Single fireproof door with embedded expansion sealing strips

Abstract

The utility model discloses a single-open fireproof door with embedded expansion sealing strips, which relates to the field of fireproof doors and comprises a door frame, a door body is rotatably connected to the inner side of the door frame through hinges, a supporting frame is formed in the door body, an installation mechanism is arranged in the door body, a door closer is fixedly installed at one end of the door frame, and the door closer is fixedly connected with the door frame. Handles used for grabbing are formed on the two sides of the door body correspondingly, and fireproof cotton is installed in the supporting frame. According to the utility model, the mounting mechanism is arranged, the C-shaped bolt is rotated to drive the rotating disc to rotate, and the C-shaped bolt is inserted into the slot through the connecting spring, so that the rotating disc is fixed; at the moment, in the rotating process of the rotating disc, the connecting arm is driven to rotate, the rotating arm pushes the connecting rod to move, and the reset spring extends, so that the mounting pieces connected with the connecting rod are moved out of the door body, the sealing strip is quickly mounted, and the assembling efficiency of the fireproof door is improved.

Description

Technical Field

[0001] The utility model relates to the field of fireproof doors, in particular to a single-opening fireproof door with a pre-buried expansion seal. Background Art

[0002] A fire door is a door that meets the requirements of fire resistance, stability, integrity and thermal insulation within a certain period of time. It is a fire-resistant partition with a certain fire resistance installed between fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the functions of ordinary doors, fire doors can also prevent the spread of fire and smoke. They can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel.

[0003] Fire doors prevent smoke from spreading by relying on the embedded expansion seals inside. When installing and fixing the embedded expansion seals, a whole strip of the embedded expansion seal is wrapped around the frame of the fire door. The embedded expansion seals are squeezed with special tools and then fixed to the fire door with glue. This installation method is more cumbersome, which affects the assembly efficiency of the fire door. Utility Model Content

[0004] The utility model aims to solve the problem that pre-embedded expansion seals are complicated and provide a single-opening fire door with pre-embedded expansion seals.

[0005] To achieve the above object, the utility model provides the following technical solution: a single-opening fire door with a pre-embedded expansion seal, comprising a door frame, the inner side of the door frame is rotatably connected to a door body through a hinge, a support frame is formed inside the door body, and an installation mechanism is arranged inside the door body, and the installation mechanism is used to install the expansion seal;

[0006] The mounting mechanism comprises a rotating disk, a rotating arm, a connecting rod, a return spring, a mounting piece, a sealing strip, a C-shaped latch, a connecting spring and a slot;

[0007] The rotating disk is rotatably connected to the inside of the door body, the four rotating arms are rotatably connected to one side of the rotating disk, and the connecting rod is rotatably connected to the movement of the rotating arm and vertically slidably connected to the inside of the support frame;

[0008] The two return springs are respectively sleeved on the outer wall of the connecting rod in the vertical direction and the two ends are respectively fixedly connected to the connecting rod and the support frame, the mounting piece is fixedly connected to one end of the connecting rod, and the sealing strip is slidably connected to the inside of the mounting piece;

[0009] The C-shaped latch is slidably connected to the inside of the other side of the rotating disk, the connecting spring is sleeved on the outer wall of one end of the C-shaped latch and the two ends are respectively fixedly connected to the C-shaped latch and the rotating disk, and the slot is opened inside the door body.

[0010] As a further solution of the utility model: a door closer is fixedly installed at one end of the door frame, the door closer is respectively connected to the door frame and the door body, and the door closer is used to automatically close the door body.

[0011] As a further solution of the utility model: handles for grasping are respectively formed on both sides of the door body.

[0012] As a further solution of the utility model: a T-shaped notch is formed inside the mounting piece, and a convex block matching the T-shaped notch is formed on the sealing strip;

[0013] The top of the sealing strip is formed into a curved surface.

[0014] As a further solution of the utility model: the elastic force of the reset spring is greater than the torsional force of the rotating disk, and the rigidity of the C-shaped latch is greater than the elastic force of the reset spring.

[0015] As a further solution of the utility model: fireproof cotton is installed inside the support frame.

