A gas flow blocking structure of a vane type Tesla valve applied to a diaphragm industry

Abstract

The application relates to the technical field of battery diaphragm drying equipment, and discloses a gas flow resistance structure with an impeller type Tesla valve applied to the diaphragm industry, which comprises an oven, a plurality of heating rollers are rotationally arranged in the cavity of the oven and sequentially passed through by diaphragms, a supporting frame is arranged at the outlet of the oven, a flow resistance unit is arranged on the supporting frame, the flow resistance unit comprises a flow resistance plate, a flow resistance shaft and flow resistance impellers, the flow resistance plate is arranged on the supporting frame, flow resistance grooves are formed in the flow resistance plate, the flow resistance shaft is rotationally arranged in the flow resistance grooves, the flow resistance shaft is rotationally connected with the supporting frame, and a plurality of flow resistance impellers are arranged on the flow resistance shaft at intervals; through the technical scheme, the problem that dichloromethane gas escapes from the oven, causing resource waste and environmental pollution is solved.

Description

Technical Field

[0001] This invention relates to the field of battery separator drying equipment technology, specifically to a gas flow obstruction structure with an impeller-type Tesla valve applied in the separator industry. Background Technology

[0002] The lithium battery separator is a key component of lithium batteries. In the production process of wet-process battery separators, dichloromethane liquid is used to extract the pore-forming agent paraffin oil from the separator. After the separator comes out of the dichloromethane liquid, it passes through a hot roller oven. The heating of the hot rollers causes the dichloromethane liquid on the surface of the separator to vaporize and evaporate. At this time, the concentration of dichloromethane gas in the oven is extremely high, and it will be carried out of the oven by the separator, causing the dichloromethane concentration in the clean room to rise, affecting human health and safe production. At the same time, once the dichloromethane concentration in the clean room exceeds the limit, an alarm will be triggered. After the alarm is triggered, fresh air from outside will be heated or cooled by the air conditioning system and sent into the clean room to replace the polluted air, causing the energy consumption of the air conditioning to increase sharply. This not only results in the loss of dichloromethane, but also increases the energy consumption of the air conditioning. Summary of the Invention

[0003] This invention proposes a gas flow obstruction structure with an impeller-type Tesla valve for use in the diaphragm industry, which solves the problem of resource waste and environmental pollution caused by the escape of dichloromethane gas from the oven in related technologies.

[0004] The technical solution of the present invention is as follows:

[0005] A gas flow obstruction structure for a Tesla valve with impellers, applicable to the diaphragm industry, includes an oven. Several heating rollers, around which diaphragms pass in sequence, are rotatably arranged within the oven's chamber. A support frame is located at the oven's outlet, and a flow obstruction unit is mounted on the support frame. The flow obstruction unit includes a flow obstruction plate, a flow obstruction shaft, and flow obstruction impellers. The flow obstruction plate is mounted on the support frame and has flow obstruction grooves. The flow obstruction shaft is rotatably arranged within the flow obstruction grooves and is rotatably connected to the support frame. Several flow obstruction impellers are spaced apart on the flow obstruction shaft.

[0006] As a further technical solution, there are several flow-blocking grooves and several flow-blocking shafts, and they are arranged in a one-to-one correspondence. Any two adjacent flow-blocking shafts on the support frame are connected by a flow-blocking transmission belt.

[0007] As a further technical solution, a transmission unit is also included. The transmission unit includes a first transmission belt, a first transmission shaft, a second transmission shaft, a first gear, and a second gear. The first transmission shaft and the second transmission shaft are both rotatably mounted on the oven. The first gear is mounted on the first transmission shaft, and the second gear is mounted on the second transmission shaft. The second gear meshes with the first gear. The first transmission shaft and the heating roller are connected by the first transmission belt, and the second transmission shaft and the flow-blocking shaft are connected by the first transmission assembly.

[0008] As a further technical solution, the support frame includes an upper support and a lower support, both of which are mounted on the oven and symmetrically distributed on both sides of the diaphragm. Each of the upper and lower supports is equipped with a flow-blocking unit. The first transmission assembly includes a third transmission shaft, a second transmission belt, a third transmission belt, and a fourth transmission belt. The third transmission shaft is rotatably mounted on the oven. The first and third transmission shafts are connected by the second transmission belt. The third transmission shaft and the flow-blocking shaft on the upper support are connected by the third transmission belt. The second transmission shaft and the flow-blocking shaft on the lower support are connected by the fourth transmission belt.

[0009] As a further technical solution, a reflux unit is also included. The reflux unit includes a reflux belt, a reflux main shaft, a reflux support shaft, and a reflux frame. The reflux frame is disposed in the chamber. The reflux main shaft and the reflux support shaft are both rotatably disposed on the reflux frame. The reflux belt is sleeved on the reflux main shaft and the reflux support shaft. A plurality of reflux components are spaced apart on the reflux belt, and reflux grooves are formed on the reflux components.

[0010] As a further technical solution, the number of reflux units is two and they are symmetrically distributed on both sides of the diaphragm. The reflux unit also includes a reflux drive belt. The number of reflux drive belts is two, one of which is sleeved on one of the reflux main shafts and the second drive shaft, and the other of which is sleeved on another reflux main shaft and the third drive shaft.

[0011] As a further technical solution, an opening and closing unit is also included. The opening and closing unit includes an opening and closing motor, a first opening and closing shaft, a second opening and closing shaft, and a third opening and closing shaft. The opening and closing motor is mounted on the oven. The first opening and closing shaft passes through the side wall of the oven and is fixedly connected to the output shaft of the opening and closing motor. The second and third opening and closing shafts are rotatably mounted in the cavity. The center lines of rotation of the first and second opening and closing shafts are perpendicular to each other, and the center lines of rotation of the second and third opening and closing shafts are perpendicular to each other. The first and second opening and closing shafts, and the second and third opening and closing shafts are connected by bevel gear transmission. The third opening and closing shaft is threadedly connected to the return frame.

