Fireproof door with temperature sensing and locking functions

Abstract

The fireproof door with the temperature sensing and locking functions comprises a door frame, a fireproof door body and a door opening formed in a wall body, a hidden groove communicated with the door opening is formed in the wall body, the door frame is fixedly arranged on the inner wall face of the door opening in a calibration mode, a channel communicated with the hidden groove is formed in the door frame, and the hidden groove is communicated with the channel. The fireproof door is installed in the door frame through hinge pieces, sealing grooves are formed in the four side faces of the fireproof door and are communicated and combined to form a frame-shaped groove, U-shaped frames are arranged on the left side and the right side of the frame-shaped groove, and parts of the outer sides of the U-shaped frames extend into the channel. And a driving mechanism for driving the U-shaped frames to synchronously approach inwards or move outwards is mounted in the hidden groove. The fireproof door is simple in structure, a gap between the door frame and the fireproof door can be sealed, the sealing performance between the U-shaped frame and the sealing groove is improved through the first sealing strip, the sealing performance between the U-shaped frame and the ground is improved through the second sealing strip, and the U-shaped frame can be automatically closed.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, and particularly relates to a fire door with a temperature sensing locking function. Background Technique

[0002] A fire door refers to a door that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. It is a fire separation with a certain fire resistance set in fire compartments, evacuation stairwells, vertical shafts, etc.

[0003] At present, although the fire prevention effect of the fire door itself is better, the sealing performance between the fire door and the door frame is poor, and there are easy to appear gaps between the two, especially between the fire door and the ground, resulting in poor fire prevention effect of the fire door. Flames and smoke can conduct along the gaps, affecting the fire prevention quality. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a fire door with a temperature sensing locking function, and the sealing performance between the U-shaped frame that moves inward can ensure the sealing performance with the door frame, so as to solve the problems raised in the above background technique.

[0005] The utility model is realized by the following technical solutions: A fire door with a temperature sensing locking function, including a door frame, a fire door and a door opening provided on a wall. A hidden groove communicating with the door opening is formed inside the wall. The door frame is calibrated and fixed on the inner wall surface of the door opening. A channel communicating with the hidden groove is formed inside the door frame. The fire door is installed inside the door frame through a hinge. Sealing grooves are provided on all four sides of the fire door. The sealing grooves are connected and combined to form a frame-shaped groove. A U-shaped frame is arranged left and right in the middle of the frame-shaped groove. A part of the outside of the U-shaped frame extends into the channel. A driving mechanism for driving the U-shaped frame to move inward synchronously and / or move outward is installed in the hidden groove.

[0006] As a preferred technical solution, the driving mechanism includes a lead screw, a motor, a temperature sensor and a bearing. The bearing is embedded and installed on one side surface of the hidden groove. A lead screw hole is horizontally provided at the top of the U-shaped frame. The lead screw holes are arranged opposite to each other. The lead screw is threadedly connected to the opposite lead screw holes. One end of the lead screw is installed in the inner ring of the bearing. The rotating shaft of the motor is fixedly connected to the other end of the lead screw through a coupling. The motor is installed on the inner wall surface of the hidden groove through a fixing frame. The temperature sensor is installed on the inner wall surface of the door opening. The motor is controlled by the temperature sensor.

[0007] As a preferred technical solution, the width of the U-shaped frame matches the widths of the sealing groove and the channel. Both sides of the U-shaped frame are provided with U-shaped grooves, and first sealing strips matching therewith are installed in the U-shaped grooves. Grooves are provided on both sides of the bottom of the U-shaped plate, and second sealing strips are installed in the grooves. The bottom surfaces of the second sealing strips are in contact with the ground, and both sides of the first sealing strips are in contact with the inner side surfaces of the sealing grooves.

[0008] As a preferred technical solution, the width of the hidden groove matches the width of the U-shaped frame.

[0009] As a preferred technical solution, the U-shaped frame, the door frame and the fire protection code are all made of metal materials.

