39results about How to "Avoid manual support" patented technology

The invention relates to a grinding device for optical fiber connector production. The grinding device comprises a box body and further comprises a lifting device, a driving device used for driving the lifting device to work, an adjusting device used for adjusting lifting or stopping vertical movement, and a clamping mechanism arranged inside the lifting device. A supporting platform is installedon the inner wall of the bottom end of the box body. An optical fiber connector tip is arranged at the top end of the supporting platform. A belt wheel A, a hard belt and a belt wheel B are driven torotate by the driving device, at the moment a rotary shaft and a lead screw rotate, under the action of a thread, a movable sleeve is driven to drive a second gear to move downwards gradually, meanwhile, the clamping mechanism works, under the action of a first hinged rod and a second hinged rod, two grinding pieces are driven to move towards each other inside a guide groove, therefore, the optical fiber connector tip is clamped, meanwhile, the top end of the optical fiber connector is pressed by a press block, the optical fiber connector tip is prevented from falling off, and the device stability is guaranteed.

The invention discloses an integrated device capable of conveniently conducting polishing, derusting and segmentation cutting on waste steel pipes. The integrated device comprises an installing plate,a limiting ring, an installing table, a motor, a rotary shaft and a cutting wheel, wherein a fixing base is installed above the installing plate; a connecting rod is arranged on the inner side of thefixing base and provided with a transmission wheel and a supporting rod; a brush plate is arranged on the inner side of a brush ring and provided with bristles; the transmission wheel is fixed to theright side of a rotary rod; and the rotary rod is connected with the rotary shaft through the transmission wheel and a transmission belt. According to the integrated device capable of conveniently conducting polishing, derusting and segmentation cutting on waste steel pipes, four roller wheels are distributed on the inner side of the limiting ring at uniform angles, steel pipes with different diameters can be conveniently limited and fixed, and meanwhile steel pipes needing derusting can be conveniently pushed, so that the situation that steel pipes need to be manually pushed to move inside the integrated device is avoided, and the labor intensity of workers is reduced.

The invention belongs to the technical field of medical apparatus and instruments, and particularly discloses an intensive care patient safe transport device which comprises a bed board, bed legs and universal wheels. Slide rails are arranged on the bed legs, a first penetrating opening and a second penetrating opening are formed in two sides of the bed board, a first fence assembly capable of penetrating the first penetrating opening and a second fence assembly capable of penetrating the second penetrating opening are further arranged on the two sides of the bed board and are distributed on the two sides of the bed board in a mirror symmetry manner, and a tool box is further arranged on a side of the bed board. The intensive care patient safe transport device has the advantages that a protective cover can be formed by the first fence assembly and the second fence assembly, a patient can be protected in the protective cover, and accordingly the condition that certain persons accidentally run into the intensive care patient safe transport device or medical staffs in transport procedures can be prevented.

The invention discloses a current transformer replacing device for a power distribution cabinet. The current transformer replacing device comprises an upper frame and a lower frame. The lower frame is used for being fixed to a shell of the power distribution cabinet. The upper frame can be movably arranged on the lower frame through a dragging assembly and is provided with a supporting board for horizontally supporting a current transformer of the power distribution cabinet. The supporting board can be arranged on the upper frame in a rotating mode and provided with a clamping assembly which is used for fixing a fixing beam of the power distribution cabinet. When the current transformer replacing device is used, firstly, the lower frame is fixed to the shell, the fixing beam is firmly fixed through the clamping assembly, and then the fixing beam is detached from the shell; secondly, the upper frame is driven to move towards the outside of the power distribution cabinet along the lower frame, and the supporting board is rotated to be horizontal; thirdly, the old current transformer is detached and a new current transformer is installed; finally, the supporting board is rotated to the original position, the upper frame is moved to the original position, and the fixing beam is assembled on the shell again. According to the current transformer replacing device, the current transformer is prevented from being held manually, labor intensity can be easily relieved, and operation is convenient.

