397 results about "Circular cavity" patented technology

The invention relates to the technical field of mold cooling, and discloses a high-temperature mold rapid cooling device which comprises an upper mold plate and a lower mold plate, an annular runner is arranged between the upper mold plate and the lower mold plate, and a flow guide assembly is arranged in the annular runner; a base is arranged at the bottom of the lower die plate, a circular cavity is formed between the lower die plate and the base, and a scraping assembly is arranged in the circular cavity. A cover plate is placed on the top of the upper mold plate, a drainage pipe is arranged on the right side of the cover plate, a square groove is formed in the top of the upper mold plate, and an assembling assembly is arranged between the cover plate and the base. When the groove-shaped base moves to the receding groove, the scraping plate is separated from the top wall of the stepped groove, after the supporting plate crosses the receding groove, the first spring is compressed, and the scraping plate is attached to the top wall of the stepped groove, so that the scraping plate scrapes on the top wall of the stepped groove, water scale is removed, the heat conduction effect of cooling water and a mold is guaranteed, water scale accumulation is restrained, and the service life of the mold is prolonged. And the cooling efficiency is ensured.

The invention provides a low-torque hydraulic balance ball valve, which relates to the technical field of valves, and comprises a valve body, a circular cavity is arranged in the valve body, a rotating shaft is arranged on the valve body in a penetrating manner, a valve core is arranged in the circular cavity, the rotating shaft is connected with the valve core, the valve body is also provided with a connecting channel, and the inlet end of the valve body is connected with the circular cavity through the connecting channel in a penetrating manner; a connecting hole is formed in the valve element, the valve element is communicated with the circular cavity through the connecting hole, a driving rod is arranged in the connecting channel, a stable sealing device is further arranged in the valve body, the driving rod is used for driving the stable sealing device, and the stable sealing device is used for enhancing the sealing effect of the rotating shaft and the circular cavity. The stable sealing device is arranged, the sealing action and the hydraulic balance process are synchronously carried out, an additional power source is not needed, the sealing effect of the rotating shaft and the circular cavity is synchronously enhanced in the hydraulic balance process, and dual optimization of torque reduction and leakage prevention is achieved.

The utility model provides a surface treatment polishing device for mobile toilet roof processing, which comprises a motor, a turntable, a small polishing head and a polishing piece, the output end of the motor is fixedly provided with the turntable, the outer end of the turntable is provided with a connector, and a round cavity is arranged between the connector and the turntable; an electromagnetic driver is detachably and fixedly mounted in the circular cavity, and a small polishing head is detachably and fixedly mounted on the electromagnetic driver; a polishing piece is detachably and fixedly installed on the connector, and a hole is formed in the surface of the polishing piece in a penetrating mode. The small polishing head is positioned in the hole; by means of the overall arrangement, in the using process, the surface of the roof of the mobile toilet can be polished in a large area, and concave positions and convex positions on the surface of the roof of the mobile toilet can be polished under the condition that no equipment is replaced; therefore, the polishing quality of the roof surface of the mobile toilet is guaranteed, and the whole mobile toilet is more convenient and flexible.

A multifunctional integrated interface for on-orbit assembly of modular space facilities belongs to the technical field of aerospace. A support structure is connected between an upper cover plate and a fixed base and constitutes a circular cavity structure, a driving ring is drivingly connected with a pin ring and can drive the pin ring to move up and down, the pin ring is used for realizing alignment positioning of the interface, the driving ring and the fixed ring are matched through a coupling pin and can drive a coupling ring to move up and down, the coupling ring is used for realizing locking function of the interface, a rotary base is drivingly connected with the driving ring at a lower end, a plurality of electric heating components are connected with the rotary base at an upper end and pass through the fixed ring, the driving ring drives the plurality of electric heating components to move up and down through the rotary base, and the plurality of electric heating components are used for realizing data transmission and power transmission function in cooperation with a counter interface. The interface has mechanical locking, data transmission, power transmission and heat exchange functions, and can meet on-orbit working requirements of the modular space structure.

