107results about How to "Does not affect passing" patented technology

The invention provides a rotating rail replacing device which is arranged on the top or the bottom of a guide rail bracket allowing two construction elevator cages to move up and down or other portions where rails need to be replaced. The rotating rail replacing device comprises a fixed rack body, a rotating rack body and rails. The rotating rack body comprises an upper rotating transition joint, a middle joint and a lower rotating transition joint which are sequentially connected from up to bottom. The upper rotating transition joint and an upper fixed transition joint are connected in a rotating mode through a bearing and are locked through a rotating locking device, the lower rotating transition joint and a lower fixed transition joint are connected in a rotating mode through a bearing and are locked through a rotating locking device, and the rotating rack body rotates along a rotating shaft where the bearings are placed. The number of the rails is two, and the rails are in central symmetry relative to the rotating shaft. Each rail comprises a fixed rack body section and a rotating rack body section. The rotating rail replacing device is suitable for rail replacing under the condition that the rails cannot form a loop, the problem that an elevator cannot achieve rail replacing in existing rack and gear type construction is solved, the need for replacing the rails quickly and reliably is met, the utilization rate of the rails is improved, the effect is improved, and the cost is saved.

The invention discloses a rail type rope traction aerial passenger device. A rail which is parallel to a traction steel wire rope is arranged above the traction steel wire rope; the traction steel wire rope is used for pulling a passenger device to run on the rail; the middle section of the traction steel wire rope is stabilized and guided by a rope pressing wheel supporting device; and a tail wheel is mounted on a tensioning device. The rail type rope traction aerial passenger device has the following technical effects: 1. the middle section of the traction steel wire rope is clamped into the rope pressing wheel supporting device so that the rail type rope traction aerial passenger device can change the slope and make a turn, and the passing of a rope clip is not influenced; the structure is simple, few consumable materials are used, the cost is low and the safety is high; 2. the vertical rope clip is adopted, can effectively run while bearing a passenger, also can guarantee that the passenger distance can be randomly adjusted, and can conveniently pass through the rope pressing wheel supporting device, a driving wheel and the tail wheel; the vertical state can be automatically adjusted at uphill and downhill parts and the device is comfort to take; and 3. the retractable rail is arranged in the tensioning device so that the traction steel wire rope and the rail are tensioned simultaneously and the stability is good.

The invention relates to a multi-junction solar cell with a metal reflector and a preparation method thereof. According to the method, an Ohmic contact current channel with partial contact is manufactured on a multi-junction solar cell structure, a second cap layer in other areas is removed, and transparent conductive dielectric material and a vapor plating metal reflector, a barrier metal layer and a bonding metal are manufactured in order. The bonding technology is employed, an epitaxial wafer is bonded to a second substrate, the epitaxial wafer with the removal of a first substrate is subjected to electrode vapor plating, an electrode pattern is formed through photoengraving, at the same time, a superfluous second cap layer is removed and then the alloying is carried out, an antireflection film is subjected to vapor plating, an electrode pattern is formed through photoengraving, a back side metal is subjected to vapor plating, and the alloying is carried out. According to the cell and the method, in the process of bonding, the metal reflector is prepared, the cap layer which adsorbs light heavily is removed, extra light is reflected back to the cell, the light utilization rate is improved, and the efficiency of the cell is improved.

The invention provides a plug type sand control method for a slim hole sidetracked well. The method includes the following steps that S1, a production string is pulled out; S2, a sand washing string is placed in; S3, after the sand washing string is placed at a sand surface position, sand washing is conducted; S4, a sand control string is completed; S5, a pressure test is conducted on a surface pipeline; S6, a shaft is filled; S7, prepad fluid is used; S8, plug type gravel filling is conducted on the shaft; S9, displacement fluid is used; S10, waiting on cement setting is conducted; S11, plug drilling and plug reserving are conducted. A sand blocking column plug is formed in the shaft of a sand control target stratum through consolidation chemical sand control proppants in a low pumping pressure filling mode, formation sand is effectively blocked outside the shaft and prevented from entering the shaft; due to the fact that the permeability of the sand blocking column plug is about 2 micron<2>, formation fluid passing is not affected, the purposes of sand control and production maintenance are achieved, the problems that the construction risk of conventional high pumping pressure gravel filling is high, the quantity of low pumping pressure gravel filling is small, a continuous sand blocking barrier is difficult to form, and the sand control effect is not ideal are solved, the one-time success rate of the method applied to sand control of the slim hole sidetracked well is one hundred percent, and the time of single well continuous production exceeds 500 days.

