237results about How to "Avoid bending damage" patented technology

The invention relates to an electrical plug connector which comprises an insulated housing, a metallic shell, two terminal sets, and a circuit board. The insulated housing includes a front portion and a rear portion. The front portion extends forwardly from the rear portion and an inside of the front portion forms a receiving cavity. The metallic shell covers the insulated housing. Each terminal set is composed with a plurality of terminals. Each terminal includes a contact portion, a retaining portion, and a soldering portion. The retaining portion is retained in the insulated housing. The soldering portion extends backwardly from the retaining portion. The soldering portions are arranged as a upper row and a lower row in symmetry and the soldering portion is in spring arm type. The circuit board is inserted between the upper row and the lower row of the soldering portions. The upper row and the lower row of the soldering portions clip elastically the circuit board.

The invention discloses a health care cushion. A transition water bag is arranged in a cushion body, a cold water bag and the transition water bag are vertically stacked, a semiconductor refrigerating sheet is arranged on the adhering portion of the cold water bag and the transition water bag, a refrigerating surface and a heating surface of the semiconductor refrigerating sheet adhere to the cold water bag and the transition water bag respectively, and a water circulating and flowing circulation passage formed by communicating a connection pipe and a pump body is arranged between an inner cavity of the transition water bag and an inner cavity of the hot water bag. The semiconductor refrigerating sheet can be relatively small, the whole refrigerating surface and the heating surface of the semiconductor refrigerating sheet can adhere to the cold water bag and the transition water bag respectively, and the whole semiconductor refrigerating sheet can be stably supported to prevent deformation of the cushion body, so that the semiconductor refrigerating sheet cannot be bent or damaged.

The invention discloses a welding type slab crack joint for a precast concrete floor system used in a building. The welding type slab crack joint comprises an X-shaped connection piece, a cover slab type connection piece, a support plate side overhanging platform and a supported plate side overhanging platform, wherein the X-shaped connection piece consists of anchor bars, panels and panel strips; the cover slab type connection piece consists of reinforcing steels arranged at the bottom of a slab, an embedded steel plate and a cover plate; the upper ends of the support plate and supported plate sides are provided with metal embedded pieces which consist of the anchor bars and the panels; the panels of the support plate is fixedly connected with the panels of the supported plate by the panel strips to form the X-shaped connection piece; the lower ends of the support plate and the supported plate sides are embedded with metal plates which are welded with the reinforcing steels at the bottom of a precast slab; the embedded metal plates of the support plate and the supported plate are fixedly connected by a metal cover plate to form a cover plate type connection piece; and after being overlapped with each other, the support plate side overhanging platform and the supported plate side overhanging platform are fixedly connected by the X-shaped connection piece at the top of the slab and the cover plate type connection piece at the bottom of the slab.

The invention relates to a blueberry picking and sorting apparatus and a working method, and belongs to the technical field of planting machinery and equipment. The blueberry picking and sorting apparatus and the working method are in particular applicable to picking and preliminary sorting of dwarf blueberries in mountains. The apparatus includes a bottom frame and a machine frame arranged on thebottom frame. The machine frame is equipped with a picking device and a sorting device. The picking device is used for picking fruits. A collection bin is arranged on the bottom frame. The picked fruits are placed in the collection bin, and then sent to the sorting device by a conveyor belt for multi-level sorting. With the apparatus of the invention, the efficiency of blueberry picking operationcan be improved, the artificial labor intensity can be reduced, and multiple damage to blueberry vines can be reduced.

A friction-type quality turning wheel damper comprises a spiral actuating rod. The spiral actuating rod is connected with a round connecting plate after penetrating through a high strength shell, an upper positioning pressure bearing body, quality turning wheels and a lower positioning pressure bearing body sequentially. The upper end of the spiral actuating rod stretches out of the high strength shell, a first pre-pressing spring is arranged between the lower positioning pressure bearing body and the round connecting plate, a second pre-pressing spring is arranged between the round connecting plate and a sub plate fixed at the lower end portion of the high strength shell, and a connecting rod is connected to the lower end portion of the high strength shell. Slide grooves are formed in the upper positioning pressure bearing body and the lower positioning pressure bearing body, arc-shaped friction plates are mounted in the slide grooves, the arc-shaped friction plates are matched with the quality turning wheels, arch-shaped hinges are connected to the arc-shaped friction plates, and ultra-magnetostriction materials are connected to the arc-shaped hinges. Skeleton sleeves are arranged on the ultra-magnetostriction materials, field coils are wound on the skeleton sleeves, and the other ends of the ultra-magnetostriction materials are fixed on the high strength shell. The friction-type quality turning wheel damper can adapt to energy dissipation and seismic mitigation under different seismic actions, and increase the output force of the damper at the same time, and is high in response speed.

