Manual-automatic integrated door curtain

Abstract

The invention relates to the field of intelligent household roller shutter doors and curtains, and discloses a manual-automatic integrated door curtain. A transmission shaft is arranged in an upper frame, one end of the transmission shaft is connected with a motor, the other end of the transmission shaft penetrates through a rope winder and a lead screw to be connected with a universal joint, a reel is installed in a left frame, curtain cloth is installed on the reel, the curtain cloth is connected with a movable frame, and a coil spring is installed in the reel; an upper fixing piece is arranged on the upper portion of the coil spring, the upper fixing piece is connected with the upper row gear set, a lower fixing piece is arranged on the lower portion of the coil spring, the lower fixing piece and the reel are fixed together, the reel is connected with the lower row gear set, elasticity of the coil spring is adjusted when the coil spring is preassembled into the reel, and the upper row gear set and the lower row gear set form forward force and reverse force through the elasticity of the coil spring. The elastic force generated by the coil spring enables the reel to drive the curtain cloth to be rewound, the force generated by the reel to drive the curtain cloth to be rewound and the force generated by the rope winder to pull the pull line to drive the movable frame to move are a pair of opposite forces, the flatness of the curtain cloth is guaranteed through stable tension formed by the opposite forces, and the door curtain can be operated manually or automatically.

Description

Technical Field

[0001] The present invention relates to the field of smart home rolling door curtains, and particularly to a manual and automatic integrated door curtain. Background Art

[0002] Door curtains play a role in ventilation, heat insulation, wind prevention and insect prevention in daily use, and are widely used in modern families, commercial places, workshops and other places. The following problems often exist in use: light-weight door curtains are easily blown up by the wind, hitting the door with a loud noise; although magnetic door curtains solve the problem of being easily blown up by the wind and can automatically close after people enter and exit, they still need to be pushed open by hand or body, are prone to getting dirty on the surface, and viruses are also easily spread. It is not convenient to enter and exit, and the magnetic strip part is easily adsorbed with dirt and discolored, and it cannot be cleaned, affecting the appearance. There is a large gap at the bottom of the door curtain, and dust is easily blown in by the wind. It is very easy for reptiles, snakes and rats to enter the house, which is very dangerous. The current door curtains are difficult to meet the decoration styles of current buildings. After installation, they are very unsightly and uneven. Especially after a long time, they turn yellow, get dirty and the surface is uneven, making a very good house look particularly tasteless. When not in use, it is not convenient to store. For ordinary retractable screen doors, when pulling out, the coil spring is stressed and it is difficult to pull out. When retracting, the force of the coil spring rolls back the curtain cloth. Each time it is opened and closed, the coil spring will be stressed once. After a long time, the elasticity decays and fails, resulting in the inability to roll back, and people cannot enter or exit. Especially in case of fire or special situations, it is difficult to escape. It is also not convenient to open and close the door. It can stop at any position, which is solved by friction. It is difficult to pull out, and the friction part has a short service life and is unstable and cannot stop steadily. Due to people's requirements for convenient entry and exit, hygiene and technology, induction automatic doors are selected, but they require twice the space to open, and the original building and door openings need to be modified, resulting in waste of space. The cost of automatic doors is also high. When the door curtain is opened, flies and mosquitoes will enter.

[0003] In patent CN202310867281.X, when the rope winder winds the pull wire, it cannot ensure that the pull wire will be accurately wound on the rope winder, and the wire may become disordered. The pull wire tensioner and the coil spring cannot solve the problem of the matching error between the rope winder and the reel, and the problems of the changes in the curtain cloth and the pull wire. When it is stationary, the pull wire is tightened to tension the curtain cloth, but there is still an ineffective stroke when it moves, and the problem of the empty stroke is not solved, and it will be tightened and loosened suddenly. At the same time, the increase of the pull wire wheel also increases the wear of the pull wire. The rope winder is connected to the reel and cannot be adjusted. The changes in the thickness of the reel, the matching error with the rope winder, the thermal expansion and contraction of the curtain cloth, and the elongation coefficient of the pull wire result in the change of the tension force of the curtain cloth. Moreover, when the width of the curtain is relatively wide, the rope winder also has to be large in size, which will cause waste of space. After the pull wire is broken and the power is cut off (or the motor fails), the curtain cloth cannot be automatically retracted. When the reel winds the curtain cloth, the thickness of the diameter changes. The curtain cloth needs to run in the upper and lower tracks (the upper and lower tracks ensure the flatness of the curtain cloth). If the curtain cloth is tensioned and the reel cannot move, there will be an oblique pulling force when the curtain cloth enters the guide rail, which will affect the service life of the curtain cloth. Summary of the Invention

[0004] To solve the above problems, the present invention provides a manual and electric integrated curtain. It can be manually or inductively electrically controlled to open and close the curtain. When the power is cut off, it can be manually pushed and pulled. By utilizing the characteristics of the coil spring, the balance of the retracting force and the pulling force is achieved, making the pushing and pulling very labor-saving, and it can be stopped at will. A rope winder (designed with different diameters at both ends) that synchronizes with the change in the thickness of the reel is adopted, so that the coil spring will not have a change in the force when the curtain is opened and closed each time, and always maintains a certain elastic force, making the tension force of the curtain cloth uniform and not loose and tight suddenly, ensuring the service life of the coil spring. Since the rope winder can move back and forth, the wire will not become disordered. After the pull wire is broken, the curtain can still be automatically retracted without affecting access. The reel is not fixed, so there will be no oblique pulling force when the curtain cloth enters the track, ensuring the service life of the curtain cloth. Since a mosquito and fly repellent device is adopted, when the curtain is opened, mosquitoes and flies are effectively prevented from entering. When the curtain is closed, the surrounding is a closed structure, and no reptiles, snakes or rats can enter from the bottom. The curtain cloth is flat and has a beautiful appearance.

[0005] The technical solution of the present invention is: to provide a manual-automatic integrated curtain, including an upper frame, a lower frame, a left frame, a right frame, a moving frame, a first wire rope, a second wire rope, a reel, a rope winder, a motor, a transmission shaft, a lead screw, a universal joint, a base, a first bevel gear, a second bevel gear, an upper row of gear sets, a lower row of gear sets, a bearing seat, a bearing, a fixing seat and a curtain cloth. A transmission shaft is provided in the upper frame. The transmission shaft is connected to a bearing, the bearing is connected to the bearing seat, and the bearing seat is connected to the base and fixed in the upper frame. The bearing on the bearing seat enables the transmission shaft to rotate freely. One end of the transmission shaft is connected to the motor, and the motor is fixed on the base through the fixing seat. The base is fixed in the upper frame. The other end of the transmission shaft passes through the rope winder, the lead screw and is connected to the universal joint. The lead screw is fixed to the bearing seat. The universal joint is connected to the first bevel gear, the first bevel gear is connected to the second bevel gear, and the second bevel gear is connected to the upper row of gear sets. A reel is installed in the left frame, and the curtain cloth is installed on the reel. The curtain cloth is connected to the moving frame. A torsion spring is installed inside the reel. An upper fixing member is provided at the upper part of the torsion spring. The upper fixing member is connected to the upper row of gear sets. A lower fixing member is provided at the lower part of the torsion spring. The lower fixing member is fixed to the reel. The reel is connected to the lower row of gear sets. The torsion spring is adjusted for its elastic force and then installed in the reel during pre-assembly. The elastic force of the torsion spring causes the upper row of gear sets and the lower row of gear sets to form forces in opposite directions. The elastic force generated by the torsion spring causes the reel to drive the curtain cloth to retract. The motor drives the rope winder to rotate through the transmission shaft. One end of the first wire rope is connected to the rope winder. The other end of the first wire rope passes through a wire rope pulley and is connected to the lower part of the moving frame. One end of the second wire rope passes through the wire rope pulley and is connected to the upper part of the moving frame. The other end of the second wire rope is connected to the first wire rope through a fixing block. The first wire rope and the second wire rope drive the moving frame to move. The elastic force generated by the torsion spring causes the reel to drive the curtain cloth to retract. The force generated by the reel to drive the curtain cloth to retract and the force formed by the rope winder pulling the first wire rope and the second wire rope to drive the moving frame to move are a pair of opposite forces. The stable tension formed by this opposite force ensures the flatness of the curtain cloth. Whether the curtain cloth expands or contracts due to heat or cold, or the first wire rope and the second wire rope extend, the consistency of the force can be ensured. This opposite force forms a force balance, so that when it needs to stop wherever it is pulled, it can stop at any time.

[0006] The rope winder is connected to a nut. The rope winder can translate left and right on the lead screw through the thread on the nut. The left and right translation of the rope winder is to ensure that the first wire rope can be wound around the rope winder smoothly without getting tangled. The transmission shaft drives the rope winder, which in turn drives the nut to rotate. For each rotation of the nut, the rope winder will translate a pitch accordingly.

[0007] A ratchet wheel is installed on the transmission shaft.

[0008] The upper frame is equipped with a pulley frame base, a rotating shaft is installed on the pulley frame base, the rotating shaft connects the pulley frame and the torsion spring, the pulley frame is equipped with a pulley, and a limit switch and a ratchet are provided on the pulley frame base. One end of the pull wire passes through the pulley and is connected to the rope winder. When the pull wire is in a taut state, the pulley frame rotates through the rotating shaft and hits the ratchet. The ratchet is separated from the ratchet, and the pulley frame also leaves the limit switch. The door curtain is in an open state. When the pull wire suddenly breaks, the pulley frame returns to its original position under the action of the torsion spring and hits the limit switch, stopping the motor. The ratchet also returns to its original position and jams the ratchet. This will make one end of the upper gear set connected to the upper fixing of the winding spring immovable, and the winding shaft connected to one end of the lower fixing of the winding spring will roll back the curtain cloth under the action of the winding spring, and the pull wire will not break and cannot be rolled back. The design of the rope winder's large and small heads is synchronized with the changes in the thickness of the reel, so that each time the door curtain is opened and closed, no matter how many times it is operated, a certain elastic force will always be maintained and will not change. The coil spring does not participate in the work and always maintains a certain elastic force without elastic force attenuation, thus ensuring the life of the coil spring. Only when the pull wire suddenly breaks, the elastic force is released and the coil spring drives the reel to roll up the curtain cloth 7 times.

