation tube, and the bottom end of the rotating shaft is connected to a lower water retaining plate, the lower water retaining plate is placed in the outer shell, and a plurality of centrifugal plates are provided in a circular array on the lower water retaining plate.

[0009] Preferably, the top of the centrifugal blade is arranged below the cyclone separation tube, and the centrifugal blade is located between the side wall of the cyclone separation tube and the inner wall of the shell.

[0010] Preferably, the inner wall of the outer shell is connected to the side wall of the spiral water retaining ring, the inner wall of the spiral water retaining ring is rotated and sealed with the cyclone separation tube, the inner wall of the outer shell, the top surface of the spiral water retaining ring and the cyclone separation tube constitute a dry cavity, the end of the exhaust pipe is arranged toward the dry cavity, the inner wall of the outer shell, the bottom surface of the spiral water retaining ring, the cyclone separation tube and the lower water retaining plate constitute a wet cavity, the suction port is located above the drain port, and the spiral water retaining ring is arranged from the suction port to the drain port in a spiral manner.

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

[0012] Start the motor and air pump, and the output shaft of the motor drives the shaft to rotate;

[0013] The rotation of the shaft drives the centrifugal plate, cyclone separation tube, lower water retaining plate and centrifugal piece to rotate;

[0014] After the air pump is started, negative pressure is generated in the housing, thereby sucking the gas-liquid mixture in the suction port into the housing;

[0015] After the gas-liquid mixture is sucked 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 retaining ring;

[0016] While the liquid flows out from the drain port along the inner wall of the shell, the gas passes through the centrifugal plate and centrifugal blades and is discharged through the exhaust pipe.

[0017] Preferably, a dental electric suction machine is suitable for a gas-liquid separation device described in any one of the above items, comprising: a mounting shell, the suction pipe is connected to the ends of two connecting pipes, each connecting pipe is fixed in the mounting shell, each of the two connecting pipes is connected to a one-way valve three, the other end of the connecting pipe is connected to the end of the filter tank, the other end of the filter tank is connected to the end of the transfer pipe, the other end of the transfer pipe is connected to an output end of the three-way reversing valve, the input end of the three-way reversing valve is connected to the suction pipe through a hose, each filter tank is connected to a filter screen, the top of the filter tank is connected to the bottom end of the liquid guide tube, the top of the liquid guide tube is connected to the bottom of the liquid storage tank, the liquid storage tank is filled with disinfectant, the liquid guide tube is arranged between the connecting pipe and the filter screen, and the liquid guide tube is connected to a switch assembly.

[0018] Preferably, the bottom of the filter tank is connected to the top of a drain pipe, the drain pipe is connected to the switch assembly, the bottom end of the drain pipe is arranged toward the top opening of the collection box in the installation shell, and the drain pipe and the liquid guide pipe are respectively arranged on both sides of the filter screen.

[0019] Preferably, the switch assembly includes: a ball valve, a ball valve is connected to the liquid guide tube for rotation and sealing, the through hole of the ball valve is arranged perpendicular to the axis of the liquid guide tube, a second rotating shaft connected to the side wall of the ball valve cooperates with the rotation seal of the liquid guide tube, the end of the second rotating shaft passing through the side wall of the liquid guide tube is connected to a gear, a second ball valve is connected to the liquid discharge tube for rotation and sealing, the second through hole of the second ball valve is arranged perpendicular to the axis of the liquid discharge tube, a third rotating shaft connected to the side wall of the second ball valve cooperates with the rotation seal of the liquid discharge tube, the end of the third rotating shaft passing through the side wall of the liquid discharge tube is connected to the second gear, and both the gear and the second gear are connected to the drive assembly.

