Fire and explosion proof door and emergency system

Abstract

The present invention relates to the technical field of fireproof doors, and discloses a fireproof and explosion-proof door and an emergency system. The key points of the technical solution are that the door body and the door frame are provided, and the door body is provided with a locking assembly and a hand wheel, and the hand wheel is constructed to be able to switch the opening state and the locking state of the locking assembly. The present invention provides a fireproof and explosion-proof door, and the stress degree of the door frame and the door edge can be effectively reduced by providing a first buffer block and a buffer groove. In the case of excessive impact force, the second buffer block will break through the buffer groove, and the door will not be deformed until the buffer groove is broken. Therefore, the shape of the door frame and the door body can be guaranteed as much as possible, and the problem that the door frame and the door body are deformed and difficult to open can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fireproof doors, and more particularly to a fireproof and explosion-proof door and an emergency system. Background Art

[0002] Explosion-proof and fire-proof doors are doors installed at the door openings to protect against shock waves, fragments and flames when explosives and combustibles explode outside the protected building or room.

[0003] The existing fireproof and explosion-proof doors are prone to deformation of the door frame and door body when impacted, which can significantly weaken the fireproof performance. At the same time, the deformation of the door body greatly increases the difficulty of rescue for firefighters. In addition, the explosion-proof doors in the prior art lack support for firefighters during the rescue process, and may even hinder the rescue work of firefighters. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a fire and explosion proof door and an emergency system to overcome the above-mentioned defects in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fireproof and explosion-proof door and emergency system, comprising a door body and a door frame, the door body is provided with a locking assembly and a hand wheel, the hand wheel is configured to switch the unlocking state and the locking state of the locking assembly, the door body is provided with a plurality of first buffer blocks, the door frame is provided with a plurality of buffer grooves corresponding to the first buffer blocks in one-to-one positions, the buffer grooves are configured to bear the impact force transmitted from the door body to the first buffer blocks; and

[0006] a cover plate, the cover plate being disposed on the door body, and a sealed space being formed between the cover plate and the door body; and

[0007] A winch assembly, the winch assembly comprising a cable drum and a driving member, the cable drum is mounted on the rotating shaft of the hand wheel, and the driving member is configured to drive the rotating shaft to rotate; and

[0008] A switching mechanism, the switching mechanism comprising a first state and a second state, when the switching mechanism is in the first state, the hand wheel can switch the state of the locking assembly, when the switching mechanism is in the second state, the hand wheel is disengaged from the locking assembly, and the driving member can drive the rotating shaft to rotate; and

[0009] A trigger mechanism, the trigger mechanism includes a second buffer block and a block, the second buffer block is arranged on the door body, the second buffer block is constructed to transfer the impact force exerted on the door body to the block, the block is arranged in cooperation with the switching mechanism, the block is broken by impact or high temperature, so that the trigger mechanism can switch from the first state to the second state.

[0010] As a further improvement of the present invention, the trigger mechanism also includes a sleeve and a tension spring. The sleeve is arranged on the door body and is located in the sealed space. One end of the second buffer block extends into the sleeve and is slidably connected to the sleeve. The block is arranged in the sleeve and provides a supporting force acting on one end of the second buffer block extending out of the door body. The tension spring is arranged in the sleeve, one end of the tension spring is connected to the second buffer block, and the other end is connected to the sleeve. The tension spring provides a pulling force acting on the second buffer block to slide toward the bottom of the sleeve.

[0011] As a further improvement of the present invention, a plurality of trigger mechanisms are provided.

[0012] As a further improvement of the present invention, the switching mechanism includes a first box body, a push block, a push rod, a connecting pipe and an elastic member, the first box body is arranged in the sealed space, one end of the connecting pipe is communicated with the first box body, the other end of the connecting pipe passes through the sliding sleeve and is blocked by the block, the push block is slidably installed in the first box body, the push block divides the first box body into two spaces that are not connected to each other, an elastic member is arranged on one side of the push block, the elastic member is constructed to provide an elastic force to drive the push block to move toward the other side, the space on the other side of the push block is filled with liquid, and the connecting pipe is communicated with the space on this side, one end of the push rod is connected with the push block, and the other end of the push rod extends out of the first box body to connect the driving member, when the block is broken, the elastic member drives the push block and the push rod to move, so as to flush the liquid into the connecting pipe and drive the driving member to dock with the rotating shaft through the push rod.

[0013] As a further improvement of the present invention, the switching mechanism also includes a second housing and a turbine, the second housing is located in the sealed space, the rotating shaft passes through the second housing, the turbine is mounted on the rotating shaft and is located in the second housing, the connecting pipe passes through the sleeve and is connected to the second housing and is aligned with the turbine.

[0014] As a further improvement of the present invention, the cooling mechanism includes a third box, a connecting valve and a plurality of nozzles. The third box is arranged in the sealed space. The third box is connected to the second box through a pipeline. The third box is constructed to receive the liquid in the second box. The plurality of nozzles are located on both sides of the door body and are connected to the third box. The connecting valve is located on one side of the door body and is connected to the third box.