The invention belongs to the technical field of medical puncture stents, and particularly relates to an ultrasonic guided nerve block puncture stent for the anesthesiology department. The ultrasonic guided nerve block puncture stent for the anesthesiology department aims at solving the problems that in the prior art, a puncture stent for the anesthesiology department is fixed to an ultrasonic probe unstably and moves along with the ultrasonic probe, and the tightness degree is difficult to control. According to the technical scheme, the ultrasonic guided nerve block puncture stent for the anesthesiology department comprises a suction cup base, a balancing weight is arranged on the suction cup base, a vertical rod is arranged at the top of the balancing weight, a lantern ring is installed on the outer side of the vertical rod in a sliding mode, a locking bolt is connected to the outer side of the lantern ring in a threaded mode, an end of the locking bolt extends into the lantern ring and is in contact with the vertical rod, a telescopic rod is arranged on the outer side of the lantern ring, a sleeve is connected to the output end of the telescopic rod, and a frame structure is connected to the sleeve. The ultrasonic guided nerve block puncture stent for the anesthesiology department is simple in structure and convenient to operate, the ultrasonic probe can be effectively fixed, the circumstance that a physician of the anesthesiology department holds the ultrasonic probe manually again is avoided, the working difficulty is lowered, and the problems of clamping and deviation occurring during puncture of a puncture needle are solved.

The invention relates to the technical field of mechanical and electrical equipment, and discloses a transfer device of mechanical and electrical integrated equipment. The transfer device is characterized in that pushing rollers are symmetrically arranged at corners and below a support underframe, a lifting mechanism is fixed to the inner side of the support underframe, and a lifting adjusting mechanism is fixed at one end and above the support underframe; and positioning clamping sleeves are symmetrically connected to the outer side of a lifting supporting rod in the lifting adjusting mechanism in a sleeving manner, and clamping and fixing mechanisms are fixed to the front sides of the positioning clamping sleeves. According to the transfer device, the mechanical and electrical equipmentis supported and lifted through the lifting mechanism, a traditional single supporting, lifting and transferring manner is replaced under secondary clamping and fixing of the clamping and fixing mechanisms, and therefore a worker can conveniently and stably transfer the mechanical and electrical equipment; and in the transferring process, the clamping and fixing mechanisms are adjusted to ascend and descend through the lifting adjusting mechanism, so that the worker can conveniently clamp and position the mechanical and electrical equipment of different types, and the flexible usability of thetransfer device is improved.

The invention relates to the technical field of soil collection, in particular to depth-adjustable portable soil collection drilling equipment. The depth-adjustable portable soil collection drilling equipment at least comprises a fixing frame a supporting frame, wherein a rotating motor is fixedly arranged at the top part of the fixing frame, a connecting rod is clamped and fixed to the output end of the rotating motor, a drill rod is arranged at the end of the connecting rod and comprises a fixing cylinder, the fixing cylinder is fixed to the end of the connecting rod, a movable cylinder is slidably arranged on the outer wall of the fixing cylinder, the supporting frame is located outside the fixing frame, lifting frames are arranged at the tops, close to the two ends, of the supporting frame, lifting plates are fixedly connected to the ends of piston rods of electric push rods arranged at the top parts of the lifting frames, and the ends of the lifting plates are fixed to the outer walls of the fixing frames; and the top part of the fixed cylinder communicates with a cavity, a discharging plate is slidably arranged in the cavity, the top part of the discharging plate is connected with the end of the connecting rod, and a bolt is inserted between the outer wall of the discharging plate and the portion, close to the top, of the fixing cylinder. The depth-adjustable portable soil collection drilling equipment can adjust the soil collecting depth conveniently, the soil can be horizontally collected without being supported by hands, and the collected soil can be conveniently discharged.

The invention relates to a welding fixture of a high voltage potential fixing plate. The welding fixture of the high voltage potential fixing plate is accurate in welding position, low in ejective product rate and high in welding efficiency. The high voltage potential fixing plate is in a ring shape, a plurality of screw-hole-shaped terminals are arranged on the outer wall of the fixing plate, anaxial notch is arranged on the fixing plate, the welding fixture of the high voltage potential fixing plate comprises a tool body in a ring shape, the tool body comprises an inner ring and an outer ring, the outer ring is higher than the inner ring, the inner diameter of the outer ring is equal to the outer diameter of the high voltage potential fixing plate, and first grooves used for containingthe terminals and matched with the terminals in position are arranged on the outer ring. According to the welding fixture, the fixing plate is placed into the tool body matched with the fixing plate in shape, the single terminals are placed on the first grooves to be welded, the positions are fixed, manual terminal supporting is avoided, and welding becomes simple and accurate.

