Turnover type electric smoke-blocking vertical wall device
By designing a folding electric smoke curtain device, the height of the smoke curtain is adjusted by using a motor-driven bevel gear and screw structure, and the folding and raising/lowering of the smoke curtain is achieved through an electric push rod and pull wire system. This solves the problem of inflexible adjustment in existing technologies and enables flexible installation and convenient maintenance in sites at different heights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN ZHONGBODAOHE FIRE TECH CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-01
AI Technical Summary
Existing smoke curtain devices cannot be flexibly adjusted according to the height of the installation site, resulting in insufficient flexibility in use and limited applicability.
A folding electric smoke curtain device was designed, comprising an adjustment component and a lifting adjustment component. The height of the smoke curtain body and the extended smoke curtain is adjusted by a motor-driven bevel gear and lead screw structure, and the folding and lifting of the smoke curtain are achieved by an electric push rod and a pull cable system.
This enables flexible installation and convenient maintenance of smoke curtain devices at different heights, expands their applicability, and improves safety and convenience.
Smart Images

Figure CN224180126U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smoke curtain technology, and in particular to a folding electric smoke curtain device. Background Technology
[0002] Smoke curtain videos are video resources that introduce the installation, function, and usage of smoke curtains. They are usually used for fire safety education and training to help people understand the importance of smoke curtains and their role in fire prevention. Smoke curtains are fixed or movable smoke-blocking facilities made of non-combustible materials that hang at least 500mm from the ceiling. They are installed vertically under the building ceiling, beams, or suspended ceiling and are mainly used in high-rise or super high-rise shopping malls, office buildings, and warehouses. They can effectively block smoke from flowing horizontally under the building ceiling.
[0003] The existing smoke curtain devices have the following drawbacks in practical use:
[0004] Because the height of the installation site varies, the height of the smoke curtain needs to be determined according to the height of the site. When the existing smoke curtain device is used in installation sites of different heights, the height can only be fixed and cannot be adjusted according to the height of the installation site, which makes it inflexible in use. Utility Model Content
[0005] In view of the problem that existing smoke curtain devices can only be used at a fixed height and cannot be adjusted according to the height of the installation site due to the different installation site heights, the present invention provides a folding electric smoke curtain device.
[0006] The technical solution adopted by this utility model is: a folding electric smoke curtain device, including a top base, the bottom of which is rotatably connected to a smoke curtain body via a rotating shaft, an extended smoke curtain being slidably inserted into the bottom of the smoke curtain body, and an adjustment assembly provided on the outer wall of the smoke curtain body. The adjustment assembly includes a transmission box, a lead screw, a lifting block, a mounting base, and a slot. The transmission box is fixedly installed on the outer wall of the rear side of the smoke curtain body, and the top end of the lead screw is threaded through the bottom outer wall of the transmission box. A bevel gear is provided at one end of the lead screw inside the transmission box. A... A motor is fixedly installed on the outer wall, and a bevel gear is installed on the output shaft of the motor. The bevel gear and the bevel gear mesh with each other. The lifting block is fixedly installed on the outer wall of the rear side of the extended smoke curtain, and the lifting block is threaded to the outside of the lead screw. The mounting base is fixedly installed on the outer wall of the rear side of the smoke curtain, and an electric push rod is fixedly installed on the outer wall of the mounting base. The output end of the electric push rod is provided with an insertion block located inside the smoke curtain body. Several slots are equally spaced on the outer wall of the rear side of the extended smoke curtain, and the insertion blocks are inserted into the slots.
[0007] Furthermore, a lifting adjustment assembly is provided on the rear side of the top seat. The lifting adjustment assembly includes a storage box, a lifting plate, a first folding frame, a second folding frame, a rotating rod, and an electric push rod. The top seat is fixed on the lifting plate.
[0008] Furthermore, a rotating seat is fixedly installed on the inner wall of the storage box and on the outer wall of the top of the lifting plate, and the top and bottom ends of the first folding frame are respectively rotatably connected to the interior of the two rotating seats.
