44results about How to "Safe replacement" patented technology

The simple tool comprises a first lower sleeve and a first telescopic rod inserted in the first lower sleeve, a long-strip-shaped opening is formed in the side wall of the first lower sleeve in the axis direction of the first lower sleeve, a chain block is hung on the portion, above the opening, of the side wall of the first lower sleeve, and the first telescopic rod is inserted in the first lower sleeve. A lifting hook of the chain block is matched with the lower end of the first telescopic rod through the opening, and a supporting base used for supporting the cantilever is arranged at the top of the first telescopic rod. The simple tool convenient for replacing the cantilever insulator of the contact network is simple in structure, comprises a first lower sleeve and a first telescopic rod which are sleeved together, and has scalability, the first telescopic rod can ascend relative to the first lower sleeve through a chain block, the outer end of a flat cantilever is jacked up, the cantilever does not deviate, and the cantilever insulator is convenient to replace. Therefore, the insulator can be replaced safely and quickly, and the guide height change is not caused after the replacement is finished, and the guide height does not need to be adjusted.

The utility model belongs to the technical field of sheet metal bending equipment, and discloses a pneumatic hinge cutter of a flexible bending center machine, which comprises a hinge cutter holder, and a hinge female cutter is fixedly mounted on one side of the bottom surface of the hinge cutter holder. The pushing assembly is matched with rotation control of the rotating rod, a rotating and swinging mode is utilized under thrust, the connecting function of the connecting assembly is matched, movement control over a set of movable inclined block cutters is achieved, the inclined faces of the movable inclined block cutters are matched with the inclined faces of the movable auxiliary cutters, and the hinge main cutter and the movable auxiliary cutters are pushed away in the transverse advancing process; compared with a common hinge knife which freely falls to act, the hinge knife has the advantages that the reaction speed is greatly increased, a metal plate is not scratched and the plate is not shoveled, and compared with a traditional hinge knife which is driven in a cylinder mode, the hinge knife has the advantages that the stroke is saved, the stroke is short, the action is fast, and the working efficiency is improved. The action efficiency is greatly improved, and the use effect is good.

The invention discloses a backward battery non-power-cut replacement device for a direct-current storage battery pack of a transformer substation, and relates to the technical field of transformer substation power supply maintenance. The problems that in the prior art, comprehensive real-time monitoring and early warning functions are lacked, the data processing and analysis capacity is limited, the running state of a storage battery pack cannot be deeply evaluated, the system integration level and the intelligent level are low, and automatic fault diagnosis and battery replacement processes cannot be achieved are solved. By integrating the storage battery monitoring unit, the operation data of the storage battery pack can be collected and analyzed in real time, the position of a fault storage battery is determined, polarity testing is carried out, and the safety of the replacement process is ensured; the main switch-on unit keeps a main loop access, and leads current to the monitoring unit for sampling through a current diverter, so that continuous monitoring of the storage battery pack is realized; the maintenance efficiency and safety of the storage battery pack are effectively improved, the operation and maintenance cost is reduced, and a powerful guarantee is provided for safe and stable operation of a power grid.

The utility model relates to the technical field of gas purification, in particular to a gas purification device for a tunnel, which comprises a gas adsorption device and a spraying device. According to the utility model, the gas concentration on the tunneling working face can be reduced through the gas adsorption device and the spraying device, so that the construction progress is accelerated, and the construction safety is ensured. The whole structure is simple, and disassembly, assembly and operation are convenient. The filter screens are installed through the clamping grooves and can be popped up to be replaced conveniently, and time and labor cost are saved. When the gas concentration of a tunneling face is reduced, the device can replace an air blower. Secondly, when the gas is suddenly sprayed out and the concentration of the gas is increased at a high speed, the spraying device and the gas adsorption device work simultaneously, and safe evacuation of personnel is guaranteed.

The utility model provides a head fixing device for scanning, which comprises a base of a U-shaped structure. A mounting groove is formed in the top face of one side of the base, a rotary drum is arranged in the mounting groove, clamping grooves are formed in the two sides of the mounting groove, a shaft of the rotary drum and the clamping grooves are movably mounted, and a film is wound on the surface of the rotary drum. By arranging the thin film and the cutting knife, a new thin film can be quickly covered on the base, the cleanness of the surface of the base is ensured, cross infection of patients is prevented, the base 1 does not need to be disassembled for cleaning, and the use is convenient.

