226results about How to "Reduced assembly effort" patented technology

The invention discloses a low-cost technologically-molded carbon fiber composite material subway vehicle body and a manufacturing method thereof. The subway vehicle body comprises a carbon fiber outer covering, a carbon fiber inner covering, and a sandwich layer paved between the carbon fiber outer covering and the carbon fiber inner covering. The invention also discloses a manufacturing method of the carbon fiber composite material subway vehicle body, which comprises the following steps: (1) paving and adhering carbon fiber fabric prepregs, carrying out OOA technological molding on carbon fiber outer covering; (2) paving honeycombs, foams and pre-modled pre-embedded parts on the carbon fiber outer covering to be used as the sandwich layer, and carrying out OOA technological molding on the sandwich layer; (3) paving and adhering the the carbon fiber fabric prepregs on the sandwich layer, and carrying out OOA technological molding on the carbon fiber inner covering, i.e. integration on the vehicle body. According to the low-cost technologically-molded carbon fiber composite material subway vehicle body and a manufacturing method thereof disclosed by the invention, the weight of the subway vehicle body is effectively reduced, the aim of the lightweight of the vehicle body is fulfilled, the energy consumption of the vehicle body is reduced, and the service life of the vehicle body is prolonged; moreover, by adopting the OOA molding technology with low cost, the cost of the molded carbon fiber composite material subway vehicle body is greatly reduced.

The invention discloses an assembled goods shelf, and belongs to the technical field of commercial facilities. The assembled goods shelf comprises stand columns which are arranged face to face, carrying plates which are correspondingly arranged among the stand columns and stand column supporting cross beams. The assembled goods shelf is characterized in that carrying plate hitching legs arranged on the stand columns are further included, a cross beam hanging plate is arranged in the middle of the side, facing the corresponding stand column supporting cross beam, of each stand column, the cross beam hanging plates are provided with cross beam fin positioning holes and cross beam locking piece positioning holes, the sides, facing the stand column supporting cross beams, of the stand columns are provided with carrying plate hitching leg embedded holes, the left end and the right end of each stand column supporting cross beam are provided with a pair of cross beam fins and a pair of cross beam locking pieces respectively, a pair of the cross beam fins and the corresponding cross beam hanging plate are locked at the positions corresponding to the cross beam fin positioning holes, and the cross beam locking pieces and the corresponding cross beam hanging plate are locked at the positions corresponding to the cross beam locking piece positioning holes; each carrying plate hitching leg is connected between every two adjacent carrying plate hitching leg embedded holes formed in the stand columns, and the front ends and the back ends of the carrying plates in the short-edge direction are matched with the carrying plate hitching legs in an embedded mode. Accordingly, the manufacturing and assembling workload is reduced, resources are saved, and the assembling speed is increased.

A telescopable shaft (5) has an inner shaft (12) and a tubular shaft (13) that are fitted to each other so as to be relatively movable in an axis direction (X1) and to be able to transmit torque between each other. A row of rolling bodies (14) is interposed between corresponding axial grooves (15, 16) of the inner shaft (12) and the outer shaft (13). A retaining member (17) moving together with the rolling balls (14) while retaining the balls (14) has a facing section (33) facing an end surface (121) of the inner shaft (12). As the telescopable shaft (5) telescopes in and out, the facing section (33) comes into contact with the end surface (121) of the inner shaft (12), and this limits the movement of the rolling bodies (14) in the axial direction (X1).

The invention discloses a cleaning tool. The cleaning tool comprises a mop bucket and a mop. The mop comprises a mop rod, a bottom board and a rotation joint. The mop rod comprises an outer rod body and an inner rod body. The rotation joint comprises a first rotation part and a second rotation part. The bottom of the mop bucket is provided with a lifting mechanism. The lifting mechanism comprisesa fixing column fixed at the bottom of the mop bucket, a moving tube and a positioning rod. The moving tube is sheathed outside the fixing column. The positioning rod passes through the moving tube and is inserted in an inserting hole at the center of the fixing column, and the positioning rod is rotated relative to the fixing column. The lifting structure of the cleaning tool is simplified, and the operation is convenient, so the washing and dewatering functions of the mop are combined and coaxially performed, and the volume of the mop bucket can be reduced. The locking structure of the mop rod is simplified, and the angle between the mop rod and a faceplate can be conveniently adjusted and positioned. The locking structure is suitable for the mop or other cleaning tools with the similardemand. In addition, wiping cloth is effectively fixed on a bottom plate of the mop through a fixing claw by the lower faceplate, so the service life of the mop is prolonged.

