Electric roller shutter door

Abstract

The invention discloses an electric roller shutter door. The electric roller shutter door comprises a support assembly, a roller shutter door body and an electric roller shutter door body, the roller shutter door piece comprises a plurality of door piece bodies, the door piece bodies are sequentially connected in series, and the ends, in the length direction, of the door piece bodies are movably connected to the support assembly; the transmission shaft is inserted between the two adjacent door sheet bodies, the transmission shaft is provided with a protruding part protruding out of the roller shutter door sheet, and the protruding part is located in the track of the support assembly; the driving assembly is connected with the support assembly, and the driving assembly is matched with the transmission shaft so as to drive the roller shutter door piece to move along the track of the support assembly; and the at least one clearance compensation piece is connected with the two protruding parts located on the same side of the roller shutter door piece. In this way, the operation stability of the electric roller shutter door can be improved, noise can be reduced, and the service life of the electric roller shutter door can be prolonged.

Description

Technical Field

[0001] The present application relates to the field of rolling shutter doors, and in particular to an electric rolling shutter door. Background Art

[0002] Because electric rolling doors don't require the door panels to swing outward away from the vehicle body, they are widely used in transport trucks, fire trucks, and other vehicles to open and close the vehicle's cargo space, allowing cargo to be easily moved in and out. Existing electric rolling doors often utilize a bracket-guided system. Its core structure includes a bracket, a curtain body composed of multiple hinged door panels, and a drive motor. The brackets are embedded on both sides of the door panels, and adjacent door panels are connected by a drive shaft to transmit the driving force, enabling the door panels to slide. However, due to manufacturing errors, wear, or thermal expansion and contraction, lateral clearance between the drive shaft and the bracket is inevitable, causing the rolling door to wobble or even get stuck during operation. After long-term operation, the clearance will further increase, causing abnormal noise. Summary of the Invention

[0003] The electric rolling shutter door provided in the present application can solve the problems in the prior art of electric rolling shutter doors being prone to shaking, getting stuck, and making abnormal noises during operation.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide an electric rolling door, which includes: a bracket assembly, wherein the bracket assembly is provided with a track; a rolling door piece, wherein the rolling door piece includes a plurality of door piece bodies, the plurality of door piece bodies are connected in series in sequence, and the ends of the door piece bodies in the longitudinal direction are movably connected to the bracket assembly; a transmission shaft, inserted between two adjacent door piece bodies, the transmission shaft has a protrusion protruding from the rolling door piece, and the protrusion is located in the track of the bracket assembly; a driving assembly, connected to the bracket assembly, and the driving assembly cooperates with the transmission shaft to drive the rolling door piece to move along the track of the bracket assembly; at least one gap compensating member, connected to the two protrusions located on the same side of the rolling door piece, and the gap compensating member is used to eliminate the gap between the transmission shaft and the bracket assembly.

[0005] In some embodiments, the gap compensation member includes a connecting portion and two eliminating gap portions respectively connected to the two ends of the connecting portion, and the two eliminating gap portions in the gap compensation member are respectively connected to the protrusion of one of the transmission shafts; the eliminating gap member includes a first action plate and a second action plate, and the first end of the first action plate and the first end of the second action plate are both integrally connected to the connecting portion; the first action plate is connected to the protrusion, and the second action plate abuts against the bracket assembly, and in the same eliminating gap member, a deformation gap is provided between the first action plate and the second action plate, and the second end of the first action plate is separated from the second end of the second action plate; when the transmission shaft is displaced along the first direction with the door panel body, the first action plate and the second action plate of at least one of the gap compensation members are elastically deformed toward the deformation gap; wherein, the first direction is the length direction of the door panel body.

[0006] In some embodiments, a card interface is provided on the first action plate, and the card interface is engaged with the protrusion; a protrusion is provided on the side of the second action plate away from the deformation gap, and the protrusion abuts against the inner wall of the track of the bracket assembly.

