52results about How to "Advance and retreat freely" patented technology

The invention is concerned with the electric bicycle, especially the bicycle that the left and the right wheel can automatic balance, the two wheels are at left and right side of the rider, includes the carriage, the standing stick, the wheel, the electromotor, the driving circuit, the angle, the angle velocity transducer, and the treadle transducer, the characteristic is: the carriage (-) is composed by the separating of the cell chamber (-) and the electric chamber (-), the electric chamber (-) is set the electromotor (-,-), the electromotor driving circuit (-,-) and the central processing circuit (-); the electromotor driving circuit (-,-) includes the release loop, the release loop is set the release switch (-) and the consumed or stored energy element (-); the end of the handle assembly (-) is set the steering controlling mechanism (-,-).

The invention discloses an anti-terrorist explosion-proof robot, comprising a chassis, a crawler traveling mechanism, an obstruction breaking mechanism, a mechanical arm mechanism, a shovel pushing mechanism, a monitoring mechanism and an electric control board control unit, wherein the electric control board control unit is positioned at the central part above the chassis; the crawler traveling mechanism is movably connected below the chassis; the obstruction breaking mechanism is positioned at the front of the chassis; the mechanical arm mechanism is positioned at the front end above the chassis; the shovel pushing mechanism is positioned at the rear end above the chassis and at the rear part of the chassis; and the monitoring mechanism is positioned above a top cover covering the electric control board control unit. The crawler traveling mechanism has a tank type traveling characteristic, so that the robot can adapt to various landforms; an explosion-proof structure can realize an obstruction-breaking cutting explosion-proof function; the mechanical arm mechanism can realize a grabbing function; the shovel pushing mechanism can realize a moving function; and the monitoring mechanism can realize an explosion-proof environmental monitoring function. In the anti-terrorist explosion-proof robot, a plurality of explosion-proof functions of explosives can be implemented at terrible sites in which people are not suitable for staying, so that a plurality of single-function mechanical equipment can be replaced.

The invention relates to a multi-purpose cooperative rotary cut radial self-rotation slit type inner concave multi-blade coreless drill bit, which is applicable to lubricating and cooling the drill bit and automatically drilling holes in a drilling process of a complex geological structure and has high drilling efficiency, long life and high applicability. The multi-purpose cooperative rotary cut radial self-rotation slit type inner concave multi-blade coreless drill bit comprises a special alloy crown part, and a diamond composite sheet is additionally arranged, so the wear degree of steel can be effectively relieved, the consistency in aperture is guaranteed, and the phenomenon of shrinkage is avoided. The high-pressure water jet of the drill bit is very beneficial for assisting in the drilling efficiency; the drilling diameter of the water jet is larger than the drilling diameter of the conventional mechanical rotary cut drilling, and the aperture of a soft coal seam at a local area can be increased by 20-30 times. The drill bit can be used for performing other drilling construction processes in combination with product characteristics when water circulates through a region drilled to meet the requirement of the process in a cut joint outside a fracturing breakage region, a hole collapse region, a hole blockage region, a gas accumulation region and a region with coal blast and spray holes, and the construction is integrally performed to save time and labor.

The invention relates to a variable frequency steel strand cable penetrating machine. The machine comprises a machine shell, wherein a steel strand inlet pipe and a steel strand outlet pipe are arranged on two side plates of the machine shell; a driving mechanism, a clamping mechanism and an adjusting screw rod are arranged in the machine shell; the driving mechanism comprises a reduction gear set and a carrier gear; the clamping mechanism comprises two upper occupied plates and two lower occupied plates which are symmetrically arranged; movable connection plates are correspondingly arranged at the two sides of the upper and lower occupied plates; upper pressure gears are arranged on the upper occupied plates; lower pressure gears are arranged on the lower occupied plates; the upper pressure gears are meshed with the lower pressure gears; the reduction gear set and the carrier gear are simultaneously meshed with the lower pressure gears; semicircular slots are arranged in the middle of the outer edges of the teeth of the upper and lower pressure gears; one end of each of the lower occupied plates extends upwards to form a support plate of the adjusting screw rod; support shafts are arranged between the support plates; threaded holes are arranged in the middle of the support shafts; the adjusting screw rod penetrates through the threaded holes; and the end of the adjusting screw rod is movably connected with a locking pendulum shaft. The machine has the following beneficial effects: the machine can succeed in cable releasing and cable penetrating once, can proceed or step back freely, can accurately control the length of the steel strands conveyed into prestressed ducts and can solve the problem of long-distance cable penetrating.

