74results about How to "Impactful" patented technology

The invention discloses a cutting, shifting and blocking preventing device, and belongs to the technical field of agricultural machinery. The cutting, shifting and blocking preventing device comprises a spindle, connecting sleeve plates, inclined plates, a breaking and cutting device and stubble shifting and blocking preventing devices, wherein the breaking and cutting device is mounted in the middle of the spindle, two groups of stubble shifting and blocking preventing devices are symmetrical about the breaking and cutting device and connected to two ends of the spindle, stubble shifting wheels of the stubble shifting and blocking preventing devices and breaking and cutting discs of the breaking and cutting device form deflection angles, and accordingly, the two symmetrical stubble shifting wheels are mounted on two sides of the end part of the breaking and breaking and cutting device in a splayed manner and simultaneously backwards shift stubble and laterally push stubble, straw and weeds; the connecting sleeve plates are symmetrically connected between the breaking and cutting device and the stubble shifting and blocking preventing devices on the spindle and are simultaneously connected with the stubble shifting and blocking preventing devices respectively; and during working, the two connecting sleeve plates are connected with a no-tillage planter for corn ridge culture respectively. The device can cut the stubble, straw and weeds, can shift the stubble, can throw the straw, the stubble and the weeds to the rear side and can push the straw, the stubble and the weeds to furrows on two sides, a clean seed bed is formed on a ridge, blocking is reduced, and the breaking and cutting quality is guaranteed.

The invention relates to a two-body nasal washing device, which comprises a washing liquid bottle, a liquid inlet pipe, a bracket, a liquid outlet one-way valve, a vent hole, an air inlet hole, a liquid outlet pipe, a recovery head, and a liquid return pipe , liquid return one-way valve, recovery bottle; the liquid outlet one-way valve is connected directly above the lotion bottle; one end of the liquid outlet one-way valve is connected with a liquid outlet pipe; the end of the liquid outlet pipe is connected with an outlet liquid head; the liquid return one-way valve is connected directly above the recovery bottle; one end of the liquid return one-way valve is connected to the liquid return pipe; the end of the liquid return pipe is connected to the recovery head; There are air intake holes and ventilation holes. Its advantages are as follows: high user utilization rate, easy to control the flushing pressure of nasal washing liquid by squeezing the washing liquid bottle during use, realizing one-way flow of nasal washing liquid, after cleaning from one nostril, it enters the recovery bottle through the other nostril , The nasal wash liquid can be recycled, reducing the pollution of the nasal wash liquid to the surrounding environment, and the washing speed is controlled by the user's hand, the operation is simple, and the comfort is good.

The invention relates to a pipeline cleaning robot comprising a frame assembly, a running mechanism mounted on the frame assembly and driving the frame assembly to run and a dredging mechanism arranged on the head of the frame assembly. The dredging mechanism comprises a cutter assembly mounted on the head of the frame assembly and a cutting driving device for driving the cutter assembly to rotate, the cutter assembly comprises a cutter shaft and a plurality of sets of cutters in transmission fit to the cutter shaft and arranged in the axial direction of the cutter shaft, each set of cutters comprises two cutters symmetrically distributed with the central radial section of the cutter shaft as the center, and the lengths of all sets of cutters in the radial direction of the cutter shaft aresequentially decreased from the axial center of the cutter shaft to the two ends. According to the pipeline cleaning robot, the lengths of all sets of cutters are gradually changed, the structure satisfies the internal arc structure of a pipeline, spaces cut by the ends of all cutters are different, garbage can be cut in all directions, all cutters cooperate so that the cutters can be effectivelyprevented from being wound by the garbage, and the cutting structure of the cutters is improved by the structure.

