Modular electric sliding door with electrical explosion protection function

Abstract

The present invention discloses a modular electric sliding door with electrical explosion-proof function, which includes a door frame assembly and a door leaf assembly. An upper track assembly is arranged on the lower side of the top edge of the door frame assembly, and a lower track assembly is arranged on the upper side of the bottom edge. The door leaf assembly moves back and forth between the door closing area and the door hiding area of the door frame assembly through the upper track assembly and the lower track assembly. The door leaf assembly includes a plurality of modular door leaves with a convex-shaped longitudinal section. A guiding mechanism is arranged on the top of the modular door leaf, and the guiding mechanism is in rolling connection with the upper track assembly. A cavity is arranged at the bottom of the modular door leaf, and a driving mechanism, a driven mechanism or a braking mechanism is installed in the cavity. The driving system of this modular electric sliding door has a compact layout, small occupied space, convenient replacement and is suitable for flammable and explosive operation spaces; the braking mechanism and the driving mechanism are separately arranged, which has no influence on the service life of the explosion-proof frequency conversion motor; the driving system and the braking system are built-in, and the overall structure is beautiful.

Description

Technical Field

[0001] The invention relates to the technical field of electric sliding doors, and in particular to a modular electric sliding door with an electrical explosion-proof function. Background Art

[0002] Conventional electric sliding doors are driven by installing a rack on the movable door, and then the motor drives the gear meshing with the rack to rotate, thereby driving the movable door to move. This conventional driving method is not only noisy, but also the driving mechanism is bulky, low in sensitivity, scattered in layout, occupies a large space, affects the appearance, is prone to wear during long-term use, and is difficult to replace. The invention patent with application number 201911337118.2 discloses an electric sliding door, which applies the Hall principle and uses magnetic gears and magnetic racks to replace traditional gears and racks to solve the problems of high noise and low sensitivity. However, the overall problem still exists that the layout is scattered, occupies a large space, and is difficult to replace. With the maturity of technology, electric sliding doors are more and more widely used in industrial places, especially suitable for storage-type industrial buildings with large door openings, effectively solving the problems of inconvenient installation of ground doors and difficulty in opening. However, with the diversified development of industrial industries, higher and higher requirements are placed on electric sliding doors. For example, industrial sites such as warehouses with flammable and explosive materials such as suspended dust and fibers, where electric sparks are prohibited, are not suitable for installing electric sliding doors. In addition, the drive system and transmission system of common electric sliding doors are scattered, occupying a large space and affecting the appearance.

[0003] The common braking technology for electric sliding doors is to install a drum brake at the driving wheel of the electric sliding door or to provide a set counter torque through an explosion-proof variable frequency motor for braking. The above two braking technologies have the following problems: First, the drum brake needs to be integrated with the drive device, which occupies a large space horizontally and is not conducive to door space installation; the explosion-proof variable frequency motor provides a set counter torque and needs to quickly stop the explosion-proof variable frequency motor, which seriously affects the service life of the explosion-proof variable frequency motor, and the instantaneous impact has a great damage to the transmission link. Summary of the invention

[0004] The purpose of the present invention is to provide a modular electric sliding door with electrical explosion-proof function, which solves the technical problems of scattered layout of the drive system, large space occupation, inconvenient replacement and unsuitability for flammable and explosive working spaces; solves the problem of the brake mechanism in the prior art directly acting on the rotating shaft of the explosion-proof variable frequency motor of the electric sliding door; solves the problem of the drive system and the brake system being exposed and affecting the overall aesthetics.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A modular electric sliding door with electrical explosion protection function, comprising a door frame assembly and a door leaf assembly. The door frame assembly is fixedly arranged on the main structure, and the door leaf assembly is movably installed on the door frame assembly. The door frame assembly is in the shape of a four-sided frame and is divided into a closing area and a door hiding area. An upper track assembly is arranged on the lower side of the top edge of the door frame assembly, and a lower track assembly is arranged on the upper side of the bottom edge. The door leaf assembly moves back and forth between the closing area and the door hiding area of the door frame assembly through the upper track assembly and the lower track assembly.

[0007] The door leaf assembly includes a plurality of modular door leaves with a convex cross-section. A guiding mechanism is arranged at the top of the modular door leaf, and the guiding mechanism is in rolling connection with the upper track assembly. A cavity is arranged at the bottom of the modular door leaf, and a driving mechanism, a driven mechanism, and a braking mechanism are installed in the cavity. When the door leaf assembly is in the operating state, the driving mechanism drives the driven mechanism to roll and run on the lower track assembly. When the door leaf assembly is in the braking state, the driving mechanism stops outputting driving force, and the driving mechanism and the driven mechanism continue to roll and run on the lower track assembly under the action of inertia force, and the braking assembly slides and brakes on the lower track assembly.

[0008] The driving mechanism includes a first gantry-type fixed frame, an explosion-proof power component, a chain transmission component, and a first double-rail wheel component. The first gantry-type fixed frame is fixedly connected to the cavity arranged at the bottom of the modular door leaf. The explosion-proof power component is fixedly installed on the top of the first gantry-type fixed frame. The output end of the explosion-proof power component is connected to the input end of the chain transmission component. The chain transmission component is fixedly installed on one side of the first gantry-type fixed frame. The output end of the chain transmission component is connected to the first double-rail wheel component. The first double-rail wheel component is fixedly installed in the first gantry-type fixed frame and rolls and runs on the lower track assembly.