The intelligent lawn mower with the charging component of the automatic charging pin inserted and pulled out of the contact piece can be automatically plugged and unplugged for charging; just like a car needs a gas station, an electric lawn mower also needs a charging station, and the market needs an automatic charging pin inserted and pulled out The intelligent lawn mower with the charging assembly of the contact piece solves the problem of frequent manual charging due to the undurable battery; the left and right sides of the bottom plate laid horizontally on the ground are respectively provided with guide rails (233c The curve section of each guide rail of ) is a cubic curve, so as to reduce the impact; a section of curve of the contact surface ((234b) of the contact piece (234) is a logarithmic spiral, because the logarithmic spiral is an equiangular spiral with pressure The characteristics of being equal everywhere at the corners are beneficial to contact insertion. There are four contact pieces (234), pressure piece torsion springs (234a) and rotating shafts each, forming double doors facing each other, corresponding to the charging pins standing on the front wall in front ((233), so that the charging pin is inserted and extracted, reciprocating with this. The use of cubic curves for the guide rail and the use of logarithmic spirals for the contact surface are technical progress.

The invention relates to an automatic core taking mechanism which comprises a cylinder, a fixed plate, limiting rods, a guide sleeve, a rubber sleeve, a limiting block and a guide rod. The guide rod passes through a guide hole on the fixed plate to be connected with a piston rod of the cylinder; the guide rod is sleeved with the guide sleeve; the limiting block is arranged at the bottom end of theguide rod; the rubber sleeve connected with the guide sleeve is arranged on the guide rod and above the limiting block; a plurality of vertical downward limiting rods are arranged on the fixed plateand around the guide sleeve. The automatic core taking mechanism has the advantages that the automatic core taking mechanism is simple in structure and ingenious in design; the rubber sleeve is adopted to expand a locking mechanism, and in the clamping process, the guide rod is directly lifted up by the cylinder to compress the rubber sleeve to generate an expansion force, so that the rubber sleeve is in interference fit with a matching hole of a core, thereby implementing clamping. Therefore, the core taking mechanism disclosed by the invention is free to advance or retreat in the core takingprocess without reserving a retreating space in a sand mold, so that the defects of a conventional lifting hook core taking mechanism are overcome, and automatic core taking for a KW line large-sizedcore is implemented.

The invention relates to a mowing machine with a side-cutting large-width grass gathering function and an automatic-locking logarithmic spiral brake. The side-cutting large-width grass gathering function means that the mowing machine comprise a side-cutting device arranged on the two sides of the front wheels and on the edge of the cutting range of the mowing machine, such that the grass can be covered. The side-cutting device is composed of a side-cutting body (91), a side-cutting torsion spring (92), a side-cutting movable arm (93) and side-cutting trimming teeth (93d). A rotation shaft and the side-cutting torsion spring (92) are arranged on the side-cutting body (91). A side-cutting rotation sleeve (93c) is arranged on the side-cutting movable arm (93). The side-cutting rotation sleeve (93c) is movably arranged on the rotation shaft, and the side-cutting torsion spring (92) enters an assembly fixing position, such that the side-cutting movable arm (93) can be opened with a certain angle when mowing is carried out. The side-cutting movable arm (93) is also provided with the side-cutting trimming teeth (93d). The plan-view shape of the unilateral side-blade of the teeth of the side-cutting trimming teeth (93d) is a section of a logarithmic spiral with a constant pressure angle characteristic. The side-cutting trimming teeth has an arched back and a self-grinding function, such that slashing cutting and sliding cutting can be facilitated. Therefore, grass gathering and trimming are both facilitated.

