Fast opening and closing door

Abstract

The invention discloses a fast opening and closing door which can be widely applied to multiple different occasions such as airport security check, industrial factory buildings, logistics channels and cold chain workshops and comprises a door frame assembly. A curtain piece driving assembly is arranged on the door frame assembly; the curtain piece driving assembly is connected with the curtain piece transmission assembly and used for driving the curtain piece transmission assembly to move in the vertical direction. A door body is arranged on the curtain piece transmission assembly; the door body comprises a plurality of curtain sheets; the curtain piece transmission assembly comprises two parallel synchronous belts, and the multiple curtain pieces are arranged on the two synchronous belts. A driving shaft in the curtain piece driving assembly is used for synchronously driving the two synchronous belts to rotate, and vertical opening and closing of the door body are achieved. The fast opening and closing door is reasonable in structure, fast in opening and closing, high in stability, high in reliability, capable of effectively improving the operation efficiency of goods or personnel channels, especially suitable for high-frequency and crowded scenes, and beneficial to achieving fast, safe and reliable personnel or material passing.

Description

Technical Field

[0001] This invention relates to the field of door equipment technology, and in particular to a fast-opening and closing door. Background Technology

[0002] A roller shutter door is a sliding door structure that achieves vertical opening and closing through a roller system. Its core feature is that the door body is composed of a series of multi-jointed hinged curtains, and the door is rolled up and down by rotating the roller. This type of door moves vertically within fixed guide rails with the top roller as the center, forming a horizontal space division function, and is widely used in commercial buildings, industrial plants, and civil facilities.

[0003] Currently, roller shutters are widely used in various settings such as airport security, industrial plants, logistics channels, and cold chain workshops. For example, most X-ray security inspection machines used for scanning luggage or parcels in the security field are equipped with traditional flexible roller shutters.

[0004] However, these traditional roller shutters are typically made of soft fabric or PVC materials and are opened and closed by a roller to conceal the entrances and exits of passageways for people or goods. With increasing pedestrian density and heavier cargo handling requirements, traditional flexible roller shutters are gradually revealing the following problems:

[0005] 1. Slow opening and closing speed: Due to material limitations and structural transmission issues, flexible curtain doors cannot meet the needs of high-frequency and high-efficiency passage.

[0006] 2. Poor stability and reliability: Flexible materials are prone to deformation and rapid aging during use, which affects the stable operation of the equipment;

[0007] 3. High maintenance frequency and short lifespan: The frequent opening and closing of flexible curtain doors can easily cause mechanical wear and tear, and the curtain replacement cycle is short, which increases the workload of equipment maintenance and operating costs.

[0008] In view of this, traditional flexible roller shutter doors are no longer able to meet the current needs for efficient and fast-paced passage of people or goods.

[0009] Therefore, there is an urgent need to develop a technology that can solve the above-mentioned technical problems. Summary of the Invention

[0010] The purpose of this invention is to address the technical deficiencies of existing technologies by providing a method for quick door opening and closing.

[0011] Therefore, the present invention provides a quick-opening door, comprising a vertically distributed door frame;

[0012] The door frame is equipped with a left-side column and a right-side column on the left and right sides, respectively;

[0013] The upper and lower ends of the left column are respectively horizontally connected and pivotally mounted with a pulley drive shaft and a pulley driven shaft;

[0014] At the top and bottom ends of the right column, a pulley drive shaft and a pulley driven shaft are respectively horizontally connected and pivotally mounted;

[0015] The pulley drive shaft on the left column is connected to the pulley drive shaft on the right column via a horizontally distributed coupling.

[0016] Among them, the left and right ends of the pulley drive shaft at the upper end of the left column are respectively equipped with sprockets and pulleys;

[0017] At the lower end of the left column, the left and right ends of the driven shaft of the pulley are respectively equipped with a sprocket and a pulley;

[0018] A pulley is provided at the left end of the drive shaft of the pulley at the upper end of the right column;

[0019] A pulley is provided at the left end of the driven shaft of the pulley at the lower end of the right column;

[0020] The two pulleys located on the right side of the left column and the two pulleys located on the left side of the right column are connected by a ring-shaped synchronous belt.

