Mute type flexible automatic door and lifting method

Abstract

The invention belongs to the technical field of automatic doors, and discloses a mute type flexible automatic door and a lifting method.The automatic door comprises guide rails fixed in a door opening and a shell fixed to the tops of the guide rails, the two guide rails are symmetrically distributed relative to the shell, and a spiral plate used for containing a curtain plate is fixed between the inner walls of the two ends of the shell; a control mechanism is arranged in the shell and the guide rail jointly and comprises a main lifting assembly used for controlling the curtain plate to ascend and descend and a magnetic suspension assembly used for keeping the distance between the curtain plate and the guide rail to prevent collision. In the process that the main lifting assembly is used for controlling the curtain plate to ascend and descend, the magnetic suspension assembly can keep the distance between the curtain plate and the guide rail so as to prevent collision, the defect that in the prior art, the curtain plate easily collides with the guide rail, and consequently noise is generated is overcome, and the use experience of a user can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic door, in particular to a mute flexible automatic door and lifting method. BACKGROUND

[0002] The roller shutter door is a multi-joint activity door piece in series, in the fixed slide, with the door shaft as the center, the door is up and down, the roller shutter door is widely used in stores. The roller shutter door plays the role of horizontal separation like the wall, which usually includes a guide rail fixed in the door hole, a housing fixed on the top of the guide rail, a roller shaft rotatably installed in the housing, and a curtain plate connected with the roller shaft and fixed at one end. The housing is provided with a manual control assembly for controlling the rotation of the roller shaft to move the curtain plate.

[0003] In the prior art, in order to enhance the automaticity of the roller shutter door, a motor is arranged in the housing at the top of the door hole for driving the roller shaft to rotate. After the roller shaft is driven to rotate by the motor, the curtain plate fixed at one end of the roller shaft can be wound or lowered on the roller shaft, so as to achieve the purpose of closing or opening the door. However, in the process of lifting the curtain plate along the guide rail, the curtain plate is easy to collide and rub with the guide rail, thereby generating a large noise. SUMMARY

[0004] In order to solve the above problems, the present application provides a mute flexible automatic door and lifting method.

[0005] The above technical purpose of the present application is achieved by the following technical scheme: a mute flexible automatic door, including a guide rail fixed in the door hole and a housing fixed on the top of the guide rail, the guide rail is provided with two and symmetrically distributed about the housing, the inner wall between the two ends of the housing is fixed with a spiral plate for receiving the curtain plate, the housing and the guide rail are jointly provided with a control mechanism, the control mechanism includes a main lifting assembly for controlling the lifting of the curtain plate and a magnetic suspension assembly for keeping the distance between the curtain plate and the guide rail to prevent collision.

[0006] By adopting the above technical scheme, in the process of using the main lifting assembly to control the lifting of the curtain plate, the magnetic suspension assembly can keep the distance between the curtain plate and the guide rail to prevent collision, which changes the defect that the curtain plate is easy to collide with the guide rail in the traditional technology and generates noise, and is beneficial to improve the user experience.

[0007] Further, the cross section of the guide rail is U-shaped, the opening sides of the two guide rails are oppositely arranged, the curtain plate comprises a plurality of alternately arranged plate bodies and flexible connecting strips, the lower surface of the plate body at the bottom of the curtain plate is fixed with a counterweight, the magnetic suspension assembly comprises a first magnetic block fixed to the inner wall of one side of the guide rail, a second magnetic block fixed to the inner wall of the other side of the guide rail, and a ring-shaped electromagnet embedded in the plate body and corresponding to the position of the second magnetic block, the length direction of the first magnetic block and the second magnetic block is vertical and the magnetism is opposite, the magnetism of the side of the ring-shaped electromagnet close to the first magnetic block is opposite to that of the first magnetic block, and the magnetism of the side of the ring-shaped electromagnet close to the second magnetic block is opposite to that of the second magnetic block, and the corresponding ring-shaped electromagnet of each plate body is provided with two and located close to the two ends of the curtain plate.

[0008] By adopting the above technical scheme, in the process of controlling the curtain plate to rise and fall by the main lifting assembly, because the magnetism of the two sides of the ring-shaped electromagnet is opposite, and the magnetism of the side of the ring-shaped electromagnet close to the first magnetic block is opposite to that of the first magnetic block, and the magnetism of the side of the ring-shaped electromagnet close to the second magnetic block is opposite to that of the second magnetic block, so that the distance between the curtain plate and the inner side of the guide rail is kept constant during the lifting process, avoiding the contact between the curtain plate and the guide rail to generate large friction and noise.

[0009] Further, the side walls of the counterweight are fixed with a pair of connecting plates close to the bottom, a guide wheel is rotatably installed between the two connecting plates, and a vertical rolling groove is arranged on the inner wall of the guide rail for rolling connection of the guide wheel, and the plate bodies close to the top of the curtain plate are also provided with connecting plates and guide wheels in the same way.

