101results about How to "Avoid secondary cleaning" patented technology

The invention discloses a post-cast strip structure for previously stopping water in basements and a construction method thereof. The structure comprises a main basement structure on the left and right sides, a post-cast strip area and a cast-in-place trapezoid concrete groove structure which is arranged below the post-cast strip area. A water-proof material rolling layer, a water-proof polyurethane coating film layer, a water-proof protective layer and a concrete cushion layer are sequentially arranged below the main basement structure and the cast-in-place trapezoid concrete groove structure; the post-cast strip structure for previously stopping the water in the basements has the advantages of being excellent in leaking-proof and water-proof effect, simple in structure, high in contraction distortion capability, and capable of effectively preventing sundries and accumulated water from entering the post-cast strip area, avoiding secondary cleaning, providing convenience for construction and effectively accelerating construction progress, and moreover, the undesirable phenomena such as slurry accumulation, water accumulation and the like are unlikely to occur by using the structure, so that the post-cast strip structure for previously stopping the water in the basements is worthy of popularization.

The invention relates to a grass trimmer comprising an expandable operation rod, a handle assembly connected with one end of the operation rod, a housing connected with the other end of the operation rod, a motor contained in the housing, a trimming head connected with the motor, and a shield and roller assembly arranged on the housing; the shield comprises a main portion connected with the housing and an edge portion vertically connected with the main portion; the edge portion is provided with an observation window used for observing work states of a trimming rope. The grass trimmer can more conveniently view the work states of the trimming rope in real time, thus preventing unnecessary wearing and bad effect caused by trimming.

The invention discloses a computer monitor with a dust preventing function. The monitor comprises a monitor frame body, moving dust preventing mechanisms are installed on the two sides of the monitorframe body, a dust blocking assembly is installed on the top of the monitor frame body, an accommodating dust collecting mechanism is installed at the bottom of the monitor frame body, the moving dustpreventing mechanisms comprise vertical supporting seats which are installed on the two sides of the monitor frame body, hollow grooves are formed in the vertical supporting seats, strip-shaped outlets are connected with the side faces of the hollow grooves, rotary shafts are arranged in the hollow grooves, both upper and lower ends of the rotary shafts are connected with the vertical supportingseats through connecting columns, the surfaces of the connecting columns are connected with the inner walls of the hollow grooves through torsion springs, dust preventing cloth sleeves the surfaces ofthe rotary shafts, limiting seats matching with the strip-shaped outlets are connected with the rear end of the dust preventing cloth, buckling seats are installed in the limiting seats, and illumination pads are arranged on the surfaces of the limiting seats. According to the computer monitor, dust preventing protection is conducted on the monitor through the convenient-to-adjust dust preventingmechanisms, the adhering of dust is effectively prevented, and convenience is brought for the use of the monitor.

The invention discloses an unbalance-load-free quick dismantling method for a multi-span concrete rigid frame arch bridge. The method comprises the following steps: erecting an old bridge demolition construction trestle platform, erecting an old bridge arch rib supporting frame, demolishing bridge deck accessories, demolishing bridge deck slabs, demolishing transverse tie beams, demolishing main arch ribs, demolishing bridge piers and demolishing bridge abutment. The unbalance loading of the middle pier is eliminated by erecting the arch rib support frame, the scientific demolition sequence isset, and reasonable dismantling equipment is used, so the defects of secondary cleaning, large construction potential safety hazard, heavy dismounting noise and dust, heavy secondary cleaning pollution and the like after integral collapse by using large-scale mechanical crushing or blasting in a traditional demolition method are overcome, dismounting can be carried out safely, efficiently and environmentally friendly, the green construction concept is met, the purposes of reducing noise, reducing pollution and reducing disturbance to the surrounding environment are achieved, the old bridge dismounting construction technology is enriched, and good reference significance is achieved for similar projects.

