142results about How to "Reduce drop height" patented technology

The invention relates to the grip mechanism of an intelligent robot pallet machine, which comprises grip palm coupling with the arm of the intelligent robot, a pair of No.1 and No.2 drive device crossingly fixed on the grip palm, a pair of picking device matching for the case and bag for the clipping and release of all directions, a pair of left and right picking device, a pair of front and back picking device set at the No.1 drive mechanism, a pair of left and right picking device setting on the No.2 drive mechanism, a pair of case and bag backing device, with optional choice of the front and back picking device or left and right picking device. It can reduce the landing height of cases, almost eliminate the gap between cases with neat stacking.

A perfect binder for processing book blocks, including: a conveying device adapted to convey the book blocks along a closed circulating path, the conveying device including a plurality of clamping devices each adapted to convey a book block; and a plurality of processing stations arranged successively along the closed circulating path. One of the processing stations includes a spine-processing station, and another one of the processing stations includes an end sheet feed station following the spine-processing station. According to another aspect of the invention there is provided a method forthe perfect binding of book blocks, comprising: conveying the book blocks around a closed circulating path with each book block clamped in a clamping device of a conveying device, wherein a pluralityof processing stations are arranged successively along the closed circulating path; milling the spine of each book block at one of the processing stations; and subsequently, inserting at least one endsheet into the clamping device at a downstream end sheet feed station.

The invention relates to a multidirectional discharging method of a mobile discharging car, and belongs to the technical field of a bulk material discharging device. The multidirectional discharging method is characterized in that materials are transferred into a belt conveyor at the lower part through a funnel and then are transported to the position above a discharging point for discharge; and by adjusting the horizontal distance between the discharging point of the belt conveyor and the outlet of the funnel, discharging position is adjusted without increasing overall height of the conveyor. The multidirectional discharging method has the beneficial effects that the materials can be flexibly discharged in multiple directions as required; the structure is compact, thus saving equipment installation space; a long chute is not used, thus avoiding phenomena such as material aggregation and blockage; by effectively controlling equipment height, discharging height difference is decreased, and dust generated during the material transfer process is reduced, and good dedusting and environmental protection effect can be obtained by utilizing dedusting equipment; and steel structural members in the equipment are simplified and diminished, thus the equipment can be conveniently installed and simply debugged, operated and maintained, and good economic benefit can be obtained. The mobile discharging car is particularly applicable to workplaces with narrow plant space and higher requirement on environmental quality.

The invention discloses a rotating plate transition type two-way loading and unloading machine and relates to the field of logistics transportation goods loading and unloading mechanical equipment. The rotating plate transition type two-way loading and unloading machine is composed of a bearing trolley, a middle conveyor, two belt conveyors, a material blocking device, a slippage device, a lifting device and an operation control system of the rotating plate transition type two-way loading and unloading machine. The rotating plate transition type two-way loading and unloading machine is simple in structure, reliable in work, economical, practical, capable of saving energy and environment-friendly; the rotating plate transition type two-way loading and unloading machine is closed up during walking, the appearance size is small, and movement and field transferring are convenient and fast; the rotating plate transition type two-way loading and unloading machine is unfolded in work, the operation range is large, the logistics direction can be guided and changed, and positive and negative two-way loading and unloading are achieved; the work orientations and postures of the belt conveyors can be adjusted so that the rotating plate transition type two-way loading and unloading machine can adapt to goods loading and unloading point changes, and direct reaching of goods is achieved through one time of loading and unloading; the goods can directly enter a compartment, a goods cabinet and a container to be operated, auxiliary carrying is reduced, the labor intensity is relieved, the operation time is shortened, the loading and unloading work efficiency is improved, and the loading and unloading carrying cost is reduced; and the goods falling difference is small in the loading and unloading conveying process, transition is stable and free of impacting, dust discharge can be reduced, the work environment is improved, falling damage during transition delivery of articles is avoided, and the loading and unloading safety of the goods is guaranteed.

An apparatus for forming stacks in sheet-processing machines, in particular printing machines, includes side stops moving back and forth. The stops are divided into upper and lower parts. The lower part can be displaced vertically or in slotted guides and can interact with a switch in order to switch off a stack lift drive.