[0021] Among them, a geared motor is installed at the upper end of the left column below the pulley drive shaft;

[0022] A sprocket is installed on the power output shaft of the geared motor;

[0023] The sprocket on the geared motor is connected to the sprocket on the pulley drive shaft by a ring chain;

[0024] The two ring-shaped synchronous belts are connected to the left and right ends of the door, respectively.

[0025] As can be seen from the technical solution provided by the present invention above, compared with the prior art, the present invention provides a fast-opening and closing door that can be widely used in various occasions such as airport security checks, industrial plants, logistics channels, and cold chain workshops. Its design is scientific, its structure is reasonable, it opens and closes quickly, it has high stability and strong reliability, and it can effectively improve the operating efficiency of cargo or personnel channels. It is particularly suitable for high-frequency, densely populated scenarios, which is conducive to achieving fast, safe and reliable passage of personnel or materials and has significant practical significance.

[0026] Through practical application testing, compared with existing traditional flexible roller shutters, the fast-opening door of this invention is a new type of fast-opening door with a more compact structure and faster action response. It is a high-frequency opening and closing fast-opening door. By applying this invention, the opening and closing action is rapid and smooth, which can effectively improve the operational efficiency of the passage flow in densely populated environments. It has a significant effect on optimizing the passage flow of luggage and goods and alleviating passage pressure, which helps to improve the overall passage efficiency and equipment operation quality, and better meet the needs of enterprises.

[0027] Compared with traditional roller shutters, the fast-opening door provided by this invention has the following technical advantages:

[0028] First, since there are no guide rails or sliding accessories, it can achieve long-life, high-frequency opening / closing operations, thus extending the overall service life of the equipment.

[0029] Secondly, since there is no roller or winding / unwinding action, high-speed opening / closing can be achieved, improving work efficiency. Attached Figure Description

[0030] Figure 1a A three-dimensional structural diagram of a quick-opening and closing door provided by the present invention;

[0031] Figure 1b for Figure 1a A magnified structural diagram of part A shown;

[0032] Figure 2a This invention provides a schematic diagram of the internal structure of a quick-opening and closing door.

[0033] Figure 2b for Figure 2a An enlarged structural diagram of part B shown;

[0034] Figure 2c for Figure 2a A magnified structural diagram of part C shown;

[0035] Figure 3 A three-dimensional exploded disassembly diagram of a fast-opening door provided for this invention patent;

[0036] Figure 4 yes Figure 3 An enlarged schematic diagram of part D shown;

[0037] Figure 5 yes Figure 3 An enlarged schematic diagram of part E shown;

[0038] Figure 6 yes Figure 3 An enlarged schematic diagram of part F shown;

[0039] Figure 7 yes Figure 3 An enlarged schematic diagram of part G shown;

[0040] Figure 8 yes Figure 3 The diagram shows an enlarged three-dimensional structure of the door frame of the present invention.

[0041] Figure 9 yes Figure 3 The diagram shows an enlarged three-dimensional structure of the door of the present invention.

[0042] Figure 10 This is a schematic diagram of the structure of a quick-opening and closing door provided by the present invention when applied to a typical working scenario of a double-door interlocking system;

[0043] In the diagram, 1-1, the door body;

[0044] 2-1. Door frame; 2-2. Right side post; 2-4. Left side post; 2-3. Horizontal beam; 2-5. Baseboard;

[0045] 2-6. Bearing housing mounting plate; 2-7. Motor connecting plate; 2-8. First lower guard; 2-9. Third lower guard; 2-10. Second lower guard.

[0046] 2-11, Lower fourth guard; 2-12, Upper guard; 2-13, Sprocket guard; 2-14, Middle guard; 2-15, Mounting plate;

[0047] 3-1. Synchronous belt (e.g., belt); 3-2. Chain; 3-3. Sprocket; 3-4. Gear motor; 3-5. Bearing mounting base;

[0048] 3-6. Pulley spacer; 3-7. Pulley drive shaft; 3-8. Key; 3-9. Pulley; 3-10. Coupling spacer;

[0049] 3-11. Coupling; 3-12. Pulley drive shaft; 3-13. Pulley driven shaft. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] See Figures 1a to 1b , Figures 2a to 2c , Figures 3 to 9 The present invention provides a quick-opening and closing door, including a door frame assembly;

[0052] The door frame assembly is equipped with a curtain slat drive assembly;

[0053] The slat drive assembly is connected to the slat transmission assembly and is used to drive the slat transmission assembly to move vertically.