[0009] There is a lever frame between the upper gear set and the lower gear set, and a rotating lever is installed on the lever frame. One of the gears of the lower gear set is equipped with a protruding lever. If an unexpected jam occurs, the jam problem will be solved by connecting the protruding lever and the rotating lever. When the pull line is suddenly broken, the protruding lever will jam the upper gear set and stop it. When the reel rewinds the curtain, the rotating lever will be moved to the right position, thus breaking the connection. Although the upper gear set cannot rotate and the motor stops running, the moving frame can still manually pull out the curtain. When rewinding, it depends on the rewinding force of the winding spring. After the pull line is readjusted, the rotating lever can be rotated back to its position.

[0010] There is a wire pulling groove on the rope reel, which is a conical design with large and small heads. Since the curtain is rolled on the reel, the thickness of the reel changes when the door curtain is unfolded and retracted. Therefore, the wire pulling groove on the rope reel is a conical design with large and small heads to match the changes in the thickness of the reel. In this way, the elastic force of the winding spring in the reel remains unchanged, and the operating tension will not fluctuate.

[0011] The upper frame is installed with an upper track of the curtain and an upper track of the moving frame, and the lower frame is installed with a lower track of the curtain and a lower track of the moving frame. The moving frame moves between the upper track of the moving frame and the lower track of the moving frame, and the curtain moves between the upper track of the curtain and the lower track of the curtain to keep the curtain flat. A spring sheet is installed on the upper track of the curtain to ensure that the curtain maintains a certain tension and runs smoothly when it expands or contracts or is tightened. The curtain is connected to the moving frame and moves between the upper track of the curtain and the lower track of the curtain as the moving frame moves.

[0012] The upper and lower ends of the left frame are provided with upper and lower sliding tracks. Pulleys are provided at the upper and lower parts of the reel, and the pulleys are connected to the upper and lower sliding tracks. In this way, the entire reel can move within a certain range, ensuring that the curtain on the reel always runs on the upper curtain track and the lower curtain track, thus guaranteeing the service life of the curtain.

[0013] The upper row of gear sets, the lower row of gear sets, the first bevel gear and the second bevel gear are installed on the gear rack. The gear rack is installed on the upper part of the left frame, and a pulley is also provided on the gear rack. The pulley is connected to the upper sliding track.

[0014] The heights of the reel and the coil spring can be adjusted arbitrarily according to the heights of the curtain and the door frame.

[0015] The upper frame is installed with an outer cover, which can protect the equipment installed in the upper frame and is aesthetically pleasing.

[0016] The upper frame is installed with an induction probe and a mosquito, fly and insect repellent device. Through the induction probe, when a person is detected, the curtain opens, and when the person leaves, the curtain closes. When the curtain opens, mosquitoes and flies may also come in. To avoid this, a mosquito, fly and insect repellent device is installed. The whole curtain is enclosed on the top, bottom, left and right. When in the closed state, dust, snakes, rats and crawling insects will be isolated outside, preventing them from entering the room.

[0017] When the installation environment requirements of the lower frame are low, the bottom rail can be used instead of the lower frame, and the drag chain method is adopted. The drag chain and the pull wire cooperate to push and pull the moving frame to move.

[0018] The curtain can be manual or automatic. When using the motor, it is in the automatic state, and when the power is off and the motor is not used, it can be manually controlled.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the curtain switch can be controlled manually or automatically. When the power is off, it can be manually adjusted. The curtain moves smoothly without generating a mess of wires. After the pull wire breaks, the curtain switch can be manually adjusted, and it can be retracted and extended freely and runs smoothly, increasing the service life of the curtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the drawings:

[0021] Figure 1 is the front structure diagram of the single-door of the present invention;

[0022] Figure 2 is the side structure diagram of the present invention;

[0023] Figure 3 is the front structure diagram of the double-door of the present invention;

[0024] Figure 4 is the cross-sectional structure diagram of the single-door of the present invention;

[0025] Figure 5It is a sectional view structure diagram of the side of the present invention;

[0026] Figure 6 It is a partial structure diagram of the present invention;

[0027] Figure 7 It is a sectional view structure diagram of the double - door of the present invention;

[0028] Figure 8 It is a partial structure diagram of the present invention;

[0029] Figure 9 It is a partial structure diagram of the present invention;

[0030] Figure 10 It is a partial structure diagram of the present invention;

[0031] Figure 11 It is a partial structure diagram of the present invention;

[0032] Figure 12 It is a partial structure diagram of the present invention;

[0033] Figure 13 It is a structure diagram of the single - door in the form of a drag chain of the present invention;

[0034] Figure 14 It is a partial structure diagram of the double - door in the form of a drag chain of the present invention;

[0035] Figure 15 It is a partial structure diagram of the present invention;

[0036] Figure 16 It is a partial structure diagram of the present invention;

[0037] Figure 17 It is a partial structure diagram of the present invention;

[0038] Figure 18 It is a partial structure diagram of the present invention;

[0039] Figure 19 It is a partial structure diagram of the present invention;

[0040] Figure 20 It is a partial structure diagram of the present invention;

[0041] Figure 21 It is a partial structure diagram of the present invention;

[0042] Figure 22 It is a partial structure diagram of the present invention.

[0043] Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 22 As shown in Figure 22 : 1. upper frame, 2. lower frame, 3. left frame, 4. right frame, 5. outer cover, 6. moving frame, 7. reel, 8. coil spring, 9. upper fixing member, 10. lower fixing member, 11. upper row of gear sets, 12. lower row of gear sets, 13. base, 14. bevel gear one, 15. bevel gear two, 16. wire rope one, 17. curtain cloth, 18. universal joint, 19. transmission shaft, 20. rope winder, 21. motor, 22. nut, 23. lead screw, 24. wire rope pulley bracket, 25. pawl, 26. ratchet wheel, 27. limit switch, 28. torsion spring, 29. pulley, 30. bottom rail, 31. drag chain, 32. gear bracket, 33. wire rope groove, 34. upper track of curtain cloth, 35. lower track of curtain cloth, 36. protruding lever, 37. rotating lever, 38. induction probe, 39. mosquito, fly and insect repellent device, 40. rotating shaft, 41. wire rope pulley, 42. lever bracket, 43. fixing block, 44. wire rope two, 45. bearing seat, 46. bearing, 47. fixing seat, 48. upper track of moving frame, 49. lower track of moving frame, 50. spring piece, 51. base of wire rope pulley bracket. Detailed implementation manners

[0044] The present invention will be further described in detail below with reference to the figures. It should be noted that the figures are only used to explain the present invention and are schematic illustrations of the embodiments of the present invention, and should not be construed as limiting the present invention.

[0045] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 、 Figure 19 、 Figure 20 、 Figure 21 、 Figure 22As shown in the figure, the manual-automatic integrated curtain includes an upper frame 1, a lower frame 2, a left frame 3, a right frame 4, a moving frame 6, a first wire 16, a second wire 44, a reel 7, a rope winder 20, a motor 21, a transmission shaft 19, a lead screw 23, a universal joint 18, a base 13, a first bevel gear 14, a second bevel gear 15, an upper row of gear sets 11, a lower row of gear sets 12, a bearing seat 45, a bearing 46, a fixing seat 47 and a curtain cloth 17. A transmission shaft 19 is provided in the upper frame 1. The transmission shaft 19 is connected to a bearing 46. The bearing 46 is connected to the bearing seat 45. The bearing seat 45 is connected to the base 13 and fixed in the upper frame 1. The bearing 46 on the bearing seat 45 enables the transmission shaft 19 to rotate freely. One end of the transmission shaft 19 is connected to the motor 21. The motor 21 is fixed on the base 13 through the fixing seat 47. The base 13 is fixed in the upper frame 1. The other end of the transmission shaft 19 passes through the rope winder 20, the lead screw 23 and is connected to the universal joint 18. The lead screw 23 and the bearing seat 45 are fixed. The universal joint 18 is connected to the first bevel gear 14. The first bevel gear 14 is connected to the second bevel gear 15. The second bevel gear 15 is connected to the upper row of gear sets 11. A reel 7 is installed in the left frame 3. The curtain cloth 17 is installed on the reel 7. The curtain cloth 17 is connected to the moving frame 6. A torsion spring 8 is installed inside the reel 7. An upper fixing member 9 is provided at the upper part of the torsion spring 8. The upper fixing member 9 is connected to the upper row of gear sets 11. A lower fixing member 10 is provided at the lower part of the torsion spring 8. The lower fixing member 10 is fixed to the reel 7. The reel 7 is connected to the lower row of gear sets 12. The torsion spring 8 is adjusted for its elastic force and then installed in the reel 7 when pre-installed. The elastic force of the torsion spring 8 causes the upper row of gear sets 11 and the lower row of gear sets 12 to form a positive and a negative force. The elastic force generated by the torsion spring 8 causes the reel 7 to drive the curtain cloth 17 to retract. The motor 21 drives the rope winder 20 to rotate through the transmission shaft 19. One end of the first wire 16 is connected to the rope winder 20. The other end of the first wire 16 passes through a wire pulley 41 and is connected to the lower part of the moving frame 6. One end of the second wire 44 passes through the wire pulley 41 and is connected to the upper part of the moving frame. The other end of the second wire 44 is connected to the first wire 16 through a fixing block 43. The first wire 16 and the second wire 44 drive the moving frame 6 to move. The elastic force generated by the torsion spring 8 causes the reel 7 to drive the curtain cloth 17 to retract. The force for the reel 7 to drive the curtain cloth 17 to retract and the force for the rope winder 20 to pull the first wire 16 and the second wire 44 to drive the moving frame 6 to move form a pair of opposite forces. The stable tension formed by this opposite force ensures the flatness of the curtain cloth 17. Whether the curtain cloth 17 expands or contracts due to heat or cold, or the first wire 16 and the second wire 44 extend, the force can be ensured to be consistent. This opposite force forms a force balance, so that when it needs to stop anywhere it is pulled, it can stop at any time.