The invention discloses a bionic cross plate tubular pile with the outer wall imitating snake scales, the inner wall imitating tree roots and the bottom end imitating tooth roots and a manufacturing method of the bionic cross plate tubular pile. The bionic cross plate tubular pile comprises a cylindrical tubular pile body, cross plates and tooth root imitating structures. The outer wall of the cylindrical pipe pile is provided with a plurality of snake-scale-imitated protruding structures, and the inner wall of the cylindrical pipe pile is provided with a plurality of tree-root-imitated protruding structures. The cross plate is arranged in the cylindrical pipe pile and divides a circular cavity in the cylindrical pipe pile into four first fan-shaped cavities; the tooth root imitating structure is arranged at the bottom end of the cylindrical pipe pile. According to the invention, the inertia moment of the pile body, the pile end resistance, the pile side friction resistance and the pulling resistance are synergistically enhanced through multiple bionic designs, so that the comprehensive bearing capacity of the tubular pile under the combined action of vertical and horizontal loads is remarkably improved, and a novel solution is provided for pile foundation engineering under complex load and geological conditions.

The invention discloses a multifunctional integrated interface for on-orbit assembly of modular space facilities, and belongs to the technical field of aerospace. The upper cover plate and the fixed base are connected through a supporting structure to form a circular cavity structure, the driving ring is in driving connection with the pin ring and can drive the pin ring to move up and down, the pin ring is used for achieving alignment positioning of a connector, and the driving ring and the fixed ring are matched through the coupling pin to drive the coupling ring to move up and down. The coupling ring is used for achieving the locking function of the interface, the lower end of the rotating base is in driving connection with the driving ring, the upper end of the rotating base penetrates through the fixing ring and is connected with the electric heating assemblies, the driving ring drives the electric heating assemblies to move up and down through the rotating base, and the electric heating assemblies are used for being matched with the interface on the opposite side to achieve data transmission and power transmission functions. The interface provided by the invention has the functions of mechanical locking, data transmission, power transmission and heat exchange at the same time, and can meet the on-orbit working requirement of a modular space structure.

The utility model discloses a power distribution network fault detection device, and belongs to the technical field of power detection. The device mainly comprises a box body; the detection assembly and the limiting assembly are arranged in the box body; the tensioning assembly is arranged in the box body; the contraction assembly is installed in the box body, the contraction assembly comprises at least two sets of installation frames, the installation frames are installed in the box body, winding boxes are installed on the installation frames, and round cavities are formed in the winding boxes; the fixed rod is mounted in the winding box; the rolling wheel is rotationally mounted on the fixing rod; the ratchet wheel is mounted on one side of the rolling wheel; the coil spring is arranged on the fixing rod in a sleeving mode, one end of the coil spring is connected to the fixing rod, and the other end of the coil spring is connected to the ratchet wheel. According to the power distribution network fault detection device, through the contraction assembly, the wire harness can be automatically contracted when contracted, so that the winding time is shortened, and the effect of automatically winding the wire harness is achieved.

The invention relates to the technical field of filtering equipment, in particular to an air filter and a vacuum pump with the same. The air filter comprises a fixed shell, a filter element assembly, a quick-release upper cover, a quick-locking assembly and an unlocking circular ring, the fixed shell comprises a hollow cylinder, an air inlet side pipe, an air outlet lower pipe, an annular convex edge and a guide lock groove; the filter element assembly comprises a bottom circular ring, a top circular ring, an inner filter ring, a middle filter ring and an outer filter ring; the quick-release upper cover comprises an upper cover body, an upper cover circular cavity, an upper annular groove, a contact disc and a lower annular groove. The quick lock assembly slides into the corresponding guide lock groove to lock the quick release upper cover; the unlocking ring comprises an unlocking ring body, an unlocking ring groove and an active inclined face. According to the air filter provided by the invention, layer-by-layer filtration from coarse to fine can be realized through the three layers of filter rings of the filter element assembly; the filter element assembly and the quick-release upper cover can be conveniently detached. The utility model further discloses a vacuum pump with the air filter.

The invention discloses a device and method for measuring the coaxiality of multiple circular cavities of a ceramic packaging shell, and belongs to the technical field of ceramic packaging shell production. The device comprises a test bench, the upper side of the test bench is fixedly connected with a constant-temperature fixing bench, the upper side of the constant-temperature fixing bench is provided with a clamping assembly, the upper side of the test bench is fixedly connected with a support, and a motor is fixedly connected in the support. In the process of measuring the coaxiality of the multiple circular cavities of the ceramic packaging shell, the motor is started to drive the measuring camera to rotate, the inner circular cavities of the ceramic packaging shell can be shot, in the process, the measuring camera can intermittently rotate back and forth, the shooting angle of the measuring camera can be changed, and the coaxiality of the multiple circular cavities of the ceramic packaging shell can be measured. In addition, due to the fact that the measuring camera is in the rotating state, the adverse effect of the inner circular bead of the cavity on normal shooting can be reduced, and then the shooting effect can be greatly improved.

