Upward folding door

Abstract

The present invention relates to the technical field of folding and closing doors, and in particular to an upward folding door, comprising a main frame installed on the outside of a door opening, a transmission top cover fixedly installed on the upper end of the main frame by bolts, and a cylindrical motor installed inside the transmission top cover. An upward folding door of the present invention is composed of a main frame, a transmission top cover with a built-in cylindrical motor, an upper flip door frame, a lower flip door frame, and a longitudinal guide rail. A lateral guide tightening device for cooperating with flipping, folding, and tightening is bolted to the outer connecting ends of the upper and lower flip door frames. A bottom guide seat is movably connected to the bottom of both ends of the lower flip door frame through a lower lateral rotating shaft. The first and second transmission gears symmetrically arranged on the outer surface of the bottom guide seat greatly improve the stability of the lower flip door frame during flipping and lifting, reduce friction resistance and energy consumption, and the entire transmission mechanism has strong stability, long service life, and high transmission efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of folding closed doors, in particular to an upward folding door. Background Art

[0002] Folding doors are mainly used for partitions in workshops, shopping malls, office buildings, showrooms and home decoration. They can effectively play the role of heat insulation, dust prevention, noise reduction, sound insulation, shielding, etc. At present, the folding doors on the market have a simple structure, and the transmission method is mostly through the transmission belt. The service life of the transmission mechanism is limited and the stability is poor. At the same time, the friction resistance of the lateral transmission limit device is relatively large, and the energy consumption is relatively high. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, an improved upward folding door is provided to solve the problems that the folding doors currently on the market have a simple structure, the transmission method is mostly through rope transmission, the service life of the transmission mechanism is limited, the stability is poor, and at the same time, the friction resistance of the lateral transmission limit device is relatively large, and the energy consumption is relatively high.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an upward folding door, comprising a main frame installed on the outside of the door opening, a transmission top cover fixedly installed on the upper end of the main frame by bolts, and a cylindrical motor installed inside the transmission top cover, wherein an upper flip door frame and a lower flip door frame are movably assembled inside the main frame, an internal horizontal rotating shaft is horizontally arranged inside the transmission top cover, longitudinal guide rails are arranged on the inner walls on both sides of the main frame, and an internal longitudinal screw rod that is gear-driven with the two ends of the internal horizontal rotating shaft is longitudinally arranged inside the longitudinal guide rail, and the upper ends of both sides of the upward flip door frame are fixed with An integral structure with a lateral rotating shaft having a lateral limiting roller on the outside, the upper flip door frame is inserted into the corresponding position of the longitudinal guide rail and movably connected to the main frame through the lateral limiting roller, the lower ends of both sides of the lower flip door frame are fixedly connected with lower lateral rotating shafts protruding toward the corresponding position of the longitudinal guide rail, a bottom guide seat is arranged inside the longitudinal guide rail, the lower flip door frame is inserted into the bottom guide seat through the lower lateral rotating shaft and movably assembled with the bottom guide seat, and the outer sides of the upper flip door frame and the lower flip door frame are fixed with lateral guide tightening devices on the connecting ends by bolts.

[0005] Furthermore, in order to cooperate with the lifting adjustment, improve the transmission stability and reduce the transmission friction resistance, the bottom guide seat is provided with an internal threaded assembly through hole that matches the internal longitudinal screw rod in the longitudinal direction, and the bottom guide seat is provided with a lateral assembly blind hole that matches the lower lateral rotating shaft on the outer side surface near the lower flip door frame. The lower flip door frame is inserted into the lateral assembly blind hole through the lower lateral rotating shaft and is movably connected to the bottom guide seat. The left and right outer sides of the bottom guide seat are symmetrically provided with eight first transmission grooves for built-in first guide wheels at the top corner position, and the front and rear ends of the bottom guide seat are symmetrically provided with four second transmission grooves for built-in second guide wheels at the right edge position.

[0006] Furthermore, in order to cooperate with the installation and transmission of the top power mechanism, a first fixed bracket for fixing the L-shaped cylindrical motor and a second fixed bracket for improving the transmission stability of the cylindrical motor are bolted and fixedly connected on the inner wall of the rear side of the transmission top cover, the internal transverse rotating shaft transversely penetrates the interior of the second fixed bracket and is movably assembled with the second fixed bracket, the outer side of the internal transverse rotating shaft is axially fixedly connected with a first transmission gear, and the right end rotating shaft of the cylindrical motor is axially fixedly connected with a second transmission gear meshing with the first transmission gear.

[0007] Furthermore, in order to facilitate flipping and tightening, the lateral guide tightening device includes a lateral linkage shaft fixedly installed at both ends of the lower flip door frame and a lateral linkage bracket plate fixedly installed at both ends of the upper flip door frame by bolts, and the lateral linkage bracket plate is provided with an arc-shaped extrusion limit groove.