[0007] In some embodiments, the bracket assembly includes a pair of first brackets arranged in parallel, a pair of second brackets arranged in parallel and connected to the first brackets, and a pair of third brackets connected between the first brackets and the second brackets; the drive assembly includes a driver, a drive shaft and a pair of sprockets; a pair of the sprockets are arranged on the inner side of the third bracket, and the teeth of the sprockets cooperate with the transmission shaft, so that as the sprockets rotate, the transmission shaft drives the rolling door sheet to move in the track of the bracket assembly; the transmission shaft is connected between the pair of sprockets; the driver is connected to the drive shaft to drive the drive shaft to rotate, thereby driving the sprocket to rotate.

[0008] In some embodiments, the first bracket is perpendicular to the second bracket; a first track is provided on the first bracket, a second track is provided on the second bracket, and an arc track is provided on the third bracket, and the arc track connects the first track and the second track.

[0009] In some embodiments, a flange roller is sleeved on the transmission shaft, the flange roller is sleeved on the protrusion, and the flange roller cooperates with the tooth groove of the sprocket.

[0010] In some embodiments, the electric rolling door further comprises a chain, wherein the chain is connected to the transmission shaft, and the chain is meshedly connected to the sprocket; the chain is a roller chain.

[0011] In some embodiments, the electric rolling door further includes a coil spring and a accommodating box, one end of the coil spring is connected to the rolling door piece, and the other end of the coil spring is connected to the accommodating box, and the accommodating box is located at an end of the second bracket away from the first bracket.

[0012] In some embodiments, the electric rolling door further includes a door head baffle, which is connected between a pair of the third brackets and is used to protect the door panel body located between the third brackets.

[0013] In some embodiments, a sealing member is further provided between the first bracket and the rolling door piece, and the sealing member is used to eliminate the gap between the outer wall of the rolling door piece and the first bracket.

[0014] In some embodiments, the electric rolling door further comprises a plurality of guide wheels, wherein the guide wheels are rotatably connected to the protrusion, and the rolling door piece is movably connected to the bracket assembly via the guide wheels; the gap compensation member is located between the guide wheels and the bracket assembly to eliminate the gap between the guide wheels and the bracket assembly.

[0015] In some embodiments, one transmission shaft is inserted between two adjacent door panels from one end of the door panel body in the length direction, and another transmission shaft is inserted between two adjacent door panels from the other end of the door panel body in the length direction.

[0016] In some embodiments, the electric rolling door further includes at least one limit switch, which is connected to the bracket assembly. The limit switch is triggered when the rolling door piece moves to a predetermined position. When the rolling door piece moves to the predetermined position, the limit switch stops the rolling door piece from moving.

[0017] In some embodiments, the electric rolling door is further provided with a locking assembly, which can be locked and unlocked electrically or manually.

[0018] The present application provides the following beneficial effects: Unlike the prior art, the electric rolling door provided herein includes: a bracket assembly having a track disposed thereon; a rolling door slat comprising a plurality of slat bodies, the slat bodies being sequentially connected in series, and the longitudinal ends of the slat bodies being movably connected to the bracket assembly; a drive shaft interposed between two adjacent slat bodies, the drive shaft having a protrusion protruding from the rolling door slat, the protrusion being located in the track of the bracket assembly; a drive assembly connected to the bracket assembly, the drive assembly cooperating with the drive shaft to drive the rolling door slat along the track of the bracket assembly; and at least one gap compensator connected to two of the protrusions on the same side of the rolling door slat, the gap compensator being configured to eliminate the gap between the drive shaft and the bracket assembly. In the technical solution of the present application, the gap compensator is provided between the drive shaft and the bracket assembly to effectively eliminate the gap between the drive shaft and the track of the bracket assembly. This improves the operating stability of the electric rolling door, reduces noise, and increases the service life of the electric rolling door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 is a schematic structural diagram of an electric rolling door provided in some embodiments of the present application; Figure 2 is an exploded schematic diagram of an electric rolling door provided in some embodiments of the present application; Figure 3 yes Figure 2 A magnified schematic diagram of point A in the middle; Figure 4 is a schematic structural diagram of a gap compensation member provided in some embodiments of the present application; Figure 5 This is a partial structural diagram of an electric rolling door provided in some embodiments of the present application; Figure 6 This is a schematic structural diagram of the chain and transmission shaft provided in other embodiments of the present application.