[0009] Furthermore, rotating seats are fixedly installed on the inner wall of the storage box and the outer wall of the top of the lifting plate. The top and bottom ends of the second folding frame are rotatably connected to the interior of the two rotating seats. The first folding frame and the second folding frame are rotatably connected by a rotating rod.
[0010] Furthermore, a first rod sleeve is provided at the top of the second folding frame, and a second rod sleeve is fixedly provided on the outer wall of the rotating rod.
[0011] Furthermore, the top end of the second electric actuator is rotatably connected to the inside of the first sleeve, and the output end of the second electric actuator is rotatably connected to the inside of the second sleeve.
[0012] Furthermore, a second motor is fixedly installed on the outer wall of one side of the top seat, and a winding rod is installed on the output shaft of the second motor. A pull line is installed on the winding rod, and a fixing block is installed on the outer wall, with the bottom end of the pull line fixed to the fixing block.
[0013] The beneficial effects of this utility model are:
[0014] 1. By adjusting the components, this utility model can flexibly adjust the height of the smoke curtain body and the extended smoke curtain according to the site where the smoke curtain device is installed, so that it can be used in installation sites at different heights, making it more flexible and applicable to a wider range of situations.
[0015] 2. Secondly, this utility model, through the lifting and adjusting component, can synchronously drive the top seat to lift and lower the smoke curtain body and the extended smoke curtain, which facilitates the descent of the smoke curtain device installed at a high position, making it convenient for the smoke curtain device to be inspected and maintained without the need for maintenance workers to climb the ladder for maintenance, making it safer and more convenient. Attached Figure Description
[0016] Figure 1 This is a three-dimensional view of the entire utility model;
[0017] Figure 2 This is a perspective view of the adjustment component of this utility model;
[0018] Figure 3 This is a three-dimensional view of the inside of the transmission box of this utility model;
[0019] Figure 4 This is a perspective view of the electric actuator and insert block of this utility model;
[0020] Figure 5 This is a perspective view of the lifting and adjusting component of this utility model.
[0021] The components in the diagram are labeled as follows: 1. Top seat; 2. Smoke curtain body; 3. Extended smoke curtain; 4. Adjustment assembly; 401. Transmission box; 402. Lead screw; 403. Bevel gear one; 404. Lifting block; 405. Motor one; 406. Bevel gear two; 407. Mounting base; 408. Electric push rod one; 409. Insert block; 410. Slot; 5. Lifting adjustment assembly; 501. Storage box; 502. Lifting plate; 503. Rotating seat one; 504. First folding frame; 505. Rotating seat two; 506. Second folding frame; 507. Rotating rod; 508. Rod sleeve one; 509. Electric push rod two; 510. Rod sleeve two; 6. Motor two; 7. Rewinding rod; 8. Pull cable; 9. Fixing block. Detailed Implementation
[0022] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., 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 simplifying the description, 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.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] The following is in conjunction with the appendix Figures 1-5 The present invention will be further described below.
[0025] In order to solve the problems existing in the background technology, this application proposes the following technical solution: a folding electric smoke curtain device.
[0026] The specific technical solution includes a top seat 1, the bottom of which is rotatably connected to a smoke curtain body 2 via a rotating shaft. An extended smoke curtain 3 is slidably inserted into the bottom of the smoke curtain body 2. An adjustment assembly 4 is provided on the outer wall of the smoke curtain body 2. The adjustment assembly 4 includes a transmission box 401, a lead screw 402, a lifting block 404, a mounting base 407, and a slot 410. The transmission box 401 is fixedly installed on the outer wall of the rear side of the smoke curtain body 2, and the top end of the lead screw 402 is threaded through the bottom outer wall of the transmission box 401. A bevel gear 403 is provided at one end of the lead screw 402 inside the transmission box 401. A motor 405 is fixedly installed on one side of the outer wall of the transmission box 401, and a bevel gear 406 is provided on the output shaft of the motor 405. 406 meshes with bevel gear 403. Lifting block 404 is fixedly installed on the outer wall of the rear side of the extended smoke curtain 3, and lifting block 404 is threaded onto the outside of lead screw 402. Mounting base 407 is fixedly installed on the outer wall of the rear side of the smoke curtain body 2, and electric push rod 408 is fixedly installed on the outer wall of mounting base 407. The output end of electric push rod 408 is provided with insert block 409 located inside the smoke curtain body 2. Several slots 410 are equally spaced on the outer wall of the rear side of the extended smoke curtain 3, and insert block 409 is inserted into the slot 410. The overall height of smoke curtain body 2 and extended smoke curtain 3 can be adjusted according to the height of the installation site, thus making it suitable for installation sites of different heights.
