41results about How to "Wide range of rotation angles" patented technology

A remote control assembly comprising a signal light and a spotlight comprises a lamp receptacle, a combined light, two driving device for the combined light, a base stand, circuit board and suction disk. The combined light includes signal light and spotlight, lamp shields, reflector and supporting shafts. When assembled, it is rotatably mounted in the lamp receptacle. One of driving device can make the combined light rotate upward and downward in the range of 250°, and can provide large visual angle in the evening or at night, even beyond 90°, and the other driving device can make the combined light rotate horizontally in the wide range of 360°. In addition, it (the combined light) has good performance of weather proof and super bright illumination. In emergency condition, its flashing light can be seen from several kilometers away. It is suitable for use on deck, galley, trailers and utility vehicles.

A ship loader comprises a ship loader body and a ship loader tripper car. The ship loader body is connected with the ship loader tripper car through a link rod, the ship loader body comprises a large arm, the large arm is connected with a walking mechanism through a rotary table, a swinging mechanism and a gantry in sequence, the large arm is connected with one end of a telescopic arm, the other end of the telescopic arm is connected with a sliding barrel mechanism, a balance weight is arranged at the root of the large arm, a pitching hydraulic system is arranged between the rotary table and the large arm, the telescopic arm is connected with a telescopic arm driving system, the large arm is connected with a boom conveyor system, and a cab is arranged at the top of the large arm. The ship loader tripper car comprises a tripper car structure, the tripper car structure comprises a tripper car conveying and unloading system and an electrical room, and a cable reel and a spray reel are connected on the lower portion of the electrical room. The ship loader is simple in structure, longest in conveying distance, stable and reliable in work, low in energy consumption, low in noise, easy to operate, large in telescopic range and larger in rotating angle range, and production efficiency is greatly improved.

The invention discloses an exerciser beneficial for ankle pump exercises of a patient with foot drop. The exerciser comprises a base which is horizontally arranged, wherein one end, in a length direction, of the base is provided with a supporting plate capable of rotating; a slide rail is arranged in a length direction of the supporting plate; a connecting plate is connected onto the slide rail in a sliding manner; an exercising frame is further arranged between the base and the supporting plate; one end, in a length direction, of the exercising frame is connected with the connecting plate; the other end of the exercising frame is rotatably connected with the base; one end, away from the base, of the supporting plate is provided with an operating rod used for the patient to operate; and a fixator for fixing feet of the patient is further arranged on the exercising frame. The exerciser can effectively prevent formation of thrombus, which causes embolisms of the heart, the brain and lungs, of lower extremity veins from forming, and is further beneficial for recovering limb functions of the lower limbs, so that the patient with foot drop can conveniently carry out rehabilitation training by himself or herself, and can actively participate in own limb rehabilitation of him or her, and therefore, the exerciser is high in comfort level, the cost is reduced, and the working efficiency is improved.

The invention discloses a reconfigurable redundant mechanical arm based on rope driving, and belongs to the field of robot research and engineering. The redundant mechanical arm is composed of a plurality of joint units. The joint unit mainly comprises a first joint, a second joint, a third joint, a telescopic trunnion, a bidirectional electric push rod, an external thread type bearing and a silica gel corrugated pipe with an embedded spring. The bidirectional electric push rod arranged in each joint is connected with the telescopic trunnion, the trunnion is fixed between the two joints through the external thread type bearing to form a single-degree-of-freedom rotating joint, and the silica gel corrugated pipe is wrapped on the single-degree-of-freedom rotating joint. According to the invention, the electric push rod is used for providing drive force to change the position of the trunnion and the equivalent trunnion height, and therefore reconstruction of a joint mechanism is achieved. When the trunnion is contracted, the gap between joints is reduced, and the rigidity and control precision of the whole redundant mechanical arm are improved; when the trunnion extends, the joint gap is increased, the rotation angle range of the redundant arm is enlarged, and a larger tail end operation space is achieved.