[0010] By adopting the above technical scheme, the guide wheel is in rolling connection with the vertical rolling groove, which plays a good guiding role in the descent of the counterweight and the curtain plate, reduces the shaking of the curtain plate, and ensures the stability of the curtain plate during the descent.

[0011] Further, the inner walls of the two ends of the shell are rotatably installed with driving rods, the driving rods are provided with two and symmetrically distributed on the two sides of the curtain plate, the main lifting assembly comprises a main lifting unit, the main lifting unit is provided with two groups and symmetrically distributed on the two sides of the curtain plate, the main lifting unit comprises a driving shaft fixedly sleeved on the driving rod and a ring-shaped air bag fixedly sleeved on the driving shaft, the outer wall of the ring-shaped air bag is abutted against the surface of the plate body, and the main lifting assembly further comprises a main driving unit for controlling the synchronous rotation of the two driving rods.

[0012] By adopting the above technical scheme, the main driving unit can control the synchronous rotation of the two driving rods, so that the driving rod and the ring-shaped air bag rotate synchronously, and the ring-shaped air bags on the two sides of the curtain plate rotate in opposite directions, thereby controlling the lifting of the curtain plate.

[0013] Further, the annular air bag is internally provided with a plurality of first air bags and second air bags arranged alternately, the volume of the first air bag is greater than that of the second air bag, the first air bag and the second air bag share a wall, and the first air bag and the second air bag are provided with a communication hole in communication with each other.

[0014] By adopting the above technical scheme, in the process of abutting the annular air bag against the curtain plate and lowering the curtain plate, due to the fact that the surface flatness of the plate body and the flexible connecting strip is inconsistent and the volume of the first air bag is greater than that of the second air bag, the communication hole is in communication between the first air bag and the second air bag, so that the first air bag and the second air bag cooperate and abut against the plate body and the flexible connecting strip alternately, thereby controlling the curtain plate to be smoothly lifted and lowered.

[0015] Further, the outer wall of one end of the shell is fixed with a mounting shell, one end of the driving rod penetrates through the shell and extends into the mounting shell, the main driving unit comprises a worm rotatingly installed on the bottom wall in the mounting shell, a worm wheel fixed to the end of the driving rod and meshing with the worm, a driven gear fixedly sleeved on the worm, a driving rod rotatingly installed on the bottom wall in the mounting shell, a driving gear fixedly sleeved on the driving rod and meshing with the driven gear, and a driving member arranged in the mounting shell and driving the driving rod to rotate, the worm, the worm wheel and the driven gear are all provided with two and symmetrically arranged, and the driving member is a motor fixed to the inner wall of the mounting shell.

[0016] By adopting the above technical scheme, the motor drives the driving rod fixed to the output end thereof to rotate after working, so that the driving gear fixed to the driving rod, the driven gear meshing with the driving gear, the worm fixed to the driven gear, the driving rod fixed to the worm and the worm wheel meshing with the worm are all rotated, thereby synchronously rotating the worm wheels and the driving rods on both sides of the curtain plate, synchronously rotating the annular air bags on both sides and reversing the rotation directions (the rotation directions of the worm and the worm wheel can be controlled), and further controlling the curtain plate to be lifted and lowered, thereby achieving the purpose of opening or closing the automatic door.

[0017] Further, the other end of the shell is provided with a standby shell, the other end of the driving rod penetrates through the shell and extends into the standby shell, and the standby shell is provided with a standby driving assembly, the structure of the standby driving assembly is the same as that of the main driving unit, and the standby driving assembly is symmetrically arranged with the main driving unit about the shell, and the driving member in the standby driving assembly is a hand rod penetratingly arranged at the bottom of the standby shell and rotatingly connected, the upper end of the hand rod is fixed with the lower end of one of the worms in the standby driving assembly, and the lower end of the hand rod extends to the middle lower part of the guide rail and is fixed with a handle.

[0018] By adopting the above technical scheme, when power fails, the staff only needs to hold the handle and rotate the hand rod, so that the worm fixed to the hand rod is rotated, and according to the above analysis, the worm wheels and the driving rods on both sides of the curtain plate are synchronously rotated, thereby achieving the purpose of driving the curtain plate to be lifted and lowered by the annular air bags on both sides.

