An electric control system for a two-way automatic folding door

Abstract

The present invention discloses an electric control system for a two-way automatic folding door, comprising a back panel mounted on a wall, the back panel being connected to a track, two slings being slidably connected to the track, the slings being connected to a drive device via a transmission assembly, and each sling being movably connected to a crank arm, which is connected to a movable door leaf of the automatic folding door; the sling is provided with an arc-shaped through hole, and the crank arm is movably mounted in the arc-shaped through hole; when the drive device is started, the two slings move toward or away from each other along the length of the track, and the crank arm moves in a circular arc in the arc-shaped through hole. The present invention adopts a structural design of a two-way sling, in which the movable door leaf is driven by the sling, and the movable door leaf is bent 90 degrees and folded with the fixed door leaf, thereby perfectly realizing the folding and pushing performance of the automatic folding door. At the same time, the back panel and the track of the present invention adopt a snap-fit structure design, which is convenient for quick on-site installation, while reducing the height of the door machine, and can be applied to relatively narrow scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of bidirectional folding doors, and in particular to an electric control system for a bidirectional automatic folding door. Background Art

[0002] In large venues such as shopping malls, workshops, office buildings, and showrooms, door openings are often designed to be wider to facilitate the flow of goods in and out of the mall. Traditional 90-degree swing doors, however, are wider, requiring a larger radius of rotation during opening and closing, thus occupying a significant amount of space. Bi-folding doors, however, offer superior folding and sliding performance, occupy less space, and are therefore more adaptable. Bi-folding doors are composed of multiple panels connected by hinges. Positioning shafts at each end of the panels, which rotate deep within the door frame, enable active opening and closing of the active leaf and linked passive opening and closing of the passive leaf.

[0003] In the utility model patent "A Folding Double-Opening Linkage Door" with publication number CN216894062U, the working principle is that the user manually rotates the first handle 7 on the right clockwise, and the first handle 7 on the right drives the second bevel gear 11 on the same side to rotate through the first bevel gear 8 connected thereto, and the second bevel gear 11 on the right then drives the pulley 12 on the same side to rotate counterclockwise through the rotating shaft 10 connected thereto, and the right pulley 12 drives the left pulley 12 to rotate counterclockwise with the cooperation of the flat belt 13, and the left pulley 12 drives the second bevel gear 11 on the same side connected to the rotating shaft 10. The first bevel gear 8 rotates, and the first bevel gear 8 on the left drives the first handle 7 connected to it to rotate. At the same time, the flat belt 13 drives the two first clamping blocks 14 to move in opposite directions. The two first clamping blocks 14 respectively drive the second door panels 4 on the same side to move in opposite directions. At the same time, the two second door panels 4 rotate around the connection point of the first door panels 3 on the same side as the center of the circle, and the two first door panels 3 then rotate around the first support rod 2 on the same side as the center of the circle. The second door panels 4 on the same side drive the first door panels 3 on the same side to fold forward. When folded to the required degree, the first handle 7 stops rotating, completing the operation of opening the folding door. This solution requires manual opening or closing, and is not suitable for people with limited mobility such as the elderly and children. It cannot be integrated with smart homes and networked centralized control. In addition, because this solution uses the first bevel gear 8 and the second bevel gear 11 to mesh vertically to achieve the folding function, and a handle is provided on the door body, the overall door machine height and thickness are relatively large, which easily affects the daylighting rate of the glass curtain wall and is not suitable for relatively narrow scenes.

[0004] In the invention patent "Intelligently Controlled Fully Automatic Multi-leaf Folding Door" with publication number CN114165142A, the folding method is that the arc block 27 at the bottom of the angle adjustment plate 12 drives the torsion plate 13, so that the roller D21 in the torsion plate 13 slides along the front side of the movable cavity 28 in the angle adjustment block 9 in the direction away from the motor 4. The angle adjustment plate 12 drives the torsion plate 13 to form a certain angle. The angle formed between the angle adjustment plate 12, the torsion plate 13 and the rotating shaft 11 forms a certain angle between the door panel unit fixedly connected to the sleeve 23 and the adjacent door panel unit, thereby achieving the purpose of folding several door panel units in sequence. However, the angle adjustment block 9 used in this patent is difficult to achieve 90-degree folding between door panel units due to its limited angle.