[0015] As a further improvement of the present invention, the driving member includes a mounting plate, a guide rail, a motor, a first gear and a second gear. The guide rail is installed on the door body, the mounting plate is slidably installed on the guide rail and is connected to the push rod, the motor is arranged on the mounting plate, the first gear is arranged on the rotating shaft, and the second gear is arranged at the output end of the motor. The mounting plate can be subjected to the thrust of the push rod to drive the mounting plate to move along the guide rail so that the first gear and the second gear are engaged.

[0016] As a further improvement of the present invention, the locking assembly includes a locking rod, a plurality of locking blocks, a telescopic rod and a rack. The locking rod is slidably mounted on the door body or the cover plate. The locking rod is constructed to drive a plurality of locking blocks to lock the door body to the door frame or unlock it. The telescopic rod is slidably mounted on the cover plate. A spring is built into the telescopic rod to keep the telescopic rod in an extended state. The rack is arranged on a section of the telescopic rod and can engage with the first gear. The other end of the telescopic rod is hinged to the locking rod. When the locking block is switched to the unlocked state, the mounting plate is driven to squeeze the telescopic rod to a compressed state to disengage the rack and the first gear.

[0017] As a further improvement of the present invention, an elastic layer is provided in the first buffer groove.

[0018] As a further improvement of the present invention, the length of the second buffer block extending from the door body is shorter than the length of the first buffer block.

[0019] As a further improvement of the present invention, it further comprises a plurality of temperature sensors, a detection module and a control module, wherein the plurality of temperature sensors are distributed on the door body;

[0020] The detection module is configured with a temperature threshold, and the detection module obtains the temperature value of each temperature sensor, and when the temperature value is higher than the temperature threshold, obtains the corresponding detection area of ​​the temperature sensor and generates corresponding area information;

[0021] The control module obtains the area information, controls the plurality of nozzles to align with the detection area of ​​the area information and opens the valve bodies corresponding to the nozzles.

[0022] Beneficial effects of the present invention: The present invention provides a fireproof and explosion-proof door. By providing the first buffer block and the buffer groove, the stress on the door frame and the door edge can be effectively reduced. When the impact force is too large, the second buffer block will break through the buffer groove. The door will not deform until the buffer groove is broken. Therefore, the shape of the door frame and the door body can be maintained as much as possible, solving the problem that the door frame and the door body are deformed and difficult to open.

[0023] The second buffer block and the stopper can be directly broken in the case of high temperature and explosion. The liquid in the first box can not only be used to assist the rotation of the shaft, but also can be used in the third box for auxiliary cooling and fire extinguishing.

[0024] And when firefighters encounter some people trapped or buried, they can directly tie the rope of the cable drum to the obstacle, or they can tie the fire axe they carry with them to the rope, insert or stuff the fire axe into the obstacle, and then use the motor to drive the shaft to rotate, use the cable drum to retract the cable, and remove the obstacle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the invention of the present invention;

[0026] Figure 2 The present invention Figure 1 Rear view of

[0027] Figure 3 The present invention Figure 1 Schematic diagram of the internal structure of the door body;

[0028] Figure 4 The present invention Figure 1 Schematic diagram of the internal structure of the door body;

[0029] Figure 5 The present invention Figure 4 A three-dimensional diagram of the components in the confined space;

[0030] Figure 6 This is a diagram of the second gear driving mode in the present invention;

[0031] Figure 7 Is a schematic diagram of the structure of the turbine of the present invention;

[0032] Figure 8 is a schematic diagram of the installation of the second buffer block of the present invention;

[0033] Fig. 9 It is an embodiment diagram of the locking block of the present invention.

[0034] Figure numerals: 1, door body; 11, first buffer block; 12, door edge; 13, hinge; 2, cover plate; 21, sealed space; 3, door frame; 31, buffer groove; 32, buffer layer; 4, trigger mechanism; 41, second buffer block; 42, sliding sleeve; 43, retaining ring; 44, block; 45, tension spring; 5, switching mechanism; 51, elastic member; 52, first box body; 53, push block; 54, push rod; 55, connecting pipe; 56, rotating shaft ; 57. Second housing; 58. Turbine; 6. Locking assembly; 61. Locking block; 611. Slider; 612. Slide; 62. Locking rod; 63. Telescopic rod; 65. Rack; 7. Winch assembly; 71. Cable drum; 72. Driving member; 73. Second gear; 74. Guide rail; 75. Mounting plate; 76. First gear; 77. Motor; 8. Cooling mechanism; 81. Third housing; 82. Sprinkler; 83. Connecting valve; 9. Handwheel. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0036] A fireproof and explosion-proof door and emergency system of the present embodiment includes a door body 1 and a door frame 3, the door body 1 and the door frame 3 are hingedly connected by a hinge 13, the door frame 3 can be directly fixedly installed at the place to be installed, a locking assembly 6 and a hand wheel 9 are provided on the door body 1, the hand wheel 9 is constructed to switch the opening state and the locking state of the locking assembly 6, a plurality of first buffer blocks 11 are provided on the door body 1, the outer circle of the door body 1 also includes a door edge 12, the door edge 12 is in direct contact with the door frame 3, and the first buffer block 11 is also arranged on the door edge 12, for the sealed space 21, the part of the door edge 12 located in the sealed space 21 can be hollow, and together with the cover plate 2 and the door body 1, the sealed space 21 is formed, and a plurality of buffer grooves 31 corresponding to the first buffer blocks 11 are provided on the door frame 3, and the buffer grooves 31 are constructed to bear the impact force transmitted from the door body 1 to the first buffer block 11; and