[0010] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple. After the U-shaped frame moves closer inward, it can be inserted into the sealing groove, thereby sealing the gap between the door frame and the fire door. The first sealing strip increases the sealing performance between the U-shaped frame and the sealing groove, and the second sealing strip increases the sealing performance between the U-shaped frame and the ground. Moreover, the U-shaped frame can automatically complete closing to ensure the use efficiency. At the same time, the U-shaped frame can enter the hidden groove, thus not affecting the opening and closing of the fire door. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 It is a bottom view of the present utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the present utility model after removing the wall body;

[0015] Figure 4 It is a schematic diagram of the structure of the present utility model after further removing the door frame;

[0016] Figure 5 It is a schematic diagram of the structure of the U-shaped frame in the present utility model.

[0017] Among them, 1. Fire door; 2. Door frame; 3. Wall body; 4. Temperature sensor; 5. Channel; 6. U-shaped frame; 7. Second sealing strip; 8. Hidden groove; 9. Lead screw; 10. Bearing; 11. Motor; 12. First sealing strip. Detailed Embodiments

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0020] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a fire door with a temperature-sensing locking function of the utility model comprises a door frame 2, a fire door 1 and a door opening arranged on a wall 3, a hidden groove 8 connected to the door opening is formed inside the wall 3, the door frame 2 is calibrated and fixed on the inner wall surface of the door opening, a channel 5 connected to the hidden groove 8 is formed inside the door frame 2, the fire door 1 is installed inside the door frame 2 through a hinge, sealing grooves are provided on the four sides of the fire door 1, the sealing grooves are connected and combined to form a frame-shaped groove, U-shaped frames 6 are provided on the left and right of the frame-shaped groove, a part of the outer side of the U-shaped frame 6 extends to the inside of the channel 5, and a driving mechanism for driving the U-shaped frame 6 to move inward or outward synchronously is installed in the hidden groove 8.

[0022] In this embodiment, the driving mechanism includes a screw rod 9, a motor 11, a temperature sensor 4 and a bearing 10. The bearing 10 is embedded and installed on one side of the hidden groove 8. The top of the U-shaped frame 6 is provided with screw rod holes in a transverse direction. The screw rod holes are arranged opposite to each other. The screw rod 9 is threadedly connected to the opposite screw rod holes. One end of the screw rod 9 is installed in the inner ring of the bearing 10. The rotating shaft of the motor 11 is fixedly connected to the other end of the screw rod 9 through a coupling. The motor 11 is installed on the inner wall surface of the hidden groove 8 through a fixing frame. The temperature sensor 4 is installed on the inner wall surface of the door opening. The motor 11 is controlled by the temperature sensor 4.

[0023] The temperature sensor is connected to the motor through a wire, and a controller is also installed. Once an abnormally high temperature in the outside world is detected, the temperature sensor converts the detected temperature into an electrical signal (such as resistance value, voltage or current), and sends it to the controller through a transmission medium. The controller receives the signal from the temperature sensor and processes it, which includes signal amplification, filtering and analog-to-digital conversion (if necessary) to convert the analog signal into a digital signal for the controller to process. The motor is started through the controller, and the number of rotation turns of the motor is controlled. The above is the prior art, so no detailed introduction will be made.

[0024] In this embodiment, the width of the U-shaped frame 6 matches the widths of the sealing groove and the channel 5. U-shaped grooves are provided on both sides of the U-shaped frame 6, and first sealing strips 12 that match them are installed in the U-shaped grooves. Grooves are provided on both sides of the bottom of the U-shaped plate, and second sealing strips 7 are installed in the grooves. The bottom surfaces of the second sealing strips 7 are in contact with the ground, and both sides of the first sealing strips 12 are in contact with the inner side surfaces of the sealing grooves.

[0025] In this embodiment, the width of the hidden groove 8 matches the width of the U-shaped frame 6, so that the U-shaped frame can fit with the hidden groove, increasing the stability of movement.

[0026] In this embodiment, the U-shaped frame 6, the door frame 2 and the fire protection code are all made of metal materials, increasing firmness and fire resistance.

