63results about How to "Large telescoping range" patented technology

The invention discloses a rotatable machine gripper. A first worm gear motor and a second worm gear motor are fixedly arranged on the front side and the rear side between an upper base plate and a lower base plate respectively; a finger portion comprises a left finger and a right finger which are respectively formed by two parallelly arranged rotatable L-shaped pushing rods; a polygonal iron piece is fixedly arranged at one end of every L-shaped pushing rod; a rotation portion comprises a second back plate; and a third worm gear motor which is fixedly arranged on the second back plate is connected with the back of a first back plate. The rotatable machine gripper has the advantages of achieving 360 degree rotation of the machine gripper and being convenient to grab workpieces due to the worm gear motors and enabling rotation and opening and closing control of the machine gripper to be flexible and an extensible range to be large due to the facts that an opening and closing angle of the machine gripper is 160 degrees and the opening and closing degree is large.

The invention provides a transmission assembly and a lifting vertical column. The transmission assembly comprises a first screw rod, a second screw rod, a third screw rod, a driving device, a first nut which is in transmission fit with the first screw rod, a first sleeve fixedly connected with the first nut, a second nut which is in transmission fit with the second screw rod, a second sleeve fixedly connected with the second nut, a third nut which is in transmission fit with the third screw rod, and a third sleeve fixedly connected with the third nut; the first nut, the second nut and the third nut are fixedly arranged in the circumferential direction, the second screw rod and the third screw rod are hollow, the first screw rod and the second screw rod can rotate synchronously and expand and contract relatively in the axial direction, and the second screw rod and the third screw rod can rotate synchronously and expand and contract relatively in the axial direction; and the four-sectiontransmission assembly achieves driving through rotation of the screw rods, the sleeves are driven by the nuts to achieve expanding and contracting, and thus, transmission of the transmission assemblyis stable and reliable.

The invention discloses a dual-motor drive assembly clamping jaw capable of simultaneously stretching out and drawing back in a two-way mode. The dual-motor drive assembly clamping jaw comprises a lower housing pedestal which is taken as a bearing structure, an upper housing pedestal which is positioned above the lower housing pedestal, a clamping jaw component which is arranged on the upper housing pedestal, a clamping jaw opening component which is arranged on the upper housing pedestal and a height regulating component which is arranged on the lower housing pedestal, wherein the clamping jaw component comprises a left vice jaw and a right vice jaw which are corresponding in position and are used for clamping a workpiece; the clamping jaw opening component is linked with the clamping jawcomponent; the height regulating assembly is linked with the clamping jaw component; the height regulating component comprises a first direct-current motor, a scissors fork type assembly and a gear rack transmission assembly which are sequentially arranged in a linked mode; the upper housing pedestal is fixedly arranged above the scissors fork type assembly; and under torque transmission of the gear rack transmission assembly, the scissors fork type assembly can perform ascending or descending action to realize increase or reduction of height of the upper housing pedestal. The dual-motor drive assembly clamping jaw has the advantages and the effects of being simple in structure and adjustable in height.

The invention provides a linkage type telescopic arm. The linkage type telescopic arm comprises a driving device, a fixed cylinder and at least one stage of telescopic device, wherein a linear groove and a spiral groove are arranged in the inner wall of the fixed cylinder along the axis, and the telescopic device comprises a rotating cylinder and a translation cylinder; linear grooves and spiral grooves are also designed on the rotating cylinder and the translation cylinder according to design requirements; and the fixed cylinder, the rotating cylinder and the translation cylinder are sequentially nested. By adopting a multi-stage spiral cylinder step-by-step propelling manner and utilizing the fit of the spiral grooves and the linear grooves, the linkage type telescopic arm realizes ordered telescoping, has a large telescoping range in a small space and can realize demanded elongation in a limited space. The linkage type telescopic arm is compact in structure and light in weight and realizes step-by-step linkage telescoping. A telescopic mechanism meeting the requirements of specific product applications has a compact structure and a small size and can be elongated to a required length in the limited space.