[0008] Furthermore, in order to improve the lateral sealing and limiting capabilities, both ends of the outer sides of the upper flip door frame and the lower flip door frame are provided with lateral limiting baffles.

[0009] Furthermore, in order to cooperate with the lateral transmission, both ends of the internal transverse rotating shaft and the top end of the internal longitudinal screw rod are axially fixedly connected with bevel gears for meshing transmission.

[0010] Furthermore, in order to improve assembly stability and reduce rolling friction, the outer side surface of the bottom guide seat is located outside the lateral assembly blind hole and has an integrated guide tube protruding outward. The inner tube diameter of the guide tube is the same as the inner hole diameter of the lateral assembly blind hole, and the inner wall of the guide tube and the outer side surface of the lower lateral rotating shaft are movably connected through a ball bearing.

[0011] The beneficial effects of the present invention are:

[0012] (1) The folding door of the present invention is composed of a main frame, a transmission top cover with a built-in cylindrical motor, an upper flip door frame, a lower flip door frame and a longitudinal guide rail. The lateral guide tightening device for flipping, folding and tightening is fixed by bolts on the outer connecting ends of the upper and lower flip door frames. The bottom of both ends of the lower flip door frame is movably connected with a bottom guide seat through a lower lateral rotating shaft. The first and second transmission gears are symmetrically arranged on the outer surface of the bottom guide seat, thereby greatly improving the stability of the lower flip door frame during flipping and lifting, and reducing friction resistance and energy consumption.

[0013] (2) The transmission top cover and the longitudinal guide rail are internally installed with two ends of the internal transverse rotating shaft and an internal longitudinal screw rod which are driven by bevel gear meshing. The internal longitudinal screw rod is inserted into the internal threaded assembly through hole in the bottom guide seat to control the lifting and lowering of the bottom guide seat inside the longitudinal guide rail, thereby driving the upper and lower flip door frames to flip, fold and lift. The entire transmission mechanism has strong stability, long service life and high transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a cross-sectional view of the interior of the transmission top cover in the present invention.

[0017] Figure 3 It is a cross-sectional view of the bottom guide seat in the present invention.

[0018] Figure 4 It is a schematic structural diagram of the lateral guide tightening device in the present invention.

[0019] In the figure: 1. main frame, 2. transmission top cover, 3. cylindrical motor, 4. upper flip door frame, 5. lower flip door frame, 6. internal horizontal shaft, 7. longitudinal guide rail, 8. internal longitudinal screw, 9. lateral limit roller, 10. lower lateral shaft, 11. bottom guide seat, 12. internal thread assembly through hole, 13. lateral assembly blind hole, 14. first guide wheel, 15. first transmission groove, 16. second guide wheel, 17. second transmission groove, 18. first fixed bracket, 19. second fixed bracket, 20. first transmission gear, 21. second transmission gear, 22. lateral linkage shaft, 23. lateral linkage bracket plate, 24. arc extrusion limit groove, 25. lateral limit baffle, 26. bevel gear, 27. guide tube, 28. ball bearing. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0021] Figure 1 and Figure 2 The folding door shown in the figure comprises a main frame 1 installed on the outside of the door opening, a transmission top cover 2 fixedly installed on the upper end of the main frame 1 by bolts, and a cylindrical motor 3 installed inside the transmission top cover 2. An upper flip door frame 4 and a lower flip door frame 5 are movably assembled inside the main frame 1. An internal horizontal rotating shaft 6 is transversely arranged inside the transmission top cover 2. A longitudinal guide rail 7 is arranged on the inner wall of both sides of the main frame 1. An internal longitudinal screw rod 8 driven by gears at both ends of the internal horizontal rotating shaft 6 is longitudinally arranged inside the longitudinal guide rail 7. Side limit rollers with outer sleeves are fixed on the upper ends of both sides of the upper flip door frame 4. 9, the upper lateral rotating shaft of the integrated structure, the upper flip door frame 4 is inserted into the corresponding position of the longitudinal guide rail 7 and is movably connected to the main frame 1 through the lateral limiting roller 9, the lower ends of both sides of the lower flip door frame 5 are fixedly connected with the lower lateral rotating shaft 10 protruding to the corresponding position of the longitudinal guide rail 7, and the longitudinal guide rail 7 is provided with a bottom guide seat 11. The lower flip door frame 5 is inserted into the bottom guide seat 11 through the lower lateral rotating shaft 10 and is movably assembled with the bottom guide seat 11. The outer sides of the upper flip door frame 4 and the lower flip door frame 5 are located on the connecting end and are fixed with lateral guide tightening devices by bolts.

