65results about How to "Short arm" patented technology

The invention relates to a pipeline facing machine, which comprises a main supporting shaft and an enclosure, wherein the main supporting shaft is provided with a main shaft sleeve; the main shaft sleeve is movably connected with the main supporting shaft via a bearing; the main shaft sleeve is provided with a transmission gear and a cutterhead; a hydraulic cutting and feeding device and a hydraulic expansion device are respectively arranged on two ends of the main supporting shaft; a driving device is meshed with the transmission gear via a power output gear; the driving device is fixedly arranged on the enclosure; and the enclosure is movably connected with the main shaft sleeve via a main enclosure supporting bearing. According to the pipeline facing machine disclosed by the invention, the facing machine and the a pipeline can be fixed and the cutterhead can be fed and retracted by the hydraulic expansion device and the hydraulic cutting and feeding device, the automatic degree and the manpower labor intensity are improved, and the pipeline facing machine has the advantages of high expansion speed, big expansion force, stability in feeding, compact equipment structure, small volumesize, wide pipeline applicable range and convenience in carrying. According to a proper device, one person can easily finish installing and disassembling the machine on the pipeline.

The invention belongs to the related technical field of robots, and discloses a low-inertia and high-load-bearing leg structure and a foot type robot applying the same. The leg structure comprises a crotch connector, a pelvis assembly, a knee joint motor, a hip joint motor, a side-sway joint motor and leg connecting rods, the crotch connector is connected with stators of the three motors at the same time, rotors of the three motors are connected with the pelvis assembly, the side-sway joint motor is coaxially opposite to the hip joint motor, the axis of the knee joint motor is perpendicular to the axes of the two motors, the hip joint motor drives the thigh connecting rod to rotate, the knee joint motor drives the shank connecting rod to rotate, and the side swing joint motor drives the leg connecting rod to swing laterally, so that outward swing and inward retraction of the legs of the robot and flexion and extension of the thighs and the shanks are achieved. According to the robot, the three joint motors are connected to the robot body and the pelvis assembly in parallel for power distribution, so that the inertia of the legs is reduced, the rigidity of the legs is enhanced, and the bearing and dynamic response capabilities are improved.

The invention provides an oblique cutting machine, which comprises a base, a support arm in match connection with the base, as well as a sawing mechanism in movable match connection with the support arm. The sawing mechanism comprises a round saw blade, a motor and a transmission mechanism; the motor is obliquely arranged on one side of the round saw blade and is in match connection with a motor output shaft; and the round saw blade is in match connection with a saw-blade shaft, wherein the motor output shaft is obliquely arranged backwards relative to the saw-blade shaft. Therefore, the motor is also arranged relatively behind the oblique cutting machine, so as to reduce packaging volume and cost, shift the gravity center of the sawing mechanism, shorten force arm and increase the life span of a torsional spring of the sawing mechanism. In addition, as a hypoid gear is utilized as the transmission mechanism, the oblique cutting machine can reduce noise during cutting operation and is smooth in transmission, so as to improve cutting precision.

The invention discloses a windscreen wiper and a vehicle. The windscreen wiper comprises a motor (10), a connecting rod mechanism (20) and a wiping arm (30), wherein the connecting rod mechanism (20) is connected between the motor (10) and the wiping arm (30) for transferring the power of the motor (10) to the wiping arm (30). The windscreen wiper is characterized in that the connecting rod mechanism (20) is a multi-rod mechanism. The vehicle comprises the windscreen wiper. In the windscreen wiper disclosed by the invention, as the connecting rod mechanism (20) is the multi-rod mechanism, compared with a traditional four-rod mechanism, the multi-rod mechanism has more connecting rods, and the torque required to be transferred by each connecting rod is reduced under the condition of definite load. Therefore, force arms of all the connecting rods can be shortened, that is, the lengths of all the connecting rods can be shortened, so that the mounting space and the moving space of the connecting rod mechanism (20) can be reduced, and the windscreen wiper is convenient to arrange.

