A smoke screen curtain for traversing a track gap
By designing a smoke curtain to cross the gaps between tracks, and using a motor to drive the lifting and lowering of the flame-retardant and fireproof cloth, combined with limit switches and electromagnets, the problem of existing smoke curtains being unable to pass through small gaps and being unable to be automatically controlled under abnormal conditions has been solved, realizing free sliding between tracks and automatic smoke blocking function.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YANGZHI REHABILITATION HOSPITAL
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-24
AI Technical Summary
The existing smoke curtain structure is complex and bulky, unable to pass through gaps of less than 2mm, and cannot be automatically controlled under abnormal conditions, especially in the event of a power outage, it cannot guarantee that it will descend into place.
A smoke curtain was designed, comprising a shell, a roller, a motor, a flame-retardant fireproof cloth, and a lifting control mechanism. The motor drives the roller to raise and lower the flame-retardant fireproof cloth. Combined with limit switches and a through-type push-pull electromagnet, it ensures automatic control of descent into position under abnormal conditions. The structure is simple and compact.
It enables lifting and lowering at the joints between tracks, meets fire protection requirements, ensures the free sliding of the electric transfer machine, and automatically controls descent into position in abnormal situations. The structure is simple and easy to install.
Smart Images
Figure CN224540832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a smoke curtain for crossing the gap of a track, belonging to the technical field of supporting equipment for rehabilitation training tracks. Background Technology
[0002] Walking rehabilitation training equipment typically consists of a walking track suspended from the ceiling, which passes through a smoke curtain. The electric transfer machine must slide freely on the track, requiring the gaps between the tracks to be less than 2mm. The portion of the smoke curtain that passes through the gaps between the tracks must be thin, with a thickness not exceeding 2mm. However, existing smoke curtain solutions are relatively complex and bulky, making it impossible to pass through gaps of less than 2mm. Furthermore, they cannot be automatically controlled in abnormal situations and do not consider extreme situations such as power outages. Utility Model Content
[0003] The purpose of this invention is to provide a smoke curtain for crossing the gap of a track, in order to solve the problem that it is currently impossible to install a smoke curtain where the track is suspended on the ceiling.
[0004] The technical solution adopted in this utility model is as follows: A smoke curtain for traversing a track gap includes a housing, a roller, a motor, and a flame-retardant fireproof cloth. The housing is connected to the main building structure via a hanging column. The roller is rotatably disposed inside the housing. The motor is disposed at one end of the housing and is used to drive the roller to rotate. The flame-retardant fireproof cloth is wound on the roller. An opening is provided at the bottom of the housing for the flame-retardant fireproof cloth to pass through. A counterweight plate is provided at the bottom free edge of the flame-retardant fireproof cloth. The counterweight plate is provided with a notch, and the flame-retardant and fireproof cloth at the notch passes through the gap at the track joint. A lifting control mechanism is connected between the motor and the reel. The lifting control mechanism includes a bracket, which is located at one end of the housing. The motor is mounted on the bracket, and its output shaft is coaxially arranged with the reel. A transmission shaft is coaxially connected between the motor's output shaft and the reel. A limit plate is threaded onto the transmission shaft. A limit plate is provided on one side of the bracket, and a limit stroke hole is formed on the limit plate. One end of the limit plate is slidably connected in the limit stroke hole. An upper limit switch and a lower limit switch are installed on the bracket. The arm pressing end of the upper limit switch and the arm pressing end of the lower limit switch are located at the two ends of the limit stroke hole, respectively. The upper limit switch and the lower limit switch are electrically connected to a controller, and the controller is electrically connected to the motor. A through-type push-pull electromagnet is provided on the other side of the bracket and is electrically connected to the controller. The through-type push-pull electromagnet is used to block the limit plate.
[0005] As a preferred embodiment of this utility model, two limiting plates are provided on one side of the bracket, the two limiting plates are arranged at intervals above and below each other, and the limiting stroke holes on the two limiting plates correspond to each other.
[0006] As a preferred embodiment of this utility model, one end of the limiting plate is formed with two limiting posts, which are slidably connected in the limiting stroke holes of the two limiting plates, and the limiting posts protrude from the limiting stroke holes to facilitate triggering the boom pressing end of the upper limit switch and the boom pressing end of the lower limit switch.