[0005] In the invention patent "An Automatic Folding Door" with publication number CN108590446A, a transmission mechanism 4 is provided. The transmission mechanism 4 includes a driving gear 41 and a driven gear 42 that mesh with each other. The driving gear 41 is installed on the second door panel 22, and the driven gear 42 is installed on the first door panel 21. The patent realizes the folding between the door panels by driving the driving gear 41 to rotate, but the folding door panel 2 of the patent needs to be provided with multiple sets of transmission mechanisms 4 and drive mechanisms. Each drive mechanism drives the transmission mechanism 4 separately to realize the folding of the door body. The product structure is complex and the cost is high.

[0006] In the invention patent "An Automatic Folding Door" with publication number CN104818918B, the invention comprises two or more door leaves 72 connected in sequence by hinges 71. The door leaf 72 at one end of the door body 70 is connected to the door frame 10 via the hinge 71, while the door leaf 72 at the other end of the door body 70 is attached to the synchronous pulley assembly 60 via an iron leg assembly 80. The iron leg assembly 80 comprises a first straight iron leg 81, an electromagnetic actuator 82 mounted at one end of the first straight iron leg 81 for attracting the synchronous belt 61 in the synchronous pulley assembly 60, and a fastening assembly 83 mounted at the other end of the first straight iron leg 81 for connecting to the door body 70. The operating sequence of the electromagnetic actuator 82 is controlled by a control system. When the automatic folding door is required to operate in automatic mode, the control system controls the electromagnetic actuator 82 to attract the synchronous belt 61, thereby establishing a transmission connection between the door body 70 and the motor 20. The driving method adopted by this patent is to use magnets to adsorb the door leaf for steering. The product has a complex structure and is difficult to install. It produces a lot of noise when in use. In addition, after long-term use, the magnets will adsorb a lot of ferrite dust in the environment. The subsequent maintenance is relatively frequent, and it is not suitable for office places.

[0007] In the invention patent "A Multi-leaf Automatic Folding Door," patent publication number CN105804594A, one end of a foldable door assembly 3 is connected to the track of a first main rail 1 via a load-bearing wheel 5, and the other end is positioned within the track of a second main rail 2. A drive assembly 4 is disposed at one end of the first main rail. The drive assembly 4 includes a motor 401, which is connected to the foldable door assembly 3 via a pulley and a belt. A curved auxiliary guide rail 6 is disposed on one side of the first main rail 1. Auxiliary guide wheels 7 are disposed on the movable door body 303 of the foldable door assembly 3 near the motor 401. The curved auxiliary guide rail 6 and the auxiliary guide wheels 7 are used to guide the forward movement of the foldable door assembly 3. In this patent, the motor of the drive assembly drives the pulley to rotate, thereby retracting the belt. This belt retraction initially drives the foldable door assembly to move horizontally. When the auxiliary guide wheel reaches the position of the curved auxiliary guide rail, it enters the curved auxiliary guide rail. Under the action of the guide rail, the running direction of the foldable door assembly changes, thus achieving automatic folding. This solution first uses a linear guide rail to drive the folding door to move horizontally, and then uses a curved auxiliary guide rail to drive the folding door to turn and fold. It decomposes the two actions of movement and turning, and requires the use of a curved auxiliary guide rail to achieve door folding. The length and curvature of the curved auxiliary guide rail need to be customized according to door bodies of different widths. The product processing cost is high, the product installation difficulty is increased, the installation environment is limited, and it is not universally applicable. Summary of the Invention

[0008] The purpose of the present invention is to provide an electric control system for a two-way automatic folding door, optimize the structural design of the automatic folding door, improve the folding and sliding performance, simplify the door machine installation process, improve the overall integration of the door machine, facilitate on-site rapid installation, and enable it to be used in relatively small scenes.

