89results about How to "Act as a limit fixation" patented technology

The invention discloses a chemical fiber bobbin yarn transferring and placing mechanism, and belongs to the field of chemical fiber conveying and processing machine equipment. A bobbin transferring mechanism is vertically arranged on a fixing support between a bobbin guiding mechanism and a yarn placing mechanism. A discharging material pipe is obliquely downwards arranged on the upper side of thefixing support. The output end of a lifting air cylinder is vertically and fixedly provided with a lifting support. A bobbin transferring rotation rod is vertically and rotationally connected to a rotation rod sleeve. One end of the lower side of a reciprocating rotating plate is fixedly connected with the upper end of the bobbin transferring rotation rod. A bobbin taking mechanism is fixedly arranged at the other end of the lower side of the reciprocating rotation plate. A plurality of bobbin placing circular plates are evenly arranged at the outer end of the upper side of a yarn guiding rotation disc. A plurality of yarn guiding mechanisms are evenly arranged on the upper side of the yarn guiding rotation disc. The bobbin placing circular plates and the yarn guiding mechanism are sequentially arranged in the radial direction of the yarn guiding rotation disc from exterior to interior. The chemical fiber bobbin yarn transferring and placing mechanism is reasonable in structural design, a plurality of chemical fiber bobbin yarns can be continuously transferred and replaced conveniently and efficiently, a plurality of strands of chemical fiber filaments can be stably, accurately and synchronously conveyed, the automation degree is high, and the production and usage requirements are met.

The invention discloses a sewage filtering device capable of facilitating clearing sludge. The sewage filtering device comprises a shell; the shell is internally provided with a filter cartridge; filter holes are formed in the lower surface of the filter cartridge; the lower surface of the filter cartridge is fixedly connected with a first rotating shaft; the outer surface of the first rotating shaft is connected with a bearing in a clamping way; and a first bearing is connected to the lower surface of the inner wall of the shell in a clamping way. According to the sewage filtering device capable of facilitating clearing sludge, the filter cartridge rotates under the matching of a first gear and a second gear, so that sludge residues at the side of the filter cartridge are cleared by a theleft side of a scraping plate; and the sludge residues on the lower surface of the inner wall of the filter cartridge are cleared by the lower surface of the scraping plate, but it is not needed thatthe sludge residues on the inner wall of the filter cartridge are cleared by a worker by using a manual method, so that the time and physical power of the worker are saved, meanwhile, the phenomenonthat hands and clothes of the worker are polluted by the sludge residues is also avoided, convenience is brought for the work of the worker, and the sewage filtering device is beneficial for the workof the worker.

The invention discloses a pretreatment device for water-quality detection. The pretreatment device for the water-quality detection comprises a bottom plate and a test tube, wherein a box body is fixedly connected at the top of the bottom plate, a reagent box is fixedly connected at the top of the bottom plate and located at the bottom of one side of the box body, a protective cover is fixedly connected at the top of one side of the box body, a water tank is fixedly connected on the other side of the box body, a motor is fixedly connected at the bottom of the inner wall of the protective coverthrough a connecting block, a first pulley is fixedly connected at one end of an output shaft of the motor, a support plate is fixedly connected at the top of one side of the inner wall of the protective cover, and a movable shaft is rotationally connected on the front surface of the support plate through a bearing. The invention relates to the technical field of water-quality detection. The pretreatment device for the water-quality detection can filter out impurities contained in wastewater and create favorable conditions for the subsequent water-quality detection, at the same time, certain work intensity for a worker is relieved and a foundation is laid for detection accuracy.