[0007] As a preferred embodiment of this invention, the limiting plate is located inside the bracket; the upper limit switch and the lower limit switch are installed on the outside of the bracket.
[0008] As a preferred embodiment of this invention, a manual control switch is also included, which is electrically connected to the controller.
[0009] As a preferred embodiment of this invention, the controller is electrically connected to a heat-sensing fire detector and / or a smoke-sensing fire detector near the track docking point.
[0010] As a preferred embodiment of this invention, the through-pull electromagnet blocks the limiting plate when energized, but does not block the limiting plate when de-energized, in order to cope with the extreme situation of power failure.
[0011] The advantages of this utility model are: This utility model of smoke curtain can be raised and lowered at the joint between the tracks, which meets the relevant fire protection requirements, while ensuring the free sliding of the electric shifting machine on the track. Moreover, it can be automatically controlled in abnormal situations to ensure that the smoke curtain is lowered into place. The structure is simple and compact and easy to install. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the axle side after the present invention is installed. Figure 1 ; Figure 2 This is a schematic diagram of the axle side after the present invention is installed. Figure 2 ; Figure 3 This is a bottom view diagram of the utility model after installation. Figure 1 ; Figure 4 This is a bottom view diagram of the utility model after installation. Figure 2 ; Figure 5 This is a schematic diagram of the structure of this utility model; Figure 6 This is a schematic diagram of the lifting control mechanism of this utility model. Figure 1 ; Figure 7 This is a schematic diagram of the lifting control mechanism of this utility model. Figure 2 ; Figure 8This is a schematic diagram of the lifting control mechanism of this utility model when the limit plate touches the boom pressing end of the upper limit switch. Figure 9 This is a schematic diagram of the lifting control mechanism of this utility model when the limit plate touches the boom pressing end of the lower limit switch. Figure 10 This is a schematic diagram of the support structure of the lifting control mechanism of this utility model; Figure 11 This is a schematic diagram of the limit plate structure of the lifting control mechanism of this utility model; Figure 12 This is a structural schematic diagram of the roll and flame-retardant fireproof cloth of this utility model.
[0013] Meaning of the reference numerals in the diagram: 1-Outer shell, 2-Roller, 3-Motor, 4-Flame-retardant and fireproof cloth, 5-Counterweight plate, 6-Notch; 7-Hanging column, 8-Rail, 9-Ceiling, 10-Heat fire detector and / or smoke fire detector; 11-Bracket, 12-Drive shaft, 13-Limiting piece, 14-Limiting plate, 15-Limiting stroke hole; 16-Upper limit switch, 17-Lower limit switch, 18-Through-pull electromagnet, 19-Limit post; 20 - Existing smoke curtain; 30 - Electric shifting machine. Detailed Implementation
[0014] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0015] like Figure 1-12 As shown, this embodiment is a smoke curtain for crossing the gap of a track, including a shell 1, a roller 2, a motor 3, and a flame-retardant fireproof cloth 4. The shell 1 is connected to the main building structure via a hanging column 7. The roller 2 is rotatably installed inside the shell 1. The motor 3 is installed at one end of the shell 1 and is used to drive the roller 2 to rotate. The flame-retardant fireproof cloth 4 is wound on the roller 2. An opening is provided at the bottom of the shell 1 for the flame-retardant fireproof cloth 4 to pass through. A counterweight plate 5 is provided at the free edge of the bottom of the flame-retardant fireproof cloth 4. A notch 6 is provided on the counterweight plate 5, and the flame-retardant fireproof cloth 4 at the notch 6 passes through the gap at the joint of the track 8. A lifting control mechanism is connected between the motor 3 and the roller 2.
[0016] In this embodiment, the lifting control mechanism includes a bracket 11, which is disposed at one end of the housing 1. A motor 3 is mounted on the bracket 11, and the output shaft of the motor 3 is coaxially arranged with the reel 2. In the power-off state, the output shaft of the motor 3 can rotate freely. A transmission shaft 12 is coaxially connected between the output shaft of the motor 3 and the reel 2. A limit plate 13 is threaded onto the transmission shaft 12. A limit plate 14 is disposed on one side of the bracket 11, and a limit travel hole 15 is formed on the limit plate 14. One end of the limit plate 13 is slidably connected in the limit travel hole 15. An upper limit switch 1 is installed on the bracket 11. 6 and lower limit switch 17, the boom pressing end of upper limit switch 16 and the boom pressing end of lower limit switch 17 are respectively located at both ends of limit stroke hole 15, upper limit switch 16 and lower limit switch 17 are electrically connected to controller, controller is electrically connected to motor 3; on the other side of bracket 11, a through push-pull electromagnet 18 electrically connected to controller is provided, the through push-pull electromagnet 18 is used to block limit plate 13; in this embodiment, the through push-pull electromagnet 18 blocks limit plate 13 in the energized state, and does not block limit plate 13 in the de-energized state, in order to cope with the extreme situation of power failure.
