13results about How to "Reduce product weight" patented technology

A vehicle end junction box of a light rail vehicle relates to the technical field of light rail vehicles, combines a high pressure box and a low pressure box into a whole to reduce space, and can achieve the purpose of effectively reducing light pollution. In the light rail vehicle end junction box, the box body is made of an aluminum alloy material and the surface is subjected to paint spraying treatment, and the box cover is made of a stainless steel material and the surface is subjected to wire drawing treatment; the box body is divided into two junction box cavities which are separated by a partition plate, and the partition plate is used for achieving an anti-interference effect; meanwhile, the low-voltage connector and the high-voltage connector are connected with wires in a vehicle by using a terminal strip in the box body; wherein the low-voltage low-current terminal row adopts a quick wiring structure, and a lead is directly inserted into a wiring hole after being crimped with a pre-insulated terminal; the low-voltage large-current terminal row and the high-voltage terminal row adopt a stud wiring mode, and the copper pipe terminal is connected to the terminal row through the lead in a pressing mode and is connected to the terminal row through the socket spanner.

The utility model relates to a heat exchanger side plate, a heat exchanger assembly and a vehicle. The heat exchanger side plate provided by the utility model comprises a body; the at least one first mounting hole is formed in one side of the body; and the at least one second mounting hole is positioned on the other side of the body. Parts such as the wind scooper and the fan shell are connected through the novel heat exchanger side plate, extra screws and the like are not needed, and the weight of the heat exchanger assembly is reduced while the cost is saved.

The present application provides a coaxial unmanned helicopter rotor control system for controlling the flight attitude of the unmanned helicopter, the operating system includes: a swash plate, a torque arm and a steering gear, the torque arm and the steering gear are respectively connected to the two sides of the swash plate, and the steering gear is connected to the swash plate through a connecting rod; a joint bearing is arranged inside the swash plate, the joint bearing includes a joint bearing inner ring and a joint bearing outer ring, the joint bearing inner ring is integrally connected to the main shaft, and the joint bearing outer ring is rotatably connected to the outer peripheral side of the joint bearing inner ring. The control system of the present application has the characteristics of simple structure, easy assembly, high production efficiency, simple control and low cost.

The invention provides CNC pressure riveting equipment, a pressure riveting method, an electronic equipment shell and electronic equipment, the CNC pressure riveting equipment comprises a three-dimensional movement mechanism and an extrusion head, the extrusion head is connected with the three-dimensional movement mechanism, and the three-dimensional movement mechanism drives the extrusion head to perform spatial three-dimensional movement; and the extrusion head is used for extruding the side wall of the material to be riveted. According to the CNC press riveting equipment, the press riveting method, the electronic equipment shell and the electronic equipment, the shell made of the metal material and the connecting column can be riveted together, and the CNC press riveting equipment has the advantages of being high in machining precision, high in machining efficiency, low in machining cost and light in product weight.

The invention belongs to the technical field of civil aviation lifesaving devices, and discloses a civil aviation handheld rocket launching firework signal detonator which comprises a stay wire ball (1), a protective cap (2), a sealing gasket (3), a rear cover (6), a firing device (7), a shell (8), a launching tube (9), a propelling assembly (10), transition ignition powder (11), a limiting ring (12), a starlight assembly (13), a parachute (14), an inner cover (15) and sponge (16). The firing device (7) and the launching tube (9) are arranged in the shell (8), and the firing device (7) is located at the rear end of the launching tube (9); a rear cover (6) is arranged at the rear end of the shell (8), and the firing device (7) is fixedly connected with the signal flare rear cover (6). And the rear end of the percussion device (7) is connected with the stay wire ball (1) through a cotton thread. The device is high in design reliability, easy to operate, high in safety, capable of bearing severe environments and capable of guaranteeing the reliable launching effect in various environment areas.

This invention relates to the field of base station antenna technology and provides a low-loss sheet metal phase shifter, comprising a cavity shell, a sheet metal network, a phase-shifting medium, a supporting medium, and an RF connector. The cavity shell has through-holes on both sides. Inside the cavity shell are two isolated inner cavities, each with a set of sheet metal networks. The phase-shifting medium and the supporting medium are respectively located on both sides of the sheet metal networks. The phase-shifting medium can slide back and forth along the length of the sheet metal network. The supporting medium has at least one hollow unit, which is uniformly distributed along the thickness direction of the supporting medium. The supporting medium is made of a low-dielectric-constant, low-loss insulating material. The RF connector passes through the side wall of the cavity shell and is electrically connected to the sheet metal network. Therefore, the low-loss sheet metal phase shifter of this invention reduces signal transmission loss, is energy-efficient, and has a stable and reliable structure.

The invention relates to a near-to-eye display device, an optical system and electronic equipment, the near-to-eye display device comprises a first optical lens, an optical waveguide sheet and a second optical lens, the first optical lens is provided with a first outer surface and a first inner surface, and the optical waveguide sheet is provided with a first plane and a second plane; the second optical lens is provided with a second outer surface and a second inner surface, at least part of the first outer surface is a curved surface, at least part of the second outer surface is a curved surface, and at least one of the first inner surface and the second inner surface is a plane; a coupling-in grating is arranged on one surface of at least one of the first optical lens and the second optical lens, a coupling-in grating is arranged on at least one of the first plane and the second plane, and a coupling-out grating is arranged on at least one of the first inner surface and the second inner surface. The inner surface where the out-coupling grating is located is a plane, and at least one of the first plane and the second plane is provided with the out-coupling grating.