[0022] Embodiment: The cylindrical motor 3 drives the internal transverse rotating shaft 6 to rotate through the gears, and the internal transverse rotating shaft 6 drives the internal longitudinal screw 8 to rotate synchronously through the bevel gears 26 at both ends, and the internal longitudinal screw 8 drives the bottom guide seat 11 to rise and fall, and the bottom guide seat 11 drives the lower flip door frame 5 to rise and fall, and the lower flip door frame 5 drives the lateral linkage shaft 22 to lift inside the arc extrusion limit groove 24, thereby controlling the upper end of the lower flip door frame 5 to bend forward, driving the lower end of the upper flip door frame 4 to bend forward, and at the same time the lower flip door frame 5 continues to lift upward; when the cylindrical motor 3 rotates in the opposite direction, it drives the upper flip door frame 4 to flip downward, and the lower flip door frame 5 to descend, and the lateral linkage shaft 22 descends inside the arc extrusion limit groove 24, and is stretched downward through the arc extrusion limit groove 24, and finally the upper and lower flip door frames are vertically flattened, and the lower end of the upper flip door frame 4 and the inner side of the upper end of the lower flip door frame 5 are movably connected and assembled through a movable connecting bracket.

[0023] like Figure 3As shown, in order to cooperate with the lifting adjustment, improve the transmission stability and reduce the transmission friction resistance, an internal threaded assembly through hole 12 cooperating with the internal longitudinal screw rod 8 is longitudinally opened inside the bottom guide seat 11, and a lateral assembly blind hole 13 cooperating with the lower lateral rotating shaft is opened on the outer side of the bottom guide seat 11 near the lower flip door frame 5. The lower flip door frame 5 is inserted into the lateral assembly blind hole 13 through the lower lateral rotating shaft 10 and is movably connected to the bottom guide seat 11. The left and right outer sides of the bottom guide seat 11 are symmetrically opened at the top corner position with eight first transmission grooves 15 with built-in first guide wheels 14, and the front and rear ends of the bottom guide seat 11 are located at the right edge position. Four second transmission grooves 17 with built-in second guide wheels 16 are symmetrically opened. Furthermore, in order to cooperate with the installation and transmission of the top power mechanism, a first fixed bracket 18 for fixing the L-shaped cylindrical motor 3 and a second fixed bracket 19 for improving the transmission stability of the cylindrical motor 3 are bolted and fixedly connected on the inner wall on the rear side of the transmission top cover 2. The internal transverse rotating shaft 6 transversely penetrates the second fixed bracket 19 and is movably assembled with the second fixed bracket 19. The outer side of the internal transverse rotating shaft 6 is axially fixedly connected with a first transmission gear 20, and the right end rotating shaft of the cylindrical motor 3 is axially fixedly connected with a second transmission gear 21 meshing with the first transmission gear 20.

[0024] like Figure 4 As shown, in order to facilitate flipping and tightening, the lateral guide tightening device includes a lateral linkage shaft 22 fixedly mounted at both ends of the lower flip door frame 5 and a lateral linkage bracket plate 23 fixedly mounted at both ends of the upper flip door frame 4 by bolts. An arc-shaped extrusion limit groove 24 is provided on the lateral linkage bracket plate 23. Further, in order to improve the lateral sealing and limiting capabilities, the upper flip door frame 4 and the lower flip door frame 5 have lateral limit baffles 25 at both ends of the outer side surfaces. Further, in order to cooperate with the lateral transmission, both ends of the internal transverse rotating shaft 6 and the top end of the internal longitudinal screw rod 8 are axially fixedly connected with a bevel gear 26 for meshing transmission. Further, in order to improve the assembly stability and reduce the rolling friction, the outer side surface of the bottom guide seat 11 is located on the outer periphery of the lateral assembly blind hole 13 and has an outwardly protruding integrated structure guide tube 27. The inner tube diameter of the guide tube 27 is the same as the inner hole diameter of the lateral assembly blind hole 13. The inner wall of the guide tube 27 and the outer side surface of the lower lateral rotating shaft 10 are movably connected through a ball bearing 28.

[0025] The beneficial effects of the present invention are:

[0026] (1) The folding door of the present invention is composed of a main frame 1, a transmission top cover 2 with a built-in cylindrical motor 3, an upper flip door frame 4, a lower flip door frame 5 and a longitudinal guide rail 7. The lateral guide tightening device for flipping, folding and tightening is fixed by bolts at the outer connecting ends of the upper and lower flip door frames. The bottom of both ends of the lower flip door frame 5 is movably connected with a bottom guide seat 11 through a lower lateral rotating shaft. The first and second transmission gears are symmetrically arranged on the outer surface of the bottom guide seat 11, thereby greatly improving the stability of the lower flip door frame 5 during flipping and lifting, and reducing friction resistance and energy consumption.