[0047] The rope winder 20 is connected to a nut 22. The rope winder 20 can translate left and right on the lead screw 23 through the thread on the nut 22. The left and right translation of the rope winder 20 is for the first wire 16 to be wound smoothly on the rope winder 20 without getting tangled. The transmission shaft 19 drives the rope winder 20, thus driving the nut 22 to rotate. For each rotation of the nut 22, the rope winder 20 will translate a pitch accordingly.

[0048] A ratchet 26 is mounted on the transmission shaft 19 .

[0049] The upper frame 1 is provided with a pull-wire frame base 51, on which a rotating shaft 40 is installed, which connects the pull-wire frame 24 and the torsion spring 28, and the pull-wire frame 24 is provided with a pull-wire wheel 41, and a limit switch 27 and a ratchet 25 are also provided on the pull-wire frame base 51. One end of the pull-wire 16 passes through the pull-wire wheel 41 and is connected to the rope reel 20. When the pull-wire 16 is in a tensioned state, the pull-wire frame 24 rotates through the rotating shaft 40 to hit the ratchet 25, and the ratchet 25 is separated from the ratchet 26. 24 also leaves the limit switch 27, the door curtain is in the open state, when the pull wire 16 suddenly breaks, the pull wire wheel frame 24 returns to its position under the action of the torsion spring 28, hits the limit switch 27, stops the motor 21, and the ratchet 25 also returns to its position, jams the ratchet 26, which will make the end of the upper gear set 11 connected to the upper fixing piece 9 of the coil spring 8 remain stationary, and the reel 7 connected to one end of the lower fixing piece 10 of the coil spring 8 will roll back the curtain 17 under the action of the coil spring 8, and there will be no situation where the pull wire breaks and cannot be rolled back. The design of the rope reel 20 with a size head that is synchronized with the change of the thickness of the reel 7 is adopted, so that each time the door curtain is opened and closed, no matter how many times it runs, a certain elastic force will always be maintained and will not change. The coil spring 8 does not participate in the work and always maintains a certain elastic force, and there will be no attenuation of the elastic force, which ensures the life of the coil spring 8. Only when the pull wire 16 suddenly breaks, the elastic force is released, and the coil spring 8 drives the reel 7 to roll back the curtain 17.

[0050] A lever frame 42 is provided between the upper gear set 11 and the lower gear set 12, and a rotating lever 37 is installed on the lever frame 42. A protruding lever 36 is installed on one of the gears of the lower gear set 12. If an unexpected jam occurs, the jam problem can be solved by connecting the protruding lever 36 and the rotating lever 37. When the pull wire 16 is suddenly broken, the protruding lever 36 blocks the upper gear set 11 and stops. When the reel 7 rewinds the curtain 17, the rotating lever 37 will be moved to a 90-degree position, thus breaking the connection. Although the upper gear set 11 cannot rotate and the motor stops running, the moving frame 6 can still manually pull out the curtain 17, and the rewinding depends on the rewinding force of the winding spring 8. After the pull wire 16 is readjusted, the rotating lever 37 can be rotated back to its original position.

[0051] A wire drawing groove 33 is provided on the rope reel 20, and the wire drawing groove 33 is designed with large and small heads in a conical shape. Since the curtain 17 is rolled up on the reel 7, the thickness of the reel 7 changes when the door curtain is unfolded and retracted. Therefore, the wire drawing groove 33 on the rope reel 20 is designed with large and small heads in a conical shape to match the thickness change of the reel 7. In this way, the elastic force of the coil spring 8 in the reel 7 remains unchanged, and the operating tension will not fluctuate.

[0052] The upper frame 1 is installed with a curtain upper track 34 and a moving frame upper track 48, and the lower frame 2 is installed with a curtain lower track 35 and a moving frame lower track 49. The moving frame 6 moves between the moving frame upper track 48 and the moving frame lower track 49, and the curtain 17 moves between the curtain upper track 34 and the curtain lower track 35 to keep the curtain 17 flat. A spring piece 50 is installed on the curtain upper track 34 to keep the curtain 17 running smoothly with a certain tension under the conditions of thermal expansion and contraction or tightening. The curtain 17 is connected to the moving frame 6 and moves between the curtain upper track 34 and the curtain lower track 35 as the moving frame 6 moves.

[0053] Upper and lower ends of the left frame 3 are provided with an upper slideway 46 and a lower slideway 47. Pulleys 29 are provided at the upper and lower parts of the reel 7, and the pulleys 29 are connected to the upper slideway 46 and the lower slideway 47. In this way, the whole reel 7 can move within a certain range, so that the curtain on the reel 7 always runs on the curtain upper track 34 and the curtain lower track 35, ensuring the service life of the curtain.

[0054] The upper row of gear sets 11, the lower row of gear sets 12, the first bevel gear 14 and the second bevel gear 15 are installed on the gear rack 32. The gear rack 32 is installed on the upper part of the left frame 3. The gear rack 32 is also provided with a pulley 29, and the pulley 29 is connected to the upper slideway 46.

[0055] The heights of the reel 7 and the coil spring 8 can be adjusted arbitrarily according to the heights of the curtain 17 and the door frame.

[0056] The upper frame 1 is installed with an outer cover 5, which can protect the equipment installed in the upper frame and is beautiful.

[0057] The upper frame 1 is installed with an induction probe 38 and a mosquito, fly and insect repellent device 39. Through the induction probe 38, when a person is detected, the curtain opens, and when the person leaves, the curtain closes. When the curtain opens, mosquitoes and flies may also come in together. To avoid this, a mosquito, fly and insect repellent device is installed. The whole upper, lower, left and right of the curtain are closed. In the closed state, dust, snakes, rats and crawling insects will be isolated outside to avoid entering the room.

[0058] When the installation environment requirement of the lower frame 2 is low, the bottom rail 30 can be used instead of the lower frame 2, and the way of a drag chain 31 is adopted. The drag chain 31 and the wire rope cooperate to push and pull the moving frame 6 to move.

[0059] The curtain can be manual or automatic. When using the motor 21, it is in the automatic state, and when the power is off and the motor 21 is not used, it can be manually controlled.

[0060] Working principle: After the curtain is installed, when it is necessary to pull out the curtain cloth 17, the motor 21 is started by remote control. The motor 21 drives the transmission shaft 19 to rotate. The transmission shaft 19 drives the rope winder 20, which in turn drives the nut 22 to rotate. The rope winder 20 can move left and right on the lead screw 23 through the thread on the nut 22. For each full rotation of the nut 22, the rope winder 20 will move a pitch accordingly. The first pull wire 16 is smoothly wound around the rope winder 20 without getting tangled. The transmission shaft 19 drives the rope winder 20 to wind one end of the first pull wire 16, thereby driving the first pull wire 16 and the second pull wire 44 to pull the moving frame 6 and pull out the curtain cloth 17 from the reel 7. The transmission shaft 19 drives the first bevel gear 14, the second bevel gear 15, and the upper row of gear sets 11 to rotate forward in sequence through the universal joint 18. The upper row of gear sets 11 makes the fixing part 9 on the torsion spring 8 rotate forward, and the lower row of gear sets 12 makes the lower fixing part 10 of the torsion spring 8 rotate in reverse. The torsion spring 8 is adjusted for its elastic force when pre-loaded into the reel 7 and then installed in the reel 7. The elastic force of the torsion spring 8 makes the upper row of gear sets 11 and the lower row of gear sets 12 form a forward and reverse force. The elastic force generated by the torsion spring 8 makes the reel 7 drive the curtain cloth 17 to retract. The force that the reel 7 drives the curtain cloth 17 to retract and the force formed by the rope winder 20 pulling the first pull wire 16 and the second pull wire 44 to drive the moving frame 6 to move are a pair of opposite forces. The stable tension formed by this opposite force ensures the stable operation of the curtain cloth 17. When it is necessary to retract the curtain, reverse the rotation of the motor 21, the rope winder 20 releases the first pull wire 16, and the torsion spring 8 drives the reel 7 to retract the curtain cloth 17 to complete the operation.

[0061] When the pull wire suddenly breaks, the pull wire wheel frame 24 returns to its original position under the action of the torsion spring 28, touches the limit switch 27, stops the motor 21, and the pawl 25 also returns to its original position and catches the ratchet 26. This will make one end of the upper row of gears 11 connecting the fixing part 9 on the torsion spring 8 immobile. For the reel 7 connecting one end of the lower fixing part 10 of the torsion spring 8, under the action of the torsion spring 8, it will retract the curtain cloth 17, and the situation where the curtain cannot be retracted when the pull wire breaks will not occur, solving the problem that the curtain cloth 17 gets stuck and cannot be retracted or extended after the pull wire suddenly breaks.

[0062] When an accidental jamming occurs and the upper row of gear sets 11 stops moving, when the reel 7 retracts the curtain cloth 17, it will turn the rotary lever 37 to the 90-degree position, and the protruding lever 36 catches the upper row of gear sets 11. Although the upper row of gear sets 11 does not move, the reel 7 can still pull out the curtain by the elastic force of the torsion spring 8. After the first pull wire 16 is readjusted, rotate the rotary lever 37 back to its original position.

[0063] The curtain can be manually or automatically controlled. Generally, the automatic state is used. When there is a power outage, it can be manually controlled. For manual control, just pull the moving frame 6. The moving frame 6 drives the curtain cloth 17. The curtain cloth 17 drives the reel 7. The reel 7 drives the lower row of gear sets 12. Using the elasticity of the coil spring 8 to drive the upper row of gear sets 11. The upper row of gear sets 11 drives the rope winder 20 to rotate and wind up the first guy wire 16 through the second bevel gear 15, the first bevel gear 14, the universal joint 18 and the transmission shaft 19, thus pulling out the curtain. When it needs to be manually closed, just push the moving frame to retract the curtain.

[0064] There is no restriction on the material of the curtain cloth 17. It can be a screen, transparent glass (such as PVC, PC, TPU, etc.), sunshade fabric, etc.

[0065] Patterns and advertisements can be sprayed on the curtain cloth 17 to improve the beauty and practicality of the curtain.