A pneumatic hidden type lifting structure of a wireless transmitting charger comprises an installation ground groove and a protection base, a telescopic fence is installed on the periphery of the protection base, a wireless transmitting plate is fixed to the bottom face of a protection cover plate, and a lifting air bag is installed in the protection base. Rodless air cylinders are arranged at theupper ends of the mounting ground grooves, and foreign matter removing scratching rods are mounted on sliding rails of the two rodless air cylinders; the two ends of the rodless cylinder are connected with the bottom of the lifting groove through connecting arms. The output end of the telescopic rod is connected with the traction rod. The lifting air bag is small in occupied space after being recycled and can be embedded into the ground or hidden in the mounting ground groove, the external space is saved, and attractiveness is good; accumulated water on the periphery of the whole charging device is guided into the drainage ditch through the water guide channel, the waterproof effect is good, and the accumulated water condition in rainy days is avoided; the foreign matter removing rod is arranged to be of a liftable structure, so that the foreign matter removing rod is placed at the position flush with the surface of the charger when not working, and damage caused by external force compression is effectively reduced.

The invention discloses an anti-floating bag type positioning grouting anchor rod for an underwater tunnel and a construction method of the anti-floating bag type positioning grouting anchor rod. The anti-floating bag type positioning grouting anchor rod comprises a bag type positioning grouting anchor rod foundation main body and a positioning grouting device; the bag type positioning grouting anchor rod foundation main body comprises a bag, a perforated pipe and a pressure sensor; the positioning grouting device comprises an electromagnet limiting stopper, a grouting guide pipe and a displacement sensor; the bag serves as a container for containing later grouting liquid, and grouting space is large; the bag is large in telescopic range, small in size without grouting, and rapid and convenient to construct; steel bars are bundled and connected with external flexible pipes, manufacturing is easy, and construction cost and construction period are saved; rapid positioning grouting is achieved through the electromagnet limiting stopper, and grouting amount and the electromagnet limiting stopper are more accurately controlled through the displacement sensor and the pressure sensor. According to the anti-floating bag type positioning grouting anchor rod for the underwater tunnel and the construction method of the anti-floating bag type positioning grouting anchor rod, the anti-floating bag type positioning grouting anchor rod is convenient to install and construct, the effect of preventing and treating a floating problem of the underwater tunnel is remarkable, and the anti-floating bag type positioning grouting anchor rod has wide engineering application prospects.

The invention discloses a device and a method for measuring pressure intensity of gas inside microspheres. The method includes: adopting a corrugated-pipe-type crushing mechanism to crush a to-be-measured microsphere and a calibration sphere in a vacuum shell; through air pressure change of the vacuum shell before and after crushing, calibrating volume of the vacuum shell, and accurately measuringpressure intensity of gas inside the microspheres. The device and the method are suitable for precision measuring of pressure intensity of gas inside large-diameter-range microspheres having no requirement on transparency and composition of microsphere shell layers and microspheres with adsorptive gas.

The technical scheme of the invention provides a chimney internal cylinder glass fiber reinforced plastic expansion joint which is characterized by comprising at least two parallel support spokes shaped like greater-than signs, wherein both ends of support spokes shaped like greater-than signs are fixed at the positions at both sides of a chimney shrinking seam on the inner wall of a chimney by nails; the peak positions of the support spokes shaped like greater-than signs are connected into a whole by a connecting wire; a support mesh is fixed at the outer sides of the support spokes shaped like greater-than signs and the connecting wire and comprises a steel wire mesh, a glass cloth fixed at the outer side of the steel wire mesh and a glass steel plate which is fixed at the outer side of the glass cloth and corresponds to the position between the support spokes shaped like greater-than signs and the connecting wire. The invention has a shrinking compensation function and the characteristics of seal, corrosion resistance, endurance and convenient construction.

The chain type telescopic hip joint exoskeleton comprises a waist skeleton used for surrounding the waist of a wearer, and the waist skeleton comprises a telescopic part and chain parts connected to the two ends of the telescopic part. The telescopic part comprises a telescopic sleeve, a telescopic plate and a locking assembly, wherein the telescopic plate is arranged in the telescopic sleeve in a sliding and penetrating mode, and the locking assembly is used for limiting the relative position of the telescopic sleeve and the telescopic plate. According to the arrangement, the overall length of the waist skeleton is adjusted by adjusting the relative position of the telescopic plate and the telescopic sleeve, the telescopic range is large, the telescopic range can be lengthened by lengthening the length of the telescopic plate, and the limitation of the telescopic overlapping length is avoided.

