A rolling door

Abstract

The present disclosure relates to the technical field of rolling door machines, and discloses a rolling door, including a door post, a traction assembly, and a door body; the traction assembly is arranged between the door post and the door body, and is used to drive the door body to slide; the door body includes a curtain body assembly, and the curtain body assembly includes: an outer skin, with a filler arranged inside; a traction bracket, which is attached to and fixed on one side of the outer skin, and the traction bracket is fixed to the traction assembly. Compared with the prior art, in the rolling door provided in the embodiment of the present disclosure, the traction bracket is attached to and fixed on one side of the outer skin. When installing the traction bracket, the traction bracket does not need to extend into the left and right ends of the door body, so there is no need to hollow out the internal polyurethane at the left and right ends of the door body in advance, which can solve the problem in the prior art that the process of replacing the door panel is more complicated due to the more complicated assembly process of the rolling door.

Description

Technical Field

[0001] The present disclosure relates to the technical field of rolling door machines, and in particular to a rolling door. Background Art

[0002] Rolling shutters are made up of multiple articulated shutters connected in series. They rotate up and down along a fixed slideway, pivoting around a reel above the door. They are widely used in shops, garages, warehouses, and other settings.

[0003] Currently, the assembly process of rolling shutter doors is rather cumbersome, which makes the process of replacing door panels more complicated. Summary of the Invention

[0004] The embodiment of the present disclosure aims to provide a rolling shutter door to solve the technical problem of complicated door panels caused by the complicated assembly process of the rolling shutter door in the prior art.

[0005] The embodiment of the present disclosure solves its technical problems by adopting the following technical solutions: providing a rolling shutter door, comprising a door post, a traction assembly and a door body; the traction assembly is arranged between the door post and the door body, and is used to drive the door body to slide; the door body includes a curtain body assembly, and the curtain body assembly includes: an outer skin with a filler arranged inside; and a traction bracket, which is attached to and fixed on one side of the outer skin, and the traction bracket is fixed to the traction assembly.

[0006] In some embodiments, the traction bracket includes a bracket extension portion, one end of the bracket extension portion has a bracket fitting portion extending toward one side, and the other end of the bracket extension portion has a bracket fixing portion extending toward the other side; the outer skin includes a first side panel and a second side panel arranged opposite to each other; the bracket fitting portion fits the outer side of the first side panel, the bracket extension portion faces the end surface of the outer skin, and the bracket fixing portion is fixed to the traction assembly.

[0007] In some embodiments, the rolling shutter door includes a fastener; the fastener passes through the outer skin to fix the outer skin and the traction bracket together; wherein, the curtain body assembly includes a back panel, the back panel is attached to the outer side of the second side panel, and the fastener passes through the bracket attachment portion, the first side panel, the second side panel and the back panel to fix the back panel, the outer skin and the traction bracket together.

[0008] In some embodiments, the curtain body assembly also includes a bottom curtain; the bottom curtain includes a first clamping portion and a second clamping portion, the first clamping portion is arranged between the first side panel and the bracket fitting portion, and the second clamping portion is arranged between the back panel and the second side panel; the fastener is sequentially passed through the bracket fitting portion, the first clamping portion, the first side panel, the second side panel, the second clamping portion and the back panel to fix the traction bracket, the back panel, the outer skin and the bottom curtain together.

[0009] In some embodiments, the traction bracket includes a mounting block; the mounting block is protruded from the side of the bracket extension portion facing the outer skin, the mounting block is in contact with the inner side of the back plate, and the mounting block and the back plate are fixed by connecting bolts.

[0010] In some embodiments, the curtain assembly includes a sliding mechanism, the sliding mechanism is connected to the traction bracket, the sliding mechanism includes a pulley; the door post is provided with a guide rail; the pulley cooperates with the guide rail.

[0011] In some embodiments, the sliding mechanism includes a pulley bracket; the pulley bracket is fixed to the traction bracket, and the pulley is rotatably connected to the pulley bracket.

[0012] In some embodiments, the door body includes a plurality of curtain bodies, the plurality of curtain bodies are hinged end to end, and the curtain body assembly is one of the plurality of curtain bodies.

[0013] In some embodiments, the curtain body includes a first hinge seat and a second hinge seat; the first hinge seat of the curtain body of the lower layer is hinged to the second hinge seat of the curtain body of the upper layer through a rotating shaft; a limiting structure is provided at one end of the rotating shaft, and a fixing hole is radially opened at the other end of the rotating shaft, and a fixing pin is passed through the fixing hole, and the first hinge seat and the second hinge seat are located between the limiting structure and the fixing pin; or, a guide wheel is connected to the end of the rotating shaft, and the guide wheel cooperates with the guide rail.

