34results about How to "Increase telescopic length" patented technology

The present application discloses a telescopic retractor holder comprising a telescopic rod (10) with an inner tube (11), an outer tube (12) and a locking mechanism as well as a retractor rod (20). Said retractor rod has at its one end a retractor mounting (21), which is adapted for releasably gripping a retractor, and at its other end is fastened to the telescopic rod (10) by means of a jointed connection (30). The telescopic rod (10) can be supported on an operating table and has an actuating mechanism (15), by which the locking mechanism can be transferred from a first position, in which the inner tube (11) and the outer tube (12) of the telescopic rod (10) are held immovably in relation to one another, into a second position, in which the inner tube (11) and the outer tube (12) of the telescopic rod (10) are movable in relation to one another in the longitudinal direction of the tubes (11, 12).

The invention provides a multifunctional distribution pump truck which comprises a chassis, a stirring device, a feeding device, a pumping device, a distribution device and a hoisting device. A machine frame is arranged on the chassis; the stirring device is arranged on the machine frame and located at the rear end of the chassis; the feeding device is arranged on the machine frame and used for conveying materials into the stirring device; the pumping device is arranged on the chassis, a hopper of the pumping device is located below the stirring device, and the stirring device conveys the stirred materials into the hopper of the pumping device; the distribution device is arranged on a rotary table of the chassis, and a conveying pipe of the distribution device communicates with a discharge outlet of the hopper; and the hoisting device is connected with the distribution device and used for hoisting objects. The multifunctional distribution pump truck provided by the invention integrates hoisting, feeding, stirring, pumping and distribution functions, meets the requirement for automation of building construction of urban and rural areas, lowers the construction cost and improves the construction efficiency.

The invention relates to a concrete leveling machine. The concrete levelling machine comprises an engine base. The two sides of the engine base are provided with supporting seats. Telescopic rods are arranged on the supporting seats. The front portions of the telescopic rods are provided with levelling machine heads. The engine base is provided with a driving device used for driving the telescopic rods to move. By arranging the two telescopic rods on the engine base, the problem of flexibility deformation of a single telescopic rod is solved, and the telescopic length of the telescopic rods is greatly lengthened. Due to the fact that the two telescopic rods support the levelling machine heads, the torsion stability of the levelling machine heads is good, the working width of the levelling machine heads is greatly lengthened, and therefore the levelling efficiency of the levelling machine is greatly improved.

Provided are an automatic drill pipe mounting and dismantling device and an engineering drilling machine. The drill pipe mounting and dismantling device includes a drilling machine base, a drilling machine platform rotatably arranged on the drilling machine base, a drill pipe tray, a tray lifting mechanism and a tray inclination angle adjusting mechanism, wherein the drilling machine platform is provided with a drill pipe to be mounted or dismantled, a pusher and a mounting and dismantling drill pipe transfer channel for transferring or moving out the mounted or dismantled drill pipe. The traylifting mechanism drives the drill pipe tray to transfer the mounted or dismantled drill pipe to be or from between the drill pipe to be mounted or dismantled and the pusher. The tray inclination angle adjusting mechanism includes a telescopic push rod with the two ends rotatably connected with the drilling machine base and the drill pipe tray respectively, the telescopic push rod drives the drill pipe tray to rotate, so that the inclination angle of the mounted or dismantled drill pipe is matched with the inclination angle of the drill pipe to be mounted or dismantled and the inclination angle of the pusher. The problem that the free end of a rocking arm of an existing engineering drilling machine has a high load and is damaged easily, the thrust and stroke length of a bracket adjustinghydraulic cylinder are limited, exploiting work can only be performed on an inclined coal layer with a small inclination angle, and the application range of the drill pipe mounting and dismantling device is limited are solved. The automatic drill pipe mounting and dismantling device has the advantages of being simple in structure, high in drill pipe mounting and dismantling efficiency and precise,and the posture of the drill pipe including the drill pipe tray can be adjusted randomly flexibly according to the design length of a hydraulic telescopic push rod.