The invention discloses a lifting hinge structure. The lifting hinge structure comprises an upper sleeve, a lower sleeve, a connecting rod, a first hinge piece and a second hinge piece. A sealed sleeve bottom is arranged on the upper sleeve. An inner gear is arranged on the inner cylinder wall of the upper sleeve. A stepped hole is formed in the lower sleeve cylinder. A big hole and a small hole in the stepped hole are eccentrically arranged. The connecting rod comprises an abutting portion, a gear portion and a guide column which are fixedly connected into a whole from top to bottom. The guide column of the connecting rod is spirally connected into the small hole of the stepped hole in the lower sleeve and drives the first hinge piece to drive the upper sleeve on the first hinge piece to rotate. Due to the fact that the inner gear on the inner cylinder wall of the upper sleeve and the gear portion on the connecting rod are eccentrically arranged and internally engaged with each other, the gear portion on the connecting rod rotates to drive the connecting rod to spirally rotate up and down in the small hole of the lower sleeve, the abutting portion on the connecting rod abuts against the sleeve bottom of the upper sleeve, and the upper sleeve and the first hinge piece fixedly connected with the upper sleeve ascend and descend in the axial direction. By the adoption of the lifting hinge structure, the large-range angle rotation can be achieved, the structure is simple, and disassembly, assembly and operation are facilitated.

The invention relates to an all-purpose turning joint which is a furniture member and comprises a right connecting plate and a left connecting plate, each of the two connecting plates is provided with a matching bearing surface and a gear surface at one end, the two connecting plates can enlarge the rotation angle through a plurality of steps of connecting device, each step of connecting device comprises an upper gear form plate and a lower gear form plate, the two ends of the upper gear form plate and the lower gear form plate are all provided with a bearing surface and a gear surface, the corresponding upper gear form plate and the lower gear form plate are movably connected through a rotation shaft; when the two connecting plates are stressed by the rotating force from the respective gear faces, the rotating force is stably transferred through the engaged gear surface and the limiting effect between the neighboring rotation shafts, and thus, the rotation angle between the two connecting plates is adjustable within the range of the gear face. Each rotation connecting point is all designed to the connection with the connecting plate, the connecting device, a liner bushing, an elastic gasket through the rotation shaft, and thus, the rotation position of a hinge can stop at any angle. Compared with the existing art, the invention has the advantages that the range of the rotation angle is large, the rotation position can stop at any angle, the rotation is stable, noise-free and the bearing strength is large, etc.

The invention discloses a dish-washing machine dish placing rack, and relates to the technical field of dish-washing machines. The dish-washing machine dish placing rack comprises a bottom frame. Thebottom frame is provided with at least two base groups in parallel. Each base group comprises a left base and a right base which are opposite. Each base is internally provided with a holding groove. Two opposite holding grooves are internally rotatably provided with a bowl support. The bowl support is uniformly provided with a plurality of support teeth. To-be-cleaned tableware is placed between two adjacent support teeth. Each base is provided with a plurality of positioning holes at interval in range of 0-180 DEG. Support teeth on two ends of the bowl support can respectively slide into opposite positioning holes, and the support teeth are used to fix the bowl support at a certain angle. The invention also discloses a dish-washing machine. The dish placing rack can adapt to bowls in different depth and diameters, and inclination angles of tableware can be effectively adjusted, so as to realize maximization of the number of tableware washed in the same region, greatly save washing cost of users, and effectively improve washing effect of the dish-washing machine.

The object of the invention is a gas valve (10, 110) for a gas-operated cooking appliance, comprising a valve body (12, 112) with a plug receptacle opening. A plug (24, 124) is disposed rotatably in the plug receptacle opening and comprises an outer surface (80) that is designed at least partially from an elastic rubber material. According to the invention, the elastic rubber material is made up of a self-lubricating silicone. The plug (24, 124) can be made entirely of the elastic rubber material, at least in a partial area of the outer surface (80) up to an inner surface facing a hollow inner space (26).