The invention discloses a guqin (a plucked seven-string Chinese musical instrument of the zither family), comprising a face plate and a bottom plate. The face plate comprises a first inner plate surface and a first outer plate surface. The first inner plate surface is provided with a dragon pool sound absorber and a phoenix pond sound absorber, and the structures of the dragon pool sound absorber and the phoenix pond sound absorber are the same and are characterized in that, a sound absorber and a connecting block are included, the cross section of the connecting block is in the shape of a trapezoid, the upper bottom surface of the connecting block is connected to the first inner plate surface, and the lower bottom surface of the connecting block is connected to the sound absorber. The bottom plate comprises a second inner plate surface and a second outer plate surface, and the second inner plate surface is laid with a felt layer. The guqin is advantageous in that, through the sound absorber shape and structure in a guqin face plate, a traditional mode is changed, and the effect of effectively increasing sound volume of the guqin can be achieved; the felt layer is added in the bottom plate, so that, in the time that the sound volume of the guqin is increased, tone quality is ensured; and a big breakthrough is made for a traditional guqin, and a guidance meaning in the development process of the guqin is provided.

The invention discloses a display processing method of a spliced screen, and the method comprises the following steps: realizing communication connection with at least one subordinate terminal, and acquiring screen parameter information of the at least one subordinate terminal; according to a set arrangement mode of a screen of a master terminal and the screen of the at least one subordinate terminal, obtaining the spliced screen; determining screen parameter information of the spliced screen according to the screen parameter information of the master terminal and the screen parameter information of the at least one subordinate terminal; processing a to-be-displayed file according to the screen parameter information of the spliced screen, obtaining the processed to-be-displayed file, wherein the processed to-be-displayed file contains a regional part of the processed to-be-displayed file displayed by the master terminal and the regional part of the processed to-be-displayed file displayed by the at least one subordinate terminal. The invention also discloses a device and a computer readable storage medium. By the method, the device and the computer readable storage medium providedby the scheme of the invention, users are helped to check the file, and powerful visual experience is brought for the users.

The invention discloses a steel plate and polyvinyl alcohol cement based composite antiknock board which comprises two polyvinyl alcohol composite fillers, a foamed aluminum filler, two supporting plates, U-shaped-channel steel plates, high-strength bolts and steel cushion blocks. The foamed aluminum filler is arranged between the two polyvinyl alcohol composite fillers; the two supporting plates are inserted in channels of the U-shaped-channel steel plates to form a cavity in a surrounding way; the polyvinyl alcohol composite fillers, with the foamed aluminum filler between them, are arranged in the cavity; the supporting plates and the U-shaped channel steel plates are provided with bolt holes in symmetrical arrangement, and are connected to the polyvinyl alcohol composite fillers through the high-strength bolts; the steel cushion blocks are arranged between the U-shaped-channel steel plates and the high-strength bolts respectively. The steel plate and polyvinyl alcohol cement based composite antiknock board has the advantages of simple structure, light weight, high strength and high capacity of dissipating and absorbing explosion energy. To be specific, as the steel plates are used for making the cavity of the antiknock board, the antiknock board is simple in structure, is light, is not easy to fragment so as to effectively avoid secondary disasters caused by fragments, and accordingly is effectively applicable to buildings having requirements on explosion protection.

The invention discloses an energy-saving environment-friendly bridge pier anti-collision protection device with capability of self-generating to supply power, which comprises inner and outer casings,wherein an anti-collision buffer structure is arranged between the inner and outer casings, and the inner casing and the outer casing are both fixed onto a support substrate, the outer casing is provided with an annular rack and an annular guiding chute around the circumferential direction thereof, the guiding chute is slidably connected with a guiding sliding block, the guiding sliding block is fixed to a moving seat, a stepping motor is fixed to the moving seat, an output shaft of the stepping motor is connected to a gear, and the gear is meshed with the rack; the moving seat is further provided with a distance measuring device, an alarm device and a microprocessor; the supporting substrate is provided with a plurality of pressure transmitting plates distributed around the circumferential direction thereof; pressure sensors are arranged under each pressure transmitting plate, and the pressure sensors, the stepping motor, the distance measuring device and the alarm device are all connected with the microprocessor through signals; the microprocessor is electrically connected with a solar power supply device. The device of the invention can automatically detect the distance of a vehicle body at a certain distance from a pier, and automatically alarms to avoid collision of the vehicle against the pier.

