Fireproof door with smoke blocking structure

By introducing a sealing component into the fire door, and using a drive unit and threaded rod to move the sealing component to slide and fit against the door body, the problem of smoke and dust passing through gaps is solved, thus improving the safety of the fire door.

CN223908103UActive Publication Date: 2026-02-13SUZHOU ESHINE ELEVATOR COMPONENTS
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Patent Information

Application Number
CN202520299447.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-02-13
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

The existing L-shaped fixing plate of the fire door creates a gap at the top of the frame, allowing smoke and dust to pass through and reducing the safety of the device.

Method used

The system employs a sealing assembly, including a drive unit, a threaded rod, and a seal. The drive unit rotates the threaded rod, and the seal slides along the slide rod to fit tightly against the door surface, effectively blocking smoke and dust.

Benefits of technology

This improved the fire door's ability to block smoke and dust, and enhanced the safety of the device.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223908103U_ABST
    Figure CN223908103U_ABST
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Abstract

The utility model discloses a fireproof door with a smoke blocking structure, and relates to the technical field of fireproof doors, the fireproof door comprises a frame, a sealing assembly is arranged on one side in the frame, the sealing assembly comprises a fixing piece, the fixing piece is fixed with one side in the frame, one side of the fixing piece is provided with a containing groove, and the containing groove is communicated with the frame. One side of the top of the storage groove penetrates through and is fixedly connected with a driving part, the output end of the driving part is fixedly connected with a threaded rod, the outer wall of the threaded rod is in threaded connection with a sealing part, the sealing part is slidably connected with the storage groove, the driving part is a self-locking motor, and the two ends of the interior of the storage groove are fixedly connected with sliding rods; according to the smoke blocking device, the threaded rod is driven to rotate by starting the driving piece, the threaded rod drives the sealing piece to slide to the surface of the door body along the sliding rod and the containing groove and be tightly attached to the surface of the door body, so that smoke is effectively blocked, and the use safety of the smoke blocking device is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to fireproof door technical field, more specifically, the utility model relates to a fireproof door with smoke and dust blocking structure. BACKGROUND

[0002] The fireproof door with smoke and dust blocking structure is a special fireproof door designed to prevent smoke and harmful gas diffusion during fire.

[0003] The existing patent (announcement number: CN222376350U) discloses a steel heat insulation fireproof door, which forms a water curtain through the spray head, can not only reduce the temperature, but also effectively isolate the fire source, reduce the direct contact of the flame to the surface of the fireproof door, and help to inhibit the speed of fire spread.

[0004] However, the above-mentioned device will cause gaps at the top of the frame when in use due to the setting of the L-shaped fixed plate, although it can inhibit the spread of fire, but the smoke and dust generated by combustion will shuttle from the gaps, reducing the use safety of the device.

[0005] Therefore, we propose a fireproof door with smoke and dust blocking structure to solve the above problems. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a fireproof door with smoke and dust blocking structure to solve the problem that the setting of the L-shaped fixed plate will cause gaps at the top of the frame, although it can inhibit the spread of fire, but the smoke and dust generated by combustion will shuttle from the gaps, reducing the use safety of the device.

[0007] In order to solve the above-mentioned technical problems, the utility model provides the following technical scheme: a fireproof door with smoke and dust blocking structure, comprising a frame, a sealing assembly is arranged on one side of the inside of the frame, the sealing assembly comprises a fixed part, the fixed part and one side of the inside of the frame are fixed, a receiving groove is formed on one side of the fixed part, a drive part penetrates and is fixedly connected on one side of the top of the receiving groove, the output end of the drive part is fixedly connected with a threaded rod, the outer wall of the threaded rod is threadedly connected with a sealing part, and the sealing part and the receiving groove are slidingly connected.

[0008] Preferably, the drive part is a self-locking motor.

[0009] Preferably, both ends of the inside of the receiving groove are fixedly connected with sliding rods, the sliding rods penetrate the sealing part and are slidingly connected therewith.