The invention relates to an unloading trolley with a material separation device, and belongs to the technical field of bulk material unloading devices. The unloading trolley is characterized in that: a belt conveyor is arranged below a funnel outlet along the front and back directions; and the horizontal distance between an unloading point of the belt conveyor and the funnel outlet can be adjusted, so that the integral height of equipment is not required to be increased. The unloading trolley has a flexible unloading mode and can be used for unloading in multiple directions according to requirements; the unloading trolley has a compact structure, so that the mounting space of the equipment is saved; a long chute is not used for transferring materials, so that the phenomena of material collection and material blocking are difficult to generate; the height of the equipment is effectively controlled, so that unloading height level differences are reduced, dust emission in the process of transferring the materials is reduced, and a good dust removal environment-friendly effect can be achieved by matching dust removal equipment; and a steel structural piece in the equipment is simplified and reduced, so that the unloading trolley is convenient to mount, is easy to debug, operate and maintain and has a good economic benefit. The unloading trolley is particularly suitable for working places with small plant space and higher environmental quality requirements.

The invention provides a rotating disk transition type bidirectional loading and unloading machine, and relates to the field of logistics transportation cargo handling machinery. The loading and unloading machine is formed by a load-bearing trolley, two belt conveyors, an intermediate conveyer, a stop gauge, and an operating control system. The loading and unloading machine is simple in structure, reliable in operation, and is economical and practical, and energy saving and environmentally friendly. The loading and unloading machine is folded when travelling, and appearance dimension is small, so moving and transition are convenient and fast. When the loading and unloading machine operates, the machine is unfolded, and operation range is large, and the machine can guide and change logistics directions, and realizes positive and negative double-direction loading and unloading. Operation directions and postures of the belt conveyors can be adjusted, so as to adapt to changes of cargo loading and unloading positions. Cargoes directly arrive in one-time loading and unloading. The machine can directly enter a carriage, a counter, and a container to operate, thereby reducing manual auxiliary carrying, reducing labor intensity of workers, shortening operation time, improving loading and unloading efficiency, and reducing loading and unloading and carrying cost. In loading and unloading and conveying processes, drop height of objects is low, transition is stable without impact, and dust discharge is reduced, working environment is improved, and objects are prevented from falling and being damaged in transition conveying, so as to ensure safety of cargo loading and unloading.

The invention discloses an automatic steel ball buffering and receiving device which comprises a buffering blanking device and a lifting receiver. The buffering blanking device comprises a feeding pipe and a blanking pipe. The blanking pipe is internally provided with inclined buffering plates for enabling steel balls to fall in a zigzag track mode and arranged in a staggered mode. The lifting receiver comprises a ball receiving frame, an air cylinder, a controller and a position sensor. Due to the fact that the steel balls are blocked by the inclined buffering plates in the blanking pipe, the steel balls are made to fall in the zigzag track mode, and the falling speed of the steel balls is greatly reduced, so that the problem the steel balls are collided and damaged in the blanking process can be avoided; the position sensor is used to detect the height position of the steel balls in the ball receiving frame, when the position sensor detects that the steel ball position is lower than the set position, the ball receiving frame is lifted to shorten the steel ball falling height, so that the problem that the steel balls are collided and damaged can be avoided; when the position sensor detects that the steel ball position is higher than the set position, the ball receiving frame is lowered, the steel ball falling height is increased, and the problem that a steel ball discharging opening is blocked can be avoided.

The invention discloses an LED ceiling lamp with advantages of small volume, light mass, saving of ceiling space, low temperature rise, energy conservation, environmental protection, high light efficiency and capability of replacing the conventional ceiling tube lamp. The LED ceiling lamp comprises an LED circuit substrate (1), a light distribution plate (3), a light transmission front cover (4), a lamp framework (5), a front cover clamp spring (6), a spring bracket (7), a mounting spring (8) and a power supply bracket (9), wherein an LED (2) is arranged on the LED circuit substrate (1); a reflection groove (31) is formed on the light distribution plate (3); the LED circuit substrate (1) is fixedly connected with the light distribution plate (3); the reflection groove (31) corresponds to the position of the LED (2); the light transmission front cover (4) is positioned on the front of the light distribution plate (3); the light transmission front cover (4) is fastened on the lamp framework (5) through the front cover clamp spring (6) and presses the LED circuit substrate (1) and the light distribution plate (3) to be fixed; the spring bracket (7) and the power supply bracket (9) are fixed on the lamp framework (5); the mounting spring (8) is connected with the spring bracket (7); and the front of the lamp framework (5) is provided with an annular face ring (50).

