318 results about "Electric trolley" patented technology

The invention relates to a steel structure trestle hoisting device, belongs to the technical field of bridge construction machinery, and is used for solving the technical problems that traditional hoisting equipment is low in mounting precision, poor in posture adjusting efficiency and easy to deform in structure. The device comprises a portal crane main body, wherein an electric trolley of which the stroke is matched with the width of a trestle is arranged at the lower part of a fixed cross beam; the dynamic self-adaptive balance assembly adjusts load balance in real time through a rigid frame, a three-axis tilt angle sensor, a balancing weight and an electric push rod. The lifting appliance group adopts a servo motor to drive four lifting hooks to cooperatively work, and a laser positioning assembly is combined for precise positioning; the digital twinning cooperative control system integrates prediction, control logic and a pre-judgment type intervention module through an embedded industrial controller, analyzes data of an encoder and a pressure sensor in real time, predicts deformation and gravity center shift, and dynamically regulates and controls the hoisting speed, the transverse position of a trolley and the balance weight displacement. The device is suitable for high-precision rapid installation of the large-span steel structure trestle, and the construction safety and efficiency are improved.

The invention discloses a building engineering construction site intelligent green spraying dust falling device which comprises an electric trolley, the top of the electric trolley is connected with a base, a supporting plate is installed at the top of the base, a first gear motor used for driving the supporting plate to rotate is fixedly installed on the outer wall of the base, and an air duct is installed at the top of the supporting plate in an angle-adjustable mode. A plurality of atomizing nozzles are hinged to the inner wall of the air outlet end of the air duct through hinge seats, the atomizing nozzles communicate with the annular water supply pipe, a driving mechanism is installed on the outer wall of the air outlet end of the air duct, the atomizing nozzles are in transmission connection with the driving mechanism, and the driving mechanism drives the atomizing nozzles to converge or diverge relative to the axis of the air duct; intelligent control system equipment is arranged on the electric trolley, and the intelligent control system equipment is configured to complete movement control over the electric trolley, orientation control over the air duct and orientation control over all the atomization nozzles on the basis of dust raising monitoring equipment arranged on a construction site and monitoring information collected by a flame detector.

The invention relates to the technical field of feeding devices, and discloses a feeding device for transmission chain machining, which comprises a base, a mounting frame fixedly mounted on the upper surface of the base, a support frame slidably arranged on the inner side of the mounting frame, a stop lever arranged on the mounting frame, at least one bearing assembly arranged on the support frame, and at least one conveying assembly arranged on the support frame. The bearing assembly comprises a pair of transverse shafts rotationally installed on the supporting frame. The technical means that the bearing assembly is matched with the stop lever is adopted, when feeding is needed, the electric trolley loaded with the chain to be inspected is moved to the position close to the edge of the inspection table, the moving assembly is used for driving the supporting frame to move upwards, the stop lever blocks the stress plate, the bearing plate is made to rotate, the chain stacked on the bearing plate slides to the table top under the action of gravity, and the chain to be inspected is conveyed. Operation is easy and labor-saving, the technical problem that feeding in the prior art is time-consuming and labor-consuming is solved, and the technical effect of improving the feeding efficiency is achieved.

The invention relates to the technical field of test conveying, in particular to a conveying device for cable festoon test equipment, which comprises an assembly cross beam, a horizontally arranged bottom guide rod is arranged below the assembly cross beam, and the outer side of the bottom guide rod is movably sleeved with a plurality of external assembly frames. According to the conveying device for the cable festoon test equipment, the electric trolley is connected with one end of a cable for dragging, the cable is hoisted and supported through the external assembly frame on the outer side of the bottom guide rod, the hoisting state of the cable is simulated, and operation and control are very convenient; the electric control type regulation and control locking device is movably assembled in the bottom storage adjustment frame at the lower end of the electric trolley, storage and limiting adjustment can be conducted on the external assembly frame, the adjacent positions of the external assembly frame at different positions can be changed through the electric trolley, manual adjustment is not needed, operation is easy and convenient, and control is accurate.

