Single fireproof door

Abstract

The utility model discloses a single-open fireproof door, which comprises a door frame, a door plate, a driving piston and an action piston, a communicating pipe is arranged between the driving piston and the action piston, the communicating pipe is respectively communicated with the driving piston and the action piston, and the action piston is provided with a movable plug strip. The movable plug strip abuts against the door frame and blocks a gap between the door frame and the door plate, the driving piston comprises a main piston cylinder and a main piston block, the main piston block is located in the main piston cylinder and slidably connected with the main piston cylinder, the communicating pipe communicates with the main piston cylinder, and the door plate is slidably connected with a lock pin clamped with the door frame. A linkage mechanism is arranged between the lock pin and the main piston block. The fireproof door has the advantages that the gap between the door frame and the door plate can be effectively reduced, the gap is small, smoke can be effectively prevented from penetrating through the gap of the fireproof door, and the survival probability of personnel in a fire disaster is effectively increased.

Description

Technical Field

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

[0002] Fire doors are common fire safety facilities in buildings, which can play a role in fire prevention and heat insulation in fire. When a fire occurs, a large amount of smoke is often produced, and the smoke in the fire can easily lead to suffocation accidents.

[0003] The Chinese utility model patent with announcement number CN214330434U discloses a single-opening fire door with a pre-embedded expansion seal, which includes a fire door frame and a fire door panel, the fire door panel is hinged to the fire door frame, the outer peripheral edge of the fire door frame is wrapped with a first fire expansion seal, an automatic door closing device is arranged between the upper part of the fire threshold and the upper part of the fire door panel, and a door lock is arranged on the side of the fire door panel away from the hinge axis between itself and the fire door frame. More escape time is gained for personnel to escape, thereby improving the safety protection performance of the fire door.

[0004] In existing fire doors, there is often a large gap between the door panel and the door frame. Although the fire door can play a role in heat insulation and prevent the spread of fire, the smoke generated by the fire will pass through the gap of the fire door in large quantities, which will have a serious impact on the safety and escape of personnel. Therefore, the fire door in the prior art has a technical problem of a large gap. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a single-opening fire door, which includes a door frame, a door panel, an active piston and an action piston. The single-opening fire door has the advantage of a smaller gap.

[0006] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0007] A single-opening fireproof door comprises a door frame, a door panel, an active piston and an action piston, wherein the door panel can be rotatably mounted on the door frame, the active piston and the action piston are mounted on the door panel, a connecting pipe is provided between the active piston and the action piston, the connecting pipe is respectively connected with the active piston and the action piston, the action piston is provided with an active plug strip, the active plug strip is slidably connected with the door panel, the active plug strip abuts against the door frame and blocks the gap between the door frame and the door panel, the active piston comprises a main piston cylinder and a main piston block, the main piston block is located in the main piston cylinder and is slidably connected with the main piston cylinder, the connecting pipe is connected with the main piston cylinder, the door panel is slidably connected with a lock pin engaged with the door frame, and a linkage mechanism is provided between the lock pin and the main piston block.

[0008] Through such a setting: the gap between the door frame and the door panel can be effectively reduced, achieving the advantage of a smaller gap. It can effectively prevent smoke from passing through the gap of the fire door, effectively increasing the chance of survival of people in a fire.

[0009] Preferably, the linkage mechanism includes a driving gear, a driven rack, a fan gear and a linkage rack. The door panel is rotatably connected to a rotating shaft, the rotating shaft is fixedly connected to a handle, the driving gear is fixedly installed on the rotating shaft, the driven rack is fixedly connected to a locking pin, the driving gear is meshed with the driven rack, the fan gear is fixedly connected to the driving gear, the linkage rack is fixedly connected to the main piston block, and the fan gear is meshed with the linkage rack.

[0010] Through such an arrangement, the linkage mechanism can simultaneously drive the lock pin and the main piston block to move.

[0011] Preferably, the diameter of the sector gear is greater than the diameter of the driving gear.

[0012] Through such an arrangement, it can be ensured that the main piston block can press enough air into the action piston, thereby ensuring that the action piston can push the movable plug strip close to the door frame, thereby ensuring the sealing of the movable plug strip.

[0013] Preferably, the door panel is fixedly connected to a support block, and an elastic member is provided between the support block and the driven rack.

[0014] Such an arrangement can prevent the lock pin from accidentally sliding out of the door frame, thereby improving the reliability of the lock pin.

[0015] Preferably, the driven rack is fixedly connected to a guide rod, the guide rod is passed through the support block, the elastic member is a spring whose two ends are respectively abutted against the driven rack and the support block, and the spring is sleeved on the guide rod.

[0016] Through such an arrangement, the function of driving the driven rack and the lock pin to move toward the door frame is achieved through the driving member.