The invention relates to the technical field of injection molds, in particular to an automatic ejection mechanism for an injection mold, which comprises a base, a supporting plate and a mounting plate are fixedly connected to the upper end of the base in front-back symmetry, a fixed mold seat is fixedly mounted at the upper end of the mounting plate, and guide columns are fixedly connected to the side, provided with a mold cavity, of the fixed mold seat in left-right symmetry; the ends, away from the fixed mold base, of the guide columns are fixedly connected with the supporting plate, the multiple guide columns are sleeved with a movable mold base in a front-back sliding mode, a hydraulic driving assembly is fixedly installed on the supporting plate, and the end of an inner rod of the hydraulic driving assembly is fixedly connected with the movable mold base. The mold has the beneficial effects that the movable mold base and the fixed mold base are opened, the driving mechanism drives the air guide assembly to move backwards, the sealing head slides into the circular cavity from the air outlet hole, an air outlet in the end of the telescopic air pipeline is separated from the inner wall of the circular cavity, and meanwhile the driving mechanism drives the air conveying mechanism to operate; and the gas transmission mechanism introduces gas into the gas guide assembly.

The invention discloses a transport device for plum processing, and belongs to the technical field of fruit processing. A conveying device for plum processing comprises a device body, the upper end of the device body is connected with a first conveying belt, the upper side surface of one end of the first conveying belt is connected with a plurality of guide channels, and a circular cavity is formed through cooperation of a storage groove and a circular groove, so that independent fixation of single plums is achieved; friction and collision caused by jolting during transportation are avoided, so that the breakage rate during long-distance transportation is reduced, the requirement of subsequent processing on fruit integrity is effectively guaranteed, fruit percolate can be quickly guided out through the leakage holes of the storage cavity, juice is directionally guided into the collection cavity through the inclined flowing grooves, and the situation that the juice is retained to breed molds is avoided; meanwhile, an air convection channel is formed by penetrating through the ventilation cavity of the storage frame body, and is matched with an interlayer gap during stacking, so that the internal humidity of the cavity is remarkably reduced, heat accumulation generated by fruit respiration is inhibited, and the mildew rate of plums is further reduced.

The utility model discloses a self-adaptive clamping and positioning device for a wafer expanding ring. The self-adaptive clamping and positioning device comprises a positioning and clamping seat, a bearing part and a floating pressing strip, the bearing part is fixed at the bottom of the positioning and clamping seat and is used for supporting the wafer expanding ring; the top of the positioning clamping seat is provided with a semi-annular structure matched with the wafer expanding ring. The floating pressing strip is of a semi-annular structure matched with the wafer expanding ring and is detachably installed on the positioning clamping base through a front face clamping structure and a side face clamping structure. When the floating pressing strip is installed in place, a circular cavity for placing the wafer expanding ring can be formed between the floating pressing strip and the positioning clamping seat. The wafer expanding ring positioning and clamping device conveniently and reliably solves the positioning and clamping problems of the wafer expanding ring, effectively assists production in the fields of micro electronic elements, semiconductor chips and the like, can be suitable for most of wafer expanding rings, and is wide in application range and small in limitation.

This invention discloses a device for thoroughly mixing sludge and raw coal, relating to the field of raw coal processing technology. It includes a U-shaped frame plate, with a left support plate fixedly connected to the upper surface of the U-shaped frame plate near the left side wall. A circular cavity column is fixedly connected to the inner side of the right side wall of the U-shaped frame plate, and an arc-shaped sliding groove is formed on the right side wall of the U-shaped frame plate. The mixing mechanism of this invention, through the collaborative operation of hollow plates, transverse partitions, and perforations, utilizes the high-speed flow of sludge within a continuous S-shaped channel cavity to successfully achieve top-to-bottom sprinkling of raw coal placed between multiple hollow plates, thereby achieving thorough mixing of sludge and raw coal. The hollow plates divide the raw coal into multiple narrow areas, allowing for more thorough sprinkling of the sludge onto the raw coal, avoiding dead zones during the sprinkling process, and greatly improving the mixing efficiency of sludge and raw coal. Furthermore, the mechanism is ingeniously designed, has low manufacturing costs, and is conducive to widespread application.