The utility model discloses a kind of lower lock type full plastic press pumps, comprising: pump shell, pump chamber is equipped in pump shell, the lower end of pump chamber is equipped with first check valve;Pump pipe, it is slidably arranged in pump chamber, and its lower end is equipped with second check valve;Piston, it is sleeved in the lower part of pump pipe;Rotary seat, it is connected in pump shell by screw thread, and can be lifted in it Adjustment;Guide cover, it is fixedly connected or integrally connected in the upper end outer side periphery of pump pipe;Elastic reset piece, it is arranged between rotary seat and guide cover;Circumferential limiting structure, it is arranged between guide cover and rotary seat;Wherein, in the state that pump pipe is under depression, by rotating pump pipe, rotary seat is driven to move downwards, so that the distance between rotary seat and guide cover increases, so that elastic reset piece keeps relaxed state.The utility model has the advantages of simple structure, convenient operation, and can effectively avoid the advantages that elastic reset mechanism is invalid due to long time pressure.

The present invention relates to a floating brake caliper (1) for a disc brake, comprising a caliper body or floating element (2), a bracket or support element (3) configured to be connected to a vehicle, and at least one sliding guide or guide pin (4, 5), wherein the at least one sliding guide (4, 5) is arranged between the caliper body (2) and the bracket (3) to allow relative sliding between the caliper body (2) and the bracket (3) in an axial direction (A-A), wherein the caliper body (2) includes a first caliper portion or a vehicle-side caliper portion (6), wherein the first caliper portion (6) defines a receiving seat (7) for a thrust device (8), wherein the caliper body (2) includes a second caliper portion or a cantilevered caliper portion (9), wherein the second caliper portion (9) protrudes from the first caliper portion (6) at least in an axial direction (A-A) on the opposite side relative to the vehicle, such that the caliper body (2) is arranged to straddle the brake disc, wherein each sliding guide (4, 5) includes The device includes a guide sliding portion (10) slidably received in a corresponding sliding seat (11, 12), wherein the corresponding sliding seat (11, 12) is formed in the bracket (3) or the clamp body (2); a guide fixing portion (13) fixed to or rigidly constrained to the clamp body (2) or the bracket (3); and a screw head (14) wherein the screw head (14) defines at least one operating seat (15) such that the screw head (14) can be manipulated by a user and / or a tool to fix the at least one sliding guide (4, 5) to the clamp body (2) or the bracket (3), the screw head (14) being arranged on the side opposite to the first clamp body portion (6) in the axial direction such that the screw head (14) can be manipulated on the side opposite to the first clamp body portion (6) in the axial direction to fix and / or remove the at least one sliding guide (4, 5) relative to the clamp body (2) or the bracket (3).

The present application belongs to the field of battery technology, and specifically relates to a battery shell for energy storage and a production method thereof. The production method prepares an aluminum alloy melt, pressurizes and maintains the pressure when injecting it into a mold for a battery shell for energy storage, and then undergoes heat treatment, hot stamping, and quenching cooling steps to obtain a battery shell for energy storage. The battery shell for energy storage produced by the production method of the present application has high mechanical properties, thermal stability, and corrosion resistance.

The present invention relates to an oil-gas separation type three-chamber zero-backlash automobile shock absorber, comprising a cylinder, a piston rod is installed in the inner cavity, a lower plug assembly is installed at the bottom of the inner cavity, an upper plug assembly is installed at the connection between the piston rod and the cylinder, the end of the piston rod extending into one end of the inner cavity is installed with a piston assembly linked with the piston rod, a float assembly movable along the inner cavity is installed in the inner cavity, an air cavity is formed between the float assembly and the lower plug assembly, an inflation valve is installed in the air cavity, a second oil cavity is formed between the piston assembly and the float assembly, a first oil cavity is formed between the upper plug assembly and the piston assembly, the first oil cavity and the second oil cavity are filled with shock-absorbing oil, a sealing ring type two-way valve structure is arranged in the piston assembly, the sealing ring type two-way valve comprises a first oil-passing valve structure for causing the shock-absorbing oil to flow from the second cavity into the first cavity when the piston rod moves downward, and a second oil-passing valve structure for causing the shock-absorbing oil to flow from the first cavity into the second cavity when the piston rod moves upward.

The utility model discloses a tail plate casting structure in a die-casting machine. The tail plate casting structure comprises a casting part and a plurality of large steel bushings. A plurality of groups of hinge lugs are arranged on the casting part; the plurality of large steel bushings are correspondingly mounted on the plurality of hinge lugs; in any group of the hinge lugs, bosses are arranged on the outer sides of the two hinge lugs located on the two sides, and the bosses are suitable for being used as references when the large steel member is installed. The mounting structure has the beneficial effects that compared with an existing mounting structure for the steel bushings of the die-casting machine, the boss designed by the mounting structure can enable the large steel bushings to have a reference during mounting; meanwhile, due to the arrangement of the rough section on the large steel member, the large steel member can be installed in the hinge lug more firmly, and the position can be adjusted more conveniently, so that under the condition that the strength of the machine hinge is not affected, the manufacturing procedures of the middle plate and the tail plate and the product weight are reduced, the material turnover period is shortened, and the production cost is reduced. And the material and labor cost is reduced.