[0054] The curtain drive assembly is equipped with a door body;

[0055] The door consists of multiple slats;

[0056] The slat drive assembly includes two parallel synchronous belts, and multiple slats are mounted on the two synchronous belts;

[0057] The drive shaft in the curtain drive assembly is used to synchronously drive the two synchronous belts to rotate, thereby realizing the vertical opening and closing of the door.

[0058] In this invention, specifically, the door frame assembly includes vertically distributed door frames 2-1;

[0059] The left side post 2-4 and the right side post 2-2 are respectively provided on the left and right sides of the door frame 2-1;

[0060] A curtain slat drive assembly is provided on the door frame assembly.

[0061] In this invention, specifically, the slat drive assembly includes a pulley drive shaft 3-12, a pulley driven shaft 3-13, and a pulley drive shaft 3-7, as well as a sprocket 3-3, a pulley 3-9, and a reduction motor 3-4;

[0062] At the top and bottom ends of the left column 2-4 in the door frame assembly, a pulley drive shaft 3-12 and a pulley driven shaft 3-13 are respectively provided horizontally through and pivotally (i.e. rotatably connected).

[0063] At the top and bottom ends of the right column 2-2 in the door frame assembly, a pulley drive shaft 3-7 and a pulley driven shaft 3-13 are respectively horizontally connected and pivotally (i.e. rotatably) through the column.

[0064] Among them, the pulley drive shaft 3-12 on the left column 2-4 is linked to the pulley drive shaft 3-7 on the right column 2-2 through a transversely distributed coupling 3-11;

[0065] Among them, the left and right ends of the pulley drive shaft 3-12 at the upper end of the left column 2-4 are respectively equipped with sprocket 3-3 and pulley 3-9;

[0066] At the left and right ends of the pulley driven shaft 3-13 at the lower end of the left column 2-4, there are sprockets 3-3 and pulleys 3-9 respectively;

[0067] A pulley 3-9 is provided on the left end of the pulley drive shaft 3-7 at the upper end of the right column 2-2;

[0068] A pulley 3-9 is provided at the left end of the driven shaft 3-13 of the pulley at the lower end of the right column 2-2;

[0069] The two pulleys 3-9 located to the right of the left column 2-4 and the two pulleys 3-9 located to the left of the right column 2-2 are connected by a ring-shaped synchronous belt 3-1.

[0070] Among them, a geared motor 3-4 is installed at the upper end of the left column 2-4 below the pulley drive shaft 3-12;

[0071] A sprocket 3-3 is installed on the power output shaft of the geared motor 3-4;

[0072] The sprocket 3- on the geared motor 3-4 is linked to the sprocket 3-3 on the pulley drive shaft 3-12 via a ring chain 3-2;

[0073] Among them, the two annular synchronous belts 3-1 are connected to the left and right ends of the door body 1-1 respectively.

[0074] It should be noted that this invention can be used as a rigid roller shutter door for airport security checkpoints, or in other scenarios requiring rapid response.

[0075] In this invention, specifically, the material of the curtain slats in the door body 1-1 includes any one of aluminum alloy, stainless steel, color steel plate or inorganic fabric.

[0076] In this invention, specifically, the door body 1-1 is a rigid door.

[0077] In this invention, specifically, the door body 1-1 includes multiple rigid profiles arranged vertically and distributed laterally;

[0078] Any two adjacent rigid profiles are spliced ​​together.

[0079] In practice, the rigid profile is an aluminum alloy profile.

[0080] It should be noted that door 1-1 is a roller shutter door, which is constructed from multiple rigid profiles to enable high-frequency, rapid opening and closing operations. Of course, the appropriate installation method and sensor control components should be selected based on the actual application scenario and usage requirements.

