2078results about How to "Prevent rotation" patented technology

The invention discloses rock crushing and coring equipment for geotechnical engineering investigation, and belongs to the technical field of drilling equipment. The rock crushing and coring equipment for geotechnical engineering investigation comprises a drilling tool, a sampling barrel and a high-pressure water supply device, and further comprises a triggering part, a coring part and a control part, and the triggering part is arranged at the end, away from a drill bit of the drilling tool, of the sampling barrel; a first sliding groove is formed in the water flow reversing part, the high-pressure water supply device communicates with a water outlet in the drill bit through the water flow reversing part, the water flow reversing part communicates with the first sliding groove, and the water flow reversing part is used for communicating the high-pressure water supply device with the first sliding groove when the triggering part is triggered; one end of the sliding sleeve is hermetically and slidably connected into the first sliding groove; the cut-off part is connected with the other end of the sliding sleeve, and when high-pressure water is introduced into the first sliding groove, the sliding sleeve drives the cut-off part to move into the sampling barrel. According to the rock crushing and coring equipment for geotechnical engineering investigation, the drill bit can be cooled by using high-pressure water, the abrasion of the drill bit is reduced, and a rock core is cut off by using the high-pressure water as power, so that the integrity of the obtained rock core can be ensured.

The invention relates to the technical field of ship propellers, and discloses a ship propeller and a control method thereof, and the ship propeller comprises a base, a main rod seat, a steering driving mechanism, a main rod, a lifting driving mechanism, a lifting transmission wheel and a lifting power mechanism. The base is used for being connected with a ship body, the main rod base is rotationally connected with the base, and the steering driving mechanism is fixedly arranged on the base and used for driving the main rod base to rotate relative to the base. The main rod is in sliding connection with the main rod base and can slide in the axial direction of the main rod base relative to the main rod base. The lifting driving mechanism is fixedly arranged on the main rod base and used for driving the main rod to slide relative to the main rod base. The lifting transmission wheel is rotationally arranged on the circumferential face of the main rod base and is in transmission connection with the input end of the lifting driving mechanism. The lifting power mechanism is fixedly arranged on the base, the output end is in transmission connection with the lifting transmission wheel, and the lifting power mechanism is used for providing power for the lifting driving mechanism. According to the propeller, the cable of the lifting power mechanism can be prevented from being wound on the main rod, and the reliability of the propeller can be improved.

The invention discloses an assembly type storage shelf convenient to transport, and belongs to the technical field of transportation storage shelves, the assembly type storage shelf convenient to transport comprises a bottom plate, a plurality of placing plates are sequentially, uniformly and equidistantly arranged at the upper end of the bottom plate from top to bottom, the placing plates are mutually connected through steel wire ropes, and two bidirectional lead screws are symmetrically and rotatably connected to the upper end of the bottom plate; the two bidirectional lead screws are in transmission connection through a belt wheel, a rotating assembly used for driving the bidirectional lead screws to rotate is installed on the bottom plate, two movable blocks are symmetrically connected to the rod walls of the bidirectional lead screws in a threaded mode, and driving rods are hinged to the upper ends of the movable blocks. The defects in the prior art are overcome, the multiple containing plates can be unfolded, stored and stacked through mutual cooperation of the bottom plate, the containing plates, the steel wire rope, the two-way lead screw, the movable block, the driving rod, the motor, the limiting sleeve, the fixing rod and other structures, adjustment can be conducted according to the requirements of goods, operation is easy and convenient, manual labor is reduced, and the working efficiency is improved. Therefore, the applicability of the device is improved.

The utility model provides a fixing plate bending device, and belongs to the technical field of plate machining. The fixing plate bending device comprises a fixing assembly and a material pushing assembly, the fixing assembly comprises a workbench, a groove plate, a lower die, a limiting inserting rod, a first elastic piece and a downward pressing piece, the material pushing assembly comprises a material pushing sliding rod and a second elastic piece, and the second elastic piece is arranged at the bottom of the workbench. By arranging the working table, the groove plate, the lower die, the limiting insertion rod, the first elastic piece and the pressing piece, positioning is conducted in the mode that the lower die and the groove plate are connected in an inserted mode, then the first elastic piece pushes the limiting insertion rod to keep limiting and abutting against the lower die, replacement and installation are completed, disassembly is convenient, the installation mode of multiple bolts is avoided, efficiency is improved, and cost is reduced. And by arranging the material pushing sliding rod and the second elastic piece, the second elastic piece is used for pushing the material pushing sliding rod to move upwards, the bent workpiece can be immediately pushed out, and the feeding and discharging efficiency is greatly improved.