[0009] To achieve this object, the present invention adopts the following technical solutions:

[0010] Provided is an electric control system for a two-way automatic folding door, comprising a back panel mounted on a wall, the back panel being connected to a track, two hangers being slidably connected to the track, the hangers being connected to a driving device via a transmission assembly, and each of the hangers being movably connected to a curved arm, the curved arm being connected to a movable door leaf of the automatic folding door; the hangers being provided with an arcuate through hole, the curved arm being movably mounted in the arcuate through hole, and when the driving device is started, the two hangers move toward or away from each other along the length direction of the track, and the curved arm moves in a circular arc in the arcuate through hole.

[0011] As a preferred solution for the electrical control system of a two-way automatic folding door, the curved arm includes a steering arm and a connecting plate, one end of the steering arm is movably mounted in the arc-shaped through hole through a guide wheel, and the other end of the steering arm is also mounted with a positioning wheel, the hanger is provided with a first groove portion corresponding to the position of the positioning wheel, the track is provided with a first guide rail corresponding to the position of the positioning wheel, the positioning wheel passes through the first groove portion and is slidably connected to the first guide rail of the track, the connecting plate is mounted on the side of the steering arm away from the track, and the connecting plate is connected to the movable door leaf of the folding door.

[0012] As a preferred solution for the electrical control system of a two-way automatic folding door, a first protrusion and a second protrusion are arranged at intervals on one side where the track is connected to the back panel, the first protrusion and the second protrusion are arranged obliquely towards each other, a third groove is provided at a position of the back panel corresponding to the first protrusion, the first protrusion and the third groove are snap-connected, a third protrusion is symmetrically provided at a position of the back panel corresponding to the second protrusion, a fourth groove is formed between the second protrusion and the third protrusion, a number of fasteners are installed at intervals in the fourth groove, and the fasteners can abut against the inner wall of the fourth groove by tightening the screws to fix the position of the track.

[0013] As a preferred solution for the electric control system of the bidirectional automatic folding door, a second guide rail is further provided on one side of the track, and a first pulley group is installed on the side of the hanger close to the track, and the first pulley group cooperates with the second guide rail to achieve a sliding connection.

[0014] As a preferred solution of the electrical control system of a two-way automatic folding door, the first pulley group includes a first mounting seat, an eccentric shaft and a first pulley installed on one side of the sling, the first mounting seat is movably connected to the first pulley through the eccentric shaft, the eccentric shaft includes a first transmission shaft movably connected to the first mounting seat, a transmission plate connected to one end of the first transmission shaft and a second transmission shaft connected to the transmission plate, the first transmission shaft and the second transmission shaft are not on the same axis, the second transmission shaft is connected to the first pulley, and a locking screw is provided at the position of the first mounting seat corresponding to the first transmission shaft, and the locking screw is in contact with the first transmission shaft.

[0015] As a preferred solution for the electric control system of the bidirectional automatic folding door, a circular arc protrusion is provided on one side of the second guide rail, and a circular arc groove is provided on the surface of the first pulley, and the circular arc protrusion and the circular arc groove cooperate with each other.

[0016] As a preferred solution for the electrical control system of a two-way automatic folding door, a second pulley group is installed under the sling, and the second pulley group includes a second mounting seat, a plurality of second pulleys and a plurality of third pulleys. The plurality of second pulleys are vertically arranged at intervals along the length direction of the second mounting seat, and the plurality of third pulleys are horizontally arranged at intervals along the length direction of the second mounting seat. A third guide rail is provided at the bottom of the track, and the second pulley and the third pulley both cooperate with the third guide rail to achieve a sliding connection.

[0017] As a preferred solution for the electrical control system of a two-way automatic folding door, the transmission assembly includes a driving wheel and a driven wheel installed at intervals on the track and a transmission belt for connecting the driving wheel and the driven wheel. A belt clamp is provided on the sling, one of the slings is connected to one side of the transmission belt through the belt clamp, and the other sling is connected to the other side of the transmission belt through the belt clamp.

[0018] As a preferred solution for the electrical control system of a two-way automatic folding door, the driving device includes a transformer, a controller, a driving motor and a backup battery installed on the track. The transformer and the backup battery are electrically connected to the controller, the controller is electrically connected to the driving motor, and the driving motor is transmission-connected to the driving wheel.