[0019] Further, the guide rail is provided with a sealing assembly for keeping the sealing between the guide rail and the curtain plate, the sealing assembly comprises a sealing air bag fixed at a position close to the opening of the inner wall of the guide rail, an inflation pipe fixed to the side wall of the sealing air bag and communicated with the sealing air bag, the side wall of the guide rail is provided with an installation hole for installing the inflation pipe, the sealing air bag and the inflation pipe are both provided with two and symmetrically distributed on both sides of the housing, the sealing assembly further comprises a gas distribution pipe fixed to the inflation pipe and communicated with the inflation pipe, a gas supply pipe fixed to the gas distribution pipe and communicated with the gas distribution pipe and an external inflation system, an exhaust pipe fixed to the side wall of the gas supply pipe and communicated with the gas supply pipe, and an electromagnetic valve arranged on the exhaust pipe, the gas distribution pipe is communicated with the inflation pipes on both sides, and the side away from the inner wall of the guide rail of the sealing air bag is tightly abutted with the surface of the plate body and the surface of the flexible connecting strip after the sealing air bag is inflated.

[0020] By adopting the above technical scheme, in order to ensure the sound insulation effect during the closing process of the automatic door, the staff only needs to inflate the gas supply pipe through the external inflation system, and then inflate the gas distribution pipe, the inflation pipe and the sealing air bag in turn, and the surface of the sealing air bag is tightly abutted with the surface of the plate body, the surface of the flexible connecting strip and the surface of the counterweight after the sealing air bag is inflated, so as to ensure the sealing between the guide rail and the curtain plate and ensure the sound insulation effect of the automatic door.

[0021] Further, the bottom of the sealing air bag is flush with the bottom of the guide rail, and the top of the sealing air bag is flush with the top of the guide rail and the bottom of the housing.

[0022] The application also discloses a lifting method of the silent flexible automatic door, which comprises the following steps: S1, when controlling the curtain plate to descend, the staff only needs to control the rotation of the driving rod through the motor connected with the controller of the automatic door, so that the driving gear fixed with the driving rod, the driven gear engaged with the driving gear, the worm fixed with the driven gear, the worm wheel engaged with the worm, the driving rod fixed with the worm wheel, the driving shaft fixed with the driving rod and the annular air bag fixed with the driving shaft are all rotated, since the outer wall of the annular air bag is tightly abutted with the curtain plate, the annular air bag has first air bags and second air bags with different volumes, and the communication holes communicate the first air bags with the second air bags, so that the curtain plate composed of the plate body and the flexible connecting strip is kept rising or descending under the cooperation of the first air bags and the second air bags, and the stability of the curtain plate during the lifting process is kept under the cooperation of the magnetic suspension assembly and the counterweight, and the probability of noise caused by collision during the lifting process of the curtain plate is reduced; S2, after the curtain plate is closed, in order to ensure the sound insulation effect of the automatic door, the user only needs to control the external inflation system through the controller to inflate the sealing air bag in the gas supply pipe, the gas distribution pipe and the inflation pipe in turn, until the sealing air bag is inflated and tightly abutted with the surface of the plate body and the surface of the flexible connecting strip, so as to ensure the sealing between the guide rail and the curtain plate and ensure the sound insulation effect of the automatic door; S3, when the curtain plate needs to be opened, the controller only needs to control the motor to operate in reverse. S4, when encountering power failure, the user only needs to use the ratchet to rotate the worm through the hand rod, so that the worm gear meshing with the worm and the drive rod fixed with the worm gear rotate, and then the drive shaft and the annular air bag rotate, so that the curtain plate can be lifted and lowered, and the normal use of the automatic door is ensured.

[0023] By adopting the above technical scheme, the noise reduction characteristics during the opening or closing of the curtain plate and the silence after the closing of the curtain plate are ensured.

[0024] In summary, the present application has the following advantages: 1. In the present application, the magnetic suspension assembly can maintain the distance between the curtain plate and the guide rail during the process of controlling the lifting of the curtain plate by the main lifting assembly, thereby preventing collision and changing the defect that the curtain plate is prone to collide with the guide rail in the traditional technology, thereby generating noise, which is beneficial to improve the user experience; 2. In the present application, during the process of controlling the lifting of the curtain plate by the main lifting assembly, the magnetism on both sides of the annular electromagnet is opposite, and the magnetism on the side of the annular electromagnet close to the first magnetic block is opposite to that of the first magnetic block, and the magnetism on the side of the annular electromagnet close to the second magnetic block is opposite to that of the second magnetic block, so that the distance between the curtain plate and the inner side of the guide rail is kept constant during the lifting process, thereby avoiding the contact between the curtain plate and the guide rail to generate a large friction force and noise; 3. In the present application, the motor drives the driving rod fixed with the output end to rotate, so that the driving gear fixed with the driving rod, the driven gear meshing with the driving gear, the worm fixed with the driven gear, the drive rod fixed with the worm gear, and the worm gear meshing with the worm rotate, so that the worm gears and the drive rods on both sides of the curtain plate rotate synchronously, the annular air bags on both sides of the curtain plate rotate synchronously and reversely (the rotation direction of the worm and the worm gear can be controlled), and then the curtain plate is lifted and lowered to achieve the purpose of opening or closing the automatic door. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a whole structure schematic diagram of the embodiment of the present application; Figure 2 is Figure 1 is a structure schematic diagram of another view angle; Figure 3 is a structure schematic diagram for highlighting the control mechanism of the embodiment of the present application; Figure 4 is Figure 3 is an enlarged schematic diagram of A in FIG. 4; Figure 5 is a plane schematic diagram of the embodiment of the present application; Figure 6 is a structure schematic diagram for highlighting the standby driving assembly of the embodiment of the present application; Figure 7 isFigure 6 An enlarged schematic view at B; Figure 8 is a structural schematic view for highlighting the annular air bag according to an embodiment of the present application; Figure 9 is a structural schematic view for highlighting the sealing air bag according to an embodiment of the present application; Figure 10 is a structural schematic view for highlighting the guide rail according to an embodiment of the present application; Figure 11 is Figure 2 An enlarged schematic view at C; Figure 12 is Figure 6 An enlarged schematic view at D.

