289results about How to "Increase impact" patented technology

The invention relates to the technical field of planer type milling machines, and discloses a planer type milling machine with an air cooling mechanism, the planer type milling machine comprises a planer type milling machine, the top of the planer type milling machine is provided with a planer type cross beam, the outer wall of the planer type cross beam is slidably connected with a sliding seat, the surface of the sliding seat is provided with a ram, and the outer wall of the ram is fixedly connected with a mounting frame; the top of the mounting frame is fixedly connected with a driving motor; and a circumferential mechanism is arranged at the bottom of the mounting frame. According to the planer type milling machine with the air cooling mechanism, the circumferential mechanism is arranged, so that sprayed air rotationally blows towards a cutting tool bit, the sprayed air rotationally blows around the tool bit, chippings around the tool bit can be effectively helped to be removed, the chippings are pushed outwards through centrifugal force generated by rotating airflow, and the chippings can be effectively removed; by means of the design, it can be guaranteed that a cutting area is kept clean, the cutting efficiency is improved, and the situation that the cutting quality is reduced due to accumulation of the chippings is avoided.

The utility model relates to an ecological seawall structure, which belongs to the technical field of bank protection engineering and comprises a seawall foundation, the seawall foundation comprises a slope top and a slope body, and a retaining wall structure is arranged at the joint of the slope top and the slope body. An arc-shaped wave dissipation ridge is arranged at the position, spaced by a certain distance from the retaining wall structure, of the top end of the slope body, a cushion layer is laid at the position, located between the arc-shaped wave dissipation ridge and the retaining wall structure, of the top end of the slope body, and the cushion layer comprises a dry stone cushion layer and a broken stone cushion layer which are sequentially arranged from top to bottom. A first block stone cushion layer is laid at the position, located on the side, away from the retaining wall structure, of the arc-shaped wave dissipation ridge, of the top end of the slope body, extends to the bottom of the slope body and further extends outwards to be connected with a second horizontal block stone cushion layer, and a first concrete retaining wall is arranged at the joint of the first block stone cushion layer and the second block stone cushion layer. The accropode is laid at the top end of the second block stone cushion layer and located on the outer side of the first concrete retaining wall. The safety of the seawall can be effectively guaranteed, and the stability of the seawall structure is guaranteed.

The invention discloses solid waste treatment equipment for construction engineering construction and a treatment method of the solid waste treatment equipment, and belongs to the field of construction engineering equipment.The solid waste treatment equipment comprises a rack, a smashing box is fixed to the rack, the smashing box communicates with a discharging hopper, a baffle is arranged in the discharging hopper in a sliding mode, and a first air cylinder used for driving the baffle to move is installed on the smashing box; a crushing box is arranged on the rack, a U-shaped frame is arranged in the crushing box, a crushing roller is rotationally arranged in the U-shaped frame through a bearing, a motor for driving the crushing roller to rotate is mounted on the U-shaped frame, a second air cylinder for driving the U-shaped frame to move is mounted on the crushing box, and the cooling mechanism is arranged on the rack and used for cooling the crushing roller. Through the arrangement of the scraping mechanism, before the crushing roller is moved to the position of the spray head for cooling, part of impurities and dust adhering to the surface of the crushing roller can be scraped through contact between the crushing roller and the brush.

The utility model discloses an unmanned aerial vehicle undercarriage, relates to the technical field of unmanned aerial vehicles, and provides the following scheme that the unmanned aerial vehicle undercarriage comprises a connecting plate and a buffer mechanism arranged at the bottom of the connecting plate, the buffer mechanism comprises a working assembly and a buffer assembly, the working assembly comprises a supporting rod, and the outer wall of the connecting plate is fixedly connected with the supporting rod; a hollow column is fixedly connected to the bottom of the supporting rod, a sliding column is slidably connected to the inner wall of the hollow column, the buffering assembly comprises a first spring, the first spring is arranged on the outer wall of the sliding column, a connecting ring is fixedly connected to the bottom end of the sliding column, and a supporting head is fixedly connected to the bottom of the connecting ring. A user descends the equipment for parking, a supporting head can be inserted into the ground, a certain fixing effect is achieved, at the moment, a sliding column can retract into a sliding groove formed in a hollow-out column, the buffering and supporting effect is achieved through a first spring, the impact force of the unmanned aerial vehicle and the ground is reduced, and the internal equipment is prevented from being damaged by vibration.