The utility model discloses a hot air comb convenient to carry and store, and belongs to the technical field of personal care appliances. Comprising a handle and an air outlet cylinder, and a self-rotating structure is arranged between the handle and the air outlet cylinder to enable the air outlet cylinder to rotate relative to the handle and be overlapped; the other end of the air outlet cylinder is connected with the anti-scalding comb head through a buckle assembly. The self-rotating structure comprises a rotating part, a sliding piece and the like, locking is achieved through clamping of a locking protruding column and an auxiliary clamping hole, and the jacking assembly is used for unlocking. The anti-scald comb head comprises a three-dimensional annular brush comb head and a single-face brush comb head, the three-dimensional annular brush comb head is convenient to operate and far away from a heat source due to the rotary handle design, and the single-face brush comb head divides a cavity to guide airflow. The wedge-shaped clamping block of the buckle assembly is matched with the L-shaped locking groove to achieve rapid disassembly and assembly of the comb head. The handle is connected with a power line through a quick-plug structure, and 360-degree circumferential rotation sliding electrification is supported. The problems that a traditional hot air comb is inconvenient to fold, the comb head is inconvenient to replace, and the anti-scalding effect is insufficient are solved, and the multifunctional hot air comb has the advantages of being convenient to store, convenient to replace the comb head and safe in anti-scalding effect due to the separated power line design.

The utility model discloses a hot pressing device for electronic connecting wire production, which belongs to the technical field of electronic connecting wires and comprises a workbench and a U-shaped groove, the U-shaped groove is arranged on the upper surface of the workbench, and a double-shaft motor is fixedly connected inside the U-shaped groove. By arranging a double-shaft motor, a first bevel gear, a second bevel gear, a threaded column and a threaded cap, when people need to replace an electronic connecting wire, people only need to control the double-shaft motor to operate through a control switch so as to drive the second bevel gear to rotate, and under the cooperation of the second bevel gear and the first bevel gear, the threaded column is driven to rotate so as to replace the electronic connecting wire. And under the cooperation of the threaded column and the threaded cap, the placement table is driven to move, and after the placement table moves to a safe position, the electronic connecting wire on the placement table is replaced, so that the purpose of safely replacing the electronic connecting wire is achieved.

An automatic blood viscosity measuring device according to an embodiment of the present invention comprises: a housing provided with an opening door; a blood sample attachment unit to which a blood collection tube is attached; a blood sample pretreatment unit that sandwiches a plurality of blood collection tubes, scans the sandwiched blood collection tubes, and separates blood collection tube caps attached to the upper ends of the blood collection tubes; a blood sample transfer unit that moves the blood collection tube held by the blood sample pretreatment unit; a blood viscosity measurement unit having the blood viscosity measurement kit attached thereto and including one or more channels for measuring the viscosity of the blood sample injected into the blood viscosity measurement kit; a kit attachment unit which is disposed inside the housing and which attaches a blood viscosity measurement kit to a blood viscosity measurement unit; and a blood sample post-processing unit that sucks in the blood sample from the blood collection tube transferred by the blood sample transfer unit and injects the blood sample into the mounted blood viscosity measurement kit, whereby viscosity measurement can be performed on one or more blood samples at the same time, and it is possible to reduce the work time and improve the work efficiency. And the use simplicity is improved.

The utility model relates to the technical field of plastic production equipment, in particular to a plastic master batch extrusion device which comprises an extrusion cylinder, a feeding port and an extrusion motor are arranged on the extrusion cylinder, and the extrusion motor is connected with an extrusion shaft provided with a spiral extrusion plate; a discharge port is formed in the extrusion cylinder, and a discharge plate is mounted on the discharge port through a quick release structure; the quick-release structure adopts a structure similar to a quick-release flange structure, the discharge plate can be locked or unlocked only by screwing a knob, discharge plates with different aperture specifications can be quickly detached and replaced conveniently, the detaching and replacing process is convenient and quick, direct contact with the discharge plate is not needed, meanwhile, a stable and reliable locking structure can be provided for the discharge plate, and the discharge plate can be locked or unlocked conveniently. The discharging plate is prevented from falling off in the working process; and a rapid cooling mechanism is further arranged, so that the discharging plate can be rapidly cooled when the discharging plate is disassembled, and an operator is prevented from being scalded.