[0017] In this embodiment, two limiting plates 14 are provided on one side of the bracket 11. The two limiting plates 14 are arranged vertically at intervals, and the limiting stroke holes 15 on the two limiting plates 14 correspond to each other. Figure 10 As shown; one end of the limiting piece 13 has two limiting posts 19, which are slidably connected to the limiting stroke holes 15 of the two limiting plates 14, and the limiting posts 19 protrude from the limiting stroke holes 15, as shown. Figure 6 and 11 As shown, this is to facilitate triggering the boom pressing end of the upper limit switch 16 and the boom pressing end of the lower limit switch 17.
[0018] In this embodiment, the limiting plate 14 is located inside the bracket 11; the upper limit switch 16 and the lower limit switch 17 are installed on the outside of the bracket 11, and the upper limit switch 16 and the lower limit switch 17 are arranged vertically at intervals, with the upper limit switch 16 located at the bottom and the lower limit switch 17 located at the top. Figure 7-9 As shown.
[0019] This embodiment also includes a manual control switch, which is electrically connected to the controller. The manual control switch is used to input control signals to the controller so as to manually control the smoke curtain.
[0020] In this embodiment, the controller is also electrically connected to a heat detector and / or smoke detector 10 near the docking point of the track 8. The heat detector and / or smoke detector 10 are typically installed on the ceiling 9.
[0021] During installation in this embodiment, the bottom free edge of the flame-retardant fireproof cloth 4 passes through the ceiling 9, the flame-retardant fireproof cloth 4 and the surrounding existing smoke curtain 20 are on the same vertical plane, and the width of the flame-retardant fireproof cloth 4 is greater than the passage width of the electric transfer machine 30.
[0022] When the smoke curtain rises in this embodiment: A lifting signal is input to the controller via a manual control switch. Upon receiving the signal, the controller provides lifting power to motor 3. Motor 3 drives transmission shaft 12 to rotate, which in turn drives the roller 2 to rotate, causing the flame-retardant and fireproof cloth 4 to rise. During rotation, transmission shaft 12 moves limit plate 13 (threaded drive) until limit plate 13 touches the pressing end of the upper limit switch 16 and triggers it. Then, the controller energizes the through-push-pull electromagnet 18, and the moving rod of the through-push-pull electromagnet 18 extends to block limit plate 13. Figure 8 As shown, the controller simultaneously disconnects the power supply to the motor 3. Because the moving rod of the through-pull electromagnet 18 blocks the limit plate 13, the limit plate 13 cannot move. Under the action of the limit plate 13, the transmission shaft 12 and the roller 2 cannot rotate freely. Therefore, under the gravity of the counterweight plate 5, the flame-retardant and fireproof cloth 4 will not fall. At this time, the flame-retardant and fireproof cloth 4 avoids the bottom of the track 8, and the electric shifting machine 30 can slide freely through the smoke curtain at the joint between the tracks 8.
[0023] When the smoke curtain descends in this embodiment: A descent signal is input to the controller via a manual control switch, or an alarm signal is sent to the controller by the heat detector and / or smoke detector 10 in the event of a fire. Upon receiving the descent signal or alarm signal, the controller disconnects the power supply to the through-push-pull electromagnet 18. The moving rod of the through-push-pull electromagnet 18 retracts and no longer obstructs the limit plate 13. At the same time, the controller provides descent power to the motor 3. The motor 3 drives the transmission shaft 12 to rotate, and the transmission shaft 12 drives the roller 2 to rotate. Under the gravity of the counterweight plate 5, the flame-retardant fireproof cloth 4 descends at the same speed as the roller 2. During the rotation of the transmission shaft 12, the limit plate 13 moves (threaded drive) until the limit plate 13 touches the arm pressing end of the lower limit switch 17 and triggers the lower limit switch 17. Then, the controller disconnects the descent power supply to the motor 3. At this time, the flame-retardant fireproof cloth 4 passes through the gap between the tracks 8 and together with the existing smoke curtain 20 around it to form a complete smoke curtain and play a role in blocking smoke.
