38results about How to "Uniform and reliable force" patented technology

The invention discloses a telecom intelligent card for realizing a near field communication (NFC) function. The telecom intelligent card comprises a card matrix, a subscriber identity module (SIM) and an antenna layer, wherein an NFC chip is embedded in the SIM; the SIM is arranged on the card matrix and provided with two reserved contacts and six functional contacts; the antenna layer comprises a coil part and a card contacting part; and the card contacting part is adhered to the card matrix. The telecom intelligent card is characterized in that: an area encircled by the six functional contacts is a stressed area in which newly-added contacts are arranged; the NFC chip receives and transmits a radio-frequency signal through the two newly-added contacts; and the coil part, a connecting part and the card contacting part form a whole. The telecom intelligent card realizes the SIM card-based NFC function and solves the problems that the reserved contacts of the SIM are occupied and poor contact exists between an antenna contact and a contact corresponding to the SIM by adding the NFC chip and newly adding contacts in the stressed area.

The invention discloses an elastic washer, which comprises a circular elastic washer body (1), wherein the center of circle of the elastic washer body (1) is provided with a mounting shaft hole (2), the elastic washer body (1) is provided with a plurality of elastic reeds (3) in the mounting shaft hole (2), the elastic reeds (3) are tilted towards one side of the elastic washer body (1), and the elastic reeds (3) are centrally symmetrical relative to the center of circle of the elastic washer body (1). The elastic washer has the advantages that the firmness of bolt connection is improved, the connection is reliable, the elasticity is high, the structure is simple, and the processing is convenient.

A stretching device has a housing; a first clamping member attached to a first portion of the housing; a second clamping member attached to a second portion of the housing; wherein the first clamping member has a movable pivot member such that an angle of contact between the first clamping member and a workpiece to be gripped remains constant regardless of the workpiece's thickness. A stretcher assembly has a first stretcher having a first housing having a first clamping member and a second clamping member opposed to each other; and a second stretcher having a second housing having a third clamping member and a fourth clamping member opposed to each other; and a workpiece support member interposed between the first stretcher and the second stretcher, wherein the first and third clamping members each includes a movable pivot joint such that an angle of contact of the first and third members with a workpiece to be gripped remains constant regardless of a thickness of the workpiece. The gripping force remains proportional to a stretching force.

The invention relates to a soil preparation furrowing device for forest planting of the forest industry, and relates to a furrowing device which is particularly suitable for the artificial forest planting in a large-area fish-scale pit way on low-pitched land in arid and semi-arid planting areas. The fish-scale pit furrowing device mainly comprises a plough body (1), a deep-digging cutter (2), a side-wall cutter (3), a measure and control land wheel (10), a main frame (4), a three-point suspension rack (7), an electric control system and a hydraulic control system, wherein the electric control system transmits signals about the furrowing size of each fish-scale pit and a distance size between every two adjacent fish-scale pits on the ground to an electric control box system through an electric sensing plate on the measure and control land wheel (10) to further control the hydraulic control system, so that the plough body (1) and the side-wall cutter (3) on a rear frame act from top to bottom according to the control requirements. The fish-scale pit furrowing device has advantages that the fish scale pit furrowing device can be connected with any tractor with 120horsepower or more in China, the overall layout of the structure is reasonable, the hydraulic system is simple, and convenience and reliability in transmission can be realized; and the distance measuring precision of the fish-scale pit is high, and the size of the pit can be adjusted at any time.

The invention discloses an electrode fixing device of a plate oxygen sensor, comprising a chip assembly and a wire harness connecting assembly, wherein the chip assembly comprises a chip; one end of the chip extends into the wire harness connecting assembly; the wire harness connecting assembly comprises electrode terminals arranged at two outer side surfaces of the chip; a ceramic clamping piece is arranged at an outer ring of each electrode terminal; a spring clamp is arranged at an outer ring of the ceramic clamping piece; a spring clamp protecting sheath is arranged outside the spring clamp; the spring clamp is a square cavity; outer side surfaces of two opposite sides of the square cavity are respectively provided with a ladder-shaped raised elastic piece; the other sides of the square cavity are respectively provided with a gap; an inner side surface of the square cavity of the spring clamp is adhered to the periphery of the ceramic clamping piece; inner side surfaces of two opposite sides of the spring clamp provided with the elastic pieces are vertical to a direction in which the electrode terminals and the chip are adhered; the spring clamp protecting sheath is cylindrical; and the elastic piece of the spring clamp is clamped by the cylindrical inner wall of the spring clamp protecting sheath. The spring clamp is adhered with the appearance of the ceramic clamping piece; an elastic force of the spring clamp is applied to the direction in which the electrode terminals fixedly clamped by the ceramic clamping piece and the chip are adhered, so that the ceramic clamping piece and the electrodes have uniform and reliable stresses.

