817results about How to "Avoid friction" patented technology

A proximity sensor switch-controlled meter and lamp switch system installed in a motor vehicle that can be a motorcycle or car is disclosed to include a meter having a micro-controller unit (MCU) and an electronic display device, a lamp switch unit installed in one handlebar (or the motorcycle) or steering wheel (of the car), and proximity sensor switches respectively mounted in the meter and the lamp switch unit for controlling the micro-controller unit (MCU) to control the display mode of an electronic display device of the meter or to switch on/off the headlamp or left/right turn signal light of the motor vehicle when the motorcycle rider or car driver touches the meter or the lamp switch unit with a finger.

A venetian blind provided in double glazing unit, which is mounted in a space defined by two sheets of glass, side frames, a top frame and a bottom frame, the venetian blind comprising a blind body composed of a counterweight, a long axis and a plurality of leaves, a driving unit, and two magnets, one of which being fixed to said sliding block and the other one being located outside the double glazing unit. The venetian blind could be lifted and deflect by the linear movement or rotation of the two magnets, one of which is inside the double glazing unit and the other one is outside the double glazing unit in the case that the double glazing unit is completely sealed. The venetian blind of the present invention is simple in structure and convenient for operating.

The invention relates to a high-efficiency combined type domestic garbage crusher, which belongs to the technical field of domestic garbage crushing and comprises a feed hole, a crushing system, a discharge system and a transmission system, wherein the crushing system comprises dual knife rolls, a moving knife group, a static knife group and a knife adjusting device; the discharge system comprises a left screen, a right screen and two discharge holes; and the transmission system comprises a motor and a synchronous gear group, and the synchronous gear group ensures the synchronous running of the dual knife rolls. The left knife roll and the right knife roll are arranged side by side in parallel, a certain gap is reserved between the two knife rolls, and the two knife rolls are connected by the synchronous gear group and run in opposite directions; and the knife rolls are provided with rotating moving knives, the bottoms of the knife rolls are provided with bottom blocks, the bottom blocks are provided with bottom static knives, and simultaneously a frame is provided with a side static knife. Firstly, domestic garbage is crushed in the gap between the two knife rolls, is crushed at the position of the bottom knives after being compressed, then passes through the left screen and the right screen and is respectively discharged from the left discharge hole and the right discharge hole; and the side static knife can crush the garbage with bigger size again. The invention has the advantages of large treatment capacity, high crushing efficiency and low energy consumption.

The invention relates to the technical field of civil engineering, in particular to a damper and a manufacturing method thereof. A high-damping rubber fluid viscoelastic damper comprises a steel plate layer and a fluid viscoelastic material layer, wherein the steel plate layer comprises a middle steel plate and side steel plates arranged at two sides of the middle steel plate, the fluid viscoelastic material layer is arranged between the steel plate layer and the side steel plates, and the fluid viscoelastic material layer is the high-damping rubber fluid viscoelastic material layer made of high-damping rubber fluid viscoelastic material. Due to the adoption of the technical scheme, the invention has the following advantages: the vibration energy can be absorbed effectively by the deformation of the high-damping rubber fluid viscoelastic material, a hysteresis ring is full, and the fatigue resistance is good; and compared with the traditional fluid viscoelastic damper, the energy consumption property has stronger nonlinearity, and the energy consumption property is good under the condition of extremely small displacement and extremely low speed.

The invention relates to a water jet driving spray-head with an elevation angle automatic-adjustment function, belonging to key equipment for a water- saving irrigation and sprinkling irrigation system and being suitable for solving the problem that the jet range automatically changes when the spray-head rotates. The water jet driving spray-head comprises a mounting riser, a guide rail disc, a spray-head rotator, a spray-head elbow, an elevation angle adjusting mechanism, a spray pipe, a jet element body and a guide rod, wherein a rail is arranged at the periphery of the guide rail disc, and the guide rail is set according to the change rule of the jet range; the elevation angle adjusting mechanism consists of an internal spherical surface joint, an outer sleeve, an internal spherical surface joint and a rubber ring; and when the spray head works, the spray pipe rotates to drive the guide rod to rotate together, the guide rod extends into one end of the guide rail and travels along the guide rail, the guide rail moves up and down due to periodic vertical change of the guide rail, the spray pipe moves up and down while horizontally rotating so as to drive the internal spherical surface joint to rotate along the radian of the spherical surface in an up-down angle range, and therefore the elevation angle of the spray-head can be automatically adjusted.