[0019] As a preferred solution for the electric control system of the bidirectional automatic folding door, two fixed shafts are installed on the track at intervals, and the fixed shafts are connected to the fixed door leaf of the automatic folding door.

[0020] Beneficial effects of the present invention:

[0021] (1) The present invention adopts a bidirectional sling structure design, in which the sling drives the movable door leaf, which in turn drives the fixed door leaf to fold. Compared with the invention patent "Intelligent Control Fully Automatic Multi-Leaf Folding Door" with publication number CN114165142A, the present invention can make the movable door leaf bend 90 degrees and fold together with the fixed door leaf, perfectly realizing the folding and pushing performance of the automatic folding door. In addition, the automatic folding door of the present invention can be provided with multiple door leaves, and the door leaves can be designed to be smaller. The door leaf has a small rotation radius during the door opening and closing process, thereby improving space utilization.

[0022] (2) Compared with the invention patent “An Automatic Folding Door” with publication number “CN104818918B”, the pulley assembly of the present invention adopts an eccentric shaft structural design. When the sling moves, it will drive the first pulley to slide on the track. The rotation of the eccentric shaft makes the first pulley in close contact with the track, preventing the sling from loosening from the track. At the same time, the present invention is provided with a locking screw at the eccentric shaft. The locking screw can tighten and fix the eccentric shaft, so that the sling will not generate noise when moving on the track. It is suitable for office places such as office buildings.

[0023] (3) The present invention adopts a structural design in which an arc-shaped through hole is set on the sling. When the driving device drives the sling to move horizontally, the curved arm will drive the movable door leaf to turn synchronously in the arc-shaped through hole. Compared with the invention patent "A multi-leaf automatic folding door" with publication number CN105804594A, the present invention directly integrates the arc-shaped turning structure into the sling. The movement and turning action of the folding door are carried out synchronously, making the overall folding action connection smoother, and there is no need to adjust the curvature and length of the arc-shaped turning structure according to the width of the door body. It has a wider application, stronger versatility and a simpler structure.

[0024] (4) Compared with the invention patent “An automatic folding door” with publication number CN108590446A, the present invention adopts a single driving device to drive the door leaves on both sides of the door body at the same time, which not only reduces the equipment cost, but also when the folding door is opened or closed, the door leaves on both sides of the door body can be folded or unfolded synchronously, avoiding the problem of one side being unable to open.

[0025] (5) Compared with the utility model patent “A folding double-opening linkage door” with publication number CN216894062U, the sling, crank arm, drive device and transmission device of the present invention are all installed on the back panel, which reduces the height and thickness of the door machine, improves the overall integration of the door machine, and can be used in relatively narrow scenes.

[0026] (6) The back panel and the rail of the present invention adopt a snap-fit structure design, which is convenient for factory pre-processing and assembly, reduces the installation difficulty of the installers, facilitates quick installation on site, and saves the installation time of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0028] Figure 1 The present invention is a schematic diagram of the door opening structure of the electric control system of the two-way automatic folding door according to one embodiment of the present invention.

[0029] Figure 2 The present invention is a schematic diagram of the door closing structure of the electric control system of the two-way automatic folding door according to one embodiment of the present invention.

[0030] Figure 3 It is a side structural diagram of an electric control system for a two-way automatic folding door according to one embodiment of the present invention.

[0031] Figure 4 It is a front structural schematic diagram of a sling according to an embodiment of the present invention.

[0032] Figure 5 It is a schematic diagram of the back structure of a sling according to an embodiment of the present invention.

[0033] Figure 6 It is a structural schematic diagram of a crank arm according to an embodiment of the present invention.

[0034] Figure 7 This is a structural exploded view of the first pulley group and the second pulley group according to one embodiment of the present invention.