The invention discloses energy-saving high-pressure cleaning equipment for square and rectangular pipes, and relates to the technical field of high-pressure cleaning, the energy-saving high-pressure cleaning equipment comprises a main body frame, a cleaning module is mounted above the main body frame, a rotational flow collaborative cleaning mechanism is arranged in the cleaning module, and the rotational flow collaborative cleaning mechanism is used for changing a water flow mode to ensure internal and external water flow collaborative high-pressure cleaning; the introduced air conveying bin only surrounds the outmost periphery of the nozzle, air flow flows along spiral water flow on the outmost periphery of the nozzle after being discharged in a vertical flowing mode, through the design, the peripheral water flow obtains additional momentum under the action of wind power, and then the momentum is transmitted to the internal water flow through collision among fluid molecules; according to the process, redistribution of energy is achieved, energy of internal water flow is supplemented, and water flow impact force borne by the peripheral square and rectangular pipes and the internal square and rectangular pipes is more balanced through the effect of wind power on the peripheral water flow and transmission of the energy to the internal water flow.

The invention belongs to the technical field of pipeline cleaning, and particularly relates to a dynamic wall pipeline with a cleaning structure, which comprises an arc-shaped shovel plate, a connecting spring is fixedly mounted on the back surface of the arc-shaped shovel plate, a bag body is fixedly mounted on one side, far away from the arc-shaped shovel plate, of the connecting spring, and a step end is arranged in the middle of the inner arc surface of the bag body. The ends, away from the arc-shaped shovel plates, of the connecting springs are fixedly installed on the surface of the step end. An arc-shaped groove is formed in the side, close to the step end, of the inner arc face of the bag. The arc-shaped shoveling plate usually has certain hardness and sharpness, stubborn dirt and sediments on the inner wall of a pipeline can be powerfully scraped off, hard-shell-shaped scaling, sticky oil dirt or solid particle accumulation can be effectively stripped off from the pipe wall through the scraping plate, the bag body has soft texture and good water absorption, and the bag body is not prone to falling off. The inner wall of the pipeline can be wiped carefully after the scraping plate scrapes most dirt, and residual sewage and small particles can be adsorbed, so that the inner wall of the pipeline is smoother and cleaner.

The invention provides a pulse assembly, a suction valve, an endoscope and an implantation system, and relates to the field of medical instruments.The pulse assembly comprises a communication part provided with a channel, the channel is provided with an inlet, a first outlet and a second outlet, and the inlet is used for being communicated with an instrument tube and / or a sheath tube; the shielding piece is movably arranged on the communicating part, and the shielding piece can intermittently block the first outlet under the movable condition; and the driving part is used for driving the shielding part to move, so that the first outlet is intermittently blocked. Compared with the prior art, the device has the advantages that pulse control over the flow speed of washing liquid is achieved, the stone removing efficiency in the operation process is remarkably improved, meanwhile, different operation requirements can be flexibly met, the operation time is effectively shortened finally, and discomfort and risks of a patient are reduced.

The invention relates to the field of casting, and discloses a production method of green sand as-cast high-plasticity nodular cast iron QT450-18, which comprises the following steps of: preparing pig iron, waste steel and foundry returns according to a certain proportion, and preparing the green sand as-cast high-plasticity nodular cast iron QT450-18 by using auxiliary materials such as a silicon carbide pretreatment agent, a high-temperature graphitization carburant, a rare-earth magnesium silicon iron nodulizer, a silicon barium inoculant and a silicon strontium inoculant. And purity and component stability of molten iron are ensured. In the smelting process, purification and adjustment are carried out through accurate temperature control and segmented addition of auxiliary materials, then spheroidizing is carried out through a pouring method, and the microstructure of a casting is optimized through ladle-to-ladle inoculation and stream inoculation. The final casting has excellent mechanical properties, including tensile strength greater than or equal to 440 MPa, yield strength greater than or equal to 300 MPa, elongation greater than or equal to 16%, and V-shaped notch normal temperature impact absorption energy greater than or equal to 8 J. The method is simple and convenient to operate, high in production efficiency and suitable for large-scale industrial production.