The invention relates to the technical field of crane lifting appliances, in particular to a lifting-angle-adjustable crane hanging bracket which comprises two I-shaped beams, the two I-shaped beams are parallel to each other, the peripheries of the two I-shaped beams are jointly connected with an annular guide block, an annular transfer hanging bracket is rotatably mounted on the periphery of the annular guide block, and the annular transfer hanging bracket is rotatably mounted on the periphery of the annular guide block. And a rotating part is arranged at one end between the two I-shaped beams. The annular transfer hanging bracket is driven by the rotating component to rotate along the periphery of the annular guide block, the angle of goods is adjusted, the flexibility and the use convenience of the lifting appliance are improved, after adjustment is completed, the brake disc is combined with the positioning disc, and under the friction force braking effect between the positioning disc and the brake disc, the goods can be conveyed to the lifting appliance. The connecting sleeve is braked on the periphery of the adjusting shaft rod, the braking effect on the adjusting shaft rod is achieved under the torsion limiting effect of the key groove and the driven key block, unnecessary rotation of the adjusting shaft rod in the using period is avoided, and the stability of cargo lifting can be guaranteed.

The utility model provides a pipeline connector forming die which comprises a base, a die body, a die head and a die body. The middle of the base is provided with an opening. The outer mold is arranged on the upper surface of the base; the plurality of inner petal dies form a cylinder, a through hole is formed in the middle of the cylinder, and the through hole is conical; the multiple inner petal dies are arranged at the opening of the base and can move in a limited mode in the radial direction of the opening so as to be matched with the outer die to achieve forming of the pipeline connector; the inner petal die driving part comprises a cone and two limiting protrusions, the two limiting protrusions are arranged on the two sides of the bottom of the cone respectively, and the limiting protrusions just touch the lower surface of the base when the inner petal die driving part reaches the maximum moving distance so as to prevent the inner petal die driving part from continuing to move; wherein the inner petal die driving part is arranged in the through hole, and the cone is matched with the through hole. According to the utility model, the limiting bulge can be used for preventing the driving part of the inner petal die from moving over position, so that the inner petal die is damaged.

The utility model discloses a municipal guardrail welding positioning tool, which belongs to the field of guardrail welding, and comprises a bracket used for placing a cross rod and a vertical rod, the bracket comprises a cross beam, and two sides of the cross beam are respectively provided with a plurality of support arms used for supporting the cross rod; end plates are arranged at two ends of the cross beam; a rotating shaft is arranged on one side of each end plate; the mounting height of the bracket is greater than the distance between the outer edges of two cross rods of the guardrail; the supports are arranged at the two ends of the bracket, and the rotating shafts are rotationally installed on the supports; the clamps are mounted on the bracket and used for clamping the vertical rods; and the positioning seats are mounted on the supporting arms and are used for supporting and positioning the cross rod. By turning over the bracket, double-sided welding of the guardrail is completed through one-time clamping, the clamping times during guardrail welding are reduced, the labor intensity of operators is reduced, the production efficiency is improved, and meanwhile, the stability and consistency of product quality are ensured.

The present invention discloses a visual inspection device for producing self-adhesive label paper, which relates to the technical field of visual inspection of label paper, and comprises an inspection table and a leveling device, wherein a winding device is arranged on the top of the inspection table, a maintenance frame is fixedly installed on the top of the inspection table, a visual inspection device is fixedly penetrated on the top of the maintenance frame, a driving plate is fixedly installed on the top of the inspection table, a servo motor is fixedly installed on the front side of the driving plate, a placement frame is fixedly installed on the top of the inspection table, a rotating motor is rotatably installed on the rear side of the placement frame, a fill light device is fixedly installed on the output end of the rotating motor, a correction rod moves in a direction close to the label paper to drive the correction frame to move and perform position correction on the label paper to be inspected, and the position correction ensures that the label paper is in a correct and centered position during inspection, thereby improving the accuracy of image capture and further reducing the scrap rate caused by misjudgment.