[0017] Preferably, the action piston comprises a secondary piston cylinder and a secondary piston block, the secondary piston block is located in the secondary piston cylinder and is slidably connected to the secondary piston cylinder, the connecting pipe is connected to the secondary piston cylinder, and the movable plug is fixedly connected to the secondary piston block.

[0018] Through such an arrangement, the function of driving the movable plug strip to move is achieved through the action piston.

[0019] Preferably, the door frame is provided with a first slot for the movable plug strip to be inserted into.

[0020] Through such an arrangement: the smoke flowing through the door gap is further reduced.

[0021] Preferably, the door panel is fixedly connected with a fixed plug strip, and the door frame is provided with a second slot for the fixed plug strip to be inserted into.

[0022] Through such an arrangement, the gap between the door frame and the door panel can be effectively reduced, achieving the advantage of a smaller gap.

[0023] Preferably, the fixed plug strip is fitted with one end of the movable plug strip, the door frame is provided with an avoidance groove for the fixed plug strip to pass through, and the avoidance groove is communicated with the movable plug strip.

[0024] Through such an arrangement, the fixed plug strip is prevented from being stuck by the door frame when the door panel is rotated on the door frame.

[0025] Preferably, a plurality of the actuating pistons are provided, and the plurality of actuating pistons face different directions respectively.

[0026] Through such a setting, door gaps at different positions can be blocked.

[0027] Compared with the prior art, the utility model has achieved beneficial technical effects:

[0028] When the door is closed, the main piston block is driven to move toward the inside of the main piston cylinder through the linkage mechanism, and the air in the main piston cylinder is squeezed into the action piston through the ventilation pipe, so that the action piston extends and drives the active plug to extend out of the door, so that the active plug abuts against the door frame and blocks the gap between the door frame and the door, thereby effectively reducing the gap between the door frame and the door, achieving the advantage of a smaller gap. It can effectively prevent smoke from passing through the gap of the fire door, and effectively improve the chance of survival of people in a fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a single-opening fire door in an embodiment of the utility model;

[0030] Figure 2 This is a schematic diagram of the internal structure of the door panel in the embodiment of the utility model;

[0031] Figure 3 It is a structural schematic diagram of the first card slot and the second card slot in an embodiment of the utility model.

[0032] The technical features indicated by the reference numerals are as follows:

[0033] 11. Door frame; 12. First card slot; 13. Second card slot; 14. Avoidance slot; 21. Door panel; 22. Connecting pipe; 23. Movable plug strip; 24. Lock pin; 25. Fixed plug strip; 31. Active piston; 32. Main piston cylinder; 33. Main piston block; 41. Action piston; 42. Sub-piston cylinder; 43. Sub-piston block; 51. Active gear; 52. Driven rack; 53. Fan gear; 54. Linkage rack; 55. Rotating shaft; 56. Handle; 57. Support block; 58. Elastic member; 59. Guide rod. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments, but the scope of protection claimed in the utility model is not limited to the following specific embodiments.

[0035] refer to Figure 1 , Figure 2 and Figure 3 A single-opening fireproof door includes a door frame 11, a door panel 21, an active piston 31 and an action piston 41. The door panel 21 can be rotatably mounted on the door frame 11. The active piston 31 and the action piston 41 are mounted inside the door panel 21. A connecting pipe 22 is provided between the active piston 31 and the action piston 41. The connecting pipe 22 is respectively connected to the active piston 31 and the action piston 41. A plurality of action pistons 41 are provided, and the plurality of action pistons 41 face different directions. The action piston 41 is provided with an active plug strip 23. The active plug strip 23 is slidably connected to the door panel 21. The action piston 41 includes a secondary piston cylinder 42 and a secondary piston block 43. The secondary piston block 43 is located in the secondary piston cylinder 42 and is slidably connected to the secondary piston cylinder 42. The connecting pipe 22 is connected to the secondary piston cylinder 42. The active plug strip 23 is fixedly connected to the secondary piston block 43. The movable plug strip 23 abuts against the door frame 11 and blocks the gap between the door frame 11 and the door panel 21. The active piston 31 includes a main piston cylinder 32 and a main piston block 33. The main piston block 33 is located in the main piston cylinder 32 and is slidably connected to the main piston cylinder 32. The connecting pipe 22 is connected to the main piston cylinder 32. The door frame 11 is provided with a first card slot 12 for the movable plug strip 23 to be inserted into. The door panel 21 is fixedly connected with a fixed plug strip 25, and the door frame 11 is provided with a second card slot 13 for the fixed plug strip 25 to be inserted into. The fixed plug strip 25 is fitted with one end of the movable plug strip 23, and the door frame 11 is provided with an avoidance groove 14 for the fixed plug strip 25 to pass through, and the avoidance groove 14 is connected to the movable plug strip 23. The door panel 21 is slidably connected with a lock pin 24 that is engaged with the door frame 11.