[0081] It should be noted that, for the present invention, the structural design of the door body 1-1 is as follows: by fixing a single aluminum alloy profile in the vertical direction to the synchronous belt 3-1 and connecting it with the synchronous belts 3-1 on both sides, the overall structure of the profile rises and falls synchronously with the synchronous belt, thereby realizing the rapid opening and closing of the roller shutter door.

[0082] In this invention, specifically, the synchronous belt 3-1 and the door body 1-1 are fixedly connected by screws;

[0083] It should be noted that, in this invention, after the geared motor (specifically the geared servo motor) 3-4 starts, the door body 1-1 is pulled upward by the synchronous belt 3-1.

[0084] In this invention, specifically, a base plate 2-5 is provided at the bottom of the door frame 2-1;

[0085] The base plates 2-5 are fixed to the ground with bolts.

[0086] It should be noted that the door frame 2-1 is welded from standard profiles and has screw holes and round holes for mounting related components, serving as the main frame of this device.

[0087] In this invention, for the left column 2-4 and the right column 2-2, a bearing seat mounting hole is provided horizontally through the upper and lower ends of the left column 2-4 and the right column 2-2 respectively;

[0088] Each bearing housing mounting hole has a bearing mounting seat 3-5 at each end;

[0089] In specific implementation, for the left column 2-4, the inner cavity of the bearing mounting seat 3-5 at its upper and lower ends is provided with a pulley drive shaft 3-12 and a pulley driven shaft 3-13 respectively.

[0090] For the right column 2-2, the inner cavity of the bearing mounting seat 3-5 at its upper and lower ends is provided with a pulley drive shaft 3-7 and a pulley driven shaft 3-13 respectively.

[0091] In specific implementation, for the left column 2-4 and the right column 2-2, each pulley 3-9 is provided with a pulley spacer 3-6 between it and the adjacent bearing seat mounting base 3-5;

[0092] The pulley spacer 3-6 is in contact with the inner side of the pulley 3-9;

[0093] The pulley spacer 3-6 is connected to the bearing housing mounting base 3-5;

[0094] In this invention, specifically, for each pulley 3-9, the inner side of the pulley 3-9 engages and overlaps with the inner side of the synchronous belt 3-1;

[0095] In this invention, specifically, the sprocket 3-3 on the pulley drive shaft 3-12 is in contact with its adjacent bearing mounting seat 3-5.

[0096] In this invention, specifically, for the pulley 3-9 on the pulley drive shaft 3-12 on the left column 2-4 and the pulley 3-9 on the pulley drive shaft 3-7 on the right column 2-2, a coupling sleeve 3-10 is respectively provided on the opposite side (i.e., the inner direction) of the two.

[0097] The two ends of coupling 3-11 are set on the outer side of the two coupling spacers 3-10;

[0098] It should be noted that the two sides of the coupling 3-11 are connected to the coupling spacer 3-10. The coupling spacer 3-10 plays a connecting and transitioning role between the pulley 3-3 and the coupling 3-11, and has a certain function of buffering and absorbing vibration.

[0099] In practice, bearing seat fixing plates 2-6 are respectively installed on the outer walls of the left and right sides of the left column 2-2;

[0100] The bearing housing fixing plate 2-6 is fixedly connected to the adjacent bearing mounting base 3-5 by bolts.

[0101] In this invention, specifically, the pulley 3-9 on the pulley driven shaft 3-13 at the lower end of the left column 2-4 and the pulley 3-9 on the pulley driven shaft 3-13 at the lower end of the right column 2-2 are respectively provided with a coupling sleeve 3-10 on their opposite sides.

[0102] In this invention, specifically, the inner cavity of the sprocket 3-3 is connected to the power output shaft of the reduction motor 3-4;

[0103] A motor connection plate 2-7 is provided on the upper left side of the left column 2-12;

[0104] The motor connecting plate 2-7 is located below the pulley drive shaft 3-12;

[0105] The motor connection plate 2-7 is equipped with a geared motor 3-4.