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

[0021] In the solution of the present invention:

[0022] Multiple separators are set up in the device, 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 suction pipe. The one-way valve set on the suction pipe can prevent moisture from entering the air pump when it is in the shutdown state, ensuring that it will not malfunction when it works next time. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 2 Schematic diagram of the connection between the air extraction pipe and the one-way valve of the present invention;

[0025] Figure 3 Schematic diagram of the housing structure of the present invention;

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

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

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

[0029] Figure 7 Schematic diagram of the filter structure of the present invention;

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

[0031] Figure 9 This is a schematic diagram of the connection relationship between the rack and the connecting rod 2 of the present invention;

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

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

[0034] Figure 12Schematic diagram of the relative position relationship between the filter screen and the vibrating cam of the present invention;

[0035] Figure 13 This is a schematic diagram of the third installation position 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 It is a schematic diagram of the structure of the movable plate of the present invention;

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

[0039] Figure 17 Schematic diagram of the relative position relationship between gear three and the locking plate of the present invention.

[0040] Among them: frame 1, separator 2, motor 3, suction pipe 4, drain pipe 5, air pump 6, suction pipe 7, one-way valve 8, shell 9, suction port 10, drain port 11, one-way valve 2 12, shaft 13, centrifugal plate 14, cyclone separation pipe 15, lower water retaining plate 16, centrifugal plate 17, spiral water retaining ring 18, mounting shell 19, connecting pipe 20, filter tank 21, adapter pipe 22, three-way reversing valve 23, hose 24, filter screen 25, liquid guide pipe 26, liquid storage tank 27, drain pipe 28, collection box 29, ball valve 30, through hole 3 1. Rotating shaft 2 32, gear 33, ball valve 2 34, through hole 2 35, rotating shaft 36, gear 2 37, rack 38, connecting rod 39, connecting rod 2 40, driving 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 DESCRIPTION

[0041] 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.

[0042] Example 1: Reference Figures 1-17 A gas-liquid separation device includes: a frame 1, a plurality of separators 2 are connected to the frame 1, 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 respectively connected on 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 an exhaust pipe 7, and a one-way valve 8 is connected to the exhaust pipe 7.

[0043] The principles of the above scheme are:

[0044] When drying air containing moisture, start the air pump 6 and the motor 3 at the same time, the exhaust pipe 7 provides negative pressure for the separator 2, and 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, and the dry air enters the air pump 6 through the one-way valve 8 on the exhaust pipe 7 and is discharged through the other end of the air pump 6. Since there are multiple separators 2 connected to the frame 1, the device will choose to start one or more separators 2 according to the actual situation when working, so that there is sufficient negative pressure to suck the mixed gas. When there is a separator 2 that does not need to be started in the device, the one-way valve 8 on the exhaust pipe 7 connected to the separator 2 is in a closed state, so that moisture will not enter the air pump 6 connected to the separator 2 that is shut down.

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

[0046] Multiple separators 2 are set in the device, one side of which is connected to the suction pipe 4, and the other side of the separator 2 is connected to the air pump 6 through the exhaust pipe 7. The one-way valve 8 set on the exhaust pipe 7 can prevent the air pump 6 in the shutdown state from entering the water, ensuring that it will not malfunction when it works next time.

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

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

[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] An exhaust pipe 7 is connected to the inner wall of the outer shell 9, so that after the air pump 6 is started, negative pressure is generated inside the separator 2 to suck the gas.

[0051] Example 3: Reference Figures 1-17 The side wall of the shell 9 is connected to a second one-way valve 12 , and the second one-way valve 12 is arranged between the suction port 10 and the drain port 11 .

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

[0053] Since the separator 2 is in operation and a one-way valve 12 is provided on its outer shell 9, when the air pump 6 connected thereto generates negative pressure inside the outer shell 9, the one-way valve 12 is in a closed state. 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 water in 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 interior of the outer shell 9, preventing the long-term presence of retained water inside the outer shell from causing rust on the outer shell 9 or other components inside the outer shell, 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 passes 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 end of a plurality of centrifugal plates 14. The other end of the centrifugal plate 14 is connected to the inner wall of the cyclone separation tube 15. The bottom end of the rotating shaft 13 is connected to a lower water retaining plate 16. The lower water retaining plate 16 is placed in the outer shell 9. A plurality of centrifugal blades 17 are arranged in a circular array on the lower water retaining plate 16.