The invention discloses a superhigh-efficiency anammox reactor, which is provided with a sediment zone, a reaction zone and a bracket. The sediment zone is sequentially provided with a first outer cylinder, an overflow weir, a water outlet, a backflow port, an annular wire netting and a two-stage three-phase separator from top to bottom. The two-stage three-phase separator comprises a first gas collecting tube, a first reducing pipe, a second gas collecting tube and a second reducing pipe. The overflow weir is communicated with the water outlet, the backflow port is positioned between the overflow weir and the annular wire netting, the inner ring of the annular wire netting is connected with the outer wall of the first gas collecting tube, and the outer ring of the annular wire netting is connected with the inner wall of the first cylinder. The reaction zone comprises a second outer cylinder, an iron powder carrier, a water inlet tube and a hemispheroid. The reaction zone is connected with the sediment zone through an outer cylinder increasing coupling and is directly connected with the bracket, and both the reaction zone and the sediment zone are provided with dredge pipes. The invention effectively prevents sludge loss, reduces gas disturbance, promotes the natural sedimentation of granules, reduces the toxicity of the base material and ensures the operating performance of the reactor to be efficient and stable.

The invention discloses a refrigeration house system. The refrigeration house system comprises a warehouse and a warehouse door, and further comprises an insulation passage which is mutually connected with the warehouse door; a fan which can blow to the outside of the warehouse is arranged in the insulation passage; insulation curtains are arranged on at least one of the warehouse door and the end of the passage; the insulation passage extends to the inside of the warehouse; the insulation curtains are PVC soft curtains or cloth curtains; and the insulation curtains are automatic curtains. By adopting the refrigeration house system, not only is a refrigeration house further insulated from outside heat, but also the temperature change of the area near the warehouse door in the refrigeration house is much smaller; as the temperature change of the storage area is small, the operatingtime of the refrigeration house is shortened; an electricity-saving effect is also reached; and even if goods input and goods output are frequent, the influence to the temperature difference in the refrigeration house is small, so that the quality of refreshment goods is completely ensured.

The invention relates to a bottle inspection and elimination device which can rapidly and stably eliminate unqualified bottles and does not influence the passing of qualified bottles. The bottle inspection and elimination device comprises a plurality of elimination fingers which are sequentially and adjacently arrayed along the conveying direction of bottles from short to long, wherein when bottles are detected to have no cover, have inclined covers or have no aluminum film, the plurality of elimination fingers are forwards turned to be in the horizontal state from the vertical state in sequence and then are reset; the longest elimination finger is used for conveying the bottles into an entrance of a rotary table type recycling mechanism so as to stably and rapidly eliminate the unqualified bottles and prevent the bottles from falling down; meanwhile, the subsequent passing of qualified bottles is not influenced.

The invention relates to a squeezing device used for fruits, and belongs to the technical field of household machines for filtering food. The device comprises a cabinet and a motor. A baffle in the cabinet divides the device into a squeezing cavity and a ventilation cavity. The squeezing cavity is internally provided with a juicing plate, a filter plate, and a filter screen from top to bottom. Aninner wall of the squeezing cavity is slidably cooperated with the juicing plate by threads. The bottom surface of the juicing plate is provided with a first groove. The first groove is internally slidably connected with a cutting plate. The cutting plate is connected with a cutting blade. A second groove is arranged under the cutting plate. The filter plate is provided with projections. The filter plate is provided with holes. The motor is connected with a telescopic rod. The telescopic rod is coaxially connected with a first cam. A pressing cylinder body is internally slidably connected witha piston. One side of the piston is connected with a piston rod, and the other side of the piston is connected with a spring. The first cam can be cooperated with the piston rod. The cylinder body iscommunicated with a conduit. The ventilation cavity is internally rotatably connected with a fan. The fan is coaxially connected with a second cam. The second cam is under the filter screen. The scheme would not block the filter screen, and fruit squeezing effect is good.