The utility model belongs to the technical field of building curtain walls, and discloses a building aluminum alloy curtain wall which comprises a supporting frame, long grooves are formed in the two sides of the interior of the supporting frame, the number of the long grooves is two, and baffles are fixedly installed at the top ends and the bottom ends of the interiors of the two long grooves. A glass body located in the long groove is movably installed between the baffles, and circular cavities are formed in the two sides of the top end and the bottom end in the supporting frame correspondingly. Through the arrangement of the circular cavity, the threaded rods, the nuts, the cylinders and the suction cups, when the glass body is installed in the long groove, an operator movably sleeves the glass body through the two threaded rods, and meanwhile the nuts are connected to the two ends of the threaded rods in a threaded and sleeving mode for locking, so that the glass body is preliminarily fixed; at the moment, due to the arrangement of the cylinders and the suction cups, the two sides of the glass body are adsorbed and fixed, and therefore the fixing enhancing effect is achieved.

The application relates to the technical field of filtering equipment, in particular to an air filter and a vacuum pump with the same. The air filter comprises a fixed shell, a filter core assembly, a quick-release upper cover, a quick-lock assembly, an unlocking ring, the fixed shell comprises a hollow cylinder, an air inlet side pipe, an air outlet lower pipe, an annular convex edge and a guide lock groove, the filter core assembly comprises a bottom ring, a top ring, an inner filter ring, a middle filter ring and an outer filter ring, the quick-release upper cover comprises an upper cover body, an upper cover circular cavity, an upper ring groove, a contact disc and a lower ring groove, the quick-lock assembly is slid into the corresponding guide lock groove to realize the locking of the quick-release upper cover, and the unlocking ring comprises an unlocking ring body, an unlocking ring groove and a driving inclined surface. The air filter can realize layer-by-layer filtering from coarse to fine through the three-layer filter rings of the filter core assembly, and the filter core assembly and the quick-release upper cover can be conveniently disassembled. The application further discloses the vacuum pump with the air filter.

A kind of manual device for identifying tape winding harness, including base frame, which is provided with an open circular cavity, a rotating wheel is rolling fitted in the open circular cavity, and an open slot extending to the center of the circle is arranged on the circumference of the rotating wheel;The follow-up mechanism includes a positioning block, support arms and support plates are arranged on both sides of the positioning block respectively, the support arms and / or support plates are used to support the identification tape reel, the support plate is connected with the heart shaft of the rotating wheel and rotates synchronously with the rotating wheel;The guide mechanism includes a first guide rod and a rotating compression block, the first guide rod is arranged above the positioning block and installed on the support arm and / or support plate, the rotating compression block is arranged between the first guide rod and the positioning block, a hinge shaft is fixed circumferentially in the rotating compression block and the rotating compression block is hinged on the support arm and / or support plate.

The invention discloses a single-tube floating type fluid connector which is characterized in that a containing circular cavity, an opening and a circular hole are formed in a mounting seat; the adapter tube is arranged on the mounting seat in a penetrating manner, can axially displace, radially displace and rotationally displace in the accommodating circular cavity, and is provided with a mounting boss and a limiting piece; the floating seat is arranged on the adapter in a sleeving manner, an adjusting gap is reserved between the mounting boss and the floating seat, an elastic washer is arranged in the adjusting gap, an axial gap and a radial gap are reserved between the floating seat and the mounting seat, and a guide sleeve is arranged on the floating seat; the elastic connecting piece is positioned in the mounting seat and is respectively connected with the mounting seat and the floating seat; according to the single-pipe floating type fluid connector, the mounting base, the floating base and the adapter pipe are installed in a matched mode, two times of eccentricity compensation is carried out, and the fixed pipe and the adapter pipe are more convenient and smoother to joint.