[0037] The cover plate 2 is arranged on the door body 1 and is located on one side of the door body 1. A sealed space 21 is formed between the cover plate 2 and the door body 1. The cover plate 2 and the door body 1 are fixedly connected, usually by bolts. When necessary (for maintenance or subsequent resetting of the push block 53, replacement of the trigger mechanism 4, etc.), the bolts can be loosened to disassemble the cover plate 2 to expose the switching mechanism 5, the trigger mechanism 4, the cooling mechanism 8 and other components; and

[0038] A winch assembly 7, the winch assembly 7 comprises a cable drum 71 and a driving member 72, a rope is wound around the cable drum 71, the cable drum 71 is mounted on the rotating shaft 56 of the hand wheel 9, and the driving member 72 is configured to drive the rotating shaft 56 to rotate; and

[0039] The switching mechanism 5 includes a first state and a second state. When the switching mechanism 5 is in the first state, the hand wheel 9 can switch the state of the locking assembly 6. When the switching mechanism 5 is in the second state, the hand wheel 9 is disengaged from the locking assembly 6, and the driving member 72 can drive the rotating shaft 56 to rotate; and

[0040] The trigger mechanism 4 includes a second buffer block 41 and a stopper 44. The second buffer block 41 is arranged on the door body 1. The second buffer block 41 and the first buffer block 11 are both arranged on one side of the door body 1. For the second buffer block 41, it is arranged near the cover plate 2, and of course it can also be arranged at the door edge 12. The stopper 44 is arranged in cooperation with the switching mechanism 5. The second buffer block 41 is constructed to transfer the impact force exerted on the door body 1 to the stopper 44, that is, when an explosion occurs, the door body 1 drives the second buffer block 41 to squeeze the door frame 3, so that the second buffer block 41 is deformed or enters the sliding sleeve 42 to smash the stopper 44. When the stopper 44 is impacted or broken by high temperature, the trigger mechanism 4 can switch from the first state to the second state.

[0041] In one embodiment, two door bodies 1 are provided to form a double-door structure, and the hand wheels 9 of the two door bodies 1 are respectively located on both sides of the door frame 3, that is, one inside and one outside the door. In this embodiment, the locking block 61 is arranged on the upper and lower sides of the door body 1, that is, the door body 1 is locked with the door frame 3, and the two door bodies 1 will not be locked with each other.

[0042] In one embodiment, the rotating shaft 56 passes through the door body 1, and hand wheels 9 are provided at both ends of the rotating shaft 56. The door body 1 can be opened by rotating the hand wheels 9 inside and outside the door.

[0043] Specifically, in this embodiment, the cable drum 71 is disposed at both ends of the rotating shaft 56, that is, one is disposed on both sides inside and outside the door.

[0044] In one embodiment, the cable drum 71 and the rotating shaft 56 are fixedly connected.

[0045] In one embodiment, a ratchet structure is provided at the connection between the cable drum 71 and the rotating shaft 56. When the rope on the cable drum 71 is manually lengthened, idle rotation occurs between the cable drum 71 and the rotating shaft 56. When the motor 77 drives the rotating shaft 56 to rotate and the rope on the cable drum 71 is retracted, the ratchet between the cable drum 71 and the rotating shaft 56 will not idle rotation. The advantage of this arrangement is that the rope can be quickly pulled to the place to be used during the rescue process.

[0046] The present invention provides a fireproof and explosion-proof door. By providing the first buffer block 11 and the buffer groove 31, the stress on the door frame 3 and the door edge 12 can be effectively reduced. When the impact force is too large, the second buffer block 41 will break through the buffer groove 31. The door frame 3 will not deform until the buffer groove 31 is broken. Therefore, the shapes of the door frame 3 and the door body 1 can be maintained as much as possible, solving the problem that the door frame 3 and the door body 1 are deformed and difficult to open.

[0047] The second buffer block 41 and the stopper 44 can be directly broken in the case of high temperature and explosion. The liquid in the first box 52 can not only be used to assist the rotation of the shaft 56, but also can be used to assist in cooling and extinguishing fire in the third box 81.

[0048] And when firefighters encounter some people trapped or buried, they can directly tie the rope of the cable drum 71 to the obstacle, or they can use the fire axe they carry with them to tie it to the rope, insert or stuff the fire axe into the obstacle, and then use the motor 77 to drive the rotating shaft 56 to rotate, use the cable drum 71 to retract the cable, and remove the obstacle.