[0026] In the figure: 1, guide rail; 11, vertical rolling groove; 12, mounting hole; 2, shell; 21, spiral plate; 22, rectangular through hole; 23, driving rod; 3, control mechanism; 31, main lifting assembly; 311, main lifting unit; 3111, driving shaft; 3112, annular air bag; 31121, first air bag; 31122, second air bag; 31123, communication hole; 312, main driving unit; 3121, worm; 3122, worm wheel; 3123, driven gear; 3124, driving rod; 3125, driving gear; 3126, driving piece; 32, magnetic suspension assembly; 321, first magnetic block; 322, second magnetic block; 323, annular electromagnet; 4, curtain plate; 41, plate body; 42, flexible connecting strip; 43, counterweight; 44, connecting plate; 441, guide wheel; 5, mounting shell; 51, standby shell; 6, standby driving assembly; 7, crank; 8, sealing assembly; 81, sealing air bag; 82, inflation pipe; 83, air distribution pipe; 84, air supply pipe; 85, exhaust pipe; 86, electromagnetic valve. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative labor on the basis of the embodiments in the present application shall fall within the protection scope of the present application.

[0028] As Figures 1-12As shown, the embodiment of the present application discloses a mute type flexible automatic door and lifting method, which comprises a guide rail 1 fixed in a door hole and a shell 2 fixed on the top of the guide rail 1, the guide rail 1 is provided with two and symmetrically distributed about the shell 2, the inner walls at both ends of the shell 2 are fixed with a spiral plate 21 for accommodating a curtain plate 4, the bottom of the shell 2 is provided with a rectangular through hole 22 for the curtain plate 4 to enter and exit, and the shell 2 and the guide rail 1 are jointly provided with a control mechanism 3, the control mechanism 3 comprises a main lifting assembly 31 for controlling the lifting of the curtain plate 4 and a magnetic suspension assembly 32 for keeping the distance between the curtain plate 4 and the guide rail 1 to prevent collision.

[0029] In the process of using the main lifting assembly 31 to control the lifting of the curtain plate 4, the magnetic suspension assembly 32 can keep the distance between the curtain plate 4 and the guide rail 1 to prevent collision, which changes the defect that the curtain plate 4 is easy to collide with the guide rail 1 to generate noise in the conventional technology, and is beneficial to improve the use experience of the user.

[0030] The cross section of the guide rail 1 is U-shaped, the opening sides of the two guide rails 1 are oppositely arranged, the curtain plate 4 comprises a plurality of alternately arranged plate bodies 41 and flexible connecting strips 42, the bottom surface of the plate body 41 at the bottom of the curtain plate 4 is fixed with a counterweight 43, the magnetic suspension assembly 32 comprises a first magnetic block 321 fixed with the inner wall of one side of the guide rail 1, a second magnetic block 322 fixed with the inner wall of the other side of the guide rail 1 and a ring-shaped electromagnet 323 embedded in the plate body 41 and corresponding to the position of the second magnetic block 322, the length directions of the first magnetic block 321 and the second magnetic block 322 are vertical and the magnetism thereof is opposite, the magnetism of the side of the ring-shaped electromagnet 323 close to the first magnetic block 321 is opposite to that of the first magnetic block 321, the magnetism of the side of the ring-shaped electromagnet 323 close to the second magnetic block 322 is opposite to that of the second magnetic block 322, and each plate body 41 corresponding to the ring-shaped electromagnet 323 is provided with two and located close to both ends of the curtain plate 4.

[0031] In the process of using the main lifting assembly 31 to control the lifting of the curtain plate 4, the magnetism of the two sides of the ring-shaped electromagnet 323 is opposite, the magnetism of the side of the ring-shaped electromagnet 323 close to the first magnetic block 321 is opposite to that of the first magnetic block 321, and the magnetism of the side of the ring-shaped electromagnet 323 close to the second magnetic block 322 is opposite to that of the second magnetic block 322, so that the distance between the curtain plate 4 and the inner side of the guide rail 1 is kept constant during the lifting process, and the contact between the curtain plate 4 and the guide rail 1 is avoided to generate large friction and noise.