[0014] In some embodiments, the outer peripheral sleeve of the rotating shaft is provided with a wear-resistant sleeve.

[0015] In some embodiments, the outer skin includes a mounting portion;

[0016] The mounting portion is folded back and forth to form a multi-layer structure, and the fastener passes through the multi-layer structure.

[0017] Compared to the prior art, in the rolling shutter door provided by the disclosed embodiment, the traction bracket is attached and fixed to one side of the outer skin. When installing the traction bracket, it does not need to extend into the left and right ends of the door body. Therefore, there is no need to pre-emptively hollow out the polyurethane inside the left and right ends of the door body. This can solve the problem of the complicated door panel replacement process caused by the complicated assembly process of the rolling shutter door in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 A schematic structural diagram of a rolling door provided in one embodiment of the present disclosure;

[0020] Figure 2 for Figure 1 The structural diagram of the door body of the rolling door shown;

[0021] Figure 3 for Figure 2 A disassembled schematic diagram of the curtain assembly of the door body is shown;

[0022] Figure 4 for Figure 3 The schematic diagram of the structure of the outer skin of the curtain body assembly shown, wherein the outer skin is filled with filler;

[0023] Figure 5 for Figure 4 A partial enlarged view of position I shown;

[0024] Figure 6 for Figure 3 A schematic structural diagram of the traction bracket of the curtain assembly shown;

[0025] Figure 7 for Figure 3 The structural schematic diagram of the curtain body assembly shown;

[0026] Figure 8 for Figure 7 The cross-sectional view at AA is shown;

[0027] Figure 9 for Figure 8 A partial enlarged view of position II shown;

[0028] Figure 10 for Figure 3 A schematic structural diagram of the traction bracket and sliding mechanism of the curtain assembly shown;

[0029] Figure 11 for Figure 10 Schematic diagram of the disassembly of the traction bracket and sliding mechanism;

[0030] Figure 12 for Figure 3 A schematic structural diagram of the bottom curtain of the curtain body assembly shown;

[0031] Figure 13 for Figure 7 A schematic cross-sectional view of BB is shown;

[0032] Figure 14 for Figure 13 A partial enlarged view of point III shown;

[0033] Figure 15 for Figure 3 The schematic diagram of the structure of the outer skin and fasteners of the curtain body assembly shown;

[0034] Figure 16 for Figure 2 A schematic structural diagram of the connection between the curtain body assembly of the door body and the auxiliary curtain body is shown;

[0035] Figure 17 for Figure 2 The schematic diagram of the structure of the connection between the auxiliary curtain bodies of the door body is shown.

[0036] The reference numerals are shown in the table below:

[0037]

[0038] DETAILED DESCRIPTION

[0039] In order to facilitate understanding of the present disclosure, the present disclosure will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the art of the present disclosure. The terms used in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0041] Currently, the interior of rolling shutter doors is filled with polyurethane. During assembly, traction brackets need to be inserted into the left and right ends of the door body and secured with threaded fasteners. Therefore, the polyurethane inside the door body must be partially hollowed out at the left and right ends to reserve space for the traction brackets. Consequently, when replacing the new door panel, the polyurethane inside the new door panel must be partially hollowed out again. This hollowing out operation is tedious, time-consuming, and labor-intensive, making the door panel replacement process more complicated.

[0042] See also Figures 1 to 3 One embodiment of the present disclosure discloses a rolling door 100, comprising a door post 10, a traction assembly 20, and a door body 30. The traction assembly 20 is disposed between the door post 10 and the door body 30, and is used to drive the door body 30 to slide, so that the door body 30 is in an open or closed state.

[0043] The door body 30 includes a curtain assembly 32. The curtain assembly 32 includes an outer skin 320, a traction bracket 322, and a fastener 324. A filler is provided inside the outer skin 320. The traction bracket 322 is attached to and fixed to one side of the outer skin 320.

[0044] The traction bracket 322 is connected to the traction assembly 20 .

[0045] By attaching and fixing the traction bracket 322 to one side of the outer skin 320, when installing the traction bracket 322, the traction bracket 322 does not need to extend into the left and right ends of the door body, so there is no need to hollow out the polyurethane inside the left and right ends of the door body in advance, which can solve the problem of the complicated process of replacing the door panel due to the complicated assembly process of the rolling shutter door in the prior art.

[0046] It should be noted that the side to which the traction bracket 322 is attached may be the side of the outer skin 320 facing indoors, or the side of the outer skin 320 facing outdoors.

[0047] In some embodiments, the fasteners 324 penetrate the outer skin 320 and the traction bracket 322 to fix the outer skin 320 and the traction bracket 322 together, thereby fixing the traction bracket 322 to the outer skin 320 .