The invention relates to a motor stator punching machining machine. The machine comprises a workbench, a punching device and clamping devices, wherein the punching device is mounted at the upper end of the workbench, the clamping devices are arranged below the punching device, the clamping devices are connected with the workbench in a slide fit mode, and the clamping devices is arranged at equal distance from left to right. According to the motor stator punching machining machine, a multi-stage adjustable design concept is adopted for motor stator punching machining, the stability degree of round steel plate machining is improved, the accuracy of punching points is guaranteed, then the precision of the motor stator punching machining is improved, and meanwhile, a motor stator with the required number of slots can be machined according to requirements due to the fact that spacing of edge punching blocks and stretching and retracting of a second jacking support column are both controllable.

The invention discloses a sewage filtering robot capable of being used for conveniently cleaning sludge. The sewage filtering robot comprises a casing, wherein a filter tube is arranged in the casing;a filter hole is formed in the lower surface of the filter tube; a first rotating shaft is fixedly connected with the lower surface of the filter tube; a bearing is clamped and connected onto the outer surface of the first rotating shaft; the first bearing is clamped and connected onto the lower surface of the inner wall of the casing. The sewage filtering robot capable of being used for conveniently cleaning silt has the advantages that under the matching of a first gear and a second gear, the filter tube rotates, so that the left side surface of a scraping plate is used for cleaning the sludge residue on the side surface of the filter tube; the lower surface of the scraping plate is used for cleaning the sludge residue on the inner wall of the filter tube, the cleaning on the sludge residue on the inner wall of the filter tube by workers by using a manual method is not needed, so that the time and the physical strength of workers can be saved; meanwhile, the hand and the clothes ofworkers can be prevented from getting dirty by the sludge residue; therefore convenience is brought to the work of workers; the work of workers is facilitated.

The invention discloses a quick connector device for a flexible medium-voltage cable. The device comprises a middle socket and two cable terminal plugs, wherein one ends of the two cable terminal plugs are respectively connected to the ends of the two cables, and the other ends of the two cable terminal plugs are detachably connected to the two ends of the middle socket respectively. According tothe quick connector device, through the two cable terminal sockets and the middle socket, a standardized cable connector is achieved, and a connection between a ring main unit and the cable becomes very convenient and efficient; compared with a traditional copper pigtail connection mode, the connection speed of the connector device is increased by tens of times, a problem that the connection efficiency is low in the traditional mode is effectively solved, the on-site rapid connection is realized, the all-weather working environment is adapted, the efficiency of installation and power transmission can be effectively improved, a user complaint rate can be reduced, the connector is normalized, and the device adapts to connections of the cables of different manufacturers and is easy to installand convenient to match.

The invention discloses a sewage filtering method for conveniently cleaning sludge. When sludge residues on the inner wall of a filter cartridge need to be cleaned, a control panel controls a second electric drive pusher to be shortened, the second electric drive pusher drives a second pulley to move leftwards, and the second pulley does not upward extrude first extrusion blocks; at the moment, under the action of a tensile force of second springs, the second springs downwards pull a second transverse plate; the second transverse plate drives a second rotating rod to downward move by a secondbearing, a second rotating shaft and a second gear; a motor and a first gear downward move along with the second transverse plate, the second rotating rod downwards moves and is clamped in a second clamping groove, and the condition that the sludge residues on the inner wall of the filter cartridge by a manual method with the help of workers is avoided, so that time and physical strength of the workers are saved; meanwhile, the phenomenon that hands and clothes of the workers are stained by the sludge residues is avoided, further the convenience is brought for work of the workers and the workof the workers is facilitated.

The invention discloses a tree seedling transplanting fixing frame for green planting of a garden. The tree seedling transplanting fixing frame comprises a telescopic binding tape and an elastic buckle, wherein three groups of connecting boxes are fixedly arranged at the outer surface of one side of the telescopic binding tape at equal intervals; a telescopic fixed leg is fixedly arranged at the outer surface of the lower part of each connecting box; a fixed clamp belt is fixedly arranged at the outer surface of one end of the telescopic binding tape; a fixed buckle is fixedly arranged at theouter surface of the other end of the telescopic binding tape; the inner side of the front part of the fixed clamp tape is provided with eight groups of fixed clamp grooves; the inner side of the front part of the fixed buckle is provided with a first square groove; an extruding plate is fixedly arranged at one side of the fixed buckle; a limiting bolt is movably arranged at the upper part of thefixed buckle; three groups of fixed bolts are fixedly arranged at the inner side of the front part of the telescopic binding tape at same intervals. The tree seedling transplanting fixing frame for green planting of the garden has the advantages that the use length of the fixed frame can be flexibly changed, the fixed caliber can be adjusted, and the labor intensity in installation and fixing is greatly reduced.