The utility model belongs to the field of ball valves, and particularly discloses an anti-violent-damage ball valve with a lock, the anti-violent-damage ball valve comprises a ball valve main body, a valve rod, a limiting ring, a rotating cover, a magnetic sliding block and a compression spring, the fixed end of the valve rod extends into the ball valve main body and is connected with a sealing ball in the ball valve main body, and the free end of the valve rod is arranged outside the ball valve main body; the limiting ring sleeves the outer side of the free end of the valve rod and is fixedly connected with the ball valve main body; two limiting tables are symmetrically arranged on the inner wall of the limiting ring by taking the circle center as an original point; the rotary cover sleeves the outer side of the free end of the valve rod and is rotationally connected with the ball valve main body; a containing groove is formed in the lower end of the magnetic sliding block, and the magnetic sliding block is arranged in the rotary cover and can move up and down in the rotary cover; the compression spring is arranged between the magnetic sliding block and the ball valve body. The ball valve limiting switch with the lock can be achieved, meanwhile, the situation that the ball valve body is damaged and fails due to brute force in the locking state can be prevented, and therefore the violent damage prevention effect is achieved.

The utility model relates to the technical field of decoration, and discloses a ceramic tile clamping tool for decoration engineering, which comprises a fixed plate and a support frame, the bottom of the fixed plate is fixedly connected with a motor, an output shaft of the motor penetrates through the top of the fixed plate and is fixedly connected with a gear I, and one side of the gear I is meshed with a gear II; the middle of the second gear is fixedly sleeved with a fixing rod, one end of the fixing rod penetrates through the bottom of the fixing plate to be fixedly connected with a limiting block, a limiting groove is formed in the second gear, a limiting rod is slidably connected into the limiting groove, a sliding groove is formed in the fixing plate, and a connecting plate is slidably connected into the sliding groove. Compared with the prior art, the ceramic tile laying device has the advantages that ceramic tiles can be effectively prevented from shifting or rotating in the laying process, and it is guaranteed that the laid ceramic tiles are neat and uniform; and the height and the position of the ceramic tile can be quickly and accurately adjusted, so that the laying process of the ceramic tile is quicker and more efficient.

The invention discloses automatic milling machining equipment for motor shaft manufacturing, and relates to the technical field of motor shaft machining, the automatic milling machining equipment comprises a machining table and further comprises a fastening device, a U-shaped frame is fixedly installed at the top of the machining table, a servo motor is fixedly installed on the front side of the U-shaped frame, a lead screw is fixedly installed at the output end of the servo motor, and the fastening device is fixedly installed on the top of the machining table. A sliding frame is slidably mounted on the inner wall of the U-shaped frame, the sliding frame is in threaded connection with the lead screw, a V-shaped plate is fixedly mounted on the inner wall of the U-shaped frame, a placing plate is fixedly mounted at the top of the machining table, and the fastening device comprises an electric push rod, a fastening plate, a connecting plate, a connecting rod, a square plate, a connecting spring and a positioning plate. The positioning plate moves to be in contact with the columnar workpiece and extrudes and positions the columnar workpiece, and the position of the columnar workpiece can be effectively controlled through the positioning plate before milling through pre-positioning, so that the size error or the surface unevenness caused by position deviation is avoided.

The utility model discloses a luggage case convenient to use when going out, which comprises a case body, and a plurality of raised lines are arranged on the inner walls of two opposite sides of the case body; the partition plates are connected to the inner side wall of the box body in a sliding mode and divide the interior of the box body into a plurality of storage cavities, the two side edge ends of each partition plate are provided with a plurality of pliers and tweezers mechanisms used for clamping and fixing the protruding strips, and the pliers and tweezers mechanisms clamp and fix the protruding strips on the corresponding sides and limit the sliding positions of the partition plates in the box body; the telescopic insertion plate assemblies are located in the storage cavities and are in sliding connection with the partition plates or the box walls close to the side, and the telescopic insertion plate assemblies are used for partitioning the storage cavities. According to the novel storage box, the storage space and the number of the storage grids can be reasonably divided according to the storage condition, the size and the number of the storage cavities are divided according to the needs of a user, and the storage space and the number of the storage grids can be reasonably divided according to the needs of the user; and the user can better store articles in a classified manner, and the travel convenience is improved.

