11results about How to "Stable opening and closing" patented technology

This utility model discloses a vacuum chamber cover lifting and opening device, including a support frame with a fixing hole at the bottom. A reducer is fixed on the support frame, and a handwheel is connected to the input end of the reducer. Output shafts are connected to the output ends on both sides of the reducer, and a winch is fixed on the output shaft. A wire rope for pulling the cover is fixed on the winch. This utility model reduces the workload of operators, reduces equipment maintenance costs, improves the overall operating efficiency and safety of vacuum equipment, meets the requirements for efficient cover operation in vacuum equipment, and has a safety protection structure to eliminate the risk of cover falling, ensure the safety of operators and equipment, reduce the bending deformation and damage to the cover caused by external forces, and avoid damage to the equipment that could lead to production delays.

The utility model discloses an automatic prickly pear slicer belongs to agricultural product processing equipment technical field. It includes frame, installation platform and the first chain that sets up around installation platform, and the first chain is evenly distributed and puts material seat, and puts material seat in proper order through the material station, and the head cutting slice station and the blanking station. The material groove is formed to the material seat through the "V" shaped clamping plate and the supporting plate, and the material groove opening and closing are controlled through the guide tip portion of first straight board and second straight board, realize automatic feeding and unloading. The head cutting slice station sets up the movable table of linear motion tracking module drive, is equipped with the head cutting mechanism and the slice knife on movable table, and the head is cut to the oblique insertion knife rotation through the lifting cylinder and the oblique insertion cylinder drive needle rod puncture, and the slice knife is driven to complete the slicing through the cutter cylinder. The utility model has solved the problem of the flesh waste, the slice uneven, the low efficiency and the high cost of traditional manual head cutting slice existence, has realized prickly pear processing's automation, high efficiency and slice homogenization, is applicable to the large -scale production.

The invention belongs to the technical field of semiconductor processing, provides a wafer processing device, wafer thinning equipment and a wafer processing method, and aims to solve the technical problem that the processing cleanliness cannot meet the advanced packaging nanoscale requirement due to the fact that chippings are easy to overflow and pollute and impurities are generated by sliding friction between a stopper and a workbench in existing wafer ring-retaining thinning processing. The wafer processing device comprises a workbench, a main shaft, a first blocking piece and a second blocking piece, wherein the workbench is used for bearing a wafer, and the main shaft drives the grinding wheel with the diameter smaller than that of the wafer to thin the local surface of the wafer; the first blocking piece and the second blocking piece are arranged on the workbench and movably surround a main shaft operation area through air floatation, and at least one blocking piece can be opened in a pivoted mode and fixed through the supporting piece so that feeding and discharging of wafers can be achieved. Friction impurities are prevented from being generated through the air floating type blocking pieces, protection is formed through surrounding of the blocking pieces, chippings are prevented from overflowing, and the cleanliness of wafer thinning machining is improved.

This invention provides a concealed hinge suitable for narrow windows, comprising a window connector connected to the window sash and a frame connector connected to the frame. A first connecting plate connects the window connector and the frame connector, with one side of the first connecting plate rotatably engaged with the frame connector and the other side movably connected to the window connector. A second connecting plate connects the window connector and the frame connector, with one side of the second connecting plate rotatably engaged with the window connector and the other side movably connected to the frame connector, and the first connecting plate and the second connecting plate are rotatably engaged. This invention increases the load-bearing capacity of the hinge for narrow windows and is suitable for narrow window structures with compact hinge installation positions.

This utility model belongs to the field of civil defense technology, and particularly relates to an impact-resistant civil defense security door; it includes: a door frame with at least two door panels on its outer side; a rotating assembly mounted on the door frame and connected to the door panels; and a transmission mechanism connected to the rotating assembly to provide power for opening and closing the door panels; the transmission mechanism includes: a mounting plate mounted on the left and right sides of the outer side of the door frame by bolts; a frame mounted on the mounting plate; a cylinder rotatably connected to the frame via a rotating shaft; a fixed seat mounted on the outer side of the door panels by bolts, with the fixed seat position perpendicular to the frame position; and a connecting frame mounted on the cylinder piston rod, connected to the fixed seat. This utility model provides a safer, more efficient, and automatically opening and closing impact-resistant civil defense security door.