[0021] Description of reference numerals: 100-Electric Rolling Door, 101-Bracket Assembly, 1011-First Bracket, 1011a-First Track, 1012-Second Bracket, 1012a-Second Track, 1013-Third Bracket, 1013a-Curved Track, 102-Rolling Door Panel, 1021-Door Panel Body, 103-Drive Shaft, 1031-Protrusion, 104-Drive Assembly, 1041-Driver, 1042-Drive Shaft, 1043-Sprocket, 105-Interval Gap compensation part, 1051-connecting part, 1052-gap elimination part, 1052a-first action plate, 1052b-second action plate, 1052c-deformation gap, 1052d-card interface, 1052e-protruding block, 106-flange roller, 107-chain, 108-coil spring, 109-accommodation box, 110-door head baffle, 111 seal, 112-guide wheel, 113-limit switch, 114-locking assembly, 115-door handle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0023] The terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features identified. Therefore, features identified as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional designations in the embodiments of this application (such as up, down, left, right, front, back, etc.) are intended only to illustrate the relative positional relationships and movement of components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional designations will also change accordingly. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to such process, method, product, or apparatus.

[0024] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] The electric rolling door provided in the present application includes: a bracket assembly having a track disposed thereon; a rolling door slat comprising a plurality of slat bodies, the plurality of slat bodies being sequentially connected in series, with the longitudinal ends of the slat bodies being movably connected to the bracket assembly; a drive shaft interposed between two adjacent slat bodies, the drive shaft having a protrusion protruding from the rolling door slat, the protrusion being located in the track of the bracket assembly; a drive assembly connected to the bracket assembly, the drive assembly cooperating with the drive shaft to drive the rolling door slat along the track of the bracket assembly; and at least one gap compensator connected to two of the protrusions located on the same side of the rolling door slat, the gap compensator being configured to eliminate gaps between the drive shaft and the bracket assembly. In the technical solution of the present application, the gap compensator is provided between the drive shaft and the bracket assembly to effectively eliminate gaps between the drive shaft and the track of the bracket assembly. In this manner, the operating stability of the electric rolling door can be improved, noise can be reduced, and the service life of the electric rolling door can be increased.

[0026] See also Figure 1-3 , Figure 1 This is a schematic diagram of the structure of an electric rolling shutter door provided in an embodiment of the present application. Figure 2 This is an exploded schematic diagram of an electric rolling door provided in some embodiments of the present application. Figure 3 yes Figure 2Enlarged schematic diagram at point A in the middle. The electric rolling door 100 provided in the present application includes but is not limited to a bracket assembly 101, a rolling door piece 102, a transmission shaft 103, a drive assembly 10 and at least one gap compensation member 105. A track is provided on the bracket assembly 101 to provide guidance and support for the operation of the rolling door piece 102. The rolling door piece 102 includes a plurality of door piece bodies 1021, and the plurality of door piece bodies 1021 are connected in series in sequence, and the ends of the door piece bodies 1021 in the longitudinal direction are movably connected to the bracket assembly 101, so that the rolling door piece 102 can slide along the track of the bracket assembly 101. The drive assembly 104 is connected to the bracket assembly 101. The drive assembly 104 cooperates with the transmission shaft 103 to drive the rolling door piece 102 to move along the track of the bracket assembly 101. The transmission shaft 103 is inserted between two adjacent door leaf bodies 1021, and directly and effectively transmits the driving torque output by the driving assembly 104 to each connection node of the rolling door leaf 102, so that the door leaf body 1021 is subjected to more uniform force during movement, reducing the risk of twisting and deformation. The transmission shaft 103 has a protrusion 1031 that protrudes from the rolling door leaf 102. The protrusion 1031 is located in the track of the bracket assembly 101. The gap compensator 105 is connected to the two protrusions 1031 located on the same side of the rolling door leaf 102, and the gap compensator 105 is used to eliminate the gap between the transmission shaft 103 and the bracket assembly 101. Specifically, the gap compensator 105 eliminates the gap between the protrusion 1031 and the track of the bracket assembly 101, so as to improve the operating stability of the electric rolling door 100, reduce noise, and increase the service life of the electric rolling door 100.