The invention discloses a conveying device with an intelligent lubricating function, and relates to the technical field of conveying devices, the conveying device comprises a rack, a rotating roller, a conveying motor, a conveying belt, a supporting frame, a fixing rod and a supporting roller, and further comprises a lubricating mechanism and an injection mechanism. A lubricating mechanism, an injection mechanism and an infrared temperature sensor are arranged to monitor a conveying device, when it is found that the temperature of a supporting roller on the conveying device is high, a first motor operates to drive a storage box to move to one end of the heating supporting roller, and a rotating plate automatically opens a feeding opening in one end of a fixing rod; a second motor runs to drive an injection barrel to be inserted into a feeding opening, lubricating oil in a storage box is injected into a circular cavity, the lubricating oil automatically flows to the position between a fixing rod and a supporting roller, meanwhile, the lubricating oil flows to the outer wall of the supporting roller through a discharging hole, and lubricating operation is conducted between the supporting roller and the conveying belt; according to the design, the conveying device can be conveniently monitored in real time, and lubricating oil is automatically added to the supporting rollers.

The utility model discloses a water-cooled mold for metal powder injection molding, which comprises a supporting bottom plate, the top of the supporting bottom plate is fixedly connected with a supporting seat, and the top of the supporting seat is fixedly connected with a lower mold seat. Water is injected into a spiral water passing round cavity through a water inlet pipe, cold water is introduced into a lower mold base through the spiral water passing round cavity for preheating, and preheated water enters a heat preservation pipe through a first water drainage pipe and enters a communicating water cavity through a water passing pipe for mold cooling treatment; cooling water in the communicating water cavity is led into the centralized cooling cavity through the vertical water passing round cavities, and water cooling treatment is conducted on a workpiece in the lower die base.

The invention relates to the technical field of powder metallurgy, and discloses a friction plate composite pressing die which comprises a lower die assembly and an upper die assembly, and a middle die assembly is arranged between the lower die assembly and the upper die assembly. The lower die assembly comprises a lower die table, a circular cavity is formed in the lower die table, a liftable supporting die plate is connected into the circular cavity in a sleeved mode, a core column is inserted into the supporting die plate in a sleeved mode, and the core column is fixed to the bottom of the circular cavity. The upper die assembly comprises an upper die pressing table and a pressing ring inserted into the upper die pressing table in a sleeved mode. The pressing ring is connected with a high-low switching mechanism. The upper die pressing table is fixed to the upper die base, the middle die assembly comprises an outer ring, an inner cylinder and a connecting mechanism connecting the outer ring and the inner cylinder which are coaxially arranged, the outer ring is provided with a driving mechanism driving the outer ring to move horizontally, the inner wall of the outer ring and the outer wall of the inner cylinder form a middle die cavity, and the middle die cavity and the pressing ring are arranged in a matched mode. Through secondary pressing, tight combination of the powder metallurgy base body and the friction part is achieved, and the problems that a traditional technology is low in combination strength and poor in production efficiency are solved.

The utility model discloses a thermal expansion coefficient testing device for an adhesive product, and belongs to the technical field of thermal expansion coefficient testing. Comprising a temperature control cavity, a placement groove is formed in the temperature control cavity, rotating grooves are symmetrically formed in the placement groove, air outlet cylinders are rotatably connected to the interiors of the rotating grooves, the front ends of the air outlet cylinders penetrate to the front surface of the temperature control cavity and are fixedly connected with transmission teeth, and a rotating rod is fixedly connected to the front surface of the temperature control cavity. The outer side wall of the rotating rod is fixedly connected with a cam, and the outer side wall of the cam is fixedly connected with a rack. The motor drives the rotating rod to rotate, the blowing fan blades promote air to flow in the blowing cavity, the heating device heats the air, and accurate regulation and control of the air temperature can be achieved. An air inlet column of the air outlet cylinder is connected with an air inlet cavity, a rotating ring on the air inlet column is matched with an air inlet cavity circular groove to guarantee sealing performance, and hot air is stably conveyed to the air outlet cylinder. And a plurality of air outlets are formed in the rotating circular cavity of the air outlet cylinder, so that hot air can be uniformly blown out.

The invention discloses a cutting device for steel screen production and manufacturing, which belongs to the technical field of steel screen processing and comprises a rack, a cutting roller, an abutting roller, a circular blade, a cutting groove, a circular cavity, filter screen holes, a first air guide pipe, a first spray head and an air guide mechanism. Through the design of a circular cavity, filter screen holes, a first air guide pipe, a first spray head and an air guide mechanism, chippings in a cutting groove are cleaned in time, additional abrasion caused by chipping interference in the cutting process of a circular blade is reduced through the design, the circular blade can be kept in a sharper cutting state all the time, and the cutting efficiency is improved. And meanwhile, through the design of a second air guide pipe and a second spray head, the cutting groove can be cooled, attached chippings can be blown to loosen, the treatment efficiency of the chippings in the cutting groove by the first air guide pipe is further improved, and the cutting effect is comprehensively guaranteed.