The utility model discloses a turntable type sand blasting device for cleaning the outer surface of a workpiece, which relates to the technical field of sand blasting devices and is characterized by comprising a sand blasting box, the outer wall of the sand blasting box is fixedly connected with a plurality of supporting blocks through supporting columns, two guide rails are fixedly mounted in the sand blasting box, and the two guide rails are fixedly connected with the sand blasting box. According to the utility model, through the arrangement of the components such as the guide rails, the electric trolley and the rotating disc, the trolley can walk and rotate, so that the position and the direction of a workpiece can be flexibly adjusted, the working efficiency is improved, the working efficiency is improved, and the working efficiency is improved. According to the sand blasting device, the rotating disc is arranged on the connecting shaft, so that the possibility that the workpiece collides with surrounding equipment and facilities is reduced, and in the sand blasting process, the rotating disc can be manually rotated around the connecting shaft through the lower hand hole according to the shape of the workpiece and the part needing to be cleaned, so that all surfaces of the workpiece can be uniformly subjected to sand blasting treatment, and the cleaning effect and comprehensiveness are greatly improved.

The utility model relates to complete equipment for cleaning a groove type pipe. The complete equipment comprises a pipe placing frame, a cleaning groove and a crane, a pipe containing groove is formed in one side of the pipe containing frame, a feeding mechanism and a discharging mechanism are arranged on the two sides of the cleaning groove, the feeding mechanism comprises a to-be-cleaned material frame and a feeding chain row, the discharging mechanism comprises a material storage frame and a discharging chain row, and a feeding station and a first electric trolley for driving the pipe containing frame are arranged on one side of the feeding chain row. A discharging station and a second electric trolley are arranged on one side of the discharging chain row, and the first electric trolley and the second electric trolley horizontally move to drive the pipe containing frame to achieve pipe fitting feeding and discharging relative to the feeding chain row and the discharging chain row; one end of the cleaning tank is provided with a movable pipe connecting device which translates to drive a pipe connecting part to be inserted and sealed with a pipe fitting port on the built-in pipe frame of the cleaning tank, and an external cleaning pipeline is connected with the cleaning tank through a circulating pump after being inserted and sealed to form pipe inner wall circulating cleaning. The pipe fittings in the cleaning tank are orderly arranged and cleaned, the inner walls of the pipes are automatically and circularly cleaned, the cleaning efficiency is high, and the effect is good.

The invention belongs to the technical field of welding, and particularly relates to a metal component welding device which comprises a base, the end of the base is fixedly connected with a guide plate, the end of the guide plate is slidably sleeved with a sliding plate, the end of the guide plate is fixedly connected with an oil cylinder, and the driving end of the oil cylinder is fixedly connected with the inner wall of the sliding plate. Clamping mechanisms are arranged on the base and the sliding plate, an annular guide rail is fixedly connected to the upper side wall of the guide plate, an electric trolley is arranged in the annular guide rail in a sliding mode, and a welding assembly is arranged on the electric trolley. A metal component is clamped and then moved to be close to and make contact with the metal component, the electric trolley drives the welding gun head to move to complete welding work, the heat conduction plate rotates to the inner side of the welding position during welding, supporting is carried out, welding heat is guided out, welding shaping is accelerated, and the problem that the metal component collapses due to overheating during welding is avoided.

The invention relates to a citrus water-fertilizer-pesticide integrated planting system and a using method thereof, and belongs to the technical field of citrus planting, the citrus water-fertilizer-pesticide integrated planting system comprises an electric trolley, two trolley guide rails, a plurality of bearing columns, a pipe placing beam, a main discharging pipe and a water-fertilizer-pesticide storage box, and the bearing columns are fixedly connected with the trolley guide rails; the two trolley guide rails are installed at the two ends of the pipe containing beam respectively. According to the device, water, fertilizer or medicine can be subjected to proportioning treatment according to needs and can be pumped into the spraying pipeline, so that the water, fertilizer or medicine can be uniformly sprayed out for irrigation treatment, the conveying guide rail and the liquid feeding cross beam are arranged, and the water, fertilizer or medicine can be subjected to liquid feeding treatment on citrus trees planted in rows, so that manpower is reduced, and the working efficiency is improved; the spraying frame can ascend and descend in the spraying process, so that the water fertilizer or the medicine can be sprayed at different heights, and the medicine can uniformly cover the citrus trees.