The invention discloses a laminated coating cleaning device. The laminated coating cleaning device comprises a bottom plate, wherein a fixed box is fixedly connected to the top of the bottom plate, adrying box communicates with the top of the fixed box by virtue of a connecting seat, bulges are respectively arranged on both sides of the inner wall of the drying box, a film box is movably connected between the inner surfaces of the two bulges, and sliding plates are fixedly connected to both sides of the film box respectively. The laminated coating cleaning device relates to the technical field of cleaning devices. According to the laminated coating cleaning device, the sliding plates on the both sides of the film box are connected with the inner surfaces of the bulges in a sliding mode, so that the film box can be preliminarily limited and fixed, then a rotating sleeve is rotated so as to drive an upper rotating rod and a lower rotating rod to rotate, so that a triangular block is clamped in an upper triangular groove and a lower triangular groove so as to match with the elasticity of a rubber plate to further fix the film box, the film box is conveniently connected and fixed to the drying box, the removal and installation process is simple, the stability is high, and a plurality of partition plates are arranged, so that a plurality of coated pieces can be dried, and the working efficiency is high.

The invention discloses an oil-electric hybrid unmanned aerial vehicle carrying a small laser radar. The unmanned aerial vehicle comprises an unmanned aerial vehicle body and a driving mechanism. Supporting frames are fixedly connected to the two sides of the bottom of the unmanned aerial vehicle body, a small laser radar body is movably connected to the top of the unmanned aerial vehicle body, amounting strip is fixedly connected to the bottom of the small laser radar body, and one side of the mounting strip extends to the exterior of the small laser radar body. The invention relates to thetechnical field of unmanned aerial vehicles. According to the oil-electric hybrid unmanned aerial vehicle carrying the small laser radar, the mounting strip is arranged at the bottom of the small laser radar body, the mounting strip is matched with a sliding groove, through limiting sliding of the limiting groove and the limiting block, the small laser radar body can be preliminarily limited and fixed, and a threaded rod and a rotating sleeve are matched to realize the fastening process of the small laser radar body, so tools are not needed for disassembly, the operation process is simple, anduse is convenient.

A disclosed low-temperature insulation high-temperature superconducting cable high-voltage terminal comprises an insulation pipeline, a mounting sleeve is fixedly connected to the top of the insulation pipeline, and a protection mechanism is arranged on the outer side of the mounting sleeve. According to the low-temperature insulation high-temperature superconducting cable high-voltage terminal, the terminal can be protected through an outer cover after wiring of the terminal, accidental touch by others can be avoided, the top of the outer cover can be blocked through the arrangement of a rubber conical disc and a notch, water flow is prevented from entering the outer cover, the protection effect on the terminal is further improved, water seepage at the joint of the outer wall of a heat shrink tube and the outer wall of an insulating pipeline can be avoided, the heat shrink tube and a single-hole umbrella group can be disassembled and assembled conveniently, the use convenience is improved, a taper sleeve can rotate up and down to drive an ejector rod to slide centripetally or centrifugally at the same time through arrangement of the ejector rod and threaded connection of the taper sleeve and the insulating pipeline, and therefore, the cable joint can be limited and fixed, and the connection stability is improved.