[0009] The driven mechanism includes a second gantry-type fixed frame, a second double-rail wheel component, and an elastic component. The second gantry-type fixed frame is fixedly connected to the cavity arranged at the bottom of the modular door leaf. The second double-rail wheel component is elastically connected in the second gantry-type fixed frame through the elastic component and rolls and runs on the lower track assembly.

[0010] The braking mechanism includes a third gantry-type fixed frame, an explosion-proof servo motor, a torque detection and feedback component, a linkage pushing component, a guiding component, a braking component, and a control component. The third gantry-type fixed frame is fixedly connected to the cavity arranged at the bottom of the modular door leaf. The explosion-proof servo motor is fixedly installed on the top of the third gantry-type fixed frame. The output end of the explosion-proof servo motor is connected to the input end of the linkage pushing component through the torque detection and feedback component. The linkage pushing component penetrates through the top of the third gantry-type fixed frame, and the main body part is located inside the third gantry-type fixed frame. The output end of the linkage pushing component is connected to the braking component. The linkage pushing component drives the braking component to lift in the guiding component, so as to realize the frictional braking of the braking component on the lower track assembly.

[0011] Preferably, the upper track assembly includes a groove-shaped track, and the groove-shaped track is hoisted on the building main body by a hoisting assembly; the hoisting assembly includes a plurality of suspension rods made of square steel pipes.

[0012] Preferably, the lower track assembly includes a lower track fixing frame, two I-shaped slide rails and a splicing frame. The lower track fixing frame is embedded in the ground of the building main body. The two I-shaped slide rails are fixedly installed on the lower track fixing frame in parallel at intervals. The splicing frame is used for splicing and filling the space between adjacent two I-shaped slide rails and between the I-shaped slide rail and the ground of the building main body. The top of the splicing frame is flush with the top of the I-shaped slide rail.

[0013] Preferably, the guiding mechanism includes a roller guiding assembly and a damping guiding assembly. The roller guiding assembly includes a plurality of roller guiding units evenly arranged at the top of the modular door leaf. Each roller guiding unit consists of a roller, a cylindrical bearing, a guiding connecting shaft and a guiding fixing frame. The guiding fixing frame is fixedly installed at the top of the modular door leaf. One end of the guiding connecting shaft is fixed to the top of the guiding fixing frame, and the other end is fixed inside the modular door leaf. The roller is rotatably connected to the guiding connecting shaft through the cylindrical bearing and is located inside the guiding fixing frame. The roller protrudes from both sides of the bottom cavity of the guiding fixing frame and rolls in the groove-shaped track. The damping guiding assembly includes a plurality of damping guiding units. Each damping guiding unit consists of a damping fixing frame, a damper and a guiding wheel. The damping fixing frames are evenly installed on one side of the bottom of the groove-shaped track. The guiding wheels are elastically installed in the damping fixing frames through dampers, and the guiding wheels form a rolling fit with the top of the modular door leaf.

[0014] Preferably, the explosion-proof power assembly includes an explosion-proof variable-frequency motor, an explosion-proof brake and a reducer. The output end of the explosion-proof variable-frequency motor is connected to one end of the explosion-proof brake, the other end of the explosion-proof brake is connected to the input end of the reducer, and the output end of the reducer is connected with an electromagnetic clutch. The power is transmitted to the chain drive assembly by the electromagnetic clutch. The chain drive assembly includes a large sprocket, a small sprocket, a tensioning wheel and a chain. The large sprocket is rotatably installed on the outer side of the top of the first gantry fixing frame. The electromagnetic clutch is axially connected to the large sprocket. The small sprocket is rotatably installed on the outer side of the bottom of the first gantry fixing frame. The small sprocket is meshed and driven with the large sprocket through the chain. The tensioning wheel is adjustably installed on the outer side of the middle part of the first gantry fixing frame and abuts against the outer side of the chain. The first double-track wheel assembly includes a transmission shaft and two running wheels. One end of the transmission shaft is axially connected to the small sprocket, and the other end is rotatably installed on the first gantry fixing frame. The two running wheels are arranged at intervals and axially installed on the transmission shaft.

[0015] Preferably, the elastic component includes a composite disc spring and a lead screw unit. The lead screw unit includes a lead screw shaft. One end of the lead screw shaft is rotatably installed at the top of the second gantry fixed frame, and the other end is located in the cavity at the bottom of the second gantry fixed frame. A handwheel is installed at the top of the lead screw shaft. The second double-track wheel assembly includes a running wheel mounting frame and two running wheels. The running wheel mounting frame is fixedly installed on the second gantry fixed frame through a linear bearing and is movably connected to the bottom end of the lead screw shaft. The composite disc spring is sleeved on the lead screw shaft section between the second gantry fixed frame and the running wheel mounting frame.

[0016] Preferably, the linkage pushing component includes a first commutator, a second commutator and two groups of lead screws. The first commutator is fixedly installed at the central position at the top of the third gantry fixed frame. The second commutator is fixedly installed at the top of the cavity of the third gantry fixed frame and is connected to the first commutator. The input end of the first commutator is connected to the output end of an explosion-proof servo motor horizontally installed on the third gantry fixed frame through a torque detection feedback component to form a vertical power output. The vertical power output is input into the second commutator, and the second commutator forms two horizontal power output ends. Both horizontal power output ends are connected to the brake component through lead screws in a liftable manner. The two ends at the top of the brake component are sleeved on the guiding component and are connected to the bottom of the modular door leaf in a liftable manner. The bottom of the brake component straddles the lower track component.