[0049] In one embodiment, the trigger mechanism 4 further includes a sleeve 42 and a tension spring 45. The sleeve 42 is arranged on the door body 1 and is located in the sealed space 21. One end of the second buffer block 41 extends into the sleeve 42 and is slidably connected with the sleeve 42. The shape of one end of the second buffer block 41 in the sleeve 42 is adapted to the shape of the inner cavity of the sleeve 42, that is, when the liquid passes through the sleeve 42, it will not flow out from the gap between the second buffer block 41 and the sleeve 42. The stopper 44 is arranged in the sleeve 42. , and provides a supporting force acting on one end of the second buffer block 41 extending out of the door body 1. The tension spring 45 is arranged in the sliding sleeve 42. One end of the tension spring 45 is connected to the second buffer block 41, and the other end is connected to the sliding sleeve 42. The tension spring 45 provides a pulling force acting on the second buffer block 41 to slide toward the bottom of the sliding sleeve 42. The setting of the tension spring 45 in the present invention not only limits the second buffer block 41 from separating from the sliding sleeve 42, but also ensures that the second buffer block 41 moves toward the bottom of the sliding sleeve 42 after being impacted.

[0050] In one embodiment, the trigger mechanism 4 also includes a retaining ring 43, which is arranged in the sliding sleeve 42. A certain distance is formed between the retaining ring 43 and the bottom of the sliding sleeve 42 to ensure that the connecting pipe 55 is aligned and connected to this distance area. The retaining ring 43 is set to prevent the second buffer block 41 from further moving during its movement.

[0051] In one embodiment, interfaces are provided on both sides of the bottom of the sliding sleeve 42 for installing the connecting pipe 55, and two stoppers 44 are provided inside the sliding sleeve 42, which are respectively provided at the two interfaces and seal the interfaces.

[0052] In one embodiment, there are several trigger mechanisms 4 . As shown in the drawings, there are three trigger mechanisms 4 . The arrangement of several trigger mechanisms 4 can prevent one of the blocks 44 from accidentally breaking and causing the entire trigger mechanism 4 to be triggered.

[0053] Specifically, the thickness of the block 44 in the trigger mechanism 4 is arranged to decrease in sequence, wherein the thickness of the block 44 of the trigger mechanism 4 close to the first box body 52 is the largest. The advantage of such an arrangement is that, in the event of a fire, the first trigger mechanism 4 is triggered last, preventing the liquid in the first box body 52 from entering the connecting pipe 55 in advance, and also preventing the mounting plate 75 from starting to move in advance.

[0054] In one embodiment, the switching mechanism 5 includes a first box body 52, a push block 53, a push rod 54, a connecting pipe 55 and an elastic member 51. The first box body 52 is arranged in the sealed space 21. One end of the connecting pipe 55 is communicated with the first box body 52. ​​The other end of the connecting pipe 55 passes through the sliding sleeve 42 and is blocked by the stopper 44. The push block 53 is slidably installed in the first box body 52. ​​The push block 53 divides the first box body 52 into two spaces that are not connected to each other. As shown in the accompanying drawings, the shape of the push block 53 is adapted to the cross-sectional shape of the first box body 52 to form two spaces that are not connected to each other. An elastic member 51 is arranged on one side of the push block 53. The elastic member 51 is configured to provide an elastic force that drives the push block 53 to move toward the other side. One end of the elastic member 51 is connected to the first box body 52, and the other end of the elastic member 51 is connected to the push The push block 53 is connected, and the space on the other side of the push block 53 is filled with liquid. After the other side of the push block 53 is filled with liquid, the elastic member 51 is in a compressed state. During the liquid discharge process, the elastic member 51 will release its elasticity to drive the push block 53 to move, and the connecting pipe 55 is connected to the side space. One end of the push rod 54 is connected to the push block 53, and the other end of the push rod 54 extends out of the first box body 52 to connect the driving member 72. The push rod 54 passes through the first box body 52 and a sealing ring is set at the connection to prevent liquid leakage. When the stopper 44 is broken, the elastic member 51 drives the push block 53 and the push rod 54 to move, so as to flush the liquid into the connecting pipe 55 and drive the driving member 72 to dock with the rotating shaft 56 through the push rod 54. The docking here refers to power connection, and the power connection includes but is not limited to gear docking, bevel gear docking, etc.

[0055] The present invention can store liquid in the door body 1 by setting the first box body 52. ​​At the same time, when the block 44 is not broken, the liquid cannot leave the first box body 52, and the first box body 52 is sealed. This not only prevents the liquid from evaporating and escaping, but also prevents the liquid from contacting the outside world in this state, thereby improving the safety of use. The setting of the first push block 53 and the first push rod 54 can release the elastic force of the elastic member 51 when encountering an explosion and high temperature, and connect the driving member 72 with the rotating shaft 56. This setting can also ensure that when the explosion-proof door is used normally, the driving member 72 will not interfere with the locking assembly 6.

[0056] Specifically, the connecting pipe 55 passes through the sliding sleeve 42, and the part thereof passing through is communicated with the interior of the sliding sleeve 42. The stopper 44 is arranged at the communicating place of the two. The two are substantially communicated only after the stopper 44 is broken or melted.

[0057] Specifically, a liquid filling port is provided on the first box body 52, and the liquid filling port is located at the lower side of the block 44 in the figure, and may be close to the connection point of the connecting pipe 55. Liquid can be replenished into the first box body 52 through the liquid filling port.