The utility model relates to the technical field of underground diaphragm wall construction, and discloses an underground diaphragm wall I-shaped steel joint scraping and brushing type multifunctional wall brushing device which comprises a joint square cylinder, and a connecting port is formed in the top of the joint square cylinder. By the adoption of the universal joint square cylinder for the rotary drilling machine, mounting and dismounting are fast and convenient, the rotary drilling machine is fast to ascend and descend, the wall brushing frequency is high, rapid wall brushing can be conducted by means of the rotary drilling machine, a drill rod of the rotary drilling machine is large in rigidity, the wall brushing device is high in wall brushing scouring force by means of the rotary drilling machine, and concrete blocks can be forcibly removed when encountering the concrete blocks; the steel wire brush is welded and fixed to the wall brushing cylinder, stability is good, rigidity is large, in addition, the bucket teeth and the steel wire brush conduct scraping and brushing alternately, thoroughness of wall brushing is well guaranteed, the wall brushing effect is good, the mode that the rotary excavating connector square cylinder is fixedly connected with the rotary excavating machine drill rod is adopted, the wall brushing device can be repeatedly used, other equipment is not needed, and the cost is low. And the mechanical input cost is saved for a project.

The utility model relates to an unmanned aerial vehicle undercarriage for crane detection, which comprises a mounting seat, two moving blocks, a moving block buffer mechanism, a retractable mechanism, a support leg and a support leg buffer mechanism, a mounting groove is arranged on one side of the mounting seat close to the ground, the two ends of the mounting groove are respectively connected with the moving blocks in a sliding manner, and the retractable mechanism is connected with the support leg buffer mechanism. A moving block buffer mechanism is mounted on one side, close to each other, of the two moving blocks; mounting plates are arranged on the two sides, in the extending direction of the mounting base, of the moving block, the folding and unfolding mechanisms are mounted on the mounting plates and connected with the supporting legs, and the supporting leg buffering mechanisms are mounted in the supporting legs. Compared with the prior art, the unmanned aerial vehicle landing gear supporting leg has the advantages that the moving block buffering mechanism, the folding and unfolding mechanism and the supporting leg buffering mechanism are matched with other parts, folding and unfolding of the unmanned aerial vehicle landing gear supporting leg and buffering during landing are achieved, impact force can be better absorbed, and the problem that the unmanned aerial vehicle landing gear supporting leg is prone to being damaged due to the fact that the connecting position is weak is solved; and the limiting blocks are matched with the limiting grooves, so that the heights of the supporting legs of the unmanned aerial vehicle are the same.

The invention provides a wet-process phosphoric acid concentrated waste gas recovery device and a process thereof, and relates to the technical field of chemical production, the wet-process phosphoric acid concentrated waste gas recovery device comprises a tower body, a gas inlet allowing waste gas to enter the tower body is formed in the bottom of the tower body, a gas outlet is formed in the top of the tower body, a spraying assembly is arranged in the tower body, and the spraying assembly can spray an arc-shaped water curtain; the tower body is provided with a gas inlet and a gas outlet, the arc-shaped water curtain is located between the gas inlet and the gas outlet and divides the tower body into a gas storage area and a gas exhaust area, the gas storage area is close to the gas inlet, the gas exhaust area is close to the gas outlet, and the arc-shaped water curtain is used for purifying waste gas entering the gas exhaust area from the gas storage area. The device has the effects of increasing the contact area between a water body and waste gas, enhancing the waste gas purification effect, reducing the possibility that the waste gas is directly discharged without being filtered by water flow, and further meeting the environment-friendly requirement.

The utility model relates to the technical field of coffee powder pressing devices, and discloses an impact powder hammer which comprises a main cylinder and a powder pressing plate arranged at the bottom end of the main cylinder, and further comprises an inner cylinder movably inserted in the main cylinder, and a pressing piece is arranged at the top end of the inner cylinder; the impact rod is movably arranged in the inner cylinder, a supporting spring is arranged between the impact rod and the pressing piece, a transverse groove is formed in the impact rod in a penetrating mode, locking rods are arranged at the left end and the right end of the transverse groove, and the two locking rods are opened by an elastic supporting rod mechanism; the lower punching groove is formed in the outer wall of the main cylinder, side rod grooves are further formed in the two sides of the top end of the lower punching groove, and when the two locking rods are opened by the elastic supporting rod mechanism, the two ends of the two locking rods are located in the two side rod grooves respectively; when the impact powder hammer is used, the powder pressing plate stretches into the powder bowl to be pressed on coffee powder, the umbrella-shaped disc is pressed on the edge of the powder bowl, in the downward pressing process, the umbrella-shaped disc and the sleeve can play a role in guiding, uneven powder pressing caused by the fact that the powder pressing plate is pressed obliquely is effectively avoided, and the powder pressing effect is guaranteed.