The invention discloses a rotating shaft rotating angle limiting and adjusting mechanism. The rotating shaft rotating angle limiting and adjusting mechanism comprises a mechanism shaft, stop blocks, alimiting block, gears and worms, the two gears are arranged on the mechanism shaft in a penetrating mode and are in clearance fit with the mechanism shaft, the two worms are arranged on one side of the mechanism shaft and are correspondingly engaged with the two gears correspondingly, the two stop blocks are fixedly connected to the two gears correspondingly and rotate along with the gears, the limiting block is fixedly connected to the mechanism shaft and arranged between the two gears, two limiting arms which are arranged in a staggered mode are arranged on the limiting block, and the two stop blocks are located on a rotating path where the two limiting arms rotate around the axis of the mechanism shaft correspondingly. According to the rotating shaft rotating angle limiting and adjusting mechanism, position fixing of the stop blocks is achieved through worm and gear self-locking, the adjusting range is wide, use is flexible, the two stop blocks are arranged, the positions are independent, independent adjustment and control can be achieved, and the mechanism is reliable in operation and convenient to use.

The invention discloses a multi-freedom-degree air control joint. The multi-freedom-degree air control joint comprises a first mounting seat and a second mounting seat which are arranged oppositely. Multiple bendable telescopic bodies are arranged between the first mounting seat and the second mounting seat. The telescopic bodies are provided with cavities and openings capable of allowing gas to enter and be extracted out of the cavities. The opening ends of the telescopic bodies are connected with the first mounting seat, and the sealed ends of the telescopic bodies are connected with the second mounting seat. The structure of the multi-freedom-degree air control joint is simple, the rotating action, in multiple directions and angles, of a machine and precise control over the action directions and angles of the machine can be achieved, and stress buffer and safety protection can be effectively carried out. In addition, the invention discloses a multi-freedom-degree air control deviceand a mechanical arm.

The invention relates to a special-shaped brush hole hair-planting machine capable of rotating for planting hair. A shaft hole is formed at the center of the side surface of a box body (3), a claw type square shaft (4) is further mounted at the center of the side surface of the box body (3), four claws (5) are symmetrically arranged at one end, which is close to a servomotor (1), of the claw type square shaft (4), the four claws (5) are inserted and fixed on four corners on the inner wall of a square through hole at the center of a liner bushing (6), liner bushing shaft holes (10) are respectively formed in the four directions on the side surface of the liner bushing (6), a first rotating shaft (8) and a second rotating shaft (9) are respectively mounted in the two opposite liner bushing shaft holes (10) through bearings, and rotating blocks (7) are respectively mounted at the two ends of each of the first rotating shaft (8) and the second rotating shaft (9). The special-shaped brush hole hair-planting machine disclosed by the invention has the advantages of compact structure and high processing precision, and can be used for completing hair-planting actions against circular hair holes and special-shaped hair holes on one toothbrush, solving the defect that the traditional hair-planting machine can not perform special-shaped brush hole hair planting and improving the level of an existing bristle manufacturing process.

The invention relates to a composite spherical hinge. The hinge comprises a central column and a first layer hinge and a second layer hinge which are arranged on he central column, the first layer hinge is composed of a first sleeve tube, an inner fork and a first sliding column, the first sleeve tube is arranged in the middle section of the central column, the inner fork is connected with the first sleeve tube, the first sliding column is installed on the inner fork, the second layer hinge is composed of a second sleeve tube, an outer fork and a second sliding column, the second sleeve tube is arranged at the end of the central column, the outer fork is connected with the second sleeve tube, and the second sliding column is installed on the outer fork. The composite spherical hinge has the advantages that the six-degree-of-freedom independent rotation among three components can be synchronously achieved, the range of the rotation angle is wide, all rotation axes intersect at a fixingpoint all the time, the overall structure is simple, symmetric and compact, additional centrifugal inertial force and centrifugal inertial torque are not generated, the processing and manufacturing are convenient, and the composite spherical hinge is suitable for miniature manufacturing.

The invention discloses a mechanical limiting structure. The mechanical limiting structure is applied to industrial robot equipment, photoelectric precision tracking equipment, radar equipment and other large or relatively large equipment with a rotating shaft, a precision device, and high safety requirements and the like. The problem to be solved is that the large or relatively large equipment with the rotating shaft series need to have the mechanical limiting structure with good buffering effect and the shaft with wide range of rotating angles, but the shaft bears larger curving force vertical to the rotating axis due to nonsymmetrical wear-stress during the limiting buffering process. By means of the isomerization design of two buffering module mechanisms and the isomerization design oftwo ends of a collision block, the effect that the rotating shaft only bears the torsion load during the limiting buffering process is realized, and the safety and reliability of the system are improved on the basis of ensuring wider range of rotating angle of the rotating shaft of the mechanical limiting mechanism.

