38results about How to "Adjustable extension length" patented technology

The invention provides an alloy coated copper wire with high performance and low cost and a production method thereof. The electric conductivity, thermal conductivity, solderability, ductility, tensile strength, high temperature resistance, high-frequency property, corrosion resistance and vulcanization resistance of the obtained product are equivalent to those of a silver-coated copper wire, and the tin-indium alloy coated copper wire also has the advantages of uniform coating thickness, bright and clean appearance, good adhesiveness and the like; the energy consumption and the pollution are low in the production process. The tin-indium alloy coated copper wire comprises an oxygen-free copper wire core, and a tin-indium alloy coating is coated by using a tin-indium alloy material containing 0.8 per mill of tin outside the oxygen-free copper wire core. The invention further provides a production method for the tin-indium alloy coated copper wire, comprising the steps of making a copper bar, drawing, cleaning the surface, annealing, cooling, cleaning, washing with acid, carrying out hot-tinning and the like.

The invention relates to a medical internal medicine liquid pumping device, which relates to the field of medical instruments. The device comprises a bottom plate, a liquid pumping structure and a puncture needle, a supporting column is arranged on bottom plate, the supporting column is provided with an L-shaped rod, the L-shaped rod is provided with a transverse groove, the transverse groove is provided with a polygonal rubber sleeve, the polygonal rubber sleeve is provided with a polygonal sliding rod; the polygonal sliding rod is provided with a sliding rod; the polygonal sliding rod is provided with a fixing bolt; the sliding rod is provided with an angle adjusting structure, the angle adjusting structure comprises a threaded rod, a sliding block, an arc-shaped clamping plate, a convexblock, a disc, a rotating rod and a mounting block; rotating rod is equipped with the mounting block, the disc is equipped with the rotating rod, a positioning structure is equipped with the mountingblock, the disc is provided with a protruding block, the protruding block is provided with a threaded rod, the threaded rod is provided with the sliding block, the sliding block is provided with an arc-shaped clamping plate, and the arc-shaped clamping plate is provided with a holding ring, the puncture needle is arranged in holding ring and provided with a hose, and hose is provided with liquidpumping structure. According to the device, the puncture needle can be conveniently and stably clamped, medical staff do not need to hold the puncture needle during liquid pumping, the puncture stability is guaranteed, and a patient is better protected.

The invention discloses a high-stability adjustable dual-conical-tooth differential gear. The high-stability adjustable dual-conical-tooth differential gear comprises an input part, a differential mechanism and two output shafts which are coaxially fixed to two axle shaft gears of the differential mechanism in a one-to-one corresponding mode; the input part is in meshed transmission with a differential body of the differential mechanism through two bevel gear pairs in mirror symmetry, and a limiting base for limiting driving wheels of the two bevel gear pairs in the radial direction is arranged on an outer shell of the differential mechanism. According to the high-stability adjustable dual-conical-tooth differential gear, as the input part is in meshed transmission with the differential body of the differential mechanism through the two bevel gear pairs in mirror symmetry, and the axial component force can be offset through driven wheels of the two bevel gear pairs, the axial stress balance of the differential body can be guaranteed, the structure stability of the driving wheels and corresponding wheel shafts is improved, running of the differential mechanism is facilitated, and the service life is prolonged.

The invention provides a back connecting device for a lower limb rehabilitation robot. The back connecting device comprises a bottom layer structure connected with the lower limb rehabilitation robot,a middle structure arranged in the bottom layer structure and capable of moving up and down, a connecting structure installed on the middle structure, an upper backrest structure and a lower backreststructure, wherein the upper backrest structure and the lower backrest structure are arranged on the side, away from the bottom layer structure, of the connecting structure, and the extending lengthof the upper backrest structure and the extending length of the lower backrest structure are adjustable. A lead screw is vertically arranged in the middle of the bottom layer structure, a worm and gear pair is arranged on the top of the lead screw, a first worm gear is coaxial with the lead screw, a worm is perpendicular to the lead screw, first hand wheels are arranged at the two ends of the worm, the lead screw is provided with a moving block matched with the lead screw in a sleeving manner, and the middle structure is fixedly connected with the moving block. The problems that a left leg fixing mechanism and a right leg fixing mechanism of the lower limb rehabilitation robot are not flexible in up-down and left-right adjustment, and the supporting positions of the backrest structures areinconvenient to adjust are solved.

