Modularized fireproof composite door
The modularly designed fireproof composite door utilizes the sliding cooperation of the slide plate and slide bar and the meshing of gears to achieve controllable opening and closing of the fireproof door. When opened, it sprays water to suppress smoke and fire, solving the problem of smoke diffusion and fire amplification when existing fireproof composite doors are opened, ensuring safe escape and easy operation.
Patent Information
- Application Number
- CN202511317380.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2025-11-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing fire-resistant composite doors can easily cause smoke and dust to spread and fire to intensify when opened, threatening the safety of people escaping.
A modular fireproof composite door was designed. Through the sliding cooperation of the slide plate and the slide bar, the gear meshing, and the linkage of the sprinkler system, the fireproof door can be opened and closed in a controlled manner. When opened, water is sprayed to suppress the spread of smoke and fire.
It effectively prevents the spread of smoke and fire, protects the safety of those escaping, and prevents water waste after people have escaped. It is simple to operate and highly practical.
Smart Images

Figure CN120990469A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of fireproof doors, in particular to a modular fireproof composite door. BACKGROUND
[0002] The fireproof composite door is a door product with double functions of fireproof and theftproof through composite structure design, the main structure adopts a combination of steel frame and fireproof filling material, the thickness of the inner and outer door plates is generally greater than or equal to 0.8 mm, and the inside is filled with rock wool or perlite and other fireproof materials.
[0003] When a fire occurs, the existing fireproof composite door will spread the smoke and dust generated by the fire along with the evacuation of personnel after being opened, which can easily cause certain harm to the escaping personnel, and because the fireproof composite door will cause fresh air to flow in after being opened, it will cause the oxygen required for combustion to increase sharply, and the increase of oxygen will intensify the combustion reaction of the combustible material, which will make the fire spread rapidly, and thus easily threaten the escaping personnel, therefore, the present application provides a modular fireproof composite door. SUMMARY
[0004] To solve the problems of smoke diffusion and fire spread after the fireproof composite door is opened in the background art, the present application provides a modular fireproof composite door.
[0005] The present application adopts the following technical scheme: a modular fireproof composite door, comprising two groups of walls, a door frame for installing a door body is fixedly connected between the two groups of walls, a fireproof door for preventing fire spread and smoke diffusion is movably connected to the door frame through a hinge, a fireproof and smoke dust prevention assembly is arranged on one side of the wall, and a swing assembly is arranged on the fireproof and smoke dust prevention assembly.
[0006] As a further improvement of the above-mentioned scheme, the fireproof and smoke dust prevention assembly comprises two groups of slide rods symmetrically fixedly connected to the wall on one side through connecting seats, the same slide plate is slidably connected to the outer portions of the two groups of slide rods, two groups of connecting rods are symmetrically hinged between the slide plate and the fireproof door through a hinge piece, and a first gear rack is fixedly connected to the slide plate through a support.
[0007] As a further improvement of the above-mentioned scheme, the fire and smoke prevention assembly further comprises a water supply pipe fixedly arranged on one side of the wall, an outer shell is fixedly connected to the water supply pipe, a gate plate is movably connected to the inner part of the outer shell, a sealing gasket is arranged on the edge of the gate plate, a lead screw is threadedly connected to the outer shell and rotatably connected to the gate plate at one end, a hand wheel is coaxially fixedly connected to the other end of the lead screw through a connecting shaft, a gear one is fixedly sleeved to the outer part of the connecting shaft and meshingly connected to a gear rack one, a spray pipe is rotatably connected to the wall at one side, a plurality of spray heads are equidistantly arranged on the bottom of the spray pipe, a connecting pipe is fixedly connected to the water supply pipe, a sleeve pipe is fixedly sleeved to the outer part of the pipe opening of the connecting pipe and sealingly rotatably connected to the outer part of the pipe opening of the spray pipe.
[0008] As a further improvement of the above-mentioned scheme, the swing assembly comprises a hollow shaft rotatably connected to the door frame, a fixed rod movably connected to the inner part of the hollow shaft and fixedly connected to the sliding plate at the end thereof extending to the outer part of the hollow shaft, a T-shaped bracket arranged in the inner part of the hollow shaft and fixedly connected to the fixed rod, two groups of rolling balls symmetrically movably connected to the T-shaped bracket, a groove formed in the inner wall of the hollow shaft, a rotating shaft rotatably connected to the door frame, bevel gears fixedly sleeved to the outer part of the rotating shaft and the outer part of one end of the hollow shaft and meshingly connected between the bevel gears, a disc coaxially fixedly connected to the rotating shaft, a column rotatably sleeved to the outer part of the disc, a strip-shaped frame movably sleeved to the outer part of the column, a gear rack two fixedly connected to the strip-shaped frame, and a gear two fixedly sleeved to the outer part of one side of the spray pipe and meshingly connected to the gear rack two.
