Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

1718results about "Fireproof doors" patented technology

Electrically-driven translation type heavy fireproof door

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.
Owner:WUXI HENGBANG FIRE EQUIP CO LTD

Fireproof heat-insulation energy-saving door and window structure

The utility model discloses a fireproof heat-insulation energy-saving door and window structure, and relates to the technical field of door and window structures. The window comprises an installation frame, a fixed window is fixedly installed on the inner side of the installation frame, a movable window is movably installed on the side, close to the fixed window, in the installation frame, and the bottom end of the movable window is rotationally connected with symmetrically-distributed guide wheels. When the movable window needs to be opened, the movable window is pulled towards the outer side of the mounting frame firstly, meanwhile, the guide wheels are driven to slide along the interiors of the vertical grooves, the guide wheels are made to move into the interiors of the transverse grooves, then the movable window is transversely moved towards one side of the fixed window, and the movable window is opened; the movable window is moved towards the side away from the fixed window, and when the guide wheels move to the positions corresponding to the vertical grooves, the movable window is pushed towards the inner side of the mounting frame, so that the movable window abuts against the sealing strips, the sealing performance of the movable window is improved, and therefore the indoor and outdoor isolation and energy-saving effects are kept.
Owner:LIAONING XINWASEN METAL DOORS & WINDOW CO LTD

Steel-wood composite heat insulation fireproof door

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.
Owner:GUANGDONG YUDUN FIRE PREVENTION TECH CO LTD

Sunshade System Capable of Independently Adjusting Thermal Insulation Performance and Sunshade Performance and Control Method Therefor

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.
Owner:SOUTH CHINA UNIV OF TECH

Airtight door for passage apparatus of roll-on / roll-off ship

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.
Owner:SHANGHAI FUXUN IND CO LTD

Fireproof door and intelligent monitoring device and method for fireproof door sequencer

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.
Owner:JIANGSU BOTE DOOR IND CO LTD

Fire door push rod lock and control method thereof

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.
Owner:金捍安全(广州)智能科技有限公司

Roadway fireproof door for coal mine

The utility model discloses a roadway fireproof door for a coal mine, which comprises a door frame and a door plate, the door plate is hinged on the outer wall of the door frame, a fireproof mechanism for preventing fire from spreading is arranged in the door frame, and a protection component for protecting the fireproof mechanism is arranged on the outer wall of the door frame. During use, the fireproof mechanism is installed on the door frame, when a fire occurs in a roadway, the fireproof mechanism can detect the temperature in the roadway, and when the temperature is high, the fireproof mechanism is automatically started and sprays water, so that the fire in the roadway is slowed down, meanwhile, the sprayed water can cool the door frame, and the service life of the door frame is prolonged; and by arranging the protection assembly, when the door frame and the fireproof mechanism are installed in the roadway, the humid environment in the roadway can affect the service life of the fireproof mechanism, at the moment, the protection assembly can prevent the fireproof mechanism from making direct contact with moisture, and the service life of the fireproof mechanism is prolonged.
Owner:GUODIAN JIANTOU INNER MONGOLIA ENERGY CO LTD +1

Smoke resistant fire door and method of use

This invention relates to the field of fire door technology, specifically a smoke-blocking fire door, including a fire door frame, a fire door body mounted on the fire door frame via hinges, a door closer connected to the top of the fire door frame at the top, a handle mounted on the fire door body, and a smoke-blocking device mounted on the fire door body. The smoke-blocking device comprises a housing, a shaking device, a plate, a foam bottle, a nitrogen cylinder, pipes, a connector, and a metal tube. This invention injects foam between the fire door frame and the fire door body. The foam from the foam bottle is injected into the space between the fire door body and the fire door frame through the metal tube. The foam expands upon contact with air, filling and sealing the space between the fire door body and the fire door frame, preventing smoke from a fire from spreading upwards through the stairwell.
Owner:JIANGYIN YAOSAI MARINE & LAND DECORATIVE MATERIALS CO LTD