The invention discloses a pruning device capable of preventing cut branches from falling off for pear tree planting. The device comprises a driving chassis, a pruning rod, an electric saw, an electricbox and a control switch, wherein a device support is arranged on the upper part of the driving chassis, a first driving motor is arranged on the upper end of the device support, a rotating shaft ofthe first driving motor is connected with a rotating disc through a gear, one end of a connecting rod is hinged to the upper end face of the rotating disc, a first electric push rod is hinged to the middle of the connecting rod, the other end of the first electric push rod is hinged to the rotary plate, the other end of the connecting rod is hinged to the middle of the pruning rod, the tail end ofthe pruning rod is hinged to one end of a second electric push rod, the other end of the second electric push rod is hinged to the connecting rod, and a fixed clamp and a second driving motor are installed at the front end of the pruning rod. According to the device provided by the invention, the pruning process saves time and labor, the device is suitable for branches with different heights anddifferent thicknesses, falling of cut branches can be controlled, the cut branches can be conveniently cleaned out, and potential safety hazards are avoided.

The invention belongs to the technical field of acupoint injection treatment, and particularly discloses an acupoint injection device for treating trigeminal neuralgia. The device comprises a supporting frame, wherein the supporting frame is connected to a transverse supporting rod, the supporting rod is slidably connected to a sliding block, and two sides of the sliding block are respectively connected to an injection mechanism and a calibration mechanism; the injection mechanism comprises an adjusting shaft which is rotationally connected to the sliding block, a radial through hole which is arranged along the radial direction of the adjusting shaft, and an injector fixing cylinder which is slidably connected to the interior of the radial through hole, and the injector fixing cylinder is internally provided with an elastic ring capable of sleeving the injector and a step for blocking the elastic ring; and the calibration mechanism comprises a supporting shaft fixedly connected to the sliding block, wherein the supporting shaft and the adjusting shaft are coaxially arranged, the supporting shaft is rotatably connected to a calibration rod, the calibration rod is slidably connected to a telescopic piece, and the telescopic piece is connected to a calibration auxiliary rod. The device can achieve the effect of accurately reaching acupoint points when puncturing the body from different angles.

The invention discloses a ground embedded hidden structure of a shared wireless transmitting charger, which comprises a mounting ground groove. A protection base is fixed to the bottom of the mountingground groove, a telescopic fence is installed at the upper end of the periphery of the protection base, a protection cover plate is installed at the top of the telescopic fence, a transmittingplateis fixed to the bottom face of the protection cover plate, a lifting air bag is installed in the protection base, and a proximity switch is installed on the installation plate. Operation guide rails are embedded in the two sides of the upper end of the mountingground groove and provided with foreign matter removing scratching rods. Adrainage ditch is arranged below the mountingground groove, and water diversion channels are arranged on two sides of the mountingground groove. The mountingground groove is dug in the ground, the wireless charging equipment is integrally embedded into the mountingground groove or hidden in the mountingground groove, the external space is saved, and the attractiveness is good; and the foreign matter removing plate performs foreign matter removing and daily protection on the wireless transmitting plate, and is good in hiding effect, convenient to use and not prone to collision.

The invention discloses a ditch ecological water treatment method and aims to achieve the objects of high degree of automation, high efficiency, convenience in popularization, low cost, low energy consumption, low maintenance load, high efficiency and the function of overload prevention.. According to the technical scheme, aquatic plant collecting equipment is arranged in a ditch; the eutrophic water body is subjected to plant collection; the collecting equipment comprises a roller body; the roller body comprises a driving shaft, a first telescopic frame, a second telescopic frame connected tothe output end of the first telescopic frame and a plurality of aquatic plant collecting devices arranged at the output end of the second telescopic frame. The first telescopic frame comprises two input ends, which are movably connected and are connected to the driving shaft; shear pins are arranged at the two input ends of the driving shaft and the two input ends of the first telescopic frame. The invention belongs to the technical field of water environment treatment and ecological remediation.

The invention relates to a waist belt with telescopic clasp. It comprises: waist belt, one or more telescopic belts and a clasp. Wherein the telescopic belts are placed in the waist belt; one of its ends is fixed on the waist belt and the other end extends out of the through hole on the waist belt; and the clasp is connected on one of the telescopic belt's ends which extends from the through hole. The inventive waist belt can also comprise: waist belt, one or more telescopic belts and a clasp. Wherein the telescopic belts are placed in the waist belt and the two ends are separately extend out of two through holes on the waist belt, and on the two ends of telescopic belt are separately connected with clasps. By exploiting above technology scheme to set on or more telescopic belts in waist belt, staffs that need to be carried can stably connected on the clasps.