9results about How to "Reduced assembly effort" patented technology

The utility model relates to the technical field of nuclear power stations, in particular to an anti-deformation bracket for nuclear power station containment transportation. The nuclear power station containment transportation anti-deformation bracket comprises a truss and a supporting cushion frame. The truss comprises a plurality of main frame bodies, and the plurality of main frame bodies are sequentially connected end to end to form a main frame; the plurality of supporting pad frames are arranged at intervals, and are sequentially connected through the main frame; in every two adjacent main frame bodies, a first lifting lug is arranged on one main frame body, a second lifting lug is arranged on the other main frame body, the first lifting lug and the second lifting lug are connected through a first pin shaft after being matched, one of the first lifting lug and the second lifting lug is a single-side lifting lug, and the other one of the first lifting lug and the second lifting lug is a double-side lifting lug. The utility model provides an anti-deformation bracket for transportation of a containment vessel of a nuclear power station, which is used for preventing the containment vessel from being deformed in the transportation process.

This invention discloses a surface cleaning device, belonging to the technical field of cleaning equipment. It includes a body and a floor brush. The floor brush comprises a brush body with a suction port and a clean water tank for supplying liquid, mounted on the brush body. A cleaning component is detachably installed on the front side of the brush body, and the suction port is located at the rear of the cleaning component. A wastewater tank is provided on the body. The lower end of the body is pivotally connected to the rear of the brush body via a hinge assembly. The front end of the clean water tank extends forward and at least covers the cleaning component. The rear end of the clean water tank extends backward and at least partially bypasses the hinge assembly to connect with the brush body. At least a portion of the bottom wall of the clean water tank extends continuously and smoothly from left to right, penetrating the central axis of the brush. This design eliminates the need for a connecting pipe, allowing complete drainage of the liquid in the clean water tank, increasing its capacity while simplifying its internal structure.

This application provides a detachable positioning pin for power batteries, belonging to the field of new energy vehicle technology. The positioning pin includes a positioning post, a fixing bracket, and a connecting nut. The positioning post comprises multiple cylindrical segments of different diameters; the fixing bracket is detachably mounted on the positioning post and includes a U-shaped opening that mates with the cylindrical segments; the connecting nut is threadedly connected to the cylindrical segments. This positioning pin can be installed in just three steps: insertion, snapping, and tightening. Disassembly is performed in reverse. No complex tools or multiple people are required. Self-locking is achieved through a mechanical structure, reducing manpower and shortening assembly time. Simultaneously, the fixing bracket snaps into the positioning post through the U-shaped opening, and the two limiting flanges naturally conform to the two sides of the battery pack mounting point, forming a lateral constraint and preventing the fixing bracket from sliding or rotating along the battery pack surface. This ensures a rigid connection between the bracket and the battery pack mounting point, guaranteeing the axial perpendicularity and positional accuracy of the positioning post.

The invention relates to a force feedback actuator for a steering column of a vehicle, comprising a magnetorheological brake (1), the magnetorheological brake (1) having a shaft (2) arranged along an axis of rotation, and a rotor (4) and a stator (3) arranged around the shaft (2), a magnetorheological medium being arranged in a receiving space (5) formed between the stator (3) and the rotor (4), wherein the rotor (4) has at least a first and a second rotor half (4a, 4b) which are connected to one another in a forward connection.

The invention relates to a high-speed electric machine for a motor vehicle, comprising a stator and a rotor which is rotatably mounted relative to the stator along an axis, the stator comprising a stator yoke and stator teeth, the stator teeth being connected to the stator yoke in a force-fitting and / or form-fitting manner, the rotor comprises sheets which form a laminated core and are laminated in the axial direction, the laminated core comprises at least two receiving spaces in the radial direction relative to the axis, a permanent magnet is arranged in each receiving space, the corresponding permanent magnet is inserted in the corresponding receiving space in a force locking mode, and the permanent magnets are arranged in the receiving spaces. The laminated core with the permanent magnets has a circular outer contour in the radial direction with respect to the axis, wherein the rotor is enclosed by a retaining strip for fixing the permanent magnets in the laminated core.

The utility model belongs to aerospace technology field, concretely relates to a propeller integral forming die, the utility model discloses a propeller integral forming die includes first mould and second mould, and the first mould has the profiling groove, and the second mould has the profiling boss, and the second mould and first mould buckle and connect, and the profiling boss is used for and the profiling groove plug-in and form propeller forming cavity. Using the propeller integral forming die in the technical scheme can realize the integrated forming of propeller, and the propeller prepared using the propeller integral forming die can significantly improve the structural reliability of equipment propulsion system, reduces the assembly error, and is convenient for dynamic balance debugging.

The utility model belongs to the field of heat exchangers, and discloses a shell-and-tube heat exchanger and a mariculture heat pump unit adopting the shell-and-tube heat exchanger, the shell-and-tube heat exchanger comprises a tube box, a tube plate, a heat exchange tube bundle and a heat exchanger cylinder, and the heat exchanger cylinder comprises a heat exchanger cylinder A and a heat exchanger cylinder B which are connected through a cylinder flange and a threaded fastener; the mariculture heat pump unit comprises a compressor, a condenser, an expansion valve and a shell-and-tube heat exchanger which are connected through a refrigerant pipeline. A bottom support of a heat exchanger cylinder is fixedly connected with a unit frame through a threaded fastener. When the heat exchange tube bundle needs to be cleaned or overhauled, only one section of the barrel needs to be disassembled and assembled, so that the workload of disassembly and assembly is small, the cleaning operation efficiency is high, the required working space is small during the cleaning operation, and the field operation is convenient.

The utility model provides a water pumping test device which comprises a weir box and a machine frame, the weir box is installed on the machine frame, wheels are installed at the bottom of the machine frame, a clamping mechanism is installed on the machine frame, and a vertically-distributed submersible pump is fixedly clamped by the clamping mechanism. An electric winch, an electric pipe winder wound with a water pipe and an electric winder wound with a cable are fixed on the rack, a steel rope of the electric winch is fixedly connected with the submersible pump, the free end of the water pipe and the free end of the cable are both connected with the submersible pump, and a rotary joint of the electric pipe winder is connected with the weir box through a connecting pipe. A tripod does not need to be temporarily built on a water pumping test site, the site assembly workload can be reduced, operation is convenient and fast, the early-stage preparation time can be shortened, and the labor intensity of workers can be reduced.