The invention provides a quality detection device for constructional engineering management, and belongs to the technical field of civil engineering quality inspection.The quality detection device for constructional engineering management comprises a supporting plate, a motor frame and a double-spliced cylinder, two driving rollers are arranged on the surface of a circular inner ring, and a knocking block is movably connected to the end of a telescopic shaft; the lower surface of the circular plate is fixedly connected with a corrugated pipe; one side of the bottom of the corrugated pipe is connected with a spray pipe; the knocking block knocks the drill bit, the impact force of the drill bit is enhanced, water in the water tank is continuously sprayed out through the spraying pipe, powder residues in holes are washed away, powder residues and dust are prevented from splashing, a drawing test is conducted on a building through the upward force of the drill bit, then the internal strength of the building is judged, and through observation of scale marks on transparent glass, the building can be accurately measured. Whether the liquid levels of the two water tanks are in the same scale value is judged, the drill bit has knocking force on the surface of the building, and whether the surface hardness of the building reaches the standard or not and whether peeling or fragile phenomena exist or not are judged.

The invention belongs to the technical field of endocrine urine sampling, and particularly relates to an endocrine metabolism urine sampling device and method. Comprising a workbench and a liquid collecting container, a rotary control distance adjusting unit for adjusting the working height of the liquid collecting container is arranged on the workbench; the rotary control distance adjusting unit comprises a rotary screw rod, and the rotary screw rod is arranged at the top of the workbench; the rotating screw rod is in threaded connection with a rotating square cylinder, the bottom of the rotating square cylinder is provided with an opening, and the end, away from the workbench, of the rotating screw rod is located in the opening of the rotating square cylinder; a rotating base is mounted at the top of the rotating square barrel; by means of the locking swing-stopping mechanism, the situation that urine collides with the inner wall of the liquid collecting container more irregularly to generate more rebound and splashing due to the fact that the liquid collecting container shakes in the urine collecting process is avoided, and therefore the probability that the urine splashes out is reduced, the sample size of collected urine is guaranteed, the situation that the surrounding environment is polluted by the splashed urine is avoided, and the service life of the urine collecting container is prolonged. And the limitation of the device in use is reduced.

The invention discloses a vertical machining center provided with a chip cleaning mechanism, and relates to the technical field of vertical machining centers, the vertical machining center comprises a shell, a vertical machine tool is fixedly connected in the shell, a metal machining table is horizontally and slidably connected to the vertical machine tool, and a rail chip removing mechanism is arranged between the metal machining table and the vertical machine tool; in the process of controlling the metal machining table to horizontally move out a machined metal workpiece, the portal frame can be synchronously driven to drive the air injection box and the spray head to move reversely, cuttings and cutting fluid remaining on the surface of the vertical machine tool are blown away in time, contact between a guide rail on the surface of the vertical machine tool and the cuttings can be effectively reduced, and the service life of the vertical machine tool is prolonged. Therefore, the abrasion degree of the guide rail is reduced, the original precision of the guide rail is kept, the service life of the guide rail is prolonged, the surface of the vertical machine tool can be kept clean, cuttings are prevented from being accumulated on the guide rail, the positioning precision and repeated positioning precision of the vertical machine tool are improved, and the size precision and shape precision of metal machining workpieces are ensured.

The embodiment of the invention provides an aerosol generating product. The aerosol generating product comprises an aerosol generating matrix section and a functional section, at least one air passage is arranged in the aerosol generating matrix section, and the air passage penetrates through at least one of the two opposite ends of the aerosol generating matrix section in the first direction; the functional section is arranged at one end, in the first direction, of the aerosol generation matrix section, the functional section is provided with a supporting section, a cooling section and a filtering section which are sequentially arranged in the first direction, and the supporting section is located between the aerosol generation matrix section and the cooling section. According to the aerosol generation product, the aerosol extraction efficiency is high, the structural strength is high, and the suction experience feeling of a user can be well improved.