The invention discloses improvement on a bag making machine capable of continuously sealing bags. Primarily, a roll shaft and a rotating shaft are arranged on the bag making machine; the rotating shaft is provided with a sealing knife assembly consisting of a heater, a bracket and a sealing knife; compressed gas is heated by the heater and then is sprayed out by a sealing knife port; continuous sealing can be realized after a thin film passes through the roll shaft; plastic bags of any length can be manufactured; since the hot-gas sealing knife is not directly contacted with the roll shaft and the plastic bag, scratches or stripping of printing ink is not caused on the surface of the plastic bag; and the compressed gas has certain impact force, so that hot gas sprayed out by the sealing knife port can quite firmly seal thicker plastic bags.

The invention relates to an anti-shielding intelligent monitoring device which comprises a main body and a camera, and further comprises an anti-shielding mechanism and two dust removal mechanisms, the anti-shielding mechanism comprises a light sensor, an air suction assembly, a fixing box, a sealing assembly, an air bag, a control assembly, a first spring, two moving plates and two air blowing pipes, and the control assembly comprises a trigger block and a time delay switch; the sealing assembly comprises an air cylinder and two sealing units, each sealing unit comprises a sealing plate, a first bearing, a rotating shaft, a gear, a rack and a hinge rod, and each dust removal mechanism comprises a fixing plate, a connecting rope, a telescopic rod, a second spring and a scraper blade. According to the device, by arranging the anti-shielding mechanism, an object shielding the camera can be blown off, and lawless persons can be prevented from illegal operation by shielding the camera; andthrough the dust removal mechanisms, the function of removing dust from the camera is achieved, and dust is prevented from adhering to the camera, so that the shooting sight of the camera is not blocked.

The invention discloses a sand mold casting core-making process in the technical field of sand core manufacturing, and the process comprises the following specific steps: step 1, uniformly stirring and fully mixing casting sand and an adhesive; step 2, injecting the casting sand mixed in the step 2 into a mold; step 3, starting a compaction device to compact the casting sand in the mold; and step 4, after compaction is completed, taking out a sand core and drying the sand core. A rotating disc is arranged, a bidirectional rack moves up and down to drive the rotating disc to move synchronously, and the rotating disc rotates along an inner threaded pipe while moving up and down, so that a compaction hammer is driven to move up and down and rotate at the same time, the compaction hammer rotates when rising, the falling casting sand is thrown to all positions in the mold, and the thrown casting sand has certain impact force, and the role of compaction is achieved; and the compaction hammer rotates when descending to twist and compact the casting sand falling into the mold, so that on the one hand, the casting sand is compacted, and on the other hand, the periphery of the casting sand is extruded, and it is ensured that the casting sand can fill the corners of the mold.

The invention discloses a pneumatic soil-loosening and fertilizer-applying apparatus and method and belongs to the technical field of garden machines. The pneumatic soil-loosening and fertilizer-applying apparatus comprises fertilizer applying mechanisms and a supporting mechanism, wherein each fertilizer applying mechanism has a linear driver and an air pick; the bottom of a telescopic rod of the linear driver is connected with the upper side of the supporting seat; the air pick is detachably connected with a shock excitation rod; the shock excitation rod section on the lower side of the air pick is provided with an air and liquid inlet block; the shock excitation rod section under the air pick is hollow; the air and liquid inlet block communicates with the hollow section of the shock excitation rod; the upper part of the shock excitation rod is connected to the supporting seat; the shock excitation rod is parallel to the telescopic rod; the bottom side of the shock excitation rod is connected with a soil loosening device; the lowest part of the soil loosening device is tapered; a liquid applying cavity is formed in the soil loosening device; the soil loosening device corresponding to the liquid applying cavity is provided with at least one exhausting and liquid applying hole; and the air and liquid inlet block is provided with an air inlet and a liquid inlet. The supporting mechanism comprises a rack. A supporting arm is fixedly connected to the rack; and each linear driver is fixedly connected to the supporting arm. Soil ventilating property can be improved; and medicine liquid can be evenly applied to plant roots, so plant growth can be facilitated.