The invention provides a space-saving bowl and chopstick draining rack with a centrifugal rotating chopstick quick-drying function and a method, and relates to the field of articles for daily use. Theproblems that a draining frame is large in occupied space, the draining speed of chopsticks is too low, and bacteria are prone to breeding are solved. The bowl and chopstick draining rack capable ofsaving the occupied space and having the centrifugal rotating chopstick quick-drying function comprises a water accumulation disc, a supporting suction cup is bonded to the bottom of the water accumulation disc, a U-shaped mounting bottom frame is bonded to the top of the water accumulation disc through a support, two fixed side frames are bonded to the left side of the top of the mounting bottomframe, and a space adjusting mechanism is arranged at the top of the mounting bottom frame and located on the right sides of the fixed side frames. According to the bowl and chopstick draining rack capable of saving the occupied space and having the centrifugal rotating chopstick quick-drying function, when the bowl and chopstick draining rack is not used, the tightly-attached bowl and dish rack saves the narrow kitchen occupied space, a pressing handle is grabbed to drive a rotating screw rod to stretch out and draw back in a rotating screw cylinder, a chopstick basket rotates, water on chopsticks is spin-dried through centrifugal acting force, and the drying of the chopsticks is accelerated.

The invention relates to the technical field of gear cleaning, and discloses a mechanical gear cleaning device. The mechanical gear cleaning device comprises a device body, a lifting driving mechanism, a conveying mechanism and a drying mechanism. The lifting driving mechanism is disposed at the upper end of the interior of the device body. The conveying mechanism is arranged in the device body. The drying mechanism is connected to the left side of the device body. According to the gear cleaning device, a second servo motor is controlled to drive a conveying belt to convey gears to a specificposition in the device body, a hydraulic telescopic cylinder is started to enable a mounting plate to descend, a conical insertion column is inserted into an insertion groove in a third rotary shaft,a second water pump is started to pump cleaning water from a water tank, and the cleaning water is sprayed through a spray head; a first servo motor drives a second rotary shaft to rotate so as to drive the third rotary shaft to rotate to enable an upper brush and a lower brush to clean the surfaces of the gears, and the gears can be cleaned in batches; and the upper surfaces and the lower surfaces of the gears can be cleaned at the same time, so that the gear cleaning efficiency is improved.

The invention discloses a high-applicability pipe surface oxide skin removing device, and belongs to the technical field of pipe surface treatment. The high-applicability pipe surface oxide skin removing device comprises a base, a sand box is rotationally arranged at the top of the base, a spiral blade is fixedly arranged in the sand box, a sealing cover is rotationally connected to the right side wall of the sand box, and a sand inlet is formed in the sealing cover; and feeding rollers fixedly connected to the top of the base are symmetrically arranged on the left side and the right side of the sand box, a pickling tank fixedly connected to the top of the base is arranged on the left side of the feeding roller on the left side, a driving mechanism used for driving the sand box to rotate is arranged at the top of the base, a linkage mechanism is further arranged at the top of the base, and the linkage mechanism realizes intermittent feeding under the linkage of the driving mechanism. According to the high-applicability pipe surface oxide skin removing device, oxide skin on the surface of the pipe can be fully cleaned, secondary cleaning can be avoided, and the workload of workers is reduced.

The invention discloses a car blocking part gripping system and a blocking part gripping method, and belongs to the field of blocking part gripping. The car blocking part gripping system structurallycomprises a robot, car body positioning devices, a blocking part gripping hand, a robot guide rail, a blocking part recovery device and an ultrasonic cleaning machine. The robot is connected to the blocking part gripping hand, the robot is arranged on the robot guide rail, the blocking part recovery device is arranged on one side of the robot guide rail, the ultrasonic cleaning machine is arrangedat the tail end of the robot guide rail, the car body positioning devices are arranged at the four corners of the outer side of the robot guide rail, and the robot and the blocking part gripping handare electrically connected with a robot control cabinet. The car blocking part gripping system and the blocking part gripping method have the advantages of adopting the robot to realize automatic picking, increasing the stability of blocking part picking, avoiding manual operation, reducing labor cost, prolonging the service life and the like.

