4857results about How to "Easy to disassemble and replace" patented technology

The invention discloses grinding equipment and a grinding method for nitrogen spring machining, and relates to the technical field of nitrogen spring machining. The grinding equipment for nitrogen spring machining comprises an inner frame body, an outer frame body, an outer grinding device arranged on the axial side of the outer frame body, an inner grinding device arranged on the side, close to the outer grinding device, of the outer frame body, and a moving device used for driving the inner frame body, the outer frame body, the outer grinding device and the inner grinding device to move. The outer grinding device comprises outer grinding blocks, the outer grinding blocks are arranged in an annular array in the circumferential direction of the inner frame body, and the inner grinding device comprises inner grinding blocks. The multiple outer grinding blocks and the multiple inner grinding blocks can be fused on the same device, reciprocating rough grinding, fine grinding and polishing can be sequentially conducted according to grinding parts and requirements, the use effect is good, the device is suitable for grinding of cylinder bodies or plunger rods with different radiuses, the device adaptability is high, the inner grinding blocks can be conveniently detached, replaced or maintained, the structure is simple, and the practicability is high. The operation is convenient.

The invention provides a horizontal sliding bearing test bed, which belongs to the field of sliding bearing safety operation and detection and comprises a main transmission system, a driving system, a radial loading system, a heating system and a hydraulic system. A sliding bearing seat in the radial loading system is inversely fixed on a lower loading plate and is detachably sleeved and fixed on a test bearing, and a test bed applies pressure to the lower loading plate through a hydraulic cylinder to apply radial load to a test sliding bearing. A rotary swing hydraulic oil cylinder in the main transmission system provides power to test the horizontal sliding bearing. The hydraulic system is connected with the rotary swing hydraulic oil cylinder and the radial loading oil cylinder and can achieve closed-loop control over torque and radial loading force. The heating system simulates a high-temperature working condition through a heating box, and a test bearing can be set to be tested at a specific high temperature. According to the invention, large load detection can be realized, working condition simulation is accurate, data such as bearing working torque and service life can be detected, and comprehensive and multi-size adaptability is realized.

The utility model discloses a multi-station tapping device suitable for hardware machining, which belongs to the technical field of hardware machining and comprises a workbench, a supporting beam is arranged at the upper end of the workbench, a hydraulic cylinder is arranged at the lower end of the supporting beam, the hydraulic cylinder is connected with the supporting beam through a moving mechanism, and a connecting plate is arranged at the lower end of the hydraulic cylinder. By arranging the clamping assembly, a plurality of workpieces are placed in the fixing cylinder, the rotating rod is rotated, the rotating rod drives the worm to rotate, the worm rotates to drive the threaded cylinder to rotate through the worm gear, the threaded cylinder rotates to enable the screw to move, and therefore the workpieces can be clamped in the threaded cylinder. The threaded rod moves to move the abutting rod, the abutting rod moves to abut against and fix the workpieces in the fixing cylinder, the workpieces in the fixing cylinder can be loosened by reversely rotating the rotating rod, and the multiple workpieces can be conveniently and rapidly fixed or loosened by arranging the clamping assembly.

The invention relates to the field of food inspection and detection, and discloses a centrifugal separator for food inspection and detection, the centrifugal separator comprises a cover plate, a rotating column is rotatably connected to the interior of the cover plate through a rotating shaft, a U-shaped frame is fixedly connected to the bottom of the rotating column, and a crushing roller is rotatably connected to the interior of the rotating column and located on the inner side of the U-shaped frame through a rotating shaft; a driving motor is fixedly connected to the position, located on the left side of the rotating column, of the upper surface of the cover plate, and a first gear is fixedly connected to the outer side wall of an output shaft of the driving motor; a U-shaped frame is tightly attached to a filter cylinder through two abutting strips under extrusion of a first spring, so that when the U-shaped frame rotates, the U-shaped frame can rotate along with the filter cylinder, then food can be centrifugally separated and filtered, crushing rollers rotating in the direction can crush the food, meanwhile, the filter cylinder is hung on a baffle ring in a separation cylinder through a baffle ring, and the food can be conveniently separated and filtered. And disassembly and replacement are convenient.