The invention relates to the technical field of adjusting valves, in particular to a pneumatic low-temperature adjusting valve which comprises a valve body, a valve seat is arranged in an inner cavity of the valve body, a valve rod is movably connected to the upper end of the inner cavity of the valve body in an inserted mode, a valve element is arranged at the lower end of the valve rod, and a pneumatic executing mechanism for adjusting opening and closing of the valve seat is installed above the valve body. The valve rod is sequentially sleeved with a valve cover, a connecting base and a sealing upper cover from bottom to top, a supporting frame is fixedly installed at the upper end of the sealing upper cover, the upper end of the supporting frame is fixedly connected with the lower end of a pneumatic executing mechanism, and a pneumatic lifting rod is installed at the lower end of the pneumatic executing mechanism in an up-down sliding mode. The hydraulic regulating valve has the beneficial effects that when the regulating valve needs to be closed, the pneumatic lifting rod moves downwards through the pneumatic executing mechanism, the valve rod drives the piston and the valve element to move downwards, and the fluid sealing element at the lower end of the valve element is connected with the circular cavity of the valve seat in a sealed and inserted mode; and when the piston slides downwards along the piston cavity, gas in the piston cavity is introduced into the first gas guide hole.

The utility model relates to the technical field of electronic equipment, in particular to a shockproof support for electronic equipment, which comprises a mounting plate and an electronic equipment body arranged below the mounting plate, and further comprises a supporting rod arranged on the rear side of the electronic equipment body, and the lower end of the supporting rod is fixedly connected with the rear side of the electronic equipment body through a mounting connecting piece. The electronic equipment body is connected with the mounting plate. A plurality of circular cavities are formed in the mounting plate, and circular holes are formed in the lower sides of the circular cavities; the anti-vibration mechanism comprises an anti-vibration unit and a connecting rod, the anti-vibration unit is arranged in the circular cavity, and the connecting rod is rotationally arranged between the anti-vibration unit and the supporting rod and used for providing an anti-vibration effect for the electronic equipment body; the shockproof mechanism can provide a shockproof effect for the electronic equipment body from multiple directions. According to the utility model, the shockproof effect can be provided for the electronic equipment body in multiple directions, the shockproof effect is excellent, and the service life of the electronic equipment body is prolonged.

This invention discloses a dripper and drip irrigation system for drip irrigation, including a dripper body and an adjusting shaft. The dripper body contains a circular cavity with an inlet at its front end and an opening at its rear end. The adjusting shaft passes through the opening and is placed within the cavity. A locking structure is provided between the cavity and the adjusting shaft, which engages the adjusting shaft, allowing it to rotate around a plane perpendicular to its own axis. The hollow cavity inside the inlet is cylindrical, and the axis of the cylindrical cavity coincides with the axis of the adjusting shaft. Because the shaft rotates vertically and does not move back and forth, the overlapping area of ​​the first and second grooves gradually increases with the rotation of the adjusting shaft, achieving fine adjustment of the water flow. This solves the problem of excessive adjustment range in existing drippers using a threaded method.

The utility model relates to the technical field of power construction, in particular to a cable traction device. The cable traction device comprises a base, a guide assembly is arranged on one side of the input end of the top of the base, when a cable is pulled, the cable sequentially penetrates through a circular cavity formed by a plurality of arc-shaped blocks and an empty groove formed between a transmission roller and a driven roller, a motor is started to drive a transmission rod to rotate, and then the transmission rod drives the transmission roller to rotate. The driven roller is driven to rotate through the friction force between the transmission roller and the cable, so that the cable is pulled, when a small-diameter cable is pulled, the lifting assembly pushes the adjusting frame to move downwards, the driven roller is driven to move downwards, and the distance between the transmission roller and the driven roller is shortened, and when a large-diameter cable is pulled, the lifting assembly pulls the adjusting frame to move upwards, and the driven roller is driven to move upwards. And the distance between the driving roller and the driven roller is increased, and the distance between the driving roller and the driven roller is changed, so that the device is suitable for cables with different diameters, and the application range is enlarged.