[0066] Embodiment 1

[0067] Such as Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 、 Figure 19 、 Figure 20 、 Figure 21 、 Figure 22As shown in the figure, when the manual-automatic integrated single-opening curtain is in use, it includes an upper frame 1, a lower frame 2, a left frame 3, a right frame 4, a moving frame 6, a first wire 16, a second wire 44, a reel 7, a rope winding device 20, a motor 21, a transmission shaft 19, a lead screw 23, a universal joint 18, a base 13, a first bevel gear 14, a second bevel gear 15, an upper row of gear sets 11, a lower row of gear sets 12, a bearing seat 45, a bearing 46, a fixing seat 47, and a curtain cloth 17. A transmission shaft 19 is provided in the upper frame 1. The transmission shaft 19 is connected to a bearing 46. The bearing 46 is connected to the bearing seat 45. The bearing seat 45 is connected to the base 13 and fixed in the upper frame 1. The bearing 46 on the bearing seat 45 enables the transmission shaft 19 to rotate freely. One end of the transmission shaft 19 is connected to the motor 21. The motor 21 is fixed to the base 13 through the fixing seat 47. The base 13 is fixed in the upper frame 1. The other end of the transmission shaft 19 passes through the rope winding device 20, the lead screw 23 and is connected to the universal joint 18. The lead screw 23 and the bearing seat 45 are fixed. The universal joint 18 is connected to the first bevel gear 14. The first bevel gear 14 is connected to the second bevel gear 15. The second bevel gear 15 is connected to the upper row of gear sets 11. A reel 7 is installed in the left frame 3. The curtain cloth 17 is installed on the reel 7. The curtain cloth 17 is connected to the moving frame 6. A torsion spring 8 is installed inside the reel 7. An upper fixing member 9 is provided at the upper part of the torsion spring 8. The upper fixing member 9 is connected to the upper row of gear sets 11. A lower fixing member 10 is provided at the lower part of the torsion spring 8. The lower fixing member 10 is fixed to the reel 7 together. The reel 7 is connected to the lower row of gear sets 12. The torsion spring 8 is adjusted to the appropriate elastic force and then installed into the reel 7 when pre-installed. The elastic force of the torsion spring 8 causes the upper row of gear sets 11 and the lower row of gear sets 12 to form a positive and negative force. The elastic force generated by the torsion spring 8 causes the reel 7 to drive the curtain cloth 17 to retract. The motor 21 drives the rope winding device 20 to rotate through the transmission shaft 19. One end of the first wire 16 is connected to the rope winding device 20. The other end of the first wire 16 passes through a wire pulley 41 and is connected to the lower part of the moving frame 6. One end of the second wire 44 passes through the wire pulley 41 and is connected to the upper part of the moving frame. The other end of the second wire 44 is connected to the first wire 16 through a fixing block 43. The first wire 16 and the second wire 44 drive the moving frame 6 to move. The elastic force generated by the torsion spring 8 causes the reel 7 to drive the curtain cloth 17 to retract. The force generated by the reel 7 driving the curtain cloth 17 to retract and the force formed by the rope winding device 20 pulling the first wire 16 and the second wire 44 to drive the moving frame 6 to move are a pair of opposite forces. The stable tension formed by this opposite force ensures the flatness of the curtain cloth 17. Whether the curtain cloth 17 expands or contracts due to heat or cold, or the first wire 16 and the second wire 44 extend, the force can be ensured to be consistent. This opposite force forms a force balance. In this way, when it needs to stop wherever it is pulled, it can stop at any time.

[0068] The rope winding device 20 is connected to a nut 22. The rope winding device 20 can translate left and right on the lead screw 23 through the thread on the nut 22. The left and right translation of the rope winding device 20 is to ensure that the first wire 16 can be wound smoothly on the rope winding device 20 without getting tangled. The transmission shaft 19 drives the rope winding device 20, thereby driving the nut 22 to rotate. For each rotation of the nut 22, the rope winding device 20 will translate a pitch accordingly.

[0069] A ratchet wheel 26 is installed on the transmission shaft 19.

[0070] A wire pulley frame base 51 is installed in the upper frame 1. A rotating shaft 40 is installed on the wire pulley frame base 51. The rotating shaft 40 is connected to a wire pulley frame 24 and a torsion spring 28. A wire pulley 41 is installed on the wire pulley frame 24. A limit switch 27 and a ratchet pawl 25 are also provided on the wire pulley frame base 51. One end of a first wire 16 passes through the wire pulley 41 and is connected to a rope winder 20. When the first wire 16 is in a tensioned state, the wire pulley frame 24 rotates through the rotating shaft 40 and touches the ratchet pawl 25. The ratchet pawl 25 separates from the ratchet wheel 26, and the wire pulley frame 24 also leaves the limit switch 27, and the curtain is in an open running state. When the first wire 16 suddenly breaks, the wire pulley frame 24 returns under the action of the torsion spring 28, touches the limit switch 27, stops the motor 21, and the ratchet pawl 25 also returns to position and catches the ratchet wheel 26, which will make one end of the upper row gear set 11 connected to the fixing member 9 on the winding spring 8 immovable. The reel 7 connected to one end of the lower fixing member 10 of the winding spring 8 will wind back the curtain cloth 17 under the action of the winding spring 8, and there will be no situation where the wire breaks and cannot be wound back. By adopting the design of different diameters at both ends of the rope winder 20 that is synchronized with the thickness change of the reel 7, when the curtain is opened and closed each time, no matter how many times it runs, it always maintains a certain elastic force and will not change. The winding spring 8 does not participate in the work and always maintains a certain elastic force, and there will be no attenuation of the elastic force, ensuring the service life of the winding spring 8. Only after the wire 16 suddenly breaks, the elastic force is released, and the winding spring 8 drives the reel 7 to wind back the curtain cloth 17.

[0071] A lever frame 42 is provided between the upper row gear set 11 and the lower row gear set 12. A rotating lever 37 is installed on the lever frame 42. A protruding lever 36 is installed on one of the gears of the lower row gear set 12. When an accidental jamming occurs, the connection will be generated through the protruding lever 36 and the rotating lever 37 to solve the jamming problem. When the first wire 16 suddenly breaks, the protruding lever 36 catches the upper row gear set 11 and stops moving. When the reel 7 winds back the curtain cloth 17, it will turn the rotating lever 37 to a 90-degree position, thus breaking the connection. Although the upper row gear set 11 cannot rotate and the motor stops running, the moving frame 6 can still manually pull out the curtain cloth, and the winding back relies on the winding force of the winding spring 8. After the first wire 16 is readjusted, rotate the rotating lever 37 back to its original position.

[0072] The rope winder 20 is provided with a wire groove 33, and the wire groove 33 is designed as a tapered shape with different diameters at both ends. Since the curtain cloth 17 is wound on the reel 7, when the curtain is unfolded and retracted, the thickness of the reel 7 changes. Therefore, the wire groove 33 on the rope winder 20 is designed as a tapered shape with different diameters at both ends to match the thickness change of the reel 7, so that the elastic force of the winding spring 8 in the reel 7 remains unchanged, and the running pulling force will not be loose or tight suddenly.

[0073] The upper frame 1 is installed with the upper curtain track 34 and the upper moving frame track 48, and the lower frame 2 is installed with the lower curtain track 35 and the lower moving frame track 49. The moving frame 6 moves between the upper moving frame track 48 and the lower moving frame track 49, and the curtain 17 moves between the upper curtain track 34 and the lower curtain track 35 to keep the curtain 17 flat. A spring piece 50 is installed on the upper curtain track 34 to keep the curtain 17 running smoothly under the condition of thermal expansion and contraction or tightening. The curtain 17 is connected to the moving frame 6 and moves between the upper curtain track 34 and the lower curtain track 35 as the moving frame 6 moves.

[0074] The upper and lower ends of the left frame 3 are provided with an upper slideway 46 and a lower slideway 47. Both the upper and lower parts of the reel 7 are provided with pulleys 29, and the pulleys 29 are connected to the upper slideway 46 and the lower slideway 47. In this way, the whole reel 7 can move within a certain range, so that the curtain on the reel 7 always runs on the upper curtain track 34 and the lower curtain track 35, ensuring the service life of the curtain 17.

[0075] The upper row of gear sets 11, the lower row of gear sets 12, the first bevel gear 14 and the second bevel gear 15 are installed on the gear rack 32. The gear rack 32 is installed on the upper part of the left frame 3. The gear rack 32 is also provided with a pulley 29, and the pulley 29 is connected to the upper slideway 46.

[0076] The heights of the reel 7 and the coil spring 8 can be adjusted arbitrarily according to the heights of the curtain 17 and the door frame.

[0077] The upper frame 1 is installed with an outer cover 5, which can protect the equipment installed in the upper frame 1 and is beautiful.

[0078] The upper frame 1 is installed with an induction probe 38 and a mosquito, fly and insect repellent device 39. Through the induction probe 38, when a person is detected, the curtain opens, and when the person leaves, the curtain closes. When the curtain opens, mosquitoes and flies may also come in together. To avoid this, a mosquito, fly and insect repellent device is installed. The whole upper, lower, left and right of the curtain are closed. When in the closed state, dust, snakes, rats and crawling insects will be isolated outside and prevented from entering the room.

[0079] Working principle: After the curtain is installed, when it is necessary to pull out the curtain cloth 17, the motor 21 is started by remote control. The motor 21 drives the transmission shaft 19 to rotate. The transmission shaft 19 drives the rope winder 20, which in turn drives the nut 22 to rotate. The rope winder 20 can translate left and right on the lead screw 23 through the thread on the nut 22. For each turn of the nut 22, the rope winder 20 will translate a pitch accordingly. The first pull wire 16 is smoothly wound around the rope winder 20 without getting tangled. The transmission shaft 19 drives the rope winder 20 to wind one end of the first pull wire 16, thereby driving the first pull wire 16 and the second pull wire 44 to pull the moving frame 6 and pull out the curtain cloth 17 from the reel 7. The transmission shaft 19 drives the first bevel gear 14, the second bevel gear 15, and the upper row of gear sets 11 to rotate forward through the universal joint 18. The upper row of gear sets 11 makes the fixing part 9 on the torsion spring 8 rotate forward, and the lower row of gear sets 12 makes the lower fixing part 10 of the torsion spring 8 rotate in reverse. The torsion spring 8 is adjusted for elasticity when pre-installed in the reel 7 and then installed in the reel 7. The elasticity of the torsion spring 8 causes the upper row of gear sets 11 and the lower row of gear sets 12 to form a forward and reverse force. The elastic force generated by the torsion spring 8 causes the reel 7 to drive the curtain cloth 17 to retract. The force of the reel 7 driving the curtain cloth 17 to retract and the force formed by the rope winder 20 pulling the first pull wire 16 and the second pull wire 44 to drive the moving frame 6 to move are a pair of opposite forces. The stable tension formed by this opposite force ensures the stable operation of the curtain cloth 17. When it is necessary to retract the curtain, reverse the rotation of the motor 21, the rope winder 20 releases the first pull wire 16, and the torsion spring 8 drives the reel 7 to retract the curtain cloth 17 to complete the operation.