The invention discloses a pressing module for testing drawing force of a keycap and a test machine for the drawing force of the keycap. The pressing module comprises a pressing board, a pressing board cylinder, and a pressing board driver, which are connected in sequence from bottom to top, wherein the pressing board is used for pressing a keyboard; the pressing board cylinder is used for driving the pressing board to move up and down in a vertical direction; and the pressing board driver is used for driving the pressing board cylinder and the pressing board together to move in a Y-axial direction in a keyboard plane. The test machine for the drawing force of the keycap comprises: a keyboard placing device for placing and inputting a to-be-measured keyboard; a pressing module for testing drawing force of the keycap for pressing the keyboard, a drawing force measuring head module for measuring the drawing force of the pressed keycap in the keyboard; a telescoping module for hanging the measuring head module and performing interval adjustment; a substrate for fixing the telescoping module; and a driving device for driving the substrate to move along the X-axial, Y-axial, and Z-axial directions. The test machine is high in detection rate, low in misjudgement rate, good in versatility, and low in detection cost, and doesn't generate damage to a good keycap.

The invention discloses a hydraulic pulp kneader, including the trough solid whose bottom has pulp kneader with corkscrew leaf set vertically, the driving end of pulp kneader is connected to the driving device below the trough solid, and the bottom of trough solid of the pulp kneader driving end is saddlebacked, making the leaf of pulp kneader get away from the bottom of trough solid, avoiding friction between the trough solid and pulp kneader completely, decides the route of whole vorticity circulation and local vorticity circulation formed in the trough solid is lengthed, so that the times of collision is increased and the waste paper is scattered to be the single fiber and it won't be cut off, also, all kinds of nonfiber mixture are kept wholly, it has decreased the energy cost and increased the quality of paper pulp.

The invention relates to a lamp fixing device capable of adjusting an illumination angle and a lamp. The lamp fixing device comprises a fixing seat, a first adjusting disc and a second adjusting disc, wherein the fixing seat is used for connecting a lamp holder; the first adjusting disc is arranged on the fixing seat and is provided with a first serrated face; and the second adjusting disc is provided with a second serrated face. Teeth capable of coinciding with one another to lock the lamp at different illumination angles are arranged on the first and second serrated faces; an adjusting bolt sequentially passes through the second adjusting disc, the first adjusting disc and the fixing seat; a nut is arranged at one end of the adjusting bolt, which runs through the fixing seat; a gap is reserved between the nut and the fixing seat; and a spring used for jacking the fixing seat and the first adjusting disc and making the first serrated face fitted with the second serrated face is arranged at the gap. The lamp fixing device can conveniently adjust the illumination angle of the lamp holder with a single hand and also can reliably adjust the illumination angle when the fixing seat is connected with a relatively heavy lamp holder.

The invention relates to a multifunctional wheelchair for handicapped persons, which consists of a vehicle frame, a chair, a vehicle wheel group, a wheelchair motor group and a power supply, wherein the chair is arranged on the vehicle frame; the lower part of the vehicle frame is provided with the vehicle wheel group; the machine frame is provided with the wheelchair motor group and the power supply for driving the vehicle wheel group. The vehicle frame consists of a horizontal base and a guide rail bracket which is vertically and fixedly arranged on the base; the front side of the guide rail bracket is provided with a suspension arm bracket which is driven to lift by a first linear motor fixedly arranged on the base and operates under the guidance of the guide rail bracket; a chair frame body is suspended under the suspension arm bracket through a rotating shaft; and the lower part of the chair frame body is provided with a turnover seat plate. The wheelchair of the invention is developed completely according to human body biomechanic properties and ergonomic theories and scientifically designed through finite element simulation analysis, is novel in structure, stable in operation, safe and reliable, simple in operation, convenient in use, overall in function and wide in application rage, can effectively the quality of life of the handicapped persons and is a highly creative and humane multifunctional wheelchair for the handicapped persons.