[0012] As a further technical solution, the opening and closing unit also includes a worm gear, a worm wheel, a fourth opening and closing shaft, a fifth opening and closing shaft, a sixth opening and closing shaft, a first swing arm, and a second swing arm. The worm gear is disposed on the second opening and closing shaft. The fourth, fifth, and sixth opening and closing shafts are all rotatably disposed on the oven. The worm wheel is disposed on the fourth opening and closing shaft. The worm gear and the worm wheel are meshed together. The two ends of the fifth opening and closing shaft are respectively connected to the fourth and sixth opening and closing shafts via a bevel gear pair. The first swing arm is disposed on the sixth opening and closing shaft. The two sides of the first swing arm are respectively hinged to a second swing arm. One second swing arm is hinged to the upper support, and the other second swing arm is hinged to the lower support. The upper support and the lower support are rotatably connected to the oven via hinges.

[0013] As a further technical solution, the recirculation component includes an arc plate segment, a straight plate segment, and a support column. The support column is disposed on the recirculation belt. The arc plate segment and the straight plate segment are rotatably disposed on the support column. The flow-blocking groove is disposed on the arc plate segment. A locking rod is disposed on the straight plate segment. The recirculation unit further includes a locking assembly and an unlocking assembly. The locking assembly includes a first guide rod, a second guide rod, a magnet, an electromagnetic column, a first guide groove, a first hinge seat, a first sliding rod, a first sliding sleeve, a first spring, and a first locking pin. The first guide rod is disposed on the recirculation frame and located on one side of the recirculation support shaft. The first guide rod is slidably connected to the locking rod. The second guide rod is disposed on the recirculation frame and located on one side of the recirculation support shaft. The second guide rod is connected to the arc plate segment away from the support column. The magnetic block is mounted on the arc plate segment, and the electromagnetic column is mounted on the return belt. The electromagnetic column abuts against or separates from the magnetic block. The first guide groove is mounted on the straight plate segment on the side away from the arc plate segment. The first hinge seat is slidably mounted in the first guide groove. The first sliding sleeve is mounted on the return belt. The first sliding rod is oscillatingly mounted on the first hinge seat and slidably connected to the first sliding sleeve. The first sliding rod has a first locking hole, and the first sliding sleeve has a second locking hole. When the first locking hole and the second locking hole coincide, the first locking pin is inserted into the first locking hole and the second locking hole. The first spring is sleeved on the first locking pin, and the two ends of the first spring act on the first sliding sleeve and the first locking pin, respectively.

[0014] As a further technical solution, the unlocking assembly includes a second hinge seat, a second sliding rod, a second sliding sleeve, a second spring, a third spring, an unlocking block, and an unlocking rod; the first hinge seat is disposed on the side of the arc plate segment away from the straight plate segment; the second sliding sleeve is rotatably disposed on the support column; the second sliding rod is hinged to the second hinge seat and slidably connected to the second sliding sleeve; the second spring is sleeved on the second sliding rod, with its two ends acting on the second sliding rod and the second sliding sleeve respectively; the third spring is sleeved on the first sliding rod, with its two ends acting on the first sliding rod and the first sliding sleeve respectively; the unlocking rod is disposed on the first locking pin; the unlocking block is disposed on the return frame, and the unlocking block is provided with an unlocking arc surface; the unlocking rod slides in contact with the unlocking arc surface.

[0015] The working principle and beneficial effects of this invention are as follows:

[0016] This invention provides a gas flow obstruction structure for a Tesla valve with an impeller, applicable to the diaphragm industry. Specifically, it includes an oven, heating rollers, a support frame, and a flow obstruction unit. The flow obstruction unit includes a flow obstruction plate, a flow obstruction shaft, and a flow obstruction impeller. Several flow obstruction grooves and flow obstruction shafts are arranged in a corresponding manner. During operation, the diaphragm passes over several sequentially arranged heating rollers, which rotate using power provided by an external motor, preferably an electrically driven motor. The diaphragm then moves through the heating rollers to the outlet of the oven and passes through the flow obstruction unit. When the diaphragm passes through the flow obstruction unit, the flow obstruction shaft begins to... The flow-blocking shaft rotates within the flow-blocking groove, driving the impeller to rotate. Dichloromethane gas carried out from the diaphragm as it exits the oven enters the flow-blocking groove. The structure of the flow-blocking groove creates a Tesla valve-like blocking effect, effectively blocking the flow of dichloromethane. Simultaneously, the rotation of the flow-blocking shaft and impeller enhances the flow-blocking effect. A flow-blocking drive belt ensures that the rotation frequency of multiple flow-blocking shafts is consistent, guaranteeing uniform flow-blocking performance across all flow-blocking grooves. This reduces the amount of gas exiting the oven, minimizing dichloromethane emissions and waste, and also reduces external air pollution. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the internal structure of the oven of the present invention;

[0019] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 3 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0022] Figure 5 This is a schematic diagram of the structure of the reflux unit of the present invention;

[0023] Figure 6 for Figure 5 A magnified view of a section at point C;

[0024] Figure 7 This is a schematic diagram of the internal structure of the oven outlet of the present invention;

[0025] Figure 8 for Figure 7 A magnified view of a section at point D;

[0026] Figure 9 for Figure 7 A magnified view of a section at point E in the middle;

[0027] Figure 10 for Figure 7 A magnified view of a section at point F in the middle;

[0028] Figure 11 This is a schematic diagram of the opening and closing unit of the present invention;

[0029] Figure 12 for Figure 11 A magnified view of a section at point G in the middle;

[0030] Figure 13 This is a schematic diagram of the structure at the junction of the reflux frame, the unlocking component, and the locking component of the present invention;

[0031] Figure 14 This is a structural schematic diagram of the second angle at the junction of the reflux frame, the unlocking component, and the locking component of the present invention.