The invention discloses a pair of scissors which is simple in structure and saves labor. The scissors comprise a first half body and a second half body which are matched mutually and hinged in the middle portions. The tail of the first half body and the tail of the second half body are provided with a first grab handle and a second grab handle respectively, and the head of the first half body and the head of the second half body are provided with a first scissor head and a second scissor head respectively. A first cutting edge is arranged on the side, close to the second scissor head, of the first scissor head, a second cutting edge is arranged on the side, close to the first scissor head, of the second scissor head, the outline of the first cutting edge and the outline of the second cutting edge are arc and arranged symmetrically, and included angles between tangent lines of all crosspoints of the first cutting edge and the second cutting edge are the same.

The invention discloses an automatic opening mechanism for an automobile engine tile cover. The automatic opening mechanism comprises an unscrewing sliding table. Sliding blocks are symmetrically arranged on two sides of the bottom of the unscrewing sliding table along the length direction, guide rails matched with the sliding blocks are arranged below the sliding blocks, and the bottoms of the guide rails are fixed on a horizontal sliding plate. An opening cylinder is arranged on the upper portion of the unscrewing sliding table, the extending-out end of a piston rod of the opening cylinder is connected to an opening pull rod, an opening pressure rod parallel to the opening pull rod is fixedly installed on the side edge of the bottom of the opening cylinder, the opening pull rod and the opening pressure rod sequentially penetrate through the unscrewing sliding table and the horizontal sliding plate, a returning spring is further sleeved on an outer wall of the opening pressure rod adjacent to the unscrewing sliding table, a translation cylinder pushing the horizontal sliding plate to move along the direction of the sliding blocks is arranged outside the horizontal sliding plate positioned on the side of the opening pressure rod, and an opening top block and an opening pressure block are respectively installed at the bottom end of the opening pull rod and the bottom end of the opening pressure rod. The automatic opening mechanism is simple in structure and convenient to use, and stability and reliability of the opening process of the tile cover in assembly can be effectively guaranteed.

The invention discloses a double-conductor equipment wire clamp, which comprises a wire clamp body and a crimping pipe, wherein the crimping pipe and the wire clamp body are connected in an interpolating mode. The invention adopts the crimping pipe interpolation welding, effectively increases the welding area and improves the overall strength of a welding seam. After the welding area is increased,the overall current carrying capacity of the wire clamp is improved, and the problem of excessive temperature rise of fittings caused by insufficient current carrying area is effectively prevented. In actual operation, an external force is transmitted from conductors to the crimping pipe, a distance between a direct force-receiving portion of the crimping pipe and a welding seam fixed point is just a distance in a non-crimping region, the force arm is short, the stress state is good, the wire clamp can prevent welding snap under the action of a higher external force, and long-term operation is guaranteed; the material of the double-conductor equipment wire clamp is changed from pure aluminum in the traditional scheme to aluminum alloy, thus the tensile property and bending resistance aregreatly improved; and water leaking holes can be formed directly under accumulative water positions of the fittings and are directly processed in a fitting production factory, the working procedures on the construction site are reduced, the installation efficiency is improved, and the fittings are effectively prevented from spalling due to the accumulative water.

An electrical connector is to be connected to a first mating connector and a second mating connector. The electrical connector includes a plurality of terminals; and a housing for holing the terminals in a terminal arrangement direction. The housing includes an upper housing and a lower housing attached to the upper housing. The upper housing includes a plurality of upper grooves for holding the terminals. Each of the upper grooves has an upper narrow width portion having a width smaller than other part of the upper groove. The lower housing includes a plurality of lower grooves for holing the terminal. Each of the lower grooves has a lower narrow width portion having a width smaller than other part of the lower groove.

The invention relates to the field of automatic mechanical equipment, in particular to an industrial vehicle. The invention is realized through the following technical scheme: the industrial vehicle comprises a handle, a main frame and a driving wheel assembly, and further comprises a controller, a pump station and a jacking device, wherein a stand column is mounted on the main frame and comprisesa top plate and a back plate connected with the top plate; the jacking device is abutted against the top plate; and compared with the controller and the pump station, the jacking device is closer tothe back plate. The invention aims to provide the industrial vehicle which is high in stability and lifts stably, the positional relation of various components of the vehicle is optimally designed, ashort vehicle body design is implemented, and thus, the radius of turning circle is small.