[0048] The doorpost 10 is vertically arranged and can have two, two doorposts 10 facing each other. Each doorpost 10 is provided with a guide rail 12 extending in the vertical direction. The guide rail 12 is used to guide the door body 30 to slide up and down.

[0049] The traction assembly 20 may include a motor 22, a reducer 24, two sprocket mechanisms 26, and a drive shaft 28. The motor 22 and reducer 24 are fixed to one of the doorposts 10, with the output shaft of the motor 22 connected to the input shaft of the reducer 24. The drive shaft 28 is disposed at the top of both doorposts 10, with one end of the drive shaft 28 connected to the output shaft of the reducer 24. Each sprocket mechanism 26 includes a driving wheel 260, a driven wheel 262, and a chain 264. The chain 264 is connected between the driving wheel 260 and the driven wheel 262. The driving wheel 260 is sleeved on the drive shaft 28 and fixed coaxially therewith. The driving wheels 260 of the two sprocket mechanisms 26 are respectively located near the ends of the drive shaft 28. The driven wheels 262 of the two sprocket mechanisms 26 are respectively rotatably connected to the bottom of the two doorposts 10.

[0050] There are two traction brackets 322. The two traction brackets 322 are respectively arranged on both sides of the outer skin 320. The two traction brackets 322 are respectively fixed to the chains 264 of the two sprocket mechanisms 26.

[0051] During operation, the motor 22 drives the transmission shaft 28 to rotate through the reducer 24, which can play a role in reducing speed and increasing torque. When the transmission shaft 28 rotates, it drives the transmission wheel 260 to rotate together, thereby driving the chain 264 to move up and down, and then driving the door body 30 to slide up and down.

[0052] The two sprocket mechanisms 26 can be provided to evenly load both sides of the door body 30 and can slide up and down smoothly. It is understandable that, according to actual needs, only one sprocket mechanism 26 can be provided to drive the door body 30 to slide up and down.

[0053] It is understood that the traction assembly 20 is not limited to the above-mentioned form. According to actual needs, the traction assembly 20 can be replaced with any form of power mechanism, for example, a cylinder can be used to drive the door body 30 to slide up and down, or a sprocket mechanism can be replaced with a pulley mechanism, a screw mechanism, or other transmission mechanism. This disclosure does not impose any restrictions on this, as long as it can drive the door body 30 to slide up and down.

[0054] The door body 30 includes a plurality of curtains that are hinged end to end. When the door body 30 slides to a closed state, the curtains are unwound and unfolded; when the door body 30 slides to an open state, the curtains are rolled into a bundle.

[0055] The curtain body assembly 32 is one of several curtain bodies.

[0056] The curtain assembly 32 may be the curtain located at the bottom layer among a plurality of curtains.

[0057] It is understandable that, according to actual needs, the curtain body assembly 32 can be any one of several curtain bodies.

[0058] The outer skin 320 can be formed by bending a metal sheet and is provided with an inner cavity 3200 . The inner cavity 3200 has two openings, and the two openings are respectively provided on the end surfaces of two opposite sides of the outer skin 320 .

[0059] The filler is arranged in the inner cavity 3200. The filler is used to support the outer skin 320. The filler can be polyurethane, and the polyurethane is foamed and formed in the inner cavity 3200.

[0060] The outer skin 320 includes a first side panel 3201, a second side panel 3202, a top panel 3203, and a bottom panel 3204. The top panel 3203 is positioned above the bottom panel 3204, opposing the top panel 3203 and the bottom panel 3204. The first side panel 3201 and the second side panel 3202 are positioned opposite each other and disposed between the top panel 3203 and the bottom panel 3204. The first side panel 3201, the second side panel 3202, the top panel 3203, and the bottom panel 3204 collectively define an inner cavity 3200. One of the first side panel 3201 and the second side panel 3202 faces indoors, while the other faces outdoors. The traction bracket 322 is positioned in contact with the first side panel 3201.

[0061] The first side panel 3202 includes two mounting portions 3205 and a recessed portion 3206. One mounting portion 3205 is located near the top panel 3203, and the other mounting portion 3205 is located near the bottom panel 3204. The recessed portion 3206 is located between the two mounting portions 3205 and is recessed toward the inner cavity 3200. The mounting portions 3205 can be used to pass fasteners 324. The recessed portion 3206 can form an inwardly concave tile-shaped structure, which can enhance the strength of the outer skin 320.

