1089results about How to "Adjust the tilt angle" patented technology

The invention discloses an adjustable fixture for inclined-hole drilling. The adjustable fixture for inclined-hole drilling comprises a base and a bolt, wherein one end of the base is connected with the lower end of a supporting plate in a rotating mode, the other end of the base is connected with a first threaded rod in a rotating mode, the upper end of the supporting plate is connected with a second threaded rod in a rotating mode, the first threaded rod and the second threaded rod are arranged on the two sides in a threaded sleeve respectively, an external thread of the first threaded rod and an external thread of the second threaded rod are in opposite directions, a locating core used for locating a workpiece is fixedly arranged in the middle of the upper side of the supporting plate, and the bolt penetrates through the supporting plate and the rear end of the locating core and is provided with a pressing plate used for tightly pressing the workpiece. The adjustable fixture for inclined-hole drilling has the advantages that the angle of inclination can be adjusted within a certain range, the universality is high, the design is reasonable, the structure is simple, operation is convenient, labor intensity is lowered, production efficiency is improved, assembly and disassembly are convenient, the service life is long, production cost is low, and popularization and use are convenient.

The invention relates to the technical field of automation equipment and discloses an automatic welding manipulator for automobile assembly. The automatic welding manipulator comprises a base and support plates arranged on two sides of the upper end of the base. The two support plates are symmetrically arranged. Longitudinal sliding rails are correspondingly arranged at the upper ends of two opposite side walls of the two support plates. Longitudinal sliding blocks are correspondingly and slidably connected into the two longitudinal sliding rails. A cross beam transversely arranged is arrangedin the front of the two support plates. The two ends of the cross beam are fixedly connected with the two longitudinal sliding blocks. A transverse sliding rail is arranged at the lower end of the cross beam. A transverse sliding block is slidably connected into the transverse sliding rail. The lower end of the transverse sliding block is fixedly connected with a reduction box. One side of the reduction box is fixedly connected with a driving motor. The automatic welding manipulator for automobile assembly can weld automobile parts from multiple angles and can clamp and fix and rotate and lift automobile parts in different shapes, the welding efficiency is improved and the use is facilitated for people.

The invention provides a water hyacinth salvage ship, belongs to the technical field of aquatic decontamination equipment, and solves the problem of low water hyacinth salvage efficiency at present. The water hyacinth salvage ship comprises a hull, wherein a collecting cabin is arranged on the hull; the hull is provided with two mounting parts; a conveyor belt is connected between the two mounting parts; a cutter head is in rotating connection to the lower part of a feeding section of the conveyor belt; a shoving frame is in rotating connection to the upper part of the feeding section; filtering holes are uniformly formed in the conveyor belt; a filtering plate is also fixedly connected between the two mounting parts; a grinding cylinder is in rotating connection to each of the mounting parts; a blanking region is arranged between the rear end of the conveyor belt and the collecting cabin; a cutter frame is in rotating connection to the blanking region; a circular blade is connected to the cutter frame; and a driving motor which can drive the grinding cylinders and the cutter frame to rotate at the same time is arranged on the hull. The water hyacinth salvage ship disclosed by the invention can automatically salve, filter and cut water hyacinth, and is high in automation degree.

The invention discloses an adjustable mobile teaching auxiliary device, comprising a base, the lower surface of the base is movably connected with a universal wheel through a universal wheel bracket, the upper surface of the base is fixedly connected with a support frame, and the inner walls on both sides of the support frame are The locker is fixedly connected with the locker through the fixed block, the vertical partition is fixedly connected between the inner top and the bottom of the locker, and the horizontal partition is fixedly connected between the left and right sides of the vertical partition and the inner walls of both sides of the locker. , the left and right sides of the support frame are provided with chute, and the inner sides of the two chute are movably connected with the first slider. The present invention solves the problem of insufficient writing space on the existing blackboard during movement by arranging the first blackboard, the second blackboard, molded parts, shaft sleeves, movable shafts, rotating handles, fixed disks and movable bolts to cooperate with each other. The sliding rail, the second sliding block, the U-shaped seat, the movable plate, the fixed handle and the wiping cloth cooperate with each other to solve the problem that the mobile teaching blackboard is inconvenient to wipe the blackboard.