[0016] As a further solution of the present invention: the slot and the C-shaped pin form an angle of 45 degrees.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] By setting up the installation mechanism, the rotating disk is driven to rotate by rotating the C-shaped pin, and the C-shaped pin is inserted into the slot through the connecting spring, so that the rotating disk is fixed; at this time, during the rotation of the rotating disk, the connecting arm is driven to rotate, and the rotating arm pushes the connecting rod to move, and the reset spring is extended, so that the installation parts connected to the connecting rod are moved out of the door body respectively, so that the sealing strip can be installed quickly to improve the assembly efficiency of the fire door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the door body of the utility model;

[0021] Figure 3 This is a schematic diagram of the installation mechanism structure of the utility model;

[0022] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model.

[0023] In the figure: 1. door frame; 2. hinge; 3. door body; 4. mounting mechanism; 401. rotating disk; 402. rotating arm; 403. connecting rod; 404. return spring; 405. mounting piece; 406. sealing strip; 407. C-type latch; 408. connecting spring; 409. slot; 5. door closer; 6. handle; 7. support frame. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4 In an embodiment of the utility model, a single-opening fire door with a pre-embedded expansion seal comprises a door frame 1, the inner side of the door frame 1 is rotatably connected to a door body 3 via a hinge 2, a support frame 7 is formed inside the door body 3, and an installation mechanism 4 is provided inside the door body 3, and the installation mechanism 4 is used to install the expansion seal;

[0026] The mounting mechanism 4 includes a rotating disk 401, a rotating arm 402, a connecting rod 403, a return spring 404, a mounting member 405, a sealing strip 406, a sealing strip 406, a C-shaped latch 407, a connecting spring 408 and a slot 409;

[0027] The rotating disk 401 is rotatably connected to the inside of the door body 3, the four rotating arms 402 are rotatably connected to one side of the rotating disk 401, and the connecting rod 403 is rotatably connected to the movement of the rotating arm 402 and vertically slidably connected to the inside of the support frame 7;

[0028] Two return springs 404 are respectively sleeved on the outer wall of the connecting rod 403 in the vertical direction and both ends are respectively fixedly connected to the connecting rod 403 and the support frame 7. The mounting member 405 is fixedly connected to one end of the connecting rod 403. The sealing strip 406 is slidably connected to the inside of the mounting member 405.

[0029] The C-shaped latch 407 is slidably connected to the inside of the other side of the rotating disk 401, the connecting spring 408 is sleeved on the outer wall of one end of the C-shaped latch 407 and the two ends are respectively fixedly connected to the C-shaped latch 407 and the rotating disk 401, and the slot 409 is opened inside the door body 3;

[0030] The mounting member 405 is formed with a T-shaped slot inside, and the sealing strip 406 is formed with a protrusion matching the T-shaped slot;

[0031] The top of the sealing strip 406 is formed into a curved surface;

[0032] The elastic force of the return spring 404 is greater than the torsional force of the rotating disk 401 , and the rigidity of the C-shaped latch 407 is greater than the elastic force of the return spring 404 ;

[0033] The slot 409 and the C-shaped pin 407 form an angle of 45 degrees.

[0034] In this embodiment: when the device is installing the embedded expansion seal, the rotating disk 401 is driven to rotate by rotating the C-shaped latch 407, and the C-shaped latch 407 is inserted into the slot 409 by connecting the spring 408, so that the rotating disk 401 is fixed;

[0035] At this time, the rotating disk 401 rotates, driving the connecting arm 402 to rotate, and the rotating arm 402 pushes the connecting rod 403 to move, and the return spring 404 is extended, so that the mounting parts 405 connected to the connecting rod 403 are respectively moved into the inside of the door body 3, so that the sealing strip 406 is quickly inserted through the T-shaped protrusions at the bottom of the sealing strip 406 that match the T-shaped notches inside the mounting parts 405, so that the sealing strip 406 is installed and fixed;

[0036] After the C-shaped latch 407 is pulled and released, the return spring 404 contracts and drives the mounting member 405 to return to its original position, and at the same time, the connecting rod 403 pushes the rotating arm 402, so that the rotating disk 401 rotates and returns to its original position quickly, and the mounting member 405 moves back into the door body 3, thereby completing the installation of the pre-buried expansion seal of the protective door;

[0037] The above components can quickly install the embedded expansion seal, thereby improving the assembly efficiency of the fire door;

[0038] Please refer to Figure 1 , 4 A door closer 5 is fixedly installed at one end of the door frame 1. The door closer 5 is respectively connected to the door frame 1 and the door body 3. The door closer 5 is used to automatically close the door body 3.