The invention provides a linear superposed large scope fast telescopic device. The device comprises a pedestal and at least two stages of slide blocks. A gear which is located in the pedestal and connected with a motor drives the slide blocks to slide. The slide blocks are stacked on the pedestal stage by stage. The linkage relationship between the slide blocks is formed through meshing of gears and racks of the upper and lower stages of slide blocks. According to the telescopic device, different extension-and-retraction amount and different extension-and-retraction speed can be obtained by selecting the quantity of the stacked slide blocks. The extension-and-retraction directions of all stages of slide blocks are identical. The extension-and-retraction amount can be decided by the number of stages of the slide blocks. The linear linkage telescopic device overcomes the structural instability caused by the situation that in the prior art, power equipment needs to extend or retract with the device, and accordingly the position of the power equipment is changed. Through keeping the power equipment in an unchanged position of the fixed pedestal, because of the linkage relationship between the upper and lower stages of slide blocks, the power is transmitted and outputted to each stage of slide block, thus not only the precise control of the extension-and-retraction amount can be achieved, but also at the same time, the stability of the whole device is maintained.

The invention relates to the technical field of an earphone line material, and particularly relates to an improved elastic earphone line. The improved elastic earphone line comprises an elastic core line, a conductive layer woven on the surface of the elastic core line, and an elastic insulating protective layer arranged on the surface of the conductive layer in a sleeving manner, wherein the conductive layer is an elastically-telescopic net-shaped pipe woven by a varnished wire; and the elastic core line is prepared from the following components of SEBS, paraffin oil, silicone oil, PP, EPDM, P0E, PE, TPV, calcium carbonate, erucic acid, stabilizer and a stabilizing agent. By filling a co-mixture of PP / filling oil / SEBS with a toughening filler, the plastic is endowed with excellent elasticity; after the plastic is mixed with the paraffin oil for use, a synergistic effect is generated to endow the improved elastic earphone line with excellent elasticity; and in addition, the earphone line product prepared from the elastic core line can be excellent in flexibility and relatively long in extension length, so that the service life and the use effect of the earphone line can be prolonged and improved.

A movable intelligent telescopic audio system includes a speaker box, a telescopic rod mechanism and a base mechanism. The fixed clamping connection between the pipe fittings is realized by means of a buckle and a spring top ball. Working together, the telescopic action of the multi-section rod can be realized, the telescopic length of the overall telescopic rod mechanism is improved, and the sound can be raised to a higher distance from the ground, so that the sound of the speaker can be better diffused, and the efficiency of the speaker is greatly improved. The combination of the universal wheel, the braking device and the retractable skateboard makes the sound more convenient to adjust and fix the position, and at the same time increases the force range of the base mechanism, improves the stability, the overall operation is simple and convenient, and it is easy to spread and popularize.

The invention discloses an intelligent snow remover. The intelligent snow remover is used for accumulated snow sweeping and comprises guide rails, moving mechanisms, pressure sensors, telescopic devices, accumulated snow conveying devices and a controller; the moving mechanisms are arranged on the guide rails and move on the guide rails in the X direction, the Y direction and the Z direction, anda snow clearer is further arranged at the lower end of the guide rail in the Z direction; the moving mechanisms move on the guide rails to drive the snow clearer to sweep accumulated snow on a workingface, the accumulated snow conveying devices are arranged below the working face, and the accumulated snow conveying devices are connected with the telescopic devices; conveying belts are arranged inthe accumulated snow conveying devices, the conveying belts complete conveying of the accumulated snow, and the pressure sensors are arranged below the working face; the snow is cleared into snow containing frames on the accumulated snow conveying devices, and then the snow is treated in a centralized mode; and the intelligent snow remover further comprises the moving mechanisms, and the moving mechanisms can drive the snow remover to move. According to the intelligent snow remover, the accumulated snow can be efficiently and conveniently cleared.

The invention relates to a multi-functional clamping and stacking disc machine, comprising a frame body, a lifting carrier arranged inside the frame body, and a tray positioning device arranged at the bottom of the frame body, the lifting carrier is arranged above the tray positioning device, and the lifting carrier There is a lifting device for driving the lifting carrier to move up and down between the two sides and the main body of the frame. A telescopic fork is installed on the lifting carrier, and a gripping device is installed on the telescopic fork. Outside the frame body or inside the frame body. The clamping device of the present invention is installed on the telescopic fork, expands and contracts with the fork, realizes the splitting and stacking of the pallet inside and outside the frame body, can be applied to various scenarios, and improves work efficiency; the telescopic arm adopts two pieces that can move freely The first arm plate is driven by the second wall plate to move when stretching, which greatly increases the telescopic length of the telescopic arm and increases the palletizing range of the pallet.