[0032] The side walls of the counterweight 43 are fixed with a pair of connecting plates 44 close to the position of the bottom thereof, the two connecting plates 44 are rotatably installed with a guide wheel 441, the inner wall of the guide rail 1 is provided with a vertical rolling groove 11 for rolling connection of the guide wheel 441, and the plate bodies 41 close to the top of the curtain plate 4 are also configured with the connecting plates 44 and the guide wheels 441 in the same way.

[0033] The guide wheel 441 is in rolling connection with the vertical rolling groove 11, so as to guide the descending of the counterweight 43 and the curtain plate 4, reduce the shaking of the curtain plate 4, and ensure the stability of the curtain plate 4 during the descending.

[0034] The inner wall between the two ends of the shell 2 is rotatably provided with a driving rod 23, the driving rod 23 is provided with two and symmetrically distributed on the two sides of the curtain plate 4, the main lifting assembly 31 comprises a main lifting unit 311, the main lifting unit 311 is provided with two groups and symmetrically distributed on the two sides of the curtain plate 4, the main lifting unit 311 comprises a driving shaft 3111 fixedly sleeved on the driving rod 23 and an annular air bag 3112 fixedly sleeved on the driving shaft 3111, the outer wall of the annular air bag 3112 is in abutment with the surface of the plate body 41, and the main lifting assembly 31 further comprises a main driving unit 312 for controlling the synchronous rotation of the two driving rods 23. The main driving unit 312 can control the synchronous rotation of the two driving rods 23, so that the driving rod 23 and the annular air bag 3112 rotate synchronously, the annular air bags 3112 on the two sides of the curtain plate 4 rotate reversely, and thus the lifting of the curtain plate 4 is controlled.

[0035] The annular air bag 3112 is internally provided with a plurality of alternately arranged first air bags 31121 and second air bags 31122, the volume of the first air bag 31121 is greater than that of the second air bag 31122, the first air bag 31121 and the second air bag 31122 share a wall, and the first air bag 31121 and the second air bag 31122 are provided with a communication hole 31123 in communication with each other. During the process that the annular air bag 3112 abuts against the curtain plate 4 and makes the curtain plate 4 descend, because the surface flatness of the plate body 41 and the flexible connecting strip 42 is inconsistent, and the volume of the first air bag 31121 is greater than that of the second air bag 31122, the communication hole 31123 communicates between the first air bag 31121 and the second air bag 31122, so that the first air bag 31121 and the second air bag 31122 cooperate and alternately abut against the plate body 41 and the flexible connecting strip 42, thereby controlling the smooth lifting of the curtain plate 4.

[0036] The outer wall of one end of the shell 2 is fixedly provided with a mounting shell 5, one end of the driving rod 23 penetrates through the shell 2 and extends into the mounting shell 5, the main driving unit 312 comprises a worm 3121 rotatably mounted on the bottom wall in the mounting shell 5, a worm wheel 3122 fixed to the end of the driving rod 23 and in meshing connection with the worm 3121, a driven gear 3123 fixedly sleeved on the worm 3121, a driving rod 3124 rotatably mounted on the bottom wall in the mounting shell 5, a driving gear 3125 fixedly sleeved on the driving rod 3124 and in meshing connection with the driven gear 3123, and a driving member 3126 arranged in the mounting shell 5 and driving the driving rod 3124 to rotate, the worm 3121, the worm wheel 3122 and the driven gear 3123 are provided with two and symmetrically arranged, and the driving member 3126 is a motor fixed to the inner wall of the mounting shell 5.

[0037] After the motor starts working, it drives the drive rod 3124 fixed to its output end to rotate, thereby causing the drive gear 3125 fixed to the drive rod 3124, the driven gear 3123 meshing with the drive gear 3125, the worm 3121 fixed to the driven gear 3123, the drive rod 23 fixed to the worm wheel 3122, and the worm wheel 3122 meshing with the worm 3121 to rotate. This causes the worm wheels 3122 and drive rod 23 on both sides of the curtain panel 4 to rotate synchronously, and the annular airbags 3112 on both sides to rotate synchronously and in opposite directions (by controlling the rotation direction of the worm 3121 and the worm wheel 3122), thereby controlling the raising and lowering of the curtain panel 4 to achieve the purpose of opening or closing the automatic door.