[0106] In this invention, specifically, three crossbeams 2-3 are welded to the opposite side of the left column 2-4 and the right column 2-2;

[0107] In this invention, specifically, a sprocket guard 2-13 and an upper guard 2-12 are respectively provided on the upper part of the left column 2-4 and the upper part of the right column 2-2;

[0108] An intermediate protective cover 2-14 is installed between the upper part of the left column 2-4 and the upper part of the right column 2-2.

[0109] In practice, multiple (e.g., three) mounting plates 2-15 are respectively installed on the front and rear sides of the upper part of the left column 2-4 and the right column 2-2;

[0110] On the upper part of the opposite side of the left column 2-4 and the right column 2-2, there is also a mounting plate 2-15 (for connecting the protective cover);

[0111] The sprocket guard 2-13 is connected to the left column 2-4 via the mounting plate 2-15;

[0112] The upper protective cover 2-12 is connected to the right column 2-2 via the mounting plate 2-15;

[0113] The two ends of the middle protective cover 2-14 are connected to the side column 2-4 and the right side column 2-2 through the mounting plate 2-15.

[0114] Furthermore, the sprocket guard 2-13 includes a first lower guard 2-8 and a third lower guard 2-9;

[0115] The first lower protective cover 2-8 and the third lower protective cover 2-9 are spliced ​​together and fixed to the left column 2-4 by the mounting plate 2-15;

[0116] Furthermore, the upper protective cover 2-12 includes a second lower protective cover 2-10 and a fourth lower protective cover 2-11;

[0117] The second lower cover 2-10 and the fourth lower cover 2-11 are spliced ​​together and fixed to the right column 2-2 by the mounting plate 2-15.

[0118] In a specific implementation of this invention, the transmission mechanism includes a synchronous belt 3-1, a chain 3-2, a sprocket 3-3, a geared motor 3-4, a bearing mounting seat 3-5, a pulley spacer 3-6, a pulley drive shaft 3-7, a key 3-8, a pulley 3-9, a coupling spacer 3-10, a coupling 3-11, a pulley drive shaft 3-12, and a pulley driven shaft 3-13.

[0119] In practice, the inner sides of the four pulleys 3-9 are respectively connected to a key 3-8 set on the outer side of a pulley drive shaft 3-12, two pulley driven shafts 3-13, and a pulley drive shaft 3-7.

[0120] In practice, the pulley drive shaft 3-2 is made of high-quality alloy steel. The surface is heat-treated to increase its hardness and strength and improve its service life. It has a surface for installation with other parts and is installed in the inner ring of the bearing mounting seat 3-5 by means of transition fit and is positioned by shaft key.

[0121] In specific implementation, for the pulley drive shaft 3-2, a coupling spacer 3-10 is installed on the right end of the pulley drive shaft 3-2 and abuts against the coupling 3-11 (i.e., they are in tight contact).

[0122] For the pulleys 3-9 at both ends of the pulley drive shaft 3-2, one pulley 3-9 is fitted onto the transverse outer wall of the pulley drive shaft 3-12 and is located in front of the adjacent pulley spacer 3-6; the other pulley 3-9 is in contact with the side of the adjacent coupling spacer 3-10 to achieve positioning.

[0123] Furthermore, pulley 3-9 is installed between pulley spacer 3-6 and coupling spacer 3-10 using an interference fit.

[0124] It should be noted that the coupling 3-11 is a commercially available product, characterized by its strong versatility, stable transmission, compact structure, and convenient installation.

[0125] In this invention, specifically, the inner cavities of the coupling spacer 3-10 and the coupling 3-11 are in clearance fit.

[0126] The pulley drive shaft 3-12 and the bearing mounting seat 3-5 are transition fit;

[0127] It should be noted that the bearing mounting base is a commercially available standard product, featuring simple installation, convenient maintenance, strong alignment, adaptability to large errors, and improved operational stability.

[0128] In practice, the outer cylindrical surface of the bearing mounting seat 3-5 and the end flange on one side of the bearing mounting seat 3-5 are fixed to the left column 2-12 of the door frame 2-1 by bolts. The other side of the bearing mounting seat 3-5 is connected to the pulley 3-9. A pulley spacer 3-6 is provided between the bearing mounting seat 3-5 and the pulley 3-9. The pulley spacer 3-6 serves as a transition fit.