To provide an electric dolly enabling smooth movement even when a problem occurs in an electric system, and improved in convenience.SOLUTION: An electric dolly includes: a dolly body 1 having a loading surface L; a wheel portion 2 provided on the wheel body 1; and control means 3 configured to electrically control a rotation operation of the wheel portion 2. The wheel portion 2 includes: a plurality of first wheels 21 having a substantially circular shape; a second wheel 22 having a rotation shaft P in an anteroposterior direction; and a raising / lowering mechanism that positions the rotation shaft P in a vertical direction by raising / lowering the second wheel 22. The second wheel 22 includes: a shaft portion 22a extending in an anteroposterior direction; and a protruding portion 22b spirally provided on an outer peripheral surface of the shaft portion 22a and capable of being grounded on a predetermined traveling surface together with the first wheel 21. The raising / lowering mechanism S is configured to be capable of manually moving the shaft portion 21a in a vertical direction.SELECTED DRAWING: Figure 2

The utility model provides automatic flushing equipment for a farm. The automatic flushing equipment comprises an electric trolley and a fixing support fixed to the front end of the electric trolley, an electric push rod is vertically arranged at the bottom end of the fixing support, the free end of the electric push rod is fixedly connected with a connecting frame, a reciprocating rotating motor is arranged on the connecting frame, and the reciprocating rotating motor is connected with an axial support. A rotary spraying structure is installed on the axial support and connected with the high-pressure water supply assembly. According to the automatic flushing equipment for the livestock farm, the angle of the spray head and the height of the equipment can be flexibly adjusted, accurate flushing can be achieved, the flushing work efficiency and the flushing quality are improved, water is saved, and the automatic flushing equipment is particularly suitable for laminated poultry houses.

The invention discloses a trolley device for electricity testing and grounding of a remote control type switch cabinet and a control method of the trolley device. The trolley device comprises an electric trolley and a remote control operation assembly arranged on the electric trolley. The electric trolley is provided with a grounding execution assembly and a voltage sensing assembly with dual redundancy configuration, the voltage sensing assembly is used for realizing electricity testing dual confirmation, the grounding execution assembly is used for executing grounding operation, and the remote control operation assembly can control and execute electricity testing and grounding actions; the remote control operation assembly comprises a controller and a remote controller which are in wireless communication, the remote controller remotely operates the controller to execute electric trolley electricity testing and grounding actions and receives and displays state information of the electric trolley, and the controller judges whether grounding operation is carried out or not through comprehensive electricity testing double confirmation. Electricity testing and grounding operation of the switch cabinet are completed through remote control operation, the live-line state of the bus of the switch cabinet can be accurately judged through double-confirmation electricity testing, the maintenance efficiency of the switch cabinet of the transformer substation is improved, and the safety of operation and maintenance personnel is guaranteed.

A European double-girder bridge crane effectively solves the problems of poor buffering effect and easy damage during lifting. It includes double main beams, outriggers, a trolley running mechanism, an electric trolley and a hoist. The electric trolley runs in the left and right directions on the double main beams. End beams are fixed at the left and right ends of the double main beams. A buffer mechanism corresponding to the electric trolley is installed on the end beam. The buffer mechanism includes a first buffer block and a first guide rail. Linkage mechanisms are provided at both front and rear ends of the first guide rail. The two linkage mechanisms are symmetrical about the front and rear directions of the first buffer block. The linkage mechanism includes a slider. The slider slides back and forth on the first guide rail. The slider is hinged to the first buffer block through a connecting rod. A first rack and a baffle are provided on the right side of the slider. The first rack is fixedly connected to the slider. A second rack is fixed on the left side of the baffle. Gears are installed on the end beams. The first rack and the second rack are meshed with the gears at the same time. The second buffer block is connected to the baffle for sliding back and forth.