The invention discloses a double-support-legs nested detachable node for assembled type supporting and a construction method thereof, and belongs to the technical field of construction auxiliary workpieces. The main principle of the double-support-legs nested detachable node is the decomposition of force under static stress balance, the double-support-legs nested detachable node is mainly used foradjusting the supporting length of the assembled steel support and exerting and bearing the pre-axial force. The double-support-legs nested detachable node is composed of a wedge-shaped body, a clamping plate, a sliding base, an end plate, a jack tray and a high-strength bolt. The device is under the combined action of three sets of high-strength bolts, and clamping is carried out after the two symmetrical clamping plates and the wedge-shaped body are nested in an arc-shaped protruding mode through the wedge-shaped body, so that the purpose of controlling the deformation of the foundation pitis achieved by bearing and transmitting the axial force of the assembled steel support. According to the device, the stress is uniform, the bearing performance is good, the rigidity is large, the stability is high, the overall performance is good, the spare part is not needed, the quality control is good, the application is convenient and rapid, repeatedly use can be achieved, the device is an efficient and safe construction device for adjusting the length of the steel support and bearing the axial force.

The invention belongs to the technical field of agricultural machinery and equipment, and discloses a fruit tree canopy radial dynamic profiling target spraying robot and its profiling target target method, including a crawler-type power platform, and the power platform is fixedly connected with an organic frame, the frame is fixedly connected with a medicine box, a controller and a target spraying mechanism, the target spraying mechanism includes a spray head, and a pressure pump is arranged in the medicine box, and the pressure pump communicates with the spray head, Beidou navigation system and laser radar are installed on the power platform, a runoff fan is fixedly connected to the frame in front of the power platform, and the target spraying mechanism is installed on the frame in front of the power platform. The invention adopts a follow-up two-degree-of-freedom profiling target targeting mechanism, which is flexible in movement, and can spray the radial profiling target spraying of tree crowns of any size under the precise fixed spraying distance.

The invention relates to a boom system for a crane, in particular a mobile crane, comprising at least one telescopic main boom and at least one fly jib that can be bolted to a telescopic length of the main boom. When retracted, the telescopic length receiving the fly jib can be bolted to at least one surrounding telescopic length.

The embodiment of the invention discloses a multi-stage hydraulic multiplying pulley vertical lifting platform fire truck, which belongs to the technical field of fire fighting and rescue equipment, and includes a car chassis, the tail of the car chassis is hingedly equipped with a telescopic arm, and the top end of the telescopic arm is A slewing platform is provided, and a working arm is installed on the slewing platform, and a working bucket is installed on a section of the working arm; Front hydraulic outriggers are installed on the left and right sides, and rear hydraulic outriggers are installed on the left and right sides of the telescopic arm away from the cab of the car. The chassis of the car is provided with an auxiliary support oil cylinder. Each is equipped with a transitional hydraulic cylinder. The invention solves the technical problems that the maximum rescue radius of the existing high-altitude fire truck is small, and the maximum rescue height is greatly limited by the transmission form of the hydraulic oil cylinder, and is widely used in high-altitude fire fighting or rescue.

The utility model relates to an engine cavity shell mold soil knocking hammer, which relates to the technical field of tools for removing engine cavity shell mold soil, and comprises a cavity shell on which a knocking mechanism is reciprocally slidably installed. The invention solves the problem of fast separation of the sand mold and the cavity shell in the traditional technology, but ignores the different influences on the cavity shell due to the different operation skills of each operator; it ignores the fact that when the sand mold is peeled off, it is easy The effect of impact on the surface of the chamber shell; and the irregularity of the shape of the limited chamber shell make the problem of operator technical requirements even greater.