Stainless steel glass fireproof door

The utility model relates to a stainless steel glass fireproof door which comprises a door frame, a fireproof door body and a dust cleaning assembly, and the fireproof door body comprises a stainless steel door frame rotationally installed on the door frame and fireproof tempered glass installed on the stainless steel door frame. The fireproof tempered glass comprises a first glass layer, a fireproof heat insulation layer arranged on one side of the first glass layer and a second glass layer arranged on one side of the fireproof heat insulation layer, the fireproof heat insulation layer is specifically made of glass wool, and the dust cleaning assembly comprises a lifting structure arranged in the stainless steel door frame and a dust cleaning structure arranged on the front side of the fireproof tempered glass. A lifting motor drives a threaded rod to rotate, the threaded rod drives a threaded ring to move, the threaded ring drives a threaded block to move, the threaded block drives a dust cleaning plate to move, the dust cleaning plate drives a dust cleaning pad to ascend and descend, the dust cleaning pad cleans dust on the surface of fireproof tempered glass, a user does not need to conduct dust cleaning work repeatedly in a time-consuming and labor-consuming mode, and the working cost is reduced; the practicability is improved.
Owner:ZHANJIANG JILONG CO LTD

A sealing structure for a highly flame-retardant fire door

The present invention discloses a sealing structure for a highly flame-retardant fireproof door, which comprises: a door frame frame, a door panel is rotatably provided on one side of which, a connecting room panel is fixed on the outer side surface of the door panel, a sealing connection structure is provided in parallel on one side of the door frame frame, and a plurality of modulation components are further provided on the door frame frame, and the modulation components are in contact with the sealing connection mechanism.
Owner:JIANGXI YUXIN FIRE FIGHTING EQUIP CO LTD

Intelligent window device coupled with electrochromism, photochromism and radiation refrigeration

The electrochromism, photochromism and radiation refrigeration coupled intelligent window device comprises a color changing module, a radiation refrigeration module, two glass substrates and a controller module, the color changing module comprises an electrochromic module, an electrochromic-photochromic coupling color changing module and a conductive diaphragm. On the basis of relatively independently controlling the visible light transmittance and the near-infrared transmittance based on electrochromism, the external illumination intensity is perceived through photochromism, the light transmittance is adaptively reduced, the problem that a traditional intelligent window is single in regulation and control mode and control strategy is solved, and the control effect is improved. Efficient control over the indoor environment through the intelligent window in the complex environment is effectively achieved; effective combination of the dimming glass and the radiation refrigeration technology is achieved, the problems that the temperature of the glass is high and heat is transferred indoors under the conditions that the transmittance of the glass is reduced and the absorptivity of the glass is increased are solved, the temperature of the glass is effectively reduced through the radiation refrigeration technology, the energy-saving efficiency is improved, and the service life of the glass is prolonged. And the dual requirements of a user on energy conservation and a comfortable environment are met.
Owner:SICHUAN UNIV

Heat-insulating fireproof rolling shutter door

The utility model relates to a heat insulation and fire resistance rolling shutter door which comprises a box assembly. The guide rail assembly is connected with the container assembly; the top of the door curtain assembly is connected with the container assembly, the two sides of the door curtain assembly are located in the guide rail assembly, the door curtain assembly can be driven by the container assembly to be stored and unfolded in the extending direction of the guide rail assembly, and the door curtain assembly comprises a plurality of door curtain parts rotationally connected end to end; wherein the door curtain part comprises a first door curtain part and a second door curtain part connected to the back face of the first door curtain part, a containing space is formed between the first door curtain part and the second door curtain part, and the containing space is suitable for being filled with fireproof heat insulation filler. Therefore, the national standard detection requirement can be met through a single curtain and a single rail in the mode that the middle of the door curtain component is filled with the fireproof heat insulation filler, water spraying protection does not need to be added, and the installation cost can be reduced while the installation space is saved.
Owner:BEIJING ZHICHENG DOORS IND CO LTD