The invention discloses a stable charging terminal base and a dust collector. The stable charging terminal base comprises a charging terminal base, which has a plug and a connection portion which arein vertical connection mutually; a hanger cover plate, which has a hole for allowing the plug to pass; and a hanger base, which has a hook contacting and limiting the connection portion, wherein the hanger cover plate and the hanger base are matched up and down; the charging terminal base is arranged between the hanger cover plate and the hanger base; and the hook limits translational degree of freedom of the charging terminal base to the hanger cover plate. The hook has a vertical arm vertically protruding out of the hanger base and a horizontal hook vertically connected with the top end of the vertical arm, wherein the height of the vertical arm is equal to the vertical thickness of the connection portion, and the side end of the horizontal hook has a limit edge matched with the side profile of the plug. The hanger base limits the degree of freedom of vertical movement of the charging terminal base, thereby preventing the case that when the charging terminal base is under force, thehanger cover plate is pulled out.

The invention discloses a battery replacement type pure electric heavy truck battery replacement system structure, and relates to the technical field of heavy truck battery replacement systems, the battery replacement type pure electric heavy truck battery replacement system structure comprises a vehicle-mounted battery replacement base and a battery replacement type battery box assembly used for being connected with the vehicle-mounted battery replacement base in a matched mode, and a multi-stage guide assembly is arranged between the vehicle-mounted battery replacement base and the battery replacement type battery box assembly in the height direction; the multi-stage guide assembly is used for limiting the vehicle-mounted battery replacement base and the battery replacement type battery box assembly to do relative displacement movement in the horizontal direction and the vertical direction; wherein the first-stage guide assembly comprises a plurality of locking bases used for being fixedly connected with a vehicle-mounted battery replacing base, and the locking bases are fixedly installed on the battery replacing type battery box assembly and provided with waist-groove-shaped locking groove holes; and the vehicle-mounted battery replacing base is provided with a plurality of rotary knob type locking pins used for being fixed to the corresponding locking bases in a matched mode, and the rotary knob type locking pins are connected with driving pieces for driving the rotary knob type locking pins to rotate. The connecting structure has the effect of being stable.

The invention relates to a carrier roller set, in particular to a deep groove carrier roller set. The deep groove carrier roller set solves the problems that the freight volume is reduced and a belt is bent and abraded easily due to the fact that a carrier roller set in the prior art is small in groove angle. The deep groove carrier roller set is large in groove angle, comprises a middle carrier roller and side carrier rollers installed on a cross beam, and is characterized in that the included angle between each side carrier roller and the cross beam is 65 degrees, and the included angle between the middle carrier roller and the cross beam is 20-30 degrees. According to the deep groove carrier roller set, the groove depth is further increased by increasing the groove angle of the side carrier rollers to 65 degrees, the clamping force and the frictional force of a conveying belt on materials are increased so that the conveying belt can operate safely and stably in a roadway with a large gradient, and meanwhile the freight volume is guaranteed. In the operating process, the middle carrier roller and the side carrier rollers can be arranged front and back, and the belt can be effectively prevented from being bent and damaged.

The invention discloses detection equipment for an integrated circuit packaging finished product in the technical field of detection of integrated circuit packaging finished products. The detection equipment comprises a detection table, wherein a positioning mechanism used for positioning an integrated circuit is arranged at the bottom of the detection table. According to the invention, when a packaged integrated circuit needs to be detected every time, the integrated circuit is slowly pushed to an accurate detection position through a positioning mechanism; and in a pushing process, by matching with a follow-up rotating mechanism, the follow-up rotating mechanism is in a protruding state firstly and elastically supports the integrated circuit, when the integrated circuit is pushed, abrasion of the integrated circuit is reduced through follow-up movement so as to protect the integrated circuit and prevent the the integrated circuit from being damaged in the automatic adjustment process, and after the integrated circuit is pushed in place, the follow-up rotating mechanism automatically retracts under the action of the positioning mechanism, so that the bottom of the integrated circuit completely makes contact with the top of the detection table, the integrated circuit is prevented from being extruded to be bent and damaged in the detection process, the integrated circuit is protected, the whole process is automatically carried out, and convenience and rapidness are realized.