The invention discloses a bottle opener with a safety protection structure. The bottle opener comprises a supporting rod, a transverse rod and lock cover rings. A sliding groove is formed in the surface of the supporting rod, and a handle is welded to the left side of the supporting rod. A cotton sleeve is fixed to the middle of the handle. A support rod is welded to the left side of the transverse rod, and the transverse rod is located above the supporting rod. A fixing sleeve is fixed to the right side of the transverse rod, and a screw is arranged in the middle of the fixing sleeve. A supporting block is welded to the lower portion of the support rod. A rotation joint is arranged on the right side of the supporting block. A connecting rod is arranged in the middle of each lock cover ring, the lock cover rings are located on the right side of the rotation joint, and pressing teeth are welded to the inner walls of the lock cover rings. Extension springs are arranged between the lock cover rings. A bottle sleeving ring is arranged below the lock cover rings, and a connecting spring is arranged in the middle of the bottle sleeving ring. The bottle opener with the safety protection function is high in universality and is suitable for being used by bottled cans with different bottle cap sizes, and labor is saved during using; and the protection structure is arranged, and hurting is avoided accordingly.

The invention relates to a switch overshoot preventing device and a high-voltage switch using the device. The anti-overshoot device of the switch includes an input transmission part, an output transmission part and a clutch device between the input transmission part and the output transmission part. The trip pin at the opposite end, the trip pin is guided and assembled in the open slot, the sleeve is rotatably and axially locked on the connecting frame, and the output transmission part includes a wire that is connected to the output shaft in a non-rotational manner. The rod and the axially moving screw nut assembled on the lead screw. The connecting frame is provided with an opening stop structure and a closing stop structure respectively corresponding to the opening position and closing position of the switch. Between the brake stop structure and the closing stop structure, during the moving process, the nut part pushes the opening stop structure or the closing stop structure to make the release pin on the corresponding shaft escape from the open slot.

The invention discloses an electromagnetic type vibration energy collector based on a Halbach array. The electromagnetic type vibration energy collector based on the Halbach array comprises a fixed fastening base I, a movable fastening base II, a cantilever beam I, a cantilever beam II, the Halbach array, a square frame and an electromagnetic transducer, wherein the fastening base I and the fastening base II are correspondingly arranged; one end of the cantilever beam I is arranged on the fastening base I, and the other end of the cantilever beam I is provided with the square frame; the Halbach array is arranged in the square frame; one end of the cantilever beam II is arranged on the fastening base II, and the other end of the cantilever beam II is provided with the electromagnetic transducer; the electromagnetic transducer is located in a magnetic field of the Halbach array. The electromagnetic type vibration energy collector has the advantages of being simple in structure, sensitive in induction, small in overall size, high in induced voltage and output power and the like.

The invention discloses a spray head and a spray rod assembly, and belongs to the technical field of plant protection. The spray head comprises a shell, a hose, a rotating shaft and a first driving mechanism; one end of the hose extends into the shell, and the other end of the hose extends out of the shell and is connected with a nozzle; the rotating shaft is rotationally arranged in the shell; and the first driving mechanism is configured to drive the hose to be wound on the rotating shaft or released from the rotating shaft. The spray rod assembly comprises a first spraying rod and a secondspraying rod, and the first spraying rod and the second spraying rod are each provided with a plurality of the spray heads. According to the spray head, the extending length of the nozzle can be changed, and it is guaranteed that pesticide is sprayed to the lower middle portion of a crop plant crown or the ground.

The invention provides a multi-joint flaw detecting and positioning device for bridge pipeline welding joints. The device comprises multi-joint telescopic rods, U-shaped mounting frames, pulleys, springs, slide rods, a stud, an electric telescoping cylinder, a moving rod, an annular gear, a rotating rod and a transmission gear. The pulleys are arranged in the U-shaped mounting frames which are arranged at outer ends of the multi-joint telescopic rods, and the springs are mounted on the slide rods which are arranged at inner ends of the pulleys. Extension length of the pulleys can be adjusted, a telescoping function is achieved, and crossing over weld joints or obstacles can be realized. The rotating rod is arranged at the right end of the moving rod which is arranged at the right end of the stud, the transmission gear is arranged at the upper end of the annular gear which is mounted on the rotating rod, and the electric telescoping cylinder is arranged at the front end of the moving rod. A camera is rotational and can be conveniently adjusted in angle. The multi-joint flaw detecting and positioning device has advantages of convenience in use, expansion of an application range, improvement of flaw detection quality and high reliability.