[0027] (2) The transmission top cover 2 and the longitudinal guide rail 7 are internally installed with the two ends of the internal transverse rotating shaft 6 and the internal longitudinal screw 8 which are meshed and driven by the bevel gear 26. The internal longitudinal screw 8 is inserted into the internal threaded assembly through hole 12 in the bottom guide seat 11 to control the bottom guide seat 11 to rise and fall inside the longitudinal guide rail 7, thereby driving the upper and lower flip door frames to flip, fold and rise. The entire transmission mechanism has strong stability, long service life and high transmission efficiency.

[0028] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A folding door, comprising a main frame (1) mounted on the outside of a door opening, a transmission cover (2) fixed to the upper end of the main frame (1) by bolts, and a cylindrical motor (3) mounted inside the transmission cover (2), wherein: The main frame (1) is internally provided with an upper flip door frame (4) and a lower flip door frame (5), the transmission top cover (2) is provided with an internal horizontal rotating shaft (6) in the horizontal direction, the inner walls on both sides of the main frame (1) are provided with longitudinal guide rails (7), the longitudinal guide rails (7) are provided with internal longitudinal screw rods (8) which are gear-driven with the two ends of the internal horizontal rotating shaft (6), the upper ends of both sides of the upper flip door frame (4) are fixed with an integral structure upper lateral rotating shaft with a lateral limiting roller (9) on the outer side, and the upper flip door frame (4) is inserted into the corresponding lateral rotating shaft through the lateral limiting roller (9). The interior of the corresponding longitudinal guide rail (7) and the interior of the main frame (1) are movably connected, the lower ends of both sides of the lower flip door frame (5) are fixedly connected with lower lateral rotating shafts (10) protruding toward the interior of the corresponding longitudinal guide rail (7), the interior of the longitudinal guide rail (7) is provided with a bottom guide seat (11), the lower flip door frame (5) is inserted into the interior of the bottom guide seat (11) through the lower lateral rotating shaft (10) and movably assembled with the bottom guide seat (11), and the outer sides of the upper flip door frame (4) and the lower flip door frame (5) are located on the connection end and fixed with lateral guide tightening devices by bolts; The bottom guide seat (11) is provided with an internal threaded assembly through hole (12) in the longitudinal direction and matched with the internal longitudinal screw rod (8); the bottom guide seat (11) is provided with a lateral assembly blind hole (13) in the outer side surface near the lower flip door frame (5) and matched with the lower lateral rotation shaft (10); the lower flip door frame (5) is inserted into the lateral assembly blind hole (13) through the lower lateral rotation shaft (10) and is movably connected with the bottom guide seat (11); the left and right outer side surfaces of the bottom guide seat (11) are symmetrically provided with eight first transmission grooves (15) with built-in first guide wheels (14) at the top corner positions; the front and rear ends of the bottom guide seat (11) are symmetrically provided with four second transmission grooves (17) with built-in second guide wheels (16) at the right edge positions; The lateral guide tightening device comprises a lateral linkage shaft (22) fixedly mounted on both ends of the lower flip door frame (5) and a lateral linkage bracket plate (23) fixedly mounted on both ends of the upper flip door frame (4) by bolts, and an arc-shaped extrusion limit groove (24) is formed on the lateral linkage bracket plate (23).

2. The folding door according to claim 1, characterized in that: A first fixing bracket (18) for fixing and installing an L-shaped cylindrical motor (3) and a second fixing bracket (19) for improving the transmission stability of the cylindrical motor are fixedly connected by bolts on the inner wall at the rear side of the transmission top cover (2); the internal transverse rotating shaft (6) transversely penetrates the interior of the second fixing bracket (19) and is movably assembled with the second fixing bracket (19); a first transmission gear (20) is axially fixedly connected to the outer side of the internal transverse rotating shaft (6); and a second transmission gear (21) meshing with the first transmission gear (20) is axially fixedly connected to the rotating shaft at the right end of the cylindrical motor (3).

3. The upward folding door according to claim 1, characterized in that: Both ends of the outer side surfaces of the upper flip door frame (4) and the lower flip door frame (5) are provided with lateral limiting baffles (25).

4. The upward folding door according to claim 1, characterized in that: Both ends of the internal transverse rotating shaft (6) and the top end of the internal longitudinal screw rod (8) are axially fixedly connected with bevel gears (26) for meshing transmission.

5. The upward folding door according to claim 1, characterized in that: The outer side surface of the bottom guide seat (11) is located outside the lateral assembly blind hole (13) and has an outwardly protruding integral structure guide tube (27); the inner tube diameter of the guide tube (27) is the same as the inner hole diameter of the lateral assembly blind hole (13); the inner wall of the guide tube (27) and the outer side surface of the lower lateral rotating shaft (10) are movably connected via a ball bearing (28).

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