[0027] In specific implementations, such as Figure 1 and Figure 5 As shown, a lifting adjustment assembly 5 is provided on the rear side of the top seat 1. The lifting adjustment assembly 5 includes a storage box 501, a lifting plate 502, a first folding frame 504, a second folding frame 506, a rotating rod 507, and an electric push rod 509. The top seat 1 is fixed on the lifting plate 502. The lifting adjustment assembly 5 is used to raise and lower the top seat 1, the smoke curtain body 2, and the extended smoke curtain 3 for easy maintenance.
[0028] Furthermore, rotating seats 503 are fixedly installed on the inner wall of the storage box 501 and the outer wall of the top of the lifting plate 502. The top and bottom ends of the first folding frame 504 are rotatably connected to the inside of the two rotating seats 503, so that the first folding frame 504 is rotatably connected to the lifting plate 502 and the storage box 501 respectively.
[0029] Furthermore, rotating seats 505 are fixedly installed on the inner wall of the storage box 501 and the outer wall of the top of the lifting plate 502. The top and bottom ends of the second folding frame 506 are rotatably connected to the inside of the two rotating seats 505 respectively. The first folding frame 504 and the second folding frame 506 are rotatably connected through the rotating rod 507, so that the first folding frame 504 is rotatably connected to the lifting plate 502 and the storage box 501 respectively.
[0030] Furthermore, the top of the second folding frame 506 is provided with a first sleeve 508, and a second sleeve 510 is fixedly provided on the outer wall of the rotating rod 507. Both the first sleeve 508 and the second sleeve 510 are rotatably connected to the second electric push rod 509.
[0031] Furthermore, the top end of the second electric actuator 509 is rotatably connected to the inside of the first sleeve 508, and the output end of the second electric actuator 509 is rotatably connected to the inside of the second sleeve 510, so that the second electric actuator 509 can push the second sleeve 510 to move.
[0032] In specific implementations, such as Figure 1 As shown, a motor 6 is fixedly installed on the outer wall of one side of the top seat 1, and a winding rod 7 is installed on the output shaft of the motor 6. A pull wire 8 is installed on the winding rod 7. A fixing block 9 is installed on the outer wall, and the bottom end of the pull wire 8 is fixed on the fixing block 9. The motor 6 can drive the winding rod 7 to rotate and the pull wire 8 to be wound up and down.
[0033] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview:
[0034] In use, the motor 405 is turned on, driving the bevel gear 406 to rotate and mesh with the bevel gear 403. This causes the bevel gear 403 to drive the lead screw 402 to rotate, which in turn causes the lifting block 404 to synchronously move the top seat 1 axially on the lead screw 402. This allows for adjustment of the overall height of the smoke curtain body 2 and the extended smoke curtain 3, enabling installation in locations at different heights and broadening its application range. After adjustment, the electric actuator 408 is turned on, moving the insert block 409 so that it is inserted into the slot 410. This secures the smoke curtain body 2 and the extended smoke curtain 3, preventing the extended smoke curtain 3 from falling down on its own. Machine 2 6 can drive the winding rod 7 to rotate and the pull wire 8 to take in and release. When the pull wire 8 is taking in, it can cause the extended smoke curtain 3 and the smoke curtain body 2 to fold and be parallel to the top seat 1. When the pull wire 8 is releasing, it can cause the extended smoke curtain 3 and the smoke curtain body 2 to fold and be perpendicular to the top seat 1. Activating the electric push rod 2 509 can push the rod sleeve 2 510 to move. Due to the action of the rotating seat 1 503 and the rotating seat 2 505, the first folding frame 504 and the second folding frame 506 can rotate relative to each other, which will cause the lifting plate 502 to drive the top seat 1 to move down. The top seat 1 will drive the smoke curtain body 2 and the extended smoke curtain 3 to descend, which will facilitate the maintenance of the smoke curtain device.