The utility model discloses an adjustable large-span steel drilling tool, relates to the technical field of steel drilling, and aims to solve the technical problems that the front-back position of current steel is inconvenient to adjust, and dislocation drilling work is affected. The adjustable large-span steel drilling tool comprises a base, and a drilling mechanism and a conveying mechanism are fixedly arranged on the upper surface of the base; clamping assemblies are fixedly arranged on a front frame and a rear frame of the conveying mechanism respectively, clamping pieces are installed on the faces, close to each other, of the two clamping assemblies respectively, and a plurality of guiding pieces are fixedly arranged on the upper surface of a conveying belt of the conveying mechanism. The clamping assemblies and the clamping pieces are matched to clamp and fix the position of the steel, the position can be kept stable when the drilling mechanism drills the steel conveniently, deviation is prevented, and meanwhile the clamping assembly structures on the two sides are arranged so that the steel can be pushed forwards and backwards to move conveniently. The drilling machine has the advantages that the position of steel is flexibly adjusted, and drilling work at different positions is facilitated.

The utility model relates to the technical field of expansion joint production, in particular to a precise impact-resistant punching device for expansion joints, which comprises a mounting plate, mounting openings are formed in the left side and the right side of the top of the mounting plate, and inner cavities of the left mounting opening and the right mounting opening are fixedly connected with a driving motor and a supporting sliding rod respectively. The surfaces of the driving lead screw and the supporting sliding rod are movably sleeved with a discharging mechanism. The die moves forwards to the forefront, a second electric push rod is controlled to push a clamping plate to position the four edges of the steel plate, the steel plate on the lower die moves backwards to the rearmost side, a hydraulic push rod works to push a stamping die to conduct stamping machining on the steel plate, and a first electric push rod pushes a material pushing plate to push out the steel plate. The steel plates incline backwards and fall into the material collecting box to be collected, in this way, the automatic discharging function can be achieved, manual material taking by workers is not needed, the labor intensity of the workers is relieved, meanwhile, the workers do not need to place materials below the stamping die, and the feeding process is safer.

The utility model discloses an evanescent mode coating spraying device, which relates to the technical field of evanescent mode spraying and comprises a base, a storage box, a booster pump, a pressure tank and a spray gun pipe, the storage box, the booster pump, the pressure tank and the spray gun pipe are arranged at the upper end of the base, a gear motor is mounted on a top box cover of the storage box, and an output shaft of the gear motor is movably connected with a rotating rod and a stirring paddle. The storage box is communicated with the booster pump through a feeding pipe, a filtering device is arranged at the feeding pipe, the booster pump is communicated with the pressure tank through a conveying pipe, the pressure tank is communicated with the spray gun pipe through a telescopic hose, and the discharging end of the spray gun pipe is in threaded connection with the atomizing nozzle. According to the evanescent mode coating spraying device, the coating can be continuously stirred to prevent precipitation, the sucked-out coating can be filtered, the booster pump is matched with the pressure tank to enable the coating to be pressurized, atomized through the atomizing nozzle and sprayed out, the coating is sprayed more evenly, the effect is better, and the spraying efficiency is improved.

The invention belongs to the technical field of power connectors, and discloses a combined power connector which comprises a plug shell and a socket board, a socket connector is fixedly connected to the middle of the socket board, and a conductive assembly used for being communicated with the socket connector is installed in the plug shell. The two swing rods swing rightwards through the grip, so that the openings of the locking rods and the swing rods are aligned with the first L-shaped rods, then the plug connector is inserted into the socket connector, and the grip is swung leftwards, so that the contact sliding of the two locking rods and the two first L-shaped rods automatically drives the plug shell to move leftwards; the plug connector and the socket connector are connected more easily, after the two swing rods are perpendicular, the connection stability of the plug connector and the socket connector is guaranteed, meanwhile, a second T-shaped rod automatically moves downwards through the elastic tension of a tension spring and is inserted into a limiting groove, the two swing rods cannot continue to swing, and therefore the plug connector and the socket connector can be connected more easily. Therefore, the socket connector and the plug connector are locked.