[0058] In one embodiment, the elastic member 51 includes but is not limited to a spring, a gas pressure rod, etc., and a plurality of the elastic members 51 may be provided to ensure the elastic force of the elastic member 51 .

[0059] In one embodiment, the liquid includes, but is not limited to, a fire extinguishing agent, a flame retardant, and the like.

[0060] In one embodiment, the switching mechanism 5 also includes a second box body 57 and a turbine 58. The second box body 57 is located in the sealed space 21. The rotating shaft 56 passes through the second box body 57. A sealing ring is also required at the connection between the second box body 57 and the rotating shaft 56. The turbine 58 is installed on the rotating shaft 56 and is located in the second box body 57. The blades of the turbine 58 need to cover the entire second box body 57 as much as possible to reduce the gap between the blades and the second box body 57, thereby ensuring that when the liquid impacts the blades, the impact force of the liquid can act on the blades for the most part, reducing the manpower required to drive the rotating shaft 56 to rotate. The connecting pipe 55 passes through the sleeve 42 and is connected to the second box body 57, and is aligned with the turbine 58.

[0061] The present invention is provided with a turbine structure. In normal use, the turbine 58 structure does not work. In case of fire or explosion, the connecting pipe 55 is opened, and the liquid can impact the turbine 58. The liquid in the second pipe cannot directly drive the turbine 58 to rotate, and it is necessary to manually cooperate with the hand wheel 9 to rotate the shaft 56 to open the lock block 61. The advantage of this arrangement is that when the door body 1 is damaged to a certain extent due to an explosion or high temperature, the impact force of the liquid can assist in opening the door body 1, reducing the physical strength and power required by the door opener. After the door body 1 is unlocked, the door body 1 is still attached to the door frame 3, which can meet the fire protection requirements.

[0062] In one embodiment, the internal space of the second box body 57 can be set to be cylindrical, and the diameter of the turbine 58 is the same as or slightly reduced from the diameter of the cross-section of the internal space of the second box body 57, thereby increasing the contact area between the liquid and the blades of the turbine 58. At the same time, the thickness of the turbine 58 and the depth of the internal space of the second box body 57 are kept as equal as possible, which also increases the contact area between the liquid and the blades of the turbine 58.

[0063] In one embodiment, the cooling mechanism 8 includes a third box body 81, a connecting valve 83 and a plurality of nozzles 82. The third box body 81 is arranged in the sealed space 21. The third box body 81 is connected to the second box body 57 through a pipeline. The third box body 81 is constructed to receive the liquid in the second box body 57. The plurality of nozzles 82 are located on both sides of the door body 1 and are connected to the third box body 81. The connecting valve 83 is located on one side of the door body 1 and is connected to the third box body 81.

[0064] The present invention is provided with a cooling mechanism 8. Through the setting of the third box body 81, the liquid discharged from the second box body 57 can be received. Through the setting of the connecting valve 83, the fire hose in the fire hydrant can be connected, and the liquid is mixed with the water in the fire hydrant and sprayed out, thereby achieving the effect of effectively preventing the spread of fire. At the same time, it can also reduce the temperature around the door body 1, and have a certain protective effect on the door body 1 and the personnel themselves.

[0065] In one embodiment, the nozzles 82 are each provided with a pressure valve, which is provided to ensure that the liquid does not flow out immediately when entering the third box 81. Only when the fire hydrant is connected, the pressure in the third box 81 is greater than the preset pressure of the pressure valve, the liquid will be sprayed out with the water flow, thereby ensuring the spray distance of the liquid.

[0066] In one embodiment, a solenoid valve is disposed in each of the nozzles 82 , and the opening and closing of the nozzles 82 can be controlled by switching the solenoid valve.

[0067] In one embodiment, the spray head 82 may be in the form of a rotating spray head 82 so that the direction of the spray head 82 can be adjusted.

[0068] In one embodiment, the nozzle 82 is a fire sprinkler 82 with a sufficient diffusion surface in the spraying direction. In this form, there is no need to control the direction of the nozzle 82, and only the corresponding solenoid valve needs to be opened.

[0069] In one embodiment, the driving member 72 includes a mounting plate 75, a guide rail 74, a motor 77, a first gear 76 and a second gear 73. The guide rail 74 is installed on the door body 1. Several guide rails 74 can be provided to ensure the movement stability of the mounting plate 75. The mounting plate 75 is slidably installed on the guide rail 74 and is connected to the push rod 54. The motor 77 is provided on the mounting plate 75, the first gear 76 is provided on the rotating shaft 56, and the second gear 73 is provided at the output end of the motor 77. The mounting plate 75 can be subjected to the thrust of the push rod 54 to drive the mounting plate 75 to move along the guide rail 74 so that the first gear 76 and the second gear 73 are meshed. After the first gear 76 and the second gear 73 are meshed, the power connection between the driving member 72 and the rotating shaft 56 is completed.

[0070] Specifically, as shown in the drawings, the first gear 76 is a gear set, in which one gear is meshed with the second gear 73 , and the other gear is meshed with the rack 65 .