The invention relates to the technical field of fire extinguishing, and discloses a fire extinguishing unmanned vehicle with positioning and navigation functions, comprising: an electric trolley, the top end of which is fixedly provided with a roof for supporting the whole device; the water spraying assembly is arranged on the car roof and used for extinguishing a fire scene; the fire extinguishing assembly is connected with the car roof and used for assisting the water spraying assembly to extinguish fire; the auxiliary assemblies are arranged at the two ends of the electric trolley and used for extinguishing surface fire in the fire scene; the control assembly is arranged on the car roof and used for positioning and navigating the device; the water spraying assembly comprises a water tank, the lower surface of the water tank is fixed to the car roof, a water injection opening penetrates through the top end of the water tank, and through cooperation of internal structures of the nozzle assembly, a motor rotates a first gear to drive a second gear and a nozzle to rotate, and the effect of widening the fire extinguishing range is achieved; the technical problems that an existing fire extinguishing device is limited in coverage range and low in fire extinguishing efficiency are solved.

An automatic anti-swing device of a crane effectively solves the problem that lifted goods are prone to swing and comprises a main beam, supporting legs and an electric trolley, a winding drum is installed on the electric trolley, a fixing frame is arranged below the electric trolley, the upper end of the fixing frame is rotationally connected with a pulley block, a first steel wire rope is wound around the pulley block, and the other end of the first steel wire rope is wound around the winding drum. Auxiliary mechanisms are arranged on the front side and the rear side of the fixing frame and comprise first fixed pulleys, second fixed pulleys, third fixed pulleys and second steel wire ropes, the first fixed pulleys and the third fixed pulleys are located on the lower portion of the fixing frame, and the second fixed pulleys are located on the upper portion of the fixing frame. The second steel wire rope sequentially penetrates through the first fixed pulley, the second fixed pulley and the third fixed pulley, supporting plates are fixed to the left end and the right end of the second steel wire rope, rings are fixed to the sides, away from the second steel wire rope, of the supporting plates, vertical guide rods are fixed to the supporting legs, and the rings vertically slide along the guide rods.

The invention relates to the technical field of underground gas monitoring, and particularly discloses an underground gas monitoring device which comprises an electric plate trailer, an electric push rod is mounted at the top of the electric plate trailer, and a mounting plate is mounted at the tail end of a piston rod of the electric push rod. According to the mine gas concentration monitoring device, the plurality of gas concentration monitoring probes which are uniformly distributed and unfolded rotate, so that the plurality of gas concentration monitoring probes rotate in a mine to monitor the gas concentration of the position of the mine in the rotating process, and the plurality of gas concentration monitoring probes are transversely and uniformly distributed and unfolded; the plurality of gas concentration monitoring probes are used for monitoring the gas concentration in the mine hole in the rotating process, the gas concentration of the mine hole at the position can be comprehensively monitored, the positions of the plurality of gas concentration monitoring probes rotate in real time, and the gas concentration of the position of the mine hole can be comprehensively monitored. And the monitoring comprehensiveness of the gas concentration in the mine is improved.

The utility model discloses an electric trolley, it includes frame, the outer surface fixedly connected with handle frame of frame, the outer surface fixedly connected with handle sleeve of handle frame, the outer surface of handle sleeve is provided with button switch, the rear surface fixedly connected with low speed waterproof motor of frame. Through setting button switch and low speed waterproof motor, can provide auxiliary power through low speed waterproof motor to make operating personnel only need to control low speed waterproof motor start -stop through button switch, and cooperate and set up driving wheel, belt, U -shaped seat, connecting shaft, synchronous wheel, first taper tooth, rotating shaft and second taper tooth etc. structure, can drive small size stirring vane and large size stirring vane to rotate in the moving process of trolley, thereby to the material in the first taper tooth inside is stirred, to break the material static state, ensure that material mixes fully, avoid the emergence of the condition that material is dilute under thick.