The invention discloses a brake device of track conveying equipment. An oil cylinder is installed on a supporting frame. A lower push rod and an upper push rod are installed on two sides of the oil cylinder respectively. A guide rod frame is installed on the upper side of the oil cylinder. A spring push plate is installed on the upper push rod, and a spring is installed between the spring push plate and the guide rod frame. A press plate is installed at one end of the lower push rod. A brake rod is installed on the lower side of the press plate. A connecting rod is installed on the upper side of the press plate, and the other end of the connecting rod is connected with a rotary brake claw. The rotary brake claw is installed on the supporting frame through a rotary shaft of the rotary brake claw. The brake device of the track conveying equipment has the technical benefits that 1, the top surface and two lateral surfaces of a track can be braked simultaneously, the brake speed is high, and the brake effect is good; the rotary brake claw can hook the track, prevent a track conveying brake vehicle from disengaging from the track and prevent the brake vehicle from overturning; 2, the brake vehicle is not affected when passing through a track turnout; 3, the brake device is convenient to install and maintain.

A roller type water injection well centering device relates to a water injection well centering device. The invention aims to solve the problems that the existing nylon centering device and spring leaf centering device have large contact surface and friction force with the inner wall of the tubing string and the roller centering device has long axial length so as to influence the installation of instruments in the tube. The main body of the centering device comprises a cross sliding plate and two bolt heads which are integrated together, wherein each arm of the cross sliding plate is providedwith an installation slot, the long holes on the two side walls are the same and opposite, the bottom surface of each installation slot is provided with a first blind hole, a roller is arranged in a roller slot, the roller is connected with a slide block through a long pin, one roller component is arranged in each installation slot on the cross sliding plate, the two ends of the long pin of the roller component separately penetrate through the corresponding long hole, and a compressed spring is arranged between each first blind hole and each second blind hole. The invention is used for centering the testing instrument and the inner wall of the water injection well when the oilfield water injection well is tested.

The invention relates to an acete chinensis trap net capable of releasing rhopilema esculentum and an assembling method thereof, and belongs to the technical field of marine fishing. Under the circumstance of not changing the performance of catching acete chinensis, rhopilema esculentum blocking and separating net pieces are obliquely and additionally installed in a main net in a single body tapercapsular bag shape to form a net-within-net structure, and a rhopilema esculentum releasing opening is reserved in the back middle position of an upper side gap of a main netting in the single body taper capsular bag shape. The suitable integral floating and sinking ratio is selected, a big floating ball is additionally installed in the net, and by adjusting the length of a big floating ball outline, aimed fishing is conducted. The trap net is simple in structure, easy to manufacture, convenient to operate and low in cost; the rhopilema esculentum can be effectively released, and the fishingperformance of the acete chinensis trap net cannot be influenced.

The invention relates to a pressure-balancing flow-balancing honeycomb checker brick, which can effectively solve the problems of low through hole rate, strong intense pulse generation, nonuniform air volume, and short service life; the checker brick comprises a brick body and through holes; the brick body is a regular hexagonal cylinder; the through holes are uniformly distributed on the brick body; the axis of the through holes is vertical to the cross section of the brick body; the upper ends are smaller than the lower ends of the through holes; and thus conic through holes of the checker brick are formed; an upper end surface annular groove is disposed outside the periphery of a central hole on the upper end surface of the brick body, adopts the central hole as a center, and is bendedas an arc; the upper end surface annular groove is communicated with an intersectant conic through hole; three bosses are uniformly distributed on the lower end surface of the brick body; round grooves with the central hole as a center are disposed among the three bosses; the conic through holes are communicated with the round grooves; conic grooves which occupy half of the through hole cross sections are uniformly distributed on each side surface of the brick body; the invention has a lot of gas channels, and good using effect; balanced exchange of gas flow is realized vertically and horizontally; deformation or displacement is not easy to occur, and the service life of the regenerative chamber checker brick is prolonged.