The invention relates to an apparatus for automatically tracking sunlight in an inclination angle direction of a battery board in photovoltaic power generation, which comprises a photovoltaic panel mounted on a rotating shaft. The lower end of the photovoltaic panel is provided with an air-filled seal cavity, a piston is arranged at the outlet of the seal cavity and a lever is arranged on the rotating shaft. One end of the lever is articulated with the piston while the other end is contacted with the back surface of the battery board. In the invention, according to corresponding inherent law and characteristics between the changing period (one year) of inclination angle of the sun and the temperature (climate), ingeniously matched expansion on heating and contraction on cooling of gas in the seal cavity and horizontal component force of the photovoltaic panel fixed on the rotating shaft are utilized to form a push-pull type power source and the inclination angle of the photovoltaic panel can be adjusted directly by amplifying the displacement of the piston via the lever so as to realize two-dimensional automatic tracking of sunlight by the photovoltaic cell to achieve the purpose of improving the utilization rate of sunlight.

The invention relates to a wide-angle security and protection monitoring device. The device comprises a mounting frame, a supporting seat and a camera shell body, wherein a camera is installed in thecamera shell body, and a transparent observation window is embedded in the camera shell body; the mounting frame is connected with the supporting seat through a height adjusting mechanism, a supporting frame is fixedly connected to the middle of the lower end of the supporting seat, and a driving motor is installed on the supporting frame; and the camera shell body is located in the middle below the supporting frame, furthermore, the upper end of the camera shell body is fixedly connected with the lower end of a motor shaft of the driving motor through an angle adjusting mechanism, and a cleaning mechanism is arranged on the camera shell body. According to the wide-angle security and protection monitoring device, the monitoring range is improved, the dead angle of monitoring is reduced, and the monitoring clarity and the monitoring accuracy are improved.

The invention discloses horizontal filling equipment for missile encasement. The horizontal filling equipment comprises a missile horizontal propelling platform and a missile storage and transportation box lifting platform which are sequentially arranged in the missile filling direction, wherein the missile storage and transportation box lifting platform can achieve six-degree-of-freedom movementof a missile storage and transportation box, and the missile horizontal propelling platform can be used for achieving the adjustment of circumferential poses of the missiles for missiles with different models and different centering part positions in a simple, convenient and rapid mode, so that guide buttons of the missiles are enabled to be aligned with guide grooves in the missile storage and transportation box. According to the horizontal filling equipment for the missile encasement, through the cooperation between the missile horizontal propelling platform and the missile storage and transportation box lifting platform, a missile-borne guide rail on the missile horizontal propelling platform can be quickly aligned with a missile-borne guide rail on the missile storage and transportation box, so that the filling efficiency is improved, and the equipment has the advantages of being high in applicability, convenient to operate, high in filling precision and filling efficiency and thelike overall.

The invention relates to method and equipment for disassembling waste ceramic resistors and recovering resources. In the invention, waste ceramic resistors are put into a grinding type crusher from a hopper and a feed regulation valve, wherein the grinding type crusher is internally provided with a plurality of pairs of grinding rolling shafts or rollers for grinding the waste ceramic resistors; a vibration screening machine is arranged below the grinding rolling shafts or the rollers; a vibration screening net is obliquely arranged and supported on a stand by a spring; a vibration motor is arranged below the vibration screening net; after the ceramic resistors are crushed, a mixture of ceramic powder and copper and iron pins is formed, falls on the vibration screening machine and sieved by the vibration screening net; and a steel plate plane ceramic powder collecting layer is arranged below the screening net, and an oblique discharge hole of the screening net is used for collecting the copper and iron pins for recovering metal resources. In the invention, a physical method is adopted to crush without secondary pollution, which protects the environment, saves energy and has good metal resource recovery and utilization effects.