The invention discloses a soil pesticide residue degradation treatment device, and relates to the field of soil treatment, the soil pesticide residue degradation treatment device comprises: a mobile frame, the mobile frame is provided with a placing area and an accommodating cavity; the lifting mechanism comprises a lifting seat and an electric cylinder connected with the lifting seat; the multiple soil loosening and pesticide spraying mechanisms are rotationally installed at the bottom of the lifting base side by side, each soil loosening and pesticide spraying mechanism comprises a rotating disc, a pesticide spraying pipe is fixedly embedded in the middle of each rotating disc, a rotating connector is connected to the top end of each pesticide spraying pipe, and four plate bases surround the pesticide spraying pipes; a plurality of soil loosening assemblies are installed on the side, away from the pesticide spraying pipe, of the plate base from top to bottom at equal intervals. Hardened soil is subjected to crushing and loosening treatment through the multiple soil loosening and pesticide spraying mechanisms, meanwhile, degradation pesticide liquid is sprayed through the multiple soil loosening and pesticide spraying mechanisms, the degradation pesticide liquid can effectively make contact with the loose soil, permeation of the degradation pesticide liquid is facilitated, and the degradation treatment effect is improved.

The utility model discloses a vertical tower formwork support and belongs to the field of supports, the vertical tower formwork support comprises a plurality of stand columns, mounting rods are fixedly mounted on the two sides of each stand column, a connecting rod is arranged between every two mounting rods on the same side, and supporting plates fixedly sleeve the side walls of the ends, opposite to the connecting rods, of the two mounting rods on the same side; movable grooves are formed in the two ends of the connecting rods, positioning assemblies are arranged in the movable grooves, standing plates are fixedly mounted on the inner sides of the connecting rods, mounting plates fixedly sleeve the side walls of the two ends of the stand columns, and splicing columns are fixedly mounted at the top ends of the stand columns. Through the arrangement of the standing plate, a worker can stand and place maintenance tools conveniently, then the worker can maintain the tower body subsequently conveniently, the effect of increasing the standing area of the worker is achieved through the arrangement of the auxiliary plates on the two sides of the standing plate, and the effect of supporting and stabilizing the standing plate is achieved through the arrangement of the supporting rods between the standing plate and the connecting rods.

The utility model belongs to the field of filter bags, and particularly relates to a filter bag convenient to replace, which comprises a fixing frame symmetrically provided with clamping grooves, an L-shaped traction plate is mounted in the clamping grooves of the fixing frame, and a cage skeleton is mounted on the fixing frame; the outer wall of the cage framework is sleeved with filter cloth, and the two ends of the filter cloth are embedded into the clamping grooves of the fixing frame; the air bag mechanism comprises air bag pieces arranged in the fixing frame at intervals, ventilation partition plates used for ventilation are installed between the adjacent air bag pieces, and ventilation valves penetrating through the front end of the fixing frame are installed on the air bag pieces. Screw holes are symmetrically formed in the fixing frame and the traction plate; when the filter bag is damaged, the damaged filter cloth can be detached from the cage skeleton, the two ends of the new filter cloth are respectively placed in the clamping grooves formed in the fixing frame, the replaced filter cloth is stably fixed on the outer side of the cage skeleton, a traditional cage skeleton internal fixing structure is replaced by the fixing frame, external fixation of the filter cloth is realized, and the filter cloth is convenient to detach and replace when being damaged.