[0032] Figure 15 This is a schematic diagram of the structure at the junction of the reflow frame and the reflow component of the present invention;

[0033] Figure 16 This is a schematic diagram of the structure at the junction of the recirculation belt and the recirculation component of the present invention;

[0034] Figure 17 for Figure 16 A magnified view of a section at point H in the middle;

[0035] Figure 18 for Figure 16 A magnified view of a section at point K;

[0036] Figure 19 for Figure 16 A magnified view of a section at point L;

[0037] Figure 20 for Figure 16 A magnified view of a section at point M;

[0038] Figure 21 This is a schematic diagram of the structure at the second angle of the junction of the recirculation belt and the recirculation component in this invention;

[0039] Figure 22 for Figure 21 A magnified view of a portion of point N in the middle;

[0040] In the diagram: 1. Oven, 2. Heating roller, 3. Support frame, 4. Baffle plate, 5. Baffle shaft, 6. Baffle impeller, 7. Baffle groove, 8. Baffle drive belt, 9. First drive belt, 10. First drive shaft, 11. Second drive shaft, 12. First gear, 13. Second gear, 14. Upper support, 15. Lower support, 16. Third drive shaft, 17. Second drive belt, 18. Third drive belt, 19. Fourth drive belt, 20. Return belt, 21. Return main shaft, 22. Return support shaft, 23. Return frame, 24. Return component, 25. Return groove, 26. Return drive belt, 27. Opening and closing motor, 28. First opening and closing shaft, 29. Second opening and closing shaft, 30. Third opening and closing shaft, 31. Bevel gear 32. Gear assembly, 33. Worm gear, 34. Fourth opening and closing shaft, 35. Fifth opening and closing shaft, 36. Sixth opening and closing shaft, 37. First swing arm, 38. Second swing arm, 39. Hinge, 40. Arc plate segment, 41. Straight plate segment, 42. Support column, 43. Locking rod, 44. First guide rod, 45. Second guide rod, 46. Magnetic block, 47. Electromagnetic column, 48. First guide groove, 49. First hinge seat, 50. First sliding rod, 51. First sliding sleeve, 52. First spring, 53. First locking pin, 54. Second hinge seat, 55. Second sliding rod, 56. Second sliding sleeve, 57. Second spring, 58. Third spring, 59. Unlocking block, 60. Unlocking rod, 61. Unlocking arc surface. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] like Figures 1-22 As shown in the figure, this embodiment proposes a gas flow obstruction structure with an impeller-type Tesla valve for use in the diaphragm industry.

[0043] A gas flow obstruction structure with impellers for Tesla valves used in the diaphragm industry includes an oven 1. Several heating rollers 2, around which diaphragms pass in sequence, are rotatably arranged inside the oven 1. A support frame 3 is provided at the outlet of the oven 1. A flow obstruction unit is provided on the support frame 3. The flow obstruction unit includes a flow obstruction plate 4, a flow obstruction shaft 5, and a flow obstruction impeller 6. The flow obstruction plate 4 is arranged on the support frame 3. A flow obstruction groove 7 is opened on the flow obstruction plate 4. The flow obstruction shaft 5 is rotatably arranged in the flow obstruction groove 7. The flow obstruction shaft 5 is rotatably connected to the support frame 3. Several flow obstruction impellers 6 are arranged at intervals on the flow obstruction shaft 5.

[0044] Furthermore, there are several flow-blocking grooves 7 and flow-blocking shafts 5, and they are set one-to-one. Any two adjacent flow-blocking shafts 5 on the support frame 3 are connected by a flow-blocking transmission belt 8.

[0045] In this embodiment, as Figures 1-12 As shown, a gas flow obstruction structure with an impeller-type Tesla valve for use in the diaphragm industry is provided. Specifically, it includes an oven 1, heating rollers 2, a support frame 3, and a flow obstruction unit. The flow obstruction unit includes a flow obstruction plate 4, a flow obstruction shaft 5, and a flow obstruction impeller 6. Several flow obstruction grooves 7 and flow obstruction shafts 5 are arranged in a corresponding manner. During operation, the diaphragm passes over several sequentially arranged heating rollers 2, which rotate using power provided by an external power unit, preferably an electrically driven motor. The diaphragm then passes through the heating rollers 2 and moves to the outlet of the oven 1, passing through the flow obstruction unit. When the diaphragm passes through the flow obstruction unit, the flow obstruction shafts 5 begin to... The flow obstruction channel 7 rotates, and the flow obstruction shaft 5 drives the flow obstruction impeller 6 to rotate. The dichloromethane gas carried out on the diaphragm when it comes out of the oven 1 will enter the flow obstruction channel 7. With the help of the structure of the flow obstruction channel 7, the gas flow in the flow obstruction channel 7 forms a Tesla valve blocking effect, thereby blocking the flow of dichloromethane gas. At the same time, the rotation of the flow obstruction shaft 5 and the flow obstruction impeller 6 will enhance the obstruction effect. With the help of the flow obstruction transmission belt 8, the rotation frequency of multiple flow obstruction shafts 5 is made consistent, ensuring the consistency of the gas obstruction effect in each flow obstruction channel 7. This reduces the gas flowing out of the oven 1 outlet, reduces the emission and waste of dichloromethane, and can also reduce external gas pollution.