[0027] See also Figure 4 , Figure 4 Schematic diagram of the structure of a clearance compensation member provided in some embodiments of the present application. Furthermore, the clearance compensation member 105 includes a connecting portion 1051 and two clearance-eliminating portions 1052 connected to both ends of the connecting portion 1051. The two clearance-eliminating portions 1052 in the clearance compensation member 105 are each connected to a protrusion 1031 of a drive shaft 103. In this embodiment, the two protrusions 1031 connected to the two clearance-eliminating portions 1052 are adjacent. The two clearance-eliminating portions 1052 can directly and effectively compensate for the gap between adjacent drive shafts 103. Each clearance-eliminating portion 1052 can independently and specifically act on the corresponding drive shaft 103, effectively preventing problems such as shaking and loosening caused by the gap between the drive shaft 103 and the track of the bracket assembly 101. The clearance-eliminating portion 1052 includes a first action plate 1052a and a second action plate 1052b. The first end of the first action plate 1052a and the first end of the second action plate 1052b are both integrally connected to the connecting portion 1051.

[0028] The first action plate 1052a is connected to the protrusion 1031, and the second action plate 1052b abuts the bracket assembly 101. Within the same gap elimination portion 1052, a deformation gap 1052c is defined between the first action plate 1052a and the second action plate 1052b, providing space for elastic deformation of the gap compensation member 105. The second end of the first action plate 1052a is spaced apart from the second end of the second action plate 1052b. When the drive shaft 103 displaces along the first direction with the door panel body 1021, the first action plate 1052a and the second action plate 1052b of at least one gap compensation member 105 elastically deform toward the deformation gap 1052c, thereby dynamically compensating for the gap between the track of the bracket assembly 101 and the drive shaft 103. At this point, the second action plate 1052b can also transfer the stress it receives to the bracket assembly 101, adjusting and eliminating gaps. This helps improve the stability and precision of the rolling door slat 102 during movement and prevents shaking or loosening caused by gaps. This helps improve the smooth operation of the electric rolling door 100, extends the service life of the equipment, and reduces maintenance costs. It should be noted that the first direction in this embodiment refers to the length of the door slat body 1021.

[0029] Furthermore, the first operating plate 1052a is provided with a latching interface 1052d, which engages with the protrusion 1031 to ensure a stable connection between the drive shaft 103 and the gap compensation member 105. The second operating plate 1052b, facing away from the deformation gap 1052c, is provided with a raised block 1052e, which abuts against the inner wall of the track. The provision of the raised block not only precisely guides the rolling door 102 along the track of the bracket assembly 101 but also further compensates for the gap between the bracket assembly 101 and the drive shaft 103, preventing the rolling door 102 from shaking or shifting, thereby improving the operational stability of the electric rolling door 100.

