1288 results about "Back door" patented technology

An expandable lavatory for full-size wheelchairs may comprise an aircraft lavatory door system with a forward door and an aft door wherein both doors are capable of expanding into an expanded locked position. The expandable lavatory for full-size wheelchairs may comprise a first single lavatory, a second single lavatory, a collapsible divider, and a lavatory door system which functions to provide a door to each single lavatory and a door for a configuration in which the two single lavatories convert into one expanded double lavatory. The expandable lavatory for full-size wheelchairs may be a forward lavatory facing the aisle in proximity to a first galley, a second galley, and a wheelchair tie down space.

The invention discloses a method and system for cooperatively opening a door by a front door lock and a rear door lock, and the method comprises the following steps: front door linkage trigger processing: carrying out entrance record generation processing according to a complete behavior sequence detected by the front door lock to obtain a linkage trigger signal; back door safety decision processing: performing back door state detection and personnel identity multi-level verification processing according to a door opening request message received by a back door lock to obtain an unlocking decision result; reverse guide control processing: according to the doorbell event which is not responded by the front door lock, cross-door lock audio and video channel establishment processing is carried out, and a reverse unlocking instruction is obtained; schedule comparison guide processing: comparing visitor visiting schedule information when the front door lock rings, automatically unlocking and carrying out space guide; and dynamic addressing co-processing: according to the position information of the mobile terminal intercepted by the door lock in the multicast network, carrying out target rear door lock positioning processing to obtain a directional notification strategy. By utilizing the embodiment of the invention, the collaborative response efficiency and the user experience of the intelligent door lock can be improved.

The invention provides a semiconductor grade silicon dioxide vacuum sintering furnace which comprises a furnace body, a heating cavity is formed in the middle of the furnace body, and a rear door body is arranged at the first end of the furnace body; the material dragging trolley is arranged in the furnace body in a sliding mode, and a workpiece is placed on the material dragging trolley; the front door body is arranged on one side of the material dragging trolley, and when the material dragging trolley slides into the heating cavity, the front door body seals the second end of the furnace body; the device has the beneficial effects that through the arrangement of the pressing and rotating assembly, a workpiece on the material dragging trolley can be fixed from the two ends, it is ensured that the workpiece is always kept stable in the heating process, and the workpiece can be driven to rotate by the pressing and rotating assembly. In the heating process, the workpieces can be heated more uniformly through rotation of the workpieces, the heating effect and the product quality are improved, the workpieces can be automatically assembled and disassembled through arrangement of the material dragging trolley, the labor intensity of workers is reduced, and the working efficiency is improved.

The utility model discloses a double-air-duct industrial and commercial air-cooled energy storage cabinet, which comprises an energy storage cabinet body, the rear side of the energy storage cabinet body is connected with a rear door assembly through a hinge, the inner walls of the two sides of the energy storage cabinet body are connected with symmetrically distributed plug box supporting beams, battery plug boxes are inserted between the upper and lower adjacent plug box supporting beams, and the upper and lower adjacent plug box supporting beams are connected with the battery plug boxes. According to the utility model, external air enters the cold air duct through the condensation air inlet and the evaporation air supply outlet, and cold air is sequentially fed into the battery plug-in box and the bottom of the energy storage cabinet body to cool the battery plug-in box and the high-voltage box; and meanwhile, hot air is discharged from the other side of the battery plug-in box, rises, enters the hot air duct under the suction force of the evaporation return air inlet and is discharged from the condensation air outlet through the hot air duct and the evaporation return air inlet, so that internal air is circulated, and the heat dissipation efficiency is improved.

