Lifting device for multiple fireproof curtains

Abstract

The utility model relates to the field of fireproof curtain lifting equipment, and discloses a multi-piece fireproof curtain lifting device which comprises two bases and a top plate, the two bases are distributed in a bilateral symmetry mode relative to the top plate, the top plate is located at the upper ends of the bases, and a motor is fixedly connected to the upper end of the base at the left end. First chain wheels, second chain wheels and third chain wheels are sequentially and rotationally connected into the two bases from front to back, one set of first chain wheels, second chain wheels and third chain wheels are rotationally connected with the bases, and the other set of first chain wheels, second chain wheels and third chain wheels are installed at the lower end of the top plate. The output shaft end of the motor is fixedly connected with the second chain wheel located on the left side of the lower end. According to the utility model, the plurality of fireproof curtains can be simultaneously controlled to carry out lifting operation, and due to the existence of the plurality of fireproof curtains, the speed of fire spreading to the auditorium along the stage can be slowed down when a fire occurs, the safety of the auditorium can be improved, and more time can be gained for rescue for rescue workers, so that the loss can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of fire curtain lifting equipment, in particular to a multi-piece fire curtain lifting device. Background Art

[0002] The fire curtain is a device that can quickly isolate the stage and the auditorium when a fire occurs on the stage, prevent the convection of stage smoke and auditorium air, and ensure that the audience can evacuate the scene quickly and safely and orderly to reduce losses.

[0003] At present, a fire curtain is driven to be raised and lowered by controlling the lifting device on the stage, and a fire curtain is used to separate the stage and the auditorium. However, in the case of a large fire, a single fire curtain is easily burned by the fire, and the fire quickly spreads to the auditorium, eventually causing heavy losses to the auditorium. Therefore, it is necessary to design a multi-fire curtain lifting device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a multi-piece fire curtain lifting device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-piece fire curtain lifting device, including a base and a top plate, the base is provided with two, which are symmetrically distributed about the top plate, and the top plate is located at the upper end of the base, and the upper end of the base located at the left end is fixedly connected to a motor, and the interiors of the two bases are rotatably connected to a first sprocket, a second sprocket and a third sprocket from front to back in sequence, and the first sprocket, the second sprocket and the third sprocket are each provided with two groups, and each group is provided with two, one group of the first sprocket, the second sprocket and the third sprocket is rotatably connected to the base, and the other group of the first sprocket, the second sprocket and the third sprocket is installed at the lower end of the top plate, the output shaft end of the motor is fixedly connected to the second sprocket located on the left side of the lower end, the lower end of the top plate is fixedly connected to a first bearing seat, a second bearing seat and a third bearing seat, the first bearing seat is rotatably connected to the first rotating rod, and the two first sprockets at the upper end are respectively fixed The two wheels are connected with the third wheel shaft through a linking mechanism, and the two wheels are connected with each other via a third chain.

[0006] Furthermore, the upper end surfaces of the two bases are provided with mounting holes.

[0007] Furthermore, the first linkage assembly includes a transmission wheel and a belt, the circumferential surfaces of the first rotating rod and the second rotating rod are fixedly connected with the transmission wheel, and the two transmission wheels are connected by a belt.

[0008] Furthermore, the second linkage assembly includes a first bevel gear, a second bevel gear, a third bevel gear, a rotating shaft and a fourth bearing seat, the circumferential surfaces of the second rotating rod and the third rotating rod are fixedly connected to the first bevel gear, the lower end of the top plate is fixedly connected to the fourth bearing seat, the internal rotation of the fourth bearing seat is connected to the rotating shaft, the front and rear ends of the rotating shaft are fixedly connected to the second bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0009] Furthermore, two of the first bearing seat, the second bearing seat and the third bearing seat are each provided, and are symmetrically distributed on the left and right sides, and are all fixedly installed at the lower end of the top plate.