[0129] Based on the rapid door opening and closing mechanism provided by the present invention, see [link / reference]. Figure 10 As shown, the present invention also provides an application for quick door opening and closing, which is typically used in a double-door interlocking system; of course, it can also be applied to other working scenarios according to customer needs.

[0130] See Figure 10 As shown, the double-door interlocking system includes two fast-opening doors, spaced apart front and back, as described above.

[0131] In practice, there are two fast-opening doors, including a first fast-opening door 1000 and a second fast-opening door 2000.

[0132] The first fast-opening door 1000 is located in front of the second fast-opening door 2000;

[0133] Security inspection equipment (e.g., X-ray security inspection machine, figure omitted) is installed between the first fast-opening door 1000 and the second fast-opening door 2000;

[0134] The first quick-opening door 1000 and the second quick-opening door 2000 cannot be in the open state at the same time.

[0135] It should be noted that, in this invention, the first fast-opening door 1000 is door A, and the second fast-opening door 2000 is door B. The double-door interlocking system is also known as the A / B door system. Goods pass through the A / B door system (also known as the double-door interlocking system). Usually, there is an X-ray security inspection machine between door A and door B. In order to increase the throughput of goods, door A and door B need to open / close quickly and maintain sufficient stability and lifespan under high-frequency application.

[0136] The A / B door system (also known as a dual-door interlocking system) provided by this invention is a security access control technology solution that controls the opening and closing states of two doors (door A and door B) through a mechanical or electronic interlocking mechanism. Its core objective is to prevent security risks such as tailgating, prison breaks, and unauthorized entry. The following analysis will focus on its design principles, control functions, and application scenarios:

[0137] The core function of the A / B door system (also known as a double-door interlocking system) provided by this invention is the interlocking mechanism. The basic interlocking principle includes:

[0138] First, there is mutual exclusion: Door A and Door B cannot be opened simultaneously under any normal operating conditions. When Door A is open, Door B is automatically locked; conversely, when Door B is open, Door A is locked.

[0139] Second, regional isolation: a closed inspection area (buffer zone) is formed between the two doors. Personnel or vehicles must enter this area first, and door B can only be opened after door A is closed, ensuring physical isolation between the inner and outer spaces.

[0140] To ensure mandatory sequential passage, the passage flow of the A / B door system (also known as a double-door interlocking system) of this invention is as follows: open door A → enter the inspection area → close door A → security check → open door B → enter the core area. When leaving in the opposite direction, the flow is symmetrical (i.e., reversed), thereby preventing personnel from lingering or sneaking in backwards.

[0141] Compared with the prior art, the quick-opening door provided by the present invention has the following beneficial effects:

[0142] 1. The door frame structure of this invention is constructed entirely by welding, offering advantages such as structural stability, high strength, and ease of processing and assembly. The side columns of the door frame serve as load-bearing structures for installing drive and guide components. The entire frame exhibits high rigidity and excellent resistance to deformation during operation, making it suitable for long-term operation in high-frequency opening and closing scenarios.

[0143] 2. The drive transmission assembly designed in this invention: A bearing mounting seat is provided inside the left column of the door frame. The bearing mounting seat supports the pulley drive shaft, ensuring that the drive shaft still has good stability and low friction characteristics when rotating at high speed. In addition, the pulley drive shaft is connected to a sprocket, and the sprocket meshes with a roller chain (i.e., a chain) to transmit power from the geared motor to the synchronous belt used in the roller shutter. The roller chain drive has the characteristics of smooth transmission, low noise, and good shock absorption.

[0144] In addition, the center hole of the sprocket is connected to the drive shaft of the geared motor by a key, ensuring that there will be no slippage or relative rotation during transmission. The chain structure has the advantages of large torque transmission, strong load-bearing capacity and high transmission reliability.

[0145] 3. The coupling connection structure adopted in this invention: the pulley drive shaft is connected to the coupling through the coupling spacer. The coupling assembly is provided with a coupling bushing, which can effectively compensate for installation errors and slight coaxiality deviations, prevent excessive axial load on the bearings or reducers during long-term operation, thereby improving the service life of the whole machine.