The invention relates to the technical field of converters, in particular to an outdoor converter cabinet which comprises a cabinet body, a first air inlet assembly and a second air inlet assembly are arranged on a front door of the cabinet body, and a first air outlet assembly and a second air outlet assembly are arranged on a rear door of the cabinet body. A first heat dissipation air duct assembly, a second heat dissipation air duct assembly and a third heat dissipation air duct assembly which are isolated from one another are arranged in the cabinet body; the outlet end of the first heat dissipation air duct assembly is connected with the first air outlet assembly, and the outlet end of the second heat dissipation air duct assembly and the outlet end of the third heat dissipation air duct assembly are both connected with the second air outlet assembly. The first heat dissipation air duct assembly is used for dissipating heat of the reactor, the second heat dissipation air duct assembly is used for dissipating heat of the power module, and the third heat dissipation air duct assembly is used for dissipating heat of the heating component group. Through three-air-duct isolation, front-back opposite air inlet and outlet and sealing butt joint, heat source partition heat dissipation is achieved, heat intermingling is avoided, and dust and water are prevented.

The waterproof and dustproof automobile back door storage box comprises a box body, a box cover and a hinge, an inner cavity of the box body is a storage space, an opening communicated with the storage space is formed in the surface of the box body, one end of the hinge is connected with the box body, and the other end of the hinge is connected with the box cover. The box cover rotates by taking the hinge as a rotation center to open or close the storage space, the box further comprises a rubber strip, the rubber strip is arranged on the box cover and located on the periphery of the corresponding storage space, and when the box cover rotates to close the storage space, the rubber strip seals a connecting gap between the box cover and the box body. According to the design, the adhesive tape is arranged on the box cover and arranged in the peripheral area of the corresponding storage space, and effective sealing of the connecting gap between the box cover and the box body is achieved. When the box cover rotates to seal the storage space, the rubber strip can be tightly attached to the edge of the box body, a good sealing effect is formed, and therefore external moisture and dust are effectively prevented from entering.

Side structure (1) for a motor vehicle (3) including an inner and outer frame (11, 13) each forming a closed ring and having two openings corresponding to the front and rear doors (8, 10), wherein the inner and outer frames (11, 13) are each formed by hot stamping respectively an inner and an outer frame blank (111, 113), each being a single tailor welded blank made of steel and wherein the inner and outer frames (11,13) are assembled to form a hollow volume (7) between them.

The utility model discloses a novel car body side back door hinge installation reinforcing structure, and belongs to the technical field of car body structures. The hinge mainly comprises a hinge reinforcing plate, an upper hinge nut plate, a lower hinge nut plate and an installation pipe beam assembly, the installation pipe assembly is fixed to one side of the hinge reinforcing plate, and the upper hinge nut plate is installed at one end of the installation pipe beam assembly; the lower hinge nut plate is mounted at the other end of the tubular beam assembly; wherein a first through hole is formed in the hinge reinforcing plate; a second through hole is formed in one side of the installation tubular beam assembly, a third through hole is formed in the other side of the installation tubular beam assembly, and the second through hole, the third through hole and the first through hole are located on the same straight line. By optimizing the connecting structure of the back door upper hinge nut plate, the back door lower hinge nut plate and the back door hinge reinforcing plate, a vehicle body side mounting structure is reinforced, the vehicle body side hinge mounting strength is enhanced, the reliability and durability of a vehicle are improved, and the stability of the back door is improved. The rear door plate structure is mainly used for optimizing the rear door plate structure of the vehicle body.

The modular trailer comprises a front frame A, a front end fence, a left side fence, a right side fence, a tail cross beam, a rear door structure and a bottom supporting beam. The left side fence and the right side fence are rectangular frame beams, the front ends of the left side fence and the right side fence are connected with the front end fence, the bottoms of the rear ends of the left side fence and the right side fence are connected with the tail cross beam, the middle parts of the left side fence and the right side fence are connected through a bottom supporting beam, and the rear door structure is arranged on the tail cross beam; the middle of the front frame A is connected with the lower end of the front-end fence, and the rear portion of the front frame A is connected with the bottoms of the left-side fence and the right-side fence.