The invention relates to a supporting device for machining of pipe and bar type materials. The supporting device comprises a fixed supporting structure and a height adjusting system; a height adjusting groove is formed in a supporting base; a height adjusting spring is connected with the supporting base through the height adjusting groove; a height adjusting ring is connected with the supporting base through a height adjusting ring pulley; and the fixed supporting structure is connected with the height adjusting system through the height adjusting spring and the height adjusting ring.

The invention discloses a back door ancillary supporting tool which comprises a bottom supporting assembly, a left side body supporting assembly and a right side body supporting assembly. The bottom supporting assembly comprises a limiting supporting block, a transferring block and a bottom supporting block which are sequentially and fixedly connected from top to bottom; and the bottom supportingassembly is supported between the bottom of a back door and the tail of a car side body, the left side body supporting assembly comprises a left supporting block and a left positioning block which arefixedly connected and is supported between the left side of the back door and the left side of the car side body, and the right side body supporting assembly comprises a right supporting block and aright positioning block which are fixedly connected and is supported between the right side of the back door and the right side of the car side body. According to the back door ancillary supporting tool, a gap between the back door and the side body is kept through the bottom supporting assembly, the left side body supporting assembly and the right side body supporting assembly, natural falling ofthe back door due to gravity is avoided, the actual installing state of the back door is simulated, the accuracy and the stability of the assembly size are effectively guaranteed, manual supporting of the back door through a worker is avoided, and the working efficiency is improved.

The invention relates to the technical field of motor stator machining equipment, in particular to a multifunctional motor stator part machining device. The device comprises an operation table, an annular supporting base is fixedly connected to the top face of the operation table, a circular base is fixedly connected to the top face of the annular supporting base, a plurality of limiting holes areannularly formed in the top face of the circular base at equal angles, a shaft rod is rotatably connected to the top face of the operation table, the top of the shaft rod penetrates through the circular base and is fixedly connected with an air cylinder, the outer side wall of the top of the shaft rod is movably sleeved with a sleeve, and the top of the sleeve is fixedly connected with the outputend of the air cylinder. The output end of the air cylinder moves downwards to drive the sleeve to move downwards, connecting rods around the sleeve are gradually unfolded in the direction away fromthe shaft rod at the moment, the connecting rods push an extrusion plate to move in the direction away from the shaft rod, the extrusion plate extrudes the inner side wall of a motor stator part, uniform extrusion of a stator winding is achieved, and the production efficiency of the motor stator part is improved.

The invention belongs to the field of slaughtering, and particularly relates to a livestock bloodletting device for positioning the neck according to the forelimbs and a using method of the livestock bloodletting device. The livestock bloodletting device comprises a base, wherein two supporting plates are fixedly connected to the base, a concave containing plate is rotatably connected between the two supporting plates, and an air cylinder is fixedly connected to the base; and the output end of the air cylinder is fixedly connected with the concave containing plate, a closing plate is fixedly connected to an end opening in one side of the concave containing plate, and two frames are fixedly connected to the concave containing plate. Two fixing openings can limit the two forelimbs of a pig and prevent the forelimbs of the pig from stretching to shield the neck, an electromagnetic plate can be powered on to generate magnetism to repel a magnetic sliding plate through the arranged electromagnetic plate, two clamping blocks can rapidly clamp and stabilize the forelimbs of the pig, the trouble of manual supporting or rope binding is avoided, and the manpower is greatly saved.

The invention belongs to the technical field of medical puncture brackets, in particular to an ultrasound-guided nerve block puncture bracket for the anesthesiology department, aiming at the unsteady fixation, follow-up, and difficulty in controlling the tightness of the anesthesiology department puncture bracket fixed on the ultrasonic probe in the prior art problem, and propose a solution; the technical scheme of the present invention includes a suction cup seat, a counterweight is arranged on the sucker seat, a vertical bar is provided on the top of the counterweight, and a collar is slidably installed on the outer side of the vertical bar, and the outer side of the collar is threaded. There is a locking bolt, and the end of the locking bolt extends into the collar and contacts with the vertical rod. A telescopic rod is arranged on the outside of the collar, and a sleeve is connected to the output end of the telescopic rod, and a frame structure is connected to the sleeve. The ultrasound-guided nerve block puncture bracket for the anesthesiology department of the present invention has a simple structure and is easy to operate. shift problem.