The utility model relates to the technical field of magnesium alloy extrusion dies, and discloses an anti-dislocation magnesium alloy extrusion die, which comprises a bottom plate and is characterized in that four limiting holes are formed in the top of the bottom plate, a lower die is arranged at the top of the bottom plate, an upper die is arranged right above the lower die, and the lower die is arranged above the upper die. The two ends of the upper die are fixedly connected with fixing plates correspondingly, and penetrating holes corresponding to the limiting holes are formed in the fixing plates correspondingly. A support is fixedly connected to the top of the bottom plate, a hydraulic rod is fixedly connected to the top of the support, the bottom of the hydraulic rod penetrates through the support and is fixedly connected with a transverse plate, a motor is fixedly connected to the left side of the transverse plate, a clamping groove is formed in the bottom of the transverse plate, and a two-way screw is arranged in the clamping groove. According to the anti-dislocation magnesium alloy extrusion die, it is guaranteed that the upper die cannot be dislocated, the mounting plate and the upper die can be detached, independent replacement of the mounting plate and the upper die is facilitated, and the production cost of the anti-dislocation magnesium alloy extrusion die is reduced.

The utility model discloses a dust fall spraying device for building engineering construction, which belongs to the technical field of building construction auxiliary facilities and comprises a frame, a support plate is arranged at the upper end of the frame, a water tank is arranged at the upper end of the support plate, a water inlet filter component is arranged in the water tank, and an adjusting device is arranged on one side of the water tank. An angle adjusting assembly is arranged at the upper end of the adjusting device, a mounting plate is arranged at the upper end of the angle adjusting assembly, an atomizing nozzle is arranged at the upper end of the mounting plate, and a positioning mounting assembly corresponding to the adjusting device is arranged in the supporting plate; by arranging the angle adjusting assembly, the horizontal angle of the atomizing nozzle can be adjusted, the dust falling and spraying effect is guaranteed, the use quality of equipment is improved, the working environment quality is guaranteed, the adjusting device can be conveniently disassembled, assembled and replaced by arranging the positioning installation assembly, the use convenience of the equipment is improved, and manpower resources are saved.

The invention relates to the technical field of fluid machinery, in particular to an injection mechanism with a detachable injection needle tip and an impulse turbine system. The spray needle assembly comprises a supporting plate, a spray needle body and a spray needle tip, the supporting plate is fixed to the inner wall of the straight pipe section, and the spray needle body is movably connected to the other end of the supporting plate and detachably arranged at the other end of the spray needle body; the nozzle assembly is arranged at the opening of the straight pipe section, and the spray needle body and the spray needle tip can move in the direction close to or away from the nozzle assembly; the ratio of the length of the spray needle point to the diameter of the nozzle assembly is not larger than 0.2. According to the spraying mechanism with the detachable spraying needle tip and the impulse water turbine system, the spraying needle size with the optimal efficiency is given, and even if the spraying needle tip falls off, the influence on the hydraulic performance is small; the spray needle tip is detachably mounted on the spray needle body, so that the spray needle tip is convenient to disassemble and replace, and the performance of the spray needle assembly is ensured.

The invention relates to the technical field of coating machines, and discloses a multi-drying coating machine which comprises a supporting plate body, a base material roller, a composite drying machine and a discharging roller, the two ends of the supporting plate body are rotationally connected with the base material roller and the discharging roller respectively, the composite drying machine is arranged between the base material roller and the discharging roller, a tension shaft is arranged between the base material roller and the composite drying machine, and the tension shaft is connected with the supporting plate body. A coating mechanism is arranged on one side of the tension shaft and comprises a rotary coating roller, a supporting base and a comma scraper, a coating base material is arranged between the rotary coating roller and the supporting base, the comma scraper is arranged on one side of the rotary coating roller, and ultrasonic vibration modules are arranged on the upper side and the lower side of the comma scraper; the ultrasonic vibration module changes an electromagnetic field around the comma scraper to enable the surface of the comma scraper to generate high-frequency vibration; the high-frequency vibration of the comma scraper not only optimizes the distribution of the coating, but also enhances the interaction between the coating and the base material, and effectively promotes the contact and permeation between coating molecules and the coating base material.

