1826results about "Door leaves" patented technology

The present subject matter discloses an integrated door assembly for a prefabricated shed constructed from modular plastic components or panels. The door assembly comprises a door panel that includes a door side panel and a door body, which are integrally formed through blow molding. The door body is connected to the door side panel via an embedded folding groove, featuring a thinner plastic material at the fold to allow for flexibility and ease of movement. Additionally, the door assembly incorporates a pivotable frame bracket that encases the edges of the hinged, rotating panels, enhancing both strength and durability.

A Garage door with a secure door assembly including a garage door with a horizontally extending panel having a framework including parallel spaced apart horizontal members extending along a top edge and a bottom edge thereof and a secure package door assembly carried by the horizontally extending panel. The secure package door including an outer portion and an inner portion coupled together with the parallel spaced apart horizontal members captured therebetween. A door coupled by hinges to the outer portion and moveable between an open position and a closed position, A locking mechanism is included for locking the door in the closed position.

The invention discloses a light threshold-free flood-proof protective air-tight door which comprises a threshold-free door frame, two door leaves and a sealing piece. A sealing plate is arranged at the bottom of the doorsill-free door frame and provided with an insertion hole. The two door leaves are hinged to the two sides of the doorsill-free door frame, and each door leaf comprises two panels and a honeycomb interlayer welded between the two panels; the sealing piece comprises a movable sealing strip, a butt joint sealing strip and a door frame sealing strip. The movable sealing strip is connected with the lower bolt, and when the lower bolt is downwards inserted into the insertion hole, the movable sealing strip seals a gap between the bottom of the door leaf and the sealing plate; the two butt joint sealing strips are arranged between the two door leaves respectively; the door frame sealing strip is arranged between the side face of the door leaf and the inner side of the doorsill-free door frame. When the two door leaves are closed, the two butt-joint sealing strips abut against each other, and the door leaves abut against the inner side of the doorsill-free door frame through the door frame sealing strips. By means of the arrangement, the doorsill-free design facilitating passing can be achieved, and high strength and good flood prevention and protection sealing performance can be achieved.

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 present application relates to the field of door core material preparation, and particularly relates to a heat-insulating and fireproof door core material for security doors and a preparation method thereof, comprising a protective layer, a heat-insulating layer and a core part, wherein the core part comprises a plurality of springs arranged at equal intervals and fixed plates arranged at both ends of the springs; the heat-insulating layer is arranged outside the fixed plates; and the protective layer is bonded to the outside of the heat-insulating layer and is a foamed aluminum plate, which is prepared as follows: S1, cutting the fixed plates and then welding spring fixing bases and fixing buckles; S2, arranging and fixing the springs; S3, weighing the component materials of the heat-insulating layer, adding water and mixing uniformly; S4, based on a core material preparation system, sequentially completing pouring, jarring, smoothing and heat-insulating drying of the two heat-insulating layers after setting; S5, preliminarily determining whether the preparation of the heat-insulating layer meets preset standards according to the measured compressive strength; and S6, bonding the protective layer. On the basis of ensuring the performance of the core material, the present application can also be applied to the door core of security doors with different thicknesses.

The utility model discloses a door pocket of an outward opening door leaf assembly. The door pocket comprises an auxiliary pocket upright, an indoor side flat plate line and an outdoor side flat plate line, the auxiliary sleeve upright is used for being arranged on the side face of a door opening wall. The auxiliary sleeve upright is of an integrated structure or a spliced structure; the indoor side flat plate line is connected to one side of the auxiliary sleeve upright and is positioned on the indoor side in the thickness direction of the door opening wall body; the outdoor side flat plate line is connected to the other side of the auxiliary sleeve upright and is positioned on the outdoor side in the thickness direction of the door opening wall body, and the outdoor side flat plate line is a metal outdoor side flat plate line; a door closing limiting part protruding out of the auxiliary sleeve vertical stile is arranged on the side, facing the door leaf, of the outdoor side flat plate line. The door closing limiting part is located at the end, facing the indoor space, of the outdoor side flat plate line. The outdoor side flat plate line of the door pocket is provided with the door closing limiting part, a door blocking strip component in the prior art is omitted, the door blocking strip does not need to be assembled, the assembling steps of the door pocket are reduced, and then the assembling efficiency is improved. The utility model further discloses an outward opening door leaf assembly applying the door pocket.