[0009] As a further improvement of the above-mentioned scheme, the gate plate is fixedly connected with a guide block at both sides thereof, and a guide groove is formed in the inner wall of the outer shell corresponding to the position of the guide block and slidably connected with the guide block at the same side.
[0010] As a further improvement of the above-mentioned scheme, the number of the grooves is two groups and the grooves are designed in a spiral structure and matched with the rolling balls.
[0011] As a further improvement of the above-mentioned scheme, the column is fixedly connected to the outer part of the disc near the edge, and a limiting plate one is fixedly connected to the end of the column.
[0012] As a further improvement of the above-mentioned scheme, a guide rod is further fixedly connected to the strip-shaped frame horizontally and slidably connected to the door frame, and a limiting plate two is fixedly connected to the end of the guide rod.
[0013] As a further improvement of the above-mentioned scheme, a sealing ring is additionally arranged at the rotatable connection between the hollow shaft and the door frame and at the slidable connection between the guide rod and the door frame.
[0014] As a further improvement to the above solution, the fire door includes a perlite core layer, with door leaf frame layers on both sides of the perlite core layer, a fireproof board on the outside of the door leaf frame layer, and a decorative steel plate on the outside of the fireproof board.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0016] 1. When escaping personnel push the fire door inward, this invention utilizes the sliding engagement between the sliding plate and the sliding rod, and the hinged engagement between the sliding plate, the fire door, and the connecting rod. This allows the fire door to move the sliding plate when it opens. The movement of the sliding plate, in turn, drives the rack to move. The meshing between the rack and the gear drives the lead screw to rotate. With the movable engagement between the gate and the outer casing, and the sliding engagement between the guide block and the guide groove, the gate can be moved, facilitating the opening of the water supply pipe. At this time, the water inside the water supply pipe flows into the sprinkler pipe and is sprayed out through the nozzle. The sprayed water not only prevents the spread of smoke and fire, but also wets the clothing of the escaping personnel, preventing it from being ignited. It is highly practical.
[0017] 2. The present invention does not automatically spring back to close after the fire door is opened, thus not affecting the gradual escape of personnel, further improving the practicality of the device.
[0018] 3. After personnel have evacuated, this invention allows manual reverse rotation of the handwheel to drive gear one. Utilizing the meshing between gear one and rack one, the sliding engagement between the slide plate and the sliding rod, and the hinged connection between the slide plate, the fire door, and the connecting rod, the fire door can be closed to prevent the spread of smoke and fire. Simultaneously, the rotation of the screw can also drive the gate to close the water supply pipe, thereby preventing water from being wasted by continued spraying. The operation is simple, convenient, and quick.
[0019] 4. During the opening and closing of the fire door, this invention can also move the fixed rod. Utilizing the movable connection between the fixed rod and the hollow shaft, the interaction between the ball bearing and the groove, and the rotational engagement between the hollow shaft and the door frame, the fixed rod can drive the hollow shaft to rotate during movement. The meshing of the bevel gears further drives the disc to rotate, which in turn causes the column rod to perform circular motion. The movable connection between the column rod and the strip frame, and the sliding engagement between the guide rod and the door frame, allows the rack to move. The meshing of the rack and gears, along with the rotational engagement of the sprinkler pipe, causes the sprinkler pipe to swing back and forth, thereby increasing the water spray range and reducing the harm caused by smoke and flames to escaping personnel. Attached Figure Description
[0020] Figure 1 is a perspective view of the invention;
[0021] Figure 2 is a perspective view of the connection structure of the gate plate of the invention;
[0022] Figure 3 is a perspective view of the swing assembly of the invention;
[0023] Figure 4 is a perspective view of the connection structure of the spray pipe of the invention;
[0024] Figure 5 is a longitudinal sectional perspective view of the connection structure of the fixed rod and the hollow shaft of the invention;
[0025] Figure 6 is a sectional view of the fireproof door of the invention.