The invention discloses a 360-degree fulldome play system. The 360-degree fulldome play system is characterized in that the 360-degree fulldome play system comprises a 360-degree annular curtain and a projection system, a movie watching device is arranged on the middle of the 360-degree annular curtain, the movie watching system comprises a seat and a track used for sliding of the seat, the track is arranged in a water tank, and the water tank is divided into a plurality of special effect areas. According to the invention, the track is arranged in the water tank, so that a user can timely, truly and really experiences various moving feelings in water, and an unusually dynamic wading experience is provided to the user; in addition, the special effect areas are arranged, so that when an audience watches a movie in a 360-degree omnidirectional-stereo penetration cinema, the audience can timely feel strong vibration, fragrance, wind blowing and other environment special effects matching the changes of the movie content.

The invention discloses a gas purification device for chemical laboratory exhaust air pollution treatment, and relates to the technical field of gas purification. The device comprises an exhaust fan which is arranged to suck gas from a laboratory and blow the gas out of the laboratory; an organic gas absorption device which is arranged to selectively absorb the gas blown out by the exhaust fan; aphotolysis waste gas treatment device which arranged to photolyze the gas exhausted by the exhaust pipe and exhaust the photolyzed gas. According to the technical scheme, the gas in a laboratory is continuously fed into the pressure container through the exhaust fan, under the action of certain pressure, volatile organic gas and water vapor are absorbed by the filter shell and then discharged through the discharge pipe communicated with the bottom of the pressure container, and then the unabsorbed volatile gas is subjected to a photolysis catalytic reaction; therefore, a part of volatile organic pollutants are degraded and converted into low-molecular compounds under irradiation of high-energy ultraviolet light beams, and pollution of toxic and harmful gas generated in a laboratory to aircan be effectively reduced.

The invention discloses a cutting device for broad beans. The cutting device comprises a rack, wherein an intermittent mechanism, a transport mechanism and a tool are arranged on the rack; the intermittent mechanism comprises a power motor, a stressed plate, a support table and a push rod, and a cam is arranged on the power motor; a first pressure spring is arranged between the stressed plate and the support table; one end of the push rod penetrates through the support table and is fixedly connected with the stressed plate, an air-inflation pocket is formed in the other end of the push rod, and the air-inflation pocket communicates with a steel pipe; the transport mechanism comprises a transport pipe and a movable plate, one end of the transport pipe is slidably connected with the steel pipe, a rubber sleeve is arranged in the other end of the transport pipe, and a charge channel is formed in the sidewall of the transport pipe; the movable plate is hinged to the inner wall of the transport pipe, and a second pressure spring is arranged between the movable plate and the inner wall of the transport pipe; a plurality of through holes are further formed in the outer wall of the transport pipe, and a circular shaft is arranged on each through hole; and a heating resistor is arranged in each circular shaft, and a plurality of heat dissipation holes are further formed in the circular shaft. The scheme mainly solves the problems of low efficiency and high possibility of causing hand injury due to cutting, of a traditional cutting process for broad beans.

The invention relates to the technical field of petroleum delivery, in particular to a turbine type petroleum pipeline. The petroleum pipeline comprises an outer pipe and an inner pipe; the inner pipeis located in the outer pipe; the outer pipe and the inner pipe are arranged concentrically; the outer surface of the inner pipe is connected with the outer pipe through a plurality of rib plates; acavity is formed between every two adjacent rib plates; a turbine blade mechanism is mounted in the inner pipe and is used for increasing the flowability of petroleum in the inner pipe; a baffle mechanism is connected with the inner pipe and is used for adjusting the diameter of the inner pipe, so that the flow speed of the petroleum in the inner pipe is adjusted, and petroleum delivery is facilitated. The turbine type petroleum pipeline has the advantage of capability of facilitating petroleum transportation.