The utility model discloses a door plate and a cabinet body. The door plate comprises a substrate. The substrate comprises an upper surface, a lower surface, a left surface, a right surface, a front surface and a rear surface; a frame is arranged on the front surface and comprises an upper frame, a left frame, a lower frame and a right frame, the upper frame comprises an upper rear edge, an upper top edge, an upper-upper connecting edge, an upper bevel edge, an upper-middle connecting edge, an upper front edge, an upper-lower connecting edge and an upper bottom edge in sequence, the width of the upper frame ranges from 12 mm to 30 mm, the thickness of the upper frame ranges from 5 mm to 12 mm, and the included angle between the upper rear edge and the upper bottom edge ranges from 30 degrees to 60 degrees. The upper frame is connected with the front surface; the left frame, the lower frame and the right frame are the same as the upper frame in structure. According to the utility model, the shape of the frame is improved, the width is reduced, the similar line design is smoother, more flexible and unique, and has enough stereoscopic impression and aesthetic degree, so that the door plate is more layered and decorative visually, the process is simple, and meanwhile, the manufacturing cost is reduced.

The invention discloses a light fixed doorsill flood-proof protective air-tight door. The light fixed doorsill flood-proof protective air-tight door comprises a door frame, two door leaves and two linkage locking assemblies. The two door leaves are hinged to the two sides of the door frame, and each door leaf is of an aluminum honeycomb sandwich structure. The two linkage locking assemblies correspond to the two door leaves correspondingly. The linkage locking assembly comprises a driving rotary disc, an upper linkage rod, a lower linkage rod, an upper plug pin and a lower plug pin. An upper chassis is hinged to the upper bolt and is connected with the door leaf; a lower chassis is hinged to the lower bolt and is connected with the door leaf; a main chassis is hinged to the driving rotary disc and connected with the door leaf. Two ends of the upper linkage rod are respectively hinged with the upper bolt and the driving turntable; two ends of the lower linkage rod are respectively hinged with the driving turntable and the lower bolt; and when the driving turntable rotates by an angle, the upper bolt and the lower bolt synchronously rotate to respectively rotate the upper frame and the lower frame of the door leaf. By means of the arrangement, the door leaf is designed to be light, and the locking structure of the door leaf can achieve the functions of being reliable in driving and high in reaction efficiency.

The utility model discloses a door pocket and door leaf assembly. The door pocket and door leaf assembly comprises an auxiliary pocket upright, the indoor side flat plate line is connected to one side of the auxiliary sleeve upright and is positioned on the indoor side of the door opening wall body; the outdoor side flat plate line is connected to the other side of the auxiliary sleeve vertical stile and positioned on the outdoor side of the door opening wall, the outdoor side flat plate line is made of metal, and the side, facing the door leaf, of the outdoor side flat plate line protrudes out of the auxiliary sleeve vertical stile to form a door closing limiting part. According to the utility model, the door closing limiting part is arranged on the outdoor side flat plate line, so that the outdoor side flat plate line has the function of a door stop line, not only can shield a glue line, but also can serve as the door stop line, and as the door closing limiting part is directly formed on the outdoor side flat plate line, the depth of the outdoor side is reduced, and on the premise of keeping an inward opening mode, the door closing limiting part can be used as the door stop line. The outer side of the door leaf and the outer side of the outdoor side flat plate line can be kept closer to each other and even on the same plane. The outdoor side flat plate line is made of metal, and compared with a wooden door stop line, the outdoor side flat plate line is more resistant to impact and does not have the problems of cracking, deformation and the like.

A door system comprises a door frame adapted to be mounted within an opening, a door pivotally attached to the door frame, an AC / DC converter configured to be electrically connected to an AC power unit operably associated with the door system, a slot in the door, a pre-wired receptacle disposed in the slot, and a DC electric device removably disposed in the pre-wired receptacle and electrically connected to the AC / DC converter through the electrical connector of the pre-wired receptacle. The pre-wired receptacle comprises an electrical connector electrically connected the AC / DC converter.

A green energy-saving cold store is provided, including a cold room, a platform, a machine room, and a refrigerating system. A drying layer (1) is arranged below the first floor of the cold room; a ground heat insulation layer (2) is moved downwards into the drying layer (1) and is separated from a first floor slab (3); an inner wall (4), an internal partition wall, and the wear-resistant waterproof floor (33) are directly located on the first floor slab (3) and integrated with a frame structure; a peripheral protective wall adopts a light steel structure wall surface (14), and is connected to the frame structure by means of ball joint tie beams (15) at the intersection points between frame beams and columns. The cold store is energy-saving and environment-friendly, and has good anti-seismic and fireproof performance.