[0017] Preferably, one side of the modular door leaf is provided with a composite fireproof board and coated with a fireproof coating. Sealing strips are filled in the gaps between the modular door leaf and the upper track component, the lower track component and the building main body. A fireproof brush is arranged at the gap between the fire-facing side of the modular door leaf and the door leaf component. A fireproof expansion rubber strip is filled between the sealing strip and the fireproof brush, and a fireproof brush is arranged at the front end of the sealing strip.

[0018] Preferably, when the door leaf component is of a double-door structure, a plurality of modular door leaves are assembled into a left door leaf and a right door leaf. A braking mechanism is installed in the cavity at the bottom of the modular door leaf assembled at both ends of the left door leaf or the right door leaf. A driving mechanism is installed in the cavity at the bottom of the modular door leaf spaced one or two modular door leaves from the modular door leaf where the braking mechanism is located. A safety door is arranged on one of the modular door leaves, and a driven mechanism is installed in the cavity at the bottom of the modular door leaves at other positions. When closing the door, the two modular door leaves at the docking part of the left door leaf and the right door leaf form an insertion docking structure.

[0019] Preferably, a retracting device is slidably installed on the upper track component in the hidden door area, and an emergency winch is arranged at the bottom of the hidden door area.

[0020] In the present invention, the door leaf component is assembled by a plurality of modular door leaves. The modularization solves the problems of difficult transportation and inconvenient installation. The modular door leaf can be internally provided with a driving mechanism, a driven mechanism and a braking mechanism, and is convenient for disassembly and assembly, solving the problem of difficult maintenance. The overall structure is beautiful.

[0021] The braking mechanism is fixedly installed in the lower cavity of the modular door leaf. The linkage pushing component drives the braking component to lift in the guiding component, so as to realize the frictional braking of the braking component on the lower track component. The application of this braking mechanism is different from the traditional structure that directly applies braking to the driving system of the electric sliding door, and does not affect the service life of the driving system of the electric sliding door; a torque sensor is used to detect and obtain the torque in the braking power transmission path, and further realize the purpose of detecting the frictional force between the braking component and the lower track component, so as to control the lifting of the liftable component.

[0022] The driving mechanism is overall arranged based on the chain drive mechanism, with a compact structure and small occupied space, and is suitable for the driving system layout of large electric sliding doors; an explosion-proof brake is arranged in the explosion-proof power component, and the explosion-proof brake is connected between the explosion-proof variable-frequency motor and the reducer, which can prevent the explosion-proof variable-frequency motor from generating electric sparks and thus affecting the environment, with high safety performance; an electromagnetic clutch is arranged between the explosion-proof power component and the chain drive component. When powered on, the electromagnetic clutch is in the engaged state, and the explosion-proof power component drives the chain drive component to work through the electromagnetic clutch. When powered off, the electromagnetic clutch is in the disengaged state, and the explosion-proof power component and the chain drive component are in the separated state, which can ensure that the electric sliding door can be easily pushed manually in the power-off state. The tensioning wheel is adjustably installed on the first gantry-type fixing frame, and the fixing position of the tensioning wheel can be adjusted according to actual needs to ensure that the chain is always in a tensioned state, avoiding poor meshing between the large sprocket, small sprocket and the chain and vibration of the chain and other adverse phenomena.

[0023] The elastic component arranged in the driven mechanism can ensure the close fit between the second double-rail wheel component and the lower track component, so that the modular door leaf has enough support points to ensure the smooth and stable operation of the modular electric sliding door.

[0024] The roller guiding component in the guiding mechanism can not only limit the top of the modular door leaf, but also ensure the rolling operation of the modular door leaf in the upper track component, reducing the frictional resistance and being able to resist the wind resistance at the top of the modular door leaf; the damping guiding component in the guiding mechanism plays a role in limiting the top side of the modular door leaf, and at the same time can eliminate the vibration generated during the operation of the modular door leaf to ensure the smooth operation of the modular electric sliding door during the operation process.

[0025] A splicing frame is arranged in the lower track component, and adjacent two I-shaped sliding rails and between the I-shaped sliding rail and the building main body ground are spliced and leveled through the splicing frame. The top of the splicing frame is flush with the top of the I-shaped sliding rail, which can ensure the smooth passage of equipment transportation without bumps. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the partial structure of the door leaf assembly of the present invention;

[0028] Figure 3 This is a schematic diagram of the A-A cross-section in the door leaf assembly of the present invention;

[0029] Figure 4 This is a schematic diagram of the B-B cross-section in the door leaf assembly of the present invention;

[0030] Figure 5 This is a schematic diagram of the C-C cross-section in the door leaf assembly of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the driving mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the driven mechanism of the present invention;

[0033] Figure 8 This is a schematic diagram of the structure of the braking mechanism of the present invention;

[0034] Figure 9 This is a schematic diagram of the D-D cross-section in the overall structure of the present invention;

[0035] Figure 10 This is a partial enlarged schematic diagram of area I in the D-D cross-section of the present invention;

[0036] Figure 11 This is a schematic diagram of the partial structure of the roller guiding unit of the present invention;

[0037] Figure 12 This is a schematic diagram of another part of the roller guiding unit of the present invention;

[0038] Figure 13 This is a partial enlarged schematic diagram of area II in the D-D cross-section of the present invention;

[0039] Figure 14 This is a schematic diagram of the structure at the docking part of the left door leaf and the right door leaf of the present invention.