A method of photoresist strip includes providing a semiconductor substrate and performing an immerse step and a strip step, wherein the semiconductor substrate comprises a base, a bonding pad, a protective layer, an under bump metallurgy layer, a patterned photoresist layer and a bump. The patterned photoresist layer covers the under bump metallurgy layer and a lateral surface of the bump, wherein a first connection interface is formed between the patterned photoresist layer and the lateral surface of the bump, and a second connection interface is formed between the patterned photoresist layer and the under bump metallurgy layer. In the immerse step, the patterned photoresist layer contacts with a chemical solution which degrades the bond strength of the first connection interface. Therefore, in the strip step, the semiconductor substrate is scoured by a flow with appropriate force of impact, which strips the patterned photoresist layer from the base. In this way, the immerse time of the substrate in the chemical solution is greatly reduced, and the use amount of the chemical solution is reduced. Moreover, the immerse time in the chemical solution is short, so the structure of the semiconductor substrate will not be affected, and the production yield can be greatly improved.

The invention relates to a soaking device for tea detection, which comprises a base and a reflux tank mounted on the base, a soaking tank is mounted on the inner side of the reflux tank, and a liquid outlet disc is mounted at the bottom of the inner side of the soaking tank; the device further comprises a soaking basket, a second connecting frame is hinged to the soaking basket, a bearing plate is fixed to the end, away from the soaking basket, of the second connecting frame, and the bearing plate is rotationally installed in a bearing ring connected with the base through a lifting assembly. The second connecting frame is sleeved with a connecting sleeve in sliding fit with the second connecting frame, the connecting sleeve is hinged to the soaking basket through a first connecting rod hinged to the connecting sleeve, and the connecting sleeve is further connected with a driving mechanism installed on the bearing plate through a reciprocating transmission assembly. And when the soaking basket swings back and forth, the soaking basket can extrude the detection solution in the soaking tank, so that water enters the soaking basket through the bottom of the soaking basket, certain impact force is achieved, the soaking effect is further improved, and the practicability is high.

The invention discloses a solar photovoltaic panel efficient cleaning device. The solar photovoltaic panel efficient cleaning device comprises a frame, a transmission mechanism is installed on the frame, a support is installed on the transmission mechanism, an air cylinder, a sweeping assembly, a water spraying assembly, a dust removal assembly and a wiping assembly are installed on the support, the air cylinder is installed at one end of the top of the support, one end of a piston rod of the air cylinder is installed on the sweeping assembly, the sweeping assembly is installed at the top of the support, and the water spraying assembly is installed on the sweeping assembly. The transmission mechanism can drive the support to move front and back, so that the purpose of driving the sweeping assembly, the water spraying assembly, the dust removal assembly and the wiping assembly to move front and back is achieved, the dust removal assembly can remove dust on a solar photovoltaic panel, the sweeping assembly cooperates with the water spraying assembly to clean away bird droppings and plant juice left on the solar photovoltaic panel, the wiping assembly can wipe away cleaning water sprayed out by the water spraying assembly, and soil and dust are prevented from adhering to the solar photovoltaic panel again.