[0039] In this embodiment: when personnel fail to close the fire door, the door closer 3 can automatically close the fire door, thereby preventing the fire from spreading and the smoke from diffusing.

[0040] Please refer to Figure 1 , 4 , handles 6 for grasping are respectively formed on both sides of the door body 3.

[0041] In this embodiment: during the use of the fire door, the handle 6 assists personnel in opening and closing the door.

[0042] Please refer to Figure 2 , fireproof cotton is installed inside the support frame 7.

[0043] In this embodiment: when this structure is used for fire prevention, the fireproof cotton installed inside the support frame 7 can improve the fireproof effect of the fireproof door and prolong the time for the fire to spread.

[0044] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A single-opening fireproof door with a pre-buried expansion seal, comprising a door frame (1), the inner side of the door frame (1) is rotatably connected to a door body (3) via a hinge (2), a support frame (7) is formed inside the door body (3), and is characterized in that: The door body (3) is provided with a mounting mechanism (4) inside, and the mounting mechanism (4) is used to mount an expansion seal; The mounting mechanism (4) comprises a rotating disk (401), a rotating arm (402), a connecting rod (403), a return spring (404), a mounting member (405), a sealing strip (406), a C-shaped latch (407), a connecting spring (408) and a slot (409); The rotating disk (401) is rotatably connected to the inside of the door body (3), the four rotating arms (402) are rotatably connected to one side of the rotating disk (401), and the connecting rod (403) is rotatably connected to the movement of the rotating arms (402) and vertically slidably connected to the inside of the supporting frame (7); The two return springs (404) are respectively sleeved on the outer wall of the connecting rod (403) in the vertical direction and the two ends are respectively fixedly connected to the connecting rod (403) and the support frame (7); the mounting member (405) is fixedly connected to one end of the connecting rod (403); and the sealing strip (406) is slidably connected to the inside of the mounting member (405); The C-shaped latch (407) is slidably connected to the inside of the other side of the rotating disk (401), the connecting spring (408) is sleeved on the outer wall of one end of the C-shaped latch (407) and the two ends are respectively fixedly connected to the C-shaped latch (407) and the rotating disk (401), and the slot (409) is opened inside the door body (3).

2. A single-opening fire door with a pre-buried expansion seal according to claim 1, characterized in that: A door closer (5) is fixedly mounted on one end of the door frame (1); the door closer (5) is respectively connected to the door frame (1) and the door body (3); and the door closer (5) is used to automatically close the door body (3).

3. A single-opening fire door with a pre-buried expansion seal according to claim 1, characterized in that: Handles (6) for grasping are respectively formed on both sides of the door body (3).

4. A single-opening fire door with a pre-buried expansion seal according to claim 1, characterized in that: The mounting member (405) is internally formed with a T-shaped notch, and the sealing strip (406) is formed with a protrusion matching the T-shaped notch; The top of the sealing strip (406) is formed into a curved surface.

5. A single-opening fire door with a pre-buried expansion seal according to claim 1, characterized in that: The elastic force of the return spring (404) is greater than the torsional force of the rotating disk (401), and the rigidity of the C-shaped latch (407) is greater than the elastic force of the return spring (404).

6. A single-opening fire door with a pre-buried expansion seal according to claim 1, characterized in that: Fireproof cotton is installed inside the support frame (7).

7. A single-opening fire door with a pre-buried expansion seal according to claim 1, characterized in that: The slot (409) and the C-shaped latch (407) form an angle of 45 degrees.

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