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15results about "Passage-through doors" patented technology

Frostless display freezer

The utility model belongs to freezer technical field especially is a kind of frostless display freezer, including cabinet, and the front side hinged connection of cabinet is connected with switch door.The utility model is placed on the baffle in cabinet by the object in cabinet under the condition that switch door is closed, it is convenient to show the article in cabinet to outside, when taking article, hold U-shaped handle and press push rod, push rod is moved by corresponding connecting rod with the driving connecting plate, connecting plate is stretched to corresponding second spring in the process of moving, connecting plate is moved by hinged link with the driving square bar, square bar is moved with the driving corresponding limit ring, limit ring is stretched to corresponding first spring in the process of moving, so that square bar is separated from corresponding square groove, U-shaped handle is pulled at this time, U-shaped handle is moved with the driving corresponding drawer, drawer is slid on guide rod with the driving corresponding slider, so that rectangular hole is not shielded, take out the article on baffle, avoid the energy waste caused by switch door wide open.
Owner:DONGGUAN GUANXUE REFRIGERATION EQUIPMENT CO LTD

Pet door assembly and flap

A pet door is provided that includes a flap, a core frame that is configured to hold the flap, an interior frame that is configured to be positioned in an interior portion of a structure, and an exterior frame that is configured to be positioned outside of a structure. The core frame may be a standard component. The flap may include two or more rigid segments extending from a top of the flap to a bottom of the flap. Gaps may be provided between the two or more rigid segments, and elastic material may be provided that connects adjacent rigid segments. Elastic stretch zones may be provided in the gaps, and the flap may resist horizontal and vertical bending in locations where a rigid segment is provided. The elastic stretch zones may be configured to permit vertical bending when the flap is opened.
Owner:DAVLANTES GEORGE N

Methods and apparatus for pet doors

A pet access control system according to various aspects of the present technology may comprise a door unit interoperable with a security panel holder. The door unit covers a passage through a structure, such as through the wall or door of a building. The door unit may include a connector that may be mounted on a legacy security panel holder or a dedicated mounting system for the door unit. The door unit may operate in conjunction with a pet identification system to automatically identify and grant access only to authorized pets.
Owner:SMARTEC PRODUCTS LLC

Pet door

PendingJP2026094726AServing doorsTaming and training devices
We provide pet doors that reduce stress on pets. [Solution] The pet door includes a hinged door that opens and closes around a pivot axis, with a distance between the hinge end of the hinged door and the pivot axis. The hinged door includes a first part between the hinge end and the pivot axis, and a second part between the opening / closing end and the pivot axis. The first part includes a weight provided in the body of the hinged door, the density of which is greater than the density of the second part.
Owner:荒山 義彦

A security door

ActiveCN224300730UAddress privacy breachesImprove anti-theft security performanceBurglary protectionServing doorsArchitectural engineeringStructural engineering
The utility model discloses a safe burglary -resisting door relates to the technical field of burglary -resisting door, the utility model discloses a burglary -resisting door body and the through groove : burglary -resisting door body is provided with the drawer groove corresponding with the through groove position, including: first slide rail, set up on the burglary -resisting door body, the number is two. The utility model discloses through the unique X type connecting mechanism and the coordination of many slide rail systems, forms stable load -bearing platform and line of sight shelter barrier when unfolding, effectively solved the privacy disclosure problem of traditional delivery mode, adopt the innovative embedded folding structure, through the accurate first slide rail, second slide rail and third slide rail system, make first board can be completely flush with burglary -resisting door body when closing, completely solved the problem of traditional external hanging type delivery device protruding door body, influence the beautiful problem, through the cooperation of T type guide slot and gyro wheel sliding block has guaranteed the smooth of sliding process, and the reinforcing rib and bearing design of X type connecting mechanism have effectively enhanced the structural strength.
Owner:刘思伟

Fireproof rolling door with emergency falling mechanism

The application relates to a fireproof roller shutter door with an emergency falling mechanism and belongs to the field of roller shutter doors. The fireproof roller shutter door comprises a function bin arranged on a door frame, guide rails symmetrically arranged on two sides of the door frame, a roller drum rotationally connected in the function bin, and a roller shutter body with an inner end wound on the roller drum. The outer end of the roller shutter body is arranged on the corresponding guide rail in a sliding mode. A water outlet pipe is arranged on the function bin, a water outlet is arranged on the water outlet pipe, water discharged from the water outlet forms a water curtain in front of the door frame, a drain pipe is arranged on the ground and located directly below the water outlet, a smoke sensing control unit is arranged on the function bin, the smoke sensing control unit controls the roller drum to rotate and make the roller shutter body fall to the bottom, a dispersing opening is arranged on the roller shutter body, and a dispersing door is arranged on the roller shutter body and covers the dispersing opening. The water curtain forms a water curtain in front of the door frame to block smoke, thereby reducing the leakage of toxic smoke into the escape passage during personnel escape, and the smoke blocking effect is improved.
Owner:ZHEJIANG DINGGU SPECIAL DOORS & WINDOWS CO LTD