The invention discloses an anti-blocking aeration device for sewage treatment. The aeration device comprises an aeration chamber, a motor, a rotating shaft, aeration tubes and brushing mechanisms; themotor is arranged at the middle position of the upper end of the aeration chamber, the output end of the motor is fixedly connected with the rotating shaft, the rotating shaft goes through the uppercover plate of the aeration chamber, extends into the aeration chamber and is fixedly connected with the upper end of a crankshaft, and the lower end of the crankshaft is rotatably connected to the bottom of the aeration chamber; the aeration tubes are symmetrically mounted at the inner lower end of the aeration chamber, and aeration heads are symmetrically mounted at the upper end and the lower end of every aeration tube; and the brushing mechanisms are arranged at the outer sides of the aeration tubes. The device has a novel design, the downwardly arranged aeration heads deliver a gas, and the gas has a moving impact force, so the sewage at the bottom of the aeration chamber can be thoroughly aerated; the aeration heads are brushed with brush hair in the reciprocating movement process ofcleaning brushes on the aeration tubes to prevent generated floc from blocking the aeration heads and affecting the aeration effect; and the device also has a strong practicability, and is worth promoting.

The invention discloses efficient combustion-supporting household garbage treatment equipment. The equipment comprises a main body, a coal bucket, a chain grate stoker and ventilation openings, wherein the coal bucket is connected to the upper portion of the main body, the chain grate stoker is arranged in the middle of the main body, the ventilation openings are connected to the two sides of the main body, the ventilation openings are connected to suction shafts by means of embedding grooves in one sides of open grooves, the suction shafts are connected in through shafts at one sides of abutting discs by means of middle piston discs in an attached penetrating manner, and the upper ends and the lower ends of the ventilation openings are connected to transmission shafts by means of protruding portions of deflection grooves. According to the equipment, external airflow can be actively sucked in by means of the suction shafts when the chain grate stoker is used for conveying and combusting garbage, such that the airflow has high impact force when flowing in, so as to well blow flame generated during garbage combustion for flame retardance, and incineration is more efficient.

The invention discloses an air-flow vehicle wiper, and belongs to a vehicle wiper. An arm shaft is arranged in the position of the wiper of an automobile, an upper scraping arm and a lower scraping arm are installed on the arm shaft, and the upper scraping arm and the lower scraping arm are hollow inside; gas spraying heads are arranged on the middle part and top end of the lower surface of the lower scraping arm correspondingly, a plurality of double pipes clamping grooves and a single pipe clamping groove are formed in the upper and lower scraping arms, a plurality of nozzles are formed on the gas spraying heads, and each nozzle and the end faces of the gas spraying heads have different angles; however, all the nozzles are on a same plane, high pressure gas is transmitted to the nozzlesthrough the installation of a first gas transmission pipeline and a second gas transmission pipeline, so that the gas coming out of the nozzles has certain impact force. Through the principle, water on a front windshield of the automobile is "scraped" away by high pressure airflow, the wiper is not in direct contact with the front windshield directly, so that the problems such as the hidden dangerof safety caused by the aging of the wiper and scratches on the front windshield are effectively solved.

The invention belongs to the technical field of pavement construction, and discloses a warning device for pavement construction. The device comprises a mounting frame assembly, a board assembly is arranged on the inner side of the mounting frame assembly, a cleaning assembly is arranged on the side, close to the board assembly, of the interior of the mounting frame assembly, two supporting frame assemblies are symmetrically arranged on the bottom side of the mounting frame assembly, the mounting frame assembly comprises a positioning mounting frame, and connecting frames are fixedly mounted at the two ends of the bottom side of the positioning mounting frame; a connecting base is fixedly installed on the inner sides of the connecting frames, a positioning sliding groove is formed in the side face of the positioning mounting frame, a limiting sliding groove is formed in the surface of the bottom side of the positioning mounting frame, and a guide rod is fixedly installed on the inner side of the limiting sliding groove. According to the warning device, the height position of the warning board can be adjusted, dust and impurities on the surface of the warning board can be conveniently and rapidly cleaned, the warning device can be folded and stored, the size of the stored and folded warning device is reduced, and the warning device can be conveniently stacked, transported and carried.