The present application relates to the technical field of vehicle body, in particular to a back door frame structure, a vehicle body and a vehicle. The back door frame structure comprises a rear upright column upper side beam assembly, a rear upright column assembly and a rear apron welding assembly, the rear upright column assembly is connected to the two sides of the rear apron welding assembly respectively, the rear upright column upper side beam assembly is connected to the two rear upright column assemblies respectively, the rear upright column upper side beam assembly, the rear upright column assembly and the rear apron welding assembly constitute a semi-closed annular cavity, a reinforcing structure is arranged in the annular cavity, and the reinforcing structure is arranged at the rear upright column assembly and the rear apron welding assembly. The purpose is that when the tail box adopts a lower flip type back door or the top of the tail box is designed as openable glass, the rigidity and strength of the back door frame can be effectively enhanced, so that the rigidity, strength and NVH performance of the whole vehicle are improved, and the mounting point rigidity of the back door is met.

A package theft prevention system comprising a mailbox defining an irregularly shaped interior compartment for storage of received packages. The lower portion of the mailbox has an outward, distally tapering wall for anchoring to concrete it is embedded in. The uppermost opening to the mailbox has a package door biased in the closed condition, where, just downward of the package door is a self-closing trap door biased in its closed position. As the package door and the trap door are offset and open in opposing directions, removal of packages from the upper opening is frustrated while receipt by the deliverer is facilitated. A lockable rear door below the upper opening provides access to the interior compartment for the owner.

The invention relates to a control method and device for a back door of a vehicle, the vehicle and electronic equipment, and relates to the technical field of vehicles, in particular to the technical field of vehicle control, and the method comprises the steps that it is detected that preconditions for controlling the back door are met, and a knocking detection mode is entered; in the knock detection mode, fusion detection is carried out according to the collected image and a sound signal collected through a microphone, and a knock detection result is obtained; and under the condition that the knocking detection result is that the knocking action is detected, the back door is controlled to be opened or closed. More accurate and safer back door operation control is realized, the false triggering probability is effectively reduced, and the safety performance and the use experience of a user are improved.

A storefront pickup system for installation into a storefront of a building. The storefront pickup system provides a thermal break between an exterior and an interior of the building, allowing ordered items such as food and beverages to travel through the storefront. The storefront pickup system includes a storage compartment having a rear door assembly providing access to the storage compartment from an interior of the building, and a front door assembly providing access to the storage compartment from an exterior of the building.

1. Name of the designed product: automobile rear door handrail. 2. Use of the designed product: closing the automobile door in the car. 3. Design points of the designed product: shape. 4. Picture or photo best indicating the design points: perspective view.

A hydraulic control device of a vacuum sweeper is characterized in that a fan servo pump is communicated with a fan motor, a front gear pump is communicated with a box body left and right lifting oil cylinder and a box body self-falling hydraulic control valve through a large-flow hydraulic control valve and a box body pressure maintaining one-way valve, and is communicated with a rolling brush left motor and a rolling brush right motor; the rear gear pump is communicated with a left and right side brush lifting hydraulic control valve, a rear door opening and closing hydraulic control valve, a right side brush motor hydraulic control valve, a main hydraulic control valve and a suction cup lifting hydraulic control valve; the left side brush lifting hydraulic control valve is communicated with a left side brush lifting oil cylinder; the rear door opening and closing hydraulic control valve is communicated with the rear door left and right opening and closing oil cylinders; a right brush motor hydraulic control valve is communicated with a right brush motor and a left brush one-way valve, the right brush motor is communicated with the left brush one-way valve and a left brush hydraulic control valve through the right brush one-way valve, and the left brush hydraulic control valve is communicated with a left brush motor. The right side brush lifting hydraulic control valve is communicated with a right side brush lifting oil cylinder; the sucker lifting hydraulic control valve is communicated with the sucker left lifting oil cylinder and the sucker right lifting oil cylinder.

1. The name of the design product: car speaker cover. 2. The use of the design product: the design product is used for car speaker cover. Kit 1 is mainly used for A column speaker cover, kit 2 is mainly used for C column speaker cover, kit 3-4 is mainly used for car roof speaker cover, kit 5-6 is mainly used for car back door panel speaker cover, kit 7-8 is mainly used for car front door panel speaker cover, kit 9 is mainly used for car trunk speaker cover, and kit 10 is mainly used for car central control speaker cover. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: kit 1 perspective view 1.

