Multifunctional horizontal sliding electric lifting fireproof smoke-proof automatic door

TWM685963UActive Publication Date: 2026-08-01NAN YUAN ELECTRICAL & MECHANICAL ENTERPRISE CO LTD +4
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Patent Information

Authority / Receiving Office
TW · TW
Patent Type
Utility models
Current Assignee / Owner
NAN YUAN ELECTRICAL & MECHANICAL ENTERPRISE CO LTD
Filing Date
2026-04-10
Publication Date
2026-08-01

Smart Images

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  • Figure TWG2TB001904527_003
    Figure TWG2TB001904527_003
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Abstract

A multi-functional horizontal sliding electric lifting fireproof and smoke-proof automatic door mainly features two recessed positioning points on the top edge of the track body. The lowest point of these points has an inward tilting structure. When the door panel is about to completely close the door frame (and opening), the two suspension wheels will descend slightly along the recessed positioning points. Guided by the inward tilting structure, the two suspension wheels, along with the door panel, will move towards the door frame. At the same time, a guide member is inserted into the bottom of the door panel, presenting an inward and downward inclined guide groove with an opening at the bottom. One side of the bottom edge of the opening has an outward and upward inclined guide member. The guide groove covers the guide member downward. When the two suspension wheels enter the positioning arc, the guide member descends accordingly. Furthermore, guided by the inclined shape of the guide member, the guide groove of the guide member moves towards the opening and the door frame, ensuring that the fireproof and smoke-proof automatic door provides a reliable airtight function.
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Claims

1. A multifunctional horizontal sliding electric lifting fireproof and smoke-proof automatic door, comprising an opening with a door frame embedded therein. The door frame consists of two vertical frames on the left and right sides, an upper frame fixed to the top of the two vertical frames, and a ground frame fixed to the bottom of the two vertical frames. The vertical frames and the upper frame are fitted into the peripheral wall of the opening and are completely sealed to the peripheral wall of the opening. The ground frame consists of two vertical parts, inner and outer, embedded in the bottom surface of the opening, with the top surface of the ground frame exposed. A rubber strip is embedded in the front of the two vertical frames, and the front of the upper frame... A rubber strip is embedded in the top surface of the frame; the fireproof smoke-proof automatic door can automatically open or close the opening and the door frame. The fireproof smoke-proof automatic door includes a door panel, the bottom of which is filled with a guide member, forming an inwardly downward inclined guide groove. The bottom end of the guide groove is an opening. An inner rubber strip and an outer rubber strip are embedded on the inner and outer sides of the bottom end of the guide groove. On one side of the bottom edge of the opening of the door frame, where the guide member can move, an outwardly upward inclined guide member is provided. The guide groove covers the guide member downwards; a hanging box is fixedly installed on the... On the wall above the opening, inside the suspension box, there is a track extending the same length as the suspension box. The top edge of the track has two recessed positioning points, forming a downward slope that curves upwards to form a blocking arc after reaching a positioning arc. The downward slope gradually inclines inwards as it extends downwards, reaching its maximum incline at the positioning arc. A power source is installed on one side of the internal wall of the suspension box. A reducer is installed adjacent to the power source, receiving its drive and outputting force through a power shaft after reduction. A set of two pulleys is included, one of which is connected to the reducer... On the output shaft of the speed reducer, another pulley is located inside the suspension housing on the opposite side away from the speed reducer; a transmission belt is looped around the two pulleys; a set of two suspension wheels are fixed to the top two sides of the door panel respectively, and when the two suspension wheels are placed across the track, the door panel is in a suspended state; a connector is fixed to the center of the top of the door panel and connected upward to the transmission belt; and an electrical control box is fixed to the inner wall of the suspension housing, and the electrical control box is electrically connected to the power source, and can control the rotation direction and output of the power source.

2. The multi-functional horizontal sliding electric lifting fireproof smoke-proof automatic door as described in claim 1, wherein, When the power source outputs power through the reducer, it will cause the pulley to rotate synchronously when rotating in the forward or reverse direction, and drive the transmission belt to move around the two pulleys. Through the connection of the connector, it will drive the door panel to move synchronously.

3. The multi-functional horizontal sliding electric lifting fireproof smoke-proof automatic door as described in claim 2, wherein, The recessed positioning point allows the door panel to close the opening and the door frame to reach a position where the opening is completely closed. As the door panel closes the opening, the two suspension wheels descend along the two slopes and reach the positioning arc. During this process, guided by the gradual inward tilt of the slope and the maximum inward tilt of the positioning arc, the two suspension wheels, together with the door panel, move towards the opening and the door frame, so that the rubber strips fixed around the door panel are completely attached to the rubber strips on the door frame. At the same time, the guide member at the bottom of the door panel descends and is guided by the obliquely placed guide member. The guide groove of the guide member moves towards the bottom frame of the door frame, so that the inner and outer rubber strips embedded at the bottom of the guide groove are closely attached to the rubber strips on the bottom frame.

4. The multi-functional horizontal sliding electric lifting fireproof smoke-proof automatic door as described in claim 3, wherein, When the door panel is moved to open the opening and the door frame, the two suspension wheels will rise along the downhill slope and be guided to gradually move outward. Therefore, the door panel will leave the opening and the door frame and rise outward. At the same time, the guide member at the bottom of the door panel will rise along with it and be guided by the guide member which is placed at an angle. The guide groove of the guide member will move outward in the direction away from the opening.

5. The multi-functional horizontal sliding electric lifting fireproof smoke-proof automatic door as described in claim 1, wherein, The rubber strip can be hollow inside and have an expanded outer wall. In addition to its airtight function, the rubber strip can also have fireproof and smokeproof functions due to the addition of flame-retardant materials in its manufacturing process.

6. The multi-functional horizontal sliding electric lifting fireproof smoke-proof automatic door as described in claim 1, wherein, Depending on the site's decoration requirements, the suspended enclosure can be used in two ways: concealed and external.

7. The multi-functional horizontal sliding electric lifting fireproof smoke-proof automatic door as described in claim 1, wherein, The control box can also have a wireless signal connection with a wireless switch, which is installed on the door panel or an adjacent wall.

8. The multi-functional horizontal sliding electric lifting fireproof smoke-proof automatic door as described in claim 1, wherein, This electronic control box is a computer-controlled automatic controller that uses a semiconductor chip. The speed of the door's movement and various functional requirements are stored within the chip. Depending on the usage requirements of different locations, a touch panel allows for wireless display of the function menu. Digital signals are used to control and fine-tune each function, ensuring accurate and stable travel, preventing people from being trapped or impacted, improving airtightness, increasing control precision, and significantly reducing the size, thus saving installation space. The digital display makes maintenance and repair easy, time-saving, and labor-saving, reducing the failure rate and extending the service life. In case of a malfunction, it can be remotely restarted.