A two-section type coal feeding roller replacing platform of a gas producer comprises an operation platform, a concave notch is formed in one side of the operation platform, the two-section type coal feeding roller replacing platform further comprises a platform climbing stair, a hoisting assembly and two same positioning columns, the platform climbing stair is welded to the side, opposite to the concave notch, of the operation platform, and the two same positioning columns are installed at the bottom of one side of the concave notch of the operation platform respectively. The hoisting assembly is installed on the surface of the operation platform and comprises a hydraulic lifting column, a cross arm is welded to the top of the hydraulic lifting column, a fixed pulley installation frame is welded to the bottom of one end of the cross arm, a rotating base is arranged at the bottom of the hydraulic lifting column, and an auxiliary rotating rod is installed in the middle of the surface of the hydraulic lifting column. According to the invention, the condition of inclined pulling and inclined hoisting in the operation process of replacing the coaling roller can be avoided, the potential safety hazard in the field operation process is reduced, and the safety coefficient of operation is improved; and meanwhile, the operation is completed under the condition that fewer operators participate, so that the labor cost and the time cost are reduced, and the working efficiency is improved.

The utility model provides a springless barrier gate and a barrier gate, the springless barrier gate comprises a case and a barrier gate core, the barrier gate core is arranged in the case, the barrier gate core comprises a barrier gate bottom plate, a harmonic reducer and a servo motor which are connected with each other are installed on the barrier gate bottom plate, and an output shaft is arranged at one end of the harmonic reducer far away from the servo motor. The servo motor is used for driving the output shaft to rotate through the harmonic reducer, a brake and an encoder are sequentially installed at the end, away from the output shaft, of the servo motor, the brake is used for locking the servo motor after the servo motor is powered off, the encoder is used for encoding and controlling the servo motor to move, and a limiting rod is arranged on the output shaft. The limiting rod is used for controlling the rotating direction of the output shaft. The spring-free barrier gate provided by the utility model is stable in operation, simple in structure, safe and reliable, and can stop immediately when power is off.

The utility model discloses an intelligent mechanical dot matrix science and technology screen which comprises an installation base, first square pipes are fixedly installed at the rear end of the top of the installation base and arranged in an array state relative to the horizontal line of the installation base, and second square pipes are installed on rod bodies of the first square pipes. The second square pipes are installed on a rod body of the first square pipe and arranged in an array state relative to the vertical line of the first square pipe, the connecting sleeves are installed on the rod body of the first square pipe and arranged in an array state relative to the vertical line of the first square pipe, studs are installed at the upper end and the lower end of each connecting sleeve, and third square pipes are connected to the inner sides of the connecting sleeves in an inserted mode. According to the intelligent mechanical dot matrix science and technology screen, through a firm installation structure, the stability of the screen can be guaranteed, meanwhile, an operator can conveniently, rapidly and safely maintain and replace screen parts, diversified choices are achieved, meanwhile, the screen can be stretched and over-contracted according to needs, and the practicability is high. And therefore, the device adapts to different places and requirements.

This utility model discloses a trolley for replacing and transferring HGIS circuit breakers. The trolley includes a bottom frame (1), at least two pairs of wheels (2) with fixed directions are arranged at the bottom of the bottom frame (1), and at least one pair of pressure-bearing columns (3) are provided at the top of the bottom frame (1), with an arc-shaped support groove (4) between the pair of pressure-bearing columns (3) capable of supporting the HGIS circuit breaker. The trolley of this utility model, relying on its stable support concave surface and braking performance, can stably support the HGIS circuit breaker equipment, making it easy to carry the HGIS circuit breaker on the replacement and transfer trolley. During the replacement process, it can quickly and stably complete the pushing and pushing of the equipment on the sliding rail and timely braking.