[0010] Preferably, one side of the fixed part, the receiving groove and the sealing part are all rectangular in cross section and are adapted to the frame.

[0011] Preferably, one end of the other side of the frame is fixedly connected with a pair of rotating shells, a door body is arranged between the rotating shells, one end of the door body is fixedly connected with a rotating shaft, the rotating shaft and the rotating shell are rotatably connected, a transmission groove is formed in the top of the frame, the top of the rotating shaft is fixedly connected with a gear, one end of the transmission groove is fixedly connected with a spring, one end of the spring is fixedly connected with a rack, and the gear and the rack are engaged.

[0012] Preferably, the top section of the transmission groove is T-shaped.

[0013] Preferably, the gear, the spring and the rack are arranged in the transmission groove, and the sealing element is arranged on the side close to the door body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model discloses a threaded rod is rotated by starting drive piece, and sealing element is slid along slide rod, storage groove to the door body surface and close fitting are slid to the effective barrier of smoke and dust, and the use safety of device is improved. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the axial view of the utility model;

[0017] Figure 2 It is the rear view of the utility model;

[0018] Figure 3 It is the sealing assembly structure diagram of the utility model;

[0019] Figure 4 It is the exploded view of the utility model;

[0020] Figure 5 It is the sectional view of the utility model.

[0021] [REFERENCE SIGNS]

[0022] 1, frame;2, sealing assembly;201, fixed part;202, storage groove;203, drive piece;204, threaded rod;205, slide rod;206, sealing element;3, rotating shell;4, door body;5, rotating shaft;6, gear;7, transmission groove;8, spring;9, rack. DETAILED DESCRIPTION

[0023] The control mode of the electrical element in the utility model is controlled by the external controller matched with it, and the control circuit can be realized by simple programming of the technical personnel in the field, which belongs to the common knowledge in the field, and only its use is explained, and it is not improved, and the utility model is mainly used for protecting mechanical devices, so the control mode and circuit connection are not explained in detail.

[0024] It is emphasized that in the present application, the frame 1 and the door body 4 are prior art disclosed in the publication number: CN222376350U.

[0025] In order to make the technical problems, technical solutions and advantages of the present application clearer, the following will be described in detail in combination with the drawings and specific embodiments.

[0026] As shown in the accompanying Figure 1 to the accompanying Figure 5 The embodiment of the present application provides a fireproof door with smoke and dust blocking structure, which comprises a frame 1, one side of the inside of the frame 1 is provided with a sealing assembly 2, the sealing assembly 2 comprises a fixing piece 201, one side of the fixing piece 201 is fixed with the inside of the frame 1, one side of the fixing piece 201 is provided with a receiving groove 202, one side of the top of the receiving groove 202 penetrates and is fixedly connected with a driving piece 203, the output end of the driving piece 203 is fixedly connected with a threaded rod 204, the outer wall of the threaded rod 204 is threadedly connected with a sealing piece 206, the sealing piece 206 and the receiving groove 202 are slidably connected, the driving piece 203 is a self-locking motor, both ends of the inside of the receiving groove 202 are fixedly connected with a sliding rod 205, the sliding rod 205 penetrates the sealing piece 206 and is slidably connected therewith, one side of the fixing piece 201, the receiving groove 202 and the sealing piece 206 are all rectangular in cross section and are matched with the frame 1.

[0027] Among them, the sealing piece 206 is made of elastic material such as rubber, and the fixing piece 201 is made of hard material such as steel.

[0028] In the embodiment, the driving piece 203 is started to drive the threaded rod 204 to rotate, the threaded rod 204 drives the sealing piece 206 to slide along the sliding rod 205 and the receiving groove 202 to the surface of the door body 4 and tightly adhere, so as to effectively block the smoke and dust and improve the use safety of the device.