The utility model belongs to the technical field of hydraulic breaking hammers, particularly relates to a damping type hydraulic breaking hammer, and aims to solve the problems that an existing hydraulic breaking hammer does not have buffering and damping functions, and a drill rod is inconvenient to disassemble and replace, the damping type hydraulic breaking hammer comprises a cylinder body, and two connecting pieces are arranged at the top of the cylinder body. A plurality of mounting holes are formed in the two connecting pieces, a hydraulic cavity groove is formed in the cylinder body, an impact piston is slidably mounted in the hydraulic cavity groove, the right side of the hydraulic cavity groove communicates with a hydraulic opening, a damping shock absorber is arranged on the left side of the impact piston, a mounting piece is connected to the damping shock absorber, and the mounting piece is slidably connected with the inner wall of the hydraulic cavity groove; a mounting mechanism is arranged on the left side of the mounting piece and provided with a drill rod. The drill rod is simple in structure, the drill rod is used for crushing an object, when the drill rod is subjected to counter-acting force from the object, the arranged damping shock absorber is used for shock absorption, and the drill rod can be conveniently detached and replaced.

The invention discloses an oil-water separation filter element of an air compressor and a filter, and relates to the technical field of air compressor after-treatment, the oil-water separation filter element comprises an outer shell, a filtering assembly for filtering compressed air and an anti-blocking assembly for preventing a filtering medium from being blocked, the anti-blocking assembly is arranged at the top of a partition plate, and a positioning assembly is arranged on the partition plate; through the effect of the filtering assembly, compressed gas generated by the air compressor is filtered, an oil-water mixture in the compressed gas is efficiently separated, through the effect of the air pressure assembly, nitrogen is conveyed into the spiral pipe in a flowing mode and is obliquely sprayed out through the spraying opening, and backwashing treatment is conducted on the filtering assembly; nitrogen cannot chemically react with a filter element material in the backwashing process, the filter element can be effectively protected, the service life of the filter element can be effectively prolonged, nitrogen is usually dry and extremely low in water content, the filter element can be prevented from being affected with damp due to introduction of water in the backwashing process, and then blockage of a filtering medium is avoided.

The utility model relates to the field of milling machines, and discloses a milling machine convenient to replace a cutter, which comprises a shell, the top of the shell is fixedly connected with a support seat, the top of the support seat is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a cylindrical rod, the outer wall of the cylindrical rod is fixedly connected with a belt pulley A, and the belt pulley A is fixedly connected with a cutter. The inner wall of the shell is rotatably connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a belt pulley B, the rotating shaft is provided with an assembly and disassembly assembly, the assembly and disassembly assembly is detachably provided with a milling cutter, the outer wall of the shell is provided with a dust collection assembly, the dust collection assembly is provided with an adjusting assembly, and the adjusting assembly comprises a cylindrical shaft. According to the milling machine, the dust collection assembly and the adjusting assembly are arranged, the dust collection head is driven to swing in a reciprocating mode through the rotating effect of the cylindrical shaft, the dust collection head can suck dust and collect the dust into the dust collection box, and therefore the using effect of the milling machine is improved.

The geological drill rod comprises a drill rod body and a connecting rod arranged at the bottom of the drill rod body, a drill bit is arranged at the bottom of the connecting rod body, an inserting groove is formed in the bottom of the drill rod body, an inserting block is fixedly connected to the top of the connecting rod body, and clamping blocks are arranged on the periphery of the inserting block in an inserted mode. A limiting plate is fixedly connected to one side of the clamping block, and a first spring is arranged on one side of the limiting plate. According to the utility model, firstly, through the matching of the inserting block and the inserting groove, the torsion transmission between the drill rod and the connecting rod can be increased after the drill rod and the connecting rod are connected, the connection looseness caused by the rotation of the drill rod and the connecting rod is avoided, the use effect is improved, and one end of the clamping block is inserted into the clamping groove, so that the installation and the fixation are convenient; and the pushing blocks are sequentially controlled by moving the moving ring to push the clamping blocks, disassembly and replacement are convenient, and the using effect is improved.