The utility model relates to the technical field of tabletting equipment for ginseng slice processing, in particular to a tabletting device for ginseng slice processing, which comprises an operating table, a stamping mechanism and a feeding mechanism are arranged on the operating table, a template is arranged at the top end of the operating table, a discharge port is arranged on the operating table, and a pressing mechanism is arranged on the operating table. A scraping mechanism is arranged between the operation table and the template, a supporting plate is arranged below the operation table, a first supporting column and a second supporting column are arranged between the supporting plate and the operation table, a mounting groove is formed in the supporting plate, a weighing mechanism is arranged on the mounting groove, a temporary storage box is arranged on the weighing mechanism, and a lifting mechanism is arranged on the temporary storage box. According to the structure, redundant materials on the template are conveniently scraped through the scraping mechanism, then the materials are temporarily stored through the temporary storage groove of the temporary storage box, and therefore material waste is reduced.

The present disclosure proposes a balancing method and balancing system for a battery transport vehicle, wherein the balancing method includes: S1: after the vehicle reaches a predetermined position, controlling the movement of multiple support devices around the vehicle body so that the first horizontal degree of the vehicle body is not greater than a horizontal threshold; S2: collecting and storing the vehicle's position information and the support information of multiple support devices; S3: establishing a corresponding relationship between the position information and the multiple support information; S4: after the vehicle reaches the predetermined position again, retrieving multiple support information corresponding to the position information according to the input position information, and controlling the movement of the support device according to the support information. In a balancing method and balancing system for a battery transport vehicle disclosed in the present disclosure, after the vehicle reaches the predetermined position again, by retrieving multiple stored support information and controlling the movement of the support device according to the support information, the vehicle body is quickly balanced, effectively reducing the difficulty of balancing the vehicle body.

The present invention discloses a horizontal hole removable packing type hydraulic expansion type two-stage orifice clamping device, comprising a primary orifice clamping device based on packing and a secondary orifice clamping device connected between the primary orifice clamping device and the orifice pipe; the secondary orifice clamping device comprises a rubber sleeve sleeved on a working pipe and a secondary clamping mechanism capable of radially compressing the rubber sleeve, an inner annular gap is provided between the working pipe and the rubber sleeve, the secondary clamping mechanism compresses the rubber sleeve radially inwardly by filling a fluid into the outer peripheral side of the rubber sleeve, so that the inner annular gap is sealed by the rubber sleeve clamped on the working pipe; the present invention aims at the defect that the packing of the traditional horizontal drilling blowout prevention device cannot be replaced safely, and by arranging a secondary orifice clamping device to seal the orifice when the packing needs to be replaced, the risk of sandblasting and water gushing when the packing is replaced can be completely avoided, the packing can be replaced safely and reliably, and the risk can be controlled.

The utility model relates to the related technical field of shredding machines, in particular to a mounting assembly for replacing various knife rolls and a shredding machine, the mounting assembly comprises a first rotating shaft, the knife rolls, a fastener and a limiting plug, the first rotating shaft is mounted on the side wall of a cabin body of the shredding machine, the first rotating shaft is rotatably fixed with the limiting plug, the limiting plug is in threaded connection with the fastener, and the knife rolls are mounted on the side wall of the cabin body of the shredding machine. The fastener is connected with the knife roll and the limiting plug, the knife roll is positioned and fixed on the first rotating shaft through the fastener and the limiting plug, the second rotating shaft and the first rotating shaft are symmetrically distributed, and the second rotating shaft and the first rotating shaft are the same in structure; through the arrangement of the first mounting hole, the limiting block, the second mounting hole, the plate hole, the fastening piece, the screw rod and the limiting plug, the connection stability can be improved, the phenomenon that the structure is loosened or fractured due to failure of a connection point is reduced, the connection stability can be enhanced, and it is ensured that the connection device can bear expected loads and environmental influences.