[0062] See also Figure 4 and Figure 5 If the outer skin 320 is not strong enough, for example, if the outer skin 320 is thin, the fasteners 324 passing through the outer skin 320 may damage the outer skin 320. To avoid this problem, the mounting portion 3205 can be folded back and forth to form a multi-layer structure. The multi-layer structure is thicker, and the fasteners 324 passing through the multi-layer structure are less likely to damage the outer skin. In addition, because the multi-layer structure is formed by folding the mounting portion 3205 back and forth, the multi-layer structure is integrated, and the overall strength is higher.

[0063] If the outer skin 320 is not strong enough, the fasteners 324 may directly act on the outer skin 320, potentially damaging it. To avoid this problem, the curtain assembly 32 may include a back panel 326. The back panel 326 and the traction bracket 322 are attached to opposite sides of the outer skin 320. Specifically, the traction bracket 322 is attached to the outer side of the first side panel 3201, and the back panel 326 is attached to the outer side of the second side panel 3202. It should be noted that the outer side of the first side panel 3201 is the side of the first side panel 3201 away from the second side panel 3202, and the inner side of the first side panel 3201 is the side of the first side panel 3201 closer to the second side panel 3202. The outer side of the second side panel 3202 is the side of the second side panel 3202 away from the first side panel 3201, and the inner side of the second side panel 3202 is the side of the second side panel 3202 closer to the first side panel 3201. The back plate 320 extends slightly beyond the end surface of the outer skin 320 and is used for screwing. Fasteners 324 penetrate the back plate 326, the outer skin 320, and the traction bracket 322, pressing the back plate 326, the outer skin 320, and the traction bracket 322 together. The back plate 326 provides a point of engagement for the fasteners 324, preventing damage to the outer skin 320 due to insufficient strength.

[0064] It is understandable that the back plate 326 may be omitted according to actual needs.

[0065] See also Figures 6 to 9 The traction bracket 322 includes a bracket fitting portion 3220, a bracket extension portion 3222, and a bracket fixing portion 3224. One end of the bracket extension portion 3222 extends to one side with the bracket fitting portion 3220. The other end of the bracket extension portion 3222 extends to the other side with the bracket fixing portion 3224.

[0066] The bracket-fitting portion 3220 fits against the outer side of the outer skin 320, specifically, the outer side of the first side panel 3201. The bracket extension portion 3222 faces the end surface of the outer skin 320, that is, the bracket extension portion 3222 faces the end surface of the outer skin 320 and the opening of the inner cavity 3200. The fastener 324 passes through the bracket-fitting portion 3220. The bracket extension portion 3222 connects to the bracket-fitting portion 3220 and extends along the end surface of the outer skin 320 to the other side of the outer skin 320, that is, to the side facing the second side panel 3202.

[0067] The bracket extension 3222 extends along the end surface of the outer skin 320, which can block the cavity 3200 provided at the end surface, thereby preventing dust and other debris from entering the cavity 3200. At the same time, it can also block the filling material in the cavity 3200, which is more beautiful.

[0068] The bracket fixing portion 3224 is connected to the bracket extending portion 3222 and extends in a direction away from the outer skin 320. The bracket fixing portion 3224 can be fixed to the chain 264 by screws to achieve the fixing of the bracket fixing portion 3224 to the traction assembly 20.

[0069] The traction bracket 322 may include a mounting block 3226. The mounting block 3226 is protruding from the side of the bracket extension 3222 that is closest to the outer skin 320. The mounting block 3226 abuts against the inner side of the back plate 326. The inner side of the back plate 326 is the side closest to the outer skin 320, while the outer side of the back plate 326 is the side away from the outer skin 320. The mounting block 3226 abuts against the portion of the back plate 326 that extends beyond the end face of the outer skin 320. The curtain assembly 32 may include connecting bolts 3227. The connecting bolts 3227 extend through the back plate 326 and the mounting block 3226, securing the two together and strengthening the connection between the back plate 326 and the traction bracket 322.

[0070] There can be multiple mounting blocks 3226, which are arranged side by side in the vertical direction. There can be multiple groups of connecting bolts 3227, each group of connecting bolts 3227 passes through the back plate 326 and a corresponding mounting block 3226 to fix the back plate 326 and the mounting block 3226 together.

[0071] See also Figure 10 and Figure 11 The curtain assembly 32 may include a sliding mechanism 327. The sliding mechanism 327 is fixed to the traction bracket 322. The sliding mechanism 327 includes a pulley 3270. The pulley 3270 cooperates with the guide rail 12 to guide the door body 30 to slide up and down. The pulley 3270 may be disposed on a side of the bracket extension 3222 near the bracket fixing portion 3224. There are multiple pulleys 3270, and the multiple pulleys 3270 are arranged side by side in a vertical direction. The multiple pulleys 3270 can evenly distribute the pressure between the curtain assembly 32 and the doorpost 10.