The invention provides a spring energy storage device for an on-load tap-changer, and relates to a spring energy storage device. The spring energy storage device aims to solve the problems that according to an existing over-dead-point type spring energy storage device, the rotation angle range of tension spring drive components is small, and therefore the reliability of the spring energy storage device is low. A second transmission shaft is installed on the lower portion of a side plate through a first bearing block. The second transmission shaft and a third transmission shaft are coaxially arranged. A transmission gear is installed on the second transmission shaft and located between the side plate and a switching support plate. The end face, facing a transmission shifting block, of the transmission gear is provided with a first shifting column and a second shifting column. The first shifting column and the second shifting column are integrated with the transmission gear. The second transmission shaft is fixedly sleeved with one end of a switching shifting block. A transmission column is horizontally and fixedly installed to the other end of the switching shifting block. The transmission column is sleeved with a transmission shaft sleeve and a rotating sleeve in sequence. One end of a tension spring is installed on the transmission shaft sleeve, and the other end of the tension spring is fixed through a fixing column. Two limiting shaft sleeves are located on the periphery of a limiting wheel. The spring energy storage device is used for the on-load tap-changer.

The invention provides a universal swing machining handpiece for a machine tool. The universal swing machining handpiece comprises a connecting structure used for being connected with the machine tooland a universal machining handpiece body arranged on the connecting structure, wherein the universal machining handpiece body comprises a universal mechanism and handpiece main bodies arranged on theuniversal mechanism; the universal mechanism comprises a first steering mechanism, a second moving mechanism and a third moving mechanism which can realize three-dimensional motion; and the first steering mechanism, the second moving mechanism and the third moving mechanism are adopted so that the machining handpiece can realize three-dimensional motion, in addition, through the designed liftingof the connecting structure and rotation of a precise indexing table, in match with rotation of rotating shaft joints, the rotating angle ranges of the handpiece main bodies can be greatly enlarged, universal rotation with practical significance is realized, and thus the device is higher in practicability and suitable for large-scale popularization.

The invention provides a voltage regulator, which is suitable for regulating common voltage in a liquid crystal display panel. The voltage regulator comprises a first potentiometer and a second potentiometer, wherein the first and second fixed ends of the first potentiometer are respectively two endpoints of one semicircle, and the first and second fixed ends of the second potentiometer are respectively two endpoints of another semicircle; and the second fixed end of the second potentiometer and the second fixed end of the first potentiometer are connected with a common node. The common voltage is regulated through the position change of the respective mobile end of the first potentiometer and the second potentiometer. According to the voltage regulator, the two potentiometers are symmetrically arranged, the null point of one potentiometer is connected with the null point of the other potentiometer, and the common voltage of the liquid crystal display panel is accurately regulated through the position change of the respective mobile end of the two potentiometers. Compared with the prior art, when the voltage regulator regulates the common voltage with the same variable quantity, the range of the rotation angle of a rotor contact is larger, and the regulation accuracy of the common voltage is increased.

The invention discloses a steel bar bending forming machining device. The steel bar bending forming machining device comprises a strip-shaped operation table which is fixed at a base, a positioning plate which is arranged on the strip-shaped operation table and is positioned on the rear side surface of the strip-shaped operation table in the width direction, a positioning shaft which is arranged on the strip-shaped operation table and is positioned at one end of the strip-shaped operation table in the length direction, as well as a rotating rod hinged to the positioning shaft, wherein the rotating rod is provided with a profiling shaft which is arranged at intervals with the positioning shaft, the positioning shaft is sleeved with a positioning shaft sleeve, the profiling shaft is sleevedwith a profiling shaft sleeve, and both the positioning shaft sleeve and the profiling shaft sleeve can rotate along with bending of the steel bar. In the technical scheme provided by the steel bar bending forming machining device, the rotating rod can rotate counterclockwise so as to form a containing channel between the positioning shaft sleeve and the positioning plate, the rotating rod can rotate clockwise so that a guide channel is formed between the positioning shaft sleeve and the profiling shaft sleeve, then the steel bar placed in the containing channel can be adjusted and fixed, thesteel bar is subjected to bending machining through guiding of the guide channel, and therefore the bending radian and the angle of the steel bar are conveniently and accurately controlled.