The invention discloses a movable crushing car loader, and belongs to the technical field of mining equipment. The movable crushing car loader is used for crushing and loading materials of surface mines. The technical scheme includes that the movable crushing car loader comprises a crawler traveling portion, a rotating portion, an operation room and a working portion; and the working portion comprises an undermine cutting device, scraping device, an ore rock conveyor belt, a granularity control barrier, a crusher, a transferring conveyor belt and a hydraulic cylinder, the undermine cutting device is fixed to the front end of the ore rock conveyor belt, the scraping device is positioned above the ore rock conveyor belt, the rear of the ore rock conveyor belt is connected with the crusher, the granularity control barrier is mounted above a joint of the ore rock conveyor and the crusher, a discharge outlet of the crusher is connected with the transferring conveyor belt, and the hydraulic cylinder is connected with the scraping device and the ore rock conveyor belt. Shoveling, crushing and transporting are integrated by the aid of the movable crushing car loader, the movable crushing car loader has the advantages of compact structure, flexibility in operation, high production capacity and low power consumption, the work efficiency can be greatly improved, the productivity of the mines is improved, and the production cost of the surface mines is lowered.

The invention relates to the field of construction buildings, in particular to an anti-pollution mobile construction device for a cable channel. The anti-pollution mobile construction device for the cable channel comprises a feeding device and a mobile bracket, wherein a concrete feeding opening of the feeding device is located in the cable channel and is arranged close to the bottom surface of the cable channel; the mobile bracket is arranged above the cable channel; the feeding device comprises a feed hopper; the feed hopper is located on the mobile bracket; the mobile bracket comprises a base and a rolling mechanism; the base is used for supporting the feed hopper; and the rolling mechanism is located below the base and moves the base along the length direction of the cable channel. The concrete feeding opening of the feeding device penetrates into the cable channel and is close to the bottom surface of the cable channel in the leveling construction process of the bottom surface of the cable channel, so that the drop height of concrete is reduced in the feeding process; the pollution to the inner wall of the cable channel in the concrete feeding process is effectively avoided; and the construction quality is ensured.

The invention discloses a building construction carrying frame. According to the technical scheme, the building construction carrying frame comprises a platform, two front stay bars and two rear staybars are fixed to the lower portion of the platform, and a lifting platform slidingly connected with the two front stay bars is arranged on the front side of the platform; a retracting mechanism is arranged on the platform, and the retracting mechanism is connected with the lifting platform through a connecting rope; the two front stay bars are connected with a safety mechanism, the safety mechanism comprises a first mounting frame and a second mounting frame which are fixed on the two front stay bars, blocking modules driven by driving members are mounted on the first mounting frame, and theblocking modules can block the lifting platform from falling and does not block the lifting platform from rising; the first mounting frame and the second mounting frame are the same in structure, first photoelectric sensors for detecting the position of the lifting platform are correspondingly arranged on the first mounting frame and the second mounting frame, second photoelectric sensors are fixed at the lower ends of the opposite sides of the two front stay bars, and the first photoelectric sensors are located above the corresponding blocking modules. The building construction carrying framehas the function of preventing the lifting platform from hurting people when the connecting rope is broken.

The invention provides an iron part and cutting chip separating device which comprises a magnetism-controllable electromagnetic tray. The initial position of the electromagnetic tray is arranged belowa turning position. The electromagnetic tray is fixedly connected with a screw nut part. The screw nut part is in connected with a screw rod in a threaded fit manner. The screw rod is fixedly installed in a guide rail and is driven by a motor. The motor can rotate forwards and backwards. A notch capable of making the screw nut part rotate by a certain angle is formed in each of the left end portion and the right end portion of the guide rail. A tray is arranged below each notch. The guide rail is further provided with an optical fiber sensor used for positioning the initial position. When aniron part is machined, cutting chips can be effectively separated from the part, the work efficiency is improved, the labor intensity of workers is lowered, meanwhile, impacts on a workpiece are further relieved, the precision of the workpiece is effectively protected, and the workpiece is prevented from being damaged.

A device for soldering electrical or electronic components on a printed circuit board includes a soldering nozzle arrangement arranged above a solder crucible. The nozzle arrangement includes at least one carrier, on which at least one soldering nozzle is arranged. Molten solder is conveyed, using a conveyor unit, out of the solder crucible through the soldering nozzle to the components to be soldered. At least one discharge unit is arranged between a tip of the soldering nozzle and the carrier for any excess solder that has left the soldering nozzle. The discharge unit includes at least one baffle plate substantially surrounding the soldering nozzle.

