258results about How to "With telescopic function" patented technology

The invention discloses a four-rotor aircraft provided with telescopic and foldable undercarriages. The four-rotor aircraft comprises an aircraft body, four rotor arms and four rotors, wherein the four rotor arms and the aircraft are combined into a cross-shaped structure; the four rotors are arranged on the four rotor arms respectively; grooves are formed in the lower surfaces of the rotor arms; the undercarriages are arranged in the grooves; each undercarriage comprises a hollow main body, a telescopic body, a driving motor and a lead screw; the driving motor and the lead screw are arranged in the hollow main body; one end of the main body is hinged to each rotor arm; one end of the telescopic body extends into the main body from the other end of the main body; the driving motor is used for driving the lead screw to rotate positively or negatively; the lead screw is used for driving the telescopic body to extend outwards or retract inwards along a cavity in the main body; the undercarriages in retraction states can be rotationally folded in the grooves. As the undercarriages have not only telescopic functions but also foldable functions, when the aircraft is positioned on the ground, the height of the aircraft body can be adjusted, and conveniences are brought to daily maintenance work.

The invention provides a telescopic crossed yoke fluorescent magnetic powder inspection machine. A crossed yoke comprises a fixed yoke parallel to the surface of a workpiece to be tested and a moving yoke perpendicular to the surface of the workpiece to be tested, the moving yoke passes through a sliding bushing and is in sliding connection with the fixed yoke, and the moving yoke is provided with a pressure spring. The invention successfully realizes that each magnetic pole of the magnetic powder inspection machine has telescopic function so as to closely contact the workpiece by dividing the crossed yoke into the fixed yoke and the moving yoke, thereby guaranteeing the magnetic-field intensity during the fault detection. The magnetic powder inspection machine is also provided with a CCD image acquisition device, and realizes the program control of working procedures of feeding, magnetization, CCD observation and discharge as well as on-line detection monitoring and automatic fault detection through the program control operation of a PLC.

The invention discloses an extensible and retractable inner supporting tool. One end of a left-handed screw is installed in a screw installation hole in the plane geometric center of a supporting plate, and the left-handed screw is in rotating fit with the screw installation hole. A left-hand thread at the other end of the left-handed screw is installed in a threaded hole in the center at one endof a sleeve. One end of a right-handed screw is installed in a screw installation hole in the plane geometric center of the other supporting plate, and the right-handed screw is in rotating fit with the screw installation hole. A right-hand thread at the other end of the right-handed screw is loaded in a threaded hole in the center at the other end of the sleeve. The extensible and retractable inner supporting tool has extending and retracting functions; in a shortened state, the extensible and retractable inner supporting tool can be put into a shell and then extends to support a cylinder, rigid restraining to the cylinder is achieved, and the welding deformation is reduced; and by means of stress relief annealing heat treatment through the belt tool, deformation stress is eliminated, andtherefore the cylinder circular degree after welding is guaranteed, and the circular degree of the shell is reduced to 2.5 mm from 10 mm.

The invention discloses contactless intelligent self-service license photographing equipment and method. The equipment comprises a chassis, an input/output module, a photographing module and an intelligent module, wherein the chassis comprises a fixed module and a scalable module, the fixed module is connected with the scalable module by virtue of a scalable part, the input/output module is arranged on the fixed module, the photographing module and the intelligent module are arranged in the fixed module, and the intelligent module is respectively connected with the photographing module and theinput/output module; and the photographing module comprises a camera module and a mobile module, and the mobile module is used for driving the camera module to move. The contactless intelligent self-service license photographing equipment and method which are disclosed by the invention can realize that hands of a user are free in a photographing process, photographing can be completed without keyor contact, an automatic photographing process is convenient and simple, industry intelligentization requirement in new times is met, and support is provided for the development of intelligent citiesand intelligent life.

The invention belongs to the field of tunnel secondary lining laying and relates to a secondary lining laying process ensuring the secondary lining strength, in particular to a tunnel geotextile, waterproof cloth and secondary lining steel bar laying process. The secondary lining strength is ensured by ensuring the thickness of a concrete protective layer.