[0046] Furthermore, it also includes a transmission unit, which includes a first transmission belt 9, a first transmission shaft 10, a second transmission shaft 11, a first gear 12, and a second gear 13. The first transmission shaft 10 and the second transmission shaft 11 are both rotatably mounted on the oven 1. The first gear 12 is mounted on the first transmission shaft 10, and the second gear 13 is mounted on the second transmission shaft 11. The second gear 13 is meshed with the first gear 12. The first transmission shaft 10 and the heating roller 2 are connected by transmission via the first transmission belt 9, and the second transmission shaft 11 and the flow-blocking shaft 5 are connected by transmission via the first transmission assembly.

[0047] Furthermore, the support frame 3 includes an upper support 14 and a lower support 15. The upper support 14 and the lower support 15 are both mounted on the oven 1 and symmetrically distributed on both sides of the diaphragm. Each of the upper support 14 and the lower support 15 is provided with a flow-blocking unit. The first transmission assembly includes a third transmission shaft 16, a second transmission belt 17, a third transmission belt 18, and a fourth transmission belt 19. The third transmission shaft 16 is rotatably mounted on the oven 1. The first transmission shaft 10 and the third transmission shaft 16 are connected by the second transmission belt 17. The third transmission shaft 16 and the flow-blocking shaft 5 on the upper support 14 are connected by the third transmission belt 18. The second transmission shaft 11 and the flow-blocking shaft 5 on the lower support 15 are connected by the fourth transmission belt 19.

[0048] In this embodiment, as Figures 1-12 As shown, the flow-blocking structure has been refined, and a transmission unit has been added. The transmission unit includes a first transmission belt 9, a first transmission shaft 10, a second transmission shaft 11, a first gear 12, a second gear 13, and a first transmission assembly. The first transmission assembly includes a third transmission shaft 16, a second transmission belt 17, a third transmission belt 18, and a fourth transmission belt 19. The support frame 3 includes an upper support 14 and a lower support 15. During operation, two flow-blocking units are set at the outlet of the oven 1. The two symmetrically arranged flow-blocking units simultaneously block the gas flow on both sides of the diaphragm, preventing the diaphragm from carrying out dichloromethane gas from the oven 1 when it is removed from the oven 1. This reduces the emission and waste of dichloromethane gas and avoids the environmental pollution that dichloromethane gas may cause. When the diaphragm is heated on the heating roller 2, the heating roller 2 rotates with the power provided by an external power unit. When the heating roller 2 moves, it sequentially drives the first transmission belt 9, the first transmission shaft 10, the first gear 12, the second gear 13, and the second transmission shaft 11 to rotate. At the same time, when the first transmission shaft 10 rotates, it drives the third transmission shaft 16 to rotate via the second transmission belt 17. At this time, the rotation directions of the second transmission shaft 11 and the third transmission shaft 16 are opposite. The second transmission shaft 11 drives the flow-blocking shaft 5 on the lower support 15 to rotate via the fourth transmission belt 19. The rotation direction is defined as forward rotation. The third transmission shaft 16 drives the flow-blocking shaft 5 on the upper support 14 to rotate via the third transmission belt 18. The rotation direction is reverse rotation. With the help of the third transmission belt 18 and the fourth transmission belt 19, the two flow-blocking units work simultaneously. The gas emitted from the gap between the outlet of the oven 1 and both sides of the diaphragm will not be emitted into the external environment due to the action of the flow-blocking units.

[0049] Furthermore, it also includes a reflux unit, which includes a reflux belt 20, a reflux main shaft 21, a reflux support shaft 22, and a reflux frame 23. The reflux frame 23 is disposed in the chamber. The reflux main shaft 21 and the reflux support shaft 22 are both rotatably mounted on the reflux frame 23. The reflux belt 20 is sleeved on the reflux main shaft 21 and the reflux support shaft 22. Several reflux components 24 are spaced apart on the reflux belt 20, and reflux grooves 25 are opened on the reflux components 24.

[0050] Furthermore, there are two reflux units symmetrically distributed on both sides of the diaphragm. The reflux unit also includes a reflux drive belt 26. There are two reflux drive belts 26. One reflux drive belt 26 is mounted on a reflux main shaft 21 and a second drive shaft 11, and the other reflux drive belt 26 is mounted on another reflux main shaft 21 and a third drive shaft 16.

[0051] In this embodiment, as Figures 1-12As shown, a reflux unit is added, which includes a reflux belt 20, a reflux main shaft 21, a reflux support shaft 22, a reflux frame 23, and a reflux transmission belt 26. Preferably, there are two reflux units and two reflux transmission belts 26, located on opposite sides of the diaphragm. During operation, under the action of an external power unit, the heating roller 2 begins to rotate. The heating roller 2 sequentially drives the first transmission belt 9, the first transmission shaft 10, the first gear 12, the second gear 13, and the second transmission shaft 11 to rotate. Simultaneously, when the first transmission shaft 10 rotates, it drives the third transmission shaft 16 to rotate via the second transmission belt 17. The second drive shaft 11 and the third drive shaft 16 rotate in opposite directions. The second drive shaft 11 drives the first return main shaft 21 to rotate via the first return drive belt 26. The direction of rotation of this return main shaft 21 is defined as forward rotation. The third drive shaft 16 drives the second return main shaft 21 to rotate via the second return drive belt 26. At this time, the direction of rotation of the second return main shaft 21 is reverse rotation. With the help of the transmission unit, the return units on both sides of the diaphragm work simultaneously, confining the dichloromethane gas volatilized from the diaphragm within the cavity of the oven 1, preventing the dichloromethane gas from escaping to the outside of the oven 1. When the return main shaft 21 rotates, it drives the return belt 20 to move in a cycle. When the return belt 20 moves, it drives the return component 24 to move in the same direction. The return component 24 has a return groove 25. The return groove 25 on the return component 24, using the principle of a Tesla valve, guides the gas escaping from the diaphragm that is about to reach the outlet of the oven 1 back into the cavity of the oven 1, preventing the gas from escaping.