[0035] Figures 1 to 7 middle:

[0036] 1. Track; 11. First guide rail; 12. Second guide rail; 13. Third guide rail; 14. First raised portion; 15. Second raised portion;

[0037] 2. Lifting device; 21. Arc-shaped through hole; 22. First pulley block; 221. First mounting seat; 222. First pulley; 223. First transmission shaft; 224. Transmission plate; 225. Second transmission shaft; 226. Locking screw; 23. Second pulley block; 231. Second mounting seat; 232. Second pulley; 233. Third pulley; 24. Belt clamp; 25. First groove; 26. Second groove

[0038] 3. Transmission assembly; 31. Driving pulley; 32. Driven pulley; 33. Transmission belt;

[0039] 4. Drive device; 41. Transformer; 42. Controller; 43. Drive motor; 44. Backup battery;

[0040] 5. Crank arm; 51. Steering arm; 52. Connecting plate; 53. Positioning wheel; 54. Guide wheel;

[0041] 6. Fixed shaft; 7. Back plate; 71. Third groove portion; 72. Third protrusion portion; 73. Fourth groove portion; 74. Fastener. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0043] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0044] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0045] In the description of the present invention, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term 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 a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0046] like Figure 1 and Figure 2 As shown, the present invention provides an electric control system for a two-way automatic folding door, comprising a track 1 arranged above the automatic folding door, with two hangers 2 slidably connected to the track 1, the hangers 2 being connected to a driving device 4 through a transmission assembly 3, and each hanger 2 is movably connected to a curved arm 5, which is connected to the movable door leaf of the automatic folding door; fixed shafts 6 are also installed at both ends of the track 1, and the fixed shafts 6 are connected to the fixed door leaf of the automatic folding door, and a second groove portion 26 is provided on the side of each hanger 2 away from the other hanger 2, and the second groove portion 26 cooperates with the fixed shaft 6. When the hanger 2 moves toward both ends, the fixed shaft 6 can be stuck in the second groove portion 26, so that the movable door leaf and the fixed door leaf of the automatic folding door are folded together.

[0047] like Figure 4 and Figure 5As shown, the sling 2 of this embodiment is provided with an arc-shaped through hole 21, and the curved arm 5 is movably installed in the arc-shaped through hole 21. When the driving device 4 is started, the two slings 2 move toward or away from each other along the length direction of the track 1, and the curved arm 5 moves in a circular arc in the arc-shaped through hole 21.

[0048] The present invention adopts a bidirectional sling 2 structural design, which fixes the fixed door leaf of the automatic folding door to both ends of the track 1 via a fixed shaft 6, and connects the movable door leaf of the automatic folding door via a curved arm 5. When the driving device 4 drives the two slings 2 to move toward or away from each other on the track 1, the curved arm 5 will rotate along the arc-shaped through hole 21 of the sling 2, thereby driving the movable door leaf to change direction and fold together with the fixed door leaf. Compared with existing automatic folding doors, the automatic folding door of the present invention uses the sling 2 to drive the movable door leaf, and the movable door leaf drives the fixed door leaf to fold the door leaf, which can make the movable door leaf bend 90 degrees and fold together with the fixed door leaf, perfectly realizing the folding and pushing performance of the automatic folding door. In addition, the automatic folding door of the present invention can be provided with multiple door leaves, and the door leaves can be designed to be smaller. The rotation radius of the door leaf is small during the door opening and closing process, thereby improving space utilization.

[0049] like Figure 6 As shown, the curved arm 5 of this embodiment includes a steering arm 51 and a connecting plate 52. One end of the steering arm 51 is movably mounted in the arc-shaped through hole 21 through a guide wheel 54. A positioning wheel 53 is also mounted on the other end of the steering arm 51. A first groove portion 25 is provided at the position of the sling 2 corresponding to the positioning wheel 53. A first guide rail 11 is provided at the position of the track 1 corresponding to the positioning wheel 53. The positioning wheel 53 passes through the first groove portion 25 and is slidingly connected to the first guide rail 11 of the track 1. The connecting plate 52 is mounted on the side of the steering arm 51 away from the track 1, and the connecting plate 52 is connected to the movable door leaf of the automatic folding door. The fixed shaft 6 is mounted at both ends of the first guide rail 11. When the sling 2 moves toward the two ends of the first guide rail 11, the second groove portion 26 of the sling 2 is just stuck in the position of the fixed shaft 6, thereby folding the movable door leaf and the fixed door leaf of the automatic folding door.