The invention discloses a preparation method of an edible straw and a raw material mixing device, and relate to the technical field of the preparation method of the edible straw and the raw material mixing device. The preparation method comprises the steps of: preparing a first raw material, preparing a second raw material, preparing a third raw material and preparing a fourth raw material, mixing the prepared raw materials through a mixing device to obtain a mixture; adding the obtained mixture into straw extrusion equipment for extrusion molding, performing extruding through a molding die head, and performing cooling and molding to form a straw blank; and cooling and slitting the straw blank, and enabling the straw blank to enter a drying oven through a conveying belt for drying to form the edible straw. The straw can be completely degraded after being used and can also be eaten as food, and environmental pollution is avoided. The raw material mixing efficiency is improved, and the raw materials are mixed more uniformly.

The invention discloses a temporary power distribution cabinet capable of being conveniently maintained. The temporary power distribution cabinet comprises a bottom plate, wherein the left side of theupper surface of the bottom plate is fixedly connected with the same first side plate by virtue of two first electric push rods; the right side of the upper surface of the bottom plate is fixedly connected with the same second side plate by virtue of two second electric push rods; and a power distribution cabinet body is arranged between the first side plate and the second side plate. According to the temporary power distribution cabinet capable of being conveniently maintained, the top of the power distribution cabinet body backwards rotates by 180 degrees around a first rotating shaft, so that the power distribution cabinet body is positioned at a horizontal position. Therefore, the first side plate and the second side plate drive the power distribution cabinet body to move downwards toa lower position by virtue of a first bearing and the first rotating shaft, then electrical apparatus elements in the power distribution cabinet body can be conveniently maintained by workers, and the workers do not need to climb up to maintain the electrical apparatus elements in the power distribution cabinet body by using a ladder, so that convenience is brought to operations of the workers, and the operations of the workers are facilitated.

The invention discloses a cutting steel wire surface treatment device for a semiconductor wafer. The cutting steel wire surface treatment device comprises a device body, a hot air fan, a fixing frame, a supporting plate, a collecting box and third hydraulic telescopic rods, brush rollers are rotationally connected to the position, close to the left side, in the device body, the upper ends of the brush rollers penetrate through the device body to be connected with first rotating shafts, the left first rotating shaft and the right first rotating shaft are connected through a toothed belt, the front first rotating shaft and the rear first rotating shaft on the right side are in meshed connection through first gears, the first gears are arranged on the first rotating shafts in a penetrating mode, and meanwhile the first rotating shaft on the right rear side is connected with a first motor. According to the cutting steel wire surface treatment device for the semiconductor wafer, a cutting steel wire raw material penetrates through the brush rollers, the brush rollers are driven to rotate through the gears, the toothed belt and the first rotating shaft under the action of the first motor, rust removal treatment is conducted on the cutting steel wire raw material through the brush rollers in a mechanical mode, and follow-up surface treatment machining is facilitated, and in addition, flying dust generated in the rust removal process can be sucked into the collecting box under the action of a draught fan and a suction pipe.

The invention discloses a portable medical disinfection device with a detection function and belongs to the technical field of medical disinfection devices. A machine body is included, and a display screen is mounted on a front end surface of the machine body; five operation buttons are mounted at a lower end of the display screen; a protection plate is mounted at a front end of the display screen; number one strip-shaped sliding ways are installed on two sides of the protection plate correspondingly; a strip-shaped groove is arranged in the front end surface of the protection plate; a limiting mechanism is mounted on an inner side of the strip-shaped groove; and a sealing door located on the front end surface of the machine body is installed at the lower end of the protection plate, a handle is installed on the front end surface of the sealing door, a square groove is arranged in a rear end of the sealing door, eight number two strip-shaped sliding ways are installed on the inner sideof the square groove, and storage plates are installed on the inner sides of the two number two strip-shaped sliding ways. The device is simple in structure, convenient to operate, extremely high instability and convenient to move, a service life of the device is prolonged, and a utilization rate is increased.