[0055] The top of the centrifugal blade 17 is arranged below the cyclone separation tube 15 , and the centrifugal blade 17 is located between the side wall of the cyclone separation tube 15 and the inner wall of the shell 9 .

[0056] The inner wall of the outer shell 9 is connected to the side wall of the spiral water retaining ring 18, and the inner wall of the spiral water retaining ring 18 is rotatably sealed with the cyclone separation tube 15. The inner wall of the outer shell 9, the top surface of the spiral water retaining ring 18 and the cyclone separation tube 15 constitute a dry cavity, and the end of the exhaust pipe 7 is arranged toward the dry cavity. The inner wall of the outer shell 9, the bottom surface of the spiral water retaining ring 18, the cyclone separation tube 15 and the lower water retaining plate 16 constitute a wet cavity. The suction port 10 is located above the drain port 11, and the spiral water retaining ring 18 is arranged from the suction port 10 to the drain port 11 in a spiral manner.

[0057] The bottom wall of the outer shell 9 is provided with a screw hole, which is arranged between the lower water retaining plate 16 and the inner wall of the outer shell 9, and a drain nut is threadedly connected to the inner thread of the screw hole.

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

[0059] After the motor 3 is started, the shaft 13 rotates, and the centrifugal plate 14, the water retaining disk 16 and the centrifugal piece 17 rotate synchronously. The mixed gas in the shell 9 spirally flows downward along the bottom surface of the spiral water retaining ring 18 under the action of the negative pressure generated by the air pump 6. At this time, the inner wall of the shell 9, the top surface of the spiral water retaining ring 18 and the cyclone separation tube 15 form a dry cavity, and the end of the exhaust pipe 7 is arranged toward the dry cavity. The inner wall of the shell 9, the bottom surface of the spiral water retaining ring 18, the cyclone separation tube 15 and the lower water retaining disk 16 form a wet cavity. After the mixed gas flows to the centrifugal piece 17 in the wet cavity, water is separated from the air under its centrifugal action and enters the drain port 11. The dry air after the water is separated enters the dry cavity of the shell 9 through the centrifugal piece 17, the centrifugal plate 14 and the cyclone separation tube 15 under the action of negative pressure, and is discharged through the exhaust pipe 7. The device improves the separation efficiency of water and air in the mixed gas.

[0060] The provision of the drain nut can further reduce the difficulty of draining excess water from the housing 9 after shutdown, thereby improving the convenience of the device during use and facilitating inspection of the interior of the housing 9.

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

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

[0063] The rotation of the rotating shaft 13 drives the centrifugal plate 14, the cyclone separation tube 15, the lower water retaining plate 16 and the centrifugal blade 17 to rotate;

[0064] After the air pump 6 is started, negative pressure is generated in the housing 9, thereby sucking the gas-liquid mixture in the suction port 10 into the housing 9;

[0065] After the gas-liquid mixture is sucked into the housing 9, the liquid flows out from the drain port 11 along the inner wall of the housing 9 under the guidance of the spiral water retaining ring 18;

[0066] While the liquid flows out from the drain port 11 along the inner wall of the shell 9 , the gas passes through the centrifugal plate 14 and the centrifugal piece 17 and is discharged through the exhaust pipe 7 .

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

[0068] The motor 3 and the air pump 6 are started simultaneously, generating negative pressure in the housing 9. The rotation of the rotating shaft 13 drives the centrifugal plate 14, the cyclone separation tube 15, the lower water retaining plate 16 and the centrifugal blades 17 to rotate. After the gas-liquid mixture is sucked into the housing 9, under the guidance of the spiral water retaining 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 housing 9. The dry air enters the air pump 6 through the exhaust 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 volume of the device.

