Safety fireproof door

Abstract

The invention relates to the field of doors, in particular to a safety fireproof door which comprises a door body frame with one end used for installing hinges and a door lock installed at the other end of the door body frame, an inner door hole is formed in the middle of the door body frame in a penetrating mode, a transverse shaft is transversely arranged on the lower portion of the door body frame in a penetrating mode, and an inner door body is arranged in the inner door hole; the lower end of the inner door body rotates on the transverse shaft through the transverse hole, and a locking mechanism is installed between the upper end of the inner door body and the door body frame. The transverse hole is in a long hole shape, and the lower ends of the front side and the rear side of the inner door body are both provided with fillets. The locking mechanism comprises a groove formed in the upper end of the inner door body, a round head block is arranged in the groove in a sliding mode, a semicircular groove is formed in the position, opposite to the round head block, of the door body frame, and a spring I is arranged between the groove and the round head block so that the round head block can abut against the semicircular groove in a matched mode. When a fire disaster occurs, the fire-fighting escape device can be forwards or backwards toppled on the ground, so that an escape road surface is formed, and the situation that flames exist on the ground, and passing is affected is avoided.

Description

Technical Field

[0001] The invention relates to the field of doors, in particular to a safety fireproof door. Background Art

[0002] Most of the doors used on buildings are fire doors. However, even though they are fire doors, if there are other materials or objects around the door, the fire will ignite the surrounding materials, causing combustion around the door. At this time, although there is no fire on the entire fire door, there may still be burning materials on the ground on the front and back sides of the door, making it impossible for people who need to escape through the fire door to pass through. Summary of the invention

[0003] The purpose of the present invention is to provide a safety fire door which can be tilted forward or backward onto the ground in the event of a fire, thereby forming an escape route and thereby avoiding the presence of flames on the ground that would affect passage.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A safety fireproof door comprises a door frame with a hinge installed at one end, and a door lock installed at the other end of the door frame, an inner door hole is penetrated through the middle of the door frame, a transverse axis is penetrated horizontally through the lower part of the door frame, an inner door body is arranged in the inner door hole, the lower end of the inner door body is rotated on the transverse axis through the transverse hole, and a locking mechanism is installed between the upper end of the inner door body and the door frame.

[0006] The transverse hole is in the shape of an elongated hole, and the lower ends of the front and rear sides of the inner door body are both provided with chamfers.

[0007] The locking mechanism includes a groove arranged at the upper end of the inner door body, a round head block slides in the groove, a semicircular groove is arranged at the door body frame relative to the round head block, and a spring I is arranged between the groove and the round head block so that the round head block cooperates and presses against the semicircular groove.

[0008] A limiting hole is arranged in the middle of the round head block, a limiting plate is slidably arranged in the limiting hole, and two limiting plates are both fixed in the groove.

[0009] A locking rod is slidably penetrated in the middle of the round head block, and a locking hole is arranged at the upper end of the door body frame, in which the locking rod slides.

[0010] A thread-through hole is provided on the door frame, and the thread-through hole passes through the locking hole. A fishing line passing through the locking rod is provided in the thread-through hole.

[0011] A wire groove is arranged around the middle of the door frame, and the fishing line passes through the wire groove in a ring shape.

[0012] A tension spring is arranged between the locking rod and the limiting hole.

[0013] The left and right side surfaces of the inner door hole are provided with strip grooves, and multiple nozzles are evenly arranged in the strip grooves. A water cavity is provided on the door frame corresponding to the strip groove, and a water bag connected with the multiple nozzles on the corresponding side is provided in the water cavity. An air cavity is connected on the door frame below the two water cavities, and partitions are slid in the two air cavities. A pin that passes through the door frame is fixed on the partition. A spring II is provided between the partition and the door frame to hold the pin against the side of the inner door body.

[0014] Four guard plates are fixed on the door frame and are used to block the water cavity and the air cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 and Figure 2 It is a structural diagram of a safety fire door;

[0016] Figure 3 It is a schematic diagram of the side section of the middle part of the safety fire door;

[0017] Figure 4 It is a schematic diagram of the structure when the safety fire door is dumped to form a road surface;

[0018] Figure 5 It is a structural diagram of the door frame;

[0019] Figure 6 It is a structural schematic diagram of the inner door body;

[0020] Figure 7 It is a schematic diagram of the structure of the round head block;

[0021] Figure 8 It is a schematic diagram of the structure of the locking rod and the fishing line;

[0022] Fig. 9 It is a schematic diagram of the structure of the partition.