[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0036] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.
Claims
1. A folding electric smoke curtain device, characterized in that, The device includes a top seat (1), the bottom of which is rotatably connected to a smoke curtain body (2) via a rotating shaft. An extended smoke curtain (3) is slidably inserted into the bottom of the smoke curtain body (2). An adjustment assembly (4) is provided on the outer wall of the smoke curtain body (2). The adjustment assembly (4) includes a transmission box (401), a lead screw (402), a lifting block (404), a mounting base (407), and a slot (410). The transmission box (401) is fixedly installed on the outer wall of the rear side of the smoke curtain body (2), and the top end of the lead screw (402) is threaded through the bottom outer wall of the transmission box (401). A bevel gear (403) is provided at one end of the lead screw (402) inside the transmission box (401). A motor (405) is fixedly installed on the outer wall of one side of the transmission box (401). Furthermore, a bevel gear 2 (406) is provided on the output shaft of motor 1 (405), the bevel gear 2 (406) meshes with bevel gear 1 (403), the lifting block (404) is fixedly provided on the outer wall of the rear side of the extended smoke curtain (3), and the lifting block (404) is threaded to the outside of the lead screw (402), the mounting base (407) is fixedly provided on the outer wall of the rear side of the smoke curtain body (2), and an electric push rod 1 (408) is fixedly provided on the outer wall of the mounting base (407), the output end of the electric push rod 1 (408) is provided with an insert (409) located inside the smoke curtain body (2), and several slots (410) are opened in an equidistant structure on the outer wall of the rear side of the extended smoke curtain (3), and the insert (409) is inserted into the inside of the slot (410).
2. The folding electric smoke curtain device according to claim 1, characterized in that, The top seat (1) is provided with a lifting adjustment assembly (5) on the rear side. The lifting adjustment assembly (5) includes a storage box (501), a lifting plate (502), a first folding frame (504), a second folding frame (506), a rotating rod (507), and an electric push rod (509). The top seat (1) is fixed on the lifting plate (502).
3. A folding electric smoke curtain device according to claim 2, characterized in that, Rotating seats (503) are fixedly installed on the inner wall of the storage box (501) and the outer wall of the top of the lifting plate (502). The top and bottom ends of the first folding frame (504) are respectively rotatably connected to the inside of the two rotating seats (503).
4. A folding electric smoke curtain device according to claim 3, characterized in that, Rotating seats (505) are fixedly installed on the inner wall of the storage box (501) and the outer wall of the top of the lifting plate (502). The top and bottom ends of the second folding frame (506) are rotatably connected to the inside of the two rotating seats (505). The first folding frame (504) and the second folding frame (506) are rotatably connected by a rotating rod (507).
5. A folding electric smoke curtain device according to claim 4, characterized in that, The top of the second folding frame (506) is provided with a first rod sleeve (508), and the outer wall of the rotating rod (507) is fixedly provided with a second rod sleeve (510).
6. A folding electric smoke curtain device according to claim 5, characterized in that, The top end of the second electric actuator (509) is rotatably connected to the inside of the first sleeve (508), and the output end of the second electric actuator (509) is rotatably connected to the inside of the second sleeve (510).
7. A folding electric smoke curtain device according to claim 1, characterized in that, A motor 2 (6) is fixedly installed on the outer wall of one side of the top seat (1), and a winding rod (7) is installed on the output shaft of the motor 2 (6). A pull wire (8) is installed on the winding rod (7), and a fixing block (9) is installed on the outer wall. The bottom end of the pull wire (8) is fixed on the fixing block (9).