This invention is about a repeated pedaling assistant bicycle. It includes the frame, the braking mechanism, the back driving wheel, the back wheel bearing, the tyres, the pedals which is fastened to the pedaling handles, the fan-like forward meshing wheel which meshes the gearing one-way flywheels. On each side of the frame, there a pedaling handle and pedals, the fan-like forward meshing wheel and the one-way flywheel among which the pedal is fixed on the front of the handle and the fan-like forward meshing wheel on the back, in the part between them are some pinning holes, in the frame are some handle pins. Through the pinning holes and the pins, the handles can be knuckled on the frame. The fan-like forward meshing wheel is structured with inward gearing hoops or roller chain section of intrados, the outside circle of the one-way flywheel are gear wheel or chain wheel, the pedaling handles are jointed with the top surface or the outside circle surface of the fan-like forward meshing wheel, and on the edge of the pedals are some edge hooks. This invention is simple and feasible with a light structure, and it works efficiently and rides comfortably with a character of anti-shocking and anti-tire-bursting.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly can be automatically plugged and unplugged for charging; the pin ball (233a) provided at the root of the charging pin (233) is provided with a cross pin on the spherical seat, It solves the problem of reliable plug-in and plug-in charging with micro-volume follow-up. Just as a car needs a gas station, an electric lawnmower also needs a charging station. The curve section of each guide rail of the base plate laid on the ground surface is a cubic curve, so as to reduce the impact; the contact surface of the contact sheet (234) (234b) A section of curve is a logarithmic spiral, because the logarithmic spiral is that the equiangular spiral has the characteristics that the pressure angle is equal everywhere, which is beneficial to contact insertion. There are four contact pieces (234), pressure sheet torsion springs (234a) and rotating shafts. Form face-to-face double doors, corresponding to the charging pin ((233) standing on the front wall in front, so that the charging pin is inserted and pulled out, reciprocating in this way; the guide rail uses a cubic curve and the contact surface uses a logarithmic spiral .

The invention discloses a liquid-controlled type under-shaft savaging tool. The tool is composed of a joint, a sealing ring, a sliding sleeve, a fixing pin, a piston, a housing, a steel bead, a slip,a mandrel, a screw, a restoring spring, a stroke pin, a pin spring and a semi-circular button and is characterized in that the salvaging tool is connected with the lowermost part of an under-shaft piping, and threads are tightly screwed to lower the tool into a shaft. Lowering is stopped when a lowering device is 1-2 m from the top of fish, and the total suspension weight is recorded. A sludge pump is started to flush the fish, the sludge pump is switched off after the fish is washed clean, and the salvaging tool is slowly lowered again. When the suspension weight is reduced, lowering is stopped to try to lift a drilling column, when it is confirmed that the fish is caught, and the salvaging tool is lifted upwards to take out the fish. If fish salvaging is blocked, tool piping is lowered,lowering is stopped when a weight indicator is lowered than the suspension weight again, the sludge pump is started for around 10 seconds, the piping is lifted upwards, and the tool is taken out fromthe fish.

The invention relates to a bicycle of the ambulation style. It contains the frame of the bicycle, the braking mechanism, the back annulus for driving, the back-annulus axes, the tyre, the footplate is fixed on the stepping handle, the fan-shaped main gear wheel and the unilateralism flywheel with the gear wheel. The left and right sides of the frame of the bicycle sets up a stepping handle and its footplate, the gear wheel and the unilateralism flywheel. The footplate is fixed in the front of the stepping handle and the gear wheel is fixed in the back of the stepping handle. The handle body between two ends of the stepping handle has the pinhole and the handle pin connects on the frame of the bicycle and hinge-joints on the frame of the bicycle by the pinhole and the handle pin. The outer circle of the unilateralism flywheel is the gear or the chain wheel. The footplate connects on the gear wheel. On the one side of the footplate are set up with the side-hamulus. The invention is easy and applied. It has the deft organization, the high efficiency transmission, the comfortable riding, the quakeproof and the defending bursting-tyre.