[0040] In the figure: 1, door frame assembly; 2, door leaf assembly; 3, driving mechanism; 4, driven mechanism; 5, braking mechanism; 6, guiding mechanism; 7, electromagnetic clutch; 8, hoisting assembly; 10, upper track assembly; 11, lower track assembly; 13, recessed door area; 20, modular door leaf; 21, safety door; 30, first gantry fixed frame; 31, explosion-proof power assembly; 32, chain drive assembly; 33, first double-track wheel assembly; 40, second gantry fixed frame; 41, second double-track wheel assembly; 42, elastic assembly; 50, third gantry fixed frame; 51, explosion-proof servo motor; 52, torque detection and feedback assembly; 53, linkage pushing assembly; 54, guiding assembly; 55, braking assembly; 56, control assembly; 60, roller guiding unit; 61, damping guiding unit; 80, suspension rod; 100, groove-shaped track; 110, lower track fixing frame; 111, I-shaped sliding rail; 112, splicing frame; 310, explosion-proof variable-frequency motor; 311, explosion-proof brake; 312, reducer; 320, large sprocket; 321, small sprocket; 322, tensioning wheel; 323, chain; 330, transmission shaft; 410, running wheel mounting frame; 420, composite disc spring; 421, lead screw unit; 530, first commutator; 531, second commutator; 532, lead screw; 600, roller; 601, cylindrical bearing; 602, guiding connecting shaft; 603, guiding fixing frame; 610, damping fixing frame; 611, damper; 612, guiding wheel. Detailed implementation manners

[0041] The present invention will be further described below in conjunction with the accompanying drawings:

[0042] As Figure 1 shown, a modular electric sliding door with electrical explosion-proof function includes a door frame assembly 1 and a door leaf assembly 2. The door frame assembly 1 is fixedly arranged on the main structure, and the door leaf assembly 2 is movably installed on the door frame assembly 1. The door frame assembly 1 is in a quadrilateral frame shape and is divided into a closing door area and a recessed door area 13. An upper track assembly 10 is arranged on the lower side of the top edge of the door frame assembly 1, and a lower track assembly 11 is arranged on the upper side of the bottom edge. The door leaf assembly 2 moves back and forth between the closing door area and the recessed door area 13 of the door frame assembly 1 through the upper track assembly 10 and the lower track assembly 11.

[0043] As Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, the door leaf assembly 2 includes a plurality of modular door leaves 20 with a convex cross-section. Modularity solves the problems of difficult transportation and inconvenient installation. A guiding mechanism 6 is provided at the top of the modular door leaf 20, and the guiding mechanism 6 is in rolling connection with the upper track assembly 10; a cavity is provided at the bottom of the modular door leaf 20, and a driving mechanism 3, a driven mechanism 4 and a braking mechanism 5 can be installed in the cavity, and the overall structure is beautiful. When the door leaf assembly 2 is in the running state, the driving mechanism 3 drives the driven mechanism to roll on the lower track assembly 11; when the door leaf assembly 2 is in the braking state, the driving mechanism 3 stops the output of the driving force, and the driving mechanism 3 and the driven mechanism 4 continue to roll on the lower track assembly 11 under the action of inertia force, and the braking mechanism 5 slides and brakes on the lower track assembly 11.

[0044] As Figure 6 shown, the driving mechanism 3 includes a first gantry fixed frame 30, an explosion-proof power component 31, a chain drive component 32 and a first double-rail wheel component 33. The first gantry fixed frame 30 is fixedly connected to the cavity provided at the bottom of the modular door leaf 20. The explosion-proof power component 31 is fixedly installed on the top of the first gantry fixed frame 30. The output end of the explosion-proof power component 31 is connected to the input end of the chain drive component 32 through an electromagnetic clutch 7. When powered on, the electromagnetic clutch 7 is in the engaged state, and the explosion-proof power component 31 drives the chain drive component 32 to work through the electromagnetic clutch 7. When powered off, the electromagnetic clutch 7 is in the disengaged state, and the explosion-proof power component 31 and the chain drive component 32 are in the disengaged state, which can ensure that the modular door leaf 20 can be easily pushed manually in the power-off state. The chain drive component 32 is fixedly installed on one side of the first gantry fixed frame 30, and the output end of the chain drive component 32 is connected to the first double-rail wheel component 33. The first double-rail wheel component 33 is fixedly installed in the bottom cavity of the first gantry fixed frame 30 and rolls on the lower track assembly 11.

[0045] The explosion-proof power component 31 includes an explosion-proof variable-frequency motor 310, an explosion-proof brake 311 and a speed reducer 312. The output end of the explosion-proof variable-frequency motor 310 is connected to one end of the explosion-proof brake 311, and the other end of the explosion-proof brake 311 is connected to the input end of the speed reducer 312. The explosion-proof brake 311 can prevent the explosion-proof variable-frequency motor from generating electric sparks and thus affecting the environment, improving the safety performance. The output end of the speed reducer 312 is connected to the electromagnetic clutch 7, and the power is transmitted to the chain drive component 32 by the electromagnetic clutch 7;