The invention discloses an intelligent metal pipe bender. The intelligent metal pipe bender comprises a bottom plate, supporting posts, a top plate, a lifting device, a first connection plate, a firstsupport, a pressing wheel, an assembly base, assembly blocks, a threaded rod, threaded sleeves, supporting rods and bearing wheels; supporting leg plates are vertically arranged on the left and rightsides of the lower end of the bottom plate; central parts of opposite side surfaces of the two supporting leg plates are provided with first hinge bases; the first hinge bases are connected with theupper ends of first connection rods; second hinge bases are arranged on the lower ends of sliding bases; the second hinge bases are connected to the upper ends of second connection rods; and the lowerends of the first connection rods and the second connection rods are all arranged on third hinge bases. By adopting the intelligent metal pipe bender, a metal pipe can be placed on the upper ends ofthe two bearing wheels; the pressing wheel is driven to press downwards by the lifting device, so that bending operation for the metal pipe is realized; the application range is wide; and besides, rollers can be in contact with the ground, so that moving of the bottom plate is realized.

The invention discloses a solar cell panel adjusting device convenient to use. The solar cell panel adjusting device convenient to use comprises a bottom plate; a bearing is in clamped connection on the upper surface of the bottom plate; a rotating shaft is in sleeved connection in the bearing; a driven gear is in sleeved connection on the surface of the rotating shaft; the driven gear is meshed with a first driving device; and the lower surface of the first driving device is fixedly connected with the upper surface of the bottom plate. According to the solar cell panel adjusting device convenient to use disclosed by the invention, a second motor and an elastic device are arranged; therefore, the output shaft of the second motor forwardly rotates to drive a take-up reel to wind a pulling rope, so that the pulling rope pulls an idler wheel to move rightwards; therefore, a solar cell panel body forwardly rotates around a pin shaft; when the output shaft of the second motor reversely rotates, a first spring in the elastic device can pull the idler wheel to move leftwards by utilizing self tension; therefore, the solar cell panel body reversely rotates around the pin shaft; the inclination angle of the solar cell panel body can be directly adjusted; and thus, convenience is provided for people when the inclination angle of the solar cell panel body is adjusted.

The invention relates to the technical field of concrete preparation, in particular to a concrete preparation system and method. The concrete preparation system comprises a raw material weighing device, a raw material mixing device, a pouring-into-mold device, a curing device, a demolding device and a mold cleaning device. Through reasonable arrangement of the above processes and coordination anddistribution of responsibilities, concrete is prepared, an automatic process of concrete preparation is realized, labor is saved, work efficiency is improved, and use is convenient.

The invention discloses a clamp facilitating slope machining of a mold. The clamp comprises a base, wherein a carrying table is hinged to the top of the base, and the carrying table is obliquely arranged; a connecting base is welded to the bottom of the carrying table, a connecting rod is rotationally arranged at the bottom of the connecting base, and the connecting rod is obliquely arranged; a first sliding groove is formed in the top of the base, a first sliding rod is welded on the inner wall of the first sliding groove, a sliding seat which sleeves the first sliding rod in a sliding mode is arranged in the first sliding groove in a sliding mode, and the top of the sliding seat extends to the outside of the first sliding groove; and the end, far away from the connecting base, of the connecting rod is rotationally arranged at the top of the sliding seat, and a first limiting groove is formed in the inner wall of the bottom of the first sliding groove. According to the clamp, the structure is simple, the operation is simple and convenient, the inclination angle of the carrying table, namely the draft angle can be adjusted conveniently, the position of an indexing plate and the position of an electromagnetic adsorption disc can be adjusted in a sliding mode according to requirements after the draft angle is adjusted, and the draft angle can be fixed so that the work is facilitated.