The invention discloses a transmission device for welding line cutting. The transmission device is mainly composed of a knife rest (29) and a driving device, wherein a knife is installed on the knife rest (29), the driving device drives the knife to rotate through a transmission part, and the driving device is installed on a machine base. The transmission device is characterized by further being provided with an axial feeding part and a radial feeding part. The axial feeding part drives the knife to perform axial movement, the radial feeding part drives the knife to perform radial movement, and the axial feeding part and the radial feeding part are both arranged on the machine base. The single-feeding mode adopted in the prior art is replaced by the double-feeding mode adopted in the transmission device, the double-feeding mode enables the knife to be capable of performing compound movement or single movement, the applicability of the machining working conditions is improved, dependence on the forming knife is reduced, accordingly, the transmission device is high in work efficiency and high in universality, and therefore the transmission device is suitable for popularization and use.

The invention relates to a transmission shaft type tricycle comprising a rotary handle, a front fork shaft, a front fork frame which are sequentially connected, wherein the bottom end of the front fork frame is provided with a front wheel; the upper end of the front fork frame is connected with the rotary handle and a conical power input bevel gear through a rotary handle shaft; the conical power input bevel gear is sequentially connected with a conical power output bevel gear, a flexible transmission shaft which transmits vertically, a conical redirecting active bevel gear, a redirecting passive bevel gear, a horizontal transmission shaft, a conical axle active bevel gear and a conical axle passive bevel gear for rotation; the conical axle passive bevel gear is fixed between two rear wheels of the tricycle through horizontal axles; and a tricycle frame is positioned on the conical axle passive bevel gear. The transmission shaft type tricycle is free to advance or retreat when in use, is convenient to use, solves the problem of easy chain falling and has great popularization value.

The invention provides a rear-row seat folding mechanism capable of giving way backwards. The rear-row seat folding mechanism capable of giving way backwards is formed by compounding two hinge four-rod mechanisms, wherein the first hinge four-rod mechanism is formed by hinging a frame I, a frame connecting rod I, a connecting rod I and a frame connecting rod II in sequence; the frame I is fixedly connected with a seat base; the connecting rod I is integrally connected with a bracket of a seat backrest in a fixed manner; the second hinge four-rod mechanism is formed by hinging a frame II, the frame connecting rod II, a connecting rod II and a frame connecting rod III in sequence; the frame II is integrally connected with the frame I in a fixed manner; the rear end of the connecting rod II is hinged with the upper end of the frame connecting rod II and the front end of the connecting rod I; and the front end of the connecting rod II is hinged with the upper end of the frame connecting rod III. The rear-row seat folding mechanism capable of giving way backwards has the advantages of simple structure, simple and convenient operation, less machining amount, low cost, flexibility and beautiful appearance and is especially suitable for seat adjusting devices for small vehicles.

The invention discloses a device for launching a fire-extinguishing bullet at a high-rise building by an unmanned aerial vehicle. The device for launching the fire-extinguishing bullet at the high-rise building by the unmanned aerial vehicle comprises an unmanned aerial vehicle, a launching box, explosive fire extinguishing bullets, a high-pressure gas cylinder and a remote controller. The unmanned aerial vehicle is provided with rotating wings, a conventional camera, a positioning sighting device, an infrared sighting device and a laser sighting device to facilitate the operation in a complexenvironment such as night. The launching box is fixed to a landing gear under the unmanned aerial vehicle by a box suspension device. A plurality of launching barrels are arranged in a front bin of the launching box. The high-pressure gas cylinder and a pressure indicator are arranged in a rear bin of the launching box. High-pressure gas enters a high-pressure gas distribution box and a pluralityof gas outlet valves. The remote controller controls launching of compressed gas. The remote controller is used for launching the explosive fire extinguishing bullets one by one to enter a fire-extinguishing place of the high-rise residential building and extinguish fire. The device for launching the fire-extinguishing bullet at the high-rise building by the unmanned aerial vehicle is not restricted by the terrain and the distance between buildings, and can fly up and down to north, south, east and west directions of high-rise residential buildings at high speed and in a maneuvering mode, sothat the fire-extinguishing in the high-rise residential building can be carried out rapidly, accurately and efficiently, the defect of fire fighting truck in high-rise building fire-extinguishing isovercome, and the unmanned aerial vehicle high-rise building launching fire-extinguishing bullet device is suitable for fire departments at all levels such as cities, counties, townships and communities.