The invention discloses a damping LED display screen. The damping LED display screen comprises a base, a fixing frame and a display screen, wherein the base and the fixing frame are fixed through a fixing seat, the display screen is arranged in the fixing frame, and a fixing mechanism is arranged between the two ends of the display screen; the fixing mechanism comprises a U-shaped handle, a screwrod and a first spring, wherein the U-shaped handle sleeves the display screen; one side of the screw rod is provided with a locking end, and the screw rod sequentially penetrates through one side ofthe U-shaped handle and the fixing frame so as be fixed to the other side of the U-shaped handle; the first spring sleeves the exterior of the screw rod and is arranged between the locking end and theU-shaped handle; and the fixing seat comprises a positioning column, a pin rod and a third spring, wherein a first groove and a second groove are formed in the positioning column, the pin rod extendsinto the first groove, the third spring sleeves the pin rod, and the third spring is arranged in the second groove. According to the damping LED display screen, the U-shaped handle can play a role oflimiting and fixing on the display screen, and the damping effect is achieved on the display screen through combining the screw rod and the first spring.

The invention discloses a gas tightness detector easy to be observed for production and detection of an engine, which comprises a protective casing, a communication fixing seat, and a slidable drawingplate. The front outer surface of the protective casing is movably mounted with a side pulling cover. The outer surface of the upper end of the side pulling cover is fixedly mounted with an observingwindow. The front outer surface, near the lower portion of the side pulling cover, of the protective casing is fixedly mounted with two sets of fixing pull rings. The non-slip legs are fixedly mounted at four corners of the outer surface of the lower end of the protective casing. A side of the front outer surface, near the observing window, of the protective casing is fixedly mounted with a fixedshutter. Six sets of ventilation slots are equally spaced on the inside of the front portion of the fixed shutter. The gas tightness detector easy to be observed for the production and detection of the engine can make the gas tightness detector has multiple imaging structures, improves measuring precision, avoids misjudgment, saves the labor of the installation and removal operation of measuringcomponents, and improves the sealing performance of a device.

The invention discloses an immersion ship special for an immersed tube tunnel. The immersion ship comprises a gantry box girder; the two ends of the gantry box girder are fixedly connected with hull buoyancy tanks correspondingly, the side wall of the upper end of the gantry box girder is fixedly connected with two symmetrically-arranged hydraulic winches, and the side wall of the upper end of thegantry box girder is fixedly connected with two symmetrically-arranged pulley block hanging brackets; the two pulley block hanging brackets are located on the two sides of the hydraulic winches correspondingly; and the gantry box girder and the side walls of the upper ends of the hull buoyancy tanks are fixedly connected with a plurality of mooring bollards correspondingly, and handrails are fixedly connected to the side walls of the upper ends of the hull buoyancy tanks at the gantry box girder correspondingly. The invention discloses a using method of the immersion ship special for the immersed tube tunnel, immersion of each tube segment needs to be cooperatively operated by two immersion ships, and the immersion ships are arranged at the head end and the tail end of the single tube segment; and the tunnel tube segments can be immersed in inner rivers with the small river width, shallow water, the large flowing speed, dense shipping and the large water level fall, meanwhile the tubesegment immersion period is also shortened greatly, and the butt-joint precision is improved.

The invention provides a method for separating a broken screw in a screw hole. The method comprises the following steps: pouring gel which can be tightly combined with a fracture surface into a screw hole which is above the fracture surface of the broken screw; adding a curing agent to solidify the gel; forming a solid filling section with certain hardness on the fracture surface of the broken screw, so that the filling section has a flat end surface in the solidifying process; establishing a center point on the flat end surface of the filling section, and punching inwards from the center point by virtue of a drill until the drill drills into the fracture surface of the broken screw for a certain depth; entering the front end of a broken screw separating tool into the fracture surface of the broken screw from an open pore; screwing out the broken screw and the filling section above the fracture surface along the thread through the broken screw separating tool. According to the method, the punching difficulty on the fracture surface can be obviously reduced, the risk of drill deviation in the punching process is removed, the open pore is favorably kept at the center point of the fracture surface, and the operation of separating the broken head by using an existing tool is relatively simple and convenient.