The invention discloses a tongue depressor for pharyngeal inspection, comprising a U-shaped groove, a cover plate, a spatula piece, a screw, a retainer, a sleeve, a telescopic plate, and a tension spring, and is characterized in that the U-shaped groove One end is provided with a groove, the upper side of the U-shaped groove is provided with a cover plate, the inner side of the U-shaped groove is provided with a spatula, and one end of the spatula is provided with a threaded hole. One side is provided with a screw, and the screw is connected with the threaded hole at one end of the tongue depressor; the screw is located inside the groove; both ends of the groove are provided with baffles, and the baffle is fixedly connected with the screw; A sleeve is arranged at one end of the screw rod, and a telescopic plate is arranged inside the sleeve, and the telescopic plate is L-shaped, and the telescopic plate and the sleeve are connected by several extension springs. In the present invention, an L-shaped telescopic plate is set to be stuck at the lower end of the patient's chin, which avoids blocking the line of sight and cross-infection caused by the doctor holding the tongue depressor, and enhances the accuracy of diagnosis. The extension length of the tongue depressor is adjustable, which is suitable for different patients. crowd.

The invention relates to the field of engineering structure shock isolation and equipment vibration control and provides a critical unlocking vertical isolation bearing and a method of the critical unlocking vertical isolation bearing. According to the critical unlocking vertical isolation bearing, prestress is applied to the position between an upper support plate and a lower support plate through a first locking component, a second locking component and a first elastic piece, so that part of deformation generated after the critical unlocking vertical isolation bearing bears the vertical load can be eliminated, when the first locking component and the second locking component conduct locking, the critical unlocking vertical isolation bearing has the large initial vertical rigidity, and meanwhile the purpose that the smaller rigidity of the first elastic piece can be set is achieved; and besides, when the pressure value of the upper support plate reaches the set value under the effect of a design earthquake, the opposite motions of the upper support plate and the lower support plate force a lock tongue to be separated from a lock hole, and the first locking component and the second locking component rotate relatively to complete unlocking, and therefore the first elastic piece with the small rigidity and a damper extend and contract under the earthquake effect for consuming energy, and the better shock isolation purpose is achieved.

The invention discloses a cleaning device with a convenient-to-replace brush head for a gene detector and belongs to the technical of gene detection. The cleaning device comprises an empty barrel, wherein a liquid outlet pipe is fixedly connected to the middle end of the left side of the empty barrel; a first one-way valve is arranged on the liquid outlet pipe; the liquid outlet pipe is connectedwith a sprayer; a water inlet pipe and a liquid inlet pipe are arranged on the empty barrel; a propelling device is arranged in the empty barrel and comprises a rubber pad, a cylinder and a push rod;the rubber pad surrounds the outer side of the cylinder; the push rod is connected to the rear side wall of the cylinder; a connecting plate is connected to the bottom of the empty barrel; a motor isarranged at the bottom of the connecting plate and connected to a first loop bar; the first loop bar is connected to a second loop bar; a through hole is formed in each of the first loop bar and the second loop bar; a square groove is formed in the second loop bar; a brush head is arranged at the left end of the second loop bar and comprises a connection block and a bristle fixing plate; the connection block and the square groove are in movable connection; a second plug pin is connected to each of the second loop bar and the connection block; and the connection block is connected to the bristle fixing plate. The cleaning device is simple in structure and adjustable in length, and the brush head is convenient to replace.

The present invention provides a bottom yarn beating device of a spinning machine. The device comprises a mounting base, a turnover driving air cylinder, a turnover arm, a bobbin clamping assembly, amechanical arm, a bottom yarn driving assembly, a yarn head shearing assembly and a bottom yarn guide plate; when a bottom yarn is beaten, the turnover driving air cylinder provides power for a turnover part in a defined space, a bobbin clamping part clamps a bobbin, excess waste yarns are sheared by a yarn head shearing part after the bobbin and the yarn reach a predetermined position, only the yarns in the direction of a spinning apparatus are remained when a bottom yarn driving part drives the bobbin to rotate, and the yarns are controlled to perform bottom yarn winding on the bobbin, thereby realizing bottom yarn beating of the spinning machine. Compared with the prior art, the requisite multiple procedures in the bottom yarn winding process are reduced, the equipment structure is simplified, the equipment cost is reduced, and the bottom yarn beating process is simplified.