[0030] Furthermore, the bracket assembly 101 includes a pair of first brackets 1011 arranged in parallel, a pair of second brackets 1012 arranged in parallel and connected to the first brackets 1011, and a pair of third brackets 1013 connected between the first brackets 1011 and the second brackets 1012. Figure 2 and Figure 5 , Figure 51 is a schematic diagram of a partial structure of an electric rolling door provided in some embodiments of the present application. The drive assembly 104 includes a driver 1041, a drive shaft 1042, and a pair of sprockets 1043. The pair of sprockets 1043 are disposed on the inner side of the third bracket 1013. The teeth and grooves of the sprockets 1043 cooperate with the transmission shaft 103 to transmit the driving force output by the driver 1041 to the transmission shaft 103, so that the transmission shaft 103 drives the rolling door 102 to move within the track of the bracket assembly 101 as the sprockets 1043 rotate. The drive shaft 1042 is connected between the pair of sprockets 1043. The driver 1041 is in transmission connection with the drive shaft 1042. The driver 1041 drives the drive shaft 1042 to rotate, thereby driving the sprockets 1043 to rotate. Specifically, when the driver 1041 is in operation, the drive shaft 1042 rotates, driving the two sprockets 1043 to rotate synchronously. The teeth and grooves of the sprocket 1043 cooperate with the transmission shaft 103 to transmit power, and the transmission shaft 103 drives the door panel body 1021 to which it is connected to slide along the track of the bracket assembly 101. The driver 1041 can be a single motor or a combination of a motor and a transmission structure such as a reducer. In other words, the motor can be indirectly connected to the sprocket 1043 through a transmission structure such as a reducer, thereby adapting to a variety of working scenarios. It is understood that the driver 1041 can be located outside the third bracket 1013 and transmission-connected to one end of the drive shaft 1042, or it can be located inside the two third brackets 1013 and transmission-connected to the drive shaft 1042.

[0031] Furthermore, the first bracket 1011 is perpendicular to the second bracket 1012. A first track 1011a is provided on the first bracket 1011, a second track 1012a is provided on the second bracket 1012, and a curved track 1013a is provided on the third bracket 1013. The curved track 1013a connects the first track 1011a and the second track 1012a. In this manner, the rolling door 102 can slide along the first track 1011a, the curved track 1013a, and the second track 1012a under the drive of the drive assembly 104. In this embodiment, when the electric rolling door 100 is opened, the drive assembly 104 drives the rolling door 102 along the first track 1011a and the curved track 1013a into the second track 1012a. When the electric rolling door 100 is closed, the drive assembly 104 drives the rolling door 102 along the second track 1012a and the curved track 1013a into the first track 1011a.

[0032] Furthermore, a flanged roller 106 is sleeved onto the drive shaft 103 and sleeved onto the protrusion 1031. The flanged roller 106 engages with the teeth and grooves of the sprocket 1043. This significantly reduces frictional resistance during the movement of the rolling door 102, making the movement of the rolling door 102 smoother, reducing the driving force required to move the rolling door 102, improving operational efficiency, and reducing wear between components.

[0033] See also Figure 6 , Figure 6 Schematic diagram of a chain and a transmission shaft provided in other embodiments of the present application. In other embodiments, the electric rolling shutter door 100 further includes a chain 107. The chain 107 is connected to the transmission shaft 103. Specifically, the chain 107 is connected to the protrusion 1031. The chain 107 is meshed with the sprocket 1043. The chain 107 is preferably a roller chain. The roller is preferably a flange roller 106. The flange roller 106 is sleeved on the transmission shaft 103. The flange roller 106 can transmit the tension of the chain 107 to the sprocket 1043 meshed therewith, thereby realizing transmission between the chain 107 and the sprocket 1043. This improves the load-bearing capacity of the transmission system, reduces wear, and improves the stability and reliability of the system.