The utility model relates to the technical field of steering wheels, and discloses an automatic steering wheel edge knocking machine which comprises an edge knocking station, a steering wheel feeding and discharging station, a jig replacing and conveying station, a hydraulic station and a distribution box, and the steering wheel feeding and discharging station and the jig replacing and conveying station are arranged on the two sides of the edge knocking station respectively. The steering wheel feeding and discharging station and the jig replacing and conveying station are both fixedly connected with the edge knocking station, the hydraulic station and the distribution box are arranged outside the edge knocking station, and a jig set used for steering wheel edge knocking is arranged in the edge knocking station. According to the device, the steering wheel is subjected to edge knocking treatment through control of structures such as the translation air cylinder, the whole process is automatically controlled, labor is greatly saved, operation efficiency is improved, and edge knocking is uniform; through the arrangement, the treated waste materials can be conveniently collected, and it is ensured that the working environment is clean and tidy; through the arrangement, the edge knocking jig is convenient to replace through rolling, so that the jig is simpler, more convenient and safer to replace.

The utility model relates to a compression roller cleaning scraper device and a compression roller device. The compression roller cleaning scraper device comprises two mounting plates and a scraper blade, the scraper assembly comprises a scraper seat of which the two ends are rotationally connected to the two mounting plates in a one-to-one correspondence manner and a scraper mounted on the scraper seat; the horizontal pushing mechanism is used for driving the mounting plate to translate to drive the scraper assembly to get close to or away from the pressing roller; the turnover mechanism is used for driving the scraper base to rotate relative to the mounting plate so that the scraper base can have a first position and a second position, the scraper inclines by a preset angle relative to the horizontal direction at the first position, and the scraper is vertically arranged at the second position; the first limiting assembly is used for limiting rotation of the scraper base when the scraper base is located at the first position. The second limiting assembly is used for limiting rotation of the scraper base when the scraper base is located at the second position. The compression roller device comprises an upper compression roller, a lower compression roller, an upper scraper device and a lower scraper device, and the upper scraper device and the lower scraper device are symmetrically arranged. The scraper can be conveniently replaced, and the scraper replacement efficiency is improved.

The utility model provides a continuous plate production line cleaning section roller replacing device which comprises a base, four stand columns are vertically connected to the base, extending supporting legs are installed on the two sides of the base respectively, a roller supporting frame is fixedly connected between the stand columns, a screw jack is installed in the middle of the roller supporting frame, and the screw jack is connected with the extending supporting legs. A lower supporting roller plate and an upper supporting roller plate are arranged at the two ends of the roller supporting frame respectively, a lifting body is movably arranged between the stand columns, roller seats are installed on the two sides of the lifting body respectively, and a plurality of rollers are rotationally connected to the roller seats. The roller replacing device can be moved to the position where a roller needs to be replaced at will, the extensible support is arranged on the roller replacing device, the stress area of the roller replacing device can be increased, connection of the inner rail and the outer rail is safer and more reliable, roller replacing is safe, convenient, fast and safe, the labor intensity of operators is reduced, and it is ensured that when the roller body moves, the roller body can be replaced conveniently. And the roller changing device is prevented from toppling due to gravity center change.

The utility model discloses an agricultural product processing cleaning water recycling device which comprises a cleaning shell, a water pump, a fixing plate, a recycling pool and supporting legs. The number of the supporting legs is four, the top ends of the four supporting legs are fixedly connected with the lower surface of the cleaning shell, a drainage groove is formed in the bottom end of the cleaning shell, fixing blocks are fixedly connected to the front end and the rear end of the inner wall of the drainage groove correspondingly, sliding grooves are formed in the inner side faces of the two fixing blocks correspondingly, and a mounting frame is slidably connected between the two sliding grooves. The mounting frame and the sliding groove are connected through a clamping mechanism, a placement groove is formed in the mounting frame, and a filter screen is inserted into the placement groove; according to the agricultural product processing cleaning water recycling device, the mode of replacing and cleaning the filter screen is simpler, more convenient, quicker and safer, the operation time can be greatly shortened, the working efficiency is improved, meanwhile, the accidental risk possibly occurring in the process of replacing the filter screen is reduced, and the service life is prolonged.