The application relates to the technical field of vegetable and fruit storage and transportation, in particular to a foldable vegetable and fruit box which comprises a bottom plate, a front panel, side panels and a small door plate, the front panel and the side panels are hinged to the bottom plate through first hinge assemblies which can vertically slide, the hinge position of the side panels is higher than that of the front panel, when folding, the front panel is folded onto the bottom plate through the first hinge assemblies, the second front panel is moved upwards and stacked on the first front panel, the side panels are folded onto the front panel through the first hinge assemblies, the second side panel is moved upwards and stacked on the first side panel, the small door plate is connected to the front panel through second hinge assemblies, and the rotation angle of the small door plate is limited, which ensures stable opening and closing and does not affect folding, solves the problems of fixed structure and space occupation of traditional injection molding boxes, overcomes the defects of low capacity of a stacked box, inconvenience in taking and waste of the bottom space, and significantly improves the utilization rate of storage space and folding convenience through staggered folding and angle limiting technology.

The utility model provides a garden landscape observation device, which belongs to the technical field of garden landscape observation and comprises an instrument shelter, a plurality of shutters arranged on the outer surface of the instrument shelter, a mounting table fixedly connected in the instrument shelter, a temperature and humidity sensor arranged in the mounting table, and a temperature and humidity sensor arranged in the temperature and humidity sensor. By using the device, the problems that the installation time is increased, the working efficiency is reduced, meanwhile, the disassembly is inconvenient, the working efficiency is reduced, and the working efficiency is reduced because a traditional garden landscape observation device does not add a clamping part to quickly install a temperature and humidity sensor and needs to be manually fixed by using tools such as screws and nuts are solved. And the disassembly of the sensor for maintenance or replacement is more troublesome, so that the maintenance cost and time are increased.

This utility model relates to the technical field of counter-drone equipment, specifically to a high-power portable single-soldier counter-drone device. The key technical points include a main body, a support column fixed to the lower side of the main body, and a storage support structure for fixing the support column. The storage support structure includes a lower opening bracket, an upper opening bracket, a central shaft, and bearings. The lower and upper opening brackets are coaxially assembled via the central shaft, and the bearings are mounted on the central shaft to allow the upper opening bracket to rotate on the central shaft. A camouflage garment is fixed to the top of the upper opening bracket via ropes. This utility model, through its folding structure, facilitates user carrying and overcomes the problem of the main body of a high-power single-soldier counter-drone device being relatively heavy and large, making it difficult to conceal. The storage support structure saves space and creates a concealed space for easy hiding.

The utility model belongs to the technical field of feedback furnace, concretely is feedback furnace, including furnace body, both sides fixed mounting of furnace body have first flange, the bottom fixed mounting of furnace body surface has support leg, the inner wall of furnace body is provided with connecting assembly, the top of furnace body surface is provided with ventilation mechanism, one end of furnace body is provided with sealing mechanism, the one end close to sealing mechanism of furnace body is provided with overhaul mechanism, through the setting of pouring material core seat, single furnace core, second flange, air supplement window and pyrolysis gas import, the design of single furnace core multistage type can be convenient replacement and maintenance to save replacement time and can promote work efficiency, and pouring material core seat can provide support for single furnace core to ensure that single furnace core can be used stably, and the cooperation of second flange, air supplement window and pyrolysis gas import can make the inside of furnace body can realize the ventilation function to the heat wave that can make single furnace core use time produces can be discharged smoothly.

The invention discloses an explosion-proof chemical forcible entry rescue machine, and relates to the technical field of forcible entry rescue, a stainless steel forcible entry cutter for forcible entry of articles and an external force rod for additionally applying forcible entry force to the stainless steel forcible entry cutter are mounted in a forcible entry cover, and the external force rod penetrates through an outer sealing ring; the rescue device has the advantages that a double-closed barrier is constructed, external flammable and explosive gas is effectively prevented from entering or internal harmful gas is effectively prevented from leaking, the air in the forcible entry cover is extracted by the extraction pipe to form a low-oxygen environment, the air in the forcible entry cover is prevented from entering the rescue device, and the air in the forcible entry cover is prevented from entering the rescue device. The stainless steel forcible entry cutter as a core component is firm in material and not prone to generating sparks during forcible entry, the risk of spark ignition is eradicated in combination with a low-oxygen environment, the device adapts to complex environments such as combustible gas and dust in chemical places, an external force rod can apply extra forcible entry force, and it is ensured that equipment is attached to a target in the forcible entry process.