The invention relates to the field of lithium battery laser welding devices, in particular to a lithium battery laser welding device for a new energy automobile and a using method. The lithium battery laser welding device comprises a workbench, a laser welding device, a fixing mechanism, a storage mechanism and a feeding mechanism. According to the lithium battery laser welding device for the new energy automobile, through cooperation of a first spring, a movable limiting plate and a supporting plate, lithium battery cores with different diameters can be stably clamped, meanwhile, under the cooperation of an adjusting bolt and the first spring, the height of a first roller is adjusted, and under the cooperation of the first roller and a second roller, the electrode slices with different thicknesses can be conveyed, so that the structure is simple and the universality is higher, and the mechanical cost is greatly reduced. The automatic placement of lithium battery cells can be realized through the cooperation of the two conveying belts and the supporting plate, the automatic feeding and placement of the electrode slices are realized under the cooperation of the material storage mechanism and the feeding mechanism, the production continuity is guaranteed, and the production efficiency is improved.

The invention relates to a self-locking lifting hook, which has an unsymmetrical U shape consisting of a lifting hook main body (1-1) and a subsidiary side hook body (1-2), and is characterized in that a transverse groove (1-3) is arranged in the subsidiary side hook body (1-2), and an automatic elastic locking piece consisting of a steel ball (2), a spring (3) and an adjusting bolt (4) is arranged in the groove; and the inner side diameter of the transverse groove (1-3) is smaller than the ball diameter of the steel ball (2), and the adjusting bolt (4) is arranged on the outer side of the transverse groove (1-3) through a thread structure. The self-locking lifting hook not only has a simple structure, but also achieves the connection and the disconnection with a lifting hoisting ring through an elastic locking structure arranged on the subsidiary side hook body and avoids the common manual supports during the conventional lifting, so the self-locking lifting hook has very perfect utilization safety and reasonable use function.

The invention discloses a magnetizing head water-cooling circulation system, and the system comprises a base, wherein a magnetizing round pipe is fixedly arranged on the upper side of the base, a coilis wound around the outer ring of the magnetizing round pipe, a fixed device is arranged on the inner side wall of the magnetizing round pipe, two symmetrical mounting blocks are fixedly connected tothe upper side wall of the base, and a spiral groove is formed in the concave part of the mounting block. The invention relates to the technical field of magnetizing magnetic heads, in particular toa magnetizing magnetic head water-cooling circulation system, which utilizes parts such as hoses, a first condensation block, a first condensation hole, a mounting block, a through hole, a second condensation block and the like to absorb heat generated by a coil; water in the three hoses passes through the mounting block to absorb the heat, and the heat absorbed by the water passing through the mounting block is absorbed by the first condensation block when flowing through the first condensation hole or absorbed by the second condensation block when flowing through the second condensation hole, so the heat dissipation efficiency is improved, the service life of the water-cooling circulation system is prolonged, and the service life of the magnetizing magnetic head is prolonged.

The invention belongs to the field of slaughtering, and in particular relates to a livestock bloodletting device for positioning the neck according to the forelimbs and a method for using the same. A concave placement plate, the base is fixedly connected with a cylinder, and the output end of the cylinder is fixedly connected with the concave placement plate, one side port of the concave placement plate is fixedly connected with a closing plate, and the concave placement plate is fixed Connection has two frames. The present invention can limit the position of the two forelimbs of the pig through the two fixed openings, avoiding the stretching of the forelimbs of the pig to cover the neck, and through the provided electromagnetic board, the electromagnetic board can be energized to generate magnetism to repel the magnetic slide plate, so that the two A clamp block can quickly clamp and stabilize the forelimb of the pig, avoiding the tediousness of manual support or tying with ropes, and greatly saving manpower.

The invention discloses a current transformer replacing device for a power distribution cabinet. The current transformer replacing device comprises an upper frame and a lower frame. The lower frame is used for being fixed to a shell of the power distribution cabinet. The upper frame can be movably arranged on the lower frame through a dragging assembly and is provided with a supporting board for horizontally supporting a current transformer of the power distribution cabinet. The supporting board can be arranged on the upper frame in a rotating mode and provided with a clamping assembly which is used for fixing a fixing beam of the power distribution cabinet. When the current transformer replacing device is used, firstly, the lower frame is fixed to the shell, the fixing beam is firmly fixed through the clamping assembly, and then the fixing beam is detached from the shell; secondly, the upper frame is driven to move towards the outside of the power distribution cabinet along the lower frame, and the supporting board is rotated to be horizontal; thirdly, the old current transformer is detached and a new current transformer is installed; finally, the supporting board is rotated to the original position, the upper frame is moved to the original position, and the fixing beam is assembled on the shell again. According to the current transformer replacing device, the current transformer is prevented from being held manually, labor intensity can be easily relieved, and operation is convenient.