[0024] If the power is cut off during a fire, the push-pull electromagnet 18 will be de-energized, and the moving rod of the push-pull electromagnet 18 will no longer block the limiting plate 13. At this time, the roller 2, the transmission shaft 12, and the output shaft of the motor 3 can rotate freely. Therefore, under the gravity of the counterweight plate 5, the flame-retardant fireproof cloth 4 will quickly descend into place and, together with the existing smoke curtain 20, form a complete smoke curtain to block smoke, thus ensuring that the flame-retardant fireproof cloth 4 can still descend into place even in the extreme case of power failure.
[0025] This utility model of smoke curtain can be raised and lowered at the joint between the tracks, which meets the relevant fire protection requirements, while ensuring the free sliding of the electric shifting machine on the track. Moreover, it can be automatically controlled in abnormal situations to ensure that the smoke curtain is lowered into place. The structure is simple and compact and easy to install.
[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "setting," and "forming" should be interpreted broadly; for example, they can refer to fixed connections or settings, detachable connections or settings, or integrated structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components; those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] The above embodiments are only used to illustrate the technical solutions of this utility model. Those skilled in the art should understand that the above embodiments do not limit this utility model in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.
Claims
1. A smoke curtain for traversing a track gap, comprising a housing, a roller, a motor, and a flame-retardant fireproof cloth, wherein the housing is connected to the main building structure via a hanging column, the roller is rotatably disposed inside the housing, the motor is disposed at one end of the housing and is used to drive the roller to rotate, the flame-retardant fireproof cloth is wound on the roller, the bottom of the housing is provided with an opening for the flame-retardant fireproof cloth to pass through, and a counterweight plate is provided at the free edge of the bottom of the flame-retardant fireproof cloth; characterized in that: The counterweight plate is provided with a notch, and the flame-retardant and fireproof cloth at the notch passes through the gap at the track joint. A lifting control mechanism is connected between the motor and the reel. The lifting control mechanism includes a bracket, which is located at one end of the housing. The motor is mounted on the bracket, and its output shaft is coaxially arranged with the reel. A transmission shaft is coaxially connected between the motor's output shaft and the reel. A limit plate is threaded onto the transmission shaft. A limit plate is provided on one side of the bracket, and a limit stroke hole is formed on the limit plate. One end of the limit plate is slidably connected in the limit stroke hole. An upper limit switch and a lower limit switch are installed on the bracket. The arm pressing end of the upper limit switch and the arm pressing end of the lower limit switch are located at the two ends of the limit stroke hole, respectively. The upper limit switch and the lower limit switch are electrically connected to a controller, and the controller is electrically connected to the motor. A through-type push-pull electromagnet is provided on the other side of the bracket and is electrically connected to the controller. The through-type push-pull electromagnet is used to block the limit plate.
2. The smoke curtain for traversing a track gap according to claim 1, characterized in that, Two limiting plates are provided on one side of the bracket. The two limiting plates are arranged at intervals, and the limiting stroke holes on the two limiting plates correspond to each other.
3. A smoke curtain for traversing a track gap according to claim 2, characterized in that, Two limiting posts are formed at one end of the limiting piece. The two limiting posts are slidably connected in the limiting stroke holes of the two limiting plates, and the limiting posts protrude from the limiting stroke holes.
4. A smoke curtain for traversing a track gap according to any one of claims 1-3, characterized in that, The limiting plate is located inside the bracket.
5. A smoke curtain for traversing a track gap according to claim 4, characterized in that, The upper limit switch and the lower limit switch are mounted on the outside of the bracket.
6. A smoke curtain for traversing a track gap according to claim 1, characterized in that, It also includes a manual control switch, which is electrically connected to the controller.
7. A smoke curtain for traversing a track gap according to claim 1 or 6, characterized in that, The controller is electrically connected to the heat detector and / or smoke detector near the track docking point.
8. A smoke curtain for traversing a track gap according to claim 1, characterized in that, The through-push-pull electromagnet blocks the limiting plate when energized.