[0046] The chain drive assembly 32 includes a large sprocket 320, a small sprocket 321, a tensioning wheel 322 and a chain 323. The large sprocket 320 is rotatably mounted on the outer side of the top of the first gantry fixing frame 30 through a bearing mounting seat. The electromagnetic clutch 7 is axially connected to the large sprocket 320. The small sprocket 321 is rotatably mounted on the outer side of the bottom of the first gantry fixing frame 30. In this example, for the sake of compact structure, the small sprocket 321 is directly mounted on the outer hub at one end of the electromagnetic clutch 7. The small sprocket 321 is in meshing transmission with the large sprocket 320 through the chain 323. The tensioning wheel 322 is adjustably mounted on the outer side of the middle part of the first gantry fixing frame 30 and abuts against the outer side of the chain 323 to ensure that the chain 323 is always in a tensioned state, avoiding poor meshing between the large sprocket 320, the small sprocket 321 and the chain 323 and poor phenomena such as vibration of the chain 323. The first double-track wheel assembly 33 includes a transmission shaft 330 and two running wheels. One end of the transmission shaft 330 is axially connected to the small sprocket 321, and the other end is rotatably mounted on the first gantry fixing frame 30. The two running wheels are arranged at intervals and axially mounted on the transmission shaft 330.

[0047] As Figure 7 shown, the driven mechanism 4 includes a second gantry fixing frame 40, a second double-track wheel assembly 41 and an elastic assembly 42. The second gantry fixing frame 40 is fixedly connected to the cavity provided at the bottom of the modular door leaf 20. The second double-track wheel assembly 41 is elastically connected in the bottom cavity of the second gantry fixing frame 40 through the elastic assembly 42 and rolls on the lower track assembly 11. The elastic assembly 42 can ensure close fitting between the second double-track wheel assembly 41 and the lower track assembly 11, so that the modular door leaf 20 has enough support points to ensure the smooth and stable operation of the modular electric sliding door.

[0048] The elastic assembly 42 includes a composite disc spring 420 and a lead screw unit 421. The lead screw unit 421 includes a lead screw shaft. One end of the lead screw shaft is rotatably mounted on the top of the second gantry fixing frame 40, and the other end is located in the bottom cavity of the second gantry fixing frame 40. A hand wheel is mounted on the top of the lead screw shaft. The second double-track wheel assembly 41 includes a running wheel mounting frame 410 and two running wheels. The running wheel mounting frame 410 is fixedly mounted on the second gantry fixing frame 40 through a linear bearing and is movably connected to the bottom end of the lead screw shaft. The composite disc spring 420 is sleeved on the lead screw shaft section between the second gantry fixing frame 40 and the running wheel mounting frame 410.

[0049] As Figure 8As shown in the figure, the braking mechanism 5 includes a third gantry-type fixing frame 50, an explosion-proof servo motor 51, a torque detection and feedback component 52, a linkage pushing component 53, a guiding component 54, a braking component 55 and a control component 56. The third gantry-type fixing frame 50 is fixedly connected to the cavity provided at the bottom of the modular door leaf 20. The explosion-proof servo motor 51 is fixedly installed on the top of the third gantry-type fixing frame 50. The output end of the explosion-proof servo motor 51 is connected to the input end of the linkage pushing component 53 through the torque detection and feedback component 52. The linkage pushing component 53 penetrates through the top of the third gantry-type fixing frame 50, and its main body part is located in the bottom cavity of the third gantry-type fixing frame 50. The output end of the linkage pushing component 53 is connected to the braking component 55. The linkage pushing component 53 drives the braking component 55 to lift in the guiding component 54, so as to realize the frictional braking of the braking component 55 on the lower track component 11.

[0050] The linkage pushing component 53 includes a first commutator 530, a second commutator 531 and two sets of lead screws 532. The first commutator 530 is fixedly installed at the central position on the top of the third gantry-type fixing frame 50. The second commutator 531 is fixedly installed on the top of the cavity of the third gantry-type fixing frame 50 and is connected to the first commutator 530. The input end of the first commutator 530 is connected to the output end of the explosion-proof servo motor 51 horizontally installed on the third gantry-type fixing frame 50 through the torque detection and feedback component 52 to form a vertical power output. The vertical power output is input into the second commutator 531, and the second commutator 531 forms two horizontal power output ends. Both horizontal power output ends are connected to the braking component 55 through the lead screws 532 in a liftable manner. The two ends of the top of the braking component 55 are sleeved on the guiding component 54 and are connected to the bottom of the modular door leaf 20 in a liftable manner. The bottom of the braking component 55 straddles the lower track component 11. The braking component 55 includes a cross beam and brake shoes. The cross beam is connected to the lower part of the lead screw 532 in a liftable manner. Brake shoes are fixedly installed at the bottom of the cross beam, and the brake shoes straddle the lower track component 11.

[0051] When in the non-working state, the brake shoes at the bottom of the braking component 55 are flush with the bottom of the modular door leaf 20 and there is a gap between them and the lower track component 11. When in the working state, the explosion-proof servo motor 51 starts to output power, so that the brake shoes at the bottom of the braking component 55 descend and extend out of the bottom of the modular door leaf 20 to frictionally brake with the lower track component 11.