The present invention relates to the technical field of low-voltage power distribution systems, and in particular relates to a fuse-switch-disconnector assembly. The fuse-switch-disconnector assembly comprises at least one fuse-switch-disconnector. The fuse-switch-disconnector comprises an isolating switch and a fuse assembly that are detachably connected. The fuse assembly comprises a fuse and a protective box used for accommodating the fuse. The protective box is provided with a heat dissipation channel that dissipates heat from the fuse, and the protective box is further provided with a transparent window by means of which the state of the fuse can be observed. The fuse-switch-disconnector assembly may ensure that the normal operation of other circuits will not be affected when the fuse of a certain circuit is replaced. Moreover, the detachable connection between the isolating switch and the fuse assembly may facilitate the replacement of the fuse assembly, and by means of the transparent window, the fuse may be visualized and the state of the fuse may be promptly observed.

The application provides an automatic automobile roof window waste collecting device, which comprises a bottom plate, a supporting assembly arranged on the bottom plate and used for supporting a workpiece, a positioning assembly arranged on the bottom plate, the positioning assembly being formed with a waste positioning space and used for guiding the falling of trimming waste along a predetermined track, a collecting assembly used for receiving the trimming waste falling from the waste positioning space, a guide assembly arranged on the bottom plate and used for guiding the collecting assembly to move into or out of the lower part of the waste positioning space, and a flattening assembly arranged adjacent to the positioning assembly and used for patting the edge of the trimming waste falling into the collecting assembly. The application solves the problem of disorderly stacking of waste in the collecting frame, improves the stacking flatness, and meets the automatic stamping production requirements.

The invention relates to the technical field of heavy metal ion treatment, and particularly discloses nickel-containing wastewater electrolysis recovery equipment which comprises an electrolytic bath, a cathode plate and an anode plate, an electrode plate rotating stand is rotationally arranged above a through opening of the electrolytic bath, the electrode plate rotating stand is in a regular polygon column shape, and each side face of the electrode plate rotating stand is provided with a rectangular groove concaved inwards; a row of polar plate clamping seats are arranged on the sliding rail in the rectangular groove at equal intervals, a fork type telescopic frame fixedly connected in the middle is arranged in the rectangular groove, one end of the fork type telescopic frame is connected with a telescopic driving part fixedly arranged, and the fork type telescopic frame is connected with the polar plate clamping seats; the nickel-containing wastewater electrolytic recovery equipment disclosed by the invention can adjust the distance between the cathode plate and the anode plate on line, so that the distance between the cathode plate and the anode plate can be always kept in an optimal range, on one hand, the nickel-containing wastewater can be efficiently electrolyzed and recovered, and on the other hand, the short circuit condition caused by too short distance of the electrode plates is avoided.

The utility model relates to the technical field of packaging bag processing equipment, in particular to a compression roller for exhaust of a packaging bag, which is characterized in that in the process of exhausting the long packaging bag, two ends of the packaging bag are respectively rolled and compacted by a rolling sleeve, and the packaging bag at an annular groove is not compacted, so that an exhaust channel with a proper size is formed in the packaging bag, and the packaging bag can be exhausted. And it is ensured that in the exhaust process, the space in the packaging bag is communicated with the atmospheric environment for real-time exhaust, then gas in the packaging bag between the two rolling sleeves can be exhausted from the multiple exhaust channels, the situation that the packaging bag expands in the exhaust process is avoided, and the flatness of the packaging bag is ensured.

The utility model relates to the field of metal filter bottle caps, and discloses a metal filter bottle cap sealing structure capable of being quickly assembled and disassembled, which comprises a filter bottle, a sealing ring, a filter bottle cap and a clamp ring, a boss column which protrudes downwards is arranged in the filter bottle cap, and an outer flanging table which is buckled and matched with the boss column in shape is arranged at the opening part of the filter bottle; the sealing ring is sleeved at the root part of the boss column of the filter bottle and is in elastic contact with the inner wall of the outer flanging table; and the hoop ring is clamped and sleeved outside the outer flanging table of the filter bottle and the filter bottle cover. The filter bottle cap has the advantages that the filter bottle cap can conveniently and quickly seal the filter bottle or can be conveniently and quickly taken out of the filter bottle, the filter bottle cap can be kept relatively stable during disassembly and assembly due to the adoption of the metal filter bottle cap sealing structure, liquid is prevented from overflowing out of the filter bottle, and a filter element or a filter material can be quickly and safely replaced.