[0050] In order to better realize the rotation function of the crank arm 5, the steering arm 51 of this embodiment is preferably an L-shaped structure. The longer end of the steering arm 51 is provided with a guide wheel 54, which is movably installed in the arc-shaped through hole 21. The shorter end of the steering arm 51 is provided with a positioning wheel 53. When the driving device 4 drives the two spreaders 2 to move toward each other to close the door, the spreader 2 will apply a thrust to the positioning wheel 53 in the first groove portion 25 to drive the steering arm 51 to move. During the movement, the guide wheel 54 will be subjected to an oblique upward supporting force. Under the action of the supporting force, the steering arm 51 will slide on the arc-shaped through hole 21, thereby driving the movable door leaf of the automatic folding door to rotate 90 degrees and unfold, realizing the function of automatic door closing; when the two hangers 2 move oppositely on the track 1 to open the door, the hanger 2 will apply a pulling force to the guide wheel 54 to drive the steering arm 51 to move. During the movement, the guide wheel 54 will generate a backward friction force. Under the action of the friction force, the guide wheel 54 will slide in the opposite direction along the arc-shaped through hole 21, thereby driving the movable door leaf of the automatic folding door to rotate 90 degrees and fold, realizing the function of automatic door opening.

[0051] Preferably, the arcuate through hole 21 of this embodiment is preferably 90 degrees, and the arcuate through holes 21 of the two hangers 2 are arranged tangentially, so that the rotatable angle of the movable door leaf reaches 90 degrees, perfectly realizing the folding and pushing performance of the automatic folding door.

[0052] like Figure 3 As shown, the side where the track 1 of this embodiment is connected to the back plate 7 is provided with a first protrusion 14 and a second protrusion 15 at intervals, and the first protrusion 14 and the second protrusion 15 are arranged obliquely towards each other, and the back plate 7 is provided with a third groove portion 71 at a position corresponding to the first protrusion 14, and the first protrusion 14 is engaged with the third groove portion 71, and the back plate 7 is symmetrically provided with a third protrusion 72 at a position corresponding to the second protrusion 15, and a fourth groove portion 73 is formed between the second protrusion 15 and the third protrusion 72, and a plurality of fasteners 74 are installed at intervals in the fourth groove portion 73, and the fasteners 74 can slide along the length direction of the fourth groove portion 73. When the first protrusion 14 is installed in the third groove portion 71, the fasteners 74 can be adjusted to a suitable position and abut against the inner wall of the fourth groove portion 73 by tightening the screws, thereby fixing the position of the track 1 and preventing the first protrusion 14 from falling off from the third groove portion 71.

[0053] The back panel 7 of the present invention and the track 1 adopt a snap-fit structure design, which is convenient for quick installation on site, reduces the installation difficulty of the installer, and saves the installation time of the project. At the same time, the hanger 2 of the present invention is directly installed on one side of the track 1, which reduces the door machine height of the automatic folding door. The automatic folding door of this embodiment can achieve a door machine height of 7 cm, can be used in relatively narrow scenes, and improves the applicability of the automatic folding door.

[0054] Preferably, a second guide rail 12 is provided on one side of the track 1 of this embodiment, and a first pulley group 22 is installed on the side of the sling 2 close to the track 1. The first pulley group 22 includes a first mounting seat 221 installed on one side of the sling 2, an eccentric shaft and a first pulley 222. The first mounting seat 221 is movably connected to the first pulley 222 through the eccentric shaft. The eccentric shaft includes a first transmission shaft 223 movably connected to the first mounting seat 221, a transmission plate 224 connected to one end of the first transmission shaft 223, and a second transmission shaft 225 connected to the transmission plate 224. The first transmission shaft 223 The first pulley 222 is not coaxial with the second transmission shaft 225, and the second transmission shaft 225 is connected to the first pulley 222. When the driving device 4 drives the spreader 2 to move, the first pulley 222 slides on the second guide rail 12. Under the action of the eccentric shaft, the first pulley 222 will perform eccentric movement, so that the first pulley 222 and the second guide rail 12 are in close contact, preventing the spreader 2 from loosening from the second guide rail 12. At the same time, the first mounting seat 221 of the present invention is provided with a locking screw 226 at the position corresponding to the first transmission shaft 223, and the locking screw 226 abuts the first transmission shaft 223. The locking screw 226 can tighten and fix the eccentric shaft, thereby preventing the spreader 2 from generating noise when moving on the track 1, making it suitable for office spaces such as office buildings.