The invention relates to the technical field of nozzles, and discloses a combined nozzle of a high-pressure water mist machine, which mainly comprises a fixed column, a movable mechanism and an auxiliary mechanism, a fixed cavity is formed in the center of the upper half part of the fixed column, and a sealing cavity is formed in the center of the lower half part of a nozzle shell; the fixing column is movably connected with the upper half portion of the movable mechanism through the fixing cavity, the spray head shell is movably connected with the lower half portion of the movable mechanism through the sealing cavity, and the movable mechanism is fixedly connected with the auxiliary mechanism. When the combined spray head is not used, a movable rod moves upwards under the action of a vertical spring and pushes an auxiliary mechanism to synchronously move upwards, so that an auxiliary circular plate is attached to a spray head shell, an upper auxiliary plate seals an outlet of a nozzle, the nozzle in the spray head shell is effectively prevented from being exposed outside for a long time, and the probability that dust enters the nozzle to cause blockage is reduced; and the fire extinguishing efficiency is improved.

A Karl Fischer reagent production reaction kettle comprises a reaction kettle body, a reaction kettle cover, an isolation cylinder, an isolation cover, a position control supporting rod, a lifting seat, a rotating seat and a limiting sliding rod, the inner side of the reaction kettle body is connected with the isolation cylinder, the isolation cylinder is provided with a lower positioning plate, the lower positioning plate is connected with the reaction kettle body, and the reaction kettle body is provided with a plurality of lower positioning slots. The lower positioning plate is provided with a plurality of lower positioning insertion rods, the lower positioning insertion rods are matched with the lower positioning insertion grooves and connected with the lower positioning insertion grooves, a lower fixing pipe is arranged at the bottom of the reaction kettle body, a discharging pipe is arranged at the bottom of the isolation cylinder and connected with the interior of the lower fixing pipe, and the exterior of the lower fixing pipe is connected with a lower fixing cover through threads. The lower part of the reaction kettle body is connected with fixed support legs, the upper part of the reaction kettle body is connected with a reaction kettle cover, the reaction kettle cover is provided with an upper fixed plate, the reaction kettle body is provided with a lower fixed plate, and the upper fixed plate is connected with the lower fixed plate.

The utility model provides a Roots vacuum pump sealing structure, which relates to the technical field of vacuum pumps and comprises a mounting pump body, an auxiliary exhaust component mounted in the mounting pump body, and pressure adjusting components mounted at the left end and the right end of the auxiliary exhaust component. Under the cooperation of the auxiliary exhaust assembly and the pressure adjusting assembly, when the exhaust valve plate is damaged and the air tightness detector detects that the exhaust air tightness is reduced, secondary exhaust adjustment is effectively formed through the structure, so that the whole device accurately controls and monitors the exhaust pressure of the vacuum pump, the air tightness is improved, and the service life of the vacuum pump is prolonged. And then the airtightness detector is in close contact with the surfaces of the exhaust communicating pipe plate and the two-way exhaust groove frame through the detection end, the airtightness of the exhaust system can be monitored in real time, it is ensured that no leakage exists, then the top of the exhaust communicating pipe plate communicates with a communicating exhaust pipe, and exhaust gas is guided to a designated exhaust point.

The present invention discloses a control method for soft landing of a valve, and relates to the field of valve control technology. The control method comprises: obtaining the stroke of the valve core of the valve, and determining the range of the soft landing intervals of the open side and the closed side of the stroke respectively; obtaining the target position of the valve core, and judging whether the target position is within the soft landing interval; if so, obtaining the state of the valve core, and judging whether the state of the valve core meets the conditions for opening the soft landing control; if so, performing soft landing control on the movement of the valve core. The control method for soft landing of the valve can perform soft landing control on the valve core, thereby avoiding the impact of the valve core on the valve body and extending the service life of the valve.

The application discloses a kind of automatic cleaning device for shield machine cutter, it is related to tunneling equipment technical field, including including shield machine main body and cutter head body, the cutter head body is arranged on the surface of shield machine main body, the side annular array of shield machine main body is close to cutter head body and is provided with several water pipe grooves, the inside of water pipe groove is all fixedly connected with water outlet cavity, the inside of shield machine main body is located on the side of water outlet cavity away from cutter head body and is provided with annular water storage chamber, the annular water storage chamber is used to store water.The application can flush cutter and cutter head in real time when shield machine is normally tunneling, just remove in time when sundries is just attached, block mud cake formation and muck jam from source, continuously keep the surface of cutter clean, avoid cutter jam and eccentric wear problem from root.