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.

The utility model relates to the technical field of hinges, and provides a refrigerator hinge which comprises a first connecting piece connected with a refrigerator door plate, a second connecting piece connected with a refrigerator cabinet body and a third connecting piece connected with a refrigerator door outer decoration plate, and a transmission mechanism is arranged among the first connecting piece, the second connecting piece and the third connecting piece. The refrigerator door outer decoration plate and the refrigerator door plate are arranged in a stacked mode, the first connecting piece drives the refrigerator door plate to be opened and closed on the refrigerator cabinet body through the transmission mechanism, and the third connecting piece drives the refrigerator door outer decoration plate to slide on the refrigerator door plate through the transmission mechanism in the opening and closing process of the refrigerator door plate. The first connecting piece is provided with a reversing transmission assembly connected with the refrigerator door outer decoration plate in a matched mode, the refrigerator door outer decoration plate slides on the door plate when the refrigerator door plate is opened and closed, in this way, the refrigerator door outer decoration plate does not interfere with a refrigerator cabinet body when the refrigerator door plate is opened, and the matching gap between the refrigerator door plate and the refrigerator cabinet body does not need to be too large; in addition, the requirement for machining precision of the box door outer decoration plate can be lowered.

The utility model provides a lightweight warm-keeping indoor wooden door, which relates to the technical field of wooden doors and comprises a wooden door main body, a door handle is mounted on the surface of one side of the wooden door main body, a mounting groove is formed in the wooden door main body, and a cover plate is mounted at the top of the wooden door main body and located at the top of the mounting groove. A heat preservation foam plate is mounted in the mounting groove, and connecting mechanisms used for mounting are arranged at the two ends of the heat preservation foam plate. The interior of the wooden door body is hollow, the thermal insulation foam board is installed, the overall weight of the wooden door can be reduced, installation operation is more convenient, the wooden door can have the better thermal insulation effect, the rubber sealing strips are movably installed through the sliding blocks and the connecting springs, and the sealing effect is good. The bottom of the rubber sealing strip can be always in contact with the ground by utilizing the elastic effect of the spring and the material characteristics of rubber, so that a gap at the bottom of the wooden door main body is smaller, and a better heat preservation effect can be achieved when the wooden door is closed.

A sliding closet door assembly comprises a first door panel (22a); a door frame assembly comprising at least a first side edge strip arrangement, a second side edge strip arrangement, a top edge strip arrangement, and a bottom edge strip arrangement configured to define a door frame (20) extending in a door frame plane, the door frame (20) being adapted to receive and hold said first door panel (22a); and a rider arrangement configured to ride in a door guide rail, wherein the door frame (20) is configured to receive said first door panel (22a) in a door panel insertion direction (T) transversal to the door frame plane. At least one of the strip arrangements comprises an attachment arrangement configured to attach said first door panel (22a) to the door frame (20).

An apparatus for an entryway includes: a sheet of material having a top, a bottom, a left side, and a right side, and a sleeve at the top of the sheet of material. The sheet of material has an opening extending to the bottom of the sheet of material between the left side and the right side of the sheet of material from a position below the sleeve. The opening has a left seam and a right seam, wherein a first magnet is positioned at the left seam of the opening and a second magnet is positioned at the right seam of the opening, wherein the first and second magnets are magnetically coupled. A variable-length cross member has a first end and a second end. The cross member is positioned in the sleeve and includes a first securing mechanism at the first end and a second securing mechanism at the second end that secure the cross member respectively to body portions of a first vertical pole and a second vertical pole.

A main tilting door for the closure of an access opening of a room includes two fixed uprights, including vertical sliding guides, and one fixed crosspiece associable with each other to define a fixed frame. The door includes two movable uprights and two movable crosspieces associable with each other to define a movable frame. The door includes tilting movement device / unit / component / apparatus or the like including two lateral supporting arms each having a first end which can be hinged to an intermediate area of the movable uprights and a second end which can be hinged to a top of the fixed uprights; and two sliding supports movable along the vertical sliding guides. The door includes panels associable with the movable frame. At least one of the movable uprights and the movable crosspieces includes a sliding track and cursors movable along the sliding track, the panels associable with the cursors.