[0010] Furthermore, the mounting plates at the frontmost end, the middle position and the rearmost end are detachably connected to the first fire curtain, the second fire curtain and the third fire curtain via bolts respectively.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, the multi-piece fire curtain lifting device can drive the second sprocket located on the left side of the lower end to rotate by controlling the operation of the motor. At this time, with the cooperation of the second sprocket located at the upper end, the second chain is rotated, and the second sprocket located at the upper end and the second rotating rod are also rotated at the same time, and then with the cooperation of the mounting plate located in the middle position, the second fire curtain in the middle position is driven to lift and lower. The rotation operation of the second rotating rod will, with the cooperation of the first linkage assembly and the second linkage assembly, make the second rotating rod and the third rotating rod rotate at the same time, and then make the first sprocket, the third sprocket, the first chain and the third chain rotate at the same time, and at the same time, with the cooperation of the mounting plates located at the front end and the rear end, drive the first fire curtain and the third fire curtain to perform lifting operations. In this way, by controlling the operation of one motor, multiple fire curtains can be controlled to perform lifting operations at the same time. The presence of multiple fire curtains can slow down the speed at which the fire spreads along the stage to the auditorium when a fire occurs, improve the safety of the auditorium, and buy more time for rescue personnel, thereby reducing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a multi-piece fire curtain lifting device proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of a multi-piece fire curtain lifting device proposed by the utility model from the left side;

[0015] Figure 3 This is a schematic diagram of the structure of a multi-piece fire curtain lifting device proposed by the utility model after the top plate is split from above;

[0016] Figure 4 A multi-piece fire curtain lifting device proposed by the utility model Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0017] Figure 5 A multi-piece fire curtain lifting device proposed by the utility model Figure 3 Schematic diagram of the enlarged structure of B.

[0018] Legend:

[0019] 1. Base; 2. Top plate; 3. Motor; 4. First sprocket; 5. Second sprocket; 6. Third sprocket; 7. First chain; 8. Second chain; 9. Third chain; 10. First fire curtain; 11. Second fire curtain; 12. Third fire curtain; 13. First rotating rod; 14. First bearing seat; 15. Drive wheel; 16. Belt; 17. Mounting plate; 18. Second bearing seat; 19. Third bearing seat; 20. First bevel gear; 21. Second bevel gear; 22. Rotating shaft; 23. Fourth bearing seat; 24. Second rotating rod; 25. Third rotating rod. DETAILED DESCRIPTION

[0020] Reference Figure 1-5 The utility model provides a multi-piece fire curtain lifting device, including a base 1 and a top plate 2, the base 1 is provided with two, which are symmetrically distributed about the top plate 2, and the top plate 2 is located at the upper end of the base 1, and the upper end of the left base 1 is fixedly connected with a motor 3, and the interior of the two bases 1 is rotatably connected with a first sprocket 4, a second sprocket 5 and a third sprocket 6 from front to back in sequence, and the first sprocket 4, the second sprocket 5 and the third sprocket 6 are each provided with two groups, and each group is provided with two, one group of the first sprocket 4, the second sprocket 5 and the third sprocket 6 is rotatably connected with the base 1, and the other group of the first sprocket 4, the second sprocket 5 and the third sprocket 6 is installed at the lower end of the top plate 2, the output shaft end of the motor 3 is fixedly connected with the second sprocket 5 located on the left side of the lower end, and the lower end of the top plate 2 is fixedly connected with a first bearing seat 14, a second bearing seat 18 and a third bearing seat 19, the first bearing seat 14 is rotatably connected with a first rotating rod 13, and the two first sprockets 4 at the upper end are respectively fixedly mounted on the first rotating rod 13 The left and right ends of the two first sprockets 4 at the upper and lower ends are connected by the first chain 7, the second bearing seat 18 is internally rotatably connected to the second rotating rod 24, the two second sprockets 5 at the upper end are respectively fixedly installed on the left and right ends of the second rotating rod 24, the two second sprockets 5 at the upper and lower ends are connected by the second chain 8, the third bearing seat 19 is internally rotatably connected to the third rotating rod 25, the two third sprockets 6 at the upper end are connected by the third chain 9, the front ends of the first chain 7 and the second chain 8 and the rear end of the third chain 9 are fixedly connected to the mounting plate 17, the front end of the mounting plate 17 at the front end is fixedly connected to the first fire curtain 10, the front end of the mounting plate 17 at the middle position is fixedly connected to the second fire curtain 11, and the rear end of the mounting plate 17 at the rear end is fixedly connected to the third fire curtain 12, the first rotating rod 13 and the second rotating rod 24 are connected by the first linkage assembly, and the second rotating rod 24 and the third rotating rod 25 are connected by the second linkage assembly.