[0034] Please refer to Figure 1-6 Furthermore, the electric rolling door 100 further includes a coil spring 108 and a receiving box 109. One end of the coil spring 108 is connected to the rolling door panel 102. The other end of the coil spring 108 is connected to the receiving box 109. The receiving box 109 is located at the end of the second bracket 1012 away from the first bracket 1011. In this manner, when the electric rolling door 100 is closed, the coil spring 108 unwinds, generating a pulling force that balances the weight of the rolling door slat 102, reduces the output torque of the driver 1041, and protects the driver 1041. When the electric rolling door 100 is opened, the coil spring 108 provides additional force to move the rolling door slat 102 along the first track 1011a and the curved track 1013a into the second track 1012a, reducing the operating pressure and wear of the driver 1041. Furthermore, if the driver 1041 malfunctions, the rolling door slat 102 can slide along the track of the bracket assembly 101 under the tension of the coil spring 108, preventing the electric rolling door 100 from being unable to open. When the electric rolling door 100 is fully opened, the coil spring 108 retracts into the accommodating box 109. In this embodiment, two coil springs 108 are provided, one located along each of the two second brackets 1012. Correspondingly, there are two accommodating boxes 109, which are respectively connected to the two second brackets 1012. The coil spring 108 moves within the second track 1012a during the winding and unwinding process.

[0035] Furthermore, the electric rolling door 100 includes a door head guard 110. The door head guard 110 is connected between a pair of third brackets 1013. The door head guard 110 is used to protect the door body 1021 located between the third brackets 1013, protecting the rolling door 102 from direct impact and damage from the external environment. For example, it prevents dust, debris, rainwater, or other objects from entering the gap between the door body 1021 and the drive shaft 103, thereby reducing the risk of wear, jamming, or damage caused by external factors.

[0036] Furthermore, a seal 111 is provided between the first bracket 1011 and the rolling door slat 102 of the electric rolling door 100 provided in this embodiment. This seal 111 is used to eliminate the gap between the outer wall of the rolling door slat 102 and the first bracket 1011, preventing external environmental factors (such as dust, rain, sand, and stones) from entering the door through the gap. The seal 111 is made of an elastic material, such as rubber, silicone, or polyurethane, and can deform according to the shape of the rolling door slat 102 and the track, thereby achieving a good sealing effect.

[0037] Furthermore, the electric rolling door 100 provided in this embodiment also includes a plurality of guide wheels 112. The guide wheels 112 are rotatably connected to the protrusion 1031, and the rolling door slat 102 is movably connected to the bracket assembly 101 via the guide wheels 112. The guide wheels 112 roll within the tracks of the bracket assembly 101. A clearance compensator 105 is located between the guide wheels 112 and the bracket assembly 101 to eliminate clearance between the guide wheels 112 and the bracket assembly 101.

[0038] Furthermore, one drive shaft 103 is inserted between two adjacent door blade bodies 1031 from one end along the length of the door blade body 1021, and another drive shaft 103 is inserted between the bodies of two adjacent door blades 1021 from the other end along the length of the door blade body 1021, thereby independently supporting and guiding both ends of the rolling door blade 102. This approach effectively prevents deflection or swinging of the rolling door blade 102 during operation, improving the stability and precision of the electric rolling door 100. For example, during operation of the electric rolling door 100, if the track provided on the support assembly 101 becomes partially bent or uneven, the drive shafts 103 at both ends of the rolling door blade 102 can independently adjust the contact between the door blade body 1021 and the track, thereby preventing jamming, reducing wear, and enhancing the stability and reliability of the electric rolling door 100.

[0039] Furthermore, the electric rolling door 100 also includes at least one limit switch 113. The limit switch 113 is connected to the bracket assembly 101. The limit switch 113 is triggered when the rolling door piece 102 moves to a predetermined position. When the rolling door piece 102 moves to the predetermined position, the limit switch 113 stops the rolling door piece 102 from moving. In this embodiment, a limit switch 113 is provided at one end of the second bracket 1012 connected to the third bracket 1013 to more accurately detect the movement state of the rolling door piece 102. Specifically, when the rolling door piece 102 reaches the predetermined fully open or closed position, the limit switch 113 is immediately triggered, promptly cutting off the power supply to the motor, ensuring that the rolling door piece 102 can accurately and reliably stop at the predetermined position, and preventing the rolling door piece 102 from falling off the track. This improves the operating efficiency of the electric rolling door 100 and avoids mechanical damage and safety hazards caused by excessive movement.