The invention discloses a dismountable motor for an axle of an electric vehicle. The dismountable motor comprises an axle frame, axle motors, a pushing barrel and clamping frames, wherein enclosing plates are welded on plate surfaces of the axle frame; the axle motors are supported on the plate surfaces of the axle frame; the number of the provided axle motors is two; the pushing barrel is arranged between the two axle motors; supporting cross bars are welded to the ends of the pushing barrel; the other ends of the supporting cross bars are welded to one surfaces of the enclosing plates; one end face of the pushing barrel is provided with a fastening screw hole; and a pushing screw rod is connected inside the fastening screw hole in a matching manner. The pushing barrel is arranged betweenthe two enclosing plates, and the pushing screw rod in the pushing barrel is screwed to withdraw a pushing block gradually from a positioning groove; while the pushing block is withdrawn, clamping bars on two sides of the pushing block gradually move into the pushing barrel under the elastic effects of first springs; and at the moment, for the axle motors, pushing forces towards docking barrels are missing, thereby facilitating the demounting of the axle motors.

The invention discloses a heat dissipation frame for a new energy automobile motor, and relates to the heat dissipation frame technical field. The heat dissipation frame comprises a first bracket anda control system, the top of the first bracket is movably connected with a second bracket, and a mounting frame is fixedly connected to the bottom of the inner surface of the first bracket. A first square groove is formed in the middle of the interior of the mounting frame, a first rotating shaft is rotatably connected to the bottom of the inner surface of the first square groove, a first heat dissipation fan is fixedly connected to the outer surface of the first rotating shaft, and second square grooves are formed in the mounting frame and at the two sides of the first square groove. According to the heat dissipation frame for the new energy automobile motor, the new energy automobile motor is placed on the mounting frame, the first square groove and the second square grooves are formed in the mounting frame, the first rotating shaft rotates, and through the transmission of a first gear, a second gear and a chain, the first heat dissipation fan and the second heat dissipation fan canbe driven to rotate at the same time, so that the heat dissipation effect of the heat dissipation frame is greatly enhanced.

The invention discloses an automatic paper sheet paging device for teaching. The automatic paper sheet paging device for teaching comprises a machine frame, a paging mechanism and a transporting mechanism, wherein the paging mechanism comprises an operating platform, a rolling module which is arranged on the operating platform and used for enabling paper sheets to move at a uniform speed on the operating platform, and a speed adjusting module which is arranged on the operating platform and used for enabling the paper sheets to move at a variable speed on the operating platform; the transporting mechanism comprises a transporting platform which is connected with the operating platform, wherein the transporting platform comprises a driving pulley and a driven pulley which are located at twoends of the transporting platform, and a conveyor belt which is arranged on the external peripheral walls of the driving pulley and the driven pulley in a sleeving manner; a material collecting assembly which is used for collecting paper sheets is arranged at one end of the transporting platform; a supporting assembly which is used for supporting the transporting platform and the operating platform is arranged at the lower end of the transporting platform; and a control box which is used for controlling the paging mechanism and the transporting mechanism is arranged on the operating platform.The automatic paper sheet paging device for teaching disclosed by the invention is simple in structure, convenient to use and high in paging efficiency, and a paper sheet repeating phenomenon cannotappear.