The utility model discloses a high chromium steel forge piece machining positioning clamping structure which comprises a supporting plate, supporting feet are fixedly installed on the lower surface of the supporting plate, an extending plate is fixedly installed on the outer side surface of the supporting plate, a fixing plate is fixedly installed on the inner side surface of the extending plate, a rotating plate is movably arranged below the fixing plate, and a clamping plate is fixedly installed on the rotating plate. A plurality of sliding grooves are formed in the upper surface of the fixing plate at equal intervals, sliding blocks are slidably connected into the sliding grooves, round rods are fixedly installed on the upper surfaces of the sliding blocks, rolling wheels are rotatably connected to the outer sides of the round rods, and transmission shafts are rotatably connected to one sides of the supporting legs. According to the tool, the forgings can be clamped and positioned through the multiple clamping mechanisms, the cylindrical forgings can be conveniently and accurately fixed to the middle position of the tool, the positioning effect of the cylindrical forgings is improved, and when the cylindrical forgings are rotated, the positions of the contact positions of the clamping mechanisms and the cylindrical forgings can be conveniently adjusted at the same time; and the contact position is exposed for machining, and the angle adjusting effect of the cylindrical forge piece is improved.

The invention discloses a convenient-to-adjust welding workstation for hardware machining, and relates to the technical field of adjusting welding, the convenient-to-adjust welding workstation for hardware machining comprises an equipment frame, a welding mechanism is fixedly mounted on the outer wall of the equipment frame, a first motor is fixedly mounted on the surface of the equipment frame, and the convenient-to-adjust welding workstation for hardware machining further comprises a clamping device; wherein the clamping device comprises a rotating rod, a fixing plate, a rotating pipe, an electric push rod, a clamping plate, a large gear, a second motor, a connecting rod, a circular plate and a small gear, and the rotating rod is fixedly installed at the output end of the first motor. The hardware is fixed in the welding process, the situation that the hardware is damaged due to the fact that the hardware shakes in the welding process and falls off can be prevented, meanwhile, the non-welded side is rotated, the hardware can be adjusted to the optimal position more easily, and unnecessary torsion and stretching are reduced.

The invention discloses surface polishing equipment for a concentration tank for biological medicine and relates to the technical field of polishing equipment, the surface polishing equipment comprises a base and a tank body, a rack is mounted at the top of the base, a translation motor is mounted at the position, away from the rack, of the top of the base, and a lead screw is mounted at the output end of the translation motor; the position, close to the far end, of the outer wall of the lead screw is installed on the top of the base through a bearing seat. According to the surface polishing equipment for the concentration tank for the biological medicine, an inner polishing assembly is fed into the tank body from an inclined tank opening of the tank body through the lifting assembly under the cooperation of the angular position adjusting assembly, and after the inner polishing assembly enters the tank body, an angular position adjusting frame is driven to rotate through an angular position adjusting motor, so that the angular position adjusting frame is in a vertical posture relative to a fixing frame; the inner wall of the tank body can be polished by matching with the rotating assembly and the polishing assembly, so that the space obstruction caused by an eccentric feeding hole position, a central stirring device mounting hole position and the like is overcome, and the type range of the tank body capable of being treated by the equipment is greatly widened.