The invention discloses trestle-type full-section inverted arch secondary-lining trolley equipment and a construction method thereof. The trestle-type full-section inverted arch secondary-lining trolley equipment comprises a self-propelled trestle; rail ways are arranged on the self-propelled trestle; an inverted arch mould plate trolley and a secondary-lining trolley which do not interfere with each other in movement are arranged on the rail ways; the lower end of the inverted arch mould plate trolley is lifted with an inverted arch mould plate used for pouring the bottom surface of a tunnel;a secondary lining mould plate used for pouring the top surface of the tunnel is arranged above the secondary-lining trolley; the overall secondary-lining trolley is of an inverted U-shaped structure; the secondary-lining mould plate is formed by hinging a top mould to the side moulds on the two sides of the top mould; the top mould is arranged at the top end of the secondary-lining trolley; theside moulds are hinged to the two sides of the secondary-lining trolley through side mould oil cylinders; lifting posts which can lift up and down are arranged on the two sides of the secondary-liningtrolley; and moving wheels are arranged at the lower ends of the lifting posts. According to the trestle-type full-section inverted arch secondary-lining trolley equipment and the construction methodthereof, the bottom surface and the top surface of the tunnel can be poured and constructed simultaneously; the excavation of the tunnel is not affected in a construction process; moreover, the passage of a construction equipment vehicle in the tunnel is not affected; and the construction efficiency is improved.

The invention discloses a photovoltaic power supply-based electric sweeper with a garbage collecting box having exhausting and dust suction functions. According to the electric sweeper, a portable electric tricycle is taken as a carrier, multiple foldable solar cell panels are used for charging a vehicle-mounted storage battery, and the electric sweeper is energy-saving and environment-friendly by adoption of clean energy sources; a sweeping effect is excellent by adoption of a sweeping manner of combining horn-shaped brushes and roll brushes; a garbage collecting box adopts a self-unloading structure and is matched with an automatically-opened / closed tail door, and thus the working efficiency is high and the labor intensity of working personnel can be greatly lightened; a relative negative pressure suction effect can be formed in the garbage collecting box by means of cyclone formed in a relatively sealed roll brush chamber; because the garbage collecting box has the exhausting and dust collection functions, garbage of different sizes and dust can be sucked into the garbage collecting box by utilizing a cyclone principle, so that the energy consumption is low and the sweeping effect is good.

The invention discloses a railway and highway intersection road interception system. The railway and highway intersection road interception system comprises ground mounting plates fixedly mounted on the two sides of a railway, wherein a left supporting rod is fixedly arranged at the left end of the upper end face of each ground mounting plate; a turnover handrail is rotatably arranged at the upperend of the rear end face of each left supporting rod; a lifting interception device is arranged in each ground mounting plate and positioned on the right side of the corresponding left supporting rod, and a storage cavity which is positioned in the corresponding ground mounting plate and provided with an upward opening is formed in each lifting interception device; an upper interception rod is arranged at the opening in each storage cavity in an up-down sliding mode, and a lower interception rod slidably connected to the inner wall of the corresponding storage cavity is arranged on the lowerside of each upper interception rod. According to the railway and highway intersection road interception system, the turnover handrails are arranged, meanwhile, the interception rods capable of beinglifted and unfolded are arranged on the lower sides of the turnover handrails, the lower side parts of the turnover handrails can be fully intercepted through the interception rods, and the situationthat people or animals enter the railway from the lower part is avoided; and the interception rods can be stored in the ground mounting plates when not used, and thus passing of vehicles is not affected.

The invention relates to a multi-junction solar cell with a metal reflector and a preparation method thereof. According to the method, an Ohmic contact current channel with partial contact is manufactured on a multi-junction solar cell structure, a second cap layer in other areas is removed, and transparent conductive dielectric material and a vapor plating metal reflector, a barrier metal layer and a bonding metal are manufactured in order. The bonding technology is employed, an epitaxial wafer is bonded to a second substrate, the epitaxial wafer with the removal of a first substrate is subjected to electrode vapor plating, an electrode pattern is formed through photoengraving, at the same time, a superfluous second cap layer is removed and then the alloying is carried out, an antireflection film is subjected to vapor plating, an electrode pattern is formed through photoengraving, a back side metal is subjected to vapor plating, and the alloying is carried out. According to the cell and the method, in the process of bonding, the metal reflector is prepared, the cap layer which adsorbs light heavily is removed, extra light is reflected back to the cell, the light utilization rate is improved, and the efficiency of the cell is improved.