The invention discloses a floor-sweeping robot for easy mop replacement, comprising a robot, four right angles of the bottom of the robot are provided with rollers, both sides of the robot are movably connected with mechanical arms, and the two mechanical arms are opposite to each other. One side is fixedly connected to one end of the two connecting rods respectively, and the opposite ends of the two connecting rods are respectively fixedly connected to both sides of the cylinder, and an adjustment groove is opened in the cylinder, and both sides of the inner wall of the adjustment groove are opened There is a circular groove, and a round block is sleeved in the circular groove, and the gap in the circular groove is filled with an anti-slip layer. Through the improvement of the round block, when the round block rotates in the circular groove, it can drive the adjustment rod to rotate, so that the inclination angle of the handle can be adjusted. When the two push plates are pressed relatively, the vertical plate can drive the two clamps. The block breaks away from the draw-in slot at the same time, and the pressing plate is released. Under the action of the elastic force of the extrusion spring, the vertical plate can drive the two blocks to snap into the draw-in slot, thereby achieving the effect of being convenient for installing the broom.

The invention discloses an orientation-adjustable solar LED street lamp comprising a lamp rod, a mounting seat fixed to the top of the lamp rod and supporting arms fixed to the left and right sides of the mounting seat. A protective shell body is arranged on the mounting seat. An upper cavity and a lower cavity are formed in the protective shell body. A fixed partition plate is arranged between the upper cavity and the lower cavity. An outer gear rotating table is fixedly arranged below the protective shell body. A coupling shaft is rotatably connected with the middle of the bottom of the outer gear rotating table and the middle of the top of the mounting seat. First gears are in engaged connection with the left and right sides of the outer gear rotating table. First motors are rotatably connected with the bottoms of the first gears and fixedly connected with the mounting seat in an embedded mode. A second motor is arranged in the middle of the bottom of the lower cavity, and a second gear is rotatably connected with the top of the second motor. Slave gears are in engaged connection with the left and right sides of the second gear. According to the orientation-adjustable solar LED street lamp, the structure is simple, operation is convenient and fast, the situation that the device is damaged caused by being affected by climate factors such as wind force and sand dust is not liable to occur, the service life is prolonged, and using efficiency is improved.

The invention discloses a building garbage crusher which comprises a rack, wherein the left end part of the rack is provided with a power drive system; the power output end of the power drive system is in transmission connection to a material crushing system positioned at the right side of the power drive system; the material crushing system is fixed to the rack; an automatic spraying and dust-reducing system in front of a charging part of the material crushing system is arranged on the rack; a spraying part of the automatic spraying and dust-reducing system is positioned in the material crushing system; and one side of the rack is provided with a settling tank. According to the building garbage crusher disclosed by the invention, synchronous drive of a primary transmission shaft and a secondary transmission shaft is realized through the power drive system, dust generated in a crushing process is effectively reduced through the automatic spraying and dust-reducing system, cyclic utilization of water flow is realized, and material crushing is realized through the material crushing system, so that building garbage is recycled; and the building garbage crusher is simple to operate, is stable in work, is good in crushing effect, increases a waste utilization rate, reduces production cost, and is energy-saving and environmentally friendly.

The invention discloses a solar photovoltaic panel supporting device for new energy. The device comprises an adjusting box and a supporting plate, a driving motor is fixedly connected to the bottom ofthe inner cavity of a machine box, a speed reducer is fixedly connected to an output shaft of the driving motor, a reinforced bearing base is fixedly connected to the tail end of a supporting rod onthe inner wall of the right side of the adjusting box, an output shaft of the speed reducer is fixedly connected with a rotary shaft through a coupling, and the end, away from the coupling, of the rotary shaft penetrates the reinforced bearing base and the top of the inner cavity of the adjusting box and is fixedly connected with a rotating disc. According to the solar photovoltaic panel supporting device, through arrangement and mutual cooperation of the adjusting box, the driving motor, the speed reducer, the reinforced bearing base, the coupling, the rotary shaft, the rotating disc and an adjusting plate, the problem that the angle of an existing solar photovoltaic panel supporting device cannot rotate is solved; through arrangement and mutual cooperation of the adjusting plate, a firstadjusting base, a hydraulic cylinder, a second adjusting base, pin shafts and connecting plates, the problem that the inclined angle of an existing solar photovoltaic panel cannot be adjusted is solved.