The invention discloses a crane support leg. The crane support leg comprises a first level horizontal support leg, a second level horizontal support leg and a fixed support leg, wherein the second level horizontal support leg is sleeved on the first level horizontal support leg, and the first level horizontal support leg is sleeved on the fixed support leg; the crane support leg is characterized in that: a first horizontal oil cylinder is arranged between the first level horizontal support leg and the fixed support leg, and a second horizontal oil cylinder is arranged between the second level horizontal support leg and the first level horizontal support leg. The crane support leg has relatively high strength in a half-stretching state, and can obviously improve the hoisting performance of the whole crane. The invention further discloses a support leg hydraulic system for controlling the crane support leg, and a crane provided with the crane support leg.

The invention discloses a portable telescopic spherical throwing detection robot which comprises a stander, a left driving wheel, a right driving wheel, a telescopic system and a control system, wherein the left driving wheel and the right driving wheel are fixed at both ends of the stander respectively; the telescopic system is used for stretching and contracting the left driving wheel, the right driving wheel and a supporting tail, and is arranged on the stander; and the control system is fixedly connected with the center of the stander. The robot has a certain pretending property during folding, so that the robot cannot be perceived easily; a wheel housing of the robot has a shock absorption property, so that the robot can bear impact of several-meter free fall; and the portable telescopic spherical throwing detection robot can be applied to detection and acquisition of information in dangerous environments.

The invention discloses a driving device for cement pipeline making and a middle connecting mechanism of a cement pipeline. The driving device and the middle connecting mechanism comprise a bottom fixing base plate, and multiple bolt holes used for being connected are formed in the bottom fixing base plate; three threaded adjusting mechanisms which are arranged in an annular array mode are installed on the upper surface of the bottom fixing base plate, and the top parts of the multiple threaded adjusting mechanisms are installed at the bottom part of a bottom supporting base block through hinges; and the top part of the bottom supporting base block is provided with an outer shaft sleeve. According to the driving device and the middle connecting mechanism, an internal contact type method isused for carrying out the connection function of rotary parts so that the synchronous rotation effect can be realized, and the effective rotation rate of a motor is improved; in addition, the devicecan achieve disengagement under an emergency condition, so that the phenomenon that the motor is damaged due to too large driving force or lower current of the motor is effectively prevented; and thedevice is provided with an air power telescopic mechanism, so that the abutting effect with a telescopic function is realized by utilizing air power, and the practicability is high.

The invention relates to a nondestructive testing device of formaldehyde emission from furniture product and a nondestructive testing method thereof. The nondestructive testing device comprises an adjustable telescoping bracket, the bracket is externally covered with a PVC film, and seal plates are arranged between two adjacent telescoping bracket feet for compressing the PVC film to form airtight space inside the PVC film. The nondestructive testing method comprising the following steps: (1) the to-be-detected product is arranged in the airtight space formed by the PVC film, the telescoping bracket and the seal plates; (2) an absorption vessel with distilled water is arranged right below the to-be-detected product for 8-12 hours; (3) the absorption vessel is taken out, and acetylacetone spectrophotometry is carried out on the absorption liquid inside the vessel to detect the concentration of formaldehyde. The nondestructive testing device has the advantages of reasonable structure, low manufacture cost and strong adaptability; can be adjusted according to the volume and shape of the furniture product, and can obtain the formaldehyde emission data of furniture product without destroying furniture product; in addition, the nondestructive testing device has good reproducibility of testing results, and can actually reflect the formaldehyde emission condition in practical use.

The invention discloses a curtain wall cleaning robot control system and method controlled by a microcontroller and belongs to the field of climbing robots. According to the curtain wall cleaning robot control system and method, an internal attachment walking mechanism and an external attachment walking mechanism are alternately attached to a curtain wall, so that a curtain wall cleaning robot horizontally and vertically moves, the curtain wall cleaning robot turns freely by using rotation movement of the internal attachment walking mechanism, and 360-degree all-dimensional movement is achieved; meanwhile, adhesive discs in the internal attachment walking mechanism and the external attachment walking mechanism have the extending and retracting functions, and the curtain wall cleaning robothas good obstacle crossing function and can be suitable for a frameless glass curtain wall and a frame glass curtain wall; according to the curtain wall cleaning robot control system and method, by using a microcontroller program and a control circuit, a motor and a magnetic valve in the curtain wall cleaning robot are subjected to logic control so that the curtain wall cleaning robot can executemovements such as cleaning, walking, turning and obstacle crossing according to operation commands, and the curtain wall cleaning robot is operated flexibly and conveniently, is stable and reliable,and improves the working efficiency and cleaning effect.