The invention discloses a three-dimensional sewer cleaning device for municipal construction, comprising a motor, a first rotating shaft, a roller, a pulley, a slider, a support rod, a brush, a collection box, a bottom plate of the collection box, a first screen, and a first tooth plate , the second rotating shaft, the salvage mechanism, the baffle plate, the second tooth plate, the cross bar, the reinforcing rib, the drum turntable and the second screen. The beneficial effects of the present invention are: the present invention adopts a drum structure with a screen, which makes the whole body rotate under the action of the water flow inside the sewer. It is economical and environmentally friendly. The collection box with a special structure is used to collect the lifted garbage to realize circular salvage, and the collection of garbage is convenient for later treatment, which effectively prevents the occurrence of garbage clogging the sewer and avoids the sewer The occurrence of garbage entering rivers to pollute the environment.

The invention relates to the technical field of ultraviolet sterilization, and discloses an overflow type ultraviolet sterilization module which comprises a sterilization module main pipe body, a water inlet pipe and a water outlet pipe symmetrically communicate with the sterilization module main pipe body, and an impurity filtering mechanism is mounted in the water inlet pipe, the impurity filtering mechanism comprises a sealing bearing, the sealing bearing is fixedly connected to the inner pipe wall of the water inlet pipe, a supporting ring is fixedly connected to the inner ring wall of thesealing bearing, the two ends of the supporting ring penetrate through the sealing bearing and extend outwards, a filtering net pipe with an opening in one end is arranged in the supporting ring, a pipe opening of the filtering net pipe is far away from the sterilization module main pipe body, the two ends of the filter screen pipe penetrate through the supporting rings and extend outwards, and the upper end of the inner pipe wall of the filter screen pipe is fixedly connected with a cross-shaped supporting frame. Impurities are prevented from entering the sterilization module main pipe body,normal use of the overflowing type ultraviolet sterilization module is guaranteed, passing of water is not affected, and meanwhile the impurities in the filter screen pipe are conveniently removed.

The invention discloses a manual water flow velocity measuring device for water conservancy monitoring, and relates to the technical field of water conservancy monitoring. The manual water flow velocity measuring device for water conservancy monitoring comprises a handheld rod, a speed measuring box is arranged at the lower end of the handheld rod, floating devices are arranged on the front outersurface and the rear outer surface of the speed measuring box respectively, a speed measuring device is arranged in the speed measuring box, an annunciator is arranged on the upper surface of the speed measuring box, and the lower surface of the annunciator is fixedly connected with the middle of the left end. The lower surfaces of the two semicircular blocks are fixedly connected with the middlepart of the upper surface of the speed measuring box; When the measuring device is used, an operator arrives at a measuring water area, holds the anti-skid rod with hands, puts the speed measuring boxinto water, the round blocks keep the speed measuring box horizontal, water flow flows through the speed measuring box to enable the fan blades to rotate, and the fan blades rotate to drive the rotating rod to rotate to enable the motor to work. the annunciator transmits flow rate data When the flow velocity needs to be measured in a floating mode, the floating plates on the front face and the rear face of the velocity measurement box are opened to provide buoyancy to enable the velocity measurement box to measure the water velocity in a floating mode.

The invention provides anisotropic magnetoresistance and a preparing method for improving the Z-axis sensitivity of the anisotropic magnetoresistance. After ordinary Z-axis vertical magnetoresistance is formed, an etching barrier layer is formed on the surface of the vertical magnetoresistance, then, compensating magnetoresistance is formed on the surface of the etching barrier layer, next, the compensating magnetoresistance positioned in the region on the substrate surface is etched, and the compensating magnetoresistance positioned on the groove side wall is reserved, so that the thickness of the compensating magnetoresistance on the groove side wall is increased under the condition of not increasing the surface magnetoresistance thickness, in addition, the etching barrier layer does not influence the magnetic field passing, and the performance of the anisotropic magnetoresistance cannot be influenced.

The invention discloses trestle type lower-opening full-cross-section synchronous construction equipment and a construction method thereof, and belongs to the technical field of tunnel construction and underground engineering. The equipment comprises a self-propelled trestle, wherein a full-cross-section template trolley is arranged on the self-propelled trestle; an integral framework of the full-cross-section template trolley is in a reverse U shape; a top die is arranged above the full-cross-section template trolley; the two ends of the top die are hinged to side dies; the side dies are connected with the full-cross-section template trolley through side oil cylinders; a bottom die is hinged to the lower end of each of the two side dies, and hinging positions are connected through a bottom oil cylinder; the two bottom dies are mutually connected through a bottom connecting rod; the top die, the side dies and the bottom dies jointly form a full-cross-section template of a tunnel; ascending and descending posts controlled to vertically ascend or descend by ascending and descending oil cylinders are arranged at the two sides of the full-cross-section template trolley; and the lower end of each ascending and descending post is provided with a moving wheel. The trestle type lower-opening full-cross-section synchronous construction equipment and the construction method have the advantages that the simultaneous pouring construction of the full cross section of the tunnel can be realized; in the construction process, the tunnel excavation is not influenced; the passing of construction equipment vehicles in the tunnel is not influenced; and the construction efficiency is improved.