[0038] A spare housing 51 is provided at the other end of the housing 2. The other end of the drive rod 23 passes through the housing 2 and extends into the spare housing 51. A spare drive assembly 6 is provided inside the spare housing 51. The structure of the spare drive assembly 6 is the same as that of the main drive unit 312, and is symmetrically arranged with the main drive unit 312 about the housing 2. The drive component 3126 in the spare drive assembly 6 is a lever that passes through the bottom of the spare housing 51 and is rotatably connected. The upper end of the lever is fixed to the lower end of one of the worm gears 3121 in the spare drive assembly 6. The lower end of the lever extends to the lower part of the guide rail 1 and is fixed with a crank 7.

[0039] In the event of a power outage, staff only need to hold the crank 7 and turn the lever, which will cause the worm gear 3121 fixed to the lever to rotate. As can be seen from the above analysis, the worm gears 3122 and the drive rod 23 on both sides of the curtain panel 4 will rotate synchronously, thereby achieving the purpose of driving the curtain panel 4 to rise and fall through the annular airbags 3112 on both sides.

[0040] The guide rail 1 is provided with a sealing assembly 8 to maintain the seal between it and the curtain panel 4. The sealing assembly 8 includes a sealing airbag 81 fixed to the inner wall of the guide rail 1 near its opening, and an inflation tube 82 fixed to and connected to the side wall of the sealing airbag 81. The side wall of the guide rail 1 is provided with a mounting hole 12 for installing the inflation tube 82. There are two sealing airbags 81 and two inflation tubes 82, which are symmetrically distributed on both sides of the housing 2. The sealing assembly 8 also includes an air distribution tube 83 fixed to and connected to the inflation tube 82, an air supply tube 84 fixed to and connected to both the air distribution tube 83 and the external inflation system, an exhaust tube 85 fixed to and connected to the side wall of the air supply tube 84, and a solenoid valve 86 provided on the exhaust tube 85. The air distribution tube 83 is connected to the inflation tubes 82 on both sides. After the sealing airbag 81 is inflated, the side of the sealing airbag 81 away from the inner wall of the guide rail 1 is pressed against the surface of the plate 41 and the surface of the flexible connecting strip 42.

[0041] In order to ensure the sound insulation effect during the closing process of the automatic door, the staff only needs to inflate the air supply pipe 84 through the external inflation system, and then inflate the air distribution pipe 83, the inflation pipe 82 and the sealing air bag 81 in turn. After the sealing air bag 81 is inflated, the surface of the sealing air bag 81 is tightly closed with the surface of the plate body 41, the surface of the flexible connecting strip 42 and the surface of the counterweight 43, so as to ensure the sealing between the curtain plate 4 and the guide rail 1, and ensure the mute effect of the automatic door. In this embodiment, the bottom of the sealing air bag 81 is flush with the bottom of the guide rail 1, and the top of the sealing air bag 81 is flush with the top of the guide rail 1 and the bottom of the shell 2.

[0042] The embodiment also discloses a lifting method of the mute flexible automatic door, which comprises the following steps: S1, when the curtain plate 4 is lowered, the staff only needs to control the rotation of the driving rod 3124 through the motor connected with the controller of the automatic door, so that the driving gear 3125 fixed with the driving rod 3124, the driven gear 3123 engaged with the driving gear 3125, the worm 3121 fixed with the driven gear 3123, the worm wheel 3122 engaged with the worm 3121, the driving rod 23 fixed with the worm wheel 3122, the driving shaft 3111 fixed with the driving rod 23 and the annular air bag 3112 fixed with the driving shaft 3111 are rotated. Since the outer wall of the annular air bag 3112 is tightly closed with the curtain plate 4, the annular air bag 3112 has the first air bag 31121 and the second air bag 31122 with different volumes, and the communication hole 31123 communicates the first air bag 31121 and the second air bag 31122, so that the curtain plate 4 composed of the plate body 41 and the flexible connecting strip 42 is kept rising or lowering under the cooperation of the first air bag 31121 and the second air bag 31122, and the stability of the curtain plate 4 during the lifting process is kept under the cooperation of the magnetic suspension assembly 32 and the counterweight 43, so as to reduce the probability of noise caused by collision during the lifting process of the curtain plate 4; S2, after the curtain plate 4 is closed, in order to ensure the sound insulation effect of the automatic door, the user only needs to control the external inflation system through the controller to inflate the sealing air bag 81 through the air supply pipe 84, the air distribution pipe 83 and the inflation pipe 82 in turn, until the sealing air bag 81 is inflated and tightly closed with the surface of the plate body 41 and the surface of the flexible connecting strip 42, so as to ensure the sealing between the guide rail 1 and the curtain plate 4, and ensure the sound insulation effect of the automatic door; S3, when the curtain plate 4 needs to be opened, the motor is only needed to be controlled to reverse rotation through the controller; S4, when power failure occurs, the user only needs to use the crank 7 to rotate the worm 3121 through the hand rod, so that the worm wheel 3122 engaged with the worm 3121 and the driving rod 23 fixed with the worm wheel 3122 are rotated, and then the driving shaft 3111 and the annular air bag 3112 are rotated, so that the curtain plate 4 can be lifted and lowered, and the normal use of the automatic door is ensured.