The invention relates to a multi-function cutting machine. The multi-function cutting machine includes a cutting work table, a cutter assembly used for cutting a plate to be cut, wherein the cutter assembly is slindingly mounted on a guiding rod in a matched mode, the tail end of a cutter fixing column is hinged to a cutter with extensible function, a first connecting block is rotatably connectedwith the upper end surface of the cutting work table through a pin shaft, a second connecting block is locked in the screw holes of the cutting work table through locking bolts, one side of the upperend surface of the cutting work table is fixedly connected with a clamped clamping body used for clamping the edge of one side of the plate to be cut, at least two rectangular grooves are formed in the upper end surface of the cutting work table, clamping parts for clamping the edge of the other side of the plate to be cut are arranged on a sliding rod in a sliding mode, and an adjusting part foradjusting the height and the inclination angle of the cutting work table is arranged at the lower end of the cutting work table. According to the multi-function cutting machine, stability of positioning, accuracy of cutting and the application range of using are improved, the operation is convenient for workers, and the multi-function cutting machine is applicable to cutting plates with a certainthickness range and a certain size range.

The invention relates to a supporting stand of a wind-velocity indicator, which is formed by six telescopiform steel pipes through an installable/detachable connecting mode, wherein the six telescopiform steel pipes comprises a horizontal main rod, a vertical main rod, a horizontal left brace rod, a horizontal right brace rod, a vertical lower brace rod and a vertical upper link, wherein the horizontal main rod is fixed on the outer side of the supporting stand in a horizontal plane, the horizontal left brace rod and the horizontal right brace rod are connected on the extended end of the horizontal brace rod to improve the stability of the main rod in the horizontal plane, the vertical main rod is vertical to the extended end of the horizontal main rod in the vertical plane, the vertical lower brace rod is arranged on the lower portion of the horizontal brace rod, a measured structure and the horizontal main rod are connected, the vertical upper link is arranged on the upper portion of the horizontal main rod, and the measured structure and the horizontal main rod are connected to improve the stability of the main rods in the vertical plane. The supporting stand of a wind-velocity indicator must have wide prospect in engineering application as wind characteristic tests are regarded in the whole world.

The invention discloses a history and ideological and political teaching demonstration board with a multidirectional demonstration function. The history and ideological and political teaching demonstration board comprises a supporting base, a straight plate, a demonstration board body and a telescopic rod. A first supporting shaft is arranged in the supporting base and penetrates the supporting base, the first supporting shaft is connected with the supporting base through balls, a limiting shaft is mounted in the first supporting shaft, a connection shaft is arranged on the top surface of thelimiting shaft and penetrates the first supporting shaft, the connection shaft is provided with a limiting hole which is connected with a limiting rod, and the limiting rod penetrates a collection groove. The history and ideological and political teaching demonstration board has advantages that operating personnel can adjust the height of the demonstration board by pulling the limiting rod, and accordingly the demonstration board can be conveniently and appropriately adjusted according to onsite conditions to make it convenient for audiences to watch information recorded on the demonstration board.

The invention discloses a detection device for material picking of a mechanical arm. The detection device comprises a support frame arranged on one side of the mechanical arm, wherein the support frame is provided with a stacking detection mechanism which comprises a first linear guide rail arranged on the support frame, the first linear guide rail is connected with a first sliding block mounting base which is controlled to slide by a first driving air cylinder, at least one guide pillar is arranged on the first sliding block mounting base, each guide pillar is sleeved with a linear bearing which is connected with a floating detection board, one end of the floating detection board is provided with a bevel, and the lower end of the floating detection board is connected with a thickness detecting gauge for identifying the thickness of the picked material. The detection device can detect whether stacked workpieces are picked by the mechanical arm, and also can automatically separate the materials; and the whole structure is simple and intelligent.