The utility model relates to a vacuum plate structure, which is applied to the technical field of vacuum plates and comprises an aluminum plastic film, a core material and a getter, the aluminum-plastic film is provided with two layers, namely an upper aluminum-plastic film layer and a lower aluminum-plastic film layer, and the upper aluminum-plastic film layer and the lower aluminum-plastic film layer are annularly sealed; the core material is filled between the upper aluminum-plastic film layer and the lower aluminum-plastic film layer, the getter is arranged between the upper aluminum-plastic film layer and the lower aluminum-plastic film layer, and the space between the upper aluminum-plastic film layer and the lower aluminum-plastic film layer is vacuumized; the aluminum-plastic film comprises a nylon protective layer, a first aluminum foil layer and a polyethylene PE layer which are sequentially stacked, and the polyethylene PE layer in the upper aluminum-plastic film layer and the lower aluminum-plastic film layer is arranged on the side close to the core material. The space between the upper aluminum plastic film layer and the lower aluminum plastic film layer is filled with the core material and the getter, and vacuumizing treatment is carried out, so that the sound insulation characteristic of the vacuum plate is improved; and the first aluminum foil layer in the aluminum-plastic film can improve the sound insulation index of high-frequency sound in the vacuum plate, reduce the air leakage rate and improve the durability of the vacuum plate.

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.

The utility model provides a door plate. The door plate comprises a panel, a cover plate, a filling layer and a supporting layer. The cover plate is provided with a mounting cavity. And the panel is fixedly connected with the cover plate and covers the opening of the mounting cavity. And the filling layer is arranged in the mounting cavity. The supporting layer is arranged in the mounting cavity and at least located between the panel and the filling layer. The supporting layer adopts a metal plate. Compared with a wooden door plate in the related technology. The filling layer and the supporting layer made of the metal material are arranged between the panel and the cover plate, so that the overall strength of the door plate is improved by exerting the high strength of the metal plate. The supporting layer is made of a metal plate, is firm in structure and high in bending resistance and pressure resistance, provides strong support for the panel, enhances the strength of the panel, and can effectively resist deformation caused by long-time use and external force impact.

The utility model relates to the technical field of kitchen household appliances, and provides a door body structure and a disinfection cabinet comprising the same. The door body structure comprises a door body provided with an interlayer cavity, a control panel assembly and a water accumulation assembly. The control panel assembly is arranged in the interlayer cavity and comprises a control panel body and a support, the support is arranged on the door body and provided with an assembling space in a surrounding mode, at least part of the control panel body is contained in the assembling space and connected to the support, and at least the upper position of the support is provided with a flow guide channel arranged on the peripheral side of the control panel body in a surrounding mode. The water collecting assembly at least comprises a water collecting cavity, and the water collecting cavity is arranged below the control panel assembly and communicates with the flow guide channel. According to the door body structure, the protection effect and the waterproof effect on the control panel are effectively improved.

The utility model relates to the technical field of protective doors, and one embodiment of the utility model provides a hot smoke box protective door structure which comprises a door plate and further comprises a heat preservation plate, a mounting cover, a fixing mechanism, a fixing seat, a fixing opening, a positioning seat, a positioning mechanism and a moving mechanism, the heat preservation plate is arranged on one side of the door plate, and a mounting groove is formed in the heat preservation plate; the mounting cover is arranged in the mounting groove in a sliding mode, positioning grooves are formed in the two opposite side walls of the mounting cover, the fixing mechanism is arranged between the mounting cover and the side walls of the mounting groove and is used for fixing the mounting cover and the side walls of the mounting groove, and the fixing base is fixedly arranged on the door plate and can extend into the mounting cover in a sliding mode. A fixing opening is formed between the two opposite side walls of the fixing seat, the positioning seat is arranged in the fixing opening in a sliding mode, the positioning mechanism is arranged on the positioning seat, and through the technical scheme, the technical problem that in the prior art, the installation stability between the protective door and the heat preservation plate is low is solved.

The utility model discloses a novel self-locking safety sliding door, and relates to the technical field of production line safety sliding doors. The sliding door comprises an upper rail, a lower rail, a sliding door body, a self-locking mechanism and a reinforcing edge, rollers are arranged at the top and the bottom of the sliding door body, the sliding door body is slidably arranged between the upper rail and the lower rail through the rollers, an arc-shaped opening is formed in the center of the top edge of the sliding door body, the reinforcing edge is fixed to the arc-shaped opening of the top edge of the sliding door body, and the cross section of the reinforcing edge is of an inverted-U-shaped structure. The reinforcing edge is a thin plate mechanism. According to the sliding door, the arc-shaped opening is formed in the sliding door body, the self-locking mechanism is arranged at the position of the arc-shaped opening, self-locking of the sliding door body can be achieved through pressure provided by the spring, and the problem that the sliding door body cannot be kept in a closed state after sliding door rollers are abraded is solved; the safety problems of frequent alarm and equipment shutdown due to the fact that the sliding door is separated from the detection range of the proximity switch are avoided, normal use of the sliding door is guaranteed, and personnel safety and production line safety are guaranteed.