[0146] 4. The geared motor assembly of this invention: A high-frequency start-stop type dedicated geared servo motor is selected, which has stable output speed, high torque, and fast response. The geared motor is fixed to the side of the left column via a mounting plate, facilitating installation and maintenance. The controller signal input terminal of the geared motor can be connected to an external main control system (e.g., an industrial control computer). The main control system sends control signals to control the start-stop, rotation direction (forward or reverse), and running time of the geared motor, thereby controlling the direction and distance of movement of the synchronous belt driven by the geared motor. Ultimately, this achieves precise start-stop and position control, ensuring operational safety.

[0147] In summary, the quick-opening door of the present invention can be driven by a geared motor to drive a pulley drive shaft, which in turn transmits the power to a coupling, thereby driving the door body on a synchronous belt to achieve rapid lifting and lowering.

[0148] It should be noted that after the geared motor starts, the door body is pulled upward by the synchronous belt. During the sliding process, it runs along the synchronous belts on both sides. The entire door body moves in a "parallel lifting" manner, without winding, and the movement trajectory is shorter, straighter, and faster.

[0149] After testing, the main parameters of the device of the present invention are: the lifting stroke of the roller shutter door is 1800mm; the maximum lifting speed is 130m / min.

[0150] Therefore, this invention, through optimized design of the drive structure, bearing support, and coupling compensation device, achieves rapid start-stop, stable transmission, and high strength and durability of the fast-opening door in high-frequency opening and closing environments. It is suitable for applications requiring efficient separation and frequent opening and closing, such as airport security checks, industrial plants, logistics channels, and cold chain workshops.

[0151] In terms of specific implementation, the door body (i.e., door body 1-1) can be modularly configured in terms of width, height, roller shutter material and motor power according to the usage scenario, which has good scalability and application flexibility.

[0152] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A quick-opening and closing door, characterized in that, Including door frame components; The door frame assembly is equipped with a curtain slat drive assembly; The slat drive assembly is connected to the slat transmission assembly and is used to drive the slat transmission assembly to move vertically. The curtain drive assembly is equipped with a door body; The door consists of multiple slats; The slat drive assembly includes two parallel synchronous belts, and multiple slats are mounted on the two synchronous belts; The drive shaft in the curtain drive assembly is used to synchronously drive the two synchronous belts to rotate, thereby realizing the vertical opening and closing of the door.

2. The quick-opening and closing door as described in claim 1, characterized in that, The door frame assembly includes vertically distributed door frames (2-1); The door frame (2-1) is provided with a left-side column (2-4) and a right-side column (2-2) on the left and right sides respectively; A curtain slat drive assembly is provided on the door frame assembly.

3. The quick-opening and closing door as described in claim 1, characterized in that, The slat drive assembly includes a pulley drive shaft (3-12), a pulley driven shaft (3-13), and a pulley drive shaft (3-7), as well as a sprocket (3-3), a pulley (3-9), and a geared motor (3-4); At the top and bottom ends of the left column (2-4) in the door frame assembly, a pulley drive shaft (3-12) and a pulley driven shaft (3-13) are respectively horizontally connected and pivotally mounted. At the top and bottom ends of the right-side column (2-2) in the door frame assembly, a pulley drive shaft (3-7) and a pulley driven shaft (3-13) are respectively horizontally connected and pivotally mounted. Among them, the pulley drive shaft (3-12) on the left column (2-4) is connected to the pulley drive shaft (3-7) on the right column (2-2) through a transversely distributed coupling (3-11); Among them, the left and right ends of the pulley drive shaft (3-12) at the upper end of the left column (2-4) are respectively equipped with sprocket (3-3) and pulley (3-9); At the lower end of the left column (2-4), the left and right ends of the driven shaft (3-13) are respectively equipped with a sprocket (3-3) and a pulley (3-9); A pulley (3-9) is provided on the left end of the pulley drive shaft (3-7) at the upper end of the right column (2-2); A pulley (3-9) is provided at the left end of the driven shaft (3-13) of the pulley at the lower end of the right column (2-2); The two pulleys (3-9) located to the right of the left column (2-4) and the two pulleys (3-9) located to the left of the right column (2-2) are connected by a ring-shaped synchronous belt (3-1); Among them, a geared motor (3-4) is installed at the upper end of the left column (2-4) below the pulley drive shaft (3-12); A sprocket (3-3) is installed on the power output shaft of the geared motor (3-4); The sprocket (3-3) on the geared motor (3-4) is connected to the sprocket (3-3) on the pulley drive shaft (3-12) by a ring chain (3-2); Among them, the two annular synchronous belts (3-1) are connected to the left and right ends of the door body (1-1) respectively.