[0026] Main symbol explanation:
[0027] 1, wall; 2, door frame; 3, fireproof door; 101, sliding rod; 102, sliding plate; 103, connecting rod; 104, rack one; 105, water supply pipe; 106, shell; 107, gate plate; 108, screw rod; 109, gear one; 110, spray pipe; 111, spray head; 112, sleeve; 113, guide block; 114, guide groove; 201, hollow shaft; 202, fixed rod; 203, ball bearing; 204, groove; 205, rotating shaft; 206, bevel gear; 207, disc; 208, column rod; 209, strip frame; 210, rack two; 211, gear two; 212, limiting plate one; 213, guide rod; 214, limiting plate two; 301, perlite core layer; 302, door leaf skeleton layer; 303, fireproof plate; 304, veneer steel plate. DETAILED DESCRIPTION
[0028] In the following, the invention will be further described in conjunction with the drawings and specific embodiments. It should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments, without conflict.
[0029] Embodiment 1:
[0030] Please combine Figures 1-6The modular fireproof composite door of the embodiment comprises two wall bodies 1, a door frame 2 for mounting a door body is fixedly connected between the two wall bodies 1, a fireproof door 3 for preventing fire spreading and smoke diffusion is movably connected to the door frame 2 through a hinge, a fireproof and smoke-proof assembly is arranged on one side wall body 1, a swing assembly is arranged on the fireproof and smoke-proof assembly, the fireproof door 3 comprises a perlite core layer 301, door leaf skeleton layers 302 are arranged on both sides of the perlite core layer 301, fireproof plates 303 are arranged outside the door leaf skeleton layers 302, veneer steel plates 304 are arranged outside the fireproof plates 303, the perlite core layer 301 and the fireproof plates 303 can improve the fireproof capability of the fireproof door 3, and the door leaf skeleton layers 302 and the veneer steel plates 304 can improve the structural strength of the fireproof door 3.
[0031] The fireproof and smoke-proof assembly comprises two groups of slide rods 101 symmetrically fixedly connected to the one side wall body 1 through connecting seats, the same slide plate 102 is slidably connected outside the two groups of slide rods 101, two groups of connecting rods 103 are symmetrically hinged between the slide plate 102 and the fireproof door 3 through hinges, and the rack one 104 is fixedly connected to the slide plate 102 through a support.
[0032] The fireproof and smoke-proof assembly further comprises a water supply pipe 105 fixedly arranged on the one side wall body 1, the housing 106 is fixedly and communicatively connected to the water supply pipe 105, the gate plate 107 is movably connected inside the housing 106, the sealing gasket is arranged on the edge of the gate plate 107, the lead screw 108 is threadedly connected to the housing 106 and rotatably connected to the gate plate 107 at one end, the hand wheel is coaxially and fixedly connected to the other end of the lead screw 108 through the connecting shaft, the gear one 109 is fixedly sleeved outside the connecting shaft and meshingly connected to the rack one 104, the spray pipe 110 is rotatably connected to the one side wall body 1, the spray heads 111 are equidistantly arranged at the bottom of the spray pipe 110, the connecting pipe is fixedly and communicatively connected to the water supply pipe 105, the sleeve pipe 112 is fixedly sleeved outside the pipe opening of the connecting pipe and sealingly and rotatably connected to the outside of the pipe opening of the spray pipe 110, the guide blocks 113 are fixedly connected to both sides of the gate plate 107, the guide grooves 114 are formed in the inner wall of the housing 106 corresponding to the positions of the guide blocks 113 and slidably connected to the guide blocks 113 on the same side, and the guide grooves 114 can guide the horizontal movement of the gate plate 107.
[0033] The swing assembly comprises a hollow shaft 201 rotatably connected to the door frame 2, a fixed rod 202 movably connected to the inside of the hollow shaft 201, and the end of the fixed rod 202 extending to the outside of the hollow shaft 201 and fixedly connected with the sliding plate 102, a T-shaped bracket provided in the inside of the hollow shaft 201 and fixedly connected with the fixed rod 202, two groups of ball bearings 203 movably connected to the T-shaped bracket in a symmetrical manner, a groove 204 formed in the inner wall of the hollow shaft 201, a rotating shaft 205 rotatably connected to the door frame 2, a bevel gear 206 fixedly sleeved on the outside of the rotating shaft 205 and the outside of one end of the hollow shaft 201 and meshingly connected between the bevel gears 206, a disc 207 coaxially fixedly connected to the rotating shaft 205, a column rod 208 provided on the outside of the disc 207, a strip-shaped frame 209 movably sleeved on the outside of the column rod 208, a rack two 210 fixedly connected to the strip-shaped frame 209, a gear two 211 fixedly sleeved on one side of the spraying pipe 110 and meshingly connected with the rack two 210, the two groups of grooves 204 being designed in a spiral structure and matched with the ball bearings 203, the column rod 208 being fixedly connected to the disc 207 outside the edge, the end of the column rod 208 being fixedly connected with a limiting plate one 212, the limiting plate one 212 being capable of preventing the column rod 208 from being separated from the strip-shaped frame 209, and a guide rod 213 horizontally fixedly connected to the strip-shaped frame 209 and slidably connected with the door frame 2, the end of the guide rod 213 being fixedly connected with a limiting plate two 214 and capable of guiding the horizontal movement of the rack two 210.