The invention discloses a box cover for matching a coaming box. The box cover comprises a box cover main body, wherein the box cover main body is formed by combining a left box cover and a right box cover through the plug-in connection of a plug-in plate and a plug-in hole; the side face, towards to the inside of a box body, of the box cover main body is provided with a telescoping mechanism; thetelescoping mechanism is arranged in the middle in the box cover main body and comprises fork rods which are crossed and rotationally connected; the two ends of the fork rods are respectively connected with the left box cover and the right box cover; a pair of side faces, outside the box body, of the box cover main body is provided with limit mechanisms; each limit mechanism includes a lock catch,a spring bolt and a sliding buckle; the lock catches comprise base blocks; bending plates are rotationally installed on the base blocks through rotating shafts; each bending plates is in an obtuse angle V shape; a projectile is pressed between the upper half part of each obtuse angle V shape and each base block; and the end of the lower half part of each obtuse angle V shape extends into the empty space. The box cover for matching the coaming box can extend the width of the box cover according to the width extension of a coaming box tray so as to achieve the overall structure of the coaming box, and the structure is stable and the operation is simple.

The invention provides a connection mechanism based on the flaw detection and positioning of welded joints of petroleum pipelines, comprising a front hexagonal connection end, a first connection, a second connection, a rear hexagonal connection, a ball head, a hollow threaded column, an oil storage tank, a hollow thread A rod, a pulley block, a sliding rod and a piston, the rear end of the front hexagonal connection end is provided with a connector 1, the rear end of the connector 1 is provided with a ball head, and the rear end of the ball head is provided with a connector 2, so The second rear end of the connecting piece is provided with a rear hexagonal connecting end. This design adopts a double rotating mechanism, which is more suitable for pipes with different bending angles. The outer end of the hollow threaded column is provided with an oil storage tank. A hollow rod is installed at the end, a pulley block is installed at the outer end of the hollow rod, and a piston is installed at the inner end of the hollow rod. This design can adjust the extension length of the pulley block. Sex is high.

The invention provides a cleaning assembly, and relates to the technical field of photovoltaic modules. The technical problem that an existing photovoltaic module manual cleaning assembly is low in cleaning efficiency is solved. The cleaning assembly comprises a frame body and a cleaning part located on the frame body, wherein the cleaning part is used for cleaning a to-be-treated part when the frame body moves, the extension length of the cleaning part is arranged in an adjustable mode, and the extension length of the cleaning part can achieve the purpose that the coverage area swept by the cleaning part on the surface of the to-be-treated part can be adjusted when the to-be-treated part is cleaned in the set direction. According to the cleaning assembly, the extension length of the cleaning part can be adjusted, the coverage area swept by the cleaning part on the surface of a photovoltaic module can be adjusted when the frame body is moved in the set direction to clean to-be-treatedassemblies such as the photovoltaic module, the frequency of manual back-and-forth movement is reduced, the cleaning assembly is convenient to use, and the cleaning efficiency is further improved; andwhen the cleaning assembly is not used, the extension length of the cleaning part can be adjusted to the minimum, and the cleaning assembly is convenient to carry and store.

The invention discloses a lightened garden pneumatic saw. The lightened garden pneumatic saw comprises a back box, a corrugated hose and a saw box, wherein a storage battery and a high-pressure air blower are fixedly connected in the back box; the left end of the saw box is fixedly connected with a back handle; the upper end of the saw box is fixedly connected with an upper handle; both the back handle and the upper handle have telescopic structures constructed by slide nesting of a fixed handle and a movable handle; a wind disk is fixedly connected in the saw box; a wind wheel is rotationally connected in the wind disk; the two sides of the lower part of the wind disk are communicated with an air inlet tube and an air outlet tube led out of the saw box; a rotation shaft of the wind wheel is led out of the wind disk and is fixedly connected with a driving chain wheel; the right part of the saw box is rotationally connected with a driven chain wheel; a saw chain is arranged between the driving chain wheel and the driven chain wheel. The handheld operating part has the advantages of light weight, low vibration, convenience in use, high accuracy, avoidance of fatigue after long-term use, convenience in maintenance and replacement, adjustable extension length and higher user friendliness.

The invention provides an adjustable grey cloth conveying device based on hydraulic transmission. The adjustable grey cloth conveying device comprises a rectangular bracket, and a pair of rotary oil cylinders; wherein the upper end of the bracket is connected with a drawing board box through a hinge, the outer surface of the drawing board box is provided with a rear end transmission surface, the interior of the drawing board box is movably provided with a drawing board, the outer surface of the drawing board is provided with a front end transmission surface, and the rear end transmission surface and the front end transmission surface are mutually matched; a pair of extension oil cylinders are arranged at two sides below the drawing board box and the drawing board, one end of each extensionoil cylinder is hinged to the middle end of the drawing board box through a hinge point, and the other end of each extension oil cylinder is hinged to the tail end of the drawing board; and one end of each rotary oil cylinder is hinged to the lower end of the bracket, and the other end of each rotary oil cylinder is connected with the drawing board box through a pin shaft device. According to theadjustable grey cloth conveying device, the loading efficiency of the grey cloth can be improved, and the loading labor intensity is reduced.