The present invention relates to a wind-driven generator tail plate folded speed regulating mechanism. Said mechanism includes power generator machine body mounted on the vertical shaft, wind wheel mounted on the front end of the machine body of power generator, tail bar mounted on the rear end of the machine body of the power generator and tail plate mounted on the rear end of tail rod. The tailplate is wobbly connected on the rear end of tail bar, and the tail plate and tail bar are connected together by means of jointed shaft. When the wind force is strong, the tail plate can be rotated relatively to tail bar, so that the arm of force is shortened, and force moment is reduced.

The invention discloses a driving chain structure of a wind generating set and a wind driven generator comprising the same. The wind generating set comprises a front frame, a fan impeller, a rotatingshaft, a fixed shaft, a front bearing and a rear bearing, the fixed shaft is arranged on one side, facing the fan impeller, of the front frame, the fixed shaft is provided with a through hole which communicates with the interior of the front frame, the rotating shaft is arranged in the through hole, the front end of the rotating shaft extends out of the through hole and is fixedly connected with ahub of the fan impeller, and the hub is arranged outside the fixed shaft in a sleeving mode and can rotate relative to the fixed shaft; and the front bearing and the rear bearing are both arranged onthe fixed shaft or the rotating shaft, and the gravity center of the fan impeller is located between the front bearing and the rear bearing. According to the driving chain structure and the wind driven generator, the gravity center of the fan impeller is located between the front bearing and the rear bearing, the arm of force from the gravity center of the fan impeller to the two bearings is shortened, the bending moment of the fan impeller borne by the bearings is reduced, the fatigue alternating load required to be borne by the bearings is further reduced, therefore, the sizes of the bearings can be reduced, and the cost of the wind generating set can be reduced.

The invention discloses a moving device for large flower pots. The moving device comprises a moving rod I, a moving rod II, a buffer pad I, a buffer pad II, a moving left template, a moving right template, a check bolt I, a check bolt II, a check nut I and a check nut II, wherein the moving left template and the moving right template are symmetrical; an arc side is arranged in the middle part of the inner side of each of the moving left template and the moving right template; the upper surfaces at the two ends of the inner side of each of the moving left template and the moving right template are provided with bosses; and a through hole is formed in a part, close to the outer side of each of the moving left template and the moving right template; the buffer pad I and the buffer pad II are separately adhered onto the surfaces of the upper arc sides of the moving left template and the moving right template through gluing; the buffer pad I and the buffer pad II cling to an outer wall below the upper edge of a flower pot; the check bolts are separately inserted into circular holes in the bosses, and are locked by the check nuts; the moving rod I and the moving rod II are inserted into the outer side through holes in the moving left template and the moving right template; and two people can move a large flower pot by holding the moving rod I and the moving rod II by hand. The moving device is simple in structure and convenient to operate; the moving is labor-saving; the clamping is safe and reliable; and the moving work efficiency is high.

The invention discloses a W-shaped pier. The W-shaped pier comprises an upper pier body, a lower pier body and a bent cap; the upper pier body is W-shaped; the top of the upper pier body is connectedwith the bent cap; the bottom of the upper pier body is connected with the lower pier body; the lower pier body is a double-column pier. According to the W-shaped pier, the upper pier body on the upper portion of the W-shaped pier is W-shaped and can better adapt to arrangement of the support of a wide-body beam bridge; cantilever arms are short, so that stress is reasonable, and therefore, the defects of a traditional Y-shaped single-column pier in the wide-body beam bridge are effectively overcome, and construction is convenient; the upper pier body has a cavity, so that materials are saved;meanwhile, the lower pier body of the lower portion of the W-shaped pier is a double-column pier, and compared with a three-column pier or large-size pier body design adopted by a traditional wide-body beam bridge, such a structure can assist in saving land under the bridge and reducing construction cost. The W-shaped pier is simple in structure, convenient to manufacture and good in effect.