[0034] The implementation principle of the modular fireproof composite door in the embodiment of the application is as follows: when a fire occurs, a security guard opens the total valve of the water supply pipe 105 after issuing a fire alarm, the total valve is opened and closed by the security guard, when the escape personnel push the fireproof door 3 inward, the sliding cooperation between the sliding plate 102 and the sliding rod 101, the hinged cooperation between the sliding plate 102 and the connecting rod 103, the sliding plate 102 and the fireproof door 3, make the fireproof door 3 push the sliding plate 102 to move when the fireproof door 3 is opened, the movement of the sliding plate 102 drives the rack one 104 to move, the meshing cooperation between the rack one 104 and the gear one 109 makes the gear one 109 rotate, the movable cooperation between the shutter plate 107 and the outer shell 106, the sliding cooperation between the guide block 113 and the guide groove 114, make the shutter plate 107 move, so as to open the water supply pipe 105, at this time, the water in the water supply pipe 105 flows into the spray pipe 110 and is sprayed out through the nozzle 111, the sprayed water not only prevents the spread of smoke and fire, but also prevents the clothes of the escape personnel from being ignited, and the fireproof door 3 will not automatically rebound and close after being opened, so as not to affect the continuous escape of personnel, when the personnel escape is completed, the gear one 109 is driven to rotate in the opposite direction by manually rotating the hand wheel, the meshing cooperation between the gear one 109 and the rack one 104, the sliding cooperation between the sliding plate 102 and the sliding rod 101, the hinged cooperation between the sliding plate 102 and the connecting rod 103, make the fireproof door 3 close to prevent the spread of smoke and fire, at the same time, the rotation of the lead screw 108 also drives the shutter plate 107 to close the water supply pipe 105, so as to prevent the water from continuing to spray and causing waste, the operation is simple, convenient and fast, at the same time, the fixed rod 202 also moves in the process of opening and closing the fireproof door 3, the movable connection cooperation between the fixed rod 202 and the hollow shaft 201, the cooperation between the ball 203 and the groove 204, the rotation cooperation between the hollow shaft 201 and the door frame 2, make the fixed rod 202 rotate the hollow shaft 201 when moving, under the meshing cooperation between the bevel gears 206, make the disc 207 rotate, the disc 207 rotates and drives the column rod 208 to make a circular motion, the movable connection cooperation between the column rod 208 and the strip frame 209, the sliding cooperation between the guide rod 213 and the door frame 2, make the rack two 210 move, under the meshing cooperation between the rack two 210 and the gear two 211, and the rotation cooperation of the spray pipe 110, make the spray pipe 110 swing back and forth, so as to improve the spraying range of the water, and further reduce the harm of smoke and fire to the escape personnel, when there is no fire, the security guard closes the total valve of the water supply pipe 105, even if the fireproof door 3 is used, there will be no water sprayed out.
[0035] Embodiment 2:
[0036] The embodiment is further improved on the basis of the embodiment 1, and the rotating connection between the hollow shaft 201 and the door frame 2 and the sliding connection between the guide rod 213 and the door frame 2 are both provided with sealing rings, so that the sealing effect can be increased, and smoke and dust can be prevented from escaping.
[0037] The components of the present application are all general standard components or components known by those skilled in the art, the structure and principle of which can be known by the technical personnel through a technical manual or through a conventional experimental method, and for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0038] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be combined to form other embodiments that those skilled in the art can understand.