[0043] The noise reduction characteristics during opening and closing of the curtain plate 4 and the silence after the curtain plate 4 is closed are ensured.

[0044] The above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned examples, all technical solutions belonging to the idea of the present application are within the protection scope of the present application. It should be pointed out that, for ordinary skilled in the art, some improvements and decorations without departing from the principles of the present application, these improvements and decorations should also be considered as the protection scope of the present application.

Claims

1. A silent flexible automatic door, comprising a guide rail (1) fixed in a door opening and a housing (2) fixed to the top of the guide rail (1), wherein the guide rail (1) has two rails symmetrically distributed about the housing (2), characterized in that: A spiral plate (21) for storing the curtain panel (4) is fixed between the inner walls at both ends of the housing (2). A control mechanism (3) is provided in the housing (2) and the guide rail (1). The control mechanism (3) includes a main lifting assembly (31) for controlling the lifting of the curtain panel (4) and a magnetic levitation assembly (32) for maintaining the distance between the curtain panel (4) and the guide rail (1) to prevent collision.

2. The silent flexible automatic door according to claim 1, characterized in that: The cross-section of the guide rail (1) is U-shaped, and the open sides of the two guide rails (1) are arranged opposite each other. The curtain panel (4) includes multiple alternating plates (41) and flexible connecting strips (42). A counterweight (43) is fixed on the lower surface of the plate (41) at the bottom of the curtain panel (4). The magnetic levitation component (32) includes a first magnetic block (321) fixed to the inner wall of one side of the guide rail (1), a second magnetic block (322) fixed to the inner wall of the other side of the guide rail (1), and a component embedded in the plate (41) and corresponding to the position of the second magnetic block (322). The annular electromagnet (323) has a first magnetic block (321) and a second magnetic block (322) with vertical length directions and opposite magnetic properties. The magnetic properties of the annular electromagnet (323) on the side closer to the first magnetic block (321) are opposite to those of the first magnetic block (321), and the magnetic properties of the annular electromagnet (323) on the side closer to the second magnetic block (322) are opposite to those of the second magnetic block (322). Each plate (41) has two annular electromagnets (323) and they are located near the two ends of the curtain plate (4).

3. A silent flexible automatic door according to claim 2, characterized in that: A pair of connecting plates (44) are fixed on the side walls of the counterweight (43) near its bottom. A guide wheel (441) is rotatably installed between the two connecting plates (44). A vertical rolling groove (11) is provided on the inner wall of the guide rail (1) for the guide wheel (441) to roll. The connecting plates (44) and guide wheels (441) are also arranged in the same way on both sides of the panel (41) near the top of the curtain panel (4).

4. A silent flexible automatic door according to claim 3, characterized in that: A drive rod (23) is rotatably installed between the inner walls at both ends of the housing (2). There are two drive rods (23) symmetrically distributed on both sides of the curtain panel (4). The main lifting assembly (31) includes a main lifting unit (311). There are two sets of main lifting units (311) symmetrically distributed on both sides of the curtain panel (4). The main lifting unit (311) includes a drive shaft (3111) fixedly sleeved on the drive rod (23) and an annular airbag (3112) fixedly sleeved on the drive shaft (3111). The outer wall of the annular airbag (3112) abuts against the surface of the panel (41). The main lifting assembly (31) also includes a main drive unit (312) for controlling the synchronous rotation of the two drive rods (23).

5. A silent flexible automatic door according to claim 4, characterized in that: The annular airbag (3112) has multiple alternating first airbags (31121) and second airbags (31122) arranged inside. The volume of the first airbag (31121) is larger than that of the second airbag (31122). The first airbag (31121) and the second airbag (31122) share the same wall. A connecting hole (31123) is provided between the first airbag (31121) and the second airbag (31122).

6. A silent flexible automatic door according to claim 4, characterized in that: A mounting shell (5) is fixed to the outer wall of one end of the housing (2). One end of the drive rod (23) passes through the housing (2) and extends into the mounting shell (5). The main drive unit (312) includes a worm gear (3121) rotatably mounted on the bottom wall of the mounting shell (5), a worm wheel (3122) fixed to the end of the drive rod (23) and meshing with the worm gear (3121), a driven gear (3123) fixedly sleeved on the worm gear (3121), and a drive gear rotatably mounted on the mounting shell (5). The inner bottom wall has an active rod (3124), an active gear (3125) fixedly sleeved on the active rod (3124) and meshing with the driven gear (3123), and a drive member (3126) set in the mounting shell (5) and driving the active rod (3124) to rotate. There are two worm gears (3121), worm wheel (3122) and driven gear (3123) arranged symmetrically. The drive member (3126) is a motor fixed on the inner wall of the mounting shell (5).