The invention discloses a safe and labor-saving distribution line stay wire bending formation structure. The structure comprises vertical supports and a horizontal support, wherein the horizontal support is provided with a stay wire upper holding structure, the vertical supports are provided with a stay wire upper holding structure and a stay wire bending positioning structure, the stay wire bending positioning structure comprises a fixation shaft and a stay wire positioning sleeve, the two ends of a stay wire respectively cooperate with the stay wire lower holding structure and the stay wire upper holding structure, the stay wire upper holding structure is connected with a slide block, the vertical supports are provided with vertical guide rails, and the slide block cooperates with grooves in the vertical guide rails; the stay wire lower holding structure, the stay wire upper holding structure each comprise a fixation sleeve and a hollow shaft, the fixation sleeves are provided with conical holes, the hollow shafts are provided with outer conical surfaces and inner cylindrical holes, and the hollow shafts are provided with multiple opening grooves which are open along axial small ends on cones; the outer conical surfaces of the hollow shafts and the small ends of the conical holes are close to the stay wire bending positioning structure; and a lower stay wire compression structure and an upper stay wire compression structure are arranged between the stay wire lower holding structure and the stay wire bending positioning structure.

The invention discloses a free embossing device for a fabric. The free embossing device comprises a frame, an embossing mechanism and a fabric conveying mechanism. The embossing mechanism comprises an upper embossing assembly and a lower embossing assembly. The lower embossing assembly comprises a stepping motor, a motor fixing plate, an X axis screw, an X axis guide rail, a sliding plate, a first lower mold and a second low mold. The upper embossing assembly comprises an upper mold and an embossing cylinder. The bottom surface of the upper mold is provided with first incised patterns and first raised patterns. The top surface of the first lower mold is provided with second incised patterns and second raised patterns. The top surface of the second lower mold is provided with third incised patterns. A heating structure is arranged in the upper mold. The fabric conveying mechanism comprises a discharge roller group, a material collection roller and a material collection motor. A cooling mechanism is arranged between the material collection roller and the upper mold. The free embossing device has a compact structure, is easy to use, can emboss different patterns and realizes good embossing quality and efficiency.

The invention discloses a tower stay wire bending device suitable for large bending force. The tower stay wire bending device comprises a vertical support and a horizontal support. The horizontal support is provided with a stay wire lower clamp structure. The vertical support is provided with a stay wire upper clamp structure and a stay wire bending and positioning structure. The stay wire bending and positioning structure comprises a fixing shaft and a stay wire positioning sleeve. One end of a stay wire is matched with the stay wire lower clamp structure, and the other end is matched with the stay wire upper clamp structure. The stay wire upper clamp structure is connected with a slide block. The vertical support is provided with vertical guide rails. The slide block is matched with the grooves in the vertical guide rails. The stay wire lower clamp structure and the stay wire upper clamp structure comprise a fixing sleeve and a hollow shaft. The fixing sleeve is provided with an axial conical hole. The hollow shaft is provided with an external conical surface and an internal cylindrical hole which are matched with the conical hole. The hollow shaft is provided with multiple open slots which are open along the axial small end on the cone. The external conical surface of the hollow shaft and the small end of the conical hole are close to the stay wire bending and positioning structure. The vertical support is provided with an upper limiting structure between the vertical guide rails.

The invention relates to the technical field of sewing, in particular to a sewing machine pneumatic lifting electronic mop mechanism and a control method thereof. The mechanism is simple in structure,components are simplified, the biasing force exerted on the mechanism is reduced, the service life of a double-acting cylinder and a linear guide assembly is favorably prolonged, needle loss during sewing can be prevented, the mop wheel lifting opportunity can be controlled, and the mop jam between the mop wheel and a presser foot is better relieved. The mechanism comprises an integrated pneumatic lifting and pressing assembly, the integrated pneumatic lifting and pressing assembly and a vertical guiding adjustment assembly are fixed to a main body fixing plate by screw connection, an electronic mop execution assembly is fixedly connected to a connecting support of the vertical guiding adjustment assembly, the transmitting end of a photoelectric detector is arranged between a mop wheel assembly in an electronic mop execution assembly and the sewing machine presser foot, and the receiving end of the photoelectric detector is disposed on the lower portion of the opposite sewing machinehead.

The invention discloses an electroslag furnace high-precision suspension frame weighing device. The weighing device comprises a bottom frame playing a supporting role, wherein three weighing sensors are arranged on the bottom frame, the three weighing sensors are not located on the same straight line, a suspension frame playing a role in connection is arranged above the weighing sensor, and threesupporting legs are further arranged above the suspension frame. The weighing device is advantaged in that the three weighing sensors which are not located on the same straight line are used for weighing, and thereby the installation and manufacturing requirements of equipment are reduced, the three sensors are enabled to be stressed uniformly and reliably through employing the principle of threepoints and one surface, and high-precision weight data is provided for smelting control.