The invention provides a flexible driving apparatus for an all-terrain-matched linkage tracking photovoltaic bracket. The flexible driving apparatus comprises a reduction gear chain wheel, stand columns for supporting and rotating solar cell panels, and main beams moving on the corresponding stand columns, wherein purlines are arranged on the main beams for realizing power transmission for each row of solar cell panel array; the tail end of a former purline is connected with the front end of a next purline through a synchronous cable rope by a pulley A in a guiding connection manner so as to realize the series connection of the heads and the tails of the purlines; the reduction gear chain wheel drives a transmission chain to move in a reciprocating manner; two dragging cable ropes are connected with the two ends of the transmission chain respectively; the other ends of the two dragging cable ropes are connected with the synchronous cable rope through two pulleys B; and each of the two pulleys B is connected with a balance weight part separately for keeping the automatic compensation tensioning force of the transmission chain and the dragging cable ropes. The flexible driving apparatus is simple in structure, easy to mount, and capable of solving the problems of high requirement on land leveling standard and impossibility of being mounted and used in barren mountains and steep slopes with quite severe terrains.

The invention discloses a driven type lower limb motion force assisting exoskeleton device. A knee joint force assisting mechanism is included and comprises two knee joint force assisting assemblies,knee joint force assisting assembly thigh connecting discs and shank connecting discs. The thigh connecting discs are provided with first protrusions, and the shank connecting discs are provided withsecond protrusions. A plurality of torsional springs are further included and sleeve the first protrusions and (or) the second protrusions. First limiting protrusions and (or) second limiting protrusions are further included. One ends of the torsional springs serve as fixed ends to be fixed to the thigh connecting discs and (or) the shank connecting discs, the other ends serve as movable ends to abut against the first limiting protrusions and (or) the second limiting protrusions when the relative rotation angle of the thigh connecting discs and the shank connecting discs reaches the set value.By means of the driven type lower limb motion force assisting exoskeleton device, the purposes that assisted force is not provided during walking on the level road, and assisted force is only provided during mountain climbing, stair ascending and descending and other large-angle motions are achieved.

The invention relates to the technical field of an intelligent sweeping machine, in particular to a mopping and sweeping integrated sweeping machine with a self-cleaning function and a sewage recoveryfunction. Th machine comprises an upper cover, a water pump, a printed circuit board, a display screen, a fan, a dust box, a front touch mechanism, a lower cover base, a battery, a UV lamp assembly,a middle sweep brush assembly, a universal wheel, a side brush, left and right wheel assemblies, a lifting gear box, a roller, a sewage recovery tank, a roller bracket, a roller gear box, a water purifying tank and a medium sweep gear box; the water pump, the fan, the dust box, the battery and the UV lamp assembly are mounted on the base of the lower cover, the universal wheel is installed in front of the lower cover base, the left and right wheel assemblies are respectively mounted on the left and right sides of the lower cover base of the sweeping machine, and the roller is mounted on the roller bracket. The machine solves granular waste, hair, dust and sewage generated by sweeping and mopping the ground at one time, recycles the garbage, the hair, the dust and the sewage into the relevant dust box and a sewage recycle tank, and improves the product practicality.

A method and apparatus for scoring thin glass for the purpose of score and break separation as well as an accordingly prepared scored thin glass are provided. The scoring tool is pressed onto the thin glass and drawn along the scoring line with an adjusted scoring contact pressure force as a vertical scoring force component. This permits to production of prescored ultrathin glass of Knoop hardness from 350 to 650 with a score depth from 1/20 to ⅘ of the material thickness.

The invention discloses a spreading type self-furling memory alloy unlocking device used for a spacecraft, which consists of an arch locking wire subassembly (1), a stop (2), a lock body (3), a compression spring (4), a lifting arm (8), a connecting rod (9) and a releasing device; the arch bottom of the camber locking wire subassembly (1) is fixed at the front end of the lock body (3), the stop (2) is arranged on the arch locking wire subassembly (1), the connecting rod (9) inserts into an inner cavity at the front end of the lock body (3) after being connected with the stop (2); the connecting rod (9) passes through the rear end of the lock body (3) and is connected with the lifting arm (8), the lifting arm (8) tightly presses the compression spring (4) in the lock body (3); the releasing device is clamped at the rear end of the lock body (3) by a connecting part fixed on the lifting arm (8). The memory alloy locking wire provided by the invention adopts an arch spread mode, thus reducing the diameter and the length of the alloy wire, also the size is small and the unlocking time is short; furthermore, the unlocking purpose can be realized after stretching at any side, the reliability is high and the invention can be used for various spacecrafts.