[0021] During operation, the top plate 2 is installed on the ceiling of the indoor stage, and multiple fire curtains are located at the junction of the stage and the auditorium. When a fire occurs, the motor 3 drives the second sprocket 5 located on the left side of the lower end to rotate. At this time, with the cooperation of the second sprocket 5 located on the upper left end, the second chain 8 is driven to rotate, and the second sprocket 5 and the second rotating rod 24 will also rotate. The rotation of the second rotating rod 24 will drive the first rotating rod 13 and the third rotating rod 25 to rotate under the action of the first linkage assembly and the second linkage assembly, thereby causing the first sprocket 4 and the third sprocket 6 as well as the first chain 7 and the third chain 9 to rotate. At this time, with the cooperation of the mounting plate 17, the first fire curtain 10, the second fire curtain 11 and the third fire curtain 12 will be lifted and lowered at the same time. The three fire curtains block the stage and the auditorium at the same time, which can slow down the speed at which the fire spreads to the auditorium along the stage, improve the safety of the auditorium, and gain more time for rescue personnel, thereby reducing losses.

[0022] The upper end surfaces of the two bases 1 are provided with mounting holes. During operation, the base 1 can be more stably mounted in a suitable position by passing bolts through the mounting holes.

[0023] The first linkage assembly includes a transmission wheel 15 and a belt 16. The circumferential surfaces of the first rotating rod 13 and the second rotating rod 24 are fixedly connected with the transmission wheel 15, and the two transmission wheels 15 are connected by the belt 16. When working, the rotation of the second rotating rod 24 will drive the transmission wheel 15 thereon to rotate. At this time, under the action of the belt 16, the first rotating rod 13 and the transmission wheel 15 on the first rotating rod 13 can be driven to rotate, so that the second rotating rod 24 and the first rotating rod 13 can rotate at the same time.

[0024] The second linkage assembly includes a first bevel gear 20, a second bevel gear 21, a third bevel gear, a rotating shaft 22 and a fourth bearing seat 23. The circumferential surfaces of the second rotating rod 24 and the third rotating rod 25 are fixedly connected with the first bevel gear 20. The lower end of the top plate 2 is fixedly connected with the fourth bearing seat 23. The inner part of the fourth bearing seat 23 is rotatably connected with the rotating shaft 22. The front and rear ends of the rotating shaft 22 are fixedly connected with the second bevel gear 21, and the second bevel gear 21 is meshed with the first bevel gear 20. During operation, the second rotating rod 24 rotates, which can drive the first bevel gear 20 on the second rotating rod 24 to rotate, and then drive the second bevel gear 21 at the front end to rotate. At this time, with the cooperation of the rotating shaft 22, the first bevel gear 20 and the second bevel gear 21 at the rear end are rotated, and then the third rotating rod 25 is rotated. At this time, the second rotating rod 24 and the third rotating rod 25 can rotate in the opposite direction at the same time, so that the fire curtain at the middle position and the rear end can be lifted and lowered at the same time.

[0025] The first bearing seat 14, the second bearing seat 18 and the third bearing seat 19 are each provided with two, and are symmetrically distributed, and are fixedly mounted on the lower end of the top plate 2. During operation, the first rotating rod 13, the second rotating rod 24 and the third rotating rod 25 can rotate more smoothly.

[0026] The mounting plates 17 at the front end, the middle position and the rear end are detachably connected to the first fire curtain 10, the second fire curtain 11 and the third fire curtain 12 by bolts. During operation, it is convenient to remove the first fire curtain 10, the second fire curtain 11 and the third fire curtain 12 from the mounting plate 17 for replacement, wherein the first fire curtain 10 faces the auditorium and the third fire curtain 12 faces the stage. Whether the third fire curtain 12 is damaged due to a fire on the stage or the first fire curtain 10 is damaged due to a fire in the auditorium, the bolts can be directly and conveniently removed, thereby facilitating the removal of the first fire curtain 10 or the third fire curtain 12 for replacement.