[0080] When the pull wire suddenly breaks, the pull wire wheel frame 24 returns to its original position under the action of the torsion spring 28, touches the limit switch 27, stops the motor 21, and the pawl 25 also returns to its original position and catches the ratchet 26, which will make one end of the upper row of gears 11 connected to the fixing part 9 on the torsion spring 8 immovable. The reel 7 connected to one end of the lower fixing part 10 of the torsion spring 8 will, under the action of the torsion spring 8, retract the curtain cloth 17, and the situation where the curtain cannot be retracted due to the broken pull wire will not occur, solving the problem that the curtain is stuck and cannot be retracted or extended after the pull wire suddenly breaks.

[0081] When an accidental jamming occurs, the upper row of gear sets 11 stops moving. When the reel 7 retracts the curtain cloth 17, it will turn the rotary lever 36 to the 90-degree position, and the protruding lever 37 catches the upper row of gear sets 11. Although the upper row of gear sets 11 does not move, the reel 7 can still pull out the curtain by the elastic force of the torsion spring 8. After the first pull wire 16 is readjusted, turn the rotary lever 36 back to its original position.

[0082] The curtain can be manually or electrically operated. Generally, it is in the electric state. When there is a power outage, it can be manually controlled. For manual control, just pull the moving frame 6. The moving frame 6 drives the curtain cloth 17. The curtain cloth 17 drives the reel 7. The reel 7 drives the lower row of gear sets 12. Using the elastic force of the coil spring 8 to drive the upper row of gear sets 11. The upper row of gear sets 11 drives the rope winder 20 to rotate and wind up the first guy wire 16 through the second bevel gear 15, the first bevel gear 14, the universal joint 18 and the transmission shaft 19, thereby pulling out the curtain cloth 17. When it needs to be manually closed, just push the moving frame 6 to retract the curtain.

[0083] Embodiment 2

[0084] Such as Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 、 Figure 19 、 Figure 20 、 Figure 21 、 Figure 22As shown, when the manual-automatic integrated double-door curtain is in use, it includes an upper frame 1, a lower frame 2, a left frame 3, a right frame 4, two moving frames 6, two first pull wires 16, two second pull wires 44, two reels 7, two rope winders 20, a motor 21, two transmission shafts 19, two lead screws 23, two universal joints 18, a base 13, two first bevel gears 14, two second bevel gears 15, two upper row gear sets 11, two lower row gear sets 12, a bearing seat 45, a bearing 46, a fixing seat 47, and a curtain cloth 17. A motor 21 is provided in the upper frame 1. The motor 21 is fixed to the base 13 through the fixing seat 47. The base 13 is fixed in the upper frame 1. One end of a transmission shaft 19 is connected to the left side of the motor 21. The transmission shaft 19 is connected to the bearing 46. The bearing 46 is connected to the bearing seat 45. The bearing seat 45 is connected to the base 13 and fixed in the upper frame 1. The bearing 46 on the bearing seat 45 enables the transmission shaft 19 to rotate freely. The other end of the transmission shaft 19 passes through the rope winder 20, the lead screw 23 and is connected to the universal joint 18. The lead screw 23 is fixed to the bearing seat 45. The universal joint 18 is connected to the first bevel gear 14. The first bevel gear 14 is connected to the second bevel gear 15. The second bevel gear 15 is connected to the upper row gear set 11. A reel 7 is installed in the left frame 3. The curtain cloth 17 is installed on the reel 7. The curtain cloth 17 is connected to the left moving frame 6. A torsion spring 8 is installed inside the reel 7. An upper fixing member 9 is provided at the upper part of the torsion spring 8. The upper fixing member 9 is connected to the upper row gear set 11. A lower fixing member 10 is provided at the lower part of the torsion spring 8. The lower fixing member 10 is fixed to the reel 7. The reel 7 is connected to the lower row gear set 12. The torsion spring 8 is adjusted to the appropriate elastic force when pre-installed in the reel 7 and then installed in the reel 7. The elastic force of the torsion spring 8 causes the upper row gear set 11 and the lower row gear set 12 to form forces in opposite directions. The elastic force generated by the torsion spring 8 causes the reel 7 to drive the curtain cloth 17 to retract. The motor 21 drives the rope winder 20 to rotate through the transmission shaft 19. One end of the first pull wire 16 is connected to the rope winder 20. The other end of the first pull wire 16 passes through the pull wire wheel 41 and is connected to the lower part of the moving frame 6. One end of the second pull wire 44 passes through the pull wire wheel 41 and is connected to the upper part of the moving frame. The other end of the second pull wire 44 is connected to the first pull wire 16 through the fixing block 43. The first pull wire 16 and the second pull wire 44 drive the left moving frame 6 to move. The same structure as that on the left side is also installed on the right side of the motor 21. One end of a right transmission shaft 19 is connected to the right side of the motor. The transmission shaft 19 is connected to the bearing 46. The bearing 46 is connected to the bearing seat 45. The bearing seat 45 is connected to the base 13 and fixed in the upper frame 1. The bearing 46 on the bearing seat 45 enables the transmission shaft 19 to rotate freely. The other end of the transmission shaft 19 passes through the rope winder 20, the lead screw 23 and is connected to the universal joint 18. The lead screw 23 is fixed to the bearing seat 45. The universal joint 18 is connected to the first bevel gear 14. The first bevel gear 14 is connected to the second bevel gear 15. The second bevel gear 15 is connected to the upper row gear set 11. A reel 7 is installed in the right frame 4. The curtain cloth 17 is installed on the reel 7. The curtain cloth 17 is connected to the right moving frame 6. A torsion spring 8 is installed inside the reel 7. An upper fixing member 9 is provided at the upper part of the torsion spring 8. The upper fixing member 9 is connected to the upper row gear set 11. A lower fixing member 10 is provided at the lower part of the torsion spring 8. The lower fixing member 10 is fixed to the reel 7,The reel 7 is connected to the lower row of gear sets 12. When the coil spring 8 is pre-loaded into the reel 7, the elastic force is adjusted and then the coil spring 8 is installed into the reel 7. The elastic force of the coil spring 8 causes the upper row of gear sets 11 and the lower row of gear sets 12 to form forces in opposite directions. The elastic force generated by the coil spring 8 causes the reel 7 to drive the curtain cloth 17 to retract. The motor 21 drives the rope winder 20 to rotate through the transmission shaft 19. One end of the first pull wire 16 is connected to the rope winder 20, and the other end of the first pull wire 16 passes through the pull wire wheel 41 and is connected to the lower part of the moving frame 6. One end of the second pull wire 44 passes through the pull wire wheel 41 and is connected to the upper part of the moving frame 6. The other end of the second pull wire 44 is connected to the first pull wire 16 through the fixing block 43. The first pull wire 16 and the second pull wire 44 drive the right moving frame 6 to move. The elastic force generated by the coil spring 8 causes the reel 7 to drive the curtain cloth 17 to retract. The force that the reel 7 drives the curtain cloth 17 to retract and the force formed by the rope winder 20 pulling the first pull wire 16 and the second pull wire 44 to drive the moving frame 6 to move are a pair of opposite forces. The stable tension formed by this pair of opposite forces ensures the flatness of the curtain cloth 17. Whether the curtain cloth 17 expands or contracts due to temperature changes or the first pull wire 16 and the second pull wire 44 elongate, the consistency of the force can be ensured. This pair of opposite forces forms a force balance, so that when it needs to stop wherever it is pulled, it can stop at any time.

[0085] The left and right rope winders 20 are respectively connected to their respective nuts 22. The two rope winders 20 can translate left and right on the respective lead screws 23 connected to them through the threads on their respective nuts 22. The left and right translation of the rope winder 20 is to ensure that the first pull wire 16 can be wound around the rope winder 20 smoothly without getting tangled. The two transmission shafts 19 respectively drive the two rope winders 20, thereby driving their respective nuts 22 to rotate. For each rotation of the nut 22, the rope winder 20 will translate a pitch accordingly.

[0086] Ratchets 26 are respectively installed on the left and right transmission shafts 19.

[0087] The upper frame 1 is provided with a pull-wire frame base 51, on which a rotating shaft 40 is installed, which connects the pull-wire frame 24 and the torsion spring 28, and the pull-wire frame 24 is provided with a pull-wire wheel 41, and a limit switch 27 and a ratchet 25 are also provided on the pull-wire frame base 51. One end of the pull-wire 16 passes through the pull-wire wheel 41 and is connected to the rope reel 20. When the pull-wire 16 is in a tensioned state, the pull-wire frame 24 rotates through the rotating shaft 40 to hit the ratchet 25, and the ratchet 25 is separated from the ratchet 26. The frame 24 also leaves the limit switch 27, and the door curtain is in the open state. When the pull wire 16 suddenly breaks, the pull wire wheel frame 24 returns to its position under the action of the torsion spring 28, hits the limit switch 27, stops the motor 21, and the ratchet 25 also returns to its position, jamming the ratchet 26, which will make the end of the upper gear set 11 connected to the upper fixing piece 9 of the coil spring 8 remain stationary, and the reel 7 connected to one end of the lower fixing piece 10 of the coil spring 8 will roll back the curtain 17 under the action of the coil spring, and there will be no situation where the pull wire breaks and cannot be rolled back. The design of the rope reel 20 head that is synchronized with the change of the thickness of the reel 7 is adopted, so that each time the door curtain is opened and closed, no matter how many times it runs, a certain elastic force is always maintained and will not change. The coil spring 8 does not participate in the work and always maintains a certain elastic force, and there will be no attenuation of the elastic force, which ensures the life of the coil spring 8. Only when the pull wire 16 suddenly breaks, the elastic force is released, and the coil spring 8 drives the reel 7 to roll back the curtain 17.