The invention relates to the technical field of molds, in particular to an automatic mold opening and closing mechanism. The automatic mold opening and closing mechanism comprises an upper mold, a lower mold and a bottom plate, wherein the lower mold is fixedly arranged on the bottom plate, a plurality of guide columns are arranged between the upper mold and the lower mold, the upper end of the upper mold communicates with an oil cylinder through a piston rod, and the upper mold can move up and down along the guide columns under the action of the oil cylinder to do mold opening or mold closingaction; containing boxes with openings in the upper ends are fixedly arranged on the left side and the right side of the lower mold, limiting blocks are fixedly arranged on the front side wall and the rear side wall in each containing box, and arc-shaped surfaces which are arched inwards are arranged in the middles of the limiting blocks; and two elastic pieces which are symmetrically arranged front and back are fixedly arranged on the side wall of the upper mold right above the containing boxes, and arc-shaped extrusion parts matched with the limiting blocks are arranged in the middles of the elastic pieces. According to the automatic mold opening and closing mechanism, the elastic pieces, the limiting blocks, a mold locking block, a first clamping block, an iron block and a permanent magnet chuck are arranged so that the self-locking of multiple positions can be realized while mold closing is carried out, and the energy consumption of mold locking is reduced.

The invention relates to a composite filtering material for a fuel filter and a preparation method. The composite filtering material for the fuel filter contains three layers, i.e. a base paper layer, an interlayer and a protective surface layer, wherein the base paper layer contains superfine PBT (polybutylene terephthalate), PVA (polyvinyl alcohol) and viscose chopped fibers with lengths of 2 to 6 millimeters; the interlayer is PBT melt-blown fine cloth; the protective surface layer is PET/PBT (polyethylene terephthalate/polybutylene terephthalate) blended viscose cloth. The preparation method for the composite filtering material comprises the following steps of feeding the three substrate layers into point type patterned rollers through three pairs of tension regulation rollers respectively, and performing hot compression molding. According to the composite filtering material and the preparation method, the base paper layer has a function of completely adsorbing water in a fuel; the three layers contain the superfine PBT fibers, so that the filtering material is soft and resistant to folding, the blocking rate can be maximally reduced, and the filtering efficiency and accuracy are improved; in addition, the superfine PBT fibers are used as a connecting material, so that the operating temperature of the fuel filter can be born, and bending damage to filtering paper during high-speed folding can also be avoided.

The invention discloses a hydraulic pipeline connection structure of a hydraulic mud gun. The hydraulic pipeline connection structure comprises a base, a crank arm, a gun tube and a tumbler; wherein the crank arm is arranged on the base; a mud filling cylinder and a gun nozzle connected with the mud filling cylinder are arranged at the front end of the gun tube; a mud making cylinder is arranged at the rear end; one end of the tumbler is rotationally connected to the base; the other end is hinged on the gun tube; rotary joints are arranged at two ends of the tumbler and on the joint of the base and the gun tube; a hydraulic hoses of the mud making cylinder are arranged on two rotary joints and connected with a hydraulic station; a control rod is also connected between the gun tube and the base, and the hydraulic hoses of the hydraulic pipeline connection structure of the hydraulic mud gun are arranged on the rotary joints and connected with the hydraulic station. Bending damage of the hydraulic hose is avoided by rotation of the rotary joints, and the overall mechanism can operate safely and reliably.

The invention discloses a self-moving type obstacle rod for the flexibility training of soccer players. A training base is included, conveying lines are uniformly installed at one end of the trainingbase, one ends of the conveying lines are connected with a control box, a motor installing plate is installed on the part, corresponding to the training base, of one sides of the conveying lines, thetop of the motor installing plate is fixedly connected with a driving motor, and a conveying seat is installed at one end of the driving motor. The self-moving type obstacle rod has the advantages that the structure is scientific and reasonable, the use is safe and convenient, an alarming lamp which is installed on an alarming lamp installing seat is operated to illuminate light if a soccer playertouches a touch switch on the alarming seat, light is emitted through a sanded transparent plate so that the soccer player can be alarmed when the soccer player is trained, a rebounding seat which isbent by touching can be restored through a fixing soft column, a rubber rebounding soft column and a restoring spring which are arranged in a rebounding seat, and the damage of the rebounding seat caused by the long-term touching performed by the soccer player can be avoided.