[0055] More preferably, a circular arc protrusion is provided on one side of the second guide rail 12 of the present invention, and a circular arc groove is provided on the surface of the first pulley 222. The circular arc protrusion and the circular arc groove cooperate with each other, so that the first pulley 222 and the second guide rail 12 are in closer contact, further reducing movement noise.

[0056] like Figure 7 As shown, a second pulley group 23 is installed under the sling 2 of this embodiment, and the second pulley group 23 includes a second mounting seat 231, a plurality of second pulleys 232 and a plurality of third pulleys 233. The plurality of second pulleys 232 are vertically arranged at intervals along the length direction of the second mounting seat 231, and the plurality of third pulleys 233 are horizontally arranged at intervals along the length direction of the second mounting seat 231. A third guide rail 13 is provided at the bottom of the track 1, and the second pulley 232 and the third pulley 233 both cooperate with the third guide rail 13 to realize a sliding connection.

[0057] Preferably, the second pulley 232 of this embodiment is preferably two, vertically arranged at the left and right ends of the bottom of the sling 2, and the third pulley 233 is preferably two, horizontally arranged at the left and right ends of the bottom of the sling 2, so that the sling 2 can slide more smoothly on the track 1, thereby avoiding the phenomenon of jamming between the door body and the slide rail.

[0058] Specifically, the transmission assembly 3 of this embodiment includes a driving wheel 31 and a driven wheel 32 installed at intervals on the track 1, and a transmission belt 33 for connecting the driving wheel 31 and the driven wheel 32. A belt clamp 24 is provided on the sling 2, one of the slings 2 is connected to one side of the transmission belt 33 through the belt clamp 24, and the other sling 2 is connected to the other side of the transmission belt 33 through the belt clamp 24. When the driving device 4 is started, the two slings 2 will move toward or away from each other under the drive of the transmission belt 33.

[0059] Specifically, the driving device 4 of this embodiment includes a transformer 41, a controller 42 and a driving motor 43 installed on the track 1. The transformer 41 is electrically connected to the controller 42, the controller 42 is electrically connected to the driving motor 43, the driving motor 43 is transmission-connected to the driving wheel 31, and drives the sling 2 to move through the transmission belt 33.

[0060] The driving device 4 of this embodiment is also provided with a backup battery 44. When there is a power outage in places such as shopping malls, workshops, office buildings, and exhibition halls, the backup battery 44 can also be used to power the driving motor 43 to avoid the problem that the automatic folding door cannot be opened.

[0061] It should be noted that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that various modifications, equivalent substitutions, and variations may be made to the present invention. However, as long as these modifications do not depart from the spirit of the present invention, they are intended to be within the scope of protection of the present invention. Furthermore, certain terms used in the specification and claims of this application are not intended to be limiting and are provided solely for ease of description.

Claims

1. An electric control system for a two-way automatic folding door, characterized in that: The invention comprises a back plate (7) mounted on a wall, the back plate (7) being connected to a track (1), two slings (2) being slidably connected to the track (1), the slings (2) being connected to a driving device (4) via a transmission assembly (3), and each of the slings (2) being movably connected to a crank arm (5), the crank arm (5) being connected to a movable door leaf of an automatic folding door; the slings (2) being provided with an arcuate through hole (21), the crank arm (5) being movably mounted in the arcuate through hole (21), and when the driving device (4) is started, the two slings (2) are moved along the track (1) ) in the longitudinal direction thereof, the crank arm (5) moves in an arc shape in the arc-shaped through hole (21), the crank arm (5) comprises a steering arm (51) and a connecting plate (52), one end of the steering arm (51) is movably mounted in the arc-shaped through hole (21) via a guide wheel (54), and a positioning wheel (53) is further mounted on the other end of the steering arm (51), a first groove portion (25) is provided on the sling (2) at a position corresponding to the positioning wheel (53), and a first guide rail (11) is provided on the track (1) at a position corresponding to the positioning wheel (53). The positioning wheel (53) passes through the first groove portion (25) and is slidably connected to the first guide rail (11) of the track (1). The connecting plate (52) is installed on the side of the steering arm (51) away from the track (1), and the connecting plate (52) is connected to the movable door leaf of the folding door. A first protrusion (14) and a second protrusion (15) are arranged at intervals on the side where the track (1) is connected to the back plate (7). The first protrusion (14) and the second protrusion (15) are arranged to be inclined toward each other. The back plate (7) corresponds to the first protrusion (14). 4), a third groove portion (71) is provided at the position of the first protrusion (14) and is engaged with the third groove portion (71), a third protrusion (72) is symmetrically provided on the back plate (7) corresponding to the position of the second protrusion (15), a fourth groove portion (73) is formed between the second protrusion (15) and the third protrusion (72), a plurality of fasteners (74) are installed at intervals in the fourth groove portion (73), and the fasteners (74) can abut against the inner wall of the fourth groove portion (73) by tightening screws to fix the position of the track (1).