The present application relates to a kind of rocket engine injector thin-wall milling self-positioning fixture and assembly method, it mainly includes upper positioning tire body component, conical surface expansion ring, tire unloading bottom plate, pressing cover plate, tire unloading lifting ring, pressing bolt, expansion screw, lower positioning bottom plate component, locking bolt, long fixed bolt, lower positioning bottom plate component is fixed in machine tool workbench by locking bolt long-term, always not disassembled.Product is positioned and clamped and supported by conical surface expansion ring, tire unloading bottom plate, pressing cover plate, pressing bolt, expansion screw before milling injector thin-wall and positioning tire body component, limit the radial and axial movement of injector thin-wall;Injector thin-wall is positioned and clamped and supported by conical surface expansion ring, tire unloading bottom plate, pressing cover plate, pressing bolt, expansion screw before milling injector thin-wall and positioning tire body component, limit the radial and axial movement of injector thin-wall;Injector thin-wall is positioned and clamped and supported by conical surface expansion ring, tire unloading bottom plate, pressing cover plate, pressing bolt, expansion sleeve before milling injector thin-wall and positioning tire body component, limit the radial and axial movement of injector thinn

The invention relates to an efficient heat exchanger for petrochemical engineering, and relates to the technical field of heat exchangers. The device comprises a heat exchange shell, a corrosion inhibition box fixed to the heat exchange shell, a plurality of heat exchange pipes and two baffle plates which are rotationally arranged on the heat exchange shell, a processing mechanism for conducting scraping, brushing, fracture detection and marking on the heat exchange pipes correspondingly, and a rotating assembly for conducting rotating driving on the heat exchange pipes. The translation assembly is used for carrying out translation driving on the two baffle plates; the test assembly is used for carrying out deformation detection on the inner wall of the heat exchange shell; the corrosion inhibition box is used for storing a corrosion inhibitor, and a control assembly used for controlling the release amount of the corrosion inhibitor is arranged on the heat exchange shell. The purpose of heat exchange between the petroleum raw material and the heat medium can be achieved, the petroleum raw material can be guided to be evenly distributed in the tube pass, the phenomenon that the petroleum raw material forms laminar flow or uneven flow in the tube pass is avoided, heat stress caused by uneven heating of the heat exchange tube is prevented, and deformation and cracking of the heat exchange tube due to the heat stress are prevented.

The utility model discloses an automatic fiber cloth cleaning box, which relates to the technical field of fiber cloth recycling, and comprises a first lifting plate and a second lifting plate which are arranged on a cover plate in a lifting manner, and a plurality of rotating rollers are respectively and rotatably arranged on the first lifting plate and the second lifting plate; the plurality of cleaning brushes are respectively arranged on the plurality of rotating rollers, the cleaning brush on the first lifting plate is used for brushing the lower surface of the cloth, and the cleaning brush on the second lifting plate is used for brushing the upper surface of the cloth; the cleaning brush comprises two brush plates which are arranged on the rotating roller in a sleeving mode, and the two ends of the two brush plates are buckled together. Wherein a convex body is arranged on the brush plate, a positioning groove is formed in the position, corresponding to the convex body, of the rotating roller, and the convex body extends into the positioning groove; the cleaning brush has the advantages of being convenient to use, convenient to replace, not prone to causing liquid dripping and the like.