[0052] A start switch is fixedly installed on one side of the third gantry-type fixed frame 50. The start switch is specifically a photoelectric switch. The photoelectric switch is adapted to the laser fence installed on the main body of the building. When the photoelectric switch detects the laser emitted by the laser fence, the control component 56 simultaneously sends a drive signal to the explosion-proof servo motor 51 and the explosion-proof variable frequency motor 310, thereby stopping the operation of the explosion-proof variable frequency motor 310 and starting the brake component 55 to start the braking mode; after the braking mode is turned on, the photoelectric switch continuously detects the laser emitted by the laser fence, and then collects the travel data of the door leaf component 2 after braking. After the door leaf component 2 moves to the designed position, the control component sends a braking signal to the explosion-proof servo motor 51 to turn off the braking mode; during this period, the torque value in the power transmission path is obtained through the torque detection feedback component 52, and the friction force generated between the brake component 55 and the lower track component 11 is monitored through the torque value, providing a working signal for the lead screw 532 to control the relative position between the brake component 55 and the lower track component 11.

[0053] like Figure 9 As shown, the upper track assembly 10 includes a grooved track 100, and the grooved track 100 is hoisted on the building body through a hoisting assembly 8; the hoisting assembly 8 includes a plurality of hoisting rods 80, and the hoisting rods 80 are made of square steel pipes.

[0054] like Figure 10 , Figure 11 and Figure 12As shown in the figure, the guiding mechanism 6 includes a roller guiding assembly and a damping guiding assembly. The roller guiding assembly in the guiding mechanism can not only limit the top of the modular door leaf 20, but also ensure that the modular door leaf 20 rolls and runs in the upper track assembly 10, reducing the frictional resistance. The damping guiding unit plays a role in limiting the top side of the modular door leaf 20, and at the same time can eliminate the vibration generated during the operation of the modular door leaf 20, ensuring the smooth operation of the modular electric sliding door. The roller guiding assembly includes a plurality of roller guiding units 60 evenly spaced on the top of the modular door leaf 20. The roller guiding unit 60 is composed of a roller 600, a cylindrical bearing 601, a guiding connecting shaft 602 and a guiding fixing frame 603. The guiding fixing frame 603 is fixedly installed on the top of the modular door leaf 20. One end of the guiding connecting shaft 602 is fixed on the top of the guiding fixing frame 603, and the other end is fixed inside the modular door leaf 20. The roller 600 is rotatably connected to the guiding connecting shaft 602 through the cylindrical bearing 601 and is located in the bottom cavity of the guiding fixing frame 603. The width of the guiding fixing frame 603 is smaller than the diameter of the roller 600. The roller 600 protrudes from both sides of the bottom cavity of the guiding fixing frame 603 and rolls in the groove-shaped track 100. The damping guiding assembly includes a plurality of damping guiding units 61 evenly spaced on one side of the bottom of the groove-shaped track 100. The damping guiding unit 61 is composed of a damping fixing frame 610, a damper 611 and a guiding wheel 612. The damping fixing frame 610 is fixedly installed on one side of the bottom of the groove-shaped track 100. The guiding wheel 612 is elastically installed in the damping fixing frame 610 through the damper 611. The guiding wheel forms a rolling fit with the top of the modular door leaf 20.

[0055] As Figure 13 shown, the lower track assembly 11 includes a lower track fixing frame 110, two I-shaped slide rails 111 and a splicing frame 112. The lower track fixing frame 110 is embedded in the ground of the building main body. The two I-shaped slide rails 111 are fixedly installed on the lower track fixing frame 110 in parallel at intervals. The space between adjacent two I-shaped slide rails 111 and the space between the I-shaped slide rail 111 and the ground of the building main body are filled and leveled by the splicing frame 112. The top of the splicing frame 112 is flush with the top of the I-shaped slide rail 111.

[0056] One side of the modular door leaf 20 is provided with a composite fireproof board and coated with a fireproof coating. Sealing strips are filled in the gaps between the modular door leaf 20 and the upper track assembly 10, the lower track assembly 11 and the building main body. A fireproof brush is arranged at the gap between the fire-facing side of the modular door leaf 20 and the door leaf assembly 2. A fireproof expansion rubber strip is filled between the sealing strip and the fireproof brush.

[0057] When the door leaf assembly 2 is of a double - door structure, multiple modular door leaves 20 are spliced into a left - hand door leaf and a right - hand door leaf. Adjacent modular door leaves 20 are anchored together by stainless steel plates. A braking mechanism 5 is installed in the bottom cavity of the modular door leaf 20 assembled at both ends of the left - hand door leaf or the right - hand door leaf. A driving mechanism 3 is installed in the bottom cavity of the modular door leaf 20 that is spaced one or two modular door leaves away from the modular door leaf 20 where the braking mechanism 5 is located. A safety door 21 is provided on one of the modular door leaves 20, and a driven mechanism 4 is installed in the bottom cavity of the modular door leaves 20 at other positions. When closing the door, referring to Figure 14 , the two modular door leaves 20 at the butt joint of the left - hand door leaf and the right - hand door leaf form an insertion - type butt - joint structure. Among them, one end of one modular door leaf 20 is a trapezoidal groove, and one end of the other modular door leaf 20 is a trapezoidal protrusion. A silicone rubber sealing strip is provided on each side of the trapezoidal groove.

[0058] A retracting device is slidably installed on the upper - track assembly 10 in the hidden - door area 13. An emergency winch is provided at the bottom of the hidden - door area 13. One end of the cable on the emergency winch is connected to both sides of the modular door leaf 20 through quick - connectors, and the sliding opening of the modular door leaf 20 is realized by the retraction and release of the cable.

[0059] The above - mentioned embodiments are only several explanations of the concept and implementation of the present invention, and do not limit it. Under the concept of the present invention, the technical solutions without substantial transformation are still within the protection scope.