[0088] A lever frame 42 is provided between the two upper gear sets 11 and the lower gear set 12. A rotating lever 37 is installed on the lever frame 42. A protruding lever 36 is installed on one of the gears of the lower gear set 12. If an unexpected jam occurs, the jam problem can be solved by connecting the protruding lever 36 and the rotating lever 37. When the pull wire 16 is suddenly broken, the protruding lever 36 blocks the upper gear set 11 and stops. When the reel 7 rewinds the curtain 17, the rotating lever 37 is turned to a 90-degree position, thus breaking the connection. Although the upper gear set 11 cannot rotate and the motor stops running, the moving frame 6 can still manually pull out the curtain. When rewinding, it depends on the rewinding force of the winding spring 8. After the pull wire 16 is readjusted, the rotating lever 37 can be rotated back to its position.

[0089] Both rope reels 20 are provided with a wire drawing groove 33, which is a conical design with large and small heads. Since the curtain 17 is rolled up on the reel 7, the thickness of the reel 7 changes when the door curtain is unfolded and retracted. Therefore, the wire drawing groove 33 on the rope reel 20 is a conical design with large and small heads to match the thickness change of the reel 7. In this way, the elastic force of the coil spring 8 in the reel 7 remains unchanged, and the operating tension will not fluctuate.

[0090] The upper frame 1 is installed with the upper curtain track 34 and the upper moving frame track 48, and the lower frame 2 is installed with the lower curtain track 35 and the lower moving frame track 49. The two moving frames 6 move between the upper moving frame track 48 and the lower moving frame track 49, and the curtain 17 moves between the upper curtain track 34 and the lower curtain track 35 to keep the curtain 17 flat. A spring piece 50 is installed on the upper curtain track 34 to enable the curtain 17 to operate smoothly under the condition of thermal expansion and contraction or tightening with a certain tension. The two curtains 17 are respectively connected to the moving frames 6 on the left and right sides and move between the upper curtain track 34 and the lower curtain track 35 as the moving frames 6 move.

[0091] The upper and lower ends of the left frame 3 and the right frame 4 are both provided with upper slideways 46 and lower slideways 47. The upper and lower parts of the two reels 7 are both provided with pulleys 29, and the pulleys 29 are connected to the upper slideways 46 and the lower slideways 47. In this way, the whole reel 7 can move within a certain range, so that the curtain 17 on the reel 7 always runs on the upper curtain track 34 and the lower curtain track 35, ensuring the service life of the curtain 17.

[0092] The two upper row gear sets 11, the lower row gear sets 12, the first bevel gear 14 and the second bevel gear 15 are all installed on their respective gear racks 32. The two gear racks 32 are installed on the upper parts of the left frame 3 and the right frame 4. The gear rack 32 is also provided with a pulley 29, and the pulley 29 is connected to the upper slideway 46.

[0093] The heights of the reel 7 and the coil spring 8 can be adjusted arbitrarily according to the heights of the curtain 17 and the door frame.

[0094] The upper frame 1 is installed with an outer cover 5, which can protect the equipment installed in the upper frame 1 and is beautiful.

[0095] The upper frame 1 is installed with an induction probe 38 and a mosquito, fly and insect repellent device 39. Through the induction probe 38, when a person is detected, the curtain opens, and when the person leaves, the curtain closes. When the curtain opens, mosquitoes and flies may also come in together. To avoid this, a mosquito, fly and insect repellent device is installed. The whole upper, lower, left and right of the curtain are closed. When in the closed state, dust, snakes, rats and reptiles will be isolated outside and prevented from entering the room.

[0096] Working principle: After the curtain is installed, when the curtain needs to be pulled out, the motor 21 is started by remote control. The motor 21 drives the two transmission shafts 19 to rotate. The two transmission shafts 19 respectively drive the two rope winders 20 on the left and right sides, thereby driving the respective connected nuts 22 to rotate. The rope winder 20 can move left and right on the lead screw 23 through the thread on the nut 22. For each rotation of the nut 22, the rope winder 20 will move a pitch accordingly. The two pull wires 16 are smoothly wound around their respective rope winders 20 without getting tangled. The two transmission shafts 19 respectively drive the rope winders 20 to wind one end of their respective connected pull wires 16, thereby driving the respective connected pull wires 16 and pull wires 44 to pull the moving frames 6 on the left and right sides respectively, and pulling the curtain cloths 17 on both sides out from the winding shafts 7. The two transmission shafts 19 respectively drive the first bevel gears 14, the second bevel gears 15, and the upper row of gear sets 11 to rotate forward through their respective universal joints 18. The upper row of gear sets 11 makes the fixing member 9 on the torsion spring 8 rotate forward, and the lower row of gear sets 12 makes the lower fixing member 10 of the torsion spring 8 rotate in the reverse direction. When the two torsion springs 8 are pre-loaded with their respective elastic forces and are respectively installed in their respective winding shafts 7, the elastic forces of the torsion springs 8 cause the upper row of gear sets 11 and the lower row of gear sets 12 to form a forward and reverse force. The elastic force generated by the torsion spring 8 causes the winding shaft 7 to drive the curtain cloth 17 to retract. The force of the winding shaft 7 driving the curtain cloth 17 to retract and the force formed by the rope winder 20 pulling the pull wires 16 and 44 to drive the moving frame 6 to move are a pair of opposite forces. The stable tension formed by this opposite force ensures the stable operation of the curtain cloth 17. When the two side curtains need to be retracted, the motor 21 is rotated in the reverse direction, and the two rope winders 20 respectively release their respective connected pull wires 16, and the two torsion springs 8 respectively drive the winding shafts 7 to retract the curtain cloth 17, and the operation can be completed.

[0097] The elastic force generated by the torsion spring 8 causes the winding shaft 7 to drive the curtain cloth 17 to retract. The force of the winding shaft 7 driving the curtain cloth 17 to retract and the force formed by the rope winder 20 pulling the pull wire 16 and the pull wire 44 to drive the moving frame 6 to move are a pair of opposite forces. The stable tension formed by this opposite force ensures the stable operation of the curtain cloth 17. When the curtain needs to be retracted, the motor 21 is rotated in the reverse direction, the rope winder 20 releases the pull wire 16, and the winding shaft 7 retracts the curtain cloth 17.

[0098] When the pull wire is suddenly disconnected, the pull wire wheel frame 24 returns to its original position under the action of the torsion spring 28, touches the limit switch 27, stops the motor 21, and the pawl 25 also returns to its original position and catches the ratchet 26, which will make one end of the upper row of gears 11 connected to the fixing member 9 on the torsion spring 8 immovable. The winding shaft 7 connected to one end of the lower fixing member 10 of the torsion spring 8 will, under the action of the torsion spring 8, retract the curtain cloth 17, and the situation where the curtain cloth cannot be retracted due to the sudden breakage of the pull wire will not occur, solving the problem that the curtain cloth is stuck and cannot be retracted or extended after the pull wire suddenly breaks.

[0099] When an unexpected jam occurs and the upper row of gear sets 11 stops moving, when the reel 7 winds back the curtain cloth 17, the rotary lever 36 will be turned to the 90-degree position, and the protruding lever 37 will block the upper row of gear sets 11. Although the upper row of gear sets 11 does not move, the reel 7 can still pull out the curtain by the elastic force of the coil spring 8. After the pull wire one 16 is readjusted, just rotate the rotary lever 36 back to its original position.

[0100] The curtain can be manually or electrically controlled. Generally, the electric state is used. When there is a power outage, it can be manually controlled. Manual control only needs to pull the left and right moving frames 6. The moving frame 6 drives the curtain cloth 17, the curtain cloth 17 drives the reel 7, the reel 7 drives the lower row of gear sets 12, and uses the elastic force of the coil spring 8 to drive the upper row of gear sets 11. The upper row of gear sets 11 drives the rope winder 20 to rotate through the bevel gear two 15, bevel gear one 14, universal joint 18 and transmission shaft 19, thereby winding up the pull wire one 16 and pulling out the curtain cloth 17. When it needs to be manually closed, just push the moving frame 6 to retract the curtain.