The invention discloses a high-efficient instant slurry powder and a preparation method thereof; the high-efficient instant slurry powder is prepared from, by weight, 70-85 parts of tackifier, 10 parts of filtrate reducer and 5-15 parts of sediment accelerating agent; the tackifier can completely dissolve within a short time, and reach high viscosity under the condition of low mixing amount, thus the slurry wiredrawing state is good; the filtrate reducer can lighten the water penetration effect, obviously reduce the water loss of the slurry, and play very good stabilizing function of peripheral stratum; the sediment accelerating agent can remove sand and purify the slurry, so as to avoid secondary hole cleaning, control the sand content in the slurry, and reduce the wear of a drill bit by too much gravels; the recycling time of slurry is improved to 8 times, thus the economic cost is saved; the high-efficient instant slurry powder can be widely applied to powder sand layer, clay layer, water-sensitive stratum and other multiple geological conditions; the high-efficient instant slurry powder can protect the well wall for 48 hours without collapse in use.

The invention discloses a greening pruning device for landscaping. The greening pruning device comprises a left shear body and a right shear body, the left shear body and the right shear body are distributed in a staggered mode, and a connecting piece penetrates through the connecting position of the left shear body and the right shear body and is rotationally connected with the connecting position of the left shear body and the right shear body. A first handle and a second handle are correspondingly and fixedly installed at the lower end of the left shear body and the lower end of the right shear body, tooth blades are arranged on the adjacent faces of the left shear body and the right shear body, a pneumatic mechanism is arranged between the first handle and the second handle, a cutting mechanism is arranged on the upper side of the tooth blade of the left shear body, and a power mechanism used for running of the cutting mechanism is arranged in the first handle. Compared with a traditional structure, a user can conveniently drive the cutting mechanism to operate through the power mechanism in the pruning process, large branches and leaves are further cut through displacement of cutting teeth in the cutting mechanism, so that the use efficiency of the device is improved, the operation difficulty of the user is reduced, and the pruning effect is improved.

The invention discloses a separation tank for oil-containing waste water. The separation tank comprises a tank body; four partition walls are fixedly arranged in the tank to successively divide the tank body into an oil discharging chamber, a primary separation chamber, a secondary separation chamber, a ternary separation chamber and a water draining chamber; an oil discharging outlet is arranged at the lower part of the oil discharging chamber; the oil discharging chamber is communicated with the upper part of the primary separation chamber; a submersible pump, an active carbon adsorption layer and a water inlet pipe are arranged in the primary separation chamber; a coarse graining accommodation chamber is arranged in the secondary separation chamber and filled with a coarse grained filling material; the lower part of the ternary separation chamber is provided with a perforating pipe; the perforating pipe is connected with an aerator arranged out of the ternary separation chamber; the ternary separation chamber is communicated with the lower part of the water draining chamber; the lower part of the water draining chamber is provided with a sewage draining outlet; and the central part of the water draining chamber is provided with a water outlet. The separation tank provided by the invention can separate oily substances in oil-containing waste water in a counter-current flowing manner and successively separate the oily substances according to the particle sizes of the oily substances in a sequence from large-particle-size substance to small-particle-size substance.

The invention relates to a floor mopping machine sweeping method and system. The ground is swept through an automatic floor mopping machine. The method comprises the following steps that firstly, an indoor environment and a floor mopping machine storage position are sensed and memorized; secondly, the indoor environment is loaded to a display module in a map mode, and a sweeping range is selected as needed; thirdly, sweeping modes are set, wherein the sweeping modes comprise a first mode of carrying out one-time, quick and all-direction cleaning on preset areas, a second mode of carrying out reciprocating cleaning on preset areas, the reciprocating cleaning is achieved by carrying out overlapped sweeping on the preset areas through single-step cleaning, single-step cleaning comprises two operations of feeding and returning, and the feeding displacement is larger than the returning displacement; the two operations of feeding and returning are included in single-step cleaning, manual floor mopping of people can be simulated, the floor is repeatedly cleaned through feeding and returning, the cleaning quality is effectively improved, and secondary cleaning is avoided.