[0052] Furthermore, it also includes an opening and closing unit, which includes an opening and closing motor 27, a first opening and closing shaft 28, a second opening and closing shaft 29, and a third opening and closing shaft 30. The opening and closing motor 27 is mounted on the oven 1. The first opening and closing shaft 28 passes through the side wall of the oven 1 and is fixedly connected to the output shaft of the opening and closing motor 27. The second opening and closing shaft 29 and the third opening and closing shaft 30 are both rotatably mounted in the cavity. The rotation center lines of the first opening and closing shaft 28 and the second opening and closing shaft 29 are perpendicular to each other, and the rotation center lines of the second opening and closing shaft 29 and the third opening and closing shaft 30 are perpendicular to each other. The first opening and closing shaft 28 and the second opening and closing shaft 29, and the second opening and closing shaft 29 and the third opening and closing shaft 30 are all connected by bevel gear pair 31. The third opening and closing shaft 30 is threadedly connected to the return frame 23.

[0053] Furthermore, the opening and closing unit also includes a worm gear 32, a worm wheel 33, a fourth opening and closing shaft 34, a fifth opening and closing shaft 35, a sixth opening and closing shaft 36, a first swing arm 37, and a second swing arm 38. The worm gear 32 is mounted on the second opening and closing shaft 29. The fourth, fifth, and sixth opening and closing shafts 34, 35, and 36 are all rotatably mounted on the oven 1. The worm wheel 33 is mounted on the fourth opening and closing shaft 34. The worm gear 32 and worm wheel 33 are meshed together. The two ends of the fifth opening and closing shaft 35 are respectively connected to the fourth and sixth opening and closing shafts 34 and 36 via a bevel gear pair 31. The first swing arm 37 is mounted on the sixth opening and closing shaft 36. Both sides of the first swing arm 37 are hinged to a second swing arm 38. One second swing arm 38 is hinged to the upper support 14, and the other second swing arm 38 is hinged to the lower support 15. The upper support 14 and the lower support 15 are rotatably connected to the oven 1 via hinges 39.

[0054] In this embodiment, as Figures 1-12 As shown, an opening and closing unit has been added, which includes an opening and closing motor 27, a first opening and closing shaft 28, a second opening and closing shaft 29, and a third opening and closing shaft 30; the opening and closing unit also includes a worm gear 32, a worm wheel 33, a fourth opening and closing shaft 34, a fifth opening and closing shaft 35, a sixth opening and closing shaft 36, a first swing rod 37, and a second swing rod 38; during operation, the starting end of the diaphragm needs to be pulled from the inlet to the outlet of the oven 1 to facilitate the continuous operation of the diaphragm. When the diaphragm is pulled, the electrically driven opening and closing motor 27 is started. The opening and closing motor 27 drives the first opening and closing shaft 28 to rotate. The first opening and closing shaft 28 drives the second opening and closing shaft 29, the second bevel gear pair 31, and the third opening and closing shaft 30 to rotate in sequence through the first bevel gear pair 31. The third opening and closing shaft 30 is equipped with a double-acting lead screw, and the threads on the left and right sides of the third opening and closing shaft 30 have opposite screw directions. Two return frames 23 are respectively threaded to both sides of the third opening and closing shaft 30. When the third opening and closing shaft 30 rotates, the two return frames 23 move closer to each other. Or they move away from each other; at the same time, when the second opening and closing shaft 29 rotates, it will drive the worm gear 33 to rotate in the same direction. With the meshing transmission between the worm gear 33 and the worm 32, the second opening and closing shaft 29 will eventually drive the fourth opening and closing shaft 34 to rotate; with the sequential transmission of the third bevel gear pair 31, the fifth opening and closing shaft 35 and the fourth bevel gear pair 31, the fourth opening and closing shaft 34 will drive the sixth opening and closing shaft 36 to rotate. When the sixth opening and closing shaft 36 rotates, it will drive the first swing rod 37 to rotate in the same direction. When the first swing rod 37 rotates, it will drive the two second swing rods 38 to rotate on the upper support 14 and the lower support 15 respectively; as the first swing rod 37 rotates, the second swing rods 38 will eventually drive the upper support 14 and the lower support 15 to rotate on different hinges 39 respectively, so that the upper support 14 and the lower support 15 move away from each other. With the help of the opening and closing unit, the flow blocking unit and the return unit are separated from each other, which makes it convenient for the operator to pull the diaphragm out of the oven 1 and reduces the workload and difficulty of diaphragm traction.