[0101] Embodiment 3

[0102] Such as Figure 1 、 Figure 2 、 Figure 6 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 、 Figure 19 、 Figure 20 、 Figure 21 、 Figure 22As shown in the figure, for the manual and automatic integrated curtain drag chain moving mode, when the installation environment requirement of the lower frame 2 is low, the bottom rail 30 can be used instead of the lower frame 2, and the drag chain 31 is adopted. The drag chain 31 cooperates with the wire rope to push and pull the moving frame 6 to move. The manual and automatic integrated curtain drag chain moving mode includes an upper frame 1, a bottom rail 30, a left frame 3, a right frame 4, a moving frame 6, a first wire rope 16, a second wire rope 44, a reel 7, a rope winder 20, a motor 21, a transmission shaft 19, a lead screw 23, a universal joint 18, a base 13, a first bevel gear 14, a second bevel gear 15, an upper row of gear sets 11, a lower row of gear sets 12, a bearing seat 45, a bearing 46, a fixing seat 47, a drag chain 31 and a curtain cloth 17. A transmission shaft 19 is arranged in the upper frame 1. The transmission shaft 19 is connected with the bearing 46. The bearing 46 is connected with the bearing seat 45. The bearing seat 45 is connected with the base 13 and fixed in the upper frame 1. The bearing 46 on the bearing seat 45 enables the transmission shaft 19 to rotate freely. One end of the transmission shaft 19 is connected with the motor 21. The motor 21 is fixed on the base 13 through the fixing seat 47. The base 13 is fixed in the upper frame 1. The other end of the transmission shaft 19 passes through the rope winder 20 and the lead screw 23 and is connected with the universal joint 18. The lead screw 23 is fixed with the bearing seat 45. The universal joint 18 is connected with the first bevel gear 14. The first bevel gear 14 is connected with the second bevel gear 15. The second bevel gear 15 is connected with the upper row of gear sets 11. A reel 7 is installed in the left frame 3. The curtain cloth 17 is installed on the reel 7. The curtain cloth 17 is connected with the moving frame 6. A coil spring 8 is installed in the reel 7. An upper fixing part 9 is arranged on the upper part of the coil spring 8. The upper fixing part 9 is connected with the upper row of gear sets 11. A lower fixing part 10 is arranged on the lower part of the coil spring 8. The lower fixing part 10 is fixed together with the reel 7. The reel 7 is connected with the lower row of gear sets 12. The coil spring 8 is adjusted with elastic force and then installed in the reel 7 when being pre-installed into the reel 7. The elastic force of the coil spring 8 enables the upper row of gear sets 11 and the lower row of gear sets 12 to form a positive and a negative force. The elastic force generated by the coil spring 8 enables the reel 7 to drive the curtain cloth 17 to retract. The motor 21 drives the rope winder 20 to rotate through the transmission shaft 19. One end of the rope winder 20 is connected with one end of the first wire rope 16. The other end of the first wire rope 16 passes through a wire rope pulley 41 and is connected with one end of the drag chain 31. The other end of the drag chain 31 is fixed at both ends of the bottom rail 30. One end of the second wire rope 44 passes through the wire rope pulley 41 and is connected with the upper part of the moving frame. The other end of the second wire rope 44 is connected with the first wire rope 16 through a fixing block 43. The first wire rope 16 and the drag chain drive the lower part of the moving frame 6 to move. The second wire rope 44 drives the upper part of the moving frame 6 to move. The elastic force generated by the coil spring 8 enables the reel 7 to drive the curtain cloth 17 to retract. The force for the reel 7 to drive the curtain cloth 17 to retract and the force formed by the rope winder 20 pulling the first wire rope 16, the drag chain 31 and the second wire rope 44 driving the moving frame 6 to move are a pair of opposite forces. The stable tension formed by this pair of opposite forces ensures the flatness of the curtain cloth 17. No matter the curtain cloth 17 expands or contracts due to heat or cold, or the first wire rope 16 and the second wire rope 44 extend, the consistency of the force can be ensured. This pair of opposite forces forms a force balance, so that when it is pulled to where it needs to stop, it can stop at any time.

[0103] The rope winder 20 is connected to the nut 22. The rope winder 20 can translate left and right on the lead screw 23 through the threads on the nut 22. The left and right translation of the rope winder 20 is to ensure that the pulling wire 16 can be smoothly wound around the rope winder 20 without getting tangled. The transmission shaft 19 drives the rope winder 20, which in turn drives the nut 22 to rotate. For each full rotation of the nut 22, the rope winder 20 will translate by one pitch accordingly.

[0104] A ratchet 26 is installed on the transmission shaft 19.

[0105] A wire pulley frame base 51 is installed in the upper frame 1. A rotating shaft 40 is installed on the wire pulley frame base 51. The rotating shaft 40 is connected to the wire pulley frame 24 and the torsion spring 28. A wire pulley 41 is installed on the wire pulley frame 24. A limit switch 27 and a pawl 25 are also provided on the wire pulley frame base 51. One end of the pulling wire 16 passes through the wire pulley 41 and is connected to the rope winder 20. When the pulling wire 16 is in a taut state, the wire pulley frame 24 rotates through the rotating shaft 40 and touches the pawl 25, and the pawl 25 separates from the ratchet 26. The wire pulley frame 24 also moves away from the limit switch 27, and the curtain is in the open running state. When the pulling wire 16 suddenly breaks, the wire pulley frame 24 returns to its original position under the action of the torsion spring 28, touches the limit switch 27, stops the motor 21, and the pawl 25 also returns to its original position and catches the ratchet 26, which will make one end of the upper row gear set 11 connected to the fixing member 9 of the winding spring 8 immovable. The scroll 7 connected to one end of the lower fixing member 10 of the winding spring 8 will wind back the curtain cloth 17 under the action of the winding spring, and there will be no situation where the pulling wire breaks and cannot be wound back. By adopting the design of the variable diameter of the rope winder 20 that is synchronized with the thickness change of the scroll 7, every time the curtain is opened and closed, no matter how many times it runs, it always maintains a certain elastic force without change. The winding spring 8 does not participate in the work and always maintains a certain elastic force without attenuation of the elastic force, ensuring the service life of the winding spring 8. Only after the pulling wire 16 suddenly breaks, the elastic force is released, and the winding spring 8 drives the scroll 7 to wind back the curtain cloth 17.

[0106] A lever frame 42 is provided between the upper row gear set 11 and the lower row gear set 12. A rotating lever 37 is installed on the lever frame 42. A protruding lever 36 is installed on one of the gears of the lower row gear set 12. In case of accidental jamming, the connection is generated through the protruding lever 36 and the rotating lever 37 to solve the jamming problem. When the pulling wire 16 suddenly breaks, the protruding lever 36 catches the upper row gear set 11 and stops moving. When the scroll 7 winds back the curtain cloth 17, it will turn the rotating lever 37 to the 90-degree position, thus breaking the connection. Although the upper row gear set 11 cannot rotate and the motor stops running, the moving frame 6 can still manually pull out the curtain cloth, and the winding back relies on the winding force of the winding spring 8. After the pulling wire 16 is readjusted, just rotate the rotating lever 37 back to its original position.

[0107] The rope winding device 20 is provided with a wire drawing groove 33, and the wire drawing groove 33 is designed as a tapered shape with different diameters at both ends. Since the curtain cloth 17 is wound around the reel 7, when the curtain is unfolded and retracted, the thickness of the reel 7 changes. Therefore, the wire drawing groove 33 on the rope winding device 20 is designed as a tapered shape with different diameters at both ends to match the change in the thickness of the reel 7, so that the elastic force of the coil spring 8 in the reel 7 remains unchanged and the operating tension will not be loose or tight suddenly.

[0108] The upper frame 1 is installed with a curtain upper track 34 and a moving frame upper track 48, and the lower frame 2 is installed with a curtain lower track 35 and a moving frame lower track 49. The moving frame 6 moves between the moving frame upper track 48 and the moving frame lower track 49, and the curtain cloth 17 moves between the curtain upper track 34 and the curtain lower track 35 to keep the curtain cloth 17 flat. A spring piece 50 is installed on the curtain upper track 34 to keep the curtain cloth 17 running smoothly with a certain tension in case of thermal expansion and contraction or tightening. The curtain cloth 17 is connected to the moving frame 6 and moves between the curtain upper track 34 and the curtain lower track 35 as the moving frame 6 moves.

[0109] The upper and lower ends of the left frame 3 are provided with an upper slideway 46 and a lower slideway 47. Pulleys 29 are provided at the upper and lower parts of the reel 7, and the pulleys 29 are connected to the upper slideway 46 and the lower slideway 47. In this way, the whole reel 7 can move within a certain range, so that the curtain cloth on the reel 7 always runs on the curtain upper track 34 and the curtain lower track 35, ensuring the service life of the curtain cloth.

[0110] The upper row of gear sets 11, the lower row of gear sets 12, the first bevel gear 14 and the second bevel gear 15 are installed on the gear rack 32. The gear rack 32 is installed on the upper part of the left frame 3. A pulley 29 is also provided on the gear rack 32, and the pulley 29 is connected to the upper slideway 46.

[0111] The heights of the reel 7 and the coil spring 8 can be adjusted arbitrarily according to the heights of the curtain cloth 17 and the door frame.

[0112] The upper frame 1 is installed with an outer cover 5, which can protect the equipment installed in the upper frame 1 and is beautiful.

[0113] The upper frame 1 is installed with an induction probe 38 and a mosquito, fly and insect repellent device 39. Through the induction probe 38, when a person is detected, the curtain opens, and when the person leaves, the curtain closes. When the curtain opens, mosquitoes and flies may also come in. To avoid this, a mosquito, fly and insect repellent device is installed. The whole curtain is closed on the top, bottom, left and right. When in the closed state, dust, snakes, rats and crawling insects will be isolated outside and prevented from entering the room.

[0114] Working principle: After the curtain is installed, when it is necessary to pull out the curtain, the motor 21 is started by remote control. The motor 21 drives the transmission shaft 19 to rotate. The transmission shaft 19 drives the rope winder 20, which in turn drives the nut 22 to rotate. The rope winder 20 can move left and right on the lead screw 23 through the thread on the nut 22. For each rotation of the nut 22, the rope winder 20 will move a pitch accordingly. The first pull wire 16 is smoothly wound around the rope winder 20 without getting tangled. The transmission shaft 19 drives the rope winder 20 to wind one end of the first pull wire 16. One end of the first pull wire 16 is connected to the drag chain 31, and the other end of the drag chain 31 is fixed to one end of the bottom rail 30, thereby driving the first pull wire 16 and the second pull wire 44 to pull the moving frame 6 to pull the curtain cloth 17 out from the reel 7. The second pull wire 44 pulls the upper part of the moving frame 6, and the first pull wire 16 is connected to the drag chain 31 to drive the lower part of the moving frame 6 to move. In this way, when the requirements for the lower frame 2 are relatively low, this method can be adopted. The transmission shaft 19 drives the first bevel gear 14, the second bevel gear 15, and the upper row of gear sets 11 to rotate forward through the universal joint 18. The upper row of gear sets 11 makes the fixing member 9 on the torsion spring 8 rotate forward, and the lower row of gear sets 12 makes the lower fixing member 10 of the torsion spring 8 rotate in the reverse direction. The torsion spring 8 is adjusted to the appropriate elastic force when it is pre-loaded into the reel 7 and then installed in the reel 7. The elastic force of the torsion spring 8 makes the upper row of gear sets 11 and the lower row of gear sets 12 form a forward and reverse force. The elastic force generated by the torsion spring 8 makes the reel 7 drive the curtain cloth 17 to retract. The force for the reel 7 to drive the curtain cloth 17 to retract and the force for the rope winder 20 to pull the first pull wire 16 and the second pull wire 44 to drive the moving frame 6 to move are a pair of opposite forces. The stable tension formed by this opposite force ensures the stable operation of the curtain cloth 17. When it is necessary to retract the curtain, the motor 21 rotates in the reverse direction, and the rope winder 20 releases the first pull wire 16, and the reel 7 winds back the curtain cloth 17.