[0072] The sliding mechanism 327 may include a pulley bracket 3272 . The pulley bracket 3272 is fixed to the traction bracket 322 , and the pulley 3270 is rotatably connected to the pulley bracket 3272 . Specifically, the axle of the pulley 3270 may be riveted to the pulley bracket 3272 .

[0073] The pulley bracket 3272 is a generally L-shaped plate, comprising a first mounting plate 3273 and a second mounting plate 3274. The first mounting plate 3273 is located on the side of the bracket extension 3222 away from the outer skin 320 and is secured to the bracket extension 3222 via bolts. The second mounting plate 3274 is connected to the first connecting plate 3273 and is located on the side of the bracket fixing portion 3224 closer to the bracket extension 3222. The second mounting plate 3274 is secured to the bracket extension 3222 via bolts. The pulley 3270 is located on the side of the first mounting plate 3273 away from the outer skin 320, with the pulley 3270's axle riveted to the first mounting plate 3273.

[0074] By arranging the pulley bracket 3272 between the pulley 3270 and the traction bracket 322, when the pulley 3270 needs to be replaced, it is only necessary to remove the pulley bracket 3272 from the traction bracket 322 without replacing the traction bracket 322, which is economical.

[0075] It is understandable that, according to actual needs, the pulley bracket 3272 can also be omitted. For example, the axle of the pulley 3270 can be directly riveted to the bracket extension 3222.

[0076] See also Figures 12 to 14 The curtain assembly 32 may include a bottom curtain 328. The bottom curtain 328 is fixed to the bottom of the outer skin 320. The bottom curtain 328 includes a bottom curtain body 3280 and a bottom curtain bracket 3282. The bottom curtain body 3280 is fixed to the bottom of the bottom curtain bracket 3282, and the bottom curtain bracket 3282 is fixed to the bottom of the outer skin 320.

[0077] The bottom curtain body 3280 is generally in the shape of a hollow wedge, and a block 3284 is protruding from the top of the bottom curtain body 3280 .

[0078] The bottom of the bottom curtain bracket 3282 is provided with a card slot 3286. The card block 3284 is engaged with the card slot 3286 to achieve fixing the bottom curtain body 3280 to the bottom of the bottom curtain bracket 3282.

[0079] It is understandable that the positions of the block 3284 and the slot 3286 can be interchanged.

[0080] The bottom curtain bracket 3282 includes a bracket base 3287, a first clamping portion 3288, and a second clamping portion 3289. The bracket base 3287 is located at the bottom of the outer skin 320. A slot 3286 is defined in the bottom of the bracket base 3287. The first clamping portion 3288 and the second clamping portion 3289 are connected to the bracket base 3287. The first clamping portion 3288 extends along the first side panel 3201 of the outer skin 320, while the second clamping portion 3289 extends along the second side panel 3202 of the outer skin 320. Specifically, the top of the second clamping portion 3289 is slightly higher than the mounting portion 3205 near the bottom panel 3204, and the tops of the first clamping portion 3288 and the second clamping portion 3289 are substantially flush. The first clamping portion 3288 is disposed between the first side panel 3201 and the bracket fitting portion 3220, that is, between the outer skin 320 and the bracket fitting portion 3220. The second clamping portion 3289 is disposed between the second side panel 3202 and the back panel 326, that is, between the outer skin 320 and the back panel 326.

[0081] The top of the second clamping portion 3289 can be bent toward the outer skin 320 to form a hook structure 3290. A step structure is formed between the mounting portion 3205 near the bottom plate 3204 and the recessed portion 3206. The bottom curtain 328 can be hung on the step structure via the hook 3290, which has a positioning function and facilitates installation.

[0082] The fastener 324 passes through the bracket fitting part 3220, the first clamping part 3288, the first side panel 3201, the multi-layer structure of the second side panel 3202, the second clamping part 3289 and the back panel 326 in sequence to fix the bracket fitting part 3220, the first clamping part 3288, the outer skin 320, the second clamping part 3289 and the back panel 326 together.

[0083] There can be multiple fasteners 324 , and the multiple fasteners 324 can be divided into two groups, the upper group of fasteners 324 is close to the top plate 3203 , and the lower group of fasteners 324 is close to the bottom plate 3204 .

[0084] The upper set of fasteners 324 sequentially penetrates the bracket fitting portion 3220, the first side panel 3201, the multi-layer structure near the top panel 3203, and the back panel 326. The lower set of fasteners 324 sequentially penetrates the bracket fitting portion 3220, the first clamping portion 3288, the first side panel 3201, the multi-layer structure near the bottom panel 3204, the second clamping portion 3289, and the back panel 326.