Fire door for equipment room with ventilation and smoke prevention performance

The application discloses an equipment room fireproof door with ventilation and smoke prevention performance, and aims to provide a reasonable structure, fire resistance, good smoke prevention performance and ventilation and heat dissipation effect, which comprises a door frame, a door leaf and a hinge, a shutter device is arranged on the middle lower part of the door leaf, the shutter device comprises a shutter frame, a plurality of movable blades which are sequentially and movably connected on the shutter frame, a linkage assembly which is connected on the movable blades, a heat-sensitive assembly which is arranged on the shutter frame and used for controlling the operation of the linkage assembly, and an elastic member which is used for providing a restoring force for the linkage assembly, one end of the elastic member is fixed on the shutter frame, and the other end is connected with the linkage assembly.
Owner:ZHEJIANG XINGYUE SECURITY TECH CO LTD

Semitransparent organic photovoltaic window and preparation method and application thereof

The invention provides a semitransparent organic photovoltaic window and a preparation method and application thereof, and belongs to the technical field of building materials. The semitransparent organic photovoltaic window comprises a photovoltaic layer and low-emissivity glass which are arranged in a stacked mode, the photovoltaic layer comprises a glass substrate, a transparent electrode, a hole transport layer, an active layer, an electron transport layer, a metal electrode and a surface anti-reflection layer which are sequentially arranged in a stacked mode, and a vacuum layer is formed between the surface anti-reflection layer and the low-emissivity glass. The active layer is PCE10 <-2 > F: Y6, and the weight-average molecular weight of the PCE10 <-2 > F is 45000 to 120000 g / mol. The PCE10-2F with high weight-average molecular weight breaks through the contradiction between efficiency and light transmittance, an absorption peak is moved to near infrared (700-950 nm), overlapping with a human visual sensitive area is avoided, AVT is directly improved, the active layer is a full-narrow-band-gap system, and visible light transmittance and photoelectric conversion efficiency are improved at the same time.
Owner:INNOVATION CENTER OF YANGTZE RIVER DELTA ZHEJIANG UNIVERSITY

Fireproof device for new energy automobile parking space

The invention discloses an explosion-proof and fire-proof soft isolation device special for a new energy automobile in an underground parking space. The explosion-proof and fire-proof soft isolation device comprises a lifting fire resisting shutter, an intelligent control module and a locking mechanism. The upper end of the roller shutter is installed on a basement top plate through a rotating shaft, the roller shutter at the other end is tightly and firmly wound through a fastening device of a stainless steel square pipe pressing groove, three steel plate fasteners are arranged on the lower portion of a stainless steel square pipe and meshed and locked with a 50 mm electromagnetic valve locking embedded part embedded in the concrete ground, and a vertical fireproof barrier is formed. The control system supports automatic detection of vehicle state decline or manual remote control operation, and the roller shutter is made of single-layer A1-level reinforced fireproof glass fiber cloth (the damage peak value reaches 34884.8 N / m). The device is of a normally-closed standby type and is in the optimal fireproof isolation state without manual control, and associated losses caused by accidental detonation of the new energy automobile are greatly reduced or completely prevented. When the fire resisting shutter descends in place, if the wind power is large, the fire resisting shutter can be manually assisted in place. The fireproof roller shutter can be used for a basement parking space and can also be used for scenes such as an outdoor charging station with a shed (when the parking space is wide, the fireproof roller shutter can be directly fixed up and down to meet the anti-deflagration isolation requirement).
Owner:WENZHOU BOTAI FIRE PROTECTION TECHNOLOGY CO LTD