[0027] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-piece fire curtain lifting device, comprising a base (1) and a top plate (2), characterized in that: The base (1) is provided with two, and is symmetrically distributed with respect to the top plate (2), and the top plate (2) is located at the upper end of the base (1), and the upper end of the left base (1) is fixedly connected to the motor (3), and the insides of the two bases (1) are connected to the first sprocket (4), the second sprocket (5) and the third sprocket (6) in sequence from front to back, and the first sprocket (4), the second sprocket (5) and the third sprocket (6) are provided with two groups, and each group is provided with two, and one group of the first sprocket (4), the second sprocket (5) and the third sprocket (6) rotates with the base (1) The motor (3) is connected to the second sprocket (5) and the third sprocket (6) by rotation. The motor (3) is connected to the second sprocket (5) and the third sprocket (6) by rotation. The motor (3) is connected to the second sprocket (5) and the third sprocket (6) by rotation. The motor (3) is connected to the second sprocket (5) and the third sprocket (19) by rotation. The first bearing seat (14) is connected to the first rotating rod (13) by rotation. The two first sprockets (4) at the upper end are respectively fixedly mounted on the left and right ends of the first rotating rod (13). The two first sprockets (4) at the upper end are respectively fixedly mounted on the left and right ends of the first rotating rod (13). The first sprockets (4) are connected to each other via a first chain (7); the second bearing seat (18) is internally rotatably connected to a second rotating rod (24); the two second sprockets (5) located at the upper end are respectively fixedly mounted on the left and right ends of the second rotating rod (24); the two second sprockets (5) at the upper and lower ends are connected to each other via a second chain (8); the third bearing seat (19) is internally rotatably connected to a third rotating rod (25); the two third sprockets (6) located at the upper end are connected to each other via a third chain (9); the first chain (7) and the second chain (8) are The front end of the first mounting plate (17) and the rear end of the third chain (9) are both fixedly connected to a mounting plate (17); the front end of the mounting plate (17) at the front end is fixedly connected to a first fire curtain (10); the front end of the mounting plate (17) at the middle position is fixedly connected to a second fire curtain (11); and the rear end of the mounting plate (17) at the rear end is fixedly connected to a third fire curtain (12); the first rotating rod (13) and the second rotating rod (24) are connected via a first linkage assembly; and the second rotating rod (24) and the third rotating rod (25) are connected via a second linkage assembly.

2. A multi-piece fire curtain lifting device according to claim 1, characterized in that: The upper end surfaces of the two bases (1) are both provided with mounting holes.

3. A multi-piece fire curtain lifting device according to claim 1, characterized in that: The first linkage assembly comprises a transmission wheel (15) and a belt (16); the circumferential surfaces of the first rotating rod (13) and the second rotating rod (24) are both fixedly connected to the transmission wheel (15); and the two transmission wheels (15) are connected via the belt (16).

4. A multi-piece fire curtain lifting device according to claim 1, characterized in that: The second linkage assembly comprises a first bevel gear (20), a second bevel gear (21), a third bevel gear, a rotating shaft (22) and a fourth bearing seat (23); the circumferential surfaces of the second rotating rod (24) and the third rotating rod (25) are fixedly connected to the first bevel gear (20); the lower end of the top plate (2) is fixedly connected to the fourth bearing seat (23); the interior of the fourth bearing seat (23) is rotatably connected to the rotating shaft (22); the front and rear ends of the rotating shaft (22) are fixedly connected to the second bevel gear (21); and the second bevel gear (21) is meshed with the first bevel gear (20).

5. A multi-piece fire curtain lifting device according to claim 1, characterized in that: Two of the first bearing seat (14), the second bearing seat (18) and the third bearing seat (19) are provided and are symmetrically distributed on the left and right sides, and are fixedly mounted on the lower end of the top plate (2).

6. A multi-piece fire curtain lifting device according to claim 1, characterized in that: The mounting plates (17) located at the front end, the middle position and the rear end are detachably connected to the first fire curtain (10), the second fire curtain (11) and the third fire curtain (12) respectively by bolts.

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