[0085] It is understandable that, according to actual needs, the curtain assembly 32 may not include the bottom curtain 328. For example, the curtain assembly 32 is not the curtain at the bottom layer among the plurality of curtains.

[0086] In this embodiment, the fasteners 324 are described as an example. The fasteners 324 include a fastening bolt 3240 and a connecting thread 3242. The connecting thread 3242 abuts against the side of the traction bracket 322 away from the outer skin 320. The connecting thread 3242 penetrates the traction bracket 322 and extends into the interior of the outer skin 320. The fastening bolt 3240 abuts against the side of the back plate 326 away from the outer skin 320. The fastening bolt 3240 penetrates the back plate 326 and extends into the interior of the outer skin 320. The fastening bolt 3240 and the connecting thread 3242 are threadedly connected.

[0087] The connecting threaded member 3242 includes a threaded end 3243 and a threaded column 3244. The cross-sectional dimensions of the threaded end 3243 are larger than those of the threaded column 3244. The threaded end 3243 abuts against the side of the bracket-fitting portion 3220 away from the outer skin 320. One end of the threaded column 3244 is connected to the threaded end 3243. The threaded column 3244 penetrates the bracket-fitting portion 3220 and the first side plate 3201 and extends into the outer skin 320. A screw hole 3246 is defined on the end surface of the threaded column 3244 away from the threaded end 3242. The fastening bolt 3240 can be an existing bolt on the market. The head of the fastening bolt 3240 rests against the side of the back plate 326 away from the outer skin 320. The stud of the fastening bolt 3240 passes through the back plate 326 and the second side plate 3202 and extends into the outer skin 20. The stud of the fastening bolt 3240 extends into the screw hole 3246 and is screwed into the screw hole 3246.

[0088] See also Figure 15 The connecting screw 3242 may include a limiting portion 3247. One end of the screw column 3244 is connected to the screw end 3243 through the limiting portion 3247. The cross section of the limiting portion 3247 may be square.

[0089] The bracket fitting portion 3220 is provided with a first limiting hole 3221 which passes through the bracket fitting portion 3220. The first limiting hole 3221 can be a square hole. Figure 10 .

[0090] The first side plate 3201 is provided with a second limiting hole 3207 running through the first side plate 3201. The second limiting hole 3207 can be a square hole.

[0091] The limiting portion 3247 is adapted to fit within the first limiting hole 3221 and the second limiting hole 3207, thereby limiting the rotation of the connecting screw 3242 about its own axis. Furthermore, the limiting portion 3247 passes through both the first limiting hole 3221 and the second limiting hole 3207, thereby aligning the traction bracket 322 with the outer skin 320, achieving a registration effect.

[0092] It is understood that the cross-section of the limiting portion 3247 is not limited to a square, and the first limiting hole 3221 and the second limiting hole 3207 are not limited to square holes. Depending on actual needs, the cross-section of the limiting portion 3247 can also be elliptical, triangular, pentagonal, hexagonal, etc., and the first limiting hole 3221 and the second limiting hole 3207 can also be elliptical, triangular, pentagonal, or hexagonal. As long as the cross-section of the limiting portion 3247 is non-circular, the first limiting hole 3221 and the second limiting hole 3207 can be non-circular holes.

[0093] See also Figure 16 Each curtain body includes a first hinge seat 3301 and a second hinge seat 3302. The first hinge seat 3301 of the next curtain body is hinged to the second hinge seat 3302 of the previous curtain body through a rotating shaft 3303.

[0094] Specifically, in order to easily distinguish the curtain body assembly 30 from the other curtain bodies among the plurality of curtain bodies, except for the curtain body assembly, the other curtain bodies are recorded as auxiliary curtain bodies.

[0095] The auxiliary curtain body includes an outer skin and side brackets 340. The outer skin structure of the auxiliary curtain body is essentially the same as that of the curtain body assembly 30. The side brackets 340 are fixed to the end surfaces of the auxiliary curtain body's outer skin. The auxiliary curtain body's first hinge 3301 is located at the top of the side bracket 340, and the auxiliary curtain body's second hinge 3302 is located at the bottom of the side bracket 340.

[0096] The first hinge seat 3301 of the curtain body assembly 30 can be integrally provided with the traction bracket 322 , and specifically can be provided at the top of the bracket extension portion 3222 .