The invention provides a heat exchange plate based on multi-layer vortex turbulence and anti-channeling curved sealing, which belongs to the technical field of heat exchangers, and mainly comprises a uniform turbulence flow dispersing device, a uniform turbulence flow collecting device, a positioning flow guide device, a multi-layer vortex turbulence device consisting of spoilers and spoiler strips, and an anti-channeling curved sealing device consisting of sealing grooves and sealing strips. The heat exchanger is characterized in that multi-layer vortex and turbulence efficient heat exchange are achieved, movement is prevented, and multi-cutting-edge labyrinth sealing is achieved. Uniform turbulent flow diffusion of fluid is achieved through the uniform turbulent flow diffusion device, multi-layer vortex and turbulent flow movement of the fluid is achieved through the multi-layer vortex turbulence device, uniform turbulent flow gathering and collecting of the fluid are achieved through the uniform turbulent flow collecting device, and positioning of the heat exchange plates and flow guiding of the fluid are achieved through the positioning and flow guiding device. And the relative movement of the heat exchange plates is prevented and multi-cutting-edge labyrinth sealing is realized through the anti-channeling sealing device.

The invention discloses a cleaning agent recycling system, and relates to the technical field of detergent recovery, the cleaning agent recycling system is characterized in that the inner side wall of a filtering tank body is fixedly connected with a ceramic filtering plate, the high-performance ceramic filtering plate is uniformly provided with ultra-micropores, the aperture of the ultra-micropores is less than or equal to 1nm, the top of the ceramic filtering plate is provided with a slope, and the top of the slope is provided with a water inlet. The outer side wall of the filtering tank body is fixedly communicated with a feeding pipe, the feeding pipe is positioned above the ceramic filtering plate, and the bottom of the filtering tank body is fixedly communicated with a return pipe; through cooperative use of the filtering tank body, the ceramic filtering plate, the slope and the feeding pipe, cleaning agent molecules can be accurately screened out conveniently according to the characteristics that the diameter of the cleaning agent molecules is smaller than 1 nm, and the diameter of oil dirt impurities, bacteria and the like cleaned by a cutter is larger than 1 nm, and meanwhile the oil dirt impurities, bacteria and the like are effectively blocked. Therefore, the cleaning agent and the oil dirt impurities can be fully separated, the filtering effect is improved, and the recycling rate of the cleaning agent is increased.

The invention discloses an automatic code spraying device for extra-high voltage capacitor production, and relates to the technical field of capacitor code spraying, the automatic code spraying device comprises a material conveying device and a placing frame, and further comprises a positioning device, a limiting frame is fixedly installed at the top of the placing frame, and a code spraying device is fixedly installed at the top of the limiting frame; an electric push rod fixedly penetrates through the front side of the placing frame, a clamping plate is fixedly installed at the output end of the electric push rod, the positioning device comprises a limiting hole, a detection rod, a bearing hole, a bearing rod, a square frame, a placing hole and a limiting block, and the limiting block moves downwards to make contact with the limiting hole and limit the square frame. The square frame is limited by the limiting block, so that the output end of the electric push rod cannot continuously move in the direction close to the limiting frame, it is ensured that the capacitor shell keeps stable in the code spraying process through proper clamping force, position deviation or vibration is reduced, and therefore the code spraying quality is improved.

The utility model discloses a pressure sensing assembly, a sensor, a heat management system and a vehicle. The pressure sensing assembly comprises a pressure sensing piece, a pressure sensor and a control module, the supporting piece is provided with a main body part and a limiting part, the limiting part is arranged on the main body part, the main body part is suitable for supporting the pressure sensing piece, the limiting part is suitable for being matched with the outer side face of the pressure sensing piece in a limiting mode, and a first edge is limited between the bottom face of the pressure sensing piece and the outer side face of the pressure sensing piece; the first edge is provided with contact points making contact with the main body part or the limiting part, and any contact point does not make contact with the main body part and the limiting part at the same time. In this way, the stress between the supporting piece and the pressure sensing piece can be reduced, and then the pressure sensing piece can be protected.