The invention relates to a charging station for trolley vehicles, in particular trolley buses, comprising contact means (06) for contacting metallic contact surfaces (07) of a current collector head (02) of a current collector (03), wherein the contact means (06) of the charging station (01) are arranged and designed such that they contact the current collector head (02) on contact surfaces (07) outside a central contact shoe (04) of the current collector head, preferably on outer side surfaces of the current collector head (02). According to the invention, it is provided that the contact means (06) comprise at least one leaf spring element (08) which is arranged and designed such that when the contact surfaces (07) are contacted by the contact means (06), it directly rests on the contact surfaces (07) and at least a part of the leaf spring element (08) is deformed against a restoring force and pressed against the contact surfaces (07).

The utility model relates to the technical field of electric push rods, in particular to an overload protection structure for an electric push rod. The overload protection structure for the electric push rod comprises a lead screw and a transmission gear used for being in power connection with a gear reducer, the lead screw sequentially comprises a first threaded section, a fixed section and a second threaded section in the axial direction, the first threaded section, the fixed section and the second threaded section are used for driving the push rod to move along the axis of the push rod, and shaft sleeves are arranged on the outer surfaces of the fixed section and the second threaded section in a sleeved mode. The outer surface of the shaft sleeve is provided with a first retaining shoulder and a second retaining shoulder which are arranged at intervals in the axial direction, the transmission gear is arranged between the first retaining shoulder and the second retaining shoulder in a sleeved mode, and one axial end of the transmission gear is provided with an elastic piece used for abutting against the first retaining shoulder or the second retaining shoulder. The utility model has the advantage that the overall cost of the device is reduced on the premise that the transmission performance and the anti-overload performance of the device are ensured.

The utility model particularly relates to the technical field of electric push rods, and discloses a multi-stage electric push rod which comprises a first mounting seat, a second mounting seat is fixedly arranged on the side wall of the first mounting seat, a third mounting seat is fixedly arranged on the side wall of the second mounting seat, a piston rod is inserted into the third mounting seat, and the piston rod is connected with the second mounting seat. A first gear is rotationally connected to the side wall of the second mounting seat, a second gear is rotationally connected to the middle of the second mounting seat, a third gear is rotationally connected to the side wall, close to the second gear, of the second mounting seat, and a first notch is formed in the side wall, close to the second mounting seat, of the first mounting seat and used for mounting of the first gear, the second gear and the third gear. By arranging the first mounting seat, the first notch, the second notch, the transverse partition plate and the lubricating oil, the contact area between the transverse partition plate and the lubricating oil is increased, so that the heat absorption efficiency of the lubricating oil is improved, the rising speed of the internal temperature of the first notch is reduced when the lubricating oil absorbs heat, the internal temperature of the first notch is reduced, and the service life of the gear is prolonged.

The utility model discloses a felt pile edge pressing device which comprises a support (1) and a placing plate (2) placed in the support (1), felts are stacked on the placing plate (2), a pressing plate (3) located above the placing plate (2) is arranged in the support (1), air cylinders (4) are arranged between the pressing plate (3) and the support (1), the air cylinders (4) are arranged in pairs, the air cylinders (4) are arranged on the two sides of the placing plate (2) respectively, and the air cylinders (4) are arranged in pairs. The pressing plates (3) are arranged above the two sides of the containing plate (2), a fixing frame (5) is arranged in the support (1), a rail (6) is arranged on the fixing frame (5), and an electric trolley (7) connected with the air cylinder (4) is arranged on the rail (6). The air cylinder (4) pushes the pressing plate (3) to press downwards, the two sides of a felt pile are pressed downwards through the pressing plate (3), the two sides of the felt pile are compacted, and therefore follow-up processing and transporting of the felt pile are facilitated.