The invention discloses a novel sand settling tank for quick settling of agricultural sewage. The novel sand settling tank comprises a sand settling tank body which is of a rectangular frame structure, two volume regulating are arranged inside the sand settling tank body and distributed symmetrically according to the center of the same, a clamping connection groove is formed in the surface of thevolume regulating at the left end, is of a rectangular column structure and is matched with a clamping connection block and fixedly connected on the surface of the volume regulating at the right end,a lifting retaining plate is arranged between the two volume regulating and is of a rectangular plate structure, and a volume regulating is arranged inside the sand settling tank body and cooperates with a cylinder to move leftwards and backwards so as to regulate volume inside the sand settling tank body. Difficulty in excavating due to the fact that precipitate is close to the bottom of the sandsettling tank when there is little sewage is avoided.

The invention relates to a web, a die used for producing the web, a web production method and a blade. The web comprises more than two support plates which are mutually arranged along a first direction at intervals, each support plate has a first end part and a second end part which are related along a second direction, the first end parts of more than two of the support plates are relatively arranged, and the second end parts are relatively arranged, the web also comprises a shoulder part for connecting the first end parts of more than two of the support plates, wherein the web is arranged ina hollow space and is connected with one of a windward side housing and a lee side housing through the shoulder part, and is connected with the other one of the windward side housing and the lee sidehousing through the second end parts of the more than two of the support plates. When the web is arranged to the blade, is convenient for installation, and can guarantees the production quality and usage life of the blade.

The invention discloses a multifunctional deciduous leaf collecting device which comprises a deciduous leaf collecting part, a rake body and a mounting bracket. The rake body is slidably mounted abovea deciduous leaf collecting bucket through the mounting bracket; the deciduous leaf collecting part comprises a deciduous leaf collecting opening, the deciduous leaf collecting bucket and a deciduousleaf collecting bag; the upper end face and the lower end face of the deciduous leaf collecting bucket are each in an isosceles trapezoid, and the four side faces of the deciduous leaf collecting bucket are each of a rectangular structure; openings are formed in the two opposite parallel side faces of the deciduous leaf collecting bucket, wherein the deciduous leaf collecting opening is formed inthe end with the smaller opening area; the end, with the larger opening area, of the deciduous leaf collecting bucket communicates with the deciduous leaf collecting bag; the deciduous leaf collecting opening is composed of two vertical baffles arranged in an inverted-V shape; and the end, away from the deciduous leaf collecting bucket, of the deciduous leaf collecting bag forms a pouring opening, and the pouring opening is sealed through an opening binding rope. The multifunctional deciduous leaf collecting device has the advantages that the structure is simple, operation is easy and convenient, and the labor intensity of a worker is lowered.

The invention relates to the technical field of double-zero aluminum foil production, and particularly discloses a filtering device for double-zero aluminum foil production. The filtering device comprises a supporting seat, a heating filtering mechanism arranged at the upper end of the supporting seat and a lifting rotating mechanism arranged on the side surface of the supporting seat. The heating filtering mechanism is composed of a filtering bin, a filtering barrel, a heating plate assembly and a lifting and filtering assembly. The filtering bin is fixedly mounted at the upper end of the supporting seat. The lifting rotating mechanism is composed of a rotating supporting assembly and a lifting supporting assembly. According to the invention, a pulling cylinder retracts to drive a pulling base plate to be pulled upwards in a barrel core, so that molten aluminum in the barrel can be quickly gathered into a bin barrel through filtering holes, and the filtering efficiency is improved. When the pulling base plate moves upwards, filter residues on the inner wall of the barrel core are scraped off, the filter residues are collected on the pulling base plate, the pulling base plate is separated from the interior of the barrel core through the retraction action of the pulling cylinder and the extension action of a lifting cylinder, secondary residue cleaning in the barrel core is avoided, and the workload is reduced.