[0027] Once a fire occurs outside, the temperature of the flame will be immediately detected by the temperature sensor, and the motor will be started immediately. The start of the motor drives the lead screw, and through the lead screw, the U-shaped frame can be synchronously driven to move inward along the hidden groove and the channel until it is inserted into the sealing groove of the fire door. After the U-shaped frames are in contact with each other, the U-shaped frames can seal between the door frame and the fire door. The first sealing strip increases the sealing between the U-shaped frame and the sealing groove, and the second sealing strip increases the sealing between the U-shaped frame and the ground, which can better play the role of fire prevention;

[0028] Among them, a control panel can be installed on the wall. When it is not necessary to lock, the motor can be reversely started through the control panel, and the U-shaped frame can be driven to move outward along the channel until it completely enters the hidden groove. After the U-shaped frame is removed from the sealing groove, the fire door will lose the blocking object for opening, so that the fire door can be opened and closed smoothly;

[0029] Among them, when the fire door is opened, the controller can control the motor to drive the U-shaped frame to move inward again, so that the U-shaped frame can be arranged in the door opening. At this time, the first sealing strip and the second sealing strip on the U-shaped frame can be directly exposed, so that the first sealing strip and the second sealing strip can be directly torn off and new first sealing strips and second sealing strips can be adhered to ensure the sealing effect.

[0030] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be thought of without creative work should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. A fire door with temperature sensing locking function, characterized in that: The invention comprises a door frame (2), a fire door (1) and a door opening arranged on a wall (3); a hidden groove (8) communicating with the door opening is formed inside the wall (3); the door frame (2) is calibrated and fixed on the inner wall surface of the door opening; a passage (5) communicating with the hidden groove (8) is formed inside the door frame (2); the fire door (1) is installed inside the door frame (2) through a hinge; sealing grooves are arranged on the four sides of the fire door (1); the sealing grooves are connected and combined to form a frame-shaped groove; a U-shaped frame (6) is arranged on the left and right of the frame-shaped groove; a part of the outer side of the U-shaped frame (6) extends to the inside of the passage (5); and a driving mechanism for driving the U-shaped frame (6) to synchronously move inward or outward is installed in the hidden groove (8).

2. The fire door with temperature sensing locking function according to claim 1, characterized in that: The driving mechanism comprises a screw rod (9), a motor (11), a temperature sensor (4) and a bearing (10). The bearing (10) is embedded and installed on a side surface of the hidden groove (8). The top of the U-shaped frame (6) is provided with screw rod holes in a transverse direction. The screw rod holes are arranged opposite to each other. The screw rod (9) is threadedly connected to the opposite screw rod holes. One end of the screw rod (9) is installed in the inner ring of the bearing (10). The rotating shaft of the motor (11) is fixedly connected to the other end of the screw rod (9) through a coupling. The motor (11) is installed on the inner wall surface of the hidden groove (8) through a fixing frame. The temperature sensor (4) is installed on the inner wall surface of the door opening. The motor (11) is controlled by the temperature sensor (4).

3. The fire door with temperature sensing locking function according to claim 1, characterized in that: The width of the U-shaped frame (6) matches the width of the sealing groove and the channel (5), U-shaped grooves are provided on both sides of the U-shaped frame (6), and first sealing strips (12) matching therewith are installed in the U-shaped grooves, grooves are provided on both sides of the bottom of the U-shaped plate, and second sealing strips (7) are installed in the grooves, the bottom surfaces of the second sealing strips (7) are arranged in contact with the ground, and both sides of the first sealing strip (12) are arranged in contact with the inner side surfaces of the sealing grooves.

4. The fire door with temperature sensing locking function according to claim 1, characterized in that: The width of the hidden groove (8) matches the width of the U-shaped frame (6).

5. The fire door with temperature sensing locking function according to claim 1, characterized in that: The U-shaped frame (6), the door frame (2) and the fireproof code are all made of metal materials.

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