The invention relates to a solar photovoltaic support with convenient angle adjustment. The solar photovoltaic support comprises a pre-buried base, support sleeves are embedded on both sides of a topof the pre-buried base, support columns are slidingly sleeved in tops of the support sleeves, top ends of the support columns are vertically connected to a first support rod, a bottom of the first support rod is vertically connected to two shock absorbing mechanisms, bottoms of the shock absorbing mechanisms are connected to the top of the pre-buried base through screws, and a connection block iswelded to a left end of the top of the first support rod. The solar photovoltaic support has the advantages of simple structure, high stability and reliability, convenient disassembly and assembly andconvenient adjustment, a movable support rod can be moved back and forth by rotating a screw rod, therefore, the tilting angle of a second supporting rod is adjusted, the angle of the support can bequickly adjusted, the second support rod can be stably supported and buffered by setting an air spring, the stability of the support is improved, and the support has a good anti-shock and anti-pressure effect by setting the shock absorbing mechanisms at the bottom of the first support rod, and the support has a wide application prospect.

The invention provides a multifunctional adjustable desk. The multifunctional adjustable desk comprises longitudinal supporting pipes, fixing bolts, adjustable mounting underframe structures, adjustable fixing frame structures, buffer massage frame structures, an adjustable writing backing plate structure, a desk plate, a material storage frame, a left storage frame, a left insertion bucket, a left handle, a right storage frame, a right insertion bucket, a right handle and a classification partition plate, wherein the longitudinal supporting pipes are mounted at the four corners of the lower part of the material storage frame in a bolted mode. The arrangement of massage balls is beneficial to massage legs of a user when the multifunctional adjustable desk is used. Jacking bolts penetrate through longitudinal adjusting grooves and are in threaded connection with fixing plates, so that the height of the fixing plates at the inner side of longitudinal adjusting side plates is adjusted, and the height of the buffer massage frame structures is adjusted conveniently. Angle adjusting supporting rods are separately and axially connected to the left and right sides of the rear end of the lower part of a writing board, so that the adjustment of inclination angle of the angle adjusting supporting rods at the lower part of the writing board is facilitated, and the inclination angle of thewriting board is further conveniently adjusted.

The invention discloses a sunlight device for automatically tracking an inclination angle of a solar panel in photovoltaic generation. The sunlight device comprises a bracket and a rotating shaft installed on the bracket; a photovoltaic solar panel is installed on the rotating shaft; a closed cavity with an oil wiping adjustment hole is arranged at the lower end of the photovoltaic solar panel on the bracket; liquid is filled in the lower part of the closed cavity, and the level of the liquid is higher than that of the liquid at an outlet of the closed cavity; gas is filled in an upper part of the closed cavity; a piston is arranged at the outlet position of the closed cavity; a lever is installed on the rotating shaft; and one end of the lever is hinged with the piston while the other end of the lever is contacted with the back of the photovoltaic solar panel. In the invention, the closed cavity is adjusted through the oil wiping adjustment hole so as to implement the adjustment of parameters such as thrust, displacement and the like.

A rehabilitation bed for curve traction treatment of lumbar intervertebral disc protrusion comprises a bedstead, rocking handle transmission mechanisms and panel rotating mechanisms consisting of rotary panels, and the rocking handle transmission mechanisms and the panel rotating mechanisms are mounted on the bedstead. The rehabilitation bed is characterized in that the rehabilitation bed is provided with a concave panel and a drawing panel, wherein two groups of panel rotating mechanisms are provided; rotary panels of the two groups of panel rotating mechanisms are respectively arranged in the front and at the back of the bedstead; the concave panel is arranged between the inner end parts of two rotary panels in the middle of the bedstead; the drawing panel is arranged on the rotary panels; and a plurality of air bags and an air charging system for air-charging of the air bags are arranged below the concave panel. The rehabilitation bed has the advantages of reasonable and scientific structure, easiness in production and manufacture and good using effect, can realize rehabilitation training by arc-shaped dorsal flexion and swallow-like action of human bodies, and can serve multiple functions of arc-shaped traction and normal prostration, so that one rehabilitation bed can meet the requirements of various diseases; and besides, the problem that a critically ill patient can not get out of bed for excretion is solved and the use value and the medical effect of the rehabilitation bed are greatly improved.