The present invention belongs to the technical field of welding, and particularly relates to a welding device for metal components, including a base. An end of the base is fixedly connected with a guide plate. An end of the guide plate is slidably sleeved with a sliding plate. An end of the guide plate is fixedly connected with an oil cylinder. A driving end of the oil cylinder is fixedly connected with the inner wall of the sliding plate. Clamping mechanisms are arranged on both the base and the sliding plate. An upper side wall of the guide plate is fixedly connected with an annular guide rail. An electric trolley is slidably arranged in the annular guide rail. A welding assembly is arranged on the electric trolley, including. By clamping the metal components and moving them closer to and contacting each other, the present invention drives the welding torch head to move through the electric trolley to complete the welding work. During welding, the heat conduction plate rotates to the inner side of the welding position to support and conduct out the welding heat, accelerating the welding setting and avoiding the problem of overheating and collapse of the metal components during welding.

The invention discloses an electric trolley facilitating construction. The electric trolley comprises a frame, a walking mechanism arranged at the bottom of the frame and a carriage mechanism arranged at the top of the frame. The carriage mechanism comprises a carriage hopper, one end of the carriage hopper is hinged to the end of the frame, the other end of the carriage hopper is connected with the other end of the frame in a lifting mode through a hydraulic supporting mechanism, a discharging opening is formed in the end, hinged to the frame, of the carriage hopper, and a turnover discharging plate mechanism is arranged at the discharging opening. A handlebar mechanism and a monitoring mechanism are arranged at the end, away from the turnover unloading plate mechanism, of the compartment hopper, and a lighting mechanism is further arranged on the outer side of the compartment mechanism. Inclined unloading of the carriage hopper is achieved through the hydraulic supporting mechanism, and the unloading efficiency is improved; by arranging the monitoring mechanism, the situation around the trolley can be monitored in all directions, voice communication can be achieved through the calling unit, illumination is provided through the illumination mechanism in the environment with insufficient light, and safety accidents caused by the sight problem are avoided.

The utility model discloses a welding steel structure door leaf carriage device, and particularly relates to the technical field of welding tools. The welding steel structure door leaf sliding-down device comprises a trolley, the trolley is an electric trolley, a welding machine and a fixing base are installed on the top of the trolley, an L-shaped rod is fixed to the fixing base, the L-shaped rod and the fixing base are fixed through bolts, a disc is fixedly installed at one end of the L-shaped rod, an adjusting assembly is installed on the disc, and the adjusting assembly is connected with the welding machine. A fixing assembly is installed on the adjusting assembly, the fixing assembly is used for installing a welding gun, and the adjusting assembly is used for adjusting the welding angle and position of the welding gun. According to the trolley device for welding the steel structure door leaf, a pipeline of a welding machine can be placed on the trolley, so that when the trolley carries out welding work, the pipeline cannot hinder the trolley, the welding environment is purified, and welding is more convenient.

The invention relates to the technical field of stacking, in particular to fiber metal laminated plate carrying and stacking equipment which comprises a first rack, a conveyor, a mounting frame, an electric guide rail, a moving plate and the like, the conveyor is mounted on the first rack, the mounting frame is connected to the top of the first rack, and the electric guide rail is mounted in the mounting frame; a sliding block of the electric guide rail is connected with a movable plate. Fiber metal laminated plates can be placed on the electric tackle through the electric suction cup to be stacked, when the number of layers of the fiber metal laminated plates is close to that of the containing groove, stacking is suspended, then a cushion plate is pushed into the containing groove through a push plate, the cushion plate can disperse part of pressure, and stacking is completed. And the fiber metal laminated plate at the lower part of the limiting frame is prevented from bearing overlarge concentrated load, so that local deformation or bending of the fiber metal laminated plate at the lower part of the limiting frame can be avoided.