[0040] Furthermore, the electric rolling door 100 provided in this embodiment is also equipped with a locking assembly 114. In this embodiment, the locking assembly 114 includes a locking grid and a locking mechanism. The locking grid is disposed on the door body 1021 at the rear end of the rolling door slat 102. It should be noted that the rear end of the rolling door slat 102 here refers to the end proximal to the second bracket 1012 when the electric rolling door 100 is in the closed position. The locking mechanism provided in this embodiment includes a locking pin that cooperates with the locking grid to lock and unlock the rolling door slat 102. The locking assembly 114 can be locked and unlocked electrically or manually. In other words, the locking mechanism provided in this embodiment utilizes an electronic locking system while retaining the functionality of a conventional mechanical lock. If electronic locking or unlocking fails, the mechanical lock provides an emergency release. Furthermore, after electronic locking, the mechanical lock can be used to relock the door, preventing the rolling door from opening due to misoperation.

[0041] Furthermore, the electric rolling door 100 provided in this embodiment further includes a door handle 115, which is located at the bottom center of the rolling door piece 102. It is convenient to pull the rolling door piece 102 by hand.

[0042] The electric rolling door 100 provided in the present application includes: a bracket assembly 101, on which a track is provided; a rolling door piece 102, wherein the rolling door piece 102 includes a plurality of door piece bodies 1021, the plurality of door piece bodies 1021 are connected in series in sequence, and the ends of the door piece bodies 1021 in the longitudinal direction are movably connected to the bracket assembly 101; a transmission shaft 103, which is inserted between two adjacent door piece bodies 1021, and the transmission shaft 103 has a protrusion 1031 protruding from the rolling door piece 102, and the protrusion 1031 is located in the track of the bracket assembly 101; a driving assembly 104, which is connected to the bracket assembly 101, and the driving assembly 104 cooperates with the transmission shaft 103 to drive the rolling door piece 102 to move along the track of the bracket assembly 101; at least one gap compensation member 105, which is connected to the two protrusions 1031 located on the same side of the rolling door piece 102, and the gap compensation member 105 is used to eliminate the gap between the transmission shaft 103 and the bracket assembly 101. In the technical solution of the present application, a gap compensating member 105 is provided between the transmission shaft 103 and the bracket assembly 101 to effectively eliminate the gap between the transmission shaft 103 and the track of the bracket assembly 101. In this way, the operating stability of the electric rolling door 100 can be improved, noise can be reduced, and the service life of the electric rolling door 100 can be increased.

[0043] The above descriptions are only some embodiments of the present application and do not limit the scope of protection of the present application. Any equivalent device or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

Claims

1. An electric rolling door, characterized in that: include: A bracket assembly, wherein the bracket assembly is provided with a track; A rolling door panel, comprising a plurality of door panel bodies, the plurality of door panel bodies being sequentially connected in series, and the ends of the door panel bodies in the longitudinal direction being movably connected to the bracket assembly; A transmission shaft is inserted between two adjacent door leaf bodies, the transmission shaft having a protruding portion protruding from the rolling door leaf, and the protruding portion is located in the track of the bracket assembly; A driving assembly connected to the bracket assembly, wherein the driving assembly cooperates with the transmission shaft to drive the rolling door sheet to move along the track of the bracket assembly; At least one gap compensating member is connected to the two protruding portions located on the same side of the rolling door sheet, and the gap compensating member is used to eliminate the gap between the transmission shaft and the bracket assembly.