The invention relates to V-shaped framework hoisting construction auxiliary equipment, and belongs to the technical field of substation framework construction. The V-shaped framework hoisting construction auxiliary equipment comprises a vehicle body and a driving device used for driving the vehicle body to walk. An installation beam is fixedly arranged on the vehicle body, two supporting rods parallelly arranged are arranged on the installation beam, and a clamping assembly used for clamping rod bodies of V-shaped frameworks is arranged at the end, away from the vehicle body, of each supporting rod. When the V-shaped frameworks are hoisted by a crane, a worker clamps the rod bodies of the V-shaped frameworks through the clamping assemblies, then, the vehicle body is driven to walk by the driving device, the vehicle body drives the installation beam and the supporting rods to move, the clamping assemblies on the supporting rods and the crane jointly act to drive the V-shaped frameworksto move, when the rod bodies of the V-shaped frameworks move right above installation cup openings, the vehicle body is stopped to enable the positions of the rod bodies to maintain unchanged, and then, the V-shaped frameworks are put down; and manual supporting of the rod bodies is avoided, the safety of construction is improved, the V-shaped frameworks can be rapidly hoisted to the installationcup openings, and the construction efficiency is improved.

The invention discloses a groove type workpiece machining device for machining. The groove type workpiece machining device comprises a device body, the device body is provided with a base, a fixing frame A is arranged at the left end of the upper portion of the base, a groove type workpiece mounting frame is arranged at the top of the fixing frame A, a fixing column is arranged inside the fixing frame A, connecting sleeves are arranged on the fixing column, connecting rods are arranged on the outer walls of the connecting sleeves, and a positioning plate is arranged on the outer sides of the connecting rods; and a fixing frame B is arranged at the right end of the upper portion of the base, a slide way is arranged at the top of the fixing frame B, a motor is arranged on the slide way, anda drill bit is arranged at the output end of the motor. The device is simple in structure and convenient to use, the groove type workpiece with a thermocouple to be buried can be quickly punched, holding by hands is prevented during punching, so that the operation safety is improved, the groove type workpiece is installed stably under the action of the groove type workpiece mounting frame during punching, so that fracture of the drill bit caused by shaking of the groove type workpiece is effectively reduced, the resources are saved, the punching efficiency is also effectively improved, and thepracticability is high.

The invention belongs to the technical field of medical apparatus and instruments, and particularly discloses an intensive care patient safe transport device which comprises a bed board, bed legs and universal wheels. Slide rails are arranged on the bed legs, a first penetrating opening and a second penetrating opening are formed in two sides of the bed board, a first fence assembly capable of penetrating the first penetrating opening and a second fence assembly capable of penetrating the second penetrating opening are further arranged on the two sides of the bed board and are distributed on the two sides of the bed board in a mirror symmetry manner, and a tool box is further arranged on a side of the bed board. The intensive care patient safe transport device has the advantages that a protective cover can be formed by the first fence assembly and the second fence assembly, a patient can be protected in the protective cover, and accordingly the condition that certain persons accidentally run into the intensive care patient safe transport device or medical staffs in transport procedures can be prevented.

The invention belongs to the field of auxiliary overturning, in particular to an auxiliary turning-over device for inspection of people lying in bed. In accordance with the problems that a patient lying in bed often needs medical personnel to manually turn over during inspection, physical strength of the medical personnel is reduced caused by turning over of a plurality of the patients, besides, long-term inspection is not facilitated due to manual supporting of the medical personnel, and the using requirements are not met, the invention provides the following scheme of the auxiliary turning-over device. The auxiliary turning-over device comprises a device body, wherein fixing grooves are symmetrically formed in two sides of the device body; a supporting plate is movably arranged in the fixing grooves; a rotating groove is formed in one side of each fixing groove, and is formed in the device body; and a moving block is arranged on one side adjacent to each rotating groove, of the corresponding supporting plate. The auxiliary turning-over device disclosed by the invention is reasonable in structure, a person lying in bed can be assisted to turn over by the supporting plates, manualsupporting of the medical personnel is avoided, physical strength consumption of the medical personnel is reduced, the operation is simple and convenient, and the using requirements are met.

The invention discloses a veterinary long-handle injection gun with a positioning function. The veterinary long-handle injection gun with the positioning function comprises a workbench, wherein a fixing plate is fixedly arranged at the top end of the workbench through a supporting rod, an injector is arranged on one side of the fixing plate in a contact mode, the injector comprises an injection shell, a piston is arranged in the injection shell, a push rod is arranged at one end of the piston, the push rod penetrates through the injection shell and extends to the outside of the injection shell, scale marks are carved on the injection shell, and a penetrating needle is arranged at one end of the injection shell and penetrates through the fixing plate. The veterinary long-handle injection gun has the beneficial effects that a sponge pad is smeared with conductive oil, finally, voltage is transmitted to an animal body, the effects of dredging nerves and massaging tension parts are achieved, animal muscle tension is relieved, stable injection is achieved, the voltage is not prone to being too high, a rubber hard hose has good stretching and bending effects, the positioning effect is good after stretching and bending, and therefore, the sponge pad is in stable contact with the animal body and is attached to the injection edge part.

The invention discloses a groove type workpiece machining device for machining. The groove type workpiece machining device comprises a device body, the device body is provided with a base, a fixing frame A is arranged at the left end of the upper portion of the base, a groove type workpiece mounting frame is arranged at the top of the fixing frame A, a fixing column is arranged inside the fixing frame A, connecting sleeves are arranged on the fixing column, connecting rods are arranged on the outer walls of the connecting sleeves, and a positioning plate is arranged on the outer sides of the connecting rods; and a fixing frame B is arranged at the right end of the upper portion of the base, a slide way is arranged at the top of the fixing frame B, a motor is arranged on the slide way, anda drill bit is arranged at the output end of the motor. The device is simple in structure and convenient to use, the groove type workpiece with a thermocouple to be buried can be quickly punched, holding by hands is prevented during punching, so that the operation safety is improved, the groove type workpiece is installed stably under the action of the groove type workpiece mounting frame during punching, so that fracture of the drill bit caused by shaking of the groove type workpiece is effectively reduced, the resources are saved, the punching efficiency is also effectively improved, and thepracticability is high.

The invention discloses a water-cooling circulation system for a magnetizing magnetic head, comprising a base, a magnetizing circular tube is fixedly arranged on the upper side of the base, and a coil is wound around the outer ring of the magnetizing circular tube, and the magnetizing circular The inner side wall of the pipe is provided with a fixing device, the upper side wall of the base is fixedly connected with two symmetrical mounting blocks, and the inner recess of the mounting blocks is provided with a spiral groove. The invention relates to the technical field of magnetizing magnetic heads. The water-cooling circulation system of the magnetizing magnetic head utilizes parts such as a hose, a first condensation block, a first condensation hole, a mounting block, a through hole and a second condensation block to install the heat generated by the coil. Block absorption, the heat absorbed by the water of the three hoses through the installation block, the heat absorbed by the water passing through the installation block is absorbed by the first condensation block when it flows through the first condensation hole or absorbed by the second condensation block when it flows through the second condensation hole Absorption increases the efficiency of heat dissipation, improves the use time of the water cooling circulation system, and prolongs the service life of the magnetic head.

The invention discloses a planing machine positioning clamp for Roots blower impellers. The planing machine positioning clamp for the Roots blower impellers comprises a main body and an electric pushrod; a positioning sliding block is arranged at the lower end of the main body, a workbench is arranged on the outer side of the positioning sliding block, a positioning bolt is arranged inside the positioning sliding block, a servo motor is arranged inside the main body, a limiting rod is arranged at the output end of the servo motor, an electric rotating shaft is arranged on the outer side of the limiting rod, a positioning bin is arranged on the outer side of the electric rotating shaft, the electric push rod is arranged inside the positioning bin, and a connecting rod is arranged at the output end of the electric push rod. Through mutual cooperation of the arranged servo motor and the limiting rod, the rotating angle of the electric rotating shaft can be flexibly adjusted, so that theangles of the impellers can be adjusted according to the requirements, and the arranged electric rotating shaft can further enable the positioning bin to be adjusted at multiple angles; and subsequentuse of the device is prevented from being influenced by inconvenient angle adjustment of a worker during use.