The utility model relates to the technical field of derusting equipment, and discloses a derusting device for an automobile die, which comprises a box body, supporting columns are fixedly mounted at four corners of the bottom of the box body, a liquid inlet pipe is fixedly mounted on the right side of the box body, a door A is arranged on the front side of the box body, and a derusting mechanism is arranged in the box body. A fixing mechanism is arranged in the box body, a lifting plate ascends and descends to drive spray heads to extend into the inner side of a mold, a motor A is started to enable a gear A to rotate, a conveying sleeve is meshed with the gear A to drive the conveying sleeve to rotate, the two spray heads rotate, rust removal liquid flows to drive an impeller to rotate, and a rotating shaft A rotates to drive a scraping plate to rotate to scrape a filtering plate; the filtered rust removal liquid is sprayed out through the rotating spray head, the impact force between the rust removal liquid and the inner wall of the mold is improved, the rust removal effect is improved, the rust removal liquid in the box body is driven to flow, the rust removal effect is better, the mold is fixed through the two clamping plates, and deviation cannot occur during rust removal work.

The present invention provides an automatic flushing device for drainage pipes, and relates to the technical field of drainage pipe flushing equipment. The automatic flushing device based on drainage pipes includes a frame and a hinge, wherein a plurality of hinges are fixedly connected to the upper part of the interior of the frame, a water retaining plate is rotatably connected to the interior of the frame through a plurality of hinges, a buoyancy box is fixedly connected to the lower part of one side of the water retaining plate, a float linkage mechanism is arranged at both ends of the upper part of the frame, a bottom cavity is opened at the lower part of the interior of both sides of the frame, and a bottom limiting mechanism is arranged inside the two bottom cavities. The hinge of the water retaining plate of the present invention is arranged above the frame, and the water retaining plate is provided with a buoyancy box, and the water retaining plate can be stably rotated upward by utilizing the impact force and buoyancy of the water flow, and the top limiting mechanism can be used to ensure that the water retaining plate is stable in the upper position, and greater potential energy can be accumulated without hindering the water flow, thereby increasing the impact force when closing the door, ensuring the stability of closing the door, and improving the practicality of the present invention.

The utility model discloses a construction site electromechanical assembly type pipeline auxiliary transportation device which comprises an adjusting plate and a fixing plate, the adjusting plate and the fixing plate are oppositely arranged, and a clamping groove used for being clamped and matched with an unloading plate of an external truck hopper is formed between the adjusting plate and the fixing plate. A pressing plate is connected between the top of the adjusting plate and the top of the fixing plate, the inner wall face of the pressing plate is a pressing face used for being matched with the end face of an external unloading plate in an abutting mode, and a connecting piece used for enabling the clamping groove to be stably connected with the external unloading plate is arranged on the fixing plate. The adjusting plate is provided with an abutting joint used for being in abutting fit with the local outer wall of an external assembly type pipeline, the abutting joint is movably arranged on the adjusting plate in the height direction of the adjusting plate, and the adjusting plate is provided with a fixing piece used for fixing the abutting joint. The utility model solves the problem that the pipeline is easy to move in the transportation process in the prior art.

The invention relates to the technical field of metal part cleaning devices, and discloses automobile part deoiling equipment which comprises a supporting frame, a cleaning pool is arranged at the top of the supporting frame, an integrated pipeline is arranged on one side of the cleaning pool in a penetrating mode, a collecting box is arranged on one side of the bottom of the supporting frame, the integrated pipeline communicates with the collecting box, and a switch valve is arranged on one side of the collecting box. A lifting plate is slidably arranged on one side of the cleaning pool, and a placement table is arranged at the bottom of one side of the cleaning pool; multiple groups of flushing nozzles are arranged on the inner wall of the cleaning pool, and a cleaning assembly is arranged in the cleaning pool; a screening assembly is arranged at the bottom of the cleaning assembly. The cleaning assembly is used for placing and cleaning automobile parts; and the screening assembly is used for separating the cleaned oil-water mixture from solid impurities. Compared with the prior art, the cleaning efficiency can be effectively improved, the situation that the clamped position cannot be cleaned is avoided, the follow-up waste liquid treatment amount is reduced, and therefore the double effects of cleaning and environment protection are achieved.