Claims

1. A modular electric sliding door with electrical explosion-proof function, comprising a door frame assembly (1) and a door leaf assembly (2), wherein the door frame assembly (1) is fixedly arranged on the main structure, and the door leaf assembly (2) is movably installed on the door frame assembly (1), and is characterized in that: The door frame assembly (1) is in the shape of a four-sided frame and is divided into a door closing area and a door hiding area (13). An upper track assembly (10) is provided on the lower side of the top edge of the door frame assembly (1), and a lower track assembly (11) is provided on the upper side of the bottom edge. The door leaf assembly (2) moves back and forth between the door closing area and the door hiding area (13) of the door frame assembly (1) through the upper track assembly (10) and the lower track assembly (11). The door leaf assembly (2) includes a plurality of modular door leaves (20) with a convex cross-section. A guiding mechanism (6) is provided at the top of the modular door leaf (20), and the guiding mechanism (6) is in rolling connection with the upper track assembly (10). A cavity is provided at the bottom of the modular door leaf (20), and a driving mechanism (3), a driven mechanism (4), and a braking mechanism (5) are installed in the cavity. When the door leaf assembly (2) is in an operating state, the driving mechanism (3) drives the driven mechanism to roll on the lower track assembly (11). When the door leaf assembly (2) is in a braking state, the driving mechanism (3) stops outputting driving force, and the driving mechanism (3) and the driven mechanism (4) continue to roll on the lower track assembly (11) under the action of inertia force, and the braking mechanism (5) slides and brakes on the lower track assembly (11). The driving mechanism (3) includes a first gantry-type fixing frame (30), an explosion-proof power assembly (31), a chain transmission assembly (32), and a first double-rail wheel assembly (33). The first gantry-type fixing frame (30) is fixedly connected to the cavity provided at the bottom of the modular door leaf (20). The explosion-proof power assembly (31) is fixedly installed on the top of the first gantry-type fixing frame (30). The output end of the explosion-proof power assembly (31) is connected to the input end of the chain transmission assembly (32). The chain transmission assembly (32) is fixedly installed on one side of the first gantry-type fixing frame (30). The output end of the chain transmission assembly (32) is connected to the first double-rail wheel assembly (33). The first double-rail wheel assembly (33) is fixedly installed in the first gantry-type fixing frame (30) and rolls on the lower track assembly (11). The driven mechanism (4) includes a second gantry-type fixing frame (40), a second double-rail wheel assembly (41), and an elastic component (42). The second gantry-type fixing frame (40) is fixedly connected to the cavity provided at the bottom of the modular door leaf (20). The second double-rail wheel assembly (41) is elastically connected in the second gantry-type fixing frame (40) through the elastic component (42) and rolls on the lower track assembly (11). The braking mechanism (5) includes a third gantry-type fixing frame (50), an explosion-proof servo motor (51), a torque detection and feedback component (52), a linkage pushing component (53), a guiding component (54), a braking component (55) and a control component (56). The third gantry-type fixing frame (50) is fixedly connected to the cavity provided at the bottom of the modular door leaf (20). The explosion-proof servo motor (51) is fixedly installed at the top of the third gantry-type fixing frame (50). The output end of the explosion-proof servo motor (51) is connected to the input end of the linkage pushing component (53) through the torque detection and feedback component (52). The linkage pushing component (53) penetrates through the top of the third gantry-type fixing frame (50), and its main body part is located inside the third gantry-type fixing frame (50). The output end of the linkage pushing component (53) is connected to the braking component (55). The linkage pushing component (53) drives the braking component (55) to lift in the guiding component (54), so as to realize the frictional braking of the braking component (55) on the lower track component (11). The linkage pushing component (53) includes a first commutator (530), a second commutator (531) and two sets of lead screws (532). The first commutator (530) is fixedly installed at the central position at the top of the third gantry-type fixing frame (50). The second commutator (531) is fixedly installed at the top of the cavity of the third gantry-type fixing frame (50) and is connected to the first commutator (530). The input end of the first commutator (530) is connected to the output end of the explosion-proof servo motor (51) horizontally installed on the third gantry-type fixing frame (50) through the torque detection and feedback component (52) to form a vertical power output. The vertical power output is input into the second commutator (531), and the second commutator (531) forms two horizontal power output ends. Both horizontal power output ends are connected to the braking component (55) through the lead screws (532) in a liftable manner. The two ends at the top of the braking component (55) are sleeved on the guiding component (54) and are connected to the bottom of the modular door leaf (20) in a liftable manner. The bottom of the braking component (55) straddles the lower track component (11).

2. The modular electric sliding door with electrical explosion-proof function according to claim 1, wherein: The upper track component (10) includes a groove-type track (100). The groove-type track (100) is hoisted on the building main body through a hoisting component (8). The hoisting component (8) includes a plurality of suspension rods (80), and the suspension rods (80) are made of square steel pipes.

3. The modular electric sliding door with electrical explosion-proof function according to claim 1, characterized in that: The lower track component (11) includes a lower track fixing frame (110), two I-shaped slide rails (111) and a splicing frame (112). The lower track fixing frame (110) is embedded in the ground of the building main body. The two I-shaped slide rails (111) are fixedly installed on the lower track fixing frame (110) in parallel at intervals. The splicing frame (112) is used for splicing and filling the gap between adjacent two I-shaped slide rails (111) and between the I-shaped slide rails (111) and the ground of the building main body. The top of the splicing frame (112) is flush with the top of the I-shaped slide rails (111).