The invention relates to an equipartition mechanism and a glue removing device, the equipartition mechanism and the glue removing device are used for dispersing silicon wafers, and the equipartition mechanism comprises a spraying pipe and a second liquid pump. And a plurality of spraying holes which are uniformly distributed at intervals are formed in the spraying pipe in the length direction. And the second liquid pump is connected with the spraying pipe through a pipeline, can convey liquid into the spraying pipe and enables the liquid to be sprayed from the spraying holes to the adjacent silicon wafers. When the liquid is sprayed out from the spraying holes, certain impact force is generated, and when the liquid is sprayed into gaps between the adjacent silicon wafers, the silicon wafers which are originally tightly attached together can be scattered. And the spraying holes are uniformly distributed on the spraying pipe, so that the gaps among different silicon wafers are impacted by the same liquid, and new gaps among the different silicon wafers are also the same, namely, the silicon wafers are uniformly dispersed under the impact of the liquid.

The invention provides a cooking equipment, comprising an equipment body; an inner pot is set in the equipment body; a spray device sprays water into the inner pot through the mouth of the inner pot when the spray device is working; a foam detector used to detect the foam in the inner pot rising to the preset position releases the anti-overflow signal; a controller connected to a timer, the spraydevice and the foam detector is used to start the spray device when the anti-overflow signal is received, and continues to detect the anti-overflow signal after the spray device is started, and startsthe timer with the anti-overflow signal undetected; the timer is used to detect the delay time of the foam detector and triggers the controller to control the spray device to shut down when the delaytime reaches preset time. The cooking equipment provided in this scheme sets the spray device to delay spraying water into the inner pot for effectively breaking the bubbles and avoiding the foam backwash, and realizes the anti-overflow function of the cooking equipment, and reduces the water loss in the inner pot to ensure the cooking taste.

The invention provides a detector for detecting powder pipeline blockage. The detector comprises a bottom board and an electrical box. One end of the bottom board is fixedly equipped with a protection plate, and the other end is fixedly equipped with a closed dustproof housing; a contact switch is arranged on the bottom board in the dustproof housing; the electrical box is internally provided with a power supply and an alarm device; the contact switch is sequentially connected with the power supply and the alarm device in series to form a working circuit; the dustproof housing is externally provided with a floating plate; one end of the floating plate is connected with a hanger lug through a rotating shaft, and the other end of the floating plate is fixedly provided with a firing pin; the tail end of the firing pin passes through the dustproof housing and is arranged right under the contact switch; and when the floating plate rotates around the rotating shaft, the firing pin is allowed to be close to or far away from the contact switch. The detector is arranged on the inner upper portion of a pipeline; when the pipeline is blocked, the firing pin presses the contact switch to make the working circuit be connected, and an alarm is given; and the detector is high in detection accuracy, reliable and safe and low in cost.

The invention relates to the technical field of pumps, in particular to an industrial sewage pump which comprises a motor, a transmission gear, a connecting ring, side scraping plates, a side feedingport, a first side scraper, a second side scraper, a rotating ring, movable cutters and a bottom feeding port. The motor drives the transmission gear to rotate so as to drive a gear ring and the connecting ring to rotate; the connecting ring rotates to drive the at least two side scraping plates to rotate, the side scraping plates rotate to scrape impurities attached to the side feeding port, theside feeding port is prevented from being blocked, the first side scraper can cut the impurities, the added second side scraper improves the cutting effect, and therefore the preliminary cutting function of the side feeding port is achieved; and the side scraping plates rotate to drive the rotating ring to rotate at the same time, a side T-shaped groove formed in a cam line rotates along with therotating ring, and the movable cutters at different positions can be driven to do telescopic motion, so that the movable cutters are used for cutting impurities entering from the bottom feeding port,and the primary cutting function of the bottom feeding port is achieved.