The utility model discloses a novel split movable denture, which comprises a gum, a base, a tooth hook, a tooth seat and a tooth crown, and is provided with a mounting device, a movable rod is pushed to move through an adjusting plate, the movable rod pushes the adjusting rod to move when moving, then the tooth crown is taken out, and the tooth crown pushes a limiting block to move when moving. A new dental crown is placed along the fixing rod, the movable rod is loosened, the spring pushes the adjusting rod to move upwards, the limiting block is pushed when the adjusting rod moves, the limiting block enters the limiting groove to be fixed, through the arrangement, the dental crown can be conveniently and rapidly detached and replaced, replacement of the whole false tooth is not needed, and the economic burden of a patient is relieved; the service life of the denture is prolonged.

The invention relates to the technical field of battery modules, in particular to a battery module with a battery monomer spacer and a battery safety assessment method. The connecting mechanism comprises a conducting piece and a bracket, and the battery monomers are detachably connected; the spacing mechanism comprises a spacing piece; the buffer mechanism comprises a buffer rod; the distance piece plays a role in safety protection, the modular arrangement facilitates disassembly and replacement during operation and maintenance, the closed coil pipe is arranged in the distance piece and communicates with the buffer rod, the switching columns are synchronously switched to be communicated during charging, and low-temperature hydraulic oil is connected for liquid cooling during charging of the battery module, so that fire caused by overheating is prevented, and the service life of the battery module is prolonged. Fire-resistant hydraulic oil is circularly introduced into the buffer rod for cooling, flame retardance is achieved when a fire occurs, real-time monitoring and automatic power-off protection of the photosensitive sensor are combined, the fault position is accurately detected, and early warning and cooling protection are ensured through intelligent data analysis and multi-dimensional monitoring, so that the safety assessment accuracy of the battery is improved.

The invention belongs to the technical field of flow meters, and particularly relates to a bidirectional flow type balance flow meter which comprises a measuring pipe, a flow meter, a flow meter and a flow meter. A pair of pore plates is connected into the measuring tube, the two pore plates are respectively used for performing pressure reduction on fluid in the measuring tube twice, a plurality of pressure reduction holes are uniformly formed in the pore plates, a first pressure taking tube is connected onto the measuring tube, and the first pressure taking tube is arranged between the two pore plates; the two straight pipes are respectively connected with a first pressure taking pipe, the two straight pipes are respectively connected with a second pressure taking pipe, the first pressure taking pipe is used for carrying out pressure measurement on fluid after first pressure reduction, and the differential pressure transmitter is connected with the first pressure taking pipe and the second pressure taking pipes; the processor is used for processing the pressure difference signal; the flow meter is fixedly arranged on the differential pressure transmitter; the two pore plates are arranged to depressurize the fluid twice, the pressure sensor obtains the pressure difference twice, the processor calculates the pressure difference twice to obtain the flow, and then the measurement result is more accurate.

The utility model discloses a sewage quality monitoring device, and relates to the technical field of monitoring devices.The sewage quality monitoring device further comprises a bottom plate, a vertical rod is rotationally connected to the top of the bottom plate, a mounting plate fixedly sleeves the outer side of the vertical rod, a through groove is formed in one side of the top of the mounting plate in a penetrating mode, an electric telescopic rod is mounted in the through groove, and a connecting plate is fixedly connected to the bottom end of an output shaft of the electric telescopic rod; a water quality monitor body is arranged at the bottom of the connecting plate, a positioning mechanism is arranged at the top of the bottom plate and comprises a mounting frame, the mounting frame fixedly sleeves the outer side of the vertical rod, a sliding plate is slidably connected in the mounting frame, a clamping plate is fixedly connected to the bottom of the sliding plate, a mounting ring is fixedly connected to the top of the bottom plate, and two clamping grooves are formed in the outer wall of the mounting ring. And a worker can conveniently, rapidly and accurately rotate the vertical rod by 90 degrees, so that a clamping plate can be conveniently and rapidly aligned with a clamping groove, the worker can conveniently and rapidly position the vertical rod, and the working efficiency of the worker is improved.