The invention provides a combined wheel disk for pavement ice and snow removal and belongs to the technical field of snow removal machinery. The combined wheel disk is used for solving the problems during accumulated snow or ice layer cleaning of the existing snow removal machinery that the pavement cleaning is not complete and the removal is poor in quality and low in efficiency. The combined wheel disk comprises an outer disc, an inner disc, a central disc and a plurality of ice and snow breaking devices, wherein the central disc and the inner disc are fixedly connected, the inner disc and the outer disc are fixedly mounted, each ice and snow breaking device comprises a sliding cutter bar, a cutter bar seat and a telescopic device, the inner ends of the sliding cutter bars are mounted in the cutter bar seats, cutters are mounted at the outer ends of the sliding cutter bars, one end of each telescopic device is connected to the external wall of the corresponding cutter bar seat through a connecting pin, the other end of each telescopic device is connected to a pin seat through a telescopic device connecting pin, and each pin seat is fixedly mounted on the inner disc. The combined wheel disk is ingenious in design, novel in structure, low in manufacturing cost and convenient in mounting; the adjustment and replacement of the cutters are convenient and fast, the economic benefit is remarkable, the service life is long, and cleaning operation for pavements with snow retention and ice accretion can be efficiently completed.

The invention discloses a clothing arching testing device and a clothing arching testing method. At present, a common fabric arching test method is a steel ball jacking test sample method, and although the method measures arching residual deformation, arching deformation generated in the actual wearing process of clothes cannot be completely simulated. The device comprises a flexion and extensiondriving module, a rack and a leg simulation mechanism, the flexion and extension driving module comprises a single-side flexion and extension assembly, an air cylinder and a driving rod. The leg simulation mechanism comprises a flexible sleeve, a shank supporting rod, a thigh supporting rod, an inflatable air bag and a hook-and-loop fastener. The flexible sleeve is sleeved on the shank supportingrod and the thigh supporting rod and consists of a shank sleeve, a thigh sleeve and a connecting sleeve which are connected in sequence; knee movement can be simulated, and the arching condition of the fabric when the fabric is subjected to various external forces can be reproduced. According to the method for evaluating the arching performance of the fabric, a plurality of indexes capable of reflecting the arching degree are obtained through an image processing technology, and the arching grade can be predicted according to the established linear model.

The invention relates to the technical field of rice seedling raising, in particular to a raw material feeding device for rice seedling raising. The device comprises a mounting plate, enclosure pipesare arranged on the bottom surface of the mounting plate, a motor is arranged on the top surface of the mounting plate, a rotor of the motor is in transmission connection with a screw shaft through acoupler, an extension pipe sleeves the outer side of each enclosure pipe, a soil breaking blade is arranged on the outer wall of the extension pipe, a baffle ring sleeves the outer side of each enclosure pipe, a connecting frame is arranged on the top surface of the mounting plate, a material box is arranged on the top surface of the connecting frame, a feeding opening is formed in a bottom plateof the material box, and a material conveying pipe is inserted into the bottom end of the feeding opening. The device has the beneficial effects that: multiple sets of enclosure pipes are installed below the mounting plate, the screw shaft is additionally arranged in each enclosure pipe to convey a fertilizer fed by the material conveying pipe into soil, the extending length of the extension pipearranged on the outer side of each enclosure pipes in a sleeving mode can be adjusted, and soil with different depths can be fertilized conveniently.

The invention discloses a compressor transfer device for refrigeration equipment. The compressor transfer device comprises a supporting mechanism and a suspension mechanism, the supporting mechanism comprises two first supporting rods, a mounting plate is fixed to the bottoms of the first supporting rods, two second supporting rods distributed front and back are fixed to the bottom of the mounting plate, fixed seats are arranged at the bottoms of the second supporting rods, movable grooves are formed in the tops of the fixed seats, movable wheels are fixed to the bottoms of the fixed seats, the tops of the two first supporting rods are rotationally connected with the same cross rod, mounting blocks are fixed to the inner sides of the first supporting rods, sleeves and connecting rods are rotationally connected to the inner sides of the two mounting blocks, screws are rotationally connected to the inner sides of the connecting rods through bearings, and the screws are in threaded connection with the sleeves. According to the compressor transfer device, the screws are in threaded connection with the sleeves, so that the extension length of the screws in the sleeves can be adjusted, the distance between the two first supporting rods can be adjusted, the overall height of the cross rod can be adjusted, therefore, the flexibility of the device is improved, and the device can be conveniently used in a plant.