[0029] One end of the other side of the inside of the frame 1 is fixedly connected with a pair of rotating shells 3, the door body 4 is arranged between the rotating shells 3, one end of the door body 4 is fixedly connected with a rotating shaft 5, the rotating shaft 5 is rotatably connected with the rotating shell 3, the top of the inside of the frame 1 is provided with a transmission groove 7, the top of the rotating shaft 5 is fixedly connected with a gear 6, one end of the transmission groove 7 is fixedly connected with a spring 8, one end of the spring 8 is fixedly connected with a rack 9, the gear 6 and the rack 9 are engaged, the top section of the transmission groove 7 is T-shaped, the gear 6, the spring 8 and the rack 9 are all arranged in the transmission groove 7, and the sealing piece 206 is arranged on the side close to the door body 4.

[0030] In this embodiment, when the door body 4 is opened, the door body 4 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the gear 6 to rotate, the gear 6 drives the rack 9 to move and compress the spring 8, when the door body 4 rotates to the end, the compressed spring 8 pushes the rack 9 to move, the rack 9 drives the gear 6 to rotate, at the same time, the gear 6 drives the rotating shaft 5 to rotate and automatically closes the door body 4, thereby improving the use convenience of the device.

[0031] The working process of the utility model is as follows:

[0032] Firstly, when the door body 4 is normally used, the cooperation between the gear 6, the spring 8 and the rack 9 can realize the normally closed door body 4, so that the fire spreading can be timely blocked when the fire occurs;

[0033] Then, when the fire occurs, the sealing piece 206 is driven to slide to the surface of the door body 4 and tightly fit by starting the driving part 203, so that the effective blocking of the smoke and dust is realized;

[0034] Then, the frame 1 and the door body 4 and the like structure made of steel can effectively block the fire spreading;

[0035] Finally, as shown in the announcement number: CN222376350U, the periodical inspection and maintenance of the device are completed.

[0036] Some points should be explained:

[0037] Firstly, in the description of the present application, it should be explained that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0038] Secondly: the utility model discloses the embodiment of the drawing, only relates to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0039] Finally: the above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fire door with a smoke barrier structure comprising a frame (1), characterized in that, One side of the frame (1) is provided with a sealing assembly (2), the sealing assembly (2) comprises a fixed part (201), the fixed part (201) and the one side of the frame (1) are fixed, one side of the fixed part (201) is provided with a receiving groove (202), the top of the receiving groove (202) is penetrated and fixedly connected with a driving part (203), the output end of the driving part (203) is fixedly connected with a threaded rod (204), the outer wall of the threaded rod (204) is threadedly connected with a sealing part (206), the sealing part (206) and the receiving groove (202) are slidably connected.

2. The fire door with a smoke dust barrier structure according to claim 1, wherein The driving part (203) is a self-locking motor.

3. The fire door with a smoke dust barrier structure according to claim 1, wherein Both ends of the receiving groove (202) are fixedly connected with a sliding rod (205), the sliding rod (205) penetrates the sealing part (206) and is slidably connected therewith.

4. The fire door with a smoke-dust barrier structure according to claim 1, wherein The fixed part (201), the receiving groove (202) and the sealing part (206) are all rectangular in cross section and are adapted to the frame (1).

5. The fire door with a smoke dust barrier structure according to claim 1, wherein One end of the other side of the frame (1) is fixedly connected with a pair of rotating shells (3), the rotating shells (3) are provided with a door body (4), one end of the door body (4) is fixedly connected with a rotating shaft (5), the rotating shaft (5) and the rotating shell (3) are rotatably connected, the top of the frame (1) is provided with a transmission groove (7), the top of the rotating shaft (5) is fixedly connected with a gear (6), one end of the transmission groove (7) is fixedly connected with a spring (8), one end of the spring (8) is fixedly connected with a rack (9), the gear (6) and the rack (9) are engaged.

6. The fire door with a smoke dust barrier structure according to claim 5, wherein The top of the transmission groove (7) is T-shaped in cross section.

7. The fire door with a smoke dust barrier structure according to claim 5, wherein The gear (6), the spring (8) and the rack (9) are all arranged in the transmission groove (7), and the sealing part (206) is arranged on the side close to the door body (4).

Citation Information

Patent Citations

  • Steel heat insulation fireproof door

    CN222376350U