Fireproof window structure

The utility model relates to the technical field of building fire prevention, and discloses a fireproof window structure which comprises an installation part, a window body and fireproof glass. The mounting part comprises a transverse pipe and a vertical pipe, the transverse pipe and the vertical pipe are vertically arranged, and a space for mounting the window body is defined by the transverse pipe and the vertical pipe; the fireproof glass is arranged on the window body; the window body comprises an opening sash and an opening window frame, the opening window frame is fixedly connected with the transverse pipe or the vertical pipe, the opening sash is provided with fireproof glass and hinged to the opening window frame, a groove is formed between the opening sash and the opening window frame to contain fireproof rubber strips, and the fireproof glass is connected with the opening sash through fireproof structural adhesive or fireproof sealant. According to the scheme, the groove is formed between the opening sash and the opening window frame and used for containing the fireproof adhesive tape for fireproof sealing, the fireproof adhesive tape is more stable and not prone to failure, the fireproof glass and the opening sash are connected and sealed through the fireproof structural adhesive or the fireproof sealant, and the fireproof performance is further improved.
Owner:DONGCHENG BRANCH OF DONGGUAN HUAFENG CURTAIN WALLDECORATION ENG CO LTD

Platform slow release device and escape platform

The embodiment of the utility model provides a platform slow release device and an escape platform, and relates to the technical field of slow release devices. One end of the connecting part is connected with the movable end of the bearing platform; the running part is linked with the connecting part; the operation part is configured to be driven by the connecting part to do first movement when the movable end of the bearing platform is opened towards the outdoor side; and the slow release part is arranged on the fixed frame or the vertical surface of the building, and the slow release part is configured to apply opposite force for hindering the first movement to the operation part. By arranging the connecting part connected with the bearing platform and the operation part linked with the connecting part, the slow release part arranged in the fixed frame is adopted to slow down the movement of the operation part, so that the purpose of reducing the unfolding speed of the bearing platform is achieved, and the safety and stability of the unfolding process of the bearing platform are ensured.
Owner:刘阔天

Door device

When the upper part of the door body 1 is subjected to the heat of a fire and warps and deforms in a direction that separates it from the door frame 3, the leak of flames and smoke through the resulting gap is prevented, thereby improving fire resistance. [Solution] An upper recessed groove 4c is provided in the upper horizontal frame member 4 of the door frame 3 facing the door body 1. An upper sealing member 9, a spring 12, and a heat-deformable member 11 are provided in the upper recessed groove 4c. When the heat of a fire is applied, the heat-deformable member expands and deforms, causing the upper sealing member 9 to come into contact with the interior side panel 1e of the door body, which has warped due to the heat deformation.
Owner:SANWA SHUTTER CORP

Fireproof door leaf and fireproof door structure

The utility model relates to the technical field of fireproof doors, and discloses a fireproof door leaf and a fireproof door structure, the fireproof door leaf comprises a perlite layer unit, and a first fireproof plate layer, a second fireproof plate layer, a third fireproof plate layer and a fourth fireproof plate layer which are arranged in sequence, one end of the perlite layer unit is arranged between the first fireproof plate layer and the fourth fireproof plate layer, and the other end of the perlite layer unit is arranged between the second fireproof plate layer and the third fireproof plate layer. One ends of the perlite layer units are arranged between the first fireproof plate layer and the second fireproof plate layer, the other ends of the perlite layer units are arranged between the second fireproof plate layer and the third fireproof plate layer, keel units are arranged between the second fireproof plate layer and the third fireproof plate layer, and the keel units, the second fireproof plate layer and the third fireproof plate layer are arranged between every two adjacent perlite layer units. The fireproof door leaf is good in structural strength and high in fireproof and heat insulation reliability.
Owner:HESHAN TIANSHAN METAL MATERIAL PROD CO LTD

Aluminum alloy non-heat-insulation fireproof partition

The utility model discloses an aluminum alloy non-heat-insulation fireproof partition which comprises a steel inner lining plate, fireproof glass plates are symmetrically embedded in the centers of the front side and the rear side of the steel inner lining plate, and aluminum alloy isolation frames are symmetrically embedded in the opposite sides of the fireproof glass plates. The opposite sides of the aluminum alloy isolation frames are attached to the steel lining plate in a sealed mode, L-shaped embedding grooves are symmetrically formed in the opposite sides of the aluminum alloy isolation frames in a cross mode, L-shaped embedding plates are embedded into the opposite sides of the front and back of the L-shaped embedding grooves in a matched mode, and a plurality of annular grooves are formed in the L-shaped embedding plates in a front-back penetrating mode. Positioning screw rods are in threaded connection with the interiors of the ring grooves, sealing ring covers are fixedly connected to the front and back opposite ends of the positioning screw rods, and the front and back opposite sides of the sealing ring covers are embedded into the inner wall of the L-shaped embedded plate and are in front and back sliding fit with the L-shaped embedded plate. Waste is avoided, and economic losses are reduced.
Owner:STARWARD FIRE PROTECTION TECH (SHENZHEN) CO LTD