[0069] Example 6: Reference Figures 1-17 , a dental electric suction machine, suitable for a gas-liquid separation device described in any of the above, comprising: a mounting shell 19, the suction pipe 4 is connected to the end of two connecting pipes 20, each connecting pipe 20 is fixed in the mounting shell 19, and each of the two connecting pipes 20 is connected to a one-way valve three, the other end of the connecting pipe 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 transfer pipe 22, the other end of the transfer pipe 22 is connected to an output end of the three-way reversing valve 23, and the input end of the three-way reversing valve 23 is connected to the suction assembly through 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 the liquid guide pipe 26, the top of the liquid guide pipe 26 is connected to the bottom of the liquid storage tank 27, the liquid storage tank 27 is filled with disinfectant, the liquid guide pipe 26 is arranged between the connecting pipe 20 and the filter screen 25, and the liquid guide pipe 26 is connected to a switch assembly.

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

[0071] After the air pump 6 is started, negative pressure is generated in the connecting pipe 20, and then negative pressure is generated in the hose 24 and the suction assembly. When the suction assembly suctions the oral cavity, saliva and air in the patient's oral cavity enter the hose 24, pass through the three-way reversing valve 23 and enter a transfer pipe 22, and the sucked impurities are filtered on the filter screen 25 in the filter tank 21. The air with impurities filtered out enters the suction pipe 4 through the one-way valve 3 in the connecting pipe 20, so as to ensure that impurities in the sucked mixed gas will not enter the separator 2 and the air pump 6 to cause damage to the devices, and reduce the difficulty of cleaning, maintenance and disinfection of the two.

[0072] When one filter 25 reaches its upper limit, the three-way reversing valve 23 is activated to connect the other transfer pipe 22, and then the other filter 25 is used to filter impurities. Two filters 25 are provided in the device, each installed in a filter tank 21. When the filtering effect of one filter 25 reaches its upper limit, the user can control the connection direction of the three-way reversing valve 23 to control the connection of the other filter tank 21, and use the filter 25 inside it to filter the air, ensuring the continuity of the device's suction operation.

[0073] The filter 25 that has reached the upper limit of filtration needs to be cleaned. At this time, the switch assembly is opened, and the disinfectant in the liquid storage tank 27 enters the filter tank 21 through a liquid guide tube 26. Since the liquid guide tube 26 is arranged between the connecting pipe 20 and the filter 25, the disinfectant flowing into the filter tank 21 can reversely flush the filter 25. At this time, not only the filter 25 can be disinfected, but also impurities on the filter 25 can be cleaned, thereby improving the working efficiency of the device during maintenance. The simultaneous cleaning and disinfection shortens the maintenance time of the filter 25. Therefore, when the device is used for a long time, there will be no downtime due to maintenance.

[0074] The volume of the liquid storage tank 27 can be selected based on actual conditions. When the filter tank 21 needs to be thoroughly cleaned, a liquid storage tank 27 with a larger volume can be selected.

[0075] Example 7: Reference Figures 1-17 The bottom of the filter tank 21 is connected to the top of a drain pipe 28, which is connected to the switch assembly. The bottom end of the drain pipe 28 is arranged toward the top opening of the collection box 29 in the mounting shell 19, and the drain pipe 28 and the liquid guide tube 26 are respectively arranged on both sides of the filter screen 25.

[0076] The switch assembly includes: a ball valve 30, which is rotatably sealed and connected to the liquid guide tube 26, and a through hole 31 of the ball valve 30 is arranged perpendicular to the axis of the liquid guide tube 26. A second rotating shaft 32 connected to the side wall of the ball valve 30 is rotatably sealed and matched with the liquid guide tube 26. The end of the second rotating shaft 32 extending outside the side wall of the liquid guide tube 26 is connected to a gear 33. A second ball valve 34 is rotatably sealed and connected to the drain pipe 28, and a second through hole 35 of the second ball valve 34 is arranged perpendicular to the axis of the drain pipe 28. A third rotating shaft 36 connected to the side wall of the second ball valve 34 is rotatably sealed and matched with the drain pipe 28. The end of the third rotating shaft 36 extending outside the side wall of the drain pipe 28 is connected to a second gear 37. Both the gear 33 and the second gear 37 are connected to the drive assembly.