Segmented closure system

A segmented closure system for providing a closure strip of variable length capable of allowing the efficient opening and closing of an object to form a barrier such as a temporary door. The segmented closure system generally includes a pair of closure members each including a magnet for removably securing the closure members together. Each closure member includes a fastener for securing the each closure member to an object, such as to a pair of adjoining plastic sheets to form a temporary barrier such as a door. Each closure member may include mating connectors for linking the pair of closure members together end-to-end in a linear or angled orientation. Each closure member may include a pivotable segment connected to its main body by a connector pin. Temporary barriers of variable sizes may be easily constructed by interlinking multiple closure members together on opposite edges of a pair of plastic sheets.
Owner:RE U ZIP LLC

Pet door with locking mechanisms and method for controlling pet door

The present invention provides a pet door with locking mechanisms and a method for controlling the pet door, and belongs to the technical field of pet management. The pet door with the locking mechanisms includes: a door frame including an inner portion and an outer portion, wherein the door frame is provided with a locking hole; a door body including a rotating side and a limiting side; a first locking mechanism arranged on the door frame and located between the inner portion and the door body, wherein the first locking mechanism includes a locking base and a locking pin, and the locking pin is extendable out of or retractable into the locking hole; and a second locking mechanism arranged on the door frame and located between the outer portion and the door body, wherein the second locking mechanism has a structure the same as that of the first locking mechanism.
Owner:NINGBO ACE GREENIS SMART TECH CO LTD

Fireproof rolling door with emergency exit

This utility model relates to the field of fireproof roller shutter door technology and discloses a fireproof roller shutter door with an emergency exit, including a mounting frame and a top shell fixedly mounted on the top of the mounting frame, and a roller shutter body disposed inside the mounting frame. A cooling component is disposed at one end of the mounting frame near the top shell. An escape door is rotatably mounted on the inner side of the roller shutter body. A fixing block is fixedly mounted on the side of the escape door near the roller shutter body, and a limiting hole is formed on the outer wall of the fixing block. This fireproof roller shutter door with an emergency exit, through the design of soft magnets one and two, a limiting rod, and limiting holes one and two, facilitates the opening and closing of the escape door in the event of a fire, making it highly practical. The cooling component design facilitates the cooling of the roller shutter body and the escape door, preventing the roller shutter body and the escape door from overheating and causing injury to the escapee, while also effectively slowing the spread of fire, making it highly practical.
Owner:NANJING HUAXIN FIRE EQUIP MFG CO LTD

A front door for easy collection of items

The application discloses a kind of entry door of convenient collection article, it is related to entry door technical field, including metal door, the surface of metal door is provided with peephole, door lock mechanism, the surface of metal door is provided with mail collection structure, the mail collection structure includes mounting bracket, mail collection box, movable plate, mail drop mouth, opening and closing door, password mechanism, two installation plate one, two installation plate two, one central control mechanism, one rechargeable battery, one electric latch mechanism, one fixed rod, three fixed plates, the outside of movable plate is fixedly provided with limit board, two connecting pieces.The entry door of convenient collection article of the application, the combination method of using the function of password mechanism and metal door avoids the face-to-face contact between owner and expressman, and the combination method of password mechanism and mail collection box prevents the loss of articles, and multiple repeated delivery reduces the trouble of multiple pickups.
Owner:周晓东

Fireproof door for fire-fighting passage

This utility model discloses a fireproof door for fire escape routes that prevents jamming, belonging to the field of fire door technology. It includes a door frame and a door structure arranged inside the door frame for sealing or sliding open the fire escape route. The door structure includes a fire door and hinges arranged on one side of the fire door and door frame, and a movable frame slidably installed inside the fire door. In use, the door frame can be fixed at the fire escape route. Pushing the sealed door allows it to flip on the door frame via the hinges, thus opening the fire escape route. If the sealed door jams, the angle restriction on the movable baffle can be released by rotating the adjustment dial. Flipping the movable baffle then opens the movable frame, providing a passage for a single person to pass through, preventing complete door failure due to a malfunction of the single opening method, and facilitating rapid escape in emergencies.
Owner:JIANGSU JIUTAI FIRE FIGHTING EQUIP CO LTD

Door with built in collapsible safe box

A door having a collapsible safe box that can be deployed to receive an item or package and automatically transfer it to inside a room. The collapsible safe box may include protractible and retractable side member, bottom member, and lid. The collapsible safe box may include one or more electronic devices to monitor and operate the functioning of the safe box. In examples, the door may include an opening at a rear portion of the collapsible safe box and a door hatch for opening and closing the opening as the collapsible safe box is retracted and protracted.
Owner:ECO EARTH HLDG INC