[0055] Furthermore, the return component 24 includes an arc plate section 40, a straight plate section 41, and a support column 42. The support column 42 is disposed on the return belt 20. The arc plate section 40 and the straight plate section 41 are rotatably disposed on the support column 42. The flow obstruction groove 7 is disposed on the arc plate section 40. The straight plate section 41 is provided with a locking rod 43. The return unit also includes a locking assembly and an unlocking assembly. The locking assembly includes a first guide rod 44, a second guide rod 45, a magnet 46, an electromagnetic column 47, a first guide groove 48, a first hinge seat 49, a first sliding rod 50, a first sliding sleeve 51, a first spring 52, and a first locking pin 53. The first guide rod 44 is disposed on the return frame 23 and located on one side of the return support shaft 22. The first guide rod 44 is slidably connected to the locking rod 43. The second guide rod 45 is disposed on the return frame 23 and located on one side of the return support shaft 22. The second guide rod 45 is slidably connected to the arc plate section 41. The side of segment 40 away from the support column 42 is slidably connected. The magnetic block 46 is set on the arc plate segment 40, and the electromagnetic column 47 is set on the return belt 20. The electromagnetic column 47 abuts against or separates from the magnetic block 46. The first guide groove 48 is set on the side of the straight plate segment 41 away from the arc plate segment 40. The first hinge seat 49 is slidably set in the first guide groove 48. The first sliding sleeve 51 is set on the return belt 20. The first sliding rod 50 is oscillatingly set on the first hinge seat 49 and slidably connected to the first sliding sleeve 51. The first sliding rod 50 is provided with a first locking hole, and the first sliding sleeve 51 is provided with a second locking hole. When the first locking hole and the second locking hole coincide, the first locking pin 53 is inserted into the first locking hole and the second locking hole. The first spring 52 is sleeved on the first locking pin 53, and the two ends of the first spring 52 act on the first sliding sleeve 51 and the first locking pin 53 respectively.

[0056] Furthermore, the unlocking assembly includes a second hinge seat 54, a second sliding rod 55, a second sliding sleeve 56, a second spring 57, a third spring 58, an unlocking block 59, and an unlocking rod 60. The first hinge seat 49 is disposed on the side of the arc plate segment 40 away from the straight plate segment 41. The second sliding sleeve 56 is rotatably disposed on the support column 42. The second sliding rod 55 is hinged to the second hinge seat 54 and slidably connected to the second sliding sleeve 56. The second spring 57 is sleeved on the second sliding rod 55, and the two ends of the second spring 57 act on the second sliding rod 55 and the second sliding sleeve 56, respectively. The third spring 58 is sleeved on the first sliding rod 50, and the two ends of the third spring 58 act on the first sliding rod 50 and the first sliding sleeve 51, respectively. The unlocking rod 60 is disposed on the first locking pin 53. The unlocking block 59 is disposed on the return frame 23. The unlocking block 59 is provided with an unlocking arc surface 61, and the unlocking rod 60 slides in contact with the unlocking arc surface 61.

[0057] In this embodiment, as Figures 1-2 and Figures 13-22As shown, the return component 24 has been refined. The return component 24 includes an arc plate section 40, a straight plate section 41, and a support column 42. The straight plate section 41 forms an angle with the surface of the return belt 20, defined as a positive acute angle. A locking assembly and an unlocking assembly have also been added. The locking assembly includes a first guide rod 44, a second guide rod 45, a magnet 46, an electromagnetic column 47, a first guide groove 48, a first hinge seat 49, a first sliding rod 50, a first sliding sleeve 51, a first spring 52, and a first locking pin 53. The unlocking assembly includes a second hinge seat 54, a second sliding rod 55, a second sliding sleeve 56, a second spring 57, a third spring 58, an unlocking block 59, and an unlocking rod 60. In use, the return transmission belt 26 drives the return main shaft 21 to rotate. When the return spindle 21 rotates, it drives the return belt 20 to move in a cycle, and the return belt 20 drives the return component 24 to move synchronously. When the return component 24 moves away from the diaphragm, the locking rod 43 on the straight section 41 will first make pressing contact with the first guide rod 44. The first guide rod 44 is arc-shaped. With the guidance of the first guide rod 44, the straight section 41 starts to rotate away from the arc section 40. As the straight section 41 rotates, the straight section 41 will rotate in the same direction with the first guide groove 48 and the first hinge seat 49. When the first guide groove 48 rotates, it will push the first sliding rod 50 to slide in the first sliding sleeve 51. At the same time, with the fixed connection between the first sliding sleeve 51 and the return belt 20, the first sliding rod 50 will move in the first sliding sleeve 51. The first hinge 49 slides within the first guide groove 48 while the first locking hole and the second locking hole coincide. Under the action of the first spring 52, the first locking pin 53 passes through the second locking hole and enters the first locking hole, fixing the first sliding rod 50 and the first sliding sleeve 51 together. At this time, the angle between the straight plate section 41 and the surface of the return belt 20 is a negative acute angle. When the first sliding rod 50 slides within the first sliding sleeve 51, it will compress the third spring 58, causing the third spring 58 to contract and accumulate elastic force. Then, the locking rod 43 separates from the first guide rod 44. Then, the support column 42, the arc plate section 40, and the straight plate section 41 continue to move in the same direction. At this time, the arc plate section 40 gradually approaches the second guide rod 44. 5. When the two plates are pressed together, the arc plate segment 40 rotates away from the straight plate segment 41 under the pressing action of the second guide rod 45. When the arc plate segment 40 rotates, it will drive the second hinge seat 54 and the magnetic block 46 to rotate together in the same direction. When the second hinge seat 54 rotates, it will drive the second sliding rod 55 to rotate on the second hinge seat 54. At this time, the second sliding rod 55 will slide in the second sliding sleeve 56 and press the second spring 57. The second spring 57 will be compressed and accumulate elastic force. When the second sliding rod 55 rotates on the second hinge seat 54, it will drive the second sliding sleeve 56 to rotate on the support column 42. Until the magnetic block 46 and the electromagnetic column 47 are attracted together, the arc plate segment 40 is fixed in place, and the electromagnetic column 47 provides magnetic attraction with the help of external power.