According to the garbage can and the cleaning and sweeping vehicle, a movable upper rear door and a movable lower rear door are arranged on a can body, the upper rear door and the lower rear door are independently controlled to open or close discharging openings of an upper-layer garbage cavity and a lower-layer garbage cavity, meanwhile, after the upper-layer garbage cavity and the lower-layer garbage cavity are closed, the upper rear door can be tightly closed through an upper locking mechanism, and therefore the upper-layer garbage cavity and the lower-layer garbage cavity can be locked. And the lower locking mechanism can tightly close the lower rear door, so that the upper-layer garbage cavity and the lower-layer garbage cavity can be effectively and tightly closed and sealed, and the phenomenon that garbage in the upper-layer garbage cavity flows into the lower-layer garbage cavity is avoided.

The invention relates to the technical field of semitrailer transportation, in particular to a mould-proof ventilation structure for a van type transportation semitrailer, which comprises a carriage frame body, an electric door is arranged on the left side of the front end of the carriage frame body, a fixed door is arranged on the right side of the front end of the carriage frame body, and a back door is arranged on the right side of the carriage frame body. A first plate is slidably connected to the top of the inner wall of the carriage frame and is driven by an air cylinder, the front end of the first plate penetrates through the front end of the carriage frame and is fixedly connected with a movable door, and a partition plate is fixedly connected to the bottom of the first plate; the compartment mechanism can achieve zoning of the inner space, the ventilation mechanism forms a ventilation area, meanwhile, goods loading and unloading are facilitated through the structure, automatic opening and closing are achieved through an air cylinder, a first ventilation fan and a second ventilation fan operate at the same time for ventilation, adjustment is achieved through an adjusting partition plate, and the first ventilation fan and the second ventilation fan are driven by driving wind power. And when the rotating force of the rotating fan is increased, the ventilation effect is better.

The utility model relates to the field of garbage disposal, in particular to a garbage throwing device for an underground garbage station, which comprises a garbage can, a fixing frame is fixed at the front end of the garbage can, a hook is fixed on the fixing frame, a front door is arranged on the lower side of the fixing frame, support rods are arranged on two sides of the fixing frame, and a turnover mechanism is arranged on the front side of the garbage can. The garbage can further comprises a sealing mechanism used for sealing the rear side of the garbage can. The rear door is driven to move upwards through the lifting hydraulic cylinder, the supporting pin of the rear door moves in the guide notch of the rear door support, so that the two locking pins on the rear door are separated from the two locking buckles for locking, then the rear door is lifted through the simple and practical lifting hydraulic cylinder in a plug-in opening and closing mode, and under the condition that a hydraulic system breaks down, the rear door can be opened and closed in a plug-in mode. The rear door can still be closed in a sealed mode through the dead weight, and liquid sewage in the rear door is prevented from leaking.

1. Name of the designed product: back door of car. 2. Use of the designed product: back door of car. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The utility model provides a supporting structure of a vehicle back door and a vehicle. The supporting structure of the vehicle back door comprises a fixing piece, a first supporting assembly and a second supporting assembly, the first supporting assembly is used for being arranged on a back door of a vehicle, and the second supporting assembly is used for being arranged on a vehicle body of the vehicle. At least one of the first supporting assembly and the second supporting assembly is provided with a guiding driving inclined face obliquely extending in the first direction, the first supporting assembly and the second supporting assembly can abut against each other through the guiding driving inclined face when the back door is closed, and one of the first supporting assembly and the second supporting assembly can be movably adjusted in the first direction. The one movable in the first direction is adjusted to be located at a preset position when the back door is closed; the fixing part is used for fixing one of the first supporting assembly and the second supporting assembly which can be movably adjusted in the first direction to the preset position, and therefore the back door meets the use requirement of a user.