[0115] When the pull wire suddenly breaks, the pull wire wheel frame 24 returns to its original position under the action of the torsion spring 28, touches the limit switch 27, stops the motor 21, and the pawl 25 also returns to its original position and catches the ratchet 26, which will make one end of the upper row of gears 11 connected to the fixing member 9 on the torsion spring 8 immovable. The reel 7 connected to one end of the lower fixing member 10 of the torsion spring 8 will, under the action of the torsion spring 8, wind back the curtain cloth 17, and the situation where the curtain cannot be wound back after the pull wire breaks will not occur, solving the problem that the curtain is stuck and cannot be retracted or extended after the pull wire suddenly breaks.

[0116] When an accidental jamming occurs, the upper row of gear sets 11 stops moving. When the reel 7 winds back the curtain cloth 17, it will turn the rotary lever 36 to the 90-degree position, and the protruding lever 37 catches the upper row of gear sets 11. Although the upper row of gear sets 11 does not move, the reel 7 can still pull out the curtain by the elastic force of the torsion spring 8. After the first pull wire 16 is readjusted, just rotate the rotary lever 36 back to its original position.

[0117] The curtain can be manually or automatically controlled. Generally, the automatic state is used. When there is a power outage, it can be manually controlled. For manual control, just pull the moving frame 6. The moving frame 6 drives the curtain cloth 17. The curtain cloth 17 drives the scroll 7. The scroll 7 drives the lower row of gear sets 12. The elastic force of the torsion spring 8 is used to drive the upper row of gear sets 11. The upper row of gear sets 11 drives the rope winder 20 to rotate and wind up the first guy wire 16 through the second bevel gear 15, the first bevel gear 14, the universal joint 18 and the transmission shaft 19, thereby pulling out the curtain. When it is necessary to close the curtain manually, just push the moving frame 6 to retract the curtain.

[0118] The above is the single-door opening mode of the drag chain 31. The drag chain form can also be designed into a double-door opening form according to needs. The double-door opening form is based on Embodiment 2. The connection mode between the lower guy wire and the drag chain is the same as the principle of the single-door curtain and can be made according to needs.

[0119] The above are the embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various improvements and changes can be made to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A manual and automatic door curtain, comprising an upper frame (1), a lower frame (2), a left frame (3), a right frame (4), a movable frame (6), a first pull wire (16), a second pull wire (44), a reel (7), a rope reel (20), a motor (21), a transmission shaft (19), a lead screw (23), a universal joint (18), a base (13), a first umbrella wheel (14), a second umbrella wheel (15), an upper gear set (11), a lower gear set (12), a bearing seat (45), a bearing (46), a fixing seat (47) and a curtain (17), characterized in that: The upper frame (1) is provided with a transmission shaft (19), the transmission shaft (19) is connected to a bearing (46), the bearing (46) is connected to a bearing seat (45), the bearing seat (45) is connected to a base (13) and fixed in the upper frame (1), one end of the transmission shaft (19) is connected to a motor (21), the motor (21) is fixed to the base (13) via a fixing seat (47), the base (13) is fixed in the upper frame (1), the other end of the transmission shaft (19) passes through a rope reel (20), a lead screw (23) and is connected to a universal joint (18), the lead screw (23) is connected to the universal joint (18), and the lead screw (23) is connected to the universal joint (18). 3) and the bearing seat (45), the universal joint (18) is connected to the umbrella wheel 1 (14), the umbrella wheel 1 (14) is connected to the umbrella wheel 2 (15), the umbrella wheel 2 (15) is connected to the upper gear set (11), the reel (7) is installed in the left frame (3), the curtain (17) is installed on the reel (7), the curtain (17) is connected to the moving frame (6), the reel (7) is installed in the reel spring (8), the upper part of the reel spring (8) is provided with an upper fixing member (9), the upper fixing member (9) is connected to the upper gear set (11), and the lower part of the reel spring (8) is provided with a lower fixing member (1 0, the lower fixing member (10) is fixed with the reel (7), the reel (7) is connected with the lower gear group (12), the coil spring (8) is adjusted with elastic force when pre-installed into the reel (7) and installed in the reel (7), the elastic force of the coil spring (8) causes the upper gear group (11) and the lower gear group (12) to form a positive and negative force, the elastic force generated by the coil spring (8) causes the reel (7) to drive the curtain (17) to rewind, the rope reel (20) is connected with one end of the pull wire (16), and the other end of the pull wire (16) passes through the pull wire wheel (41) and is connected to the movable frame (6 ), one end of the second pull wire (44) passes through the pull wire wheel (41) and is connected to the upper part of the moving frame (6), the other end of the second pull wire (44) is connected to the first pull wire (16) through the fixed block (43), the first pull wire (16) and the second pull wire (44) drive the moving frame (6) to move, the force of the reel (7) driving the curtain (17) to rewind and the force formed by the rope reel (20) pulling the first pull wire (16) and the second pull wire (44) to drive the moving frame (6) to move are a pair of opposite forces, and the tension formed by the opposite forces ensures the flatness of the curtain (17).

2. The manual and automatic door curtain according to claim 1, characterized in that: The rope reel (20) is connected to the nut (22). The rope reel (20) can be translated left and right on the lead screw (23) through the thread on the nut (22). The rope reel (20) can be translated left and right so that the pull wire (16) can be stably wound around the rope reel (20) without being tangled. The transmission shaft (19) drives the rope reel (20) and thus drives the nut (22) to rotate. For each rotation of the nut (22), the rope reel (20) will translate one pitch accordingly.

3. The manual and automatic door curtain according to claim 1, characterized in that: A ratchet (26) is installed on the transmission shaft (19), a wire pulley frame base (51) is installed in the upper frame (1), a rotating shaft (40) is installed on the wire pulley frame base (51), the rotating shaft (40) is connected to the wire pulley frame (24) and the torsion spring (28), a wire pulley (41) is installed on the wire pulley frame (24), and a limit switch (27) and a ratchet (25) are also provided on the wire pulley frame base (51), one end of the wire pulley (16) passes through the wire pulley (41) and is connected to the rope reel (20), when the wire pulley (16) is in a tensioned state, the wire pulley frame (24) rotates through the rotating shaft (40) to hit the ratchet (25) ), the pawl (25) is separated from the ratchet (26), the pull-wire wheel frame (24) also leaves the limit switch (27), and the door curtain is in the open state. When the pull wire (16) is suddenly broken, the pull-wire wheel frame (24) returns to its original position under the action of the torsion spring (28), hits the limit switch (27), and stops the motor (21). The pawl (25) also returns to its original position and blocks the ratchet (26), which will make the end of the upper gear set (11) connected to the upper fixing member (9) of the winding spring (8) immobile, and the winding shaft (7) connected to one end of the lower fixing member (10) of the winding spring (8) will rewind the curtain (17) under the action of the winding spring (8).

4. The manual and automatic door curtain according to claim 1, characterized in that: A lever frame (42) is provided between the upper gear set (11) and the lower gear set (12). A rotating lever (37) is installed on the lever frame (42). One of the gears of the lower gear set (12) is installed with a protruding lever (36). When an unexpected jam occurs, the jam problem is solved by connecting the protruding lever (36) and the rotating lever (37). When the pull wire (16) is suddenly broken, the protruding lever (36) blocks the upper gear set (11) and stops it. When the reel (7) rewinds the curtain (17), the rotating lever (37) is turned to a 90° position. At this time, the connection is broken, the upper gear set (11) cannot rotate, the motor (21) stops running, the moving frame (6) manually pulls out the curtain (17), and when rewinding, the rewinding force of the winding spring (8) rewinds synchronously. After the pull wire (16) is readjusted, the rotating lever (37) is rotated back to its original position.

5. The manual and automatic door curtain according to claim 1, characterized in that: The rope reel (20) is provided with a wire pulling groove (33), and the wire pulling groove (33) is of a large and small conical design.

6. The manual and automatic door curtain according to claim 1, characterized in that: The upper frame (1) is installed with a curtain upper track (34) and a movable frame upper track (48); the lower frame (2) is installed with a curtain lower track (35) and a movable frame lower track (49); the movable frame (6) moves between the movable frame upper track (48) and the movable frame lower track (49); the curtain (17) moves between the curtain upper track (34) and the curtain lower track (35); a spring sheet (50) is installed on the curtain upper track (34); the curtain (17) is connected to the movable frame (6) and moves between the curtain upper track (34) and the curtain lower track (35) as the movable frame (6) moves.

7. The manual and automatic door curtain according to claim 1, characterized in that: The left frame (3) is provided with an upper slideway (46) and a lower slideway (47) at the upper and lower ends, and pulleys (29) are provided at the upper and lower parts of the reel (7). The pulleys (29) are connected to the upper slideway (46) and the lower slideway (47), so that the reel (7) as a whole can move within a certain range, and the curtain on the reel (7) always runs on the curtain upper track (34) and the curtain lower track (35).

8. The manual and automatic door curtain according to claim 1, characterized in that: The upper gear set (11), the lower gear set (12), the first umbrella wheel (14) and the second umbrella wheel (15) are mounted on a gear rack (32), the gear rack (32) is mounted on the upper part of the left frame (3), and a pulley (29) is also provided on the gear rack (32), and the pulley (29) is connected to the upper slideway (46).

9. The manual and automatic door curtain according to claim 1, characterized in that: The upper frame (1) is mounted with an outer cover (5), a sensing probe (38) and a mosquito, fly and insect repellent device (39).

10. The manual and automatic door curtain according to claim 1, characterized in that: When the installation environment requirements of the lower frame (2) are low, the bottom rail (30) can be used to replace the lower frame (2), and a drag chain (31) is adopted. The drag chain (31) and the pull wire cooperate to push and pull the movable frame (6) to move.

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