[0058] With the help of the locking assembly, the arc plate segment 40 and the straight plate segment 41 rotate towards the return belt 20, breaking the Tesla valve effect formed on the return component 24; allowing the gas in the oven 1 to mix normally; as the return belt 20 continues to move, it will bring the first guide sleeve, the first locking pin 53 and the unlocking rod 60 closer to the unlocking block 59, until the unlocking rod 60 makes contact with the unlocking arc on the unlocking block 59. As the unlocking rod 60 slides on the unlocking arc surface 61, it will drive the first locking pin 53 to exit from the first locking hole and the second locking hole in sequence. When the first locking pin 53 moves, it will stretch the first spring 52, and the first spring 52 will accumulate elastic force; as the first locking pin 53 separates from the first locking hole, the third spring 58 releases the accumulated elastic force. Under the action of the third spring 58, the first sliding rod 50 slides away from the first sliding sleeve 51 until the third spring 58 returns to its initial position. In the initial state, the straight plate segment 41 returns to its initial position under the pushing action of the first sliding rod 50. When the unlocking rod 60 is pressed against the unlocking arc surface 61, the micro switch built into the unlocking block 59 cuts off the power to the electromagnetic column 47, and the electromagnetic attraction of the electromagnetic column 47 disappears. At this time, the second spring 57 releases the stored elastic force. Under the action of the second spring 57, the second sliding rod 55 slides towards the arc plate segment 40 in the second sliding sleeve 56. The arc plate segment 40 rotates away from the return belt 20 under the pushing action of the second sliding rod 55 until the arc plate segment 40 returns to its initial position. After the unlocking rod 60 separates from the unlocking arc surface 61, the electromagnetic column 47 is re-energized. At this time, the straight plate segment 41, the arc plate segment 40 and the support column 42, which have returned to their initial positions, once again form the Tesla valve flow-blocking effect, and then block the gas on the diaphragm surface when the diaphragm moves, reducing the emission and waste of dichloromethane gas, and at the same time reducing external gas pollution. With the help of the unlocking and locking components, the return component 24 on the return belt 20 is ensured to only obstruct the gas flow on the diaphragm surface and not affect the gas flow inside the oven 1.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas flow blocking structure of a Tesla valve with an impeller applied to the diaphragm industry, comprising an oven (1), a plurality of heating rollers (2) are arranged in the cavity of the oven (1) and rotate, and the diaphragm sequentially passes through the heating rollers (2), characterized in that, The outlet of the oven (1) is provided with a support frame (3), the support frame (3) is provided with a flow resistance unit, the flow resistance unit comprises a flow resistance plate (4), a flow resistance shaft (5) and a flow resistance impeller (6), the flow resistance plate (4) is arranged on the support frame (3), the flow resistance plate (4) is provided with a flow resistance groove (7), the flow resistance shaft (5) is rotatably arranged in the flow resistance groove (7), the flow resistance shaft (5) is rotatably connected with the support frame (3), and a plurality of flow resistance impellers (6) are arranged on the flow resistance shaft (5) at intervals.

2. The gas flow blocking structure of the impeller type Tesla valve applied to the diaphragm industry according to claim 1, characterized in that, The number of the flow resistance grooves (7) and the flow resistance shafts (5) is several and they are arranged one by one, and any two adjacent flow resistance shafts (5) on the support frame (3) are drivingly connected through a flow resistance transmission belt (8).

3. The gas flow blocking structure of the impeller type Tesla valve applied to the diaphragm industry according to claim 1, characterized in that, It also comprises a transmission unit, the transmission unit comprises a first transmission belt (9), a first transmission shaft (10), a second transmission shaft (11), a first gear (12) and a second gear (13), the first transmission shaft (10) and the second transmission shaft (11) are rotatably arranged on the oven (1), the first gear (12) is arranged on the first transmission shaft (10), the second gear (13) is arranged on the second transmission shaft (11), the second gear (13) is meshingly connected with the first gear (12), the first transmission shaft (10) and the heating roller (2) are drivingly connected through the first transmission belt (9), and the second transmission shaft (11) and the flow resistance shaft (5) are drivingly connected through a first transmission assembly.

4. The gas flow blocking structure of the impeller type Tesla valve applied to the diaphragm industry according to claim 3, characterized in that, The support frame (3) comprises an upper support (14) and a lower support (15), the upper support (14) and the lower support (15) are arranged on the oven (1) and symmetrically distributed on both sides of the diaphragm, one flow resistance unit is arranged on the upper support (14) and the lower support (15) respectively, the first transmission assembly comprises a third transmission shaft (16), a second transmission belt (17), a third transmission belt (18) and a fourth transmission belt (19), the third transmission shaft (16) is rotatably arranged on the oven (1), the first transmission shaft (10) and the third transmission shaft (16) are drivingly connected through the second transmission belt (17), the third transmission shaft (16) and the flow resistance shaft (5) on the upper support (14) are drivingly connected through the third transmission belt (18), and the second transmission shaft (11) and the flow resistance shaft (5) on the lower support (15) are drivingly connected through the fourth transmission belt (19).

5. The gas flow blocking structure of the impeller type Tesla valve applied to the diaphragm industry according to claim 4, characterized in that, The reflow unit comprises a reflow belt (20), a reflow main shaft (21), a reflow support shaft (22) and a reflow frame (23), the reflow frame (23) is arranged in the chamber, the reflow main shaft (21) and the reflow support shaft (22) are both rotationally arranged on the reflow frame (23), the reflow belt (20) is sleeved on the reflow main shaft (21) and the reflow support shaft (22), and a plurality of reflow pieces (24) are arranged on the reflow belt (20) at intervals.

6. A gas flow blocking structure of an impeller type Tesla valve applied to the diaphragm industry according to claim 5, characterized in that, The number of the reflow units is two and they are symmetrically distributed on the two sides of the diaphragm, the reflow unit further comprises a reflow transmission belt (26), the number of the reflow transmission belt (26) is two, one of the reflow transmission belt (26) is sleeved on one of the reflow main shaft (21) and the second transmission shaft (11), and the other of the reflow transmission belt (26) is sleeved on the other of the reflow main shaft (21) and the third transmission shaft (16).