The invention relates to a grass trimmer comprising a handle assembly, an operation rod, a housing connected with the operation rod, a motor contained in the housing, a trimming head driven by the motor, a roller assembly connected with the housing and having a wheel shaft, and a fan mechanism having an air vent; the air vent and the operation rod are arranged on two opposite sides of the housing; in a trimming state of the grass trimmer, the wheel shaft is parallel to an output shaft of the motor; a distance between the wheel shaft and the motor output shaft is a first edge; a distance between a center point of the air vent and a straight line, on which the motor output shaft is located, is a second edge; the angle between the first edge and the second edge is between 30-70 degrees. The trimmed smash grasses and mud are cleaned in the meadow in orientation, so secondary cleaning is not needed.

The invention provides channel excavation, rapid consolidation and supporting integrated equipment which comprises a heading machine body, a heading device, a conveying device, a reinforcing device and a supporting device. The heading device is arranged at the front end of the heading machine body. The conveying device is arranged below the soil discharging position of the heading device. The reinforcing device and the supporting device are arranged behind the heading machine body. A heading head of the heading device is adopted, channels can be excavated conveniently, the excavated channels are formed at a time, work efficiency is high, and the channels are ordered. The conveying device is adopted, soil of the excavated channels can be conveyed to one sides of the channels, and the situation that the channels are damaged due to the fact that soil falls down, the channels need to be treated secondarily, and the efficiency is influenced is avoided. The reinforcing device is adopted, theexcavated channels are reinforced, the situation that quick soil exists beside the channels during excavation is avoided, and preparations are made for subsequent supporting. The supporting device isadopted, the excavated channels are supported, the supported channels are integrally formed, and the surfaces are compact and smooth.

The invention relates to a single-ring porous construction device for removing unsolidified concrete pile head overall. The single-ring porous construction device comprises a fan-shaped blade box, a single-ring porous ring body and a power bracket, and is characterized in that the fan-shaped blade box, the single-ring porous ring body and the power bracket are included, the fan-shaped blade box isconnected with the power bracket removably; the single-ring porous ring body is connected with the fan-shaped blade box fixedly, and the lower part of the power bracket is connected with the single-ring porous ring body through a rectangular steel sheet; the power bracket and the rectangular steel sheet are internally provided with water through gas pipes, and the single-ring porous ring body isof a three-ring bearing structure; and a middle ring is provided with a plurality of circular holes, and the bottom surface of the single-ring porous ring body is provided with a sliding block. By using a unique single-ring porous structure, when the sliding block on the lower side of the single-ring porous ring body is located at different positions, the single-ring porous construction device canadapt to concrete piles in different steel bar layers, positions and diameters; overall removal is performed when concrete is unsolidified; and the construction efficiency is high, and secondary cleaning of the concrete is avoided.

The invention relates to the field of stoves, in particular to a gas stove. The gas stove comprises a stove body, a cleaning structure, a dust blocking and settling structure and a slide rail structure, wherein the cleaning structure is connected to the stove body; the cleaning structure comprises a first stripped frame, a first lead screw, a Z-shaped stripped rod, first slide blocks, a first motor, a cleaning roller brush and a collection box; a back side wall of the stove body is connected with the first striped frame; two first slide blocks which are arranged symmetrically are connected inside the first stripped frame in a sliding way; a first motor is arranged on an outer side wall of the first stripped frame; and an output end of the first motor passes through the first stripped frame, and is connected with the first lead screw. The gas stove provided by the invention has the advantages that the surface of the stove body can be cleaned through the horizontal movement of the cleaning roller brush; cleaning scraps fall into the collection box to be collected, and are prevented from flowing to the surface of the stove, thereby preventing secondary cleaning of the stove; moreover,the cleaning and wiping process is carried out in an electrical way, so that convenience is brought to operation, and the wiping efficiency is improved.

