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119 results about "Door threshold" patented technology

A threshold is the sill of a door. Some cultures attach special symbolism to a threshold. It is called a door saddle in British English and in New England.

Insulating structure of subway shielding door system and civil engineering structure

The invention relates to an insulating structure of a full-height subway shielding door system and a civil engineering structure, which comprises an upright post provided with an upper supporting insulting system and a lower supporting insulting system, wherein the lower supporting insulting system comprises a threshold connected with the lower end of the upright post as well as an upper support and a lower support arranged between the threshold and a civil engineering structure; the lower surface of the threshold is provided with two C-shaped groove-shaped slideways parallel to the rail, and slide blocks with a screw holes are arranged in the groove-shaped slideways; a baseplate of the upper support is connected with the slide blocks in the groove-shaped slideways through a lower insulting pad and a lower insulating sleeve by bolts; the upper supporting insulting system comprises an upper bracket connected with a top civil engineering structure and a connecting member connected with the upper bracket; and a retractable insulting connecting rod assembly is respectively hinged with the connecting member and the upper end of the upright post. The invention can ensure that the structure of the subway shielding door is thoroughly isolated and insulated with a civil engineering structure in structural design so as to ensure the personal safety of passengers.
Owner:FANGDA INTELLIGENT INNOVATION TECH CO LTD

Threshold-free hydraulic weather-tight hinged door for ship

The invention relates to a threshold-free hydraulic weather-tight hinged door for a ship. The threshold-free hydraulic weather-tight hinged door comprises a door frame, a door leaf, a lifting hinge device, a sealing rubber strip, an oil cylinder and the like. In order to meet the requirements of large equipment, cargoes, vehicles and in-out cabins on a ship, a hinged door frame is required to be threshold-free, and a conventional hydraulic weather-tight hinged door cannot meet the requirements. The door frame is of a threshold-free structure, and a door body sealing strip needs to meet the sealing requirement on a door frame sealing face and a bottom deck sealing face. The hinge is a lifting hinge. Before the door leaf is opened or closed, the door leaf is lifted to a certain height by the lifting oil cylinder through the lifting hinge, so that collision or friction caused by contact between a sealing strip at the bottom of the door leaf and a ship body deck (including a guide rail and other structures arranged on the ship body deck) in the opening and closing process is avoided; after the door leaf is opened, the hydraulic control one-way valve arranged on the door opening oil cylinder can fix the door leaf, and the door body is prevented from swinging due to shaking of the ship body. The hinge door can meet the weather tight requirement, and the flushing test pressure reaches 0.2 MPa.
Owner:WUXI DONGZHOU MARINE EQUIP CO LTD

Uniformly-locked sealed protection door with transition threshold

The invention discloses a uniformly-locked sealed protection door with a transition threshold comprising a door fan, a door frame and locking mechanisms. The door frame is set in walls; the door fan is connected with the walls through hinges and can be closed into the door frame through the locking mechanisms; the door frame is symmetrical, effectively enhancing the strength of the structure, andcan be adapted to install two door fans where needed; a transition door frame is set at the lower part of the door frame to make up for the defects of complex structure and poor protection effect of existing door frames; uniform locking structure is used to make the door fan under uniform force and, together with horizontally moving hinges, make the door fan and the door frame parallel, effectively enhancing the sealing and protection effects; the uniform locking structure and the horizontally moving hinges working together also effectively avoid the situation where the door fan rebounds underimpact and causes damages to the hinges so the door cannot open; and two sets of seals are arranged between the door fan and the door frame to enhance the sealing effect. The invention has the advantages of good sealing and protection effects, stable and reliable overall structure, convenient installation and good locking effect.
Owner:CHINA INST OF BUILDING STANDARD DESIGN & RES +1

Moveable-threshold fireproof protective airtight door of escape route of high-speed railway tunnel

The invention belongs to the technical field of civil defense doors and particularly relates to a moveable-threshold fireproof protective airtight door of an escape route of a high-speed railway tunnel. The moveable-threshold fireproof protective airtight door comprises a door frame, a door leaf, hinges, closing locks, a movable threshold and a sealing device. The door frame is installed on a tunnel wall. The door leaf is rotationally matched with the door frame through the hinges. The closing locks are installed on the door frame and are in sliding fit with the door frame. The movable threshold is installed at the bottom of the door frame and connected with the tunnel wall. When the door leaf is closed, the movable threshold abuts against the bottom of the door leaf. The sealing device isinstalled on the door frame and the door leaf. When the door leaf is closed, the door leaf is pressed to the movable threshold in an embedded manner. By arranging the movable threshold, the installation condition of the protective door is improved, a step is not needed when the protective door is installed, and the moveable-threshold fireproof protective airtight door has the feature of convenient construction. Meanwhile, the movable threshold can be detached, so that materials and personnel can conveniently pass, and therefore the moveable-threshold fireproof protective airtight door also the feature of high passage capacity.
Owner:GUANGZHOU METRO DESIGN & RES INST

Single-leaf push-pull type movable threshold protective air-tight door structure and closing method thereof

The invention discloses a single-leaf push-pull type movable threshold protective air-tight door structure and a closing method thereof. The single-leaf push-pull type movable threshold protective air-tight door structure comprises a wall body, a door frame, lock seat mechanisms, a guide rail and a door leaf. A door opening is formed in the wall body, the door frame comprises a door-shaped frame and a movable doorsill, the door-shaped frame is connected to the wall body and located on the two sides and the top of the door opening, the movable doorsill is detachably connected to the bottom of the door opening and hermetically connected with the door frame, and sealing strips are arranged on the periphery of the door frame; the lock seat mechanisms are arranged on the wall body or the door frame and located on the two sides of the door opening; the guide rail is connected to the wall body and extends to the top of the door opening; a hanging wheel is arranged on the door leaf, the hanging wheel is slidably connected to the guide rail, and locking mechanisms are arranged on the two sides of the door leaf; and when the door leaf slides to the door frame along the guide rail, the lock seat mechanisms are matched with the locking mechanism in a limiting mode, so that the door leaf translates towards the door frame to press the closing strips to seal the door opening. A hinge-free translation structure is adopted, a large door leaf opening space is not needed, and the single-leaf push-pull type movable threshold protective air-tight door structure is more suitable for a special building environment with a small door opening space at the hole.
Owner:CHINA INST OF BUILDING STANDARD DESIGN & RES

B-pillar lower end outer threshold angle plate structure

The utility model discloses a B column lower end outer doorsill angle plate structure, and aims to solve the technical problems of large column collision invasion amount and high invasion speed whichcannot be well solved by taking measures of increasing material thickness or adding parts at a B column lower end doorsill in the prior art. The structure comprises a B column assembly and a doorsillassembly; the doorsill assembly comprises an inner doorsill and an outer doorsill which are oppositely arranged, the B column assembly comprises a B column inner plate partially attached to the innerdoorsill, the side, away from the B column inner plate, of the outer doorsill is connected with a side wall outer plate, and a B column reinforcing plate is arranged between the side wall outer plateand the outer doorsill; the angle plate assembly comprises a first angle plate and a second angle plate which are arranged at intervals, an angle plate support is arranged between the first angle plate and the second angle plate, an inner threshold support is arranged on the side, close to the B-pillar inner plate, of the inner threshold, a seat beam body and a middle floor are arranged on the side, away from the B-pillar inner plate, of the inner threshold, and the middle floor comprises a middle floor body parallel to the seat beam body.
Owner:ZHEJIANG LEAPMOTOR TECH CO LTD
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