[0036] A linkage mechanism is provided between the lock pin 24 and the main piston block 33, and the linkage mechanism includes a driving gear 51, a driven rack 52, a sector gear 53 and a linkage rack 54. The door panel 21 is rotatably connected to a rotating shaft 55, and the rotating shaft 55 is fixedly connected to a handle 56. The driving gear 51 is fixedly mounted on the rotating shaft 55, the driven rack 52 is fixedly connected to the lock pin 24, the driving gear 51 is meshed with the driven rack 52, the sector gear 53 is fixedly connected to the driving gear 51, and the linkage rack 54 is fixedly connected to the main piston block 33, and the sector gear 53 is meshed with the linkage rack 54. The diameter of the sector gear 53 is larger than the diameter of the driving gear 51. The door panel 21 is fixedly connected to a support block 57, and an elastic member 58 is provided between the support block 57 and the driven rack 52. The driven rack 52 is fixedly connected with a guide rod 59 , which penetrates the support block 57 . The elastic member 58 is a spring with two ends respectively abutting against the driven rack 52 and the support block 57 , and the spring is sleeved on the guide rod 59 .

[0037] The door panel 21 rotates on the door frame 11 . When the door panel 21 and the door frame 11 are closed, the door panel 21 is in a closed state. When the door panel 21 and the door frame 11 are offset, the door panel 21 is in an open state, thereby realizing the opening and closing of the door panel 21 .

[0038] This embodiment has the following advantages:

[0039] When the door panel 21 is closed, the main piston block 33 is driven to move toward the inside of the main piston cylinder 32 through the linkage mechanism, and the air in the main piston cylinder 32 is squeezed into the action piston 41 through the ventilation pipe, so that the action piston 41 is extended and drives the active plug 23 to extend out of the door panel 21, so that the active plug 23 abuts against the door frame 11 and blocks the gap between the door frame 11 and the door panel 21, thereby effectively reducing the gap between the door frame 11 and the door panel 21, achieving the advantage of a smaller gap. It can effectively prevent smoke from passing through the gap of the fire door, and effectively improve the survival rate of people in a fire.

[0040] The handle 56 is turned, and the handle 56 drives the rotating shaft 55 and the driving gear 51 to rotate, and the driving gear 51 drives the driven rack 52 meshing therewith to move, thereby driving the lock pin 24 to slide through the driven rack 52. The lock pin 24 slides toward the door frame 11 and engages with the door frame 11, realizing the function of locking the door panel 21 on the door frame 11, and the lock pin 24 slides in a direction away from the door frame 11, so that the state of the lock pin 24 engaging with the door frame 11 is released, so that the door panel 21 can be rotated on the door frame 11.

[0041] When the driving gear 51 drives the lock pin 24 to move toward the door frame 11, the sector gear 53 is driven to rotate. During the rotation process, the sector gear 53 drives the linkage rack 54 meshing therewith to move. The linkage rack 54 drives the main piston block 33 to move toward the inside of the main piston cylinder 32, thereby driving the lock pin 24 to lock the door panel 21 and driving the active plug 23 to block the gap between the door frame 11 and the door panel 21. The linkage mechanism realizes the function of driving the lock pin 24 and the main piston block 33 to move at the same time.

[0042] The diameter of the sector gear 53 is greater than the diameter of the driving gear 51, so that the movement stroke of the main piston block 33 can be greater than the movement stroke of the lock pin 24, thereby ensuring that the main piston block 33 can press enough air into the action piston 41, and then ensuring that the action piston 41 can push the active plug strip 23 close to the door frame 11, thereby ensuring the sealing of the active plug strip 23.

[0043] When the lock pin 24 is engaged with the door frame 11 , the elastic member 58 exerts elastic force on the driven rack 52 , so that the driven rack 52 and the lock pin 24 tend to move toward the door frame 11 , preventing the lock pin 24 from accidentally sliding out of the door frame 11 , thereby improving the reliability of the lock pin 24 .

[0044] The guide rod 59 can guide the expansion and contraction direction of the spring, ensure the reliability of the spring during the movement, and realize the function of driving the driven rack 52 and the lock pin 24 to move toward the door frame 11 through the driving member.

[0045] When the air in the connecting pipe 22 enters the auxiliary piston cylinder 42 , the auxiliary piston block 43 can be pushed by the air, thereby realizing the function of driving the movable plug 23 to move through the action piston 41 .

[0046] By inserting the movable plug strip 23 into the first card slot 12, the sealing between the movable plug strip 23 and the door frame 11 can be effectively improved, and the smoke flowing through the door gap can be further reduced.