[0071] In one embodiment, the diameter of the first gear 76 is greater than the diameter of the second gear 73 , thereby obtaining a larger torque and also reducing the rotation speed of the rotating shaft 56 .

[0072] In one embodiment, the locking assembly 6 includes a locking rod 62, a plurality of locking blocks 61, a telescopic rod 63 and a rack 65. The locking rod 62 is slidably installed on the door body 1 or the cover plate 2. The locking rod 62 is constructed to drive a plurality of locking blocks 61 to lock the door body 1 to the door frame 3 or unlock it. As shown in the accompanying drawings, the locking rod 62 is arranged in a bent shape to reduce interference with other components. The telescopic rod 63 is slidably installed on the cover plate 2. The telescopic rod 63 has a built-in spring to keep the telescopic rod 63 in an extended state. The rack 65 is arranged on a section of the telescopic rod 63 and can be engaged with the first gear 76. The other end of the telescopic rod 63 is hinged to the locking rod 62. When the locking block 61 is switched to the unlocked state, the mounting plate 75 is driven to squeeze the telescopic rod 63 to a compressed state to disengage the rack 65 and the first gear 76.

[0073] Specifically, the lock block 61 is rotatably installed on the door body 1, and an opening is set at the position corresponding to the lock block 61 on the cover plate 2 or the door edge 12. During the rotation of the lock block 61, it can extend from the opening or retract into the sealed space 21. After the lock block 61 is extended, it can be stuck in the corresponding lock groove on the door frame 3, thereby completing the locking of the lock block 61.

[0074] In one embodiment, the locking assembly 6 further includes a fixed block, which is mounted on the door body 1 . The fixed block is hollow and penetrates through to form a channel, and the telescopic rod 63 and the locking rod 62 are both arranged in the channel and slide along the channel.

[0075] In one embodiment, the length of the rack 65 is adapted to the state switching of the locking block 61, that is, when the locking block 61 is in the unlocked state, the rack 65 is exactly meshed with the first gear 76. After the mounting plate 75 contacts the telescopic rod 63, the telescopic rod 63 is compressed at the moment or a short distance, and the rack 65 and the first gear 76 are disengaged, preventing the first gear 76 from driving the rack 65 to move when the first gear 76 is subsequently meshed with the second gear 73.

[0076] In one embodiment, the telescopic rod 63 is filled with gas, and the telescopic rod 63 is compressed only after the mounting plate 75 squeezes the telescopic rod 63 .

[0077] In one embodiment, the locking block 61 and the locking rod 62 are fixedly connected, the locking block 61 is arranged on the top of the locking rod 62, and a locking hole matching the shape of the locking rod 62 is provided on the door frame 3, and the locking rod 62 can be inserted into the locking hole to complete the locking of the door body.

[0078] In one embodiment, the locking block 61 and the locking rod 62 are hingedly connected. When the locking rod 62 moves downward or upward, the locking block 61 is driven to rotate. In this embodiment, as shown in the accompanying drawings, a slider 611 and a slide groove 612 are provided at the hinge of the locking block 61. The hinge rod at the hinge is hinged to the slider 611, and the slide groove 612 is provided in the locking block 61. The slider 611 and the slide groove 612 are slidably connected. When the locking rod 62 moves up and down, the slider 611 drives the locking block 61 to rotate, and the horizontal displacement of the locking block 61 can also be overcome.

[0079] In one embodiment, the locking blocks 61 are arranged on the upper side or the lower side of the door body 1 and are directly connected to the locking rod 62 . When the locking rod 62 is raised or lowered, it directly drives the locking block 61 to be inserted into or detached from the door frame 3 .

[0080] In one embodiment, the size of the first buffer block 11 is gradually reduced in the direction away from the door body 1, so as to ensure that the extrusion force generated between the first buffer block 11 and the buffer groove 31 gradually increases during the process of the first buffer block 11 rushing into the buffer groove 31.

[0081] Specifically, the shape of the first buffer block 11 includes but is not limited to a cone, a polyhedron with a trapezoidal cross section, and the like.

[0082] Specifically, when the first buffer block 11 abuts against the buffer groove 31 , it is not completely inserted, but has a certain stroke, and this stroke is for leaving buffer space.

[0083] Specifically, a buffer layer 32 is arranged in the buffer groove 31 and in the door edge 12 and the door frame 3. The buffer layer 32 includes but is not limited to asbestos, etc. The buffer layer 32 can not only play a buffering role, but also improve the sealing between the door body 1 and the door frame 3, and effectively fill the gap between the door frame 3 and the door edge 12 caused by the setting of the first buffer block 11.

[0084] In one embodiment, the first buffer block 11 is cylindrical or cubic in shape, the size of which does not change in the length direction. An elastic layer is provided in the first buffer groove 31. The first buffer block 11 is in contact with the elastic layer when inserted into the buffer groove 31. After being impacted, the elastic layer plays a shock-absorbing role.

[0085] Specifically, a buffer layer 32 is arranged in the buffer groove 31 and in the door edge 12 and the door frame 3. The buffer layer 32 includes but is not limited to asbestos, etc. The buffer layer 32 can not only play a buffering role, but also improve the sealing between the door body 1 and the door frame 3, and effectively fill the gap between the door frame 3 and the door edge 12 caused by the setting of the first buffer block 11.