An antioxidant granulating device relates to the field of antioxidant preparation and comprises a base, a screw extruder and a power source, an extrusion end is arranged on the right end face of the screw extruder, a partition plate is fixedly mounted on the base, a conversion disc is rotatably connected to an extension portion of the upper end face of the partition plate, a plurality of mounting circular cavities are distributed in the conversion disc, and the mounting circular cavities are communicated with the screw extruder. The extrusion end is provided with a plurality of circular mounting cavities, each circular mounting cavity can be communicated with the extrusion end, and a shaping tray is slidably mounted in each circular mounting cavity. The shaping trays are switched by rotating the conversion disc, so that the bottom ends of the shaping trays can be embedded into the inner cavity defined by the convex part of the extrusion end to form tight connection; and meanwhile, a part of the surface of the shaping tray protrudes outwards, so that extruded raw materials can be conveniently cut into particles, the raw materials can fully pass through the through holes of the shaping tray when being extruded, and the raw materials are effectively prevented from overflowing from the edge.

This invention relates to the field of integrated circuit manufacturing, specifically disclosing a semiconductor photoelectric level sensor, its fabrication method, and its application. The sensor is a sheet-like structure comprising: a substrate including multiple photodiodes evenly distributed on a ring with a first circular axis perpendicular to the substrate as its axis of symmetry; a circular cavity located on the substrate, perpendicularly corresponding to the ring formed by the multiple photodiodes, and containing a rollable microgravity sphere; and a first signal light guide located on the circular cavity, also circular in shape and perpendicularly corresponding to the cavity, for vertically guiding actively irradiated circular signal light into the cavity. This invention utilizes the lowest point of the circular cavity where the rollable microgravity sphere can freely roll under gravity, and simultaneously guides actively irradiated circular signal light vertically into the cavity, with the multiple photodiodes accurately sensing the precise angular position of the rollable microgravity sphere.

The invention discloses a continuous dehydrator for printing and dyeing chemical fiber cloth, and relates to the technical field of cloth dehydration, the continuous dehydrator comprises a dehydration box, the interior of the dehydration box is in a circular cavity shape, and communicated inlets and outlets are formed in the two sides of the dehydration box; the dehydration assembly comprises auxiliary dehydration assemblies distributed on the upper side and the lower side of the inlet and outlet in a central symmetry mode and a main dehydration assembly arranged in the middle of the dehydration box; the drainage pipe is fixedly arranged at the bottom of the dehydration box, so that liquid accumulated in the dehydration box is discharged from the drainage pipe. The main dewatering assembly is arranged in the middle of the circular cavity of the dewatering box, cloth can be continuously dewatered in the conveying process, meanwhile, auxiliary dewatering assemblies arranged on the upper side and the lower side of the main dewatering assembly in a central symmetry mode are matched, printing and dyeing chemical fiber cloth is subjected to multiple times of dewatering operation in the continuous penetrating process, the dewatering effect is improved, and the dewatering efficiency is improved. Meanwhile, the dehydration efficiency is improved.

The invention discloses an anti-jamming whistle, and belongs to the technical field of kinematics and acoustics, the anti-jamming whistle comprises a whistle body, the whistle body comprises a whistle cover plate and a lower cavity, the whistle cover plate is arranged on one side of the lower cavity, the lower cavity comprises a whistle body, a whistle tongue and a whistle tail, and the outer side of the whistle body is fixedly connected to one end of the whistle tongue. According to the invention, the whistle balls automatically avoid the clamping stagnation position of the air outlet during movement, so that the ball clamping phenomenon caused by outward exhaust force generated by the air outlet in the movement track of the traditional perfect circle cavity is fundamentally eliminated, the risk of dumb whistles is completely eradicated, and the whistle balls with different sizes are allowed to be used in the same whistle cavity; the whistle adopts a high-frequency automatic melting full-sealing and dead-corner-free welding method, the air leakage problem of a traditional whistle is solved, the whistle sound stability is enhanced, meanwhile, the whistle ball adopts a natural log material, and the outer surface of the whistle ball is coated with a hydrophobic and oleophobic coating, so that the whistle ball is more environment-friendly. And the rolling resistance and the viscosity can be effectively reduced.