The invention discloses a table type tenoning device for woodworking, belonging to the technical field of a woodworking tool. The table type tenoning device comprises a base, wherein a track is arranged on the base; a slide rest I, a slide rest II and a slide III are arranged on the track in order, and the slide rest I is connected with the track in a sliding mode; a regulating seat track is arranged on the slide rest I, and a regulating seat is arranged on the regulating seat track in the sliding mode; the slide rest II and the slide rest III are provided with a folding lifting mechanism, and a horizontal joist is arranged at the upper end of the folding lifting mechanism; a regulating and locating mechanism for controlling the sliding and locking of the slide rest II or the slide rest III is arranged on the base. The table type tenoning device realizes slotting, punching and flexible processing of a mortise and tenon structure. The table type tenoning device has the advantages of convenient operation and simple structure and is especially suitable for manual woodworking.

Provided is a lawn mower with a side handle for adjusting a fixed brake and unlocking for front three-wheel steering. The lawn mower achieves remote control over front three wheel steering. The side handle is used for controlling a curved path and a straight path for front wheel steering, and the three-wheel mower can walk straightly; the movement area is larger; when a steering control handle (m1) arranged on a panel does not strain a stay cord and a guide bolt head (s2t) arranged on the head of a guide bolt (s2) enters a shaft pit (s5) formed in a front wheel vertical shaft (t10), a front wheel can be made to walk straightly but not steer; when the steering control handle (m1) arranged on the panel strains the stay cord, the stay cord strains the guide bolt head (s2t) through a guide bolt stay cord hole (s2h), and when the guide bolt head (s2t) arranged on the head of the guide bolt (s2) gets away from the shaft pit (s5) formed in the front wheel vertical shaft (t10), the front wheel is made to walk in the curved path. The guide bolt head (s2t) arranged on the head of the guide bolt (s2) is logarithmic spiral cam meshed with the shaft pit (s5) which has a logarithmic spiral and is formed in the front wheel vertical shaft (t10).

The invention provides a dustless chalk sleeve. The dustless chalk sleeve comprises a hollow sleeve body and a moving component which can move along the longitudinal direction of the sleeve body, wherein the front end of the sleeve body is provided with a chalk plugging port and a holding mechanism for holding the chalk; the side face of the sleeve body is provided with a plurality of lock holes along the longitudinal direction; the moving component comprises a moving seat and a lock catch; the moving seat is arranged in the sleeve body; the lock catch is hinged with the moving seat; a springis arranged between the lock catch and the moving seat; the front end of the moving seat is provided with a connecting piece for connecting the chalk; the lock catch is provided with a key which is extended out of the sleeve body and a clasp which can be matched with the lock hole; and the side face of the sleeve body is provided with a guide groove for moving the key. Compared with the prior art, the dustless chalk sleeve of the invention has the advantages of simple structure, convenient use, flexible movement of the chalk, free advancing and retreating, reliable positioning of the chalk and no backing phenomenon during the writing; and because the chalk is held tightly by using an elastic hoop, the chalk is prevented from falling, and the problem of damage or even breakage of the chalkis overcome.

This endoscope (1) is provided with: an operation lever part (30) which is provided to an operation unit (3), which has an operation shaft (32), and which can adjust the curve angle of a curved section (7) in association with an inclination operation; a sliding body (37) which is disposed so as to freely advance/retract in the axial direction of the operation shaft (32); a flexible exterior cover(33) which is watertightly fixed to the operation unit (3) so as to cover the outer peripheries of the sliding body (37) and the operation shaft (32) and which can deform due to a change in the internal pressure of the operation unit (3); and a returning member (38) which causes the sliding body (37) to return to the operation unit (3) side when the internal pressure of the operation unit (3) is relieved.