The invention discloses a fur niter-dyeing machine. The fur niter-dyeing machine comprises a rotary drum structure, a filtering device and a stirring device. The rotary drum structure comprises a flat and straight baffle plate arranged at the inner surface of the drum body along an axis direction, an inclined baffle plate structure and inlet and outlet water pipes. The filtering device comprises a liquid inlet pipe, a primary filtering device and a secondary filtering device. The opening of a liquid outlet pipe is arranged above the primary filtering device. The primary filtering device comprises a rubber scrubbing brush, a hairbrush and a primary filtering screen. The rubber scrubbing brush is located in front of the hairbrush. The secondary filtering device comprises a secondary filtering screen and a secondary liquid outlet pipe. The stirring device comprises a temperature control device, a steam heating device and an inclined stirring device arranged in the cylindrical shell of the stirring device. A water outlet of the rotary drum structure is connected to the liquid inlet pipe of the stirring device. The primary liquid outlet pipe and the secondary liquid outlet pipe of the filtering device are respectively connected to the primary liquid inlet pipe and the secondary liquid inlet pipe of the stirring device. The fur niter-dyeing machine can be used in fur niter-dyeing and guarantees finished fur quality.

The invention relates to an intelligent refrigerator. The intelligent refrigerator comprises a control unit, and is provided with an opening communicating with the exterior, and an automatic discharging device is arranged in the refrigerator, and comprises a panel for sealing the opening, a containing frame used for containing food materials, and a first drive part used for driving the containing frame to move and opening the opening. The panel is fixed to the containing frame, the first drive part is in electric signal connection with the control unit, and the automatic discharging device conveys the food materials to the exterior of the refrigerator from the opening. Compared with the prior art, the food materials can be automatically taken out of the refrigerator, discharging through one-key starting can be achieved, people can take the food materials without opening a refrigerator door, the user experience can be greatly improved, rapid and convenient life experience is brought to a user, in addition, in cooperation with a water groove, that is, the food materials fall in the water groove automatically, automatic cleaning is carried out, people can operate the refrigerator at home or outside, and after people go home, the food materials capable of being directly cooked are presented to the user.

The invention discloses a double-supporting-arm coil collection device which comprises a coil collection barrel and a nose cone arranged in the center of the coil collection barrel. At least two sets of temporary coil supporting arms used for supporting coils are arranged in the axis direction of the coil collection barrel at intervals. The temporary coil supporting arms are arranged on the outer wall of the coil collection barrel and surround in the circumferential direction for one circle. According to the double-supporting-arm coil collection device, a novel double-supporting-arm coil collection structure is adopted, the falling height of coils can be reduced, the phenomena that coils loose or are coiled disorderly in the wire rod collecting process are prevented, the regularity of coils is improved, the coil collection height of large wire rods is effectively reduced, and coil collection accidents are prevented from occurring. The double-supporting-arm coil collection device is simple in structure, high in reliability, and suitable for large-scale popularization and application.

The invention discloses an intelligent book storage racking system. The system comprises a management cabinet, a sorting device and a classification control system, the upper surface of the managementcabinet is provided with a return window, the sorting device comprises a classifying cylinder and two sorting frames, supporting tables are installed at the top ends of the two sorting frames, a movable supporting plate is jointly hinged to the bottoms of the two sorting frames, and the movable supporting plate is arranged in the management cabinet in a left-right sliding mode through a sliding rail and a driving air cylinder, the two sorting frames are provided with an arc-shaped connecting frame, two driving gear strips are arranged in the arc-shaped connecting frame, and the two driving gear strips are connected with the two sorting frames respectively, a driving gear is jointly connected between the two driving gear strips, and the bottom surface of the driving gear is connected witha sorting motor through a transmission shaft. According to the intelligent book storage racking system, the structural design is reasonable, the classifying and sorting of the returned books can be automatically carried out, and the returned books can be lifted to the bookshelf at the corresponding height so as to greatly improve the efficiency of the book storage racking.