The invention discloses a prestressed carbon fiber-reinforced plastic plate anchorage device and a manufacturing method thereof. The device comprises an upper steel plate and a lower steel plate and the upper and lower steel plates are used for clamping a plate. The manufacturing method comprises that multiple wedge-shaped grooves are arranged between the upper and lower steel plates, the surfaces of the wedge-shaped grooves are uniformly coated with a release agent, the grooves are filled with epoxy resin, the upper and lower steel plates are fastened through anchor bolts, the plate is slowly inserted into one end of the two steel plates from the other end along the surface groove, and after the epoxy resin is completely cured, the plate is anchored to a concrete member to be reinforced through anchor bolts. The prestressed carbon fiber-reinforced plastic plate anchorage device is prepared through the above method. The anchorage device has a simple design, reasonable force transmission, good reliability and good stability. The anchorage device has high efficiency anchoring performances. The plate does not slide or the anchorage device inner plate is not damaged even if the carbon fiber plate can be stretched until cracking.

The invention discloses a separating anti-drop moving contact for a molded case circuit breaker. The separating anti-drop moving contact comprises a connecting base. A mounting through groove is formed on the connecting base. A moving contact rod is arranged in the mounting through groove. The moving contact rod is hinged in the mounting through groove. The front end of the moving contact rod extends out of the mounting through groove and is provided with a moving contact. A slide rod is hinged on the rear end of the moving contact rod. The slide rod is hinged with the moving contact rod through a connecting pin. A travel groove is formed on the slide rod. A push rod is arranged on the travel groove in a penetrating way. The push rod is rotatably arranged in an accommodating cavity. An abutting spring sleeves on the slide rod. The abutting spring abuts between the push rod and the moving contact rod. The inclined angle between the connecting line of the connecting hole and the rotatingport and the horizontal plane is greater than the inclined angle between the connecting line of the swing groove and the connecting hole and the horizontal plane. The structure is simple, the movingcontact can be separated by repulsion under the short-circuit current and the situation that the moving contact falls back because of reduction of the electric repulsion due to increasing separating distance along with driving of the mechanism does not occur.

The invention discloses a damper of a composite structure. The damper comprises a shell and a cavity which is arranged in the shell and wholly cylindrical, an oil inlet and an oil outlet are formed inthe two ends of the shell, damping oil is led in, a fixed plate and a first magnet are fixed to the two ends of the inner side of the cavity, center holes are formed in the fixed plate and the firstmagnet, the middle of the cavity is provided with a moving component, the moving component comprises a second fixed magnet and a push rod, the second magnet and the first magnet are the same in appearance and opposite in homopolarity, the push rod can do transverse movement in the center hole of the first magnet, a spring is arranged on the side, opposite to the first magnet, of the second magnet,the two ends of the spring are connected with the fixed plate and the second magnet, the shell is further provided with an oil path penetrating the left side and the right side of the movable range of the second magnet. An existing damper is improved, adjustable damping is achieved, the damping action manner that the push rod can be replaced to change the gap is achieved, damping is reliable andstable, and the wide application prospect is achieved.

The invention discloses a steel bell and spigot pipeline limiting joint and an operation method thereof. The pipeline limiting joint comprises a bell mouth ring, an opening clamping ring, a spigot ring, a screw rod, a hexagon nut, a U-shaped nut and a rubber ring. The opening clamping ring is adjusted to be enlarged and shrunk through the screw rod and the U-shaped nut, and is locked through the hexagon nut; Relative displacement between the bell mouth ring and the spigot ring is limited through the shrunk opening ring, and the opening clamping ring is in a shearing force state, so that the joint bears tension. The joint is suitable for large-caliber and small-caliber pipeline limiting joints, stress is uniform and reliable, installation is convenient, and the installation efficiency is improved.

The invention relates to an L-shaped oiling machine capable of leading out an oil pipe from the lower part of the machine. The oiling machine comprises an oiling machine body (1), wherein pipe outlet grooves (1.1) are formed in the lower part of the oiling machine body (1); an oil pipe (2) in the oiling machine body (1) is led out of the oiling machine body (1) through the outlet pipe grooves (1.1); the oil pipe (2) in the oiling machine body (1) is hung to a movable pulley (3.1) hung on a movable pulley support (3); the movable pulley support (3) is hung on a rubber tube balancer (4). The L-shaped oiling machine with the downtake pipe is convenient to use, unlikely to wear the oil pipe, and more attractive in appearance.