[0023] In the figure:

[0024] Door frame 101; door lock 102; inner door hole 103; horizontal axis 104; semicircular groove 105; locking hole 106; through-line hole 107; wire groove 108; strip groove 109; nozzle 110; water cavity 111; air cavity 112; guard plate 113;

[0025] Inner door body 201; transverse hole 202; groove 203; limiting plate 204;

[0026] Round head block 301; limiting hole 302; spring I 303; tension spring 304; locking rod 305; fishing line 306;

[0027] Partition plate 401; latch 402; spring II 403. DETAILED DESCRIPTION

[0028] like Figure 1-9As shown, the safety fire door is described in detail:

[0029] A safety fireproof door comprises a door frame 101 with a hinge installed at one end, and a door lock 102 installed at the other end of the door frame 101, an inner door hole 103 is penetrated through the middle of the door frame 101, a horizontal axis 104 is penetrated horizontally through the lower part of the door frame 101, an inner door body 201 is arranged in the inner door hole 103, the lower end of the inner door body 201 is rotated on the horizontal axis 104 through the horizontal hole 202, and a locking mechanism is installed between the upper end of the inner door body 201 and the door frame 101.

[0030] The door frame 101 is a rectangular frame, with a rectangular inner door hole 103 in the center, and the left and right sides of the door frame 101 are wider, one side is used to install hinges, and the other side is used to install door locks 102, and the wider parts of the left and right sides of the door frame 101 are used to set water chambers 111 and air chambers 112; at the same time, the inner door body 201 is set in the inner door hole 103, so that the door frame 101 and the inner door body 201 form a complete door body, which is rotatably connected to the door frame through hinges, and forms a closed and locked state with the door frame through the door lock 102;

[0031] In case of fire, the door body is in a locked state, the locking mechanism can be opened, and then the inner door body 201 can be directly pushed to rotate the inner door body 201 on the horizontal axis 104 and then tip to the ground. At this time, the inner door hole 103 is opened, and people can pass through the door body through the inner door hole 103 and step on the pedal road surface paved by the inner door body 201 to pass quickly, while avoiding the presence of flames on the ground that prevent people from passing through.

[0032] When the door is open, you can directly observe the situation on the front and rear sides of the door. If you can pass through directly, you can pass through directly. If there is a fire on the ground and you cannot pass through, lock the door and perform the above operations when the door is in the locked state.

[0033] Further:

[0034] The transverse hole 202 is configured as a long hole, and the lower ends of the front and rear sides of the inner door body 201 are both chamfered.

[0035] This facilitates the inner door body 201 to rotate to a dumping state.

[0036] like Figure 5-8 As shown:

[0037] The locking mechanism includes a groove 203 arranged at the upper end of the inner door body 201, and a round head block 301 slides in the groove 203. The door body frame 101 is provided with a semicircular groove 105 relative to the round head block 301. A spring I303 is provided between the groove 203 and the round head block 301, so that the round head block 301 cooperates to tighten the semicircular groove 105.

[0038] Through the elastic force of spring I 303, the round head block 301 is pushed to slide upward in the groove 203 and into the semicircular groove 105. Through the cooperation between the semicircular head at the upper end of the round head block 301 and the semicircular groove 105, mutual limitation is formed between the round head block 301 and the door frame 101, and then the inner door body 201 is limited in the inner door hole 103. When a fire occurs and it is necessary to pass through, the inner door body 201 is directly hit, so that the round head block 301 can slide out of the semicircular groove 105, thereby causing the inner door body 201 to tip over and then pass through.

[0039] Further:

[0040] A limiting hole 302 is provided in the middle of the round head block 301 , and a limiting plate 204 is slidably arranged in the limiting hole 302 . Both limiting plates 204 are fixed in the groove 203 .

[0041] A locking rod 305 is slidably passed through the middle of the round head block 301 , and a locking hole 106 is provided at the upper end of the door frame 101 , in which the locking rod 305 slides.

[0042] The door frame 101 is provided with a thread-through hole 107 , which passes through the locking hole 106 . A fishing line 306 passing through the locking rod 305 is arranged in the thread-through hole 107 .

[0043] The locking rod 305 is located in the round head block 301 and the locking hole 106 at the same time, so as to limit the position between the round head block 301 and the door frame 101, thereby ensuring the protective function of the door body;

[0044] When a fire occurs, when the flame burns at the upper end of the door body, the fishing line 306 will be burned, and then the locking rod 305 will automatically fall and slide out of the locking hole 106 by its own gravity, thereby automatically releasing the limit between the round head block 301 and the door frame 101, so that it can directly hit the inner door body 201, causing the inner door body 201 to topple over.

[0045] Further:

[0046] A wire groove 108 is formed around the middle of the door frame 101 , and the fishing line 306 passes through the wire groove 108 in a ring shape.

[0047] By setting the wire groove 108, the fishing line 306 is protected to prevent the fishing line from being scratched by external objects. At the same time, by making the fishing line 306 pass through the wire groove 108 in a ring shape, the passing range of the fishing line is increased, making it easier to be burned by flames, so that the locking rod 305 automatically falls and slides out of the locking hole 106 by its own gravity, thereby automatically releasing the limit between the round head block 301 and the door frame 101.