The invention relates to a microminiature bidirectional rotation driver based on a shape memory alloy wire. The microminiature bidirectional rotation driver comprises an upper side shell, a lower side shell, an input gear shaft, an output gear shaft, a first fixing terminal, a first double-end stud, a second fixing terminal, a second double-end stud and the shape memory alloy wire. The spiral groove is formed in the shell, the shape memory alloy wire is arranged in the spiral groove, the length of the shape memory alloy wire is increased in a limited space, then a large rotation angle range can be achieved, the shape memory alloy wire is used for driving a large gear to rotate, and the large gear drives the other small gear to rotate. And the rotation angle range of the driver is further increased. The upper shape memory alloy wire and the lower shape memory alloy wire can rotate bidirectionally. The device has the advantages that the shape memory alloy wire drive is integrated into a small joint rotation driver, the shape memory alloy wire is combined with a traditional gear mechanism, and the output displacement of the driver is increased by utilizing the gear mechanism.

The invention discloses a robot leg, which aims at solving the problems that the existing heavy-loaded large-scale six-foot robot generally uses a hydraulic cylinder for driving, and the obstacle passing capability of the six-foot robot is limited. The robot leg comprises a blade type swinging hydraulic motor, a robot calf, a robot thigh and a robot base section, wherein the blade type swinging hydraulic rotor comprises a motor casing, a first hydraulic oil inlet and outlet opening, a second hydraulic oil inlet and outlet opening, a flange installing hole and two output shafts. The leg structure is subjected to fire-new design; the bearing and obstacle passing requirements of the heavy-loading large-scale six-foot robot can be effectively met. In the robot leg, on the basis of the robot leg structure improvement, the blade type swinging hydraulic motor is introduced for leg joint driving, so that the defects of small rotating angle and low obstacle passing capability of the conventional hydraulic cylinder driving heavy-loading large-scale six-foot robot can be effectively overcome. The design is ingenious; the design is reasonable; the structure is simple; the use is convenient; high application values and good application prospects are realized.

The invention provides a rotating mechanism used for connecting a platform service basket to a derrick in a rotatable mode. The rotating mechanism comprises a fixed base, a rotating shaft, a speed reduction fluted disc and a drive mechanism. The fixed base is fixed to the derrick. The rotating shaft is vertically arranged on the fixed base in a rotatable mode. The platform service basket is fixedly connected with the rotating shaft. The speed reduction fluted disc is fixed to the rotating shaft. The corresponding circle center of the speed reduction fluted disc coincides with the central line of the rotating shaft. The drive mechanism is arranged on the fixed base and used for driving the speed reduction fluted disc to rotate so as to drive the rotating shaft to rotate. Compared with an existing oil cylinder steering mechanism, due to the structure that the drive mechanism drives the rotating shaft to rotate, the service basket fixed to the rotating shaft can have a wider rotation angle range. In addition, compared with an existing motor gear box steering mechanism, the rotating mechanism is simpler in structure and low in manufacturing cost.

The invention provides a spring energy storage device for an on-load tap-changer, and relates to a spring energy storage device. The spring energy storage device aims to solve the problems that according to an existing over-dead-point type spring energy storage device, the rotation angle range of tension spring drive components is small, and therefore the reliability of the spring energy storage device is low. A second transmission shaft is installed on the lower portion of a side plate through a first bearing block. The second transmission shaft and a third transmission shaft are coaxially arranged. A transmission gear is installed on the second transmission shaft and located between the side plate and a switching support plate. The end face, facing a transmission shifting block, of the transmission gear is provided with a first shifting column and a second shifting column. The first shifting column and the second shifting column are integrated with the transmission gear. The second transmission shaft is fixedly sleeved with one end of a switching shifting block. A transmission column is horizontally and fixedly installed to the other end of the switching shifting block. The transmission column is sleeved with a transmission shaft sleeve and a rotating sleeve in sequence. One end of a tension spring is installed on the transmission shaft sleeve, and the other end of the tension spring is fixed through a fixing column. Two limiting shaft sleeves are located on the periphery of a limiting wheel. The spring energy storage device is used for the on-load tap-changer.