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

[0078] When a filter screen 25 is being cleaned, in order to avoid excessive pressure inside the filter tank 21 where the filter screen 25 is located, a drain pipe 28 is connected to the bottom of the filter tank 21, and the disinfectant after cleaning is discharged through the through hole 35 of the ball valve 34 in the drain pipe 28, thereby preventing impurities after disinfection from remaining inside the filter tank 21; and when the disinfectant is supplied by the liquid guide pipe 26 connected to the filter tank 21, the disinfectant enters the filter tank 21 from the liquid storage tank 27 through the through hole 31 of the ball valve 30, and the ball valve 30 and The second ball valve 34 is provided with a through hole 31 and a second through hole 35. When the disinfectant needs to flow, the drive assembly is activated to drive the gear 33 and the second rotating gear 37 to rotate. The gear 33 drives the second rotating shaft 32 and the ball valve 30 to rotate. The second gear 37 drives the third rotating shaft 36 and the second ball valve 34 to rotate. The through hole 31 and the second through hole 35 are connected to the liquid guide tube 26 and the liquid discharge tube 28, respectively, so that the disinfectant can be discharged, thereby preventing the growth of microorganisms in the filter tank 21 and the clogging of the filter screen 25, and improving the coordination of the mechanism during operation.

[0079] When it is necessary to seal the filter tank 21, it is only necessary to start the driving assembly to drive the gear 33 and the rotating gear 2 37 to rotate in the opposite direction, the gear 33 drives the rotating shaft 2 32 and the ball valve 30 to rotate in the opposite direction, the gear 2 37 drives the rotating shaft 36 and the ball valve 2 34 to rotate in the opposite direction, and the through hole 31 and the through hole 2 35 respectively terminate the conduction between the liquid guide tube 26 and the liquid discharge tube 28. The driving assembly improves the efficiency of switching between the cleaning and sealing states of the filter tank 21. When the driving assembly is working, the other filter tank 21 is in the working state, that is, the other ball valve 30 and the ball valve 2 34 seal the top and bottom of the filter tank 21, so that the other filter tank 21 will not experience a phenomenon of reduced sealing performance and pressure loss.

[0080] The disinfectant and impurities after cleaning enter the collection box 29 for unified collection, so as to facilitate unified treatment after the device is shut down.

[0081] Example 8: Reference Figures 1-17 The driving assembly includes: a rack 38, the longitudinally adjacent gears 33 and gear 2 37 are respectively meshed with a rack 38, the rack 38 is slidably connected to the inner wall of the mounting shell 19, and the two longitudinally adjacent racks 38 are connected by a connecting rod 39. The rack 38 spaced apart from a filter tank 21 is connected to the end of the driving rod 41 through a connecting rod 2 40. The two connecting rods 2 40 are arranged in parallel, and the side wall of the end of the driving rod 41 is connected to the connecting pipe 20 of the other filter tank 21 through a spring 42. The driving rod 41 is slidably connected to the connecting pipe 20, and the end of the driving rod 41 placed in the connecting pipe 20 is connected to the end of the pressure plate 43, and the end surface 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:

[0083] When the device starts to suck the oral cavity, the three-way reversing valve 23 turns on one transfer pipe 22 and closes the other transfer pipe 22. The transfer pipe 22 in the conduction inputs air into the filter tank 21 in the filtering state, and then air flows into the connecting pipe 20 connected thereto. At this time, the chamfer 44 on the pressure plate 43 is subjected to the pressure of the air flow, driving the drive rod 41 to move toward the middle of the mounting shell 19, and synchronously moving the connecting rod 2 40. The spring 42 is stretched, and the movement of the connecting rod 2 40 drives the rack 38 adjacent to the other filter tank 21 to move. The rack 38 drives the longitudinal The adjacent racks 38 move synchronously, and then the second gear 37 rotates, and the second gear 37 drives the third shaft 36 to rotate. After the second ball valve 34 rotates, the second through hole 35 is connected to the drainage pipe 28. Another rack 38 adjacent in the longitudinal direction drives the gear 33 meshing with it to rotate, and then the second shaft 32 rotates, and the ball valve 30 in the drainage pipe 26 rotates, and the through hole 31 connects the drainage pipe 26. At this time, the device uses the air pressure during operation to drive the ball valve part to open, release the disinfectant to clean the filter 25 in the shutdown state, reduce the number of driving parts in the device, and improve the working efficiency of the device;

[0084] Since the air flowing in the filter tank 21 in the shutdown state is closed by the three-way reversing valve 23, the air in the connecting pipe 20 in the working state closes the one-way valve 3 in the connecting pipe 20 in the shutdown state, thereby completely sealing the filter tank 21 during cleaning, and the disinfectant will not enter the interior of the suction pipe 4, thereby avoiding waste of disinfectant, and also avoiding the phenomenon of excessive load on the separator 2 during operation, and preventing the disinfectant from being unable to backwash the filter screen 25, thereby ensuring the smooth cleaning and disinfection of the filter screen 25;

[0085] When the three-way reversing valve 23 connects the other transfer pipe 22, the filter screen 25 is cleaned, the transfer pipe 22 is closed, and the air flow therein stops. Under the elastic force of the spring 42, the connecting rod 240 and the driving rod 41 are reset, and then the rack 38 drives the other rack 38 adjacent to it in the longitudinal direction to reset. The gear 33 and the gear 2 37 are reversed, and the ball valve 30 and the ball valve 2 34 stop connecting the liquid guide pipe 26 and the liquid discharge pipe 28 to prevent the disinfectant from leaking from the liquid storage tank 27. At this time, the filter tank 21 starts filtering, and the adjacent filter tank 21 is connected to the other ball valve 30 and the ball valve 2 34 and is cleaned. After the three-way reversing valve 23 selects to connect any one of the transfer pipes 22, the filter tank 21 connected to the other transfer pipe 22 is automatically cleaned and disinfected, which simplifies the complexity of the structure, reduces the use of electronically controlled valve parts, and effectively reduces the cost of device manufacturing. When the device fails, 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 the rotating shaft 45 is connected to a vibrating cam 46. The vibrating cam 46 is arranged below the liquid guide tube 26, and the vibrating cam 46 is frictionally matched with the filter screen 25.

[0087] The side wall of the end of the rotating shaft 45 outside the filter tank 21 is connected to the gear 3 47. The tooth surface of the gear 3 47 away from the transfer tube 22 is in contact with the chamfer 2 49 of the push plate 48. The chamfer 2 49 is set away from the transfer tube 22 and is set at the top of the push plate 48. The push plate 48 is longitudinally slidably connected to the movable plate 50. The bottom of the push plate 48 is connected to the movable plate 50 through the spring 2 51. The movable plate 50 is slidably connected to the filter tank 21. The end of the spring 3 52 is connected to the movable plate 50, and the other end of the spring 3 52 is connected to the filter tank 21.