Claims
1. A modular fireproof composite door, characterized in that, It includes two sets of walls (1), and a door frame (2) for installing a door is fixedly connected between the two sets of walls (1). A fire door (3) for preventing the spread of fire and smoke is movably connected to the door frame (2) by a hinge. A fireproof and smoke-proof component is provided on one side of the wall (1), and a swing component is provided on the fireproof and smoke-proof component.
2. The modular fireproof composite door as described in claim 1, characterized in that, The fireproof and smoke-proof assembly includes two sets of sliding rods (101) symmetrically fixed to one side wall (1) via connecting seats. The two sets of sliding rods (101) are slidably connected to the same sliding plate (102). The sliding plate (102) and the fire door (3) are symmetrically hinged to two sets of connecting rods (103) via hinges. The sliding plate (102) is fixedly connected to a rack (104) via a bracket.
3. A modular fireproof composite door as described in claim 2, characterized in that, The fireproof and smoke-proof assembly also includes a water supply pipe (105) fixedly installed on one side wall (1). A housing (106) is fixedly connected to the water supply pipe (105). A gate (107) is movably connected inside the housing (106). A sealing gasket is provided on the edge of the gate (107). A screw rod (108) is threadedly connected to the housing (106), and one end of the screw rod (108) is rotatably connected to the gate (107). The other end of the screw rod (108) is coaxially fixed through a connecting shaft. A handwheel is connected, and a gear (109) is fixedly sleeved on the outside of the connecting shaft and the gear (109) meshes with a rack (104). A spray pipe (110) is rotatably connected to one side of the wall (1). Spray nozzles (111) are equidistantly arranged at the bottom of the spray pipe (110). A connecting pipe is fixedly connected to the water supply pipe (105). A sleeve (112) is fixedly sleeved on the outside of the pipe opening of the connecting pipe and the sleeve (112) is rotatably and sealed to the outside of the pipe opening of the spray pipe (110).
4. A modular fireproof composite door as described in claim 3, characterized in that, The swing assembly includes a hollow shaft (201) rotatably connected to the door frame (2). A fixed rod (202) is movably connected inside the hollow shaft (201), and the end of the fixed rod (202) extends to the outside of the hollow shaft (201) and is fixedly connected to the slide plate (102). A T-shaped frame is also provided inside the hollow shaft (201), and the T-shaped frame is fixedly connected to the fixed rod (202). Two sets of ball bearings (203) are symmetrically movably connected to the T-shaped frame. A groove (204) is provided on the inner wall of the hollow shaft (201). A rotating shaft (205) is rotatably connected to the door frame (2). (205) is fixedly fitted with bevel gears (206) on the outside of the shaft (205) and one end of the hollow shaft (201), and the bevel gears (206) are meshed with each other. A disc (207) is fixedly connected to the shaft (205) on the same axis. A column rod (208) is provided on the outside of the disc (207). A strip frame (209) is movably fitted on the outside of the column rod (208). A rack (210) is fixedly connected to the strip frame (209). A gear (211) is fixedly fitted on one side of the spray pipe (110), and the gear (211) meshes with the rack (210).
5. A modular fireproof composite door as described in claim 4, characterized in that, Guide blocks (113) are fixedly connected to both sides of the gate (107). The inner wall of the outer shell (106) is provided with guide grooves (114) corresponding to the positions of the guide blocks (113), and the guide grooves (114) are slidably connected to the guide blocks (113) on the same side.
6. A modular fireproof composite door as described in claim 5, characterized in that, The grooves (204) are in two sets and have a spiral structure design, and the grooves (204) are adapted to the ball (203).
7. A modular fireproof composite door as described in claim 6, characterized in that, The column (208) is fixedly connected to the outside of the disk (207) near the edge, and the end of the column (208) is fixedly connected to a limiting plate (212).
8. A modular fireproof composite door as described in claim 7, characterized in that, A guide rod (213) is also horizontally fixedly connected to the strip frame (209), and the guide rod (213) is slidably connected to the door frame (2). The end of the guide rod (213) is fixedly connected to a limit plate (214).
9. A modular fireproof composite door as described in claim 8, characterized in that, Sealing rings are provided at the rotatable connection between the hollow shaft (201) and the door frame (2) and at the sliding connection between the guide rod (213) and the door frame (2).
10. A modular fireproof composite door as described in claim 9, characterized in that, The fire door (3) includes a perlite core layer (301), and door leaf frame layers (302) are provided on both sides of the perlite core layer (301). A fireproof board (303) is provided on the outside of the door leaf frame layer (302), and a decorative steel plate (304) is provided on the outside of the fireproof board (303).