[0086] In one embodiment, the length of the second buffer block 41 extending out of the door body 1 is less than the length of the first buffer block 11, that is, when the door is closed normally, the second buffer block 44 forms a certain distance with the door edge 12 or just abuts against it. The advantage of this arrangement is to prevent the second buffer block 41 from being accidentally stressed during normal door opening and closing, causing the block 44 to break.

[0087] In one embodiment, the material of the block 44 includes but is not limited to fusible alloy, glass, etc., and of course, the inside thereof is hollow, and a configured organic solution with a certain expansion coefficient is arranged in the hollow part, and the organic solution expands when heated.

[0088] In one embodiment, a control switch is further provided on the door body 1 , and the control switch is used to control the switch of the motor 77 .

[0089] In one embodiment, sufficient heat-insulating materials are provided in the sealed space 21 and the door body 1 to ensure that the various components in the door body 1 will not be damaged due to high temperature in the early stage of a fire.

[0090] Specifically, the choice of thermal insulation materials includes but is not limited to asbestos, calcium silicate board and fiber cement board, etc. If necessary, combined thermal insulation materials can be selected for layout.

[0091] In one embodiment, it also includes a plurality of temperature sensors, a detection module and a control module, and the plurality of temperature sensors are distributed on the door body 1;

[0092] The detection module is configured with a temperature threshold. The detection module obtains the temperature value of each temperature sensor. When the temperature value is higher than the temperature threshold, the detection area of ​​the corresponding temperature sensor is obtained and the corresponding area information is generated.

[0093] The control module obtains the area information, controls a plurality of nozzles 82 to align with the detection area of ​​the area information and opens the valve bodies corresponding to the nozzles 82 .

[0094] In one embodiment, a trigger module is further included. The trigger module is used to detect the state of the stopper 44. When the stopper 44 is broken, a start message is sent to the temperature sensor. After receiving the start message, the temperature sensor starts the detection work.

[0095] Working principle: When encountering a fire or explosion, the block 44 is broken, and the second buffer block 41 receives the impact force and the tension of the tension spring 45 and retracts into the sliding sleeve 42, so that the connecting pipe 55 is opened. At this time, the elastic member 51 is reset, driving the push block 53 and the push rod 54 to move, and the liquid in the first box body 52 is flushed into the second box body 57, and the mounting plate 75 is also driven to move. When the firefighters or rescue personnel manually rotate the wheel, the liquid in the connecting pipe 55 impacts the turbine 58, providing an effective impact force to assist the rotation of the shaft 56. During the rotation of the wheel , driving the rotating shaft 56 to rotate, thereby driving the rack 65 and the telescopic rod 63 to move through the first gear 76, thereby driving the locking rod 62 to move, thereby driving the locking block 61 to unlock. When the unlocking is completed in this state, the mounting plate 75 abuts against the telescopic rod 63, driving the telescopic rod 63 to compress, thereby causing the rack 65 to disengage from the first gear 76. At this time, the second gear 73 and the first gear 76 are engaged. At this time, the firefighters can control the rotation of the cable drum 71 by controlling the start and stop of the motor 77, and the rope on the cable drum 71 can be used to assist in rescue and clear obstacles.

[0096] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A fireproof and explosion-proof door, comprising a door body (1) and a door frame (3), wherein the door body (1) is provided with a locking assembly (6) and a hand wheel (9), wherein the hand wheel (9) is configured to switch the locking assembly (6) between an open state and a locked state, and wherein: The door body (1) is provided with a plurality of first buffer blocks (11), the door frame (3) is provided with a plurality of buffer grooves (31) whose positions correspond one-to-one to the first buffer blocks (11), and the buffer grooves (31) are configured to bear the impact force transmitted from the door body (1) to the first buffer blocks (11); and a cover plate (2), the cover plate (2) being arranged on the door body (1), and a sealed space (21) being formed between the cover plate (2) and the door body (1); and A winch assembly (7), the winch assembly (7) comprising a winch drum (71) and a driving member (72), the winch drum (71) being mounted on a rotating shaft (56) of the hand wheel (9), the driving member (72) being configured to drive the rotating shaft (56) to rotate; and A switching mechanism (5), the switching mechanism (5) comprising a first state and a second state, when the switching mechanism (5) is in the first state, the hand wheel (9) can switch the state of the locking assembly (6), when the switching mechanism (5) is in the second state, the hand wheel (9) is disengaged from the locking assembly (6), and the driving member (72) can drive the rotating shaft (56) to rotate; The invention also includes a trigger mechanism (4), wherein the trigger mechanism (4) includes a second buffer block (41) and a block (44), wherein the second buffer block (41) is arranged on the door body (1), and the second buffer block (41) is configured to transfer the impact force exerted on the door body (1) to the block (44), and the block (44) is arranged in cooperation with the switching mechanism (5), and the block (44) is broken by impact or high temperature, so that the trigger mechanism (4) prompts the switching mechanism (5) to switch from the first state to the second state.