4. The modular electric sliding door with electrical explosion-proof function according to claim 2, characterized in that: The guiding mechanism (6) includes a roller guiding assembly and a damping guiding assembly. The roller guiding assembly includes a plurality of roller guiding units (60) evenly spaced on the top of the modular door leaf (20). The roller guiding unit (60) consists of a roller (600), a cylindrical bearing (601), a guiding connecting shaft (602) and a guiding fixing frame (603). The guiding fixing frame (603) is fixedly installed on the top of the modular door leaf (20). One end of the guiding connecting shaft (602) is fixed to the top of the guiding fixing frame (603), and the other end is fixed inside the modular door leaf (20). The roller (600) is rotatably connected to the guiding connecting shaft (602) through the cylindrical bearing (601) and is located inside the guiding fixing frame (603). The roller (600) protrudes from both sides of the bottom cavity of the guiding fixing frame (603) and rolls in the groove-shaped track (100). The damping guiding assembly includes a plurality of damping guiding units (61). The damping guiding unit (61) consists of a damping fixing frame (610), a damper (611) and a guiding wheel (612). The damping fixing frame (610) is evenly spaced and installed on one side of the bottom of the groove-shaped track (100). The guiding wheel (612) is elastically installed in the damping fixing frame (610) through the damper (611), and the guiding wheel (612) forms a rolling fit with the top of the modular door leaf (20).

5. The modular electric sliding door with electrical explosion protection function according to claim 1, wherein: The explosion-proof power assembly (31) includes an explosion-proof variable-frequency motor (310), an explosion-proof brake (311) and a speed reducer (312). The output end of the explosion-proof variable-frequency motor (310) is connected to one end of the explosion-proof brake (311). The other end of the explosion-proof brake (311) is connected to the input end of the speed reducer (312). The output end of the speed reducer (312) is connected with an electromagnetic clutch (7), and the electromagnetic clutch (7) transmits power to the chain transmission assembly (32). The chain transmission assembly (32) includes a large sprocket (320), a small sprocket (321), a tensioning wheel (322) and a chain (323). The large sprocket (320) is rotatably installed on the outer side of the top of the first gantry-type fixing frame (30). The electromagnetic clutch (7) is axially connected to the large sprocket (320). The small sprocket (321) is rotatably installed on the outer side of the bottom of the first gantry-type fixing frame (30). The small sprocket (321) is meshed and driven with the large sprocket (320) through the chain (323). The tensioning wheel (322) is adjustably installed on the outer side of the middle part of the first gantry-type fixing frame (30) and abuts against the outer side of the chain (323). The first double-track wheel assembly (33) includes a transmission shaft (330) and two running wheels. One end of the transmission shaft (330) is axially connected to the small sprocket (321), and the other end is rotatably installed on the first gantry-type fixing frame (30). The two running wheels are spaced apart and axially installed on the transmission shaft (330).

6. The modular electric sliding door with electrical explosion-proof function according to claim 1, characterized in that: The elastic component (42) includes a composite disc spring (420) and a lead screw unit (421). The lead screw unit (421) includes a lead screw shaft. One end of the lead screw shaft is rotatably installed at the top of the second gantry fixing frame (40), and the other end is located in the cavity at the bottom of the second gantry fixing frame (40). A hand wheel is installed at the top of the lead screw shaft. The second double-track wheel assembly (41) includes a running wheel mounting frame (410) and two running wheels. The running wheel mounting frame (410) is fixedly installed on the second gantry fixing frame (40) through linear bearings and is movably connected to the bottom end of the lead screw shaft. The composite disc spring (420) is sleeved on the lead screw shaft section between the second gantry fixing frame (40) and the running wheel mounting frame (410).

7. The modular electric sliding door with electrical explosion-proof function according to any one of claims 1 to 6, characterized in that: One side of the modular door leaf (20) is provided with a composite fireproof board and coated with a fireproof coating. Sealing strips are filled in the gaps between the modular door leaf (20) and the upper track assembly (10), the lower track assembly (11), and the building main body. A fireproof brush is arranged at the gap between the fire-facing side of the modular door leaf (20) and the door leaf assembly (2). A fireproof expansion rubber strip is filled between the sealing strip and the fireproof brush.

8. The modular electric sliding door with electrical explosion protection function according to claim 7, characterized in that: When the door leaf assembly (2) is of a double-door structure, a plurality of modular door leaves (20) are spliced into a left door leaf and a right door leaf. A braking mechanism (5) is installed in the bottom cavity of the modular door leaf (20) assembled at both ends of the left door leaf or the right door leaf. A driving mechanism (3) is installed in the bottom cavity of the modular door leaf (20) that is spaced one or two modular door leaves (20) from the modular door leaf (20) where the braking mechanism (5) is located. A safety door (21) is arranged on one of the modular door leaves (20), and a driven mechanism (4) is installed in the bottom cavities of the modular door leaves (20) at other positions. When closing the door, the two modular door leaves (20) at the docking position of the left door leaf and the right door leaf form an insertion docking structure.

9. The modular electric sliding door with electrical explosion protection function according to claim 1, characterized in that: A retracting device is slidably installed on the upper track assembly (10) of the hidden door area (13), and an emergency winch is arranged at the bottom of the hidden door area (13).

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