The invention discloses a material raising device for a ramsbottom dryer. The device comprises material raising plates 2, a large flange ring 4, a small flange ring 5, a supporting tube 6, material guide plates 7, a feeding plate 8, a discharging plate 9 and other members, wherein the material raising plates and the material guide plates are equally distributed inside a dryer cylinder along the circumference; and due to design of the shape, structure and arrangement position, the material raising direction is changed in the process of rotating and propelling the dryer cylinder, the raising height is reduced, collision between materials and between materials and equipment is greatly reduced, heat is uniformly transferred, materials are propelled easily, and the material damage rate is reduced. The material raising device has the advantages that: the damage rate of a finished product is reduced from over 24 percent to below 13.4 percent, the production efficiency is improved, the service life of the equipment is prolonged, and the device has a simple structure and is convenient for maintenance personnel to repair and clean. Meanwhile, the device can be applied to material raising devices for rotary straight cylinder dryers for coke, slag, fly ash, bentonite, desulfurization gypsum and the like of which the damage rate is needed to be reduced.

The invention relates to a cofferdam hoisting and lowering construction device and a cofferdam hoisting and lowering construction method. The cofferdam hoisting and lowering construction device includes: a steel casing, a hanger, a jack and a suspension rope, and also includes several threaded steel bar booms, the lower end of which is used for It is connected with the hoisting of the cofferdam, and the upper support nut is screw-assembled on the threaded steel suspender, which is used to support on the corresponding fixed foundation when the cofferdam goes down to the set position with the corresponding threaded steel suspender, forming redundant Additional protection. When in use, both the suspension rope and the dry threaded steel boom are hoisted and connected to the cofferdam. When the suspension rope breaks accidentally, the cofferdam will drop with the threaded steel boom until the upper support nut is matched with the corresponding fixed foundation support. The fixed foundation hangs the cofferdam through the upper support nut and the threaded steel suspender to prevent the cofferdam from falling continuously. Equipped with lifting ropes and threaded steel booms, the threaded steel booms are used to form redundant protection to improve the safety of the entire cofferdam hoisting and lowering construction equipment.

The invention provides a collection device of automatic packaging equipment. The collection device of automatic packaging equipment includes a machine frame, separation and drop mechanisms which are installed on the machine frame and used for changing the state of a packaging bag from a vertical state into a horizontal state; stack space which is disposed under the separation and drop mechanisms and used for accommodating a dropping bag in the horizontal state; and lifting mechanisms which are installed on the machine frame and used for moving stacked packaging bags from the upper part of thestack space to the lower part of the stack space. The collection device of automatic packaging equipment of the invention enables the packaging bags to be stacked neatly and fast and the packaging space to be saved, and has a simple structure.

The invention discloses an anti-hijacking method of a regional aircraft. The anti hijacking method involves the regional aircraft, the upper half part of an aircraft tail is fixed, the lower half part of the aircraft tail is movable, a corridor fixedly connected with an aircraft body and allowing people to walk is arranged in the middle of a passenger cabin of the regional aircraft, and two rows of seat-type passenger containers disconnected with the aircraft body fixedly are arranged on two sides of the corridor. Balls are embedded in concave holes in the walls at the bottoms of the seat-type passenger containers and can slide in two laterally through concave lower tracks below the seat-type passenger containers in a back and forth mode. When aircraft hijacking happens, the movable aircraft tail is separated from the fixed aircraft tail, parachutes are pulled away from the behind of the movable aircraft tail and opened, and when meeting wind, the parachutes pull the seat-type passenger containers out of the cabin from the rear below position of the aircraft tail and descend. As to an object descending by means of the same parachute system, the seat-type passenger containers are separated one by one at a slow speed from front to back through fish scalded piece sliding rods by means of control of a program control circuit and self gravity of the seat-type passenger containers during descent, therefore, seat-type passenger containers are dispersed to form a plurality of sliding rod type landing units different in landing time, gravity of the landing object is dispersed, and speed is reduced.

The invention relates to a quick-change locking mechanism for a power battery. The quick-change locking mechanism comprises a fixing assembly and a locking assembly, wherein the fixing assembly comprises a push rod, a first elastic piece and a fixing block; s groove is formed in the upper surface of the end, close to the locking assembly, of the push rod; the locking assembly comprises a locking shaft and a sliding block; the locking shaft comprises a hemispheroid and a cylindrical shaft which are coaxially arranged; the sliding block is sleeved on the cylindrical shaft and is provided with ahorizontal table board and a cambered surface which form an angle with each other; in a locking state, the push rod is respectively clamped with the horizontal table top and a lower surface of the hemispheroid, and a lower edge of the hemispheroid is clamped in the groove of the push rod; in the separation state, the arc surface makes contact with the push rod, and the push rod slides on the arc surface to achieve separation. The mechanism is advantaged in that installation reliability of the locking mechanism can be improved, and the occupied space of the locking mechanism can be reduced through a simple structure.