The invention discloses a wide-adaptability variable-geometry turbine of a variable-cycle aero-engine and a flow adjusting structure of the wide-adaptability variable-geometry turbine of the variable-cycle aero-engine, a turbine guider in the structure is integrally arranged at the upstream position of a turbine rotor and is provided with a plurality of guider blades, each blade is provided with a front cavity and a rear cavity, the cavities are connected with the last stage of an air compressor through an air entraining connector, and the air entraining connector is connected with the tail stage of the air compressor. And high-pressure airflow is guided in. The suction face front airflow nozzle and the pressure face tail airflow nozzle are used for jetting airflow to the main flow channel, the pneumatic blocking effect with the local flow speed reduced is formed, and the throat area and the airflow angle characteristic of the guider are adjusted. The airflow adjusting device comprises a flow adjusting valve and a pressure adjusting valve, the flow and pressure of airflow are controlled, the airflow injection characteristic is accurately adjusted, and the turbine flow and efficiency are optimized. The turbine flow adjusting precision can be effectively improved, the mechanical complexity is reduced, the turbine efficiency is improved, the service life of an engine is prolonged, the requirements under different flight working conditions are met, and the important application value is achieved.

The invention discloses an automatic treatment system for livestock breeding sewage, and relates to the technical field of livestock breeding, the automatic treatment system comprises a machine shell and a separation assembly, a bracket is fixed on one side of the machine shell, and the separation assembly is connected to one side of the machine shell; the separation assembly comprises a motor, a stirring rod, a first synchronous wheel, a synchronous belt, a second synchronous wheel, a filter cartridge and a spiral blade. Sewage can flow into the filter cylinder through the sewage inlet pipe and the adjusting pipe, solid impurities such as excrement in the sewage can be separated through the filter holes in the filter cylinder, waste liquid can flow to the lower portion of the machine shell through the filter cylinder, and the waste liquid can flow to the lower portion of the machine shell after being added with chemicals through the chemical adding pipe on the side portion of the machine shell. A motor is started to enable a stirring rod to quickly mix the waste liquid and the medicine, and in the process, the stirring rod can drive a filter cartridge to rotate through a first synchronous wheel, a synchronous belt and a second synchronous wheel, so that solid impurities can be turned over, and the waste liquid can flow out through the solid impurities at the bottom.

The utility model relates to an internal-spraying and internal-inflow grille decontamination machine which comprises a rack, a water inlet is formed in one side of the rack, the other side, opposite to the water inlet, of the rack is arranged in a closed mode, two opposite conveying chains are rotationally arranged on the rack, a filtering grid belt is arranged between the two conveying chains in a sleeving mode, a pressure cleaning pump is arranged on the rack, and a water inlet is formed in the other side of the rack. The output end of the pressure cleaning pump is connected with a pressure nozzle through a hose. The device has the effect of preventing impurities from blocking the grating.

The utility model discloses a shearing structure capable of solving the problem of hair winding of a cyclone filter device, which comprises the cyclone filter device provided with a filter screen; one end of the dust cup is connected to the cyclone filter device, and the filter screen is located in the dust cup; the cutting part is connected with the outer surface of the filter screen, the cutting part is connected to the dust cup, and when the dust cup and the cyclone filter device are separated and drawn out, the cutting part cuts off hair wound on the filter screen. Compared with the prior art, the dust cup is provided with the cutting part, when the dust cup is detached, the dust cup and the cyclone filtering device are in a relative motion state, the cutting part can cut off hair wound on the cyclone filtering device, the cyclone filtering device does not need to be detached, more convenience is achieved, and the use experience of a user is improved.

The invention relates to a rapid pressing clamp for friction stir spot welding and a using method of the rapid pressing clamp, and relates to the technical field of friction stir spot welding. Comprising a standing working box and a welding platform integrally connected with the top end of the working box, and further comprises a welding base, a welding pressing block, a pneumatic quick pressing mechanism and a limiting mechanism, the limiting mechanism can clamp welding materials of different sizes, the practicability of the quick pressing clamp is effectively improved, the limiting mechanism can fasten a weldment, and the welding efficiency is improved. The weldment is prevented from rotating in the welding process; the pneumatic quick pressing mechanism is responsible for applying preset pressing force in the vertical direction to the weldment so as to ensure the stability of the weldment in the welding process; the design of the welding clamp aims at improving the efficiency of welding operation and the welding quality, and quick clamping and releasing of a weldment are achieved by simplifying the clamping and disassembling processes of the weldment, so that thermal deformation of the weldment in the welding process is reduced, and the production efficiency is improved.