The invention discloses a five-prevention program mechanical locking device of an electric appliance cabinet and a gas insulated switchgear thereof. The device comprises an interlocking support; the switching-on locking plate is movably arranged on the interlocking support, and the switching-on locking plate locks a switching-on switch of the circuit breaker at the first position; the closing locking plate unlocks the closing switch at the second position; a closing switch of the circuit breaker in the opening state is located on a path of the closing locking plate moving from the second position to the first position; the opening locking plate is linked with the closing locking plate; the switching-on locking plate locks the switching-off electromagnet when the switching-on locking plate is at the first position, and unlocks the switching-off electromagnet when the switching-on locking plate is at the second position; the two-lock one-key program lock comprises a first program lock for locking the rear door and a second program lock for driving the closing locking plate to move; when the second program lock is locked, the closing locking plate is located at a first position; and when the program lock is unlocked, the closing locking plate is located at the second position. The problem that long-distance mechanical transmission accuracy is poor is solved.

The application discloses a highly integrated electric back door system and relates to the technical field of automobiles.The system comprises a PLG ECU, which is integrated in an electric balance bar assembly.The PLG ECU integrates all functions of a back door controller, including back door opening, closing, back door lock unlocking, locking and attraction, obstacle detection during operation and alarm signal prompting.The highly integrated electric back door system provided by the application not only greatly reduces the space and cost required for wire harness arrangement and independent controller installation, but also enhances the modular degree of the system, has good cross-model platform transplantation capability, provides an efficient and reliable solution for the development of new energy vehicles and intelligent vehicle body systems, and has remarkable technical advancement and broad market application prospect.

The utility model relates to a network cabinet with transparent door, including the cabinet body of front and back opening, set up the front door panel of cabinet body front side, set up the back door panel of cabinet body back side, set up a plurality of fans of cabinet body top and set up a plurality of universal wheel of cabinet body bottom, the inside frame of cabinet body is provided with, the front door panel includes the air panel and transparent board, the number of air panel is two, sets up in the both sides of transparent board respectively, is provided with the air window on the back door panel. The utility model discloses two door panels are set up on the cabinet body, and they are front door panel and back door panel respectively, the front door panel has transparent board, and when the front door panel is closed, the staff can observe the inside of the cabinet from the front side, so that the staff can observe the inside condition of the cabinet at any time, and the back door panel on the back side of the cabinet can also be opened, which is convenient for maintaining the internal components of the cabinet, and the front and rear components can be directly maintained. The top fan cooperates with the air panel on the front side and the air window on the back side to quickly discharge the heat in the cabinet.

This invention proposes an energy-saving waste lithium battery pyrolysis recycling furnace and method, relating to the field of lithium battery pyrolysis recycling technology. It includes a support base and a recycling furnace body connected above the support base. The furnace body includes a heating furnace tube, a feeding assembly movably disposed inside the heating furnace tube, and front and rear door assemblies respectively disposed at both ends of the furnace body. Multiple heat-insulating components are rotatably disposed on the outer side of the heating furnace tube, and a heating assembly is disposed near the rear end of the heating furnace tube. The heating assembly is connected to a feeding structure, which is connected to the multiple heat-insulating components, which are connected to the heating furnace tube. The energy-saving waste lithium battery pyrolysis recycling furnace and method provided by this invention avoids the problems of high energy consumption, material sticking to the walls, and inconvenient installation and disassembly of existing waste battery pyrolysis recycling equipment. The overall operation of the device is convenient and feasible, and it has excellent application effects.

The utility model relates to a kind of data center intelligent power supply precision column head control cabinet, wherein control cabinet left, right two sides are respectively equipped with two fully-enclosed side doors to be as control cabinet left, right side wall, control cabinet front, rear two sides are equipped with mesh front door and mesh rear door to be as control cabinet front, rear side wall to form the heat dissipation air duct of front-back direction;Control cabinet is equipped with electrical component module, and electrical component module front is aligned with mesh front door face to face.The external air in the utility model flows to the front of electrical component module by mesh front door, and the heat of the front of electrical component module is carried out by mesh rear door.Because external air flow direction is directly opposite the front of electrical component module, and its contact area is large, so heat dissipation effect is good.Maintenance personnel open mesh front door and face to face the front of electrical component module, so maintenance is convenient.