A folding overhead fire door

This invention discloses a folding swing fire door, including a door frame. An installation groove is formed on the top inner side of the door frame, and an automatic pushing structure for automatic closing in case of fire is provided within the installation groove. Guide rail grooves are formed on both sides of the installation groove, and several sliding casters are installed within the guide rail grooves. This folding swing fire door combines the space-saving and flexible opening and closing characteristics of traditional folding doors. In the event of a fire, the generated high temperature is transferred to the automatic pushing structure through the main heat strip, triggering it to push the door open. With the cooperation of the sliding casters and guide rail grooves, the folding door is automatically pushed and closed to isolate the fire from the door frame, eliminating the need for manual risk-taking to close it.
Owner:CHINA CONSTR EQUIP & ENG CO LTD

Fireproof window structure

The utility model relates to the technical field of fireproof windows, in particular to a fireproof window structure, which comprises a window sash, a glass window, a reinforcing plate and a fireproof strip, the glass window is arranged at the top of the window sash, the bottom of the glass window extends into a first assembly cavity in the glass window, the reinforcing plate is arranged at the bottom in the first assembly cavity, and the fireproof strip is arranged between the reinforcing plate and the glass window. The top face of the fireproof strip is a complete plane, a first limiting piece is fixedly arranged at the cavity bottom of the first assembling cavity, a second limiting piece is fixedly arranged on the side wall of the reinforcing plate, the first end of the fireproof strip is detachably connected with the first limiting piece, and the second end of the fireproof strip is detachably connected with the first limiting piece. When the fireproof door is used, the fireproof strip is fixed on the reinforcing plate through the first limiting piece and the second limiting piece, and the top surface of the fireproof strip is a complete plane, so that the top of the fireproof strip is not hindered when being heated and expanded, the fireproof strip can be correctly attached to the bottom of a glass window, and the fireproof strip is ensured to have good heat insulation performance.
Owner:SHANGHAI RUIHU IND CO LTD

Thermal and sound insulation broken bridge aluminum window

ActiveCN224351877UGuaranteed brightnessEffective insulationFireproof doorsLight protection screens
The utility model discloses a kind of heat and sound insulation broken bridge aluminium windows, including window frame body, two layers of protective glass are installed in the window frame body inside, fixed plate is installed in the both sides of window frame body, the outer side of window frame body is equipped with multiple longitudinal distribution's sunshading board, lifting plate is installed in the inside of fixed plate, adjusting frame is installed on the fixed plate.The beneficial effects of the utility model are that by installing sunshading board outside protective glass, sunlight can be shielded, and heat insulation can be carried out, sunlight can pass through the gap between sunshading board and irradiate to indoor according to the principle of diffuse reflection, provide light for indoor under the condition of avoiding direct sunlight, according to the different angle of sunlight irradiation to window in different seasons, the position of lifting plate is adjusted and the angle of sunshading board is changed by adjusting frame, effective heat insulation can be carried out and indoor brightness is guaranteed, and use is more convenient.
Owner:HEBEI TENGCHANG TECH CO LTD

Anti-deformation heat and fire resistant door for fire engineering

The utility model relates to fire engineering technical field especially fire engineering is with preventing deformation's heat -proof fire door, including door frame, still including door shell and door lock component, door frame one side fixedly connected with door shaft, door frame one side fixedly connected with door shaft, the material that this device adopts through door shell is steel sheet to improve the strength of door, prevent deformation, the material that fills the layer adopts is magnesium oxide to improve the heat -proof of door, through being provided with first fire -retardant expansion seal and second fire -retardant expansion seal on door frame and door shell, thereby the door gap is sealed, improves the leakproofness, can effectively block the flue gas, through first spring drive movable block in the inside slide of guide block, movable block drive toothed plate removal, toothed plate drive gear rotation, gear drive first rotation axis rotation, first rotation axis drive second connecting rod rotation, second connecting rod drive first connecting rod in the inside rotation of fixed block, thereby the door shell is automatically closed, prevents the fire, flue gas spreads.
Owner:GUANGDONG SHUNDE ZHENXIONG FIRE EQUIP CO LTD