The invention discloses an arc striking device for longitudinal submerged arc welding of a steel pipe, and belongs to the field of steel pipe welding processes, the arc striking device comprises a pipe to be welded and an arc striking pipe, the pipe to be welded and the arc striking pipe are jointly and movably provided with an installation block, and the installation block is provided with a fixing assembly; the fixing assembly comprises a threaded rod rotationally installed on the installation block, and a linkage block is installed on the threaded rod in a threaded mode. According to the scheme, a fixing plate is arranged, a to-be-welded pipe and an arc striking pipe can be fixed through the fixing plate before arc striking, meanwhile, a spring telescopic rod is driven to move through a push rod in the moving process of an extrusion plate, and after the fixing plate is attached to the inner wall of the arc striking pipe, the output end of the spring telescopic rod makes contact with a fixing groove; at the moment, the output end of the spring telescopic rod extends and is inserted into the fixing groove, the piston plate is fixed, namely, the fixing plate is fixed and cannot move, so that the situation that the fixing plate moves in the arc striking process, the arc striking tube deviates, and the arc striking effect is affected is avoided, and the effect of improving the arc striking effect is achieved.

The invention discloses a storage box and a vehicle, and the storage box comprises a box body which is provided with a storage groove; the lifting mechanism is located outside the storage groove and comprises a fixing unit and a lifting unit which are dynamically coupled, the lifting unit ascends and descends relative to the fixing unit in the depth direction of the storage groove, and the fixing unit is installed on the box body and / or the vehicle body; the supporting mechanism is located in the storage groove and comprises a cup holder base connected with the lifting unit and a cup holder assembly installed on the cup holder base and used for supporting a water cup, and the cup holder base comprises a base body, an installation shaft, a bearing part and a bearing shaft sleeve; the limiting mechanism is located outside the storage groove and comprises an unlocking unit and a limiting piece installed on the unlocking unit, and the limiting piece is driven by the unlocking unit to be connected with or separated from the lifting unit; the cup holder assemblies are located at at least two height positions in the storage groove under driving of the lifting unit. When the cup holder assembly is located at a certain height position, the cup holder assembly is locked through connection of the limiting piece and the lifting assembly or is locked through abutting of the lifting unit and the box body.

The invention relates to the technical field of band sawing machines, and particularly discloses a steel plate cutting device for die manufacturing, which comprises a sawing machine, a driving mechanism, a guide mechanism and a locking mechanism, the sawing machine comprises a base, a stand column and a saw frame, the saw frame is arranged on the base through the stand column, a saw blade is arranged on the saw frame, and the driving mechanism is used for circularly rotating the saw blade; the guiding mechanism comprises a guiding seat and guiding wheels, the locking mechanism comprises a guiding rod, a movable frame, a first elastic piece and locking wheels, the guiding rod is arranged on the saw frame, the movable frame is arranged on the guiding rod in a sliding fit mode and connected with the guiding rod through the first elastic piece, the multiple locking wheels are distributed on the movable frame at intervals, and each locking wheel is in sliding fit with the movable frame. The locking wheels are in friction fit with the saw blade, each locking wheel is provided with a first gear, a first tooth groove is formed in the bottom end of the guide rod, and the first tooth groove can be meshed with the first gear; according to the steel plate cutting device for mold manufacturing, the saw blade can be locked when the saw blade is broken, and safety is improved.

The utility model discloses a spiral-flow aerator, which relates to the technical field of aerators, and comprises an aeration cylinder body, the rotating device is rotatably mounted in the aeration cylinder body and rotates under the pushing of gas; the multiple lower cutting assemblies are fixed to the outer side of the rotating device and are used for cutting the bubbles during rotation; the planetary assembly is mounted at the top of the rotating device; the upper dividing piece is detachably fixed to the bottom of the planetary assembly, and the upper dividing piece and the lower dividing assembly are staggered up and down and are opposite in rotation direction; the positioning piece is detachably fixed at the top opening of the aeration cylinder body; through rotation in two directions of the lower cutting assembly and the upper cutting assembly, water can be prevented from rotating in one direction, the situation that bubbles cannot be normally cut along with flowing can be avoided, the bubble cutting and tearing effects are improved, and the dissolved oxygen utilization rate of a mud-water mixture is guaranteed.