4. The quick-opening and closing door as described in claim 1, characterized in that, The door body (1-1) includes multiple rigid profiles arranged vertically and distributed laterally; Any two adjacent rigid profiles are spliced ​​together.

5. The quick-opening and closing door as described in claim 1, characterized in that, The material of the curtain slats in the door (1-1) includes any one of aluminum alloy, stainless steel, color steel plate or inorganic fabric; For the left column (2-4) and the right column (2-2), a bearing housing mounting hole is provided horizontally through both the upper and lower ends of the left column (2-4) and the right column (2-2); Each bearing housing mounting hole has a bearing mounting seat (3-5) at both ends; For the left column (2-4), a pulley drive shaft (3-12) and a pulley driven shaft (3-13) are respectively transversely arranged in the inner cavity of the bearing mounting seats (3-5) at its upper and lower ends; For the right column (2-2), the inner cavity of the bearing mounting seat (3-5) at its upper and lower ends is provided with a pulley drive shaft (3-7) and a pulley driven shaft (3-13) respectively. For the left column (2-4) and the right column (2-2), a pulley spacer (3-6) is provided between each pulley (3-9) and the adjacent bearing housing mounting seat (3-5); The pulley spacer (3-6) is in contact with the inner side of the pulley (3-9); The pulley spacer (3-6) is connected to the bearing housing mounting base (3-5).

6. The quick-opening and closing door as described in claim 3, characterized in that, For the pulley (3-9) on the pulley drive shaft (3-12) on the left column (2-4) and the pulley (3-9) on the pulley drive shaft (3-7) on the right column (2-2), a coupling sleeve (3-10) is provided on the opposite side of each of them; The two ends of the coupling (3-11) are set on the outside of the two coupling spacers (3-10); Bearing seat fixing plates (2-6) are respectively installed on the outer walls of the left and right sides of the left column (2-2); The bearing housing fixing plate (2-6) is fixedly connected to the adjacent bearing mounting base (3-5) by bolts.

7. The quick-opening and closing door as described in claim 1, characterized in that, For each pulley (3-9), the pulley (3-9) engages with the inner side of the timing belt (3-1); The sprocket (3-3) on the pulley drive shaft (3-12) is in contact with its adjacent bearing mounting seat (3-5).

8. The quick-opening and closing door as described in claim 1, characterized in that, The inner cavity of the sprocket (3-3) is connected to the power output shaft of the geared motor (3-4); A motor connection plate (2-7) is provided on the upper left side of the left column (2-12); The motor connecting plate (2-7) is located below the pulley drive shaft (3-12); The motor connection plate (2-7) is equipped with a geared motor (3-4).

9. The quick-opening door as described in any one of claims 1 to 8, characterized in that, A sprocket guard (2-13) and an upper guard (2-12) are respectively installed on the upper part of the left column (2-4) and the upper part of the right column (2-2); An intermediate protective cover (2-14) is installed between the upper part of the left column (2-4) and the upper part of the right column (2-2); The sprocket guard (2-13) includes a first lower guard (2-8) and a third lower guard (2-9); The first lower guard (2-8) and the third lower guard (2-9) are spliced ​​together and fixed to the left column (2-4) by the mounting plate (2-15); The upper shield (2-12) includes a second lower shield (2-10) and a fourth lower shield (2-11); The second lower guard (2-10) and the fourth lower guard (2-11) are spliced ​​together and fixed to the right column (2-2) by the mounting plate (2-15).

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