2. The electric rolling shutter door according to claim 1, characterized in that: The clearance compensating member includes a connecting portion and two clearance eliminating portions respectively connected to both ends of the connecting portion, wherein the two clearance eliminating portions of the clearance compensating member are respectively connected to the protruding portion of the transmission shaft; the clearance eliminating portion includes a first action plate and a second action plate, wherein the first end of the first action plate and the first end of the second action plate are both integrally connected to the connecting portion; The first action plate is connected to the protruding portion, and the second action plate is in contact with the bracket assembly. In the same gap elimination portion, a deformation gap is provided between the first action plate and the second action plate, and the second end of the first action plate is spaced apart from the second end of the second action plate. When the transmission shaft is displaced along the first direction along with the door panel body, the first action plate and the second action plate of at least one of the gap compensation members are elastically deformed toward the deformation gap; Wherein, the first direction is the length direction of the door panel body.

3. The electric rolling door according to claim 2, characterized in that: The first action plate is provided with a card interface, and the card interface is engaged with the protrusion; the second action plate is provided with a protrusion on a side away from the deformation gap, and the protrusion abuts against the inner wall of the track of the bracket assembly.

4. The electric rolling door according to claim 1, characterized in that: The bracket assembly includes a pair of first brackets arranged in parallel, a pair of second brackets arranged in parallel and connected to the first brackets, and a pair of third brackets connected between the first brackets and the second brackets; The drive assembly includes a driver, a drive shaft and a pair of sprockets; the pair of sprockets are arranged on the inner side of the third bracket, and the tooth grooves of the sprockets cooperate with the transmission shaft, so that as the sprockets rotate, the transmission shaft drives the rolling door sheet to move in the track of the bracket assembly; the drive shaft is connected between the pair of sprockets; the driver is in transmission connection with the drive shaft to drive the drive shaft to rotate, thereby driving the sprocket to rotate.

5. The electric rolling door according to claim 4, characterized in that: The first bracket is perpendicular to the second bracket; the first bracket is provided with a first track, the second bracket is provided with a second track, and the third bracket is provided with an arc track, and the arc track connects the first track and the second track.

6. The electric rolling door according to claim 5, characterized in that: A flange roller is sleeved on the transmission shaft, the flange roller is sleeved on the protruding portion, and the flange roller is matched with the tooth groove of the sprocket.

7. The electric rolling door according to claim 5, characterized in that: The electric rolling door further comprises a chain, which is connected to the transmission shaft and meshed with the sprocket; the chain is a roller chain.

8. The electric rolling shutter door according to claim 5, characterized in that: The electric rolling door further includes a coil spring and a accommodating box, one end of the coil spring is connected to the rolling door piece, and the other end of the coil spring is connected to the accommodating box, and the accommodating box is located at an end of the second bracket away from the first bracket.

9. The electric rolling shutter door according to claim 5, characterized in that: The electric rolling door further comprises a door head baffle, which is connected between a pair of the third brackets and is used to protect the door panel body located between the third brackets.

10. The electric rolling door according to claim 5, characterized in that: A sealing member is further provided between the first bracket and the rolling door piece, and the sealing member is used to eliminate the gap between the outer wall of the rolling door piece and the first bracket.

11. The electric rolling door according to claim 1, characterized in that: The electric rolling door also includes a plurality of guide wheels, which are rotatably connected to the protrusions, and the rolling door piece is movably connected to the bracket assembly through the guide wheels; the gap compensation member is located between the guide wheels and the bracket assembly to eliminate the gap between the guide wheels and the bracket assembly.

12. The electric rolling door according to claim 1, characterized in that: One transmission shaft is inserted between two adjacent door panels from one end of the door panel body in the length direction, and the other transmission shaft is inserted between two adjacent door panels from the other end of the door panel body in the length direction.

13. The electric rolling door according to claim 1, characterized in that: The electric rolling door also includes at least one limit switch, which is fixed to the bracket assembly. The limit switch is triggered when the rolling door piece moves to a predetermined position. When the rolling door piece moves to the predetermined position, the limit switch stops the rolling door piece from moving.

14. The electric rolling door according to claim 1, characterized in that: The electric rolling door is also provided with a locking assembly, which can be locked and unlocked electrically or manually.

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