The invention belongs to the technical field of automobile fittings, and particularly relates to an automobile adsorptive type oil filter. The oil filter includes a shell, a guide pipe, a filter element, a base, a motor, a stand column, a gear and a gear ring. The upper surface of the guide pipe is vertically provided with an oil in channel in the axial direction, the outer surface of the portion,in the shell, of the guide pipe is provided with an oil through hole, and the guide pipe is vertically provided with a spiral sheet in the oil in channel. The filter element is of an annular structure and used for filtering oil flowing out from the oil through hole. The base is located in the shell, and the lower end of the guide pipe is rotatably installed on the base through a bearing. The lower end of the stand column is fixed on the base, and the upper end of the stand column is located in a T-shaped annular groove of the shell through a T-shaped block to achieve connection of the stand column and the shell. The gear is horizontally and fixedly installed on the guide pipe and located above the filter element. The gear ring is fixedly installed on the stand column, and the gear is located in the gear ring and fully meshed with the gear ring circumferentially. The oil fiter can remove scrap iron impurities in oil and the filtering effect is better.

The invention discloses a backwashing filter, which comprises a device shell, a filtering chamber, a rinsing chamber and rinsing assemblies, wherein the top portion and the bottom portion of the filtering chamber are respectively connected to a water inlet and a water outlet, a filtering screen is arranged inside the filtering chamber, sliding grooves are arranged inside the rinsing chamber, a stretching rod is connected in the rinsing chamber, one end of the stretching rod is connected to a rinsing head, both sides of the rinsing head are connected to sliding blocks, the other end of the rinsing head is fixedly connected to a spraying nozzle, the rinsing head is connected to a rinsing pipeline, the rinsing pipeline is provided with a micro booster pump, the upper portion, close to the filtering screen, of a separation plate is provided with a sewage discharge port, the sewage discharge port is connected to a sewage discharge pipeline, the sewage discharge pipeline is provided with a micro suction pump, and a PLC controller is arranged inside the rinsing chamber. According to the present invention, the backwashing filter has advantages of reciprocating washing, convenient and quickwashing and strong washing force, and is mainly used for backwashing the filtering screen in the filter.

The invention relates to a household intelligent fire extinguishing robot. The household intelligent fire extinguishing robot comprises a water tank, a fixed plate, a cutting mechanism, a clamping mechanism and a driving mechanism. The driving mechanism comprises a motor, a first lead screw and a second lead screw. The clamping mechanism comprises a clamping assembly and a fixing assembly. According to the household intelligent fire extinguishing robot, movement of a movable plate is achieved through the driving mechanism, so that left-right clamping of a workpiece is achieved, meanwhile, an abutting plate moves in the direction of the fixed plate through movement of the movable plate, and therefore up-down fixing and limiting of the workpiece are achieved. Through cooperation of a first limiting block, a second limiting block and a third limiting block, multiple pieces of round steel are cut at the same time, clamping is stable, through a second spring arranged in a connecting groove, elastic clamping of a workpiece is achieved, meanwhile, a certain damping function is achieved, the situation that a tool is damaged due to vibration of the workpiece during machining is effectively prevented, and the use practicability is improved.

The invention provides a road asphalt paving device, and relates to the technical field of road asphalt paving, the road asphalt paving device comprises a roller, the main body of the roller is of a circular tube structure, the inner wall of the roller is also provided with a bidirectional through cavity, the left side and the right side of the roller are fixedly connected with side plates, and the side plates are of circular structures; the two side plates are used for sealing a cavity formed in the roller, and supply pipes are further mounted on the outer sides of the two side plates, so that the problems that the compaction degree depends on the height of the roller when an asphalt pavement is compacted in the prior art, and the height of the roller needs to be repeatedly adjusted to compact the pavement are solved; the cooling pipes and the cooling plates are further arranged on the inner sides of the two blocking rings in an annular array mode, the cooling pipes and the cooling plates are arranged in a staggered mode, the cooling pipes are filled with cooling oil liquid, the cooling plates of copper structures can conduct more efficient heat dissipation operation, and then the purpose of more stable temperature control in the two subareas is achieved.