The invention relates to a linear driving device and aims to provide a mechanical and electrical integration linear driving device which is reliable in performance, simple in structure, convenient to assemble, and cost-saving. The mechanical and electrical integration linear driving device comprises an output shaft, a lead screw pair and a cylinder body, wherein the output shaft is connected with the lead screw pair, a stator module is fixed inside the cylinder body, a lead screw nut of the lead screw pair is of a long cylinder shape, and a rotor module which is matched with the stator module is fixed outside the lead screw nut. The stator module of a motor is designed on the lead screw nut of the lead screw pair, namely the motor stator module and the lead screw nut are regarded as a whole to form a stator of the motor, the motor stator is placed inside the linear driving device, namely the motor stator module and the cylinder body are regarded as a whole to form a rotor of the motor, and therefore mechanical and electrical integration of the linear driving device is achieved. The mechanical and electrical integration linear driving device has the advantages of being reliable in performance, simple in structure, convenient to assemble and cost-saving.

A modularized planar antenna structure includes an antenna unit, a connection unit, a circuit board and a cover. The modularized planar antenna structure connects the antenna unit and circuit board. The antenna unit includes a signal feeder electrically connected the circuit board at end thereof such that the antenna unit is vertical to the circuit board. The cover is assembled to the circuit to protect the circuit board from electromagnetic interference or strike of external article. When the antenna structure is assembled to a main circuit board of an electronic device, the circuit board can be directly assembled to the main circuit board of an electronic device and the circular-polarized antenna unit points toward zenith direction to receive satellite signal.

The invention discloses a safety braking method of an automatic escalator, which is characterized by comprising the following steps of: adopting a sensor to detect the abnormal condition of the automatic escalator and/or passengers, transmitting feedback signals of the sensor to a control cabinet to cut off a power supply of a motor for braking, and carrying out locked braking on a chain wheel connected with the motor. In the invention, a double-braking mode is adopted for the occurring abnormal condition of the automatic escalator and the passengers, so that the inverse operation of the escalator is avoided and the safety of the passengers is ensured.

The invention provides a carbon fiber composite material end wall structure for subway, which includes an end wall interlayer structure, a grounding copper bar, a drainage pipe, a wiring trough installation hanger, an electrical cabinet installation seat and a cable tie rod. The end wall interlayer structure includes an integral reinforcement frame, Honeycomb sandwich core, end wall inserts, inner skin and outer skin, the overall reinforcement frame, honeycomb sandwich core, and end wall inserts are all built between the inner skin and outer skin, and the overall reinforcement frame adopts an integrated hat-shaped structure , the two sides of the overall reinforced frame are respectively provided with honeycomb sandwich, the end wall inserts are set in the honeycomb sandwich, the end wall inserts are provided with threaded holes, and the grounding copper bar is connected to the inner skin of the end wall sandwich structure by glue riveting The upper part of the side; this kind of carbon fiber composite material end wall structure for subway can give full play to the characteristics of high specific strength and large specific modulus of carbon fiber composite materials, and the effect of weight reduction is outstanding; the integrated design simplifies the redundant traditional welding structure , reduce the assembly workload.

The invention discloses a process method for assembling and welding a pile leg of an ocean platform. According to the method, the production speed is high, and the percent of pass of products is high. A pile leg assembly is composed of a rack and two semicircular pipes. Coming cargo examination should be carried out on the rack and the semicircular pipes carefully, and the rack and the semicircular pipes are installed through a tool. The rack is turned over through a turnover device. The assembled pile leg examined to be qualified is lifted to an electric heating furnace stage trolley, conveyed into a furnace and heated, wherein the temperature ranges from 150 DEG C to 200 DEG C. The temperature in a hearth should be kept even. The heated pile leg is placed on the ground. Two welding joints are in the horizontal state. Manual welding rods are used for backing welding. Welding is performed on the pile leg by four welding workers from the middle position. The two sides are simultaneously and symmetrically welded. After welding is finished, the pile leg is turned over and welded continuously. After the welding joints are backed for 1 to 2 layers, the pile leg is lifted to roller carriers on a submerged arc welding production line and then formally welded. The welded pile leg is conveyed into a thermal treatment furnace, the heating temperature ranges from 200 DEG C to 280 DEG C and maintained for 2 to 3 hours, and then the pile leg is delivered out of the thermal treatment furnace.

A small unmanned plane undercarriage buffer relates to the field of aviation aircrafts and solves problems of low buffering efficiency, easy bounce, low reliability of a present flat spring type buffer. The small unmanned plane undercarriage buffer comprises an external cylinder, a first spring on the external cylinder, an internal cylinder having a damping hole, an air sac between the external cylinder and the internal cylinder; an upper joint, a lower joint, a piston rod extending into the internal cylinder, a piston, a damping plate, a pressure-limiting valve, a check valve, a guide sleeve and a locking cover, wherein the piston rod is orderly covered with the piston, the damping plate and the pressure-limiting plate; the piston rod is orderly covered with the check valve, the guide sleeve and the locking cover; the check valve, the guide sleeve and the locking cover are all disposed in the external cylinder; an internal-external cylinder annular oil storage cavity is formed between the internal cylinder and the external cylinder; the damping plate axially moves along the piston rod; the pressure-limiting plate limits maximum damping force to a preset valve during compression stroke; after the locking cover is tightly screwed, the guide sleeve, the check valve and the internal cylinder are axially pressed to the lower joint; the check valve controls communication between the internal-external cylinder annular oil storage cavity and a right cavity of the internal cylinder; and two ends of a first spring are respectively pressed against the upper and lower joints. The small unmanned plane undercarriage buffer possesses high buffering efficiency, uneasy bounce, stable performance and great reliability.