The utility model discloses a guide ventilation cut-off waveguide window for a dangling type explosion-proof wave shielding valve, which belongs to the technical direction of waveguide windows and comprises an inclined ventilation cut-off waveguide window, a static pressure absorption cabin, a horizontal ventilation cut-off waveguide window, a door leaf outer door plate and a door leaf inner door plate. The oblique ventilation cut-off waveguide window is welded to one end of the outer door plate of the door leaf, the oblique ventilation cut-off waveguide window, the static pressure absorption cabin and the horizontal ventilation cut-off waveguide window are used in cooperation, a double-layer combined ventilation waveguide structure is adopted, and a wave absorption material is attached to the static pressure absorption cabin, so that electromagnetic waves are reflected and absorbed for multiple times in the static pressure absorption cabin; electromagnetic wave energy entering the shielding body is greatly weakened, the overall shielding effectiveness is improved, meanwhile, the static pressure absorption cabin can evenly distribute air volume, stabilize airflow, reduce airflow vibration and noise, convert part of dynamic pressure into static pressure, reduce dynamic pressure loss, improve the efficiency of a ventilation system, enable air to be blown farther, and effectively reduce the length of the hexagonal waveguide 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.

The utility model relates to the technical field of wooden doors, and discloses a wooden door internally filled with log mechanical plates, which comprises a main body assembly, the main body assembly comprises a wooden door body, and handles are symmetrically arranged on the wooden door body; the two log mechanical plate bodies are inserted into the wooden door body and are symmetrically arranged; disassembling assemblies are symmetrically arranged on the wooden door body, and each disassembling assembly comprises a groove formed in the outer side wall of the wooden door body; the sliding groove is formed in the wooden door body; the log mechanics plate has the advantage that internal filling can be independently replaced, when the log mechanics plate body needs to be disassembled, an operator pulls the limiting groove in the groove body, the pulling plate pulls the limiting block to move in the sliding groove, and therefore the pulling plate is moved out of the limiting groove in the log mechanics plate body, limiting and fixing of the log mechanics plate body are omitted, and the log mechanics plate is convenient to disassemble. And then an operator can take out and replace the log mechanical plate body, and the problem that the whole wooden door needs to be replaced when internal filling is damaged is solved.

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.

The utility model relates to the technical field of adjusting support, concretely to a high airtightness civil air defence door device. The utility model discloses door frame and door leaf, the inside of door leaf is equipped with adjusting device, the adjusting device includes flange bearing and two racks, the circular arc surface of flange bearing is fixedly connected with door leaf, the inboard fixedly connected with the shaft of flange bearing, one end fixedly connected with the gear of the shaft, the outside of gear is engaged with two racks, one end fixedly connected with the connecting plate of rack, one end fixedly connected with the moving plate of connecting plate, one side of two moving plates is connected with door leaf slidingly. The traditional high airtightness civil air defence door device basically adopts single point locking structure, when single point locking, impact force (such as explosion shock wave) concentrates on single locking point, causes door leaf to bear non-uniform load, and the problem that partial door leaf is easily caused to be recessed or locking point welding place fatigue fracture.

The utility model discloses a counter-pulling anchoring flood gate adopting a rear anchoring mode, which comprises a door frame structure, a door leaf, a locking structure, a hinge and an anchoring device, the door frame structure is arranged in a door opening of a wall body through the anchoring device, the door leaf is connected to the wall body through the hinge, and the locking structure is arranged on the door leaf; the door frame structure comprises a door frame and a doorsill, the anchoring devices comprise the first anchoring device and the second anchoring device, the door frame is arranged in a door opening of a wall through the first anchoring device, the doorsill is arranged on the ground through the second anchoring device, and the hinge is arranged on the wall through the first anchoring device. The door frame is fixed in the wall body through the anchoring device, the structural complexity of the door frame is greatly reduced, the adopted opposite-pulling anchoring mode has the advantages of being simple in structure, high in anchoring strength and convenient to install, and the protection performance of the moisture-proof door can be effectively improved.