[0088] A locking rod 58 is slidably connected to the filter tank 21, and the end of the locking rod 58 facing the transfer tube 22 is connected to the end of the locking plate 60. A spring four 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 three 61, and the chamfer three 61 is set towards the teeth of the gear three 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, and 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 toward the gear 4 55. The gear 4 55 is connected to the output shaft of the motor 2 56, and 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:

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

[0092] When the rotating shaft 45 needs to be rotated, the movable plate 50 moves in the direction of the transfer tube 22, the spring 3 52 is stretched, and the push plate 48 moves synchronously. The push plate 48 toggles the gear 3 47 to rotate, thereby realizing the rotation of the rotating shaft 45. The teeth of the rotating gear 3 47 contact and cooperate with the chamfer 3 61, and the locking plate 60 and the locking rod 58 move in the direction away from the transfer tube 22. The spring 4 59 is compressed. At this time, the locking plate 60 can prevent the rotation of the gear 3 47 from being blocked. Subsequently, the movable plate 50 moves in the opposite direction under the elastic force of the spring 3 52. After the chamfer 2 49 contacts and cooperates with the teeth of the gear 3 47, the push plate 48 is relative to The movable plate 50 moves downward, and the second spring 51 is compressed. At this time, the locking plate 60, under the elastic force of the fourth spring 59, uses its bottom to limit the gear 3 47 to prevent it from reversing. The intermittent rotation of the gear 3 47 can make the vibration cam 46 rotate intermittently, and then when the filter 25 is vibrated, the rotation frequency can be controlled, which can not only thoroughly clean the filter 25, but also prevent the filter 25 from being damaged by excessive rotation frequency. The reset movable plate 50 continues to drive the push plate 48 to reset. Under the elastic force of the second spring 51, the push plate 48 moves upward and resets to prepare for the next work.

[0093] While the filter 25 is being cleaned, the movement of the rack 38 drives the motor 2 56 to move. The motor 2 56 approaches the push plate 2 54 which is in the cleaning state. The motor 2 56 is started, and the gear 4 55 connected thereto rotates. The rotating gear 4 55 pushes the push plate 2 54 to move it in the direction of the transfer tube 22. The length of the spring 3 52 increases, and then the moving plate 50 is reset under the elastic force of the spring 3 52. 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 spring 3 52, the moving plate 50 is automatically reset, which reduces the difficulty of the reciprocating motion of the device and reduces the complexity of the device, further reduces the use of electrical control equipment in the device, reduces the cost of device manufacturing, and reduces the difficulty of troubleshooting device failures.

[0094] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of 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 provided, wherein a plurality of separators (2) are connected to the frame (1), an input end of the separator (2) is connected to an output shaft of a motor (3) on the frame (1), a suction pipe (4) and a drainage pipe (5) are respectively connected to both sides of the separator (2), and a plurality of air pumps (6) are connected to the frame (1), each air pump (6) is connected to a separator (2) via an air extraction pipe (7), and a one-way valve (8) is connected to the air extraction pipe (7).

2. A gas-liquid separation device according to claim 1, characterized in that: The outer shell (9) of the separator (2) is provided with a suction port (10) and a drain port (11). The suction port (10) is connected to the suction pipe (4), and the drain port (11) is connected to the drain pipe (5). The inner wall of the outer shell (9) is connected to the end of the exhaust pipe (7).

3. A gas-liquid separation device according to claim 2, characterized in that: The side wall of the housing (9) is connected to a second one-way valve (12), which is arranged between the suction port (10) and the drain port (11).

4. A gas-liquid separation device according to claim 3, characterized in that: A rotating shaft (13) is rotatably connected in the housing (9), and the end of the rotating shaft (13) extending out from the top surface of the housing (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 a plurality of centrifugal plates (14), and the other end of the centrifugal plates (14) is connected to the inner wall of the cyclone separation tube (15). The bottom end of the rotating shaft (13) is connected to a lower water retaining plate (16), which is placed in the housing (9). A plurality of centrifugal plates (17) are arranged in a circumferential array on the upper surface of the lower water retaining plate (16).

5. A gas-liquid separation device according to claim 4, characterized in that: The top of the centrifugal blade (17) is arranged below the cyclone separation tube (15), and the centrifugal blade (17) is located between the side wall of the cyclone separation tube (15) and the inner wall of the shell (9).