The invention discloses a self-locking type drill chuck, belongs to the field of drill chucks, and particularly relates to a self-locking type drill chuck. A nut sleeve is in interference fit with theoutside of a nut, a plurality of keys are arranged on the nut sleeve along the circumferential direction, an elastic sheet is limited among the keys of the nut sleeve through self elasticity to be assembled on the nut, and a supporting protrusion which is arranged between a positioning protrusion and a locking end protrusion and is recessed inwards is arranged on the elastic sheet; and a rotary sleeve is provided with a hollow groove and a supporting convex key which are matched with the supporting protrusion when a non-self-locking state and a self-locking state are mutually switched, in theself-locking state, the supporting convex key abuts against the supporting protrusion of the elastic sheet, and the supporting force is generated on the elastic sheet. The self-locking type drill chuck is simple in structure and high in practicability.

The invention relates to a cable rack, which comprises a stand column and a support arm respectively made of a fiber-reinforced thermosetting polymer composite material, wherein the stand column comprises a stand column body; a plurality of forward and convexly extending support arm support parts are uniformly distributed on a front surface of the stand column body; a support arm connecting column is arranged in the middle parts of upper surfaces of the support arm support parts; a connecting column reinforcing rib is arranged between the support arm connecting column and the stand column body; and correspondingly, a sleeve joint hole is arranged on a rear end of the support arm, and comprises a sleeve joint hole body adapted to the support arm connecting column and a sleeve joint hole opening arranged on a rear side of the sleeve joint hole body and adapted to the connecting column reinforcing rib. The cable rack has the advantages of simple and reasonable structure, easiness in processing and manufacturing, convenience in storage, transportation, installation and maintenance, high use reliability and safety, and long service life.

The invention discloses a pruning machine, wherein a steel wire shaft (7), an upright rod (12), a switch top block (13), a main button (2), a lifting plate (8) and an inching switch (6) are arranged at the left of a motor component (5), a draw plate (10) and a sub button (4) are arranged at the right of the motor component (5), two ends of the steel wire shaft (7) are respectively connected with the right end of the main button (2) and the left end of the lifting plate (8), a rigid metal rod (9) is connected between the right end of the lifting plate (8) and the upper end of the draw plate (10), the lower ends of the draw plate (10) and the sub button (3) are hinged with a shell (11), the lifting plate (8) is sliding sheathed on the upright rod (12) sheathed by the switch top block (13), and the inching switch (6) is above the switch top block (13). The invention has the advantages that the invention can turn on and off motor with small force and can prevent thermal deformation of driving mediums caused by the heat radiation of motor.

The invention provides a pedal bicycle which is characterized by comprising a frame, and a manual variable speed driving device, a steering device, a front wheel and a rear wheel which are mounted on the frame, the manual variable speed driving device comprises a rack, a force application handle, a main power shaft, a one-way overrunning clutch, a reset device and a variable speed gear set, one end of the force application handle is fixed to the input end of the one-way overrunning clutch, and the output end of the one-way overrunning clutch is fixed to the main power shaft; the force application handle rotates around the main power shaft in a reciprocating mode to sweep a sector face to move and do work, the driving force arm corresponding to the force application handle directly drives the input end of the one-way overrunning clutch to rotate forwards and backwards, and therefore the output end of the one-way overrunning clutch is intermittently driven to rotate in a one-way mode. The variable speed gear set is an angular speed increasing gear set and comprises an input end gear, a middle change gear set and a terminal gear which are in transmission connection in sequence. The power output efficiency is high, the structure is compact, no idle stroke exists in transmission, and safety and comfort are achieved.

The invention discloses a large-stroke telescopic mechanism, and belongs to the field of mechanical telescopic equipment. The large-stroke telescopic mechanism comprises a first rotating shaft, a second rotating shaft and a first transmission arm, the two ends of the first transmission arm are rotationally connected with the first rotating shaft and the second rotating shaft correspondingly, the first transmission arm is rotated around the first rotating shaft under the effect of a driver, the first rotating shaft and the second rotating shaft are in transmission connection through a first transmission mechanism, the first transmission mechanism includes a front transmission wheel and a rear transmission wheel which are mutually driven, the front transmission wheel is fixedly connected with the first rotating shaft, the rear transmission wheel is fixedly connected with the second rotating shaft, and the second rotating shaft is used for being connected with a terminal arm. The large-stroke telescopic mechanism has the advantages of making the expansion and contraction more stable and the telescopic stroke longer.