The invention relates to a biaxial motion platform positioning and dynamic locus tracking control device and method and belongs to the technical field of multi-axis motion control. The method comprises steps of: setting a position coordinate according to a shape of an instruction motion locus and enabling two linear motors to motion when receiving the same instruction signal; determining the actually-measured position and actual speed of each linear motor; computing the position tracking error and the rotating speed deviation of each linear motor; performing variable-speed switching control if a positioning instruction is executed; in a dynamic locus tracking control process executed in real time, preliminarily designing an inversion sliding-mode control law, namely the control current of a permanent-magnetic synchronous linear motor, by selecting a Lyapunov function, correcting the control law in real time in combination with an adaptive method, and feeding the corrected control law, namely the corrected input current, back to the system. The device and the method may achieve smooth platform positioning speed transition, improve platform positioning precision, suppress disturbance existing in the platform system, and achieve precision tracking control of a dynamic locus.

The invention relates to a silk pole clamping device, which comprises a base, a support platform located on the base and fixed thereon, an article-holding platform fixed to the support platform, two ends of the article-holding platform are respectively hinged with a left clamp and a right clamp, ends of the left clamp and right clamps are respectively fixed with a left nut and a right nut with opposite rotating directions, the left and right nuts are connected to a silk pole through a screw, the silk pole is provided with a left screw and a right screw with opposite rotating directions, and the silk pole is rotatably connected to the support platform, the other end of the silk pole is rotary connected to a fixed support, the fixed support is fixed on the base. When the silk pole is rotated toward a certain direction, the two clamps close to each other, this is the clamping state; when the silk pole is rotated toward the other direction, the two clamps separate from each other, this is the loosening state. The invention has the simple structure, and can easily clamp or loosen without much labor.

The invention relates to a device for opening and/or closing drawers. The device has a pull-out guide (1) including a guide rail (2) fixed at a cabinet body and a displaceably supported sliding rail (3). The sliding rail (3) is fixed with a drawer with a panel and a retaining element (4) with an actuator (5), wherein the actuator (5) is linked with a drawing opening and/or closing mechanism. According to the invention, the actuator (5) is displaceably supported on the retaining element (4) and the retaining element (4) is fixed on different positions in order to adjust the distance between the panel and the cabinet body. In addition, the invention also provides a method for correcting a panel gap by means of such a device so as to adjust the panel gap by a simple method.

The invention provides a tripod type constant velocity universal joint that can restrain generation of an excessive frictional force inside the joint because of the rotation phase angle of the inner joint member, thereby suppressing vibration and achieving higher rotation durability. The tripod type constant velocity universal joint includes an outer roller rotatably located inside the roller guide section of the outer joint member, and an inner roller spherically fitted to the trunnion of the inner joint member so as to be pivotally rotatable, and to support the outer roller permitting relative rotation and relative axial movement, so that when a torque is applied with the outer joint member and the inner joint member oriented with an operating angle θ, a facet of the outer roller inclined along with the rotation of the inner joint member is sustained by the track groove bottom portion formed in a flat plane.

A pump apparatus is provided which comprises a displacement pump and a ceramic valve construction formed of a ceramic rotor and a ceramic stator having flat surfaces which are positioned in sealing relationship. The displacement pump comprises a reciprocating piston within a housing having an interior wall spaced apart from the piston. The position of the piston and the position of the rotor are controlled to effect desired fluid flow through the stator.

The invention provides a core spinning device and a new-structure core spinning method for full wrapping of a macro core. According to the core spinning device, an auxiliary core wrapping device is additionally arranged between a front roller jaw and a yarn guide hook of a common ring spinning frame; and the auxiliary core wrapping device comprises a first yarn channel used for conveying an outer wrapping material, a second yarn channel used for conveying a core layer material and a wrapping point used for wrapping and converging. In a spinning process, short fiber strands and filaments form a y-shaped twisting structure with the filaments in a straightened state, the filaments are kept in the straightened state at the wrapping point, and the short fiber strands wrap outer layers of the filaments at the wrapping point by means of twisting rotation of the filaments and partial twist of the short fiber strands, so that core spun yarn with a good wrapping effect is formed, and the problem of core exposure of the ring-spun core spun yarn is solved. According to the invention, through coating of nanofibers, the hairiness of resultant yarn is completely eliminated, and the performance of the resultant yarn is comprehensively improved. The operation is convenient, the transformation cost is low, and the performance of the ring-spun core spun yarn is obviously improved.