The invention relates to the technical field of shoemaking molds, and provides a multicolor EVA injection mold which is suitable for the conventional single-color EVA injection machine, and can be used for producing double-color or multicolor EVA finished products. The multicolor EVA injection mold comprises a lifting board, a backing board, a sealing board, an upper mold, a middle board and a lower mold which are arranged from the top down in sequence, wherein mold cavities are formed in both the opposite sides of the upper mold and the lower mold; a sprue communicated with the mold cavity of the upper mold is formed in the upper mold; the middle board is arranged between the upper mold and the lower mold in a drawable manner; the lifting board and the sealing board are connected with each other through a suspension structure which can expand and contract in the thickness direction of the lifting board; an accommodating cavity with an open-close function is formed between the lifting board and the sealing board through the suspension structure; the backing board is arranged in the accommodating cavity in a drawable manner.

The invention discloses a novel grounding wire and relates to the field of power construction. The novel grounding wire structurally comprises a wheel 1, a frame 2, a push-pull rod 3, a grounding bar 4, a shell 5, a wire wheel 6, a grounding drill rod 7, a pressing block 8, a bearing 9, a brake bar 10, a support rod 11, a spring 12, an indicator lamp 13, a lead C 14, a clamping part A 15, a clamping part B 16, a power supply 17, a soft copper wire A 18 and a soft copper wire B 19. The novel grounding wire has the advantages that that sequence errors can be avoided, personal accidents can be avoided, the indicator lamp is arranged on the grounding bar (4), the indicator clamp can only be turned on when the grounding bar (4) is firmly hooked to a metal component, an operator can accurately judge the position of the grounding wire conveniently, and the personal safety of the operator is protected; the flat spiral spring is arranged between the wire wheel (6) and a shaft, a telescoping function is achieved, and work efficiency is increased.

The invention relates to an antenna, particularly to an antenna device for portable data acquisition terminals. The antenna device for portable data acquisition terminals comprises a card reading coil arranged in the case of a top reading head connected to one end of a pull rod, the other end of the pull rod is connected to a handle provided with a card reading circuit, the pull rod is provided with a wire connecting the card reading coil and the card reading circuit, the card reading circuit is connected to a plug through a data wire. According to the invention, the acquisition of distant articles is convenient, the inference from surrounding conductors and circuits in the acquisition terminal is reduced, the reading distance is increased, and the reading performance is improved. Besides, the device has telescopic function, is portable and suitable for miniaturization of portable data acquisition terminals.

The invention belongs to the field of plate processing, and particularly relates to a plate cutting device capable of achieving automatic stabilization and self-cleaning. The plate cutting device comprises a workbench, two symmetrically-arranged placement blocks are fixedly connected to the workbench, a support is fixedly connected to the workbench, two symmetrically-arranged reciprocating lead screws are rotatably connected to a portion between the support and the workbench, sleeves are connected to the reciprocating lead screws in a threaded manner, and a frame is fixedly connected to a position between the two sleeves. According to the plate cutting device capable of achieving automatic stabilization and self-cleaning, through cooperation of a first linkage mechanism, a second linkage mechanism and a driving mechanism, a cutting knife and a pressing plate can be matched with air suction fan blades to synchronously work, and therefore it is guaranteed that the pressing plate presses a wood board in the cutting process, the wood board is kept stable, and manpower consumption is avoided; and meanwhile, in the cutting process, chippings generated by air suction of the air suction fan blades can be utilized, and therefore the situation that the chippings fly randomly and pollute the surrounding environment is avoided.

The invention discloses a cable bridge for network engineering. The cable bridge comprises a cable bridge main box body; a top cover is arranged on the top of the cable bridge main box body; mountingclamping blocks are mounted at the two ends, close to one side of the cable bridge main box body, of the top cover respectively; and the mounting clamping blocks are mounted on the top of the cable bridge main box body. The cable bridge has the beneficial effects that layers are arranged in the cable bridge, and a plurality of segmentation assemblies are arranged on each layer; the cutting component can be used for installing each cable, so that the cables are not in contact with each other, winding can be avoided between the cables, and the safety of the lines can be guaranteed, the heat dissipation of the cables is accelerated, and the service life of the cables is prolonged; a limiting assembly has a telescopic function, so that the range of the diameter of the cables capable of being installed by the segmentation assemblies can be expanded, the cables with any thickness can be installed in each segmentation assembly, and the practicability and universality of the segmentation assemblies are improved.