The invention belongs to the technical field of well drilling equipment, and discloses a thick-wall windowing milling cone which is used for windowing operation of old well casings. The thick-wall windowing milling cone is configured to extend into the casing pipe and windowing the side wall of the casing pipe. The thick-wall windowing milling cone comprises a connector, a drill bit and an eccentric drill bit. Wherein one end of the joint is connected to the driving mechanism; the drill bit is fixedly connected to the end, away from the driving mechanism, of the connector and is configured to cut and mill the side wall of the sleeve. The eccentric bit is eccentrically arranged on the outer end face of the body bit away from the connector. The eccentric drill bit is matched with the main drill bit, and after the eccentric drill bit breaks through the sleeve, due to the eccentric arrangement of the eccentric drill bit relative to the main drill bit, the amplitude of the main drill bit can be improved under the action of rotation and self gravity, so that the impact force of the main drill bit is indirectly improved, and the main drill bit can finish window opening operation more quickly.

The present invention belongs to the technical field of aviation machinery manufacturing, and discloses an explosive impact ball extrusion integrated bushing, comprising: a press-fit bushing, which is inserted into a hole to be strengthened of a substrate; an intermediate sleeve, which is sleeved on the press-fit bushing and abuts against the substrate; an inner cavity of the intermediate sleeve is filled with an impact ball that is movably arranged, and the kinetic energy of the impact ball is transmitted to the press-fit bushing through impact; an explosion tube, which is detachably connected to the top of the intermediate sleeve, and an explosion assembly and a detonation assembly are arranged in the explosion tube, and the detonation assembly is arranged corresponding to the explosion assembly to control the detonation of the explosion assembly. The present invention has a simple structure and is easy to use. It can perform cold extrusion on fasteners that are not easy to move and fasteners with high hardness, reduce the cost of the cold extrusion process, improve the versatility of the cold extrusion process, reduce the problems caused by the stress concentration phenomenon at the fastener holes of aircraft, and extend the fatigue life of the aircraft.

The utility model discloses a filter device of circulating backwash, including filter casing, install a set of bearing seat in the inner chamber of filter casing upper end, bearing seat is sealed with a set of filter core rotation connection, and the rotation action can be realized to filter core through drive assembly, and cooperate transmission assembly and drive cleaning brush rotation, the utility model centrifugal force throws out high -speed water flow, and the impact force of impurity is greatly promoted, and the mechanical cleaning of cooperation cleaning brush, under double effect, can more efficiently remove strong viscosity, firmly attached contaminant and deep pore small impurity, and backwash efficiency improves obviously, and high -efficient backwash reduces backwash frequency and time, and water flow energy consumption is reduced, simultaneously, the filter core is because clean thoroughly, and the service life is extended, and the frequency of replacement is reduced, and the overall operation cost is reduced.

The utility model discloses a prestressed hollow square pile anti-pulling structure which comprises a concrete column, an anti-pulling structure and a connecting structure, the anti-pulling structure is arranged on the concrete column, the connecting structure is arranged on the concrete column, and the anti-pulling structure comprises thickened steel bars, an anti-impact seat, an impact head, a friction groove and ribs. The thickened steel bar is arranged in the concrete column, the anti-impact seat is fixedly arranged in the concrete column, the impact head is fixedly arranged on the anti-impact seat, the friction groove is fixedly formed in the concrete column, and the rib is arranged in the friction groove. The utility model belongs to the technical field of square pile equipment, particularly relates to an anti-pulling structure of a prestressed hollow square pile, and effectively solves the problems that the anti-pulling effect is poor due to the fact that most of the outer surfaces of the anti-pulling structure of the prestressed hollow square pile are smooth, internal steel bars are thin, concrete is prone to being stressed greatly and fractured, and when the bottom is impacted downwards, the anti-pulling effect is poor. And the square pile is easy to damage.

The utility model discloses watering equipment for building construction, which relates to the field of tools for building construction, and comprises a base, the inner wall of the base is fixedly connected with a first positioning rod, the outer wall of the first positioning rod is fixedly connected with a pulley, and the upper end of the base is fixedly connected with a second positioning rod. The air outlet pipe is arranged to fix the second plug sleeve in a threaded mode, when the device is used and the air outlet pipe and the second plug sleeve are arranged, internal air can be exhausted conveniently when water is injected into the device, usability of the device is improved, the cover plate is arranged to move the floating rod, and when the device is used, the floating rod can be fixed conveniently. The water injection position of the water storage tank can be observed conveniently through the arrangement of the floating rod, the baffle is clamped and fixed through the arrangement of the connecting frame, and when the device is used, the arrangement of the connecting frame and the baffle facilitates the prevention of impact force on internal water during movement of the device, the water storage tank is divided into multiple layers, and the impact force is reduced.