[0097] The structure of the hinged connection between the curtain body assembly 30 and the adjacent auxiliary curtain body is as follows:

[0098] A central section of the rotating shaft 3303 passes through the first hinge seat 3301 and the second hinge seat 3302. One end of the rotating shaft 3303 is connected to the retaining structure 3304. The other end of the rotating shaft 3303 has a radially extending fixing hole 3305, through which a fixing pin 3306 passes. The first hinge seat 3301 and the second hinge seat 3302 are located between the fixing pin 3306 and the retaining structure 3304. The fixing pin 3306 and the retaining structure 3304 function as a retaining mechanism, preventing the rotating shaft 3303 from separating from the first hinge seat 3301 and the second hinge seat 3302.

[0099] The outer periphery of the rotating shaft 3303 may be provided with a wear-resistant sleeve 3307 to prevent the rotating shaft 3303 from excessive wear.

[0100] It is understandable that the wear-resistant sleeve 3307 can be omitted according to actual needs.

[0101] See also Figure 17The structure of the hinged connection between two adjacent auxiliary curtain bodies is as follows: the end of the rotating shaft 3303 is connected to a guide wheel 3308. The guide wheel 3308 abuts the guide rail 12 and can guide the door body 30 to slide up and down.

[0102] It is understandable that, according to actual needs, the structure in which the curtain body assembly 30 is hinged to the adjacent auxiliary curtain bodies can be replaced by a structure in which two adjacent auxiliary curtain bodies are hinged. Similarly, the structure in which two adjacent auxiliary curtain bodies are hinged can be replaced by a structure in which the curtain body assembly 30 is hinged to the adjacent auxiliary curtain bodies. The details will not be repeated here.

[0103] It is understandable that the first hinge seat 3301 of the curtain body at the top layer can be omitted, and the second hinge seat 3302 of the curtain body at the bottom layer can be omitted.

[0104] The rolling door 100 is assembled as follows:

[0105] The doorpost 10 is mounted on the edge of the door.

[0106] The pulling assembly 20 is mounted on the doorpost 10 .

[0107] Assemble the curtain body assembly 30. The first and second side panels 3202 of the outer skin 320 are fixed to the second clamping portion 3289 of the bottom curtain 328. The sliding mechanism 327 is fixed to the traction bracket 322 by bolts. The upper half of the bracket fitting portion 3220 of the traction bracket 322 fits the first side panel 3201, and the lower half of the bracket fitting portion 3220 fits the first clamping portion 3288. The bracket extension portion 3222 of the traction bracket 322 extends along the end surface of the outer skin 320 to the side facing the second side panel 3202. The upper half of the back panel 326 fits the second side panel 3202. The connecting screw 3242 of the upper group fasteners 324 passes through the bracket fitting portion 3220 and the first side panel 3201 and extends into the outer skin 320. The fastening bolts 3240 of the lower fastener 324 pass through the back plate 326 and the second side plate 3202, and extend into the outer skin 320, and are screwed together with the connecting thread 3242 of the upper fastener 324. The connecting thread 3242 of the lower fastener 324 passes through the bracket fitting 3220, the first clamping portion 3288, and the first side plate 3201, and is inserted into the outer skin 320. The fastening bolts 3240 of the lower fastener 324 pass through the back plate 326. , the second clamping portion 3289, the second side plate 3202, and extends into the outer skin 320, and is screwed with the connecting thread 3242 of the lower set of fasteners 324 to fix the traction bracket 322, the back plate 326 and the outer skin 320; the mounting block 3226 of the traction bracket 322 rests against the back plate 326; the connecting bolt 3227 passes through the back plate 326 and the mounting block 3226 to further fix the traction bracket 322 and the back plate 326.

[0108] Assemble the door body 30. Specifically, the first hinge 3301 of the lower curtain body is aligned with the second hinge 3302 of the upper curtain body, and the rotating shaft 3303 passes through the first hinge 3301 and the second hinge 3302, hingedly connecting the first hinge 3301 and the second hinge 3302 together.

[0109] The door body 30 is mounted on the traction assembly 20 and the door post 10. The pulley 3270 of the sliding mechanism 327 cooperates with the guide rail 12 of the door post 10, and the bracket fixing portion 3224 of the traction bracket 322 is fixed to the chain 264 of the traction assembly 30 by bolts.

[0110] When the rolling shutter door 100 is in use, it is generally as follows:

[0111] When the door needs to be opened, the motor 22 rotates forward, driving the connecting shaft 28 and the transmission wheel 260 to rotate forward through the reducer 24, and the transmission wheel 260 drives the door body 30 to slide upward through the chain 264;

[0112] When the door needs to be closed, the motor 22 rotates in the reverse direction, driving the connecting shaft 28 and the transmission wheel 260 to rotate in the reverse direction through the reducer 24 , and the transmission wheel 260 drives the door body 30 to slide downward through the chain 264 .