The invention discloses a Taiko ring recovery device of a Taiko ring cutting machine table. The Taiko ring recovery device comprises a lifting unit, wherein the lifting unit is arranged in a Taiko ring recovery barrel; an area between the top surface of the lifting unit and the top opening of the Taiko ring recovery barrel is a recovery area; a Taiko ring is collected into the recovery area from the top opening of the Taiko ring recovery barrel in a falling manner; and the top surface of the lifting unit has a vertical lifting function, the top surface of the lifting unit is highest when the Taiko ring is not collected in the recovery area, the top surface of the lifting unit is gradually lowered along with increase of the recycling number. According to the invention, the falling height of the Taiko ring can be lowered when the Taiko ring is recovered, so that the fragment rate can be reduced or basically no fragment is generated, and besides, the volume of the Taiko ring recovery device is not influenced. The Taiko ring recovery device can be cleaned in time before the Taiko ring recovery device is full, so that the defects of full alarm, sudden stop of a machine table and wafer rework caused by the full alarm can be overcome.

The invention provides a buffer device and a fire fighting truck. The buffer device is arranged below an object storing box in a foldable and unfolding manner, the object storing box is arranged on atruck chassis, the buffer device comprises a buffer plate which is hinged to or is in stretchable fit with the object storing box, or the buffer plate is hinged to or is in stretchable fit with the truck chassis; and the buffer plate is located below an opening of the object storing box in the unfolding state. According to the buffer device, when materials or objects need to be unloaded from the object storing box, the buffer plate stretches out or is rotationally opened to be arranged below the opening of the object storing box, in the material or object falling process, buffering through thebuffer plate is firstly carried out, then the materials or objects fall or slide to the ground, damage of the falling materials or objects to the ground or damage to the falling materials or objectsis reduced, and the personal safety risks can be effectively reduced. Meanwhile, after unloading is completed, reversed stretching or rotation is carried out to take back the buffer plate, overlengthor overwide truck bodies or influences on truck departure angles are avoided, and use is convenient.

The invention relates to a double-hopper loading device with automatic discharge turnover plates and seal gates and a working method thereof. The device comprises charging units, a dust collecting cover, a fixed hopper and a dust collecting pipeline. The dust collecting cover is connected to the fixed hopper, and the number of the charging units is two, each charging unit is composed of a trolley,an upper movable hopper, a lower movable hopper, a seal gate, a charging bell, a water seal cover and a manual trolley movement mechanism. Specifically, the upper movable hopper is connected to the fixed hopper through a flexible connection sleeve, and the fixed hopper is internally provided with a sealed cross beam and turnover plates, and the seal gate is disposed between the upper movable hopper and the lower movable hopper. The upper movable hopper and the lower movable hopper are internally equipped with the charging bell, and the bottom of the lower movable hopper is provided with the water seal cover. The device provided by the invention can satisfy the charging and distribution requirements of continuous and few distributed feeding within a long time, is equipped with two independent charging units, each of which realizes pre-storage and double-sealing functions by the seal gates and turnover plates, and ensures the continuity of production operation.

The invention discloses an anti-pollution eye washing machine containing radix isatidis cleanout fluid. The anti-pollution eye washing machine comprises a car body and a cleaning cavity inside the car body. The car body is in a cuboid shape, the cleaning cavity is located on the front side inside the car body, the side face of the side, making contact with the car body, of the cleaning cavity is of an opening structure and is provided with a curtain, a drainage hopper is connected to the bottom of the cleaning cavity, a horizontal screen net is arranged in the middle of the drainage hopper, the edge of the screen net is attached to the inner wall of the drainage hopper, a drain tank is arranged below the drainage hopper, the bottom of the drainage hopper is communicated with the top of the drain tank, a discharge opening is formed in the drain tank, and a cleanout fluid box, a heater, a power source and a controller are arranged inside the car body. By arranging the cleaning cavity with the curtain, the drainage hopper with the screen net is arranged below the cleaning cavity, the phenomenon that an administrative office is polluted by liquid sprayed from a cleaning pipeline during cleaning is avoided, meanwhile, the sewage falling height is decreased, the falling speed is slowed down, and the phenomenon that normal cleaning is affected by splashing of sewage is avoided.