The invention relates to the technical field of vehicle maintenance equipment, and discloses a telescopic folding type wheel dismounting device which comprises a movable chassis, a folding mechanism is arranged in the movable chassis, and two wheel dismounting mechanisms are arranged outside the folding mechanism. The folding mechanism is used for folding the wheel dismounting mechanism and adjusting the position of the wheel dismounting mechanism, the wheel dismounting mechanism is used for clamping and dismounting wheels, a vehicle body jacking assembly is arranged on the side, away from the folding mechanism, of the interior of the movable chassis, and the vehicle body jacking assembly is used for jacking a vehicle. The folding mechanism comprises two movable frames, and racks are fixedly connected to the inner sides of the movable frames. The vehicle is jacked up through the vehicle body jacking mechanism, then the position of the wheel disassembling mechanism is adjusted through the folding mechanism, the wheel is disassembled from the vehicle through the wheel disassembling mechanism, automatic wheel disassembling is achieved, the automation degree is high, time and labor are saved, and the wheel disassembling and replacing efficiency is improved.

The present invention discloses a desilting device for water supply and drainage pipes for engineering construction, comprising a driving base, driving wheels are fixedly arranged at the four corners of the lower end of the driving base, and a fixed box is fixedly connected to the left portion of the upper end of the driving base. At least one connecting pipe is fixedly connected to the right side of the fixed box, a micro pump for pumping water is arranged on the left portion of the connecting pipe, and a booster nozzle is arranged on the right portion of the connecting pipe. A mounting mechanism is fixedly connected to the right portion of the upper end of the driving base, a swing mechanism is fixedly connected to the mounting mechanism, a plurality of cleaning mechanisms for cleaning pipes are fixedly connected to the right portion of the outer side of the swing mechanism, and a distance sensor is fixedly connected to the front portion of the right end of the swing mechanism. The desilting device for water supply and drainage pipes for engineering construction of the present invention can be adjusted according to different pipe diameters, which is conducive to ensuring the normal cleaning of pipe sludge, and has a stable structure, which is conducive to scraping and brushing to fully clean the pipe wall, and effectively clean the harder lumps on the inner wall of the drainage pipe, and is suitable for wide use.

The invention provides a refrigerating and cooling device with an air-blowing dust removal structure, and relates to the technical field of refrigerating and cooling, the refrigerating and cooling device comprises a device shell component, a filtering and dust removal mechanism is mounted in the device shell component, a filter element is mounted in the filtering and dust removal mechanism, and a grating dust removal mechanism is mounted on one side of the filtering and dust removal mechanism. The invention aims to provide a scraper blade capable of stripping dust on the surface of a filter element, and a conveying roller is matched to convey the stripped dust to the rear side of a sliding block, so that the influence of dust blockage on the efficiency of the scraper blade is prevented, the service life of the filter element is prolonged, and the dust filtering efficiency of the filter element is improved; and meanwhile, the rotating shaft can rotate by itself in cooperation with the second toothed plate, dust of the air inlet grille can be cleaned through a cleaning brush installed at one end of the rotating shaft, and dust cleaning can be assisted for the air inlet grille while air purification can be achieved.

The utility model relates to the field of injection molds, and discloses a cooling mechanism for processing a sealing cover injection mold, which comprises a lower mold, an inner mold core is detachably mounted on the inner wall of the lower mold through a positioning assembly, a plurality of groups of positioning blocks are fixedly connected to the bottom end of the outer wall of the inner mold core, and the positioning assembly comprises two groups of fixing seats. A clamping block is elastically connected to the side wall of the inner side of the fixing base through a limiting spring, one end of the limiting spring is fixedly connected to the outer wall of the right side of the fixing base, the other end of the limiting spring is fixedly connected to the outer wall of the clamping block, a fixing block is fixedly connected to the end, away from the clamping block, of the connecting rod, and a triangular block is slidably connected to the inner wall of the fixing base. According to the mold, the fixing assembly is arranged, the inner mold core can be detached and replaced more conveniently by pushing the triangular block, the overall structure is simple and convenient, and the use cost of enterprises can be greatly reduced.