The invention discloses an iron support for a chemical test, belongs to the field of chemical test devices and aims to solve the technical problems that height adjustment and rotation adjustment of an existing iron support are mutually affected, and the existing iron support cannot be detached. The iron support structurally comprises a base, a supporting rod, a plurality of test tube clamps and a plurality of iron rings, each iron ring comprises a connecting rod and a supporting ring fixed at the outer end of the connecting rod, the diameters of the supporting rings are different, each test tube clamp comprises a rotating rod and clamping parts fixed at the outer end of the rotating rod, the supporting rod is detachably and vertically fixed on the base, a plurality of lifting mechanisms are arranged on the supporting rod, the inner end of each connecting rod and the inner end of each rotating rod are detachably connected on the lifting mechanisms corresponding to the connecting rod and the rotating rod, and the lifting mechanisms can drive the connecting rods or the rotating rods to vertically move along the supporting rod.

The invention relates to an improved bamboo cutting machine. The improved bamboo cutting machine is characterized in that a bamboo placement table is arranged on a base and directly faces a conveying mechanism arranged on one side of the improved bamboo cutting machine; a cutting mechanism is arranged on the base, and comprises a plurality of cutters which perform reciprocating motion up and down; according to the specifications of to-be-machined bamboo, the cutters can be switched over at any time; a plurality of dividing strips are arranged on the placement table in a spaced manner; the placement table is divided by the dividing strips into a plurality of conveying tracks; a material guiding mechanism is arranged at the discharging port of the placement table; a plurality of loading and transporting tables are arranged at the outlet of the material guiding mechanism; the material guiding mechanism comprises a horizontal conveyor belt and a group of transmission rolls; a weighing sensor is arranged in the group of transmission rolls and connected with a controller; a motor of the group of transmission rolls is also connected with the controller; when a set value of the weighing sensor is reached, the motor is controlled by the controller to start up the group of transmission rolls, and then the transmission operation is initiated; a lifting table is arranged at the lower part of the material guiding mechanism and comprises a plurality of lifting columns; and the height of each lifting column can be adjusted independently. The improved bamboo cutting machine provided by the invention is equipped with the lifting platform, so that the inclination angle of the material guiding mechanism can be adjusted, the discharging can be facilitated, and products can be protected from damage.

The present invention discloses an LTE station tower connection piece, and relates to the field of communication devices. The LTE station tower connection piece comprises a stand column, ring units, connection rods and an installation plate. The stand column is a hollow tubular structure, two ends of the stand column are provided with flange end faces which are provided with a plurality of installation holes, there are the at least two ring units, the ring units are connected with the stand column through the connection rods, and are coaxial with the stand column, the ring units are provided with annular connection holes which are connected with fixed parts through adjustable bolts, the lower end of the installation plate is hinged with the fixed parts, and the outer sides of the fixed parts are connected with the installation plate through an angle regulation mechanism. The connection piece capable of being independently installed is designed by means of the ring units to achieve themulti-angle regulation of the antenna in a horizontal direction, the angle regulation mechanism can achieve regulation of the inclination angle of the antenna so as to improve the flexibility of the installation to adapt the installation demand in different environments.

The invention discloses a gantry edging mechanism and an automatic polisher using the same, and belongs to the field of polishing instruments. The gantry edging mechanism comprises a gantry frame, a polishing assembly and a driving assembly, wherein both the polishing assembly and the driving assembly are arranged on a side frame of the gantry frame, and the polishing assembly moves upwards, downwards, frontwards and backwards for edging through the driving of the driving assembly; the automatic polisher comprises the gantry edging mechanism and a material clamping mechanism. The gantry edging mechanism and the automatic polisher applying the same can automatically edge products for substituting a manual polishing mode, thereby improving the production efficiency of the products and reducing the damage of dust generated by polishing to an operator; in addition, the structure is stable, and the edging effect is good.