[0048] Further:

[0049] By providing a tension spring 304 between the locking rod 305 and the limiting hole 302 , it is prevented that after the fishing line 306 is disconnected, the locking rod 305 cannot slide out of the locking hole 106 , thereby affecting the release of the limiting between the round head block 301 and the door frame 101 .

[0050] like Fig. 9 As shown:

[0051] The left and right side surfaces of the inner door hole 103 are both provided with strip grooves 109, and a plurality of nozzles 110 are evenly arranged in the strip grooves 109; a water cavity 111 is provided on the door frame 101 corresponding to the strip grooves 109, and a water bag connected to the plurality of nozzles 110 on the corresponding side is provided in the water cavity 111; an air cavity 112 is connected on the door frame 101 below the two water cavities 111, and partitions 401 are slid in the two air cavities 112, and a latch 402 passing through the door frame 101 is fixed on the partition 401; a spring II 403 is provided between the partition 401 and the door frame 101 to make the latch 402 press against the side of the inner door body 201.

[0052] Four guard plates 113 are fixed on the door frame 101 to seal the water cavity 111 and the air cavity 112 .

[0053] Among them, the partition 401 divides the air cavity 112 into two parts, one part of which is filled with a substance through a film, and the other part is filled with another substance through a film. When the inner door body 201 is tilted, the latch 402 loses the limit block, and the spring II 403 will push the partition 401 to move, so that the two parts are connected and the two films are opened, and then the two substances are contacted and reacted to produce a large amount of gas, which enters the water cavity 111 and squeezes the water bag, so that the water in the water bag is pressurized and sprayed out through the nozzle 110, thereby extinguishing the flame at the door body and cooling it down, making it easier for people to pass.

[0054] Wherein, the two reaction substances can be hydrochloric acid and sodium bicarbonate; aluminum sulfate and sodium bicarbonate;

[0055] The film opening containing the substance is squeezed by the partition 401 and remains closed. When the partition 401 moves, the film opening opens, allowing the two substances to contact and react.

Claims

1. A safety fire door, characterized by: It comprises a door frame (101) with one end for mounting a hinge, and A door lock (102) is installed at the other end of the door frame (101), wherein an inner door hole (103) is provided through the middle of the door frame (101), and a transverse axis (104) is provided transversely through the lower part of the door frame (101), an inner door body (201) is provided in the inner door hole (103), the lower end of the inner door body (201) is rotated on the transverse axis (104) through the transverse hole (202), and a locking mechanism is installed between the upper end of the inner door body (201) and the door frame (101).

2. A safety fire door according to claim 1, characterized in that: The transverse hole (202) is in the shape of an elongated hole, and the lower ends of the front and rear sides of the inner door body (201) are both chamfered.

3. A safety fire door according to claim 1, characterized in that: The locking mechanism comprises a groove (203) arranged at the upper end of the inner door body (201), a round head block (301) sliding in the groove (203), a semicircular groove (105) being arranged on the door body frame (101) relative to the round head block (301), and a spring I (303) being arranged between the groove (203) and the round head block (301) so that the round head block (301) cooperates with and presses against the semicircular groove (105).

4. A safety fire door according to claim 3, characterized in that: A limiting hole (302) is provided in the middle of the round head block (301), a limiting plate (204) is slidably arranged in the limiting hole (302), and both limiting plates (204) are fixed in the groove (203).

5. A safety fire door according to claim 4, characterized in that: A locking rod (305) is slidably passed through the middle of the round head block (301), and a locking hole (106) is provided at the upper end of the door frame (101), and the locking rod (305) slides in the locking hole (106).

6. A safety fire door according to claim 5, characterized in that: The door frame (101) is provided with a thread-through hole (107), the thread-through hole (107) passes through the locking hole (106), and a fishing line (306) passing through the locking rod (305) is provided in the thread-through hole (107).

7. A safety fire door according to claim 6, characterized in that: A wire groove (108) is arranged around the middle of the door frame (101), and the fishing line (306) passes through the wire groove (108) in a ring shape.

8. A safety fire door according to claim 7, characterized in that: A tension spring (304) is provided between the locking rod (305) and the limiting hole (302).

9. A safety fire door according to claim 1, characterized in that: The left and right side surfaces of the inner door hole (103) are both provided with strip grooves (109), and a plurality of nozzles (110) are evenly arranged in the strip grooves (109). A water cavity (111) is provided on the door frame (101) at a position corresponding to the strip grooves (109), and a water bag connected to the plurality of nozzles (110) on the corresponding side is provided in the water cavity (111). An air cavity (112) is provided on the door frame (101) below the two water cavities (111), and a partition (401) is slidably arranged in the two air cavities (112). A latch (402) penetrating the door frame (101) is fixed on the partition (401), and a spring II (403) is provided between the partition (401) and the door frame (101) so that the latch (402) is pressed tightly against the side of the inner door body (201).

10. A safety fire door according to claim 9, characterized in that: Four guard plates (113) are fixed on the door frame (101) and are used to seal the water cavity (111) and the air cavity (112).

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