Fireproof fire-fighting wood-plastic door

The utility model relates to a fire-resistant fire-fighting wood-plastic door, and belongs to the technical field of wood-plastic doors, the fire-resistant fire-fighting wood-plastic door comprises a seam covering plate and a door plate frame, the surface of the seam covering plate and the surface of the door plate frame are both coated with fire-resistant coatings, the seam covering plate comprises a profile frame and rock wool, the inner side of the profile frame is filled with the rock wool, and the inner side of the profile frame is coated with the fire-resistant coatings. An inner cavity corresponding to the door plate frame is formed in the side face, facing the door plate frame, of the profile frame. According to the fire-resistant fire-fighting wood-plastic door, the structure of the wood-plastic door is subdivided into the seam covering plate and the door plate frame, flame-retardant structures such as rock wool are additionally arranged in the seam covering plate to delay combustion, the high-temperature resistance of the front face of the wood-plastic door is improved, and the possibility that the wood-plastic door serves as fuel to burn is reduced; and the cover plate and the fireproof strip are matched to expand and release at high temperature, so that the wood-plastic door can spontaneously release the flame retardant to delay combustion in a high-temperature state, and the fireproof capability of the wood-plastic door is effectively improved.
Owner:HUANGSHAN SUNWAY ECO-BUILDINGS CO LTD

Fireproof door with ventilation function

This utility model provides a fire door with ventilation function, including a door leaf, a door frame, and a ground layer. The door frame stands on the ground layer, and the door leaf is embedded in the door frame and connected to the door frame by hinges. The lower half of the door leaf is embedded with a fire-resistant device, which includes a ventilation blade frame, ventilation blades, fire-resistant blade shafts, fire-resistant blades, a temperature sensor, and a transmission mechanism. Fire-resistant blades are arranged within the ventilation blade frame by several equidistantly spaced fire-resistant blade shafts. The temperature sensor and transmission mechanism are located on one side of the ventilation blade frame. The temperature sensor is communicatively connected to the transmission mechanism, which drives several fire-resistant blade shafts to rotate synchronously, thereby opening and closing the fire-resistant blades to achieve rapid switching between normal ventilation and fire isolation functions. This utility model aims to solve the problems of poor ventilation performance, easily damaged ventilation devices, and poor fire resistance and sealing of traditional fire doors, thereby optimizing ventilation performance, improving the durability of ventilation devices, and enhancing fire resistance.
Owner:POWERCHINA HUADONG ENG CORP LTD

Fire and explosion proof integrated protective door

The utility model relates to a fire and explosion integrated protection door belongs to the protection door field, for solving the crystallization that has not cleaned will be extruded between the door panel and the door frame sealing strip, not only will accelerate the aging, damage of sealing strip, reduce its service life, will also lead to the sealing is not strict, cannot effectively block the smoke and fire, high temperature and explosion shock wave, and then causes the fire spread, secondary explosion etc. accidental injury, seriously influence the fire and explosion core performance of protection door, can not satisfy the safety protection demand of the area of ship, a fire and explosion integrated protection door, including protection door main part, the door frame of rotation connection in the outside of protection door main part, through spring energy storage release drive rotary lever rotation, drive the scraper along the sealing strip inside profile fit rotation, thereby in the protection door closing process automatically removes the sea salt crystallization that adheres on the sealing strip, avoids the omission problem of artificial periodic cleaning, guarantees the air tightness and fireproof sealing performance of protection door.
Owner:WUXI HAILIAN SHIP INTERIOR DECORATION CO LTD