The invention discloses safe aluminum alloy cutting equipment, and relates to the field of aluminum alloy machining. The safe aluminum alloy cutting equipment comprises a base, a supporting frame is fixedly connected to the top of the base, limiting arc-shaped grooves are formed in the front side and the rear side of the interior of the supporting frame, a connecting steering mechanism is arrangedbetween the two limiting arc-shaped grooves, a cutting mechanism is installed on the connecting steering mechanism, cleaning protection mechanisms are arranged on the two sides of the supporting frame, and each connecting steering mechanism comprises a first driving motor. A steering head is driven by the first driving motor to rotate, the position of a cutting head is changed, then a second drive motor rotates to drive a locking head limiting block to be locked, and therefore the steering head can be fixed, the cutting head can be rapidly switched, the cutting efficiency is improved, an electric push rod is started to push a fan-shaped protective shell or a protective sleeve to move, and the idle cutting head is cleaned and protected, so that secondary cleaning can be avoided, the laborintensity is reduced, and the use convenience and safety are improved.

The invention discloses an efficient cleaning mechanism for a carving machine. The efficient cleaning mechanism comprises a carving machine body, wherein a driving device fixedly arranged on a bracketof the carving machine body; a carving knife is movably arranged at the lower end of the driving device; a box body is arranged on one side of the carving machine body; the lower end of the driving device is sleeved with a screw sleeve; the screw sleeve is fixedly connected with the lower end of the driving device through a bearing; a vertical guide groove is formed inside the bracket of the carving machine body; a guide rod is arranged in the guide groove; one end of the guide rod is fixedly provided with a fixing plate; one side of the fixing plate is fixedly connected with the screw sleeve; a triangular plate is fixedly arranged on the bottom surface of the fixing plate; one side of the triangular plate is fixedly provided with a blower; the blower corresponds to the lower end of the carving knife and a workbench of the carving machine body; the box body is fixedly installed on one side of the bracket of the carving machine body; and one side of the box body is provided with an opening and a door body. When chalk powders are more in a bag, the door body is opened, a rope is untied, the bag can be taken off a connecting pipe, and therefore, the bag can be cleaned.

The invention relates to a steel channel punching device. The steel channel punching device comprises a machine body, a material supporting mechanism, two side face punching units, a bottom surface punching unit and a cutoff unit. The bottom surface punching unit is arranged behind the side face punching units. A steel channel supported by the material supporting mechanism is provided with a downward opening. The two side face punching units are arranged in bilateral symmetry in a front-back staggered mode. Each side face punching unit comprises a punch die frame, a transmission lead screw anda punching cylinder, wherein the transmission lead screw and the punching cylinder are driven by a servo motor; the transmission lead screw is fixedly connected relative to the machine body; the punch die frame is fixedly connected with one end of the transmission lead screw; the punch die frame is provided with a U-shaped transition part; one side of the U-shaped transition part is provided witha punching female die, and the other side of the U-shaped transition part is provided with a through hole; and a pressure head of the punching cylinder penetrates through the through hole to be fixedly provided with a punch pin. Through change of the mounting direction of the steel channel and redesign of a side face punching mechanism, the steel channel punching device realizes internal punchingmachining in a confined space and has the beneficial effects of high machining efficiency and low cost.

The invention relates to a high-purity corundum powder and a preparation method thereof. According to the technical scheme, a corundum block material is subjected to crushing to obtain corundum blockballs with the particle size of 30-50mm and disentegrated particles with the particle size smaller than 30mm; the disentegrated particles are subjected to crushing, and screening and grading to obtaingranular materials I with the particle size larger than or equal to 0.09mm and smaller than 8mm; the granular materials I are subjected to magnetic separation, iron removal, crushing, screening and grading to obtain granular materials II with the particle size larger than or equal to 0.09mm and smaller than 3mm; the granular materials II are subjected to magnetic separation, iron removal, crushing, screening and grading to obtain granular materials III with the particle size larger than or equal to 0.09mm and smaller than 1mm; the granular materials III and the corundum block balls are subjected to magnetic separation and iron removal correspondingly; the granular materials III after iron removal are mill-grinded by the corundum block balls after iron removal and then subjected to hydraulic grading to obtain one-time purified fine powder with the particle size larger than or equal to 0.04mm and smaller than 0.09mm; and the corundum block balls after magnetic separation and iron removal are used as a grinding medium, grinding and pure-water washing are carried out to obtain the high-purity corundum powder. According to the high-purity corundum powder and the preparation method thereof, the production cycle is short, the cost is low, introduction of new impurities is avoided, and produced products are of high purity.