[0113] In some embodiments, the rolling door 100 includes a spring mechanism 40. The spring mechanism 40 can be used to stretch when the door body 30 slides upward to the door-opening position, and to compress when the door body 30 slides downward to the door-closing position. The spring mechanism 40 accumulates elastic potential energy when being stretched or compressed, and has a buffering effect, which can offset the inertia generated by the door body 30 sliding upward or downward, and can prevent the door body 30 from colliding. Figure 1 shown.

[0114] In addition, since the door body 30 is heavy as a whole, when a power outage occurs, the elastic potential energy accumulated by the compression of the spring mechanism 40 can offset part of the weight of the door body, so that the door body 30 can be lifted more easily to open the door body.

[0115] The motor 22 may be a brake motor, which may be locked when power is lost, thereby preventing the door from falling when it is in an open state during a power outage.

[0116] Compared with the prior art, in the rolling shutter door provided in the embodiment of the present disclosure, the traction bracket 322 is attached to one side of the outer skin 320. When installing the traction bracket 322, the traction bracket 322 does not need to extend into the left and right ends of the door body. Therefore, there is no need to hollow out the polyurethane inside the left and right ends of the door body in advance. This can solve the problem of the complicated process of replacing the door panel due to the complicated assembly process of the rolling shutter door in the prior art.

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Under the concept of the present disclosure, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present disclosure as described above. For the sake of simplicity, they are not provided in detail. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A rolling door, characterized in that: It includes a door post, a traction assembly and a door body; the traction assembly is arranged between the door post and the door body, and is used to drive the door body to slide; The door body includes a curtain body assembly, and the curtain body assembly includes: An outer skin with filler inside; and a traction bracket, attached to and fixed to one side of the outer skin, the traction bracket being fixed to the traction assembly; The traction bracket includes a bracket extension portion, one end of the bracket extension portion extends to one side with a bracket fitting portion, and the other end of the bracket extension portion extends to the other side with a bracket fixing portion; the outer skin includes a first side plate and a second side plate arranged opposite to each other; the bracket fitting portion fits the outer side of the first side plate, the bracket extension portion faces the end surface of the outer skin, and the bracket fixing portion is fixed to the traction assembly; The curtain assembly further includes a fastener, which passes through the outer skin to fix the outer skin and the traction bracket together; wherein the curtain assembly further includes a back panel, which is attached to the outer side of the second side panel, and the fastener passes through the bracket attachment portion, the first side panel, the second side panel and the back panel to fix the back panel, the outer skin and the traction bracket together; The traction bracket includes a mounting block; the mounting block is protruding from the side of the bracket extension portion facing the outer skin, the mounting block is in contact with the inner side of the back plate, and the mounting block and the back plate are fixed by connecting bolts; The curtain body assembly includes a sliding mechanism, the sliding mechanism is connected to the traction bracket, and the sliding mechanism includes a pulley; the door post is provided with a guide rail; the pulley cooperates with the guide rail.

2. The rolling door according to claim 1, characterized in that: The curtain body assembly also includes a bottom curtain; The bottom curtain includes a first clamping portion and a second clamping portion, wherein the first clamping portion is arranged between the first side panel and the bracket fitting portion, and the second clamping portion is arranged between the back panel and the second side panel; The fasteners pass through the bracket fitting portion, the first clamping portion, the first side plate, the second side plate, the second clamping portion and the back plate in sequence to fix the traction bracket, the back plate, the outer skin and the bottom curtain together.

3. The rolling door according to claim 1, characterized in that: The sliding mechanism includes a pulley bracket; The pulley bracket is fixed to the traction bracket, and the pulley is rotatably connected to the pulley bracket.

4. The rolling shutter door according to claim 1, characterized in that: The door body includes a plurality of curtain bodies, the plurality of curtain bodies are hinged end to end, and the curtain body assembly is one of the plurality of curtain bodies.

5. The rolling door according to claim 4, characterized in that: The curtain body includes a first hinge seat and a second hinge seat; The first hinge seat of the curtain body of the next layer is hinged to the second hinge seat of the curtain body of the previous layer through a rotating shaft; A limiting structure is provided at one end of the rotating shaft, a fixing hole is radially opened at the other end of the rotating shaft, a fixing pin is passed through the fixing hole, and the first hinge seat and the second hinge seat are located between the limiting structure and the fixing pin; or The end of the rotating shaft is connected with a guide wheel, and the guide wheel cooperates with the guide rail.

6. The rolling door according to claim 5, characterized in that: The outer peripheral sleeve of the rotating shaft is provided with a wear-resistant sleeve.

7. The rolling door according to claim 1, characterized in that: The outer skin includes a mounting portion; The mounting portion is folded back and forth to form a multi-layer structure, and the fastener passes through the multi-layer structure.

Images