[0047] The fixed plug strip 25 is inserted into the second slot 13, and the gap between the door panel 21 and the door frame 11 is blocked by the fixed plug strip 25, thereby reducing the gap between the door frame 11 and the door panel 21, thereby effectively reducing the gap between the door frame 11 and the door panel 21, achieving the advantage of a smaller gap.

[0048] The fixed plug strip 25 and one end of the movable plug strip 23 fit together to reduce the gap. The avoidance groove 14 is provided to prevent the fixed plug strip 25 from being stuck by the door frame 11 when the door panel 21 rotates on the door frame 11.

[0049] The plurality of action pistons 41 drive different movable plugs 23 at different positions to abut against the door frame 11 , thereby blocking door gaps at different positions.

[0050] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A single-opening fire door, characterized in that: The invention comprises a door frame (11), a door plate (21), an active piston (31) and an actuating piston (41); the door plate (21) is rotatably mounted on the door frame (11); the active piston (31) and the actuating piston (41) are mounted on the door plate (21); a connecting pipe (22) is provided between the active piston (31) and the actuating piston (41); the connecting pipe (22) is respectively connected to the active piston (31) and the actuating piston (41); the actuating piston (41) is provided with an active plug strip (23); the active plug strip (23) is connected to the door plate (21) and the actuating piston (41) is connected to the door plate (21) and the actuating piston (41) is connected to the door plate (21) and the actuating piston (41) is connected to the door plate (21) and the actuating piston (31) is connected to the actuating piston (4 ... actuating piston (41) and the actuating piston (31) is connected to the actuating piston (41) and the actuating piston (41) is connected to the actuating piston (41) and the actuating piston (31) is connected to the actuating piston (4 The movable plug strip (23) is slidably connected with the door frame (11) and blocks the gap between the door frame (11) and the door panel (21); the active piston (31) comprises a main piston cylinder (32) and a main piston block (33); the main piston block (33) is located in the main piston cylinder (32) and is slidably connected with the main piston cylinder (32); the connecting pipe (22) is connected with the main piston cylinder (32); the door panel (21) is slidably connected with a lock pin (24) engaged with the door frame (11); and a linkage mechanism is provided between the lock pin (24) and the main piston block (33).

2. The single-opening fire door according to claim 1, characterized in that: The linkage mechanism comprises a driving gear (51), a driven rack (52), a sector gear (53) and a linkage rack (54); the door panel (21) is rotatably connected to a rotating shaft (55); the rotating shaft (55) is fixedly connected to a handle (56); the driving gear (51) is fixedly mounted on the rotating shaft (55); the driven rack (52) is fixedly connected to a lock pin (24); the driving gear (51) is meshed with the driven rack (52); the sector gear (53) is fixedly connected to the driving gear (51); the linkage rack (54) is fixedly connected to a main piston block (33); and the sector gear (53) is meshed with the linkage rack (54).

3. The single-opening fire door according to claim 2, characterized in that: The diameter of the sector gear (53) is greater than the diameter of the driving gear (51).

4. The single-opening fire door according to claim 2, characterized in that: The door panel (21) is fixedly connected to a support block (57), and an elastic member (58) is provided between the support block (57) and the driven rack (52).

5. The single-opening fire door according to claim 4, characterized in that: The driven rack (52) is fixedly connected to a guide rod (59), the guide rod (59) is inserted into the support block (57), the elastic member (58) is a spring with two ends respectively abutting against the driven rack (52) and the support block (57), and the spring is sleeved on the guide rod (59).

6. The single-opening fire door according to claim 1, characterized in that: The action piston (41) comprises a secondary piston cylinder (42) and a secondary piston block (43); the secondary piston block (43) is located in the secondary piston cylinder (42) and is slidably connected to the secondary piston cylinder (42); the connecting pipe (22) is connected to the secondary piston cylinder (42); and the movable plug strip (23) is fixedly connected to the secondary piston block (43).

7. The single-opening fire door according to claim 1, characterized in that: The door frame (11) is provided with a first slot (12) for the movable plug strip (23) to be inserted into.

8. The single-opening fire door according to claim 1, characterized in that: The door panel (21) is fixedly connected to a fixed plug strip (25), and the door frame (11) is provided with a second card slot (13) for the fixed plug strip (25) to be carded into.

9. The single-opening fire door according to claim 8, characterized in that: The fixed plug strip (25) is fitted with one end of the movable plug strip (23); the door frame (11) is provided with a relief groove (14) for the fixed plug strip (25) to pass through; the relief groove (14) is communicated with the movable plug strip (23).

10. The single-opening fire door according to claim 1, characterized in that: A plurality of the actuating pistons (41) are provided, and the plurality of actuating pistons (41) face different directions respectively.

Images