The utility model relates to a vertical plug-in type disk device, and aims to solve the technical problems that the weight of the conventional disk device is inconvenient to adjust and the use flexibility is low. The dumbbell piece device comprises a handle, dumbbell pieces and a knob with a limiting rod. Fixing pieces are arranged at the two ends of the handle, and the fixing pieces and the handle form a longitudinal insertion channel through a through hole structure; a through hole and a mounting groove are formed in the center of each disk, longitudinal positioning is achieved through matching of the limiting rod and the through hole, and transverse locking is completed by means of width matching of the limiting face of the knob and the mounting groove. An elastic clamping structure is arranged in the knob, and the positioning protrusions and the positioning holes of the dumbbell pieces are driven by the button to form secondary locking, so that the use stability is ensured. According to the scheme, tool-free quick disassembly and assembly of the dumbbell pieces are supported, multi-gradient weight adjustment is provided, meanwhile, the safety and the operation efficiency are remarkably improved through longitudinal insertion and a double-locking mechanism, and the device is suitable for high-strength training scenes.

The invention belongs to the field of deep sea drilling equipment and technical improved high-end equipment, and particularly provides a deep sea manned submersible electromagnetic locking drill bit replacement mechanism, a drilling machine and an operation method. The lifting device comprises a lifting table, a supporting piece and a clamping part, the supporting piece is fixedly connected with the lifting table, the clamping part is connected with the supporting piece and used for clamping a drill bit assembly of the drilling machine, and the lifting table moves up and down to drive the supporting piece and the clamping part to move synchronously; the drilling machine drill bit fixing device comprises a first limiting part for axially limiting a drilling machine body and a second limiting part for radially limiting the drilling machine body and a drill bit assembly. The electromagnet locking device is used for locking the drill bit assembly and comprises a magnet reciprocating telescopic part and a locking part, and the locking part penetrates through the drilling machine drill bit fixing device to be locked with a drill bit connecting piece of the drill bit assembly. According to the deep sea drill bit replacement device, rapid, automatic and safe drill bit replacement under the unknown deep sea environment is achieved, manpower dependence is reduced, and the advantages of being high in universality, small in size and light in weight are achieved.

The utility model discloses a conveyor belt jacking device capable of safely and quickly replacing a carrier roller of a belt conveyor, which comprises a steel pipe, a support ring, a fastening bolt, a screw rod, an internal thread sleeve, a side support frame, an anti-drop bolt, a height adjusting handle and an anti-drop nut, the support ring is arranged at the upper end of the screw rod, and the thread sleeve is arranged in the middle of the screw rod; a height adjusting handle and an anti-falling nut are sequentially arranged at the lower end of the screw rod; a steel pipe is arranged on an inner hole of the supporting ring; a fastening bolt is arranged on the hole wall of the supporting ring; a side surface support frame is arranged on the outer cylindrical surface of the internal thread sleeve; anti-falling bolts are arranged on the end faces of wing plates of the side face supporting frames; the screw rod and the supporting ring are connected in a matched mode through the right thread. And the screw rod and the internal thread sleeve are matched and connected through the left thread. The device is simple in structure, convenient to carry, easy to operate, reliable in work and capable of safely and rapidly replacing the carrier roller of the belt conveyor.

The present invention discloses a supporting structure for replacing a curtain wall and a method for using the same, belonging to the technical field of curtain walls. The present invention comprises a structure for replacing old stainless steel fixtures of a curtain wall by means of a supporting frame, a supporting fixture, a bracket assembly and other components, thereby solving the problem of temporary fixation of existing curtain walls, allowing the curtain wall body to be quickly and safely fixed and the old fixtures to be replaced, facilitating installation and disassembly, and monitoring the safety status of the curtain wall around the clock, thereby realizing visual management of curtain wall renovation construction, curtain wall health and maintenance.