The utility model relates to a rod descending mechanism of an automatic lifting current collector of a trolley bus. The rod descending mechanism is mainly composed of a base, a rotating seat, a pitching arm, a large tension spring, a trolley rod and a current collecting head. One end of the pitching arm is hinged to the rotating seat, the trolley pole is fixed to the other end of the pitching arm, and the current collecting head is installed at the tail end of the trolley pole. The two ends of the large tension spring are hinged to the rotating base and the pitching arm respectively. The mechanism is further provided with a brake to control rotation of the rotating seat and an electric rope winder, and the electric rope winder is connected with the trolley pole through an internal pull rope, so that lifting control over the trolley pole is achieved. The control module is responsible for monitoring the electric connection state of the current collector and operating the brake and the electric rope winder according to the electric connection state so as to quickly respond to and process the rod descending requirement. According to the design, a traditional descending rod and an aligning air cylinder are abandoned, the overall height of equipment is reduced, the available space in a compartment is increased, the structure is simplified, the reaction speed is increased, and the running safety of the trolley bus is enhanced.

The invention discloses a tennis ball throwing mechanical arm simulating tennis ball throwing action, and relates to the technical field of ball throwing mechanical arms, the tennis ball throwing mechanical arm comprises an electric trolley, the top of the electric trolley is fixedly connected with a mechanical arm body, the output tail end of the mechanical arm body is fixedly connected with a mounting seat, and one side of the mounting seat is fixedly connected with an ejection cylinder; a ball inlet box is fixedly connected to one side of the ejection cylinder, a ball feeding cylinder is fixedly connected to the bottom of the ball inlet box, a ball pushing box is fixedly connected to the bottom of one side of the ball feeding cylinder, a plurality of pressing plates are arranged on the top of the connecting surrounding plate in an annular array mode, and hinge plates are fixedly connected to the bottoms of the pressing plates; according to the tennis ball throwing mechanical arm simulating the tennis ball throwing action, a tennis ball is thrown outwards under pushing of the mounting base and the connecting surrounding plate, an athlete conveniently hits a ball, it is guaranteed that the tennis ball is kept stable in the bouncing process, and the problem that the ball body deviates at the inclination angle is solved.

The application discloses a kind of garden greening pruning device, belong to garden machinery field.The device includes electric trolley body, pruning cutting unit and collection unit;Pruning cutting unit includes support, cutter head, rotating shaft, rotary seat, lifting support arm, rotary drive mechanism, switching drive mechanism and lifting drive mechanism, switching drive mechanism drives rotary seat to drive rotating shaft switch between vertical and horizontal, lifting drive mechanism drives lifting support arm to lift;Collection unit includes collection cover, hose, collection box, air pipe and negative pressure fan, collection cover can be set in trolley body bottom and be connected collection box by hose with floating up and down, collection box is connected negative pressure fan by air pipe.The application realizes cutter head one-key switching between mowing posture and side pruning posture by switching drive mechanism, adjusts height in combination with lifting drive mechanism, one machine multi-purpose;Meanwhile, through floating collection cover cooperation negative pressure fan, the real-time collection of debris is realized, and the garden maintenance efficiency and cleanliness are improved.

The utility model provides a kind of stroke detection device for electric push rod, for electric push rod's stroke detection device includes electric push rod body and bottom plate, electric push rod body is detachably connected on bottom plate upper end face, bottom plate upper end face is fixedly connected with scale board, scale board side wall is slidably connected with lifting plate, abutting plate is arranged below lifting plate, driving piece is inserted in scale board, driving abutting plate lifting, bottom plate upper end face is slidably connected with the limiting component one of electric push rod body to front and rear limit, lifting plate lower end face is fixedly connected with the limiting seat of electric push rod body to left and right limit, movable plate driven by double-end thread screw rod and bolt nut fixed limiting seat cooperate to limit electric push rod body, both avoid the friction damage of electric push rod and the side wall of detection cylinder, and eliminate the stroke measurement error caused by inclination, significantly improve the precision of detection.