2. The electric control system for a two-way automatic folding door according to claim 1, characterized in that: A second guide rail (12) is also provided on one side of the track (1), and a first pulley group (22) is installed on the side of the sling (2) close to the track (1), and the first pulley group (22) cooperates with the second guide rail (12) to achieve a sliding connection.

3. The electric control system for a two-way automatic folding door according to claim 2, characterized in that: The first pulley assembly (22) includes a first mounting seat (221) mounted on one side of the sling (2), an eccentric shaft and a first pulley (222); the first mounting seat (221) is movably connected to the first pulley (222) via the eccentric shaft; the eccentric shaft includes a first transmission shaft (223) movably connected to the first mounting seat (221), a transmission plate (224) connected to one end of the first transmission shaft (223) and a second transmission shaft (225) connected to the transmission plate (224); the first transmission shaft (223) and the second transmission shaft (225) are not coaxial; the second transmission shaft (225) is connected to the first pulley (222); a locking screw (226) is provided on the first mounting seat (221) at a position corresponding to the first transmission shaft (223); the locking screw (226) abuts against the first transmission shaft (223).

4. The electric control system for a two-way automatic folding door according to claim 3, characterized in that: A circular arc protrusion is provided on one side of the second guide rail (12), and a circular arc groove is provided on the surface of the first pulley (222), and the circular arc protrusion and the circular arc groove cooperate with each other.

5. The electric control system for a two-way automatic folding door according to claim 1, characterized in that: A second pulley group (23) is installed below the sling (2), and the second pulley group (23) includes a second mounting seat (231), a plurality of second pulleys (232) and a plurality of third pulleys (233). The plurality of second pulleys (232) are vertically arranged at intervals along the length direction of the second mounting seat (231), and the plurality of third pulleys (233) are horizontally arranged at intervals along the length direction of the second mounting seat (231). A third guide rail (13) is provided at the bottom of the track (1), and the second pulleys (232) and the third pulleys (233) are both matched with the third guide rail (13) to achieve sliding connection.

6. The electric control system for a two-way automatic folding door according to claim 1, characterized in that: The transmission assembly (3) comprises a driving wheel (31) and a driven wheel (32) installed at intervals on the track (1) and a transmission belt (33) for connecting the driving wheel (31) and the driven wheel (32); a belt clamp (24) is provided on the sling (2); one of the slings (2) is connected to one side of the transmission belt (33) through the belt clamp (24), and the other sling (2) is connected to the other side of the transmission belt (33) through the belt clamp (24).

7. The electric control system for a two-way automatic folding door according to claim 6, characterized in that: The driving device (4) comprises a transformer (41), a controller (42), a driving motor (43) and a backup battery (44) installed on the track (1); the transformer (41) and the backup battery (44) are both electrically connected to the controller (42); the controller (42) is electrically connected to the driving motor (43); and the driving motor (43) is transmission-connected to the driving wheel (31).

8. The electric control system for a two-way automatic folding door according to any one of claims 1 to 7, characterized in that: Two fixed shafts (6) are also installed at intervals on the track (1), and the fixed shafts (6) are connected to the fixed door leaf of the automatic folding door.

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