The invention provides an automatic drainage grate and method. The automatic drainage grate comprises a grate body, a grate base, a jacking mechanism and a control mechanism, wherein the grate body and the grate base are connected in a turnover manner through a grate hinge pin; the jacking mechanism is arranged on the other side, relative to the grate body, of the grate hinge pin, the control mechanism is electrically connected with the jacking mechanism, the jacking mechanism is used for controlling the grate body to bounce or fall at a certain angle according to the instruction of the control mechanism, the jacking mechanism further has compressibility, and the jacking mechanism is automatically pressed down and bounced according to external pressure; and the control mechanism comprisesa rainfall detection device, and the control mechanism automatically controls opening and closing of the jacking mechanism according to the rainwater water flow pressure transmitted through the rainfall detection device. The grate can be automatically controlled, time and labor are saved, and the risk of overall cover opening is reduced; and due to the fact that the grate body is fixed, the risk that the grate body is lost is reduced.

The invention provides a transformer neutral point capacitive DC blocking device adopting a high-capacity high-voltage capacitor and BOD protection. The device comprises an isolating switch, the high-capacity high-voltage capacitor, a voltage divider, a resistor, a discharging gap, a current mutual inductor and a current sensor. The isolating switch, the high-capacity high-voltage capacitor, the current sensor and the current mutual inductor are connected in series and connected between the neutral point of a transformer and the ground. The voltage divider, the resistor and the discharging gap are respectively connected in parallel with the high-capacity high-voltage capacitor. After the device is connected in series with the neutral point of the transformer, DC current entering the neutral point of the transformer can be effectively eliminated without influencing normal grounding of an AC system or passing of AC zero sequence current so that safe operation of the system can be ensured. The device is easy and convenient to operate, compact in structure, small in size and convenient to transport without influencing the overall layout of intra-station equipment after installation. Besides, the high-capacity high-voltage capacitor is high in withstand voltage, high in current withstand capacity and also high in safety and reliability.

The invention discloses an indoor humidity measuring instrument. The indoor humidity measuring instrument comprises a shell; a humidity measuring device is arranged in the shell; the humidity measuring device comprises a humidity sensor; the humidity sensor comprises a measuring probe and two guide pins; the two guide pins are electrically connected with an amplifying circuit; the amplifying circuit is connected with a rectification circuit; the rectification circuit is connected with a single-chip microcomputer; the single-chip microcomputer is connected with a display screen and an operation region; an air circulation region is arranged inside the shell; the measuring probe is arranged in the air circulation region; a ventilator is arranged in the wind circulation region; the ventilator includes a fan and a motor, wherein the fan faces the measuring probe, and the motor is fixed to the shell and is connected with a ventilator button of the operation region; the air circulation region includes an air inlet and an air outlet; the probe is arranged at the air outlet; the ventilator is arranged at the air inlet; and each of the air inlet and air outlet is provided with a fixing grid plate and dust filter cloth, wherein the dust filter cloth is fixed onto the fixing grid plate. With the indoor humidity measuring instrument adopted, air circulation can be accelerated in measurement, and the accuracy of measurement is ensured.

The invention belongs to the technical field of new energy, and particularly relates to a weather-resistant intelligent lane-changing connection system for a photovoltaic panel cleaning robot. The system comprises a three-point suspension rail structure unit and an intelligent lane-changing connection unit which are not on the same straight line; an electromagnet attraction unit and a power supplysignal docking unit are arranged between the intelligent lane-changing connection unit and a cleaning unit, and an electromagnetic pin lock positioning unit and a signal feedback unit are arranged between the intelligent lane-changing connection unit and a photovoltaic panel. The system has the advantages of being stable in structure, and high in weather resistance and practicability.