The invention discloses an intelligent take-out cabinet for automatic access, which includes an intelligent touch screen, a temperature control box, a reflow box and a storage cabinet. The storage cabinets are arranged in multiple groups in a linear arrangement, and the intelligent touch screen is arranged on the side of the storage cabinet. On the right side, the left side of the storage cabinet is provided with a reflux box and a temperature control box in turn to the left. The reflux box and the temperature control box are connected through pipelines. The upper and lower ends of the storage cabinet are equipped with a top plate and a bottom plate. The inside of the bottom plate is laid with an air flow duct connected to the storage room in the storage cabinet. The air flow channel in the top plate is connected to the upper air inlet on the right side of the return box through the air intake pipe, and the air flow channel in the bottom plate is connected to the return box through the return pipe. The return port at the lower end on the right is connected, and the temperature and humidity inside each group of storage rooms are regulated by the intelligent touch screen.

The invention provides a multifunctional distribution pump truck which comprises a chassis, a stirring device, a feeding device, a pumping device, a distribution device and a hoisting device. A machine frame is arranged on the chassis; the stirring device is arranged on the machine frame and located at the rear end of the chassis; the feeding device is arranged on the machine frame and used for conveying materials into the stirring device; the pumping device is arranged on the chassis, a hopper of the pumping device is located below the stirring device, and the stirring device conveys the stirred materials into the hopper of the pumping device; the distribution device is arranged on a rotary table of the chassis, and a conveying pipe of the distribution device communicates with a discharge outlet of the hopper; and the hoisting device is connected with the distribution device and used for hoisting objects. The multifunctional distribution pump truck provided by the invention integrates hoisting, feeding, stirring, pumping and distribution functions, meets the requirement for automation of building construction of urban and rural areas, lowers the construction cost and improves the construction efficiency.

The invention provides a temperature control sliding rod based on a honeycomb type memory alloy structure, and belongs to the field of aerospace. The problem of assembling error accumulation in the on-orbit construction process of a large-scale space truss structure based on part materials and the problem that the form of the truss structure needs to be changed are solved. The temperature control sliding rod comprises a signal receiver, a battery pack, a temperature control sheet, a honeycomb type memory alloy and a shell, the shell comprises an inner shell body and an outer shell body, the inner shell body is connected in the outer shell body in a nested manner, the signal receiver, the battery pack and the temperature control sheet are all arranged in the outer shell body and connected with the outer shell body, the battery pack is respectively connected with the signal receiver and the temperature control sheet and supplies power to the signal receiver and the temperature control sheet, the signal receiver is in communication connection with the temperature control sheet, the honeycomb type memory alloy is arranged in the inner shell body, one end of the honeycomb type memory alloy is connected with the temperature control sheet, and the other end of the honeycomb type memory alloy is connected with the inner shell body. The temperature control sliding rod is mainly used for a large-scale space truss structure.

The invention discloses a portable escape anti-theft window which comprises a window body; the side walls of the left inner side and the right inner side of the window body are respectively connected with a left toggle and a right toggle through at least one hinge; a plurality of ladder-shaped components are arranged between the left toggle and the right toggle; the ladder-shaped components are inclined and every two components are mutually connected; an upper cross rod of the window body is connected with one end of a straight bar, the other end of the straight bar is connected with one end of a first ladder-shaped component on the uppermost end and is movably connected on the right toggle, the other end of the first ladder-shaped component on the uppermost end is connected with one end of a second ladder-shaped component and is movably connected on the left toggle, the other end of the second ladder-shaped component is connected with one end of a third ladder-shaped component and ismovably connected on the right toggle and so on, and every two adjacent ladder-shaped components are connected through the method. The portable escape anti-theft window has the advantages of novel structure, simple manufacturing, low cost, convenient use, safety and high efficiency.

The invention relates to a concrete leveling machine, which comprises a chassis, and support bases are respectively arranged on both sides of the chassis, and telescopic rods are arranged on the support bases, and a leveling machine head is arranged on the front part of the telescopic rods, so that The chassis is provided with a driving device that drives the movement of the telescopic rod; two telescopic rods are set on the chassis, which solves the problem of deflection and deformation of a single telescopic rod, greatly prolongs its telescopic length, and supports the leveling machine head through two telescopic rods , Its torsional stability is good, and its working width can be greatly extended, thereby greatly improving the leveling efficiency of the leveling machine.