The invention provides a conductive dust suction pipe capable of being bent bidirectionally. The conductive dust suction pipe comprises a dust suction pipe body, a fixed joint (3), a spring hose (6) and a rotary joint (14). The dust suction pipe body comprises an upper pipe section (1) and a lower pipe section (15). One end of the upper pipe section (1) is a free end; the fixed joint (3) is sleeved in the other end of the upper pipe section (1); one end of the lower pipe section (15) is connected with a dust collector floor brush in a matching mode; and the rotary joint (14) is sleeved in theother end of the lower pipe section (15). A fixed base (4) extending out of the front portion of the fixed joint (3) is clamped between two rotary shaft bases (7) extending out of the front portion ofthe rotary joint (14). The upper pipe section and the lower pipe section of the dust suction pipe are rotationally connected through a rotating shaft, limiting type two-way bending in the range of 0-90 degrees upwards and 0-180 degrees downwards can be realized; the cleaning and dust suction requirements under different situations can be met by conducting limiting type bending deformation on thedust suction pipe; and the operation is convenient and fast, and manpower and material resource consumption is reduced.

The invention relates to the technical field of liquid crystal display screens, and concretely relates to a cholesteric phase color liquid crystal display screen with an ultra-thin glass structure. The display screen comprises a main body mechanism, and a supporting mechanism is connected to the main body mechanism in a matched mode; an adjusting mechanism is rotationally arranged in the supporting mechanism; an abutting mechanism slides in the main body mechanism; and a fixing mechanism is mounted on the main body mechanism in a matched manner. When an operator needs to splice the liquid crystal display screens together, the fixing mechanism can be pressed by hands, so that the two liquid crystal display screens can be conveniently spliced together, the liquid crystal display screens can be conveniently assembled and disassembled while being conveniently spliced and used, and the use efficiency of the liquid crystal display screens can be improved to a certain extent.

The invention discloses a self-leveling fork rack plate, include a rotational adjustment mechanism, cam drive mechanism, sheave drive mechanism, sprocket drive mechanism, screw drive mechanism, spacing adjusting mechanism, load-bearing arm chucking slot, Left Bearing Arm, Right load-bearing arm, A left side of that rotation adjust mechanism is provided with a cam transmission mechanism, the rotation adjusting mechanism is movably connected with the cam transmission mechanism, A sheave transmission mechanism is arrange below that cam transmission mechanism, A load-bearing arm clam groove is arranged on that left side of the sheave transmission mechanism, A low part of that sheave transmission mechanism is provided with a screw transmission mechanism, A sprocket drive mechanism is arranged between the screw drive mechanism and the sheave drive mechanism, a spacing adjusting mechanism is arranged on the left side of the screw drive mechanism, and a left bearing arm and a right bearing armare arranged below the load-bearing arm clamping groove. The invention can realize automatic leveling of the fork plate and improve stability in the carrying process.

A drying and sterilizing device for kitchen utensils comprises a shelf and a water tank, wherein the shelf is matched with the water tank, and also comprises a drying assembly, wherein the drying assembly comprises a blowing assembly and a heating assembly; the air outlet of the blowing assembly is connected with the air inlet of the heating assembly; and the air outlet of the heating assembly isconnected with the air inlet of the shelf. The invention can effectively improve the drying effect and work efficiency on the one hand by arranging a heating component and a blowing component; on theother hand, the invention can effectively remove the bacteria remaining on the surface of kitchen utensils such as chopping boards, knives and the like through high temperature, thereby playing the role of disinfection and sterilization, and effectively ensuring the food safety of people.

The air filtering device comprises a rocking handle, a filter element limiting assembly, a shell, an air filter element, a mounting part, a filter element containing groove, a gear and a rotating ring, the mounting part is fixedly arranged at the top of the shell, one end of the rocking handle rotatably penetrates through the shell to be fixedly connected with the gear, and the gear is meshed with the rotating ring; the rotating ring is rotatably clamped in the shell, a through limiting hole is formed in the side wall of the shell, the filter element limiting assembly slidably penetrates through the limiting hole and is slidably connected with the rotating ring, the filter element containing groove is fixedly connected with the shell, and the rotating ring is rotatably arranged on the outer side of the filter element containing groove in a sleeving mode. And the air filter element is detachably clamped