6. A gas-liquid separation device according to claim 5, characterized in that: The inner wall of the shell (9) is connected to the side wall of the spiral water retaining ring (18), and the inner wall of the spiral water retaining ring (18) is rotationally sealed with the cyclone separation tube (15). The inner wall of the shell (9), the top surface of the spiral water retaining ring (18) and the cyclone separation tube (15) form a dry cavity. The end of the exhaust pipe (7) is arranged toward the dry cavity. The inner wall of the shell (9), the bottom surface of the spiral water retaining ring (18), the cyclone separation tube (15) and the lower water retaining plate (16) form a wet cavity. The suction port (10) is located above the drain port (11), and the spiral water retaining ring (18) is spirally arranged from the suction port (10) to the drain port (11).

7. A gas-liquid separation method, applicable to a gas-liquid separation device according to any one of claims 1 to 6, characterized in that: The following steps are involved: The motor (3) and the air pump (6) are started, and the output shaft of the motor (3) drives the rotating shaft (13) to rotate; The rotation of the rotating shaft (13) drives the centrifugal plate (14), the cyclone separation tube (15), the lower water retaining plate (16) and the centrifugal piece (17) to rotate; After the air pump (6) is started, negative pressure is generated in the housing (9), thereby sucking the gas-liquid mixture in the suction port (10) into the housing (9); After the gas-liquid mixture is sucked into the housing (9), the liquid flows out from the drain port (11) along the inner wall of the housing (9) under the guidance of the spiral water retaining ring (18); The liquid flows out from the drain port (11) along the inner wall of the shell (9), while the gas passes through the centrifugal plate (14) and the centrifugal piece (17) and is discharged through the exhaust pipe (7).

8. A dental electric suction machine, suitable for a gas-liquid separation device according to any one of claims 1-2, characterized in that: include: The installation shell (19) is provided. The suction pipe (4) is connected to the ends of two connecting pipes (20). Each connecting pipe (20) is fixed in the installation shell (19). A one-way valve (3) is connected to each of the two connecting pipes (20). The other end of the connecting pipe (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 transfer pipe (22). The other end of the transfer pipe (22) is connected to an 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 through a hose (24). A filter screen (25) is connected to each filter tank (21). The top of the filter tank (21) is connected to the bottom end of a liquid guide tube (26). The top end of the liquid guide tube (26) is connected to the bottom of a liquid storage tank (27). The liquid storage tank (27) is filled with disinfectant. The liquid guide tube (26) is arranged between the connecting pipe (20) and the filter screen (25). A switch assembly is connected to the liquid guide tube (26).

9. The dental electric suction machine according to claim 8, characterized in that: The bottom of the filter tank (21) is connected to the top of a drain pipe (28), which is connected to the switch assembly. The bottom end of the drain pipe (28) is arranged toward the top opening of the collection box (29) in the installation shell (19). The drain pipe (28) and the liquid guide pipe (26) are respectively arranged on both sides of the filter screen (25).

10. The dental electric suction machine according to claim 9, characterized in that: The switch assembly comprises: a ball valve (30), the ball valve (30) is rotatably sealed in the liquid guide tube (26), the through hole (31) of the ball valve (30) is arranged perpendicularly to the axis of the liquid guide tube (26), the second rotating shaft (32) connected to the side wall of the ball valve (30) is rotatably sealed with the liquid guide tube (26), the end of the second rotating shaft (32) passing through the side wall of the liquid guide tube (26) is connected to a gear (33), the second ball valve (34) is rotatably sealed in the liquid discharge tube (28), the second through hole (35) of the second ball valve (34) is arranged perpendicularly to the axis of the liquid discharge tube (28), the third rotating shaft (36) connected to the side wall of the second ball valve (34) is rotatably sealed with the liquid discharge tube (28), the end of the third rotating shaft (36) passing through the side wall of the liquid discharge tube (28) is connected to a second gear (37), and both the gear (33) and the second gear (37) are connected to the driving assembly.

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