7. A silent flexible automatic door according to claim 6, characterized in that: A spare shell (51) is provided at the other end of the housing (2). The other end of the drive rod (23) passes through the housing (2) and extends into the spare shell (51). A spare drive assembly (6) is provided inside the spare shell (51). The structure of the spare drive assembly (6) is the same as that of the main drive unit (312), and it is symmetrically arranged with the main drive unit (312) about the housing (2). The drive component (3126) in the spare drive assembly (6) is a lever that passes through the bottom of the spare shell (51) and is rotatably connected. The upper end of the lever is fixed to the lower end of one of the worm gears (3121) in the spare drive assembly (6). The lower end of the lever extends to the lower part of the guide rail (1) and is fixed with a crank (7).

8. A silent flexible automatic door according to claim 6, characterized in that: The guide rail (1) is provided with a sealing assembly (8) to maintain the seal between it and the curtain panel (4). The sealing assembly (8) includes a sealing airbag (81) fixed to the inner wall of the guide rail (1) near its opening, and an inflation tube (82) fixed to and connected to the side wall of the sealing airbag (81). The side wall of the guide rail (1) is provided with a mounting hole (12) for installing the inflation tube (82). There are two sealing airbags (81) and two inflation tubes (82) respectively, which are symmetrically distributed on both sides of the housing (2). The sealing assembly (8) also includes a sealing airbag (81) fixed to the inner wall of the guide rail (1) near its opening, and an inflation tube (82) fixed to and connected to the side wall of the sealing airbag (81). The air distribution pipe (83) is fixed and connected to the air distribution pipe (83) and the external air supply pipe (84) is fixed and connected to both the air distribution pipe (83) and the external air supply system, the exhaust pipe (85) is fixed and connected to the side wall of the air supply pipe (84), and the solenoid valve (86) is installed on the exhaust pipe (85). The air distribution pipe (83) is connected to both sides of the air distribution pipe (82). After the sealing airbag (81) is inflated, the side of the sealing airbag (81) away from the inner wall of the guide rail (1) is pressed against the surface of the plate (41) and the surface of the flexible connecting strip (42).

9. A silent flexible automatic door according to claim 8, characterized in that: The bottom of the sealing airbag (81) is flush with the bottom of the guide rail (1), and the top of the sealing airbag (81) is flush with the top of the guide rail (1) and the bottom of the housing (2).

10. A lifting method for a silent flexible automatic door according to any one of claims 8 or 9, characterized in that, Includes the following steps: S1. When the control curtain (4) descends, the operator only needs to control the rotation of the drive rod (3124) through the motor connected to the controller of the automatic door. This causes the drive gear (3125) fixed to the drive rod (3124), the driven gear (3123) meshing with the drive gear (3125), the worm gear (3121) fixed to the driven gear (3123), the worm wheel (3122) meshing with the worm gear (3121), the drive rod (23) fixed to the worm wheel (3122), the drive shaft (3111) fixed to the drive rod (23), and the annular airbag (3112) fixed to the drive shaft (3111) to all rotate. 2) The outer wall is pressed against the curtain panel (4). The annular airbag (3112) has a first airbag (31121) and a second airbag (31122) of different volumes. The connecting hole (31123) connects the first airbag (31121) and the second airbag (31122), so that the curtain panel (4) composed of the plate (41) and the flexible connecting strip (42) can rise or fall under the cooperation of the first airbag (31121) and the second airbag (31122). Under the cooperation of the magnetic levitation component (32) and the counterweight (43), the stability of the curtain panel (4) during the lifting process is maintained, and the probability of noise caused by collision during the lifting process of the curtain panel (4) is reduced. S2. After the curtain panel (4) is closed, in order to ensure the sound insulation effect of the automatic door, the user only needs to control the external inflation system through the controller to inflate the airbag (81) in sequence through the air supply pipe (84), the air distribution pipe (83), and the inflation pipe (82) until the airbag (81) bulges up and presses against the surface of the panel (41) and the surface of the flexible connecting strip (42), thus ensuring the sealing of the connection between the guide rail (1) and the curtain panel (4) and ensuring the sound insulation effect of the automatic door. S3. When it is necessary to open the curtain panel (4), simply control the motor to run in reverse through the controller; S4. When a power outage occurs, the user only needs to use the crank (7) to rotate the worm gear (3121) via the hand lever, so that the worm wheel (3122) meshing with the worm gear (3121) and the drive rod (23) fixed to the worm wheel (3122) rotate, thereby causing the drive shaft (3111) and the annular airbag (3112) to rotate, so that the curtain panel (4) can be raised and lowered, ensuring the normal use of the automatic door.

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