7. The gas flow blocking structure of the impeller type Tesla valve applied to the diaphragm industry according to claim 6, characterized in that, The opening and closing unit comprises an opening and closing motor (27), a first opening and closing shaft (28), a second opening and closing shaft (29) and a third opening and closing shaft (30), the opening and closing motor (27) is arranged on the oven (1), the first opening and closing shaft (28) penetrates through the side wall of the oven (1) and is fixedly connected with the output shaft of the opening and closing motor (27), the second opening and closing shaft (29) and the third opening and closing shaft (30) are both rotationally arranged in the chamber, the center lines of rotation of the first opening and closing shaft (28) and the second opening and closing shaft (29) are perpendicular to each other, the center lines of rotation of the second opening and closing shaft (29) and the third opening and closing shaft (30) are perpendicular to each other, the first opening and closing shaft (28) and the second opening and closing shaft (29) are in transmission connection through a bevel gear pair (31), and the third opening and closing shaft (30) is in threaded connection with the reflow frame (23).

8. The gas flow blocking structure of the impeller type Tesla valve applied to the diaphragm industry according to claim 7, characterized in that, The opening and closing unit further comprises a worm (32), a worm wheel (33), a fourth opening and closing shaft (34), a fifth opening and closing shaft (35), a sixth opening and closing shaft (36), a first swing lever (37) and a second swing lever (38), the worm (32) is arranged on the second opening and closing shaft (29), the fourth opening and closing shaft (34), the fifth opening and closing shaft (35) and the sixth opening and closing shaft (36) are all rotationally arranged on the oven (1), the worm wheel (33) is arranged on the fourth opening and closing shaft (34), the worm (32) and the worm wheel (33) are meshingly connected, the fifth opening and closing shaft (35) is drivingly connected with the fourth opening and closing shaft (34) and the sixth opening and closing shaft (36) through the bevel gear pair (31) at both ends, the first swing lever (37) is arranged on the sixth opening and closing shaft (36), the first swing lever (37) is hingedly connected with one second swing lever (38) at both sides, one second swing lever (38) is hingedly connected with the upper support (14), and the other second swing lever (38) is hingedly connected with the lower support (15), the upper support (14) and the lower support (15) are rotationally connected with the oven (1) through hinges (39).

9. The gas flow blocking structure of the impeller type Tesla valve applied to the diaphragm industry according to claim 5, characterized in that, The backflow part (24) comprises an arc plate section (40), a straight plate section (41) and a support column (42), the support column (42) is arranged on the backflow belt (20), the arc plate section (40) and the straight plate section (41) are respectively arranged on the support column (42) in a rotating mode, the backflow groove (7) is arranged on the arc plate section (40), a locking rod (43) is arranged on the straight plate section (41), the backflow unit further comprises a locking assembly and an unlocking assembly, the locking assembly comprises a first guide rod (44), a second guide rod (45), a magnetic block (46), an electromagnetic column (47), a first guide groove (48), a first hinged seat (49), a first sliding rod (50), a first sliding sleeve (51), a first spring (52) and a first locking pin (53), the first guide rod (44) is arranged on the backflow frame (23) and located on one side of the backflow support shaft (22), the first guide rod (44) is in sliding connection with the locking rod (43), the second guide rod (45) is arranged on the backflow frame (23) and located on one side of the backflow support shaft (22), the second guide rod (45) is in sliding connection with one side of the arc plate section (40) away from the support column (42), the magnetic block (46) is arranged on the arc plate section (40), the electromagnetic column (47) is arranged on the backflow belt (20), the electromagnetic column (47) is in contact or separation with the magnetic block (46), the first guide groove (48) is arranged on one side of the straight plate section (41) away from the arc plate section (40), the first hinged seat (49) is arranged in the first guide groove (48) in a sliding mode, the first sliding sleeve (51) is arranged on the backflow belt (20), the first sliding rod (50) is arranged on the first hinged seat (49) in a swinging mode and in sliding connection with the first sliding sleeve (51), a first locking hole is arranged on the first sliding rod (50), a second locking hole is arranged on the first sliding sleeve (51), when the first locking hole and the second locking hole coincide, the first locking pin (53) is inserted into the first locking hole and the second locking hole, the first spring (52) is sleeved on the first locking pin (53), two ends of the first spring (52) are respectively applied to the first sliding sleeve (51) and the first locking pin (53).

10. The gas flow blocking structure of the impeller type Tesla valve applied to the diaphragm industry according to claim 9, characterized in that, The unlocking assembly comprises a second hinged seat (54), a second sliding rod (55), a second sliding sleeve (56), a second spring (57), a third spring (58), an unlocking block (59) and an unlocking rod (60); the first hinged seat (49) is arranged on the arc plate section (40) away from the straight plate section (41); the second sliding sleeve (56) is rotationally arranged on the support column (42); the second sliding rod (55) is hingedly arranged on the second hinged seat (54) and is in sliding connection with the second sliding sleeve (56); the second spring (57) is sleeved on the second sliding rod (55); the two ends of the second spring (57) are respectively applied to the second sliding rod (55) and the second sliding sleeve (56); the third spring (58) is sleeved on the first sliding rod (50); the two ends of the third spring (58) are respectively applied to the first sliding rod (50) and the first sliding sleeve (51); the unlocking rod (60) is arranged on the first lock pin (53); the unlocking block (59) is arranged on the backflow frame (23); the unlocking block (59) is provided with an unlocking arc surface (61); and the unlocking rod (60) is in sliding contact with the unlocking arc surface (61).

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