The invention discloses a novel board processing device. The device comprises a forward-backward moving driving rack, and a moving rack which is movably mounted on the forward-backward moving drivingrack, wherein spiral chambers which are symmetrically arranged at the left and right and penetrate in the front-back direction are formed in the moving rack; the forward-backward moving driving rack comprises spiral columns which are mounted in the spiral chambers in a spiral fitting manner and extend in the front-back direction; the rear extending ends of the spiral columns are rotatably mountedto front and back symmetric supporting plates in a fitting manner; the front extending ends of the spiral columns are mounted to a main moving driving machine in a fitting manner; the outer surface ofthe main moving driving machine is mounted in the supporting plates; a storing groove is formed in the top end surface of the right side of the moving rack; a sunken groove is formed in the top end surface of the left side of the moving rack. The device is simple in structure, and convenient to operate; sizing is prevented from waste; the material soaking work can be automatically controlled; andmeanwhile, the painting efficiency and quality can be improved.

The invention discloses a pit digging device for rocky desertification region government. The pit digging device comprises a vehicle frame, a wheel frame, wheels, a pit drilling mechanism and a shovelpushing mechanism, wherein the wheel frame comprises two front wheel frames and rear wheel frames; each front wheel frame comprises a moving mechanism and a wheel connecting rod; an elastic componentis arranged in each moving mechanism; the shovel pushing mechanism is connected with the vehicle frame, and is located on the outer side of the vehicle frame; the shovel pushing mechanism is providedwith a soil pushing shovel; the soil pushing shovel is provided with a soil pushing shovel sunken part; and the lower end of the soil pushing shovel adopts an arc shape. According to the pit diggingdevice disclosed by the invention, the wheel frame and the shovel pushing mechanism are arranged, the pit digging efficiency can be improved, the moving is convenient, and the equipment damage is reduced.

The invention discloses an automatic cleaning mechanism for a trough of an animal farm. The automatic cleaning mechanism comprises a conveying belt, a driving device and trough bodies, the conveying belt is rotationally connected to the centers of the two ends of the driving device in a sleeving mode, and the trough bodies are evenly and fixedly installed at the top end of the driving device; and the driving device internally comprises a first transmission gear, a driving motor, a first transmission rod, a driving gear, a supporting frame, threaded rods, a second transmission gear, a first transmission belt and a second transmission belt, the supporting frame is fixedly installed in the center of the interior of the driving device, and the threaded rods are symmetrically and rotationally installed on the two sides of the top end of the supporting frame. By controlling forward and reverse rotation of the threaded rods, a cleaning device can automatically clean the interior of the feeding trough, meanwhile, cleaned feed can be conveyed synchronously, secondary cleaning of the feed is avoided, therefore the working efficiency of cleaning the interior of the feeding trough is improved, and the labor intensity of workers is reduced.

The invention discloses a servant type sweeping robot for cleaning a shopping mall. The sweeping robot structurally comprises an induction head, a machine body and sweeping arms, the induction head isarranged at the top end of the machine body and electrically connected with the machine body, and the sweeping arms are mechanically connected to the two sides of the machine body; the other end awayfrom an installation opening of each sweeping arm is provided with a butt joint opening matched with a brush. The machine body comprises a warping handle, an ash removing opening, a chassis, moving wheels, a storage battery opening and a dust collecting opening, and the storage battery opening and the dust collecting opening are formed in the chassis. A first dust collecting cavity and a second dust collecting cavity jointly act, the dust collecting opening is formed in the second dust collecting cavity, when sundries are sucked in, firstly, the sundries need to be treated through the seconddust collecting cavity, and package bags sucked into the dust collecting opening are cut into pieces through efficient shearing force formed under high-speed rotation by using cutting blades and a high-speed rotating shaft in the second dust collecting cavity, so that fine fragments are formed and cannot block a dust discharge channel, and meanwhile, the occupied area of the package bags in a dustcollecting box can be reduced.