The invention discloses an electric sweeper with a self-discharging garbage collecting box having a suction function. A portable electric tricycle serves as a carrier, clean energy is adopted, and the electric sweeper is energy-saving and environment-friendly; a sweeping mode of combining a horn-shaped brush and a rolling brush is adopted, and a sweeping effect is excellent; the garbage collecting box is of a self-discharging structure and is provided with an automatic opening-closing type tail gate, so that the working efficiency is high, and the labor intensity of staff can be greatly alleviated; compared with the prior art in which a relative negative pressure extraction effect is formed in the garbage collecting box due to cyclone formed in a closed rolling brush cabin, the garbage collecting box has the suction function, and is capable of sucking large garbage, small garbage and dust, low in energy consumption and good in sweeping effect. The electric sweeper is particularly applied to road sweeping of workshops, house sectors, residential quarters, institutions, schools, scenic regions and storerooms.

The invention discloses a composite underground corridor fireproof isolation device and method. A composite underground corridor comprises an underground corridor body and a connection passageway. The underground corridor body is communicated with an urban underground quick tunnel through the connection passageway. The two side walls of the connection passageway are provided with a side wall air exhaust passageway body and a side wall air supply passageway body respectively. The side wall air exhaust passageway body comprises an air exhaust shaft. An air exhaust device is arranged in the air exhaust shaft. The side wall air supply passageway body comprises an air supply shaft. An air supply device is arranged in the air supply shaft. The lower end of the air exhaust shaft is communicated with the lower end of the air supply shaft through the connection passageway. Both the upper end of the air exhaust shaft and the upper end of the air supply shaft are communicated with the ground. By means of the composite underground corridor fireproof isolation device and method, smoke mixing in the urban underground quick tunnel or the underground corridor under the fire working condition can be avoided effectively, fire fighting vehicles are not affected when passing through the connection passageway, the fire rescue efficiency and reliability are improved remarkably, and the composite underground corridor fireproof isolation device and method have the advantages of being low in construction cost, convenient to construct, short in cycle, high in benefits, low in maintenance cost and the like.

Disclosed is an operation method of a tunnel maintenance dust-removal trolley in a constant temperature and humidity mode. Top frames are arranged on the upper surfaces of door frames. A temperature-control water tank is arranged on one side in a supporting frame. A high-pressure water pump is arranged on one side of the temperature-control water tank. A hydraulic pump station is arranged on the other side in the supporting frame. A PLC console is arranged on one side of the hydraulic pump station. A hand-held terminal is arranged on the PLC console. The PLC console is provided with a wirelessterminal. Lifting travelling mechanisms are arranged at the two ends of the supporting frame correspondingly. Top formworks are arranged on the top frames of the supporting frame. A pair of side formworks is symmetrically arranged on the two sides of each door frame. The two ends of each top formwork are hinged to the corresponding pair of side formworks though connecting pieces. A side formworkhydraulic cylinder is arranged between each side formwork and the corresponding door frame. Buttress atomizing spraying heads are distributed on the top formworks and the side formworks. Ditch grooveatomizing spraying heads are evenly distributed on the lower surfaces of the side formworks. Ditch groove atomizing spraying heads are distributed at the lower portions of the door frames. Road surface atomizing spraying heads are distributed on the two sides in the door frames. An operator inputs an operation instruction on the hand-held terminal or the wireless terminal, and all parts of the maintenance trolley are controlled to operate precisely through the PLC console.

The invention discloses a photovoltaic power supply based miniature convenient electric sweeper. A convenient electric tricycle serves as a carrier, a plurality of foldable solar panels serve as a vehicle storage battery to charge, and the energy-saving and environment-friendly effect is achieved due to the clean energy; a cleaning mode that a horn-shaped brush is combined with a rolling brush and accordingly the cleaning effect is excellent; a garbage collection can is of a self-discharging structure and is matched with an automatically opened and closed tail door and accordingly the working efficiency is high and the labor intensity of workers can be greatly reduced; the relative negative pressure suction effect is formed in the garbage collection can due to a cyclone which is formed in a relatively-closed rolling brush cabin so as to suck the large and small garbage and dust into the garbage collection can and accordingly the energy consumption is low and the cleaning effect is good; the photovoltaic power supply based miniature convenient electric sweeper is particularly suitable for road cleaning of workshops, workshop areas, residential areas, organs, schools, scenic areas and warehouses.