The invention relates to a refrigerating engine oil composition and an application of the refrigerating engine oil composition. One aim of the invention is to provide a refrigerating engine oil composition which has good compatibility with hydrocarbon refrigerants, is high in flash point and low in viscosity, can be used for furthest increasing the COP (coefficient of performance) value of a compressor, and has excellent thermal stability and relatively low cost. The other aim of the invention is to provide an application of the refrigerating engine oil composition used as a lubricating agent in a refrigeration compressor which uses isobutane, propane or a mixture of isobutane and propane as a refrigerant. The refrigerating engine oil composition consists of the following components in percentage by weight: 96.5-99.5% of base oil and 0.5-3.5% of a lubricating oil additive, wherein by taking the weight of the base oil as 100%, the base oil comprises the following components in percentage by weight: 20-79% of alkylated aromatic hydrocarbon and 21-80% of an alkane mixture; by taking the total weight of the composition as 100%, the lubricating oil additive comprises the following components in percentage by weight: not more than 3% of an extreme pressure anti-wear additive, 0-3% of an antioxidant, 0-3% of the lubricating agent, 0-0.8% of a metal deactivating agent and 0-0.02% of an anti-foaming agent.

The invention discloses an automatic rolling ball grouping mechanism which comprises a base (1), a cam (2), a transmission rod (3), a vertical plate (4), a swing rod (5), a pushing block (6), a material barrel (8) and a rotary plate (9), wherein the cam (2) is rotatably connected on the base (1); a first motor for driving the cam (2) to rotate is arranged on the base (1); the middle part of the transmission rod (3) is rotatably connected on the base (1) through a first hinged point (10); one end of the transmission rod (3) abuts against the external contour of the cam (2); the other end of the transmission rod (3) is provided with a first arc-shaped rack (23); and a first tension spring (14), which is used for tensioning the transmission rod (3) to ensure that one end of the transmission rod (3) always abuts against the external contour of the cam (2), is arranged between the transmission rod (3) and the base (1). The invention provides the automatic rolling ball grouping mechanism, and the mechanism is accurate in checking rolling balls, and small in labor intensity of an operator.

The invention provides a dual-motor optical element axial adjustment device, relates to the technical field of deep ultraviolet projection photoetching objective lens structural design and adjustment, and aims to solve the problems that an existing optical element aligning device is provided with a large number of actuators and is complex in mechanism and high in processing difficulty. The dual-motor optical element axial adjustment device comprises four capacitive sensors, an optical frame, eight connection screws, a smooth driving block and two piezoelectric actuators. The four capacitive sensors are placed parallel to the upper surface of the optical frame, are evenly distributed along the upper edge of the optical frame, and correspond to the midpoints of all right-angle sides of the smooth driving block. The optical frame and the smooth driving block are fixed through the connection screws. The two piezoelectric actuators are arranged at the diagonal positions of the smooth driving block respectively. An optical element is arranged in the optical frame. By means of the dual-motor optical element axial adjustment device, rapid and precise adjustment is realized, and meanwhile, the problems of friction, lubrication and hysteresis of a mechanical hinge are avoided; the smooth driving block acts on the optical frame so that damage to the surface form of the optical element by adjustment force can be effectively lowered; the structure is simple, a small number of motors are needed, and processing cost is low.

The invention relates to a multi-axial warp knitting machine (1), comprising a yarn laying device (6) which is moved through a first driving device (22), a yarn storing device and a yarn depositing device (11) arranged between the yarn storing device and the yarn laying device (6), wherein, the yarn laying device is provided with at least one yarn layer on or inside a conveying device through which the yarn layer can be conveyed to a solidifying device. The invention provides multi-axial warp knitting machine with high productivity. Therefore, the yarn depositing device (11) is provided with a yarn storing section (26) whose length is changed through a second driving device (15), wherein, the second driving device (15) is connected with a control device (23) which controls the second driving device (15) according to the movement of the yarn laying device (6).