The invention discloses a fruit fly trapper which relates to the means for killing pest, comprising bottle cap 1, bottle body 2 and means of attractant. Said bottle cap 1 comprises a semi-closed channel 9 with a horizontal open, a transfusion bottle ear 6, and a cover base 11 with a vertical channel and several channels as entrance for pest, to be an integral body which can be injected molding in one shot by common mold. Considering the biological characteristics of pest and the requirements of producing fruit fly trapper, the invention has fewer elements between 50-80 %, less investment of producing molds between 40-70 %, and more production efficiency between 100-300 % contrasting to prior trappers that have similar function of preventing escape.

The invention discloses a VARI (Vacuum Assistant Resin Infused) integral moulding clear dimension composite material ribbed structure manufacturing method. The manufacturing method comprises the following steps: manufacturing an envelope prefabricated body by adopting an envelope moulding steel mould; manufacturing C-shaped ribs and I-beam prefabricated bodies by adopting wood substituted prefabricated body moulds; then, paving a drainage net and de-moulding cloth at the lower part of the manufactured envelope prefabricated body; assembling the manufactured C-shaped ribs and the manufactured I-beam prefabricated bodies onto the envelope moulding steel mould with the envelope together with a core mould; and finally, performing resin importing and resin curing on an overall composite material ribbed structure in a curing oven. The composite material ribbed structure manufactured by the manufacturing method is of a clear size integral structure; subsequent processing is not required; the assembling workload is reduced; point connection of screw connection and rivet connection is avoided; the rigidity and the strength of the overall structure are improved; in addition, the processes of prepreg storing and autoclave curing are eliminated by adopting a VARI process; the cost is lower compared with the conventional autoclave process.

The invention provides a carbon fiber composite subway vehicle body formed through a low cost process. The carbon fiber composite subway vehicle comprises a U-shaped vehicle body, end walls and a bottom frame, the U-shaped vehicle body is arranged on the bottom frame, and the end walls are arranged at the two joint ends of the U-shaped vehicle body and the bottom frame; the U-shaped vehicle body adopts a sandwich structure, the U-shaped vehicle body comprises a first outer skin, a first sandwich layer and a first inner skin which are sequentially arranged from outside to inside; the end wallsadopt the sandwich structure, each end wall comprises a second outer skin, a second sandwich layer and a second inner skin which are sequentially arranged from top to bottom; the bottom frame adopts the sandwich structure and comprises a third outer skin, a third sandwich layer and a third inner skin from top to bottom; not only is the number of spare parts reduced, but also heat-insulating performance is excellent, the low cost composite forming process is adopted for overall forming, the total cost of the carbon fiber composite subway vehicle body is reduced on the whole; and meanwhile, performance characteristics of carbon fiber composite is fully exerted, the defects that an existing vehicle body is great in weight, poor in corrosion resistance and anti-fatigue performance and short inusing period are overcome.

The invention provides a soft driving structure of a lower limb rehabilitation robot. The soft driving structure of the lower limb rehabilitation robot comprises a double-layer air bag and a fixed connecting piece, wherein the double-layer air bag comprises a soft air bag body made of silicon rubber, the end of the soft air bag body is connected with the fixed connecting piece, and a conical surface is arranged at the joint of the inner side of the soft air bag body and the fixed connecting piece; the fixed connecting piece comprises an end cover, an air hole cover and a fixing nut, the air hole cover is in sealed connection with the double-layer air bag, the end cover covers the air hole cover, a vent pipe is arranged on the air hole cover, a through hole is formed in the end cover, one end of the vent pipe penetrates through the through hole and is exposed out of the end cover, and the exposed part is assembled and fixed through the fixing nut; and the air hole cover is provided with a conical surface used for being attached to the conical surface of the soft air bag, and a conical surface attached to the air hole cover is arranged on the inner side of the end cover. With adoption of design of conical surface assembly, the pressure resistance and tolerance of the soft driving structure are improved, the joint rotating torque can be effectively improved, and the part loss is reduced.

This blood pressure meter is configured in such a manner that a pump unit (31) is connected to a fluid bag (22) through a first fluid path (301). The first fluid path (301) extends straight in the Z-direction between the pump unit (31) and the fluid bag (22) and is adapted so as to deliver air, which is supplied from the pump unit (31), into the fluid bag (22) or so as to deliver air, which is within the fluid bag (22), to a valve.