2. A fireproof and explosion-proof door according to claim 1, characterized in that: The trigger mechanism (4) also includes a sleeve (42) and a tension spring (45). The sleeve (42) is arranged on the door body (1) and is located in the sealed space (21). One end of the second buffer block (41) extends into the sleeve (42) and is slidably connected to the sleeve (42). The stopper (44) is arranged in the sleeve (42) and provides a supporting force for one end of the second buffer block (41) to extend out of the door body (1). The tension spring (45) is arranged in the sleeve (42). One end of the tension spring (45) is connected to the second buffer block (41) and the other end is connected to the sleeve (42). The tension spring (45) provides a pulling force for the second buffer block (41) to slide toward the bottom of the sleeve (42).

3. A fireproof and explosion-proof door according to claim 2, characterized in that: The trigger mechanisms (4) are provided in plurality.

4. The fireproof and explosion-proof door according to claim 2, characterized in that: The switching mechanism (5) comprises a first box (52), a push block (53), a push rod (54), a connecting pipe (55) and an elastic member (51); the first box (52) is arranged in the sealed space (21); one end of the connecting pipe (55) is communicated with the first box (52); the other end of the connecting pipe (55) passes through the sliding sleeve (42) and is blocked by the stopper (44); the push block (53) is slidably installed in the first box (52); the push block (53) divides the first box (52) into two spaces that are not communicated with each other; an elastic member (51) is arranged on one side of the push block (53); the elastic member (51) The member (51) is constructed to provide an elastic force for driving the push block (53) to move toward the other side. The space on the other side of the push block (53) is filled with liquid, and the connecting pipe (55) is connected to the space on this side. One end of the push rod (54) is connected to the push block (53), and the other end of the push rod (54) extends out of the first box (52) to connect with the driving member (72). When the stopper (44) is broken, the elastic member (51) drives the push block (53) and the push rod (54) to move, so as to flush the liquid into the connecting pipe (55) and drive the driving member (72) to dock with the rotating shaft (56) through the push rod (54).

5. The fireproof and explosion-proof door according to claim 4, characterized in that: The switching mechanism (5) further comprises a second housing (57) and a turbine (58); the second housing (57) is located in the sealed space (21); the rotating shaft (56) passes through the second housing (57); the turbine (58) is mounted on the rotating shaft (56) and is located in the second housing (57); the connecting pipe (55) passes through the sliding sleeve (42) and is connected to the second housing (57) and is aligned with the turbine (58).

6. The fireproof and explosion-proof door according to claim 5, characterized in that: The cooling mechanism (8) further comprises a third box (81), a connecting valve (83) and a plurality of nozzles (82); the third box (81) is arranged in the sealed space (21); the third box (81) is connected to the second box (57) through a pipeline; the third box (81) is configured to receive the liquid in the second box (57); the plurality of nozzles (82) are located on both sides of the door (1) and are connected to the third box (81); the connecting valve 83 is located on one side of the door (1) and is connected to the third box (81).

7. The fireproof and explosion-proof door according to claim 5, characterized in that: The driving member (72) includes a mounting plate (75), a guide rail (74), a motor (77), a first gear (76) and a second gear (73); the guide rail (74) is mounted on the door body (1); the mounting plate (75) is slidably mounted on the guide rail (74) and is connected to the push rod (54); the motor (77) is arranged on the mounting plate (75); the first gear (76) is arranged on the rotating shaft (56); the second gear (73) is arranged at the output end of the motor (77); the mounting plate (75) can be subjected to the thrust of the push rod (54) to drive the mounting plate (75) to move along the guide rail (74) so ​​that the first gear (76) and the second gear (73) are engaged.

8. The fireproof and explosion-proof door according to claim 7, characterized in that: The locking assembly (6) comprises a locking rod (62), a plurality of locking blocks (61), a telescopic rod (63) and a rack (65); the locking rod (62) is slidably mounted on the door body (1) or the cover plate (2); the locking rod (62) is configured to drive a plurality of locking blocks (61) to lock the door body (1) to the door frame (3) or unlock the door body; the telescopic rod (63) is slidably mounted on the cover plate (2); a spring is built into the telescopic rod (63) to keep the telescopic rod (63) in an extended state; the rack (65) is arranged on a section of the telescopic rod (63) and can be meshed with the first gear (76); the other end of the telescopic rod (63) is hinged to the locking rod (62); when the locking block (61) is switched to an unlocked state, the mounting plate (75) is driven to squeeze the telescopic rod (63) to a compressed state, so that the rack (65) and the first gear (76) are disengaged.

9. An emergency system for fire and explosion proof doors, characterized in that: It also comprises the fireproof and explosion-proof door as claimed in claim 6, and further comprises a plurality of temperature sensors, a detection module and a control module, wherein the plurality of temperature sensors are distributed on the door body (1); The detection module is configured with a temperature threshold, and the detection module obtains the temperature value of each temperature sensor, and when the temperature value is higher than the temperature threshold, obtains the detection area of ​​the corresponding temperature sensor and generates corresponding area information; The control module obtains the area information, controls a plurality of the nozzles (82) to align with the detection area of ​​the area information and opens valve bodies corresponding to the nozzles (82).

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