The invention relates to the technical field of medical equipment, and particularly discloses a gynecological diagnosis and treatment auxiliary device. The device comprises a box seat, a seat plate, aback plate, a curved support plate, a support column, a vertical screw rod, a lifting sliding block, a driving motor and an electric push rod, the back plate is rotatably arranged on the seat plate by means of an articulated manner, a plurality of limit fixing holes are formed in the curved support plate at equal intervals, each of first transverse screw rods is provided with a first motion sliding block by a screw connection manner, the two first motion sliding blocks are fixedly provided with limit columns, and the limit columns are fixedly provided with limit pillars matched with the limitfixing holes. The device not only can adjust the height of the seat plate, but also facilitates the adjustment of the tilt angle of the back plate, is convenient to use, is safe and reliable, and canalso adjust the position of a foot pedal relative to the seat plate, thereby improving the comfort when a patient uses the diagnosis and treatment auxiliary device.

The invention discloses a floor mopping robot facilitating adjustment of a cleaning range. The floor mopping robot facilitating adjustment of the cleaning range comprises a robot body, wherein two sides of the robot body are fixedly connected with mounting blocks separately; the front surface of each mounting block is fixedly connected with a mechanical arm; opposite sides of the two mechanical arms are fixedly connected with transverse adjusting plates; an adjusting groove is formed in each transverse adjusting plate; the inside of each adjusting groove is slidably connected with an adjusting block; chutes are separately formed in the top and the bottom of the inner wall of each adjusting groove; and the inside of each chute is slidably connected with a sliding block. By improvement of a retractable cylinder, the adjusting blocks can be driven to move in the adjusting grooves, therefore, longitudinal adjusting rods can drive two fixing sleeves to move oppositely, at the moment, the lengths of retractable soft sleeves are convenient to adjust, fur is arranged on the surfaces of the retractable soft sleeves, when the retractable soft sleeves stretch and retract, bristles are distributed unevenly, and are matched with an inner piston, and the stability of the retractable soft sleeves during stretching and retracting can be improved further.

The invention discloses a handheld laser welding device. The handheld laser welding device comprises a welder switch, a cooling switch, a welding cabinet, a U-shaped moving base, universal wheels provided with brake pads, a welder, a cabinet cover, a cooling motor, blades, a hollowed-out hood, a drag hook, an optical fiber, an adjustable handheld welding gun structure, an adjustable splash-proof protective cover structure and a suction-type scrap temporary collection and storage barrel structure. According to the handheld laser welding device, a gun cap, a welding gun body, a fixing pipe, a gun head, a U-shaped handheld rod, an anti-slip sleeve and an adjustment bolt are arranged, the position of the welding gun body in the fixing pipe can be adjusted easily by loosening the adjustment bolt, and thus, welding can be conducted more easily, and the welding device can be held by hand so as to be used more conveniently; and a supporting base, a connecting base, a rotary rod, a splash-proofcover, a connecting shaft and an adjustable telescopic rod are arranged, and the inclination angle of the splash-proof cover can be adjusted according to welding requirements so as to prevent splashmore conveniently.

The invention discloses a spray bar adjusting device of an unmanned aerial vehicle for plant protection and an adjusting method of the spray bar adjusting device. The spray bar adjusting device comprises a fixing plate and a spray bar, wherein the spray bar is provided with a spray nozzle, a positioning marker post is arranged on the fixing plate in a hung mode, the spray bar is horizontally arranged, and a width adjusting mechanism which is used for driving the spray bar to move to the left and right so as to realize adjustment of the width position of the spray nozzle is arranged on the spray bar; the width adjusting mechanism is mounted on a horizontal slide bar, and the fixing plate is fixedly provided with a telescopic mechanism which is used for making the horizontal slide bar to move up or down or incline so as to achieve adjustment of the height of the spray bar and the inclined angle of the spray bar; the telescopic mechanism comprises a first telescopic mechanism and a secondtelescopic mechanism which are arranged in an inverted V shape and can be independently controlled separately, and the spray bar adjusting device can be fixedly mounted on a landing rack of the unmanned aerial vehicle through the fixing plate. The adjusting method of the spray bar adjusting device includes a method for adjusting the height of the spray bar, a method for adjusting the width position of the spray nozzle and a method for adjusting inclination of the spray bar.