180results about How to "Prevent falling damage" patented technology

The invention relates to the technical field of photovoltaic panel supports, and provides a clamping type photovoltaic panel support which comprises a supporting platform, the top end of the supporting platform is provided with an installation protection structure, and the installation protection structure comprises a storage assembly, an installation assembly and a protection assembly; according to the invention, when wind power is too large, the photovoltaic panel is deflected to enter the interior of the mounting table, a third motor is started according to the wind direction to drive a second rotating shaft to rotate, the second rotating shaft drives a first gear to rotate, the first gear rotates and is engaged with a rack to drive a supporting sliding block to move, the supporting sliding block drives a V-shaped wind guide plate to move, and when the V-shaped wind guide plate moves to the corresponding wind direction, the V-shaped wind guide plate stops moving; the V-shaped air guide plate is arranged on the mounting table, air blows the V-shaped air guide plate, the V-shaped air guide plate can apply force to flowing air, the force changes the direction of the flowing air, and the flowing air flows along the two slopes of the V-shaped air guide plate and then circulates through the upper portion of the mounting table and the lower portion of the supporting platform, so that air resistance of the mounting table and the supporting platform is reduced, and the service life of the mounting table is prolonged. And the photovoltaic panel is prevented from falling off and being damaged by overlarge wind power.

The invention discloses a tool and method for disassembling and assembling a catalytic flue gas turbine rotor, the tool comprises a rotor moving folding support, a coupling side lifting shaft support, a wheel disc side lifting shaft support and a tool guide rail, the rotor moving folding support is used for bearing the flue gas turbine rotor and realizing horizontal movement; the coupler side lifting shaft support is used for lifting a range hood rotor from one side of a coupler through a lifting shaft, the wheel disc side lifting shaft support is used for lifting the range hood rotor from one side of a wheel disc through a lifting shaft, and the tool guide rail is located on the ground and serves as a ground rail to bear all the supports. According to the tool, the operation difficulty of disassembly and assembly can be reduced, the safety coefficient can be greatly improved, accurate control over movement of the rotor can be achieved, the rotor is stably, safely and reliably disassembled and assembled, the traditional method that a plurality of chain blocks are mainly adopted for disassembly and assembly of the range hood rotor is thoroughly changed, and the disassembly and assembly efficiency is improved. And hidden dangers such as accessory damage and personal injury in the disassembly and assembly process are avoided, and the working efficiency is improved.

The invention discloses a test device for vehicle gauge semiconductor chip packaging, and relates to the field of chip test equipment.The test device comprises a test host, a test module and a bearing table are installed on the test host, a push broach used for testing is installed on the test module, and an integrated seat is installed on the bottom side of the test module; the device further comprises a pressing protection device, the pressing protection device is installed on the bottom side of the integrated base, the push broach is located in the pressing protection device, and the pressing protection device is used for protecting the push broach. It needs to be explained that in the embodiment of the invention, the push broach is integrally sealed through the two lower protection boxes and the two upper protection boxes, the problem that the push broach is collided or eroded by the external environment due to long-term exposure is avoided, and the safety of the push broach is effectively guaranteed; in addition, when the test module is reset, the cleaning brush rotates to clean the push broach, cleanliness of the push broach is guaranteed, and then the test effect of the push broach is guaranteed.

The utility model provides a constant temperature device for a chromatographic column, which comprises a constant temperature box body, constant temperature structures, a clamping structure, a chromatographic column body and a pushing structure, the two sides of the inner wall of the constant temperature box body are respectively provided with a group of constant temperature structures, each constant temperature structure comprises a heating wire and a single chip microcomputer, and the chromatographic column body is arranged in the constant temperature box body. The outer surface of the chromatographic column body is sleeved with two clamping structures, and one side of each clamping structure is provided with a pushing structure. According to the device, the clamping structures are arranged, the clamping plates are extruded, the telescopic rods are extruded by the clamping plates, the springs are extruded while the telescopic rods enter the sleeves, the springs contract to generate elastic force, an operator places a chromatographic column body between the two sets of clamping plates in the two sets of mounting supports, the operator releases the clamping plates, and under the elastic force action of the springs, the chromatographic column body is clamped by the clamping plates. The spring resets, the telescopic rod is pushed to reset, the clamping plate is pushed to clamp the chromatographic column body, and the situation that the chromatographic column falls off and is damaged due to loosening of the buckle is effectively avoided.

The invention provides an automatic carrying robot which comprises a base, a rotating base is arranged at the top of the base, a mechanical arm is arranged on the rotating base, a connecting rod is arranged at the tail end of the mechanical arm, a mounting plate is arranged on the connecting rod, and a pair of clamping electric push rods are symmetrically arranged in the mounting plate; clamping plates are arranged on telescopic shafts of the pair of clamping electric push rods, and moving wheels are arranged at the bottom of the base; connecting plates are vertically arranged on the side walls, away from each other, of the pair of clamping plates in a sliding mode, supporting electric push rods are arranged on the side walls of the pair of connecting plates, and L-shaped supporting plates used for supporting the bottom of a workpiece are arranged on telescopic shafts of the pair of supporting electric push rods. And lifting driving assemblies used for driving the connecting plates to move in the vertical direction are arranged in the clamping plates. The structure is reasonable, the falling damage prevention effect is good, and the clamping and carrying quality is high.

The utility model discloses a protective structure for a geographic information surveying instrument, which comprises a machine table, a reinforcing component is arranged at the top of the machine table, and the surveying instrument body is arranged at the top of the machine table by arranging the machine table, the reinforcing component, the surveying instrument body and a protective component. Then, a user holds a rotating rod on the right side of a right fixing block by hand to rotate a bidirectional lead screw, so that the bidirectional lead screw rotates in the fixing block, and reinforcing plates located on the two sides of the surface of the bidirectional lead screw synchronously move towards the surveying instrument body; then the surveying instrument body is clamped by the reinforcing plate, so that the surveying instrument body is reinforced and positioned, the surveying instrument body is prevented from being subjected to surveying and mapping operation by strong wind in subsequent use, and stable connection between the surveying instrument body and a machine table can be ensured; therefore, the measuring precision is guaranteed, and the surveying instrument body is prevented from falling off and being damaged.

The application discloses a hoist winch fault detection device and relates to the technical field of fault detection, which comprises a support chassis. When the servo motor fails during use, the heavy object rapidly descends with the steel wire rope, the steel wire rope drives the winding roller to rapidly rotate, the winding roller drives the driving gear to rapidly rotate, the annular gear ring drives the planetary gear and the sun gear to rapidly rotate, and the tooth defect gear is driven to rapidly rotate. At this time, the rotation speed sensor senses that the rotation speed of the tooth defect gear is abnormally accelerated, and the signal is transmitted to the controller. The hydraulic rod is started and controlled through the controller, the hydraulic rod drives the pushing block to move forward, the pushing block drives the sliding rod to move forward along the horizontal direction of the movable groove when moving, the locking block moves upward until being engaged with the corresponding locking groove, the locking disc is rapidly locked and stopped, and rapid self-locking is realized.

The invention discloses a corrosion resistance detection device for electric meter box production, and relates to the technical field of corrosion resistance detection.The corrosion resistance detection device comprises a bottom plate, a U-shaped frame plate is fixed to the top surface of the bottom plate, a clamping assembly is arranged in the middle of the inner wall of the U-shaped frame plate and comprises a U-shaped groove frame, and the U-shaped groove frame is fixed to the middle of the inner wall of the U-shaped frame plate; the device comprises a U-shaped frame plate, a double-groove screw penetrates through the left side and the right side of the inner wall of the U-shaped frame plate and is rotationally provided with a double-groove screw, annular pipe blocks are slidably installed on the outer walls of two spiral grooves of the double-groove screw, two concentric-square-shaped plates are fixedly installed on the outer walls of the two annular pipe blocks correspondingly, and two rectangular shells are fixed to the inner walls of the two concentric-square-shaped plates correspondingly; the two rubber blocks tightly abut against the two sides of the electric meter box, so that the problems that the paint surface on the surface of the electric meter box is easily scratched by a clamp, corrosive liquid directly makes contact with metal in the electric meter box, and corrosion resistance detection data of the electric meter box are not accurate are solved.

The present invention discloses a movable tile display rack and an installation method thereof, comprising a display rack main body and a top fixed plate, wherein slide grooves are distributed in parallel on the top fixed plate, and the top of the display rack main body is slidably connected to a slide groove, and the bottom of the display rack main body is fixedly connected to a supporting base, the width of the supporting base is greater than the width of the display rack main body, tiles are placed on the upper part of the protruding part of the supporting base, the width of the protruding part of the supporting base is greater than the width of the tiles, and two rollers are fixedly connected to the bottom of the supporting base, two limiting hooks are provided on both sides of the rollers, and the upper part of the limiting hooks is fixedly connected to the bottom of the supporting base, a lower fixed plate is provided on the ground below the roller, and slide grooves are distributed in parallel on the lower fixed plate, and the slide grooves and the slide grooves are used in matching manner. In this invention, the rollers and protruding layers can limit the moving position, and the tiles are set to be consistent in length and width with the display rack main body to reduce the floor space occupied.

The present invention discloses a hydraulic lifting auxiliary device for an orchard machine, and relates to the technical field of orchard machines, including a mounting seat, wherein the upper end of the mounting seat is fixedly connected with four guide rods, and the four guide rod side walls are slidably connected with a lifting seat together, and the upper end of the lifting seat is fixedly connected with a plurality of mounting frames, and the upper end of the mounting seat is fixedly connected with a hydraulic oil cylinder, and the movable end of the hydraulic oil cylinder is fixedly connected with the lower end of the lifting seat; a limiting mechanism, wherein the limiting mechanism comprises a mounting plate fixedly connected to the upper ends of the four guide rods, and the lower end of the mounting plate is symmetrically provided with two slide grooves. In the present invention, when the first slider slides to the most side end of the slide groove, the first slider cannot continue to slide, and then the lifting seat cannot continue to move upward, and the lifting cannot continue at this time, and the extension length of the hydraulic oil cylinder is limited to avoid excessive extension of the hydraulic oil cylinder, which causes the agricultural machinery to be lifted too high, and may cause damage to the frame of the orchard machine.

The present invention relates to the field of semiconductor detection technology, and discloses: an ultrasonic detection device for semiconductor defect detection, comprising: a box body, a barrel body, a fixed component, a rotating component and a lifting component, the surface of the box body is fixedly connected with a control button, the inner wall of the box body is fixedly connected with an ultrasonic component, the inside of the box body is fixedly connected with the barrel body, the inside of the box body is provided with a fixed component, the inside of the barrel body is provided with a driving component, a rotating component and a lifting component, through the coordinated use of an air supply pipe and a fixed plate, an external gas source is connected with the air supply pipe, and then the external gas is transported to the inside of the air supply cylinder through the air supply pipe, thereby driving the fixed cylinder to move, and the fixed cylinder drives the fixed plate to contact with the semiconductor through a sliding cylinder, when the fixed plate continues to squeeze the semiconductor, the fixed plate squeezes the spring through the sliding cylinder to retract the spring, thereby preventing the fixed plate from damaging the semiconductor, thereby achieving a lossless fixation effect.

The invention discloses a concentrated crystallization device for preparing palladium chloride, comprising a frame, a machine head, a flask, a water bath heating structure, a transfer tube, a feed tube, a condenser, and a collecting bottle, and also comprising: a split connection structure, wherein the flask comprises a straight segment connected to the machine head, a side of the straight segment away from the machine head is connected with a flask segment, the split connection structure comprises a sealing cylinder nested on the outside of the straight portion of the flask segment, a sealing net is arranged at the opening of the flask segment, the straight segment and the flask segment are wrapped with a closed rubber sleeve on the outside, and a pressure dividing component is arranged on the outer movable sleeve of the closed rubber sleeve; a cantilevered accommodating structure, comprising a mounting cylinder arranged on the inner side of the sealing net, the end of the mounting cylinder is connected to a storage rack, the storage rack is cantilevered in a circular cavity of the flask segment, and the interior of the storage rack is filled with anti-boiling particles. The invention can allow the interior of the flask to be provided with the anti-boiling particles without affecting the normal formation of a liquid film, and can also better ensure the stability of the flask.

The present invention discloses a test device for automotive semiconductor chip packaging, which relates to the field of chip testing equipment, including a test host, on which a test module and a load platform are installed, on which a push knife for testing is installed, and on the bottom side of the test module is installed an integrated seat; it also includes a clamping protection device, which is installed on the bottom side of the integrated seat, and the push knife is located in the clamping protection device, and the clamping protection device is used to protect the push knife. It should be noted that in the embodiment of the present invention, the push knife is completely enclosed by two lower protective boxes and two upper protective boxes to avoid problems such as long-term exposure of the push knife to collision or erosion by the external environment, thereby effectively ensuring the safety of the push knife; in addition, when the test module is reset, the cleaning brush is rotated to clean the push knife, ensuring the cleanliness of the push knife, thereby ensuring the test effect of the push knife.

The guide wheel comprises a walking device and an automatic lubricating device, the walking device comprises a walking frame, the automatic lubricating device is fixedly arranged at the top of the walking frame, a lubricating oil tank is arranged at the bottom of the automatic lubricating device, and an oil dripping opening and a protective cover are arranged at the bottom and the top of the lubricating oil tank respectively. A rotating motor is arranged in the protective cover, a bevel gear is arranged at the tail end of the rotating motor, a rotating rod is arranged at the tail end of the bevel gear, a rotating block is arranged at the tail end of the rotating rod, a through hole is formed in the rotating block, and the through hole is movably communicated with the oil dripping opening. The automatic lubricating device is arranged on the walking frame, the rotating motor of the automatic lubricating device drives the through hole in the rotating block to be movably communicated with the oil dripping opening in the bottom of the lubricating oil tank, lubricating oil circularly flows out and flows to the lubricating connecting mechanism of the guide wheel through the connecting pipeline, and the guide wheel is circularly lubricated; the lubricating frequency can be adjusted by adjusting the rotating speed of the rotating motor, and the lubricating device is novel in structure, high in practicability and suitable for popularization.

The utility model relates to the technical field of excavator bucket rod lifting appliances, and discloses a novel excavator bucket rod lifting appliance which comprises a lifting appliance body, a spring groove is formed in the lifting appliance body, a limiting block is connected in the spring groove in a sliding mode, and an adjusting box is fixedly connected to the right end of the lifting appliance body. A sliding plate is slidably connected into the adjusting box, a pull rod is fixedly connected to the right end of the sliding plate, a pull block is fixedly connected to the right end of the pull rod, and an insertion rod is fixedly connected to the left end of the sliding plate. According to the novel excavator bucket rod lifting appliance, a worker pulls a pull block to drive a sliding plate to move, the sliding plate drives an inserting rod to relieve limiting between the inserting rod and an inserting hole, so that fixing of a limiting block is relieved, and the worker downwards moves the limiting block to enable the lifting appliance body to be hooked with an excavator bucket rod and upwards moves the limiting block to enable the inserting rod to be aligned with the inserting hole; and a worker pushes the pull block to fix the position of the spring groove, so that the worker is prevented from falling off and being damaged when hooking the excavator bucket rod.

The utility model relates to the technical field of computer supports, and discloses a notebook computer support which comprises a support body, a fixing structure and a supporting structure, the fixing structure comprises a clamping plate, one side of the clamping plate is rotationally connected with a fixing base through a first rotating shaft, the first rotating shaft is sleeved with a bead-stringing torsional spring, and the bead-stringing torsional spring is connected with the supporting structure. A fixed bottom plate is hinged to the bottom of the clamping plate through a bead torsion spring, the supporting structure comprises two first supporting plates and two second supporting plates, pressing switches are arranged at the two ends of the first supporting plates and the two ends of the second supporting plates, each pressing switch comprises a first button, and a second button is embedded in each first button. According to the notebook computer support, the fixing structures are fixedly connected to the two sides of the support body, firmness is improved, the supporting feet are arranged on the two sides of the lower end of the support body, the notebook computer is stably fixed to the support body through the fixing structures and the supporting feet together, and the notebook computer is prevented from falling off from the support body and being damaged.

The heavy single-arm crane comprises a base, an X-axis base is arranged at the upper end of the base, the X-axis base comprises a welding bottom frame, first guide rail sliding block pairs are arranged on the upper portions of the two ends of the welding bottom frame, and first racks are arranged at the upper ends of the first guide rail sliding block pairs; a moving assembly is arranged on the upper portion of the X-axis base and comprises a mounting frame, a second servo motor is arranged in the middle of the mounting frame, the output end of the second servo motor is connected with a second speed reducer, the output end of the second speed reducer is connected with a coupler, the coupler is connected with a main shaft, and second gears are arranged at the two ends of the main shaft. The second gear is meshed with a second rack of the cantilever assembly; first servo motors are arranged at the two ends of the mounting frame, the output ends of the first servo motors are connected with first speed reducers, and the output ends of the first speed reducers are connected with the first gears. Free walking in a two-dimensional space can be achieved, then accurate positioning is achieved, the accuracy of the workpiece hoisting position is guaranteed, and the structure is simple; and double-shaft linkage can be realized, and the hoisting efficiency is high.

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle anti-falling suite which comprises a connecting plate, the rear end of the connecting plate is fixedly connected with a connecting disc, the outer wall of the connecting disc is fixedly connected with a plurality of L-shaped rods around the center of the connecting disc in an annular array mode, and the top ends of the L-shaped rods are jointly and fixedly connected with an arc-shaped rod. The front end of the connecting plate is elastically connected with a connecting block through a buffer assembly, the front end of the connecting block is fixedly connected with a supporting plate, the two side walls of the supporting plate are fixedly connected with splicing blocks, and the unmanned aerial vehicle rotor wing protection frame can be fixed to a columnar or square unmanned aerial vehicle arm, can be suitable for unmanned aerial vehicle arms with different thicknesses, is good in adaptability, and can be used for fixing the unmanned aerial vehicle arms. Therefore, installation of various unmanned aerial vehicles can be compatible, rotors of the various unmanned aerial vehicles are protected so as to prevent the rotors of the unmanned aerial vehicles from being in contact with the wall surface to be damaged due to falling when the unmanned aerial vehicles fly, the manufacturing cost and complexity are reduced, and convenience is brought to selection of users.

The utility model discloses a sorting chute and sorting equipment, wherein the sorting chute comprises at least one sorting port, the output end of the sorting port is provided with a lattice locking mechanism, the lattice locking mechanism comprises a lattice port blocking piece hinged at the lower end of the sorting port, the lattice port blocking piece is provided with a lattice locking rod, the axis of the lattice locking rod is parallel to a rotating shaft around which the lattice port blocking piece rotates, and the lattice locking rod is connected with the lattice port blocking piece. The grid locking rod is movably arranged on the grid opening blocking piece, at least one end of the grid locking rod extends out of the side portion of the grid opening blocking piece, the grid locking mechanism further comprises a rod limiting piece matched with the grid locking rod, the top of the rod limiting piece is provided with a limiting opening matched with the grid locking rod, and when the grid locking rod is located in the limiting opening, the grid opening blocking piece blocks the sorting sliding groove. According to the structure, the movable lattice locking rod is arranged at the lattice opening blocking piece, the limiting opening matched with the lattice locking rod is formed in the output end of the lattice opening, when the lattice opening blocking piece is closed, the lattice locking rod can automatically fall into the limiting opening under the action of gravity so that the lattice opening blocking piece can be locked, the structure is simple, and operation is convenient.

The utility model relates to an automatic traffic cone collecting and storing device, belongs to the technical field of traffic cone collecting and storing, and is simple in overall structure, convenient for collecting and storing traffic cones on roads, and convenient for fixing and limiting the collected traffic cones compared with the prior art. The stacked traffic cones are prevented from falling off and being damaged due to complex road conditions, and the practicability is good. The placing bin is fixedly welded on the base, and a plurality of positioning columns matched with the traffic cones are correspondingly arranged on the inner wall of the placing bin; the collecting and releasing assembly is arranged on the base, and the collecting and releasing assembly is used for collecting and placing the traffic cones; and each positioning assembly comprises two strip-shaped blocks, the two strip-shaped blocks are correspondingly welded to the outer wall of the containing bin, strip-shaped grooves are formed in the strip-shaped blocks, sliding plates are vertically and slidably connected into the strip-shaped grooves, and one ends of the sliding plates are fixedly connected with the inner walls of the strip-shaped grooves through a plurality of composite springs.

The utility model discloses an intermediate bulk container structure with an auxiliary liquid outlet, which relates to the technical field of intermediate bulk containers and comprises an intermediate bulk container body and a square steel frame. According to the ton barrel structure provided with the auxiliary liquid outlet, under the jacking transmission action of the hydraulic cylinder on the bearing plate, the rear end of the bearing plate is separated from the horizontal supporting base and deflects with connecting pins on the two sides of the front end of the base as the rotating center, so that a square steel frame borne by the top of the bearing plate inclines towards one side, and the liquid outlet is formed; the supporting plates fixed to the two sides of the front end of the bearing plate are matched with the bottom of the front face of the square steel frame in a clamped mode, the inclined square steel support is supported and prevented from falling off and being damaged, the safety of equipment during operation is improved, and the problem that in the prior art, due to the fact that the bottom of the ton barrel body is flat, materials in the ton barrel body cannot be discharged completely is effectively solved. And an emptying joint and an auxiliary liquid outlet joint are positioned at the bottom of the side surface of the ton barrel body, so that the defect that materials in the ton barrel body are difficult to discharge completely is overcome.

The present invention relates to the technical field of power supply devices, and discloses a power distribution cabinet that is easy to load and unload internally, including a cabinet body, a cabinet door installed on the cabinet body, and a mounting beam installed in the cabinet body, wherein the mounting beam includes a pair of vertical beams and a pair of horizontal beams, and a driving device is arranged between the cabinet door and one of the vertical beams, and a transmission device is arranged between the vertical beam and the horizontal beam, and the transmission device is in power transmission with the cabinet body. The present invention, through the arrangement of the driving device, drives the mounting beam to move outward while the cabinet door is opened, thereby enhancing the visibility of the accessories during installation, and at the same time, the mounting beam drives the transmission component to operate during the outward movement, and drives the clamping component and the fixing component to operate simultaneously, so that the clamping component no longer fixes the horizontal beam, and the fixing component no longer fixes the mounting seat, thereby solving the problem that the traditional power distribution cabinet is difficult to load and unload the accessories and the mounting beam due to the installation beam being too close to the inside and the corrosion of the screws by dust and condensed water.

The utility model belongs to the technical field of battery processing, and particularly relates to a clamp and welding equipment, and the clamp comprises a support, a first welding rod, a second welding rod and a clamping device, the clamping assembly comprises a first clamping piece and a second clamping piece which are used for clamping a workpiece, the first clamping piece and the second clamping piece are oppositely installed on the upper surface of the support, and the first clamping piece and the second clamping piece are located on the side of the first welding hole; the anti-falling assembly comprises a driving piece, a rotating arm and a bearing piece, the driving piece is installed on the lower surface of the support, the rotating arm is connected with the bearing piece, the bearing piece is used for bearing a falling workpiece, and the rotating arm is connected with the bearing piece. And the driving part is in transmission connection with the rotating arm to drive the rotating arm to rotate so that the bearing part can be located below the position between the first clamping part and the second clamping part, the workpiece can be prevented from falling off in the process that the clamp clamps the workpiece, and the equipment failure rate is reduced.

The utility model discloses a strawberry matrix seedling breeding device, which belongs to the technical field of strawberry cultivation and comprises a bottom plate, the top of the bottom plate is fixedly connected with a first support plate and a second support plate respectively, and one side, close to the second support plate, of the first support plate is rotatably connected with a first rotating plate. The device is provided with the first rotating plate, the second rotating plate, the placing plates, the counterweight rod and the angle fixing assembly, the first rotating plate and the second rotating plate drive the placing plates to rotate flexibly, and when the first rotating plate and the second rotating plate are placed horizontally, the placing plates are located on the same horizontal plane, so that seedlings obtain sufficient illumination, and the seedling survival rate is increased. The arrangement of a counterweight rod can ensure that a placing groove of a placing plate is constantly upward, an angle fixing assembly can fix a rotating plate I after the rotating plate I rotates to a specific angle, and an indicating block and a fan-shaped marking plate are arranged and are matched with each other, so that a worker can know the rotating angle of the rotating plate I; and a bolt in the angle fixing assembly can be conveniently inserted into a corresponding slot in the first rotating plate.

The utility model relates to the technical field of musical instruments, in particular to a melodica with a key protection function. The utility model provides the melodica with the function of protecting the keys, which can protect the melodica after the melodica is used, prevent the keys from being damaged and ensure the service life and the playing effect of the melodica. The melodica with the key protection function comprises a melodica, keys, a tail seat, a torsion spring, a sealing cover and the like, the tail seat is connected to the rear side of the melodica, the keys are arranged on the upper side of the melodica, and the sealing cover is rotationally connected to the tail seat. According to the utility model, the long protecting cover rotates on the rotating arm, then the rotating arm rotates on the double-side seat, the melodica covers the keys again, and then the sealing cover is clamped with the front cover lock, so that the effects of protecting the melodica, preventing the keys from being damaged and ensuring the service life and the playing effect of the melodica after the melodica is used are achieved.

The utility model provides a wafer overturning structure, which relates to the technical field of semiconductor processing, and comprises an overturning platform mounting plate and an overturning assembly, the overturning assembly comprises a motor arranged on the overturning platform mounting plate, the output end of the motor is provided with a rotating plate, the bottom of the rotating plate is fixedly provided with a cantilever, the cantilever is provided with an adsorption plate, and the adsorption plate is arranged on the overturning platform mounting plate. According to the utility model, the motor drives the rotating plate to rotate and drives the cantilever and the adsorption plate to realize wafer overturning, the parallel finger cylinder pushes the cylinder clamping plate to enable the centering clamping plate to move along the direction of the wafer so as to realize centering calibration of the wafer, and the first cylinder and the second cylinder are linked to adjust the telescopic stroke of the adsorption plate so as to adapt to different wafer sizes. The vacuum chuck is connected with an air channel through an air pipe connector to generate negative pressure to adsorb the wafer, then the motor is started, constant-speed rotation is achieved through the speed reducer, the cantilever drives the wafer to complete turning over, and therefore the wafers of different sizes can be turned over in a compatible mode.

This application discloses a multi-camera panoramic stitching and target recognition device, comprising: a drone and an optoelectronic pod mounted on its bottom mounting base. A connecting plate is provided at the top of the optoelectronic pod, and a mounting plate is provided on the lower end face of the mounting base. The connecting plate is tightly attached to the lower end face of the mounting plate. An anti-slip assembly is provided between the mounting plate and the connecting plate, comprising an upper anti-slip plate and a lower anti-slip plate. The upper anti-slip plate is located on the lower end face of the mounting plate, and the lower anti-slip plate is located on the upper end face of the connecting plate, engaging with the upper anti-slip plate to prevent the connecting plate from loosening or slipping. The multi-camera panoramic stitching and target recognition device proposed in this application uses toothed engagement to assemble the optoelectronic pod onto the bottom of the drone, preventing the optoelectronic pod from being affected by air resistance and causing it to sway at the bottom of the drone, thus preventing deformation or breakage of the bolts and avoiding damage due to bolt deformation or breakage, thereby improving the stability of the optoelectronic pod installation.

The utility model relates to the technical field of detection devices, and discloses a portable centralized industrial area power transmission and distribution passing current and voltage detection device which comprises a detection device body and a hanging rope, fixing frames are fixedly installed on the four faces, close to the bottom end, of the detection device body, and the number of the fixing frames on the four faces of the detection device body is two. The hanging rope movably penetrates through the fixing frames, and a buffer mechanism is arranged between every two fixing frames on the four faces of the detection device body. By pulling the hanging rope at any position of the four surfaces of the detection device body, the hanging rope bends and protrudes outwards, so that a person can conveniently hang the detection device body on the body or other articles at any angle through the hanging rope, and the person can conveniently carry the detection device body; the problem that a detection device body in a comparison file is not provided with a structure convenient for personnel to carry, so that the personnel need to put the detection device body into a toolkit or hold the detection device body by hand to carry the detection device body, and the detection device body is inconvenient to use is solved.

The utility model provides an electronic product transporting and transferring device, belongs to the field of electronic product production, and aims to solve the problem that an existing electronic product transporting and transferring device cannot conveniently and stably limit and protect electronic products, the electronic product transporting and transferring device comprises a bottom plate, and a supporting rod, a servo motor and a limiting rod are welded and fixed to the top end face of the bottom plate; a top plate is fixedly welded to the top end face of the supporting rod, a threaded rod is connected to the output end of the servo motor, a connecting plate is connected to the threaded rod in a threaded mode, a push rod is fixedly welded to the bottom end face of the connecting plate, and the limiting rod is slidably connected into the connecting plate in a penetrating mode. The rubber piston can be driven to move upwards or downwards through the arranged push rod, so that the rubber piston can be matched with the universal wheels to conveniently switch the moving state and the stable placing state of the transportation and transfer device, convenience of moving work of the transportation and transfer device is guaranteed, and meanwhile stability and safety of the placing state of the transportation and transfer device can be guaranteed.

This invention discloses an integrated cable anti-drag storage device and method for car charging piles, applied in the field of car charging pile technology. The key technical points are: it includes a base and a charging pile body fixedly connected to the base; the charging pile body has a charging gun head based on the cable; a mounting base is externally fixedly connected to the charging pile body; a first cable storage component, a release restriction component, and a second cable storage component are sequentially arranged along the cable direction within the mounting base; a lever lifting component is also provided on the base; a locking release component is fitted and fixedly connected to the charging gun head; and a buzzer for emitting an alarm sound and a fault indicator light for indicating a malfunction are fixedly provided on the charging pile body. The technical effects are: preventing the charging cable from being dragged while reducing the possibility of damage to the charging gun and improving charging safety.