3782results about "Fireproof doors" patented technology

The utility model discloses a steel heat insulation fireproof door, which belongs to the technical field of fireproof doors, and comprises a frame, a door plate is hinged in the frame, a plurality of U-shaped fixing plates are fixedly connected to the surface of the top end of the frame, and the U-shaped fixing plates are linearly and symmetrically distributed. The top end of the U-shaped fixing plate is fixedly connected with an L-shaped fixing plate, the other end of the L-shaped fixing plate is fixedly connected with the frame, and a bidirectional heat insulation water curtain mechanism is arranged between the L-shaped fixing plate and the U-shaped fixing plate. By arranging the bidirectional heat insulation water curtain mechanism, the water curtain can absorb heat through evaporation, reduce the temperature of a fire area and reduce the temperature of the steel fireproof door directly contacted with flames, so that the door body is prevented from excessively fast thermal expansion and deformation in a fire, and the water curtain not only can reduce the temperature, but also can effectively isolate a fire source, so that the service life of the steel fireproof door is prolonged. Direct contact of flames to the surface of the fireproof door is reduced, and fire spreading speed is inhibited.

In some embodiments, the invention provides a multiple-pane insulating glazing unit having a between-pane space. An aerogel sheet is located in the between-pane space. Other embodiments provide methods of manufacturing such an IG unit. Further, some embodiments of the invention provide a glazing assembly that includes such an IG unit. Certain embodiments of the invention provide a spacer having a seating structure for supporting an aerogel sheet, while other embodiments provide an aerogel sheet holder for supporting an aerogel sheet. Preliminary glazing assemblies are also provided.

The artificial intelligent fireproof smoke exhaust window comprises a ventilation window body, a window sash is arranged on the right side of the ventilation window body, fireproof sound insulation glass is installed in the window sash, the bottom end of the window sash is hinged to the bottom end of the right side of the ventilation window body, and a driving assembly is arranged between the window sash and the ventilation window body; a smoke exhaust assembly used for exhausting smoke outwards is arranged between the upper end of the ventilation window and the window sash. The driving assembly and the smoke exhaust assembly are arranged between the ventilation window and the window sash, the smoke alarm, the temperature sensor and the equipment box are arranged on the right side of the ventilation window, the equipment box can receive signals transmitted by the smoke alarm and control the electric telescopic rod to be started, and the electric telescopic rod drives the window sash to be opened; and meanwhile, in the opening process of the window sash, a T-shaped groove, a T-shaped block and a guide block can drive a movable plate to be overturned and opened, so that a fan corresponds to an exhaust channel, the fan exhausts smoke, the smoke exhaust effect is improved, and safety accidents are avoided.

The invention relates to the technical field of comprehensive pipe galleries, and provides a comprehensive pipe gallery cable fire intelligent identification and prevention and control linkage system. In the system, fire simulation is carried out on a comprehensive pipe gallery cable through a cable fire simulation device; the fire behavior of the cable in the pipe gallery is monitored in real time through the image acquisition unit, and the acquired simulated fire image information is transmitted to the deployed fire identification model in real time for fire identification, so that the fire identification result of the fire identification model is judged through the deployed fire early warning model. A fire extinguishing instruction or an early warning instruction is sent out according to the judgment result; further, the fire extinguishing linkage device responds after receiving the fire extinguishing instruction, and a self-made fire resisting shutter with a flexible steel brush is firstly started to block a fire point area; and then a telescopic end of an electric push rod mounted at the top of the pipe rack quickly extends out to crush a temperature sensing glass ball of the suspension type fire extinguisher, so that quick linkage prevention and control of the pipe rack cable fire are realized.

The invention relates to the technical field of fireproof equipment, in particular to an electrically-driven translation type heavy fireproof door which comprises a door body, a driving mechanism and a translation mechanism. The translation mechanism comprises a translation base and a nut sleeve, a mounting hole and a guide hole which penetrate through the two sides of the translation base are formed in the translation base, the nut sleeve and the lead screw form a thread transmission pair, the nut sleeve is rotatably mounted in the mounting hole, the guide rod is slidably connected in the guide hole, and a synchronous assembly is arranged in the translation base; when the door body moves to the tail end of the stroke, the circumferential constraint of the synchronous assembly on the nut sleeve is automatically relieved, so that the nut sleeve can freely rotate relative to the translation base. Therefore, the motor and the transmission system do not need to overcome the huge inertia of the door body to achieve forced stopping, the instantaneous load and locked-rotor risk of the motor are remarkably reduced, and meanwhile the impact stress borne by a mechanical transmission part at the terminal is greatly relieved.

The invention discloses a full-intelligent active sealing low-energy-consumption entrance door, and aims to provide an entrance door structure with active sealing performance, the sealing performance is better, the energy consumption is lower, the entrance door structure comprises a door frame and a door leaf, a door frame is arranged on the door frame, and a sealing air bag inflation and deflation device is arranged between the door frame and the door leaf. The sealing air bag inflation and deflation device comprises an air bag assembly arranged on the door frame in a matched mode, a controller arranged on the door frame and a door leaf driver, a transmission assembly is connected between the door leaf driver and the door leaf, the controller is in linkage connection with the air bag assembly, and when the door leaf is closed on the door frame under the action of the door leaf driver, the door leaf is inflated and deflated. The air bag assembly is automatically inflated and abuts against the door leaf, before the door leaf is opened under the action of the door leaf driver, the air bag assembly is automatically deflated and is arranged in the door frame, full-intelligent active sealing is achieved, good heat preservation and air tightness are achieved, a heat transfer system of the door leaf and the door frame is small, heat conduction of a door body system is small, and indoor energy consumption is effectively reduced.

The utility model discloses a steel door with high sealing performance, which comprises a door body and a door frame, the door body is connected with the door frame through a hinge, a plurality of fixing grooves are formed in the inner wall of the door frame, expansion sealing strips are fixedly arranged in the fixing grooves, a first moving assembly is arranged on the front side of the door frame, and a second moving assembly is arranged on the front side of the door frame. A first elastic sealing strip is arranged on the front side of the door frame through a first moving assembly, a second moving assembly is arranged on the front side of the door frame, and a second elastic sealing strip is arranged on the front side of the door frame through a second moving assembly. When the steel door is opened, the expansion sealing strip can rapidly and automatically expand to block a gap between the door body and the door frame, meanwhile, the first elastic sealing strip can be moved to be in contact with the door body and the door frame through the first moving assembly, the second elastic sealing strip can be moved to be in contact with the door body and the door frame through the second moving assembly, and therefore the sealing performance of the steel door can be improved conveniently; smoke is prevented from entering a room from a gap between the door body and the door frame.

The invention discloses a steel-wood composite heat insulation fireproof door, and relates to the technical field of fireproof doors. The steel-wood composite heat insulation fireproof door comprises a mounting frame structure, a fireproof door leaf structure is hinged to the inner side of the mounting frame structure, a protective observation window structure is arranged on the inner side of the fireproof door leaf structure, and a locking structure is arranged on the front side of the mounting frame structure. Through the arrangement of the fireproof door leaf structure and the combined design of the fireproof filling ceramsite layer, the fireproof perlite plate layer, the rock wool layer, the heat insulation cotton layer and the flame-retardant sealing layer in the fireproof door leaf structure, the strength and stability of the door body are enhanced, the heat insulation effect is remarkably improved, the fireproof filling ceramsite layer and the fireproof perlite plate layer serve as inner layer materials, and the fireproof filling ceramsite layer and the fireproof perlite plate layer serve as outer layer materials; the door body has excellent fire resistance and heat insulation performance, invasion of high-temperature flames and heat can be effectively blocked, the rock wool layer and the heat insulation cotton layer serve as middle layer materials, the heat insulation effect of the door body is further improved, and heat transfer is reduced.

The utility model discloses a fire door with a smoke-proof effect for a fire passage, comprising a door cover, the door cover is connected to a first door panel via a rotating shaft, the door cover is connected to a second door panel via a rotating shaft, the first door panel and the second door panel are fixedly connected to a sleeve frame on the outside, a strip plate is inlaid inside the sleeve frame, the top of the strip plate is connected to a sealing frame, a sealing plate is inlaid inside the sealing frame, and a threaded rod is arranged outside the strip plate. The fire door with a smoke-proof effect for a fire passage is provided with a sleeve frame, a strip plate, a sealing plate, a sealing frame and other structures on the outside of the door body, so that the smoke-proof effect of the fire door can be improved. When an accident occurs, after the fire door is closed, the strip plates inside the sleeve frame are moved in sequence, so that the sealing plate inside the sealing frame seals the gap, reducing the flow of smoke to the evacuated personnel, thereby reducing the impact on the personnel's body, so that the smoke-proof effect of the fire door is enhanced during use.

An autonomous grid storage system arranged in a warehouse space. The autonomous grid storage system is divided within the warehouse space, for example on a single floor of said space, into a plurality of sub grids separated by fire walls. One or more bridges pass through openings in the fire wall to allow bin handling vehicles to traverse between the sub grids. The openings are provided with closable fire door.

The utility model discloses an A60 fireproof door for a marine ship, which comprises a left door leaf and a right door leaf which are respectively arranged on a door frame through hinges. The door frame, the left door leaf and the right door leaf are each of a structure formed by splicing a plurality of plates. The door frame, the left door leaf and the right door leaf are all filled with fireproof cotton, and fireproof rubber strips and JC rubber strips are additionally arranged. The fireproof door is applied to objects such as marine transportation energy storage containers. According to the utility model, the fireproof door can be used in severe working conditions on the sea through typical marine transportation parts; the fireproof door steel plate frame is filled with fireproof cotton to ensure that the fireproof grade is met; the door slot gap is reasonable, the fireproof door can be opened even if the fireproof door deforms while the airtightness is met, flame retardance and heat resistance are effectively achieved, and smoke is prevented from overflowing; the bottom end of the door lock is changed into a crescent lock head and a matched lock seat from a bolt type structure, so that the situation that the door is difficult to open due to deformation is further reinforced.

The invention relates to the technical field of fireproof windows, and discloses a novel detachable fireproof window device which comprises a window frame and glass, the glass is installed in the middle of the window frame, the window frame comprises two transverse rods and two longitudinal rods, the two transverse rods and the two longitudinal rods are symmetrically distributed, and clamping assemblies are connected between the transverse rods and the longitudinal rods. The transverse rods and the longitudinal rods are sequentially and detachably connected end to end in a rectangular mode through the clamping assemblies, the glass is provided with limiting blocks, the limiting blocks are slidably installed on the side faces, close to the middle of the window frame, of the longitudinal rods, and after the glass is placed in the middle of the window frame, the limiting blocks can automatically abut against the glass. The driving assembly drives the limiting block to slide and drives the clamping assembly to operate. In the whole using process, glass can be limited through the limiting blocks which automatically slide out, so that workers do not need to be arranged for supporting the glass, the installation process can be greatly simplified, meanwhile, the number of the workers is reduced, and the installation cost is reduced.

The utility model discloses a top-hung window with good thermal insulation performance, which belongs to the technical field of top-hung windows, and is characterized by comprising two window outer frames and a sash mullion, one side, close to the sash mullion, of each window outer frame is bolted with the sash mullion, a rectangular conversion frame is bolted between the right side of the sash mullion and the left side of the right window outer frame, and the right side of the right window outer frame is bolted with the rectangular conversion frame. A window mullion is connected to the left side of the sash mullion in a bolted mode, outward-opening window sashes are arranged at the top and the bottom of the window mullion correspondingly, the tops of the outward-opening window sashes are rotationally connected with the window outer frame on the left side, and window sash glass is arranged in the outward-opening window sashes and the rectangular conversion frame correspondingly. However, the top-hung window is generally of an outward opening type and is mainly connected with the window frame through structures such as hinges, so that the window sash and the window frame are crossed in a sealing manner, the heat preservation and heat insulation performance is poor, use is not facilitated, and the hint effect is affected.

The utility model provides a sound insulation steel fireproof door, which belongs to the technical field of fireproof doors and comprises a door frame body. The number of the limiting frames is two, the two limiting frames are fixedly connected to the two side ends of the door frame body correspondingly, and sliding grooves are formed in the two limiting frames correspondingly; the number of the positioning assemblies is two, each positioning assembly comprises a positioning plate, two sleeves and two sliding rods, and the two sliding rods are fixedly connected to the inner wall of one side of the sliding groove; by using the device, the door frame main body is positioned by the positioning assembly, tools such as an external bracket are not needed to position the door frame main body, and the operation is simpler, more convenient and quicker.

The utility model belongs to the technical field of railway station building construction and fire protection, and particularly relates to a fireproof type shielding door machine structure which comprises a shielding door and a concrete side plate serving as an upper supporting structure, and a steel structure frame and a fireproof door machine top box are fixed on the concrete side plate. Assembly gaps among the concrete side plates, the shielding door and the steel structure frame are blocked through fireproof structures, and each fireproof structure comprises a fireproof combined component and a fireproof cloth felt. The platform screen door system can be suitable for various current railway stations, effectively solves the fireproof safety problem of passengers in the current railway stations on the platform screen door system, and ensures the safety of fire rescue. Especially for an underground atrium type railway station, adverse effects on life safety of passengers and station operation evacuation when a train fire occurs are reduced to the maximum extent.

Disclosed in the present invention are a sunshade system with independently adjustable thermal insulation and shading performance and a control method therefor. The sunshade system with independently adjustable thermal insulation and shading performance mainly consists of a glazing system, a window frame, a sunshade mechanism, and a monitoring mechanism. A solar radiation sensor and an outdoor air temperature sensor in the monitoring mechanism are used to collect outdoor solar radiation data and air temperature data in real time, and the data is transmitted to a central processing unit; and on the basis of a sun-shading area ratio prediction model and according to measured values from the solar radiation sensor and the temperature sensor, the central processing unit extracts geometric parameters of an external window to determine the unfolding degree of a roll film. The present disclosure guarantees year-round thermal environment and day lighting effect in the interior of a building, and reduces the air conditioning and heating energy consumption of the building.

The present utility model relates to the field of roll-on / roll-off apparatuses. Disclosed is an airtight door for a passage apparatus of a roll-on / roll-off ship, the airtight door comprising an inclined ramp, a door body and a horizontal passage, wherein the door body is arranged between the inclined ramp and the horizontal passage; the door body is hinged to the horizontal passage by means of a hinge having an oblong hole; a sealing assembly is provided on the door body; a door frame is provided on the horizontal passage; the door body and the door frame are arranged to fit each other, and the door body and the door frame are both obliquely arranged; a push-pull device is mounted in the horizontal passage; a slider is connected to one end of the push-pull device; and a support connecting rod is hinged to the slider, and the support connecting rod is hinged to the door body. The airtight door for a passage apparatus of a roll-on / roll-off ship provided in the present utility model can make full use of the door's own weight to perform compression sealing, has strong airtightness and a good sealing effect, is safe, stable and reliable, has a simple structure, and is easy to maintain; besides this, the airtight door achieves a design without a door sill raised from the ground, does not hinder the passage of vehicles or the transport of goods, and has strong applicability.

The invention discloses a fireproof low-magnetism freight magnetic shielding door with a large magnetic shielding space. The fireproof low-magnetism freight magnetic shielding door comprises a door leaf; the door frame is mounted inside the portal frame; the locking mechanism assists in opening and closing the door leaf; wherein the door leaf is in butt joint with the door frame to form a magnetic shielding continuous structure; wherein the door leaf and the door frame are fixed and released through a locking mechanism; a sliding rail mechanism is arranged on the door leaf and matched with the door frame to achieve opening and closing. The door leaf and the door frame are each of a multi-layer composite structure which comprises a fireproof plate, a magnetic shielding layer and a copper layer, the multiple functions of fire prevention, magnetic shielding and electromagnetic shielding are achieved, and the overall performance and the space utilization rate are improved. And when the permalloy is prevented from being excessively pressed, the butt joint precision is improved, the magnetic leakage at the door slot is reduced, and the opening force is low while the high magnetic shielding effect is achieved.

The invention provides a double-layer composite type self-dust-filtering fireproof shutter which comprises a window frame, a filtering and preventing assembly is arranged in the window frame, a top plate is fixed to the top face in the window frame, a bottom box is fixed to the bottom face in the window frame, a plurality of fireproof plates are arranged between the bottom face of the top plate and the top face of the bottom box, and synchronous assemblies are connected between the side walls of the fireproof plates. A rotating column is arranged in the fireproof plate, the top end of the rotating column is rotationally connected into the top plate, the bottom end of the rotating column is rotationally connected into the bottom box, the bottom end of the rotating column is sleeved with a gear, a limiting plate is fixed into the bottom box, a toothed plate is attached to one side of the limiting plate, and one side of the gear is in meshed connection with the toothed plate. A reset assembly is arranged between the side wall of one fireproof plate and the side wall of the bottom box. The reset assembly is pulled by adjusting the turnover mechanism, so that the single fireproof plate is driven to turn over, the bottom of the single fireproof plate is turned over and adjusted through driving of the gear and the toothed plate, the tops of the multiple fireproof plates are turned over synchronously in combination with the synchronous assembly, and adjustment operation is stable, easy and convenient.

The utility model provides a hidden type fireproof door which comprises a door frame, the inner wall of the door frame is connected with a fireproof door body in a rotating mode, a sealing device is arranged on the inner wall of the door frame, a handle and fireproof glass are arranged on the outer wall of the fireproof door body, and a treading type door opening device is arranged on the inner wall of the fireproof door body. The treading type door opening device comprises a pedal and a driven gear, the driven gear is driven to rotate when a person treads the pedal, the outer wall of the driven gear is fixedly connected with one end of a handle, by treading the arranged pedal, a connecting rod is driven to move, a toothed plate is driven to move downwards, the driven gear is driven to rotate in the moving process of the toothed plate, and therefore the door is opened. And meanwhile, the handle fixedly connected with the driven gear is driven to rotate, so that the handle does not need to be manually opened by a person, and the situation that the person is scalded when the person holds the handle to open the fireproof door body in a fire disaster can be prevented.

The marine fireproof watertight door with the cooling function comprises a door plate, the door plate is rotationally connected with a closed frame, a plurality of inserting grooves are formed in the right side of the closed frame, first reinforcing mechanisms and second reinforcing mechanisms are installed on the front side of the door plate, and the second reinforcing mechanisms are located between the first reinforcing mechanisms. A controller is fixedly mounted at the bottom of the door plate, an auxiliary threaded hole is formed in the front end of the outer side of the second reinforcing mechanism, a fixing mechanism is arranged at the front end of the outer side of the second reinforcing mechanism, the first reinforcing mechanism comprises an automatic telescopic rod, a first inserting block and a first mounting shell, and the automatic telescopic rod is fixedly mounted on the first mounting shell. The output end of the automatic telescopic rod is fixedly connected with a first insertion block. The marine fireproof watertight door with the cooling function has the cooling function and is provided with multiple reinforcing mechanisms, so that the leakproofness of the door is improved, the handle is conveniently locked, and the fixing screws are conveniently placed.

The invention relates to the technical field of fireproof doors, and discloses an intelligent monitoring device and method for a fireproof door and a fireproof door sequencer. According to the intelligent monitoring device and method for the fireproof door and the fireproof door sequencer, high-precision monitoring of the spatial attitude of a door leaf is achieved through a nine-axis IMU sensor, an encoder and a six-dimensional force sensor are combined in the sequencer, and a multi-dimensional sensing system is constructed; on the basis of a door leaf-sequencer coupling dynamics model and an LSTM life prediction algorithm, mechanical faults can be warned in advance; through a three-level early warning mechanism and LoRa emergency broadcast, a door closing strategy is dynamically adjusted in a fire disaster, the effectiveness of an escape channel is improved, the problems of single perception, rough diagnosis and linkage delay of a traditional system are solved, and the safety of a fireproof door is improved.

The invention provides coated glass and vehicle window glass. The coated glass comprises a substrate and a low-permeability heat insulation layer arranged on at least one surface of the substrate, the low-permeability heat insulation layer comprises at least two dielectric layers and at least two absorption function layers which are arranged in a stacked mode, and each absorption function layer is located between the two adjacent dielectric layers; the visible light transmittance of the coated glass is less than or equal to 15%. By arranging the low-transmittance heat insulation layer, the coated glass has lower visible light transmittance TL and lower radiance e, and can replace a dark PVB (Polyvinyl Butyral) membrane in related technologies, so that the coated glass has the effects of low cost, simplicity in manufacturing and production and privacy protection. Moreover, the coated glass can be independently used as the vehicle window glass and can also be made into the vehicle window glass, heat can be blocked, a sunshade curtain in a vehicle is omitted, and therefore a larger height space in the vehicle is obtained, and the use experience of a user is improved.

The present disclosure relates to a push rod lock for a fire door and a control method thereof. The push rod lock comprises: a housing; a lock tongue; a toggle plate; a push rod; an electromagnetic telescopic assembly having a sliding pressure block that can be extended or retracted by electromagnetic control; a lock latch rotating assembly, the lock latch rotating assembly being used to unlock the door by a key; a first sensing element corresponding to the rotating block; a second sensing element corresponding to the lock tongue; a third sensing element corresponding to the push rod; a verification device; a prompting device; a controller, the input end of which is respectively connected to the first sensing element, the second sensing element, the third sensing element and the verification device signal, and the output end is respectively connected to the electromagnetic telescopic assembly and the prompting device signal. The control method is applied to the above-mentioned push rod lock. The present disclosure can realize the management of personnel entry and exit, and has multiple status detection and prompting functions, which can meet the usage needs of various types of users, and at the same time has the advantages of low energy consumption, low heat generation, long service life and high reliability.

This application relates to the technical field of utility tunnels, and provides an intelligent identification and prevention and control linkage system for cable fires in utility tunnels. In this system, a cable fire simulation device is used to simulate cable fires in the utility tunnel; an image acquisition unit is used to monitor the cable fire behavior in the tunnel in real time, and the collected simulated fire image information is transmitted to the deployed fire identification model in real time for fire identification, so as to judge the fire identification results of the fire identification model through the deployed fire warning model, and issue a fire extinguishing command or a warning command according to the judgment results; furthermore, after receiving the fire extinguishing command, the fire extinguishing linkage device responds, and the self-made fireproof rolling shutter with flexible steel brushes is first activated to block the fire point area; subsequently, the telescopic end of the electric push rod installed on the top of the tunnel quickly extends to break the heat-sensitive glass ball of the suspended fire extinguisher, realizing the rapid linkage prevention and control of cable fires in the tunnel.

The invention discloses a steel heat-insulation fireproof door in the field of fireproof doors, which comprises a mounting frame and a door frame connected to the side surface of the mounting frame, a rotating bracket connected to the side surface of the door frame, a rotating shaft rotatably connected to the rotating bracket, a transmission gear connected to the top of the rotating shaft, a connecting piece connected to the side surface of the rotating shaft, and a rotating door connected to the other end of the connecting piece, according to the device, the unlocking stability of the fireproof door in the high-temperature environment can be effectively improved, the influence of high temperature on the fireproof door can be avoided by adopting a sliding unlocking mode, meanwhile, the use of a lock head of a rotating structure is avoided, the safety of the fireproof door is improved, and the service life of the fireproof door is prolonged. Therefore, the risk of failure of the device is reduced.

Door leaf or door blank (100, 102) - with at least one, in particular acoustic, core location (10, 12), - with at least one first chipboard layer (50) assigned to a surface of the core layer (10, 12), - with at least one of the core layer (10, 12) on its surface facing away from the first chipboard layer (50) assigned to the second chipboard layer (52), wherein at least one adhesive area (20) is provided on the mutually facing surfaces of the core layer (10, 12) and / or the chipboard layers (50, 52) in which the mutually facing layers (50; 10, 12; 52) are bonded or glued together, in particular by means of urea-formaldehyde adhesive (KUF) or melamine-urea-formaldehyde adhesive (MUF).

The invention discloses multifunctional mining waterproof and fireproof door hydraulic equipment which comprises a hydraulic oil tank. The bottom side of the hydraulic oil tank is connected with an oil outlet valve, and a liquid level meter is fixedly installed on one side of the hydraulic oil tank. When one of the first motor and the second motor breaks down, oil can be continuously supplied to the system by switching to the other motor, power is provided for opening, closing and sliding of a gate, a ditch door and a movable sliding rail under a mine, an energy accumulator can be connected to an oil way of equipment, hydraulic oil is injected into the energy accumulator, and the energy accumulator is connected with the other motor. If the energy accumulator leaks oil in the placing process, the pressure sensor can sense and start the motors to fill hydraulic oil into the energy accumulator, and when the first motor and the second motor both break down, the electromagnetic valve of the energy accumulator can be opened to supply oil to the hydraulic station, so that the pressure of the hydraulic station is kept constant; and through cooperative use of the manual reversing valve and the oil way electromagnetic valve, the control flexibility of the hydraulic station can be improved, and the hydraulic station can adapt to wider working scenes and requirements.

The utility model discloses an airtight door for channel equipment of a roll-on-roll-off ship, which relates to the field of roll-on-roll-off equipment and comprises an inclined ramp, a door body and a horizontal channel, the door body is arranged between the inclined ramp and the horizontal channel, the door body is hinged with the horizontal channel through a slotted hole hinge, and a sealing component is arranged on the door body. A door frame is arranged on the horizontal channel, the door body is matched with the door frame, the door body and the door frame are obliquely arranged, a push-pull device is installed in the horizontal channel, one end of the push-pull device is connected with a sliding block, a supporting connecting rod is hinged to the sliding block, and the supporting connecting rod is hinged to the door body. According to the airtight door for the roll-on-roll-off ship channel equipment, extrusion sealing can be carried out by fully utilizing the dead weight of the door, the airtight door is high in airtightness, good in sealing effect, safe, stable and reliable, simple in structure and easy to maintain, meanwhile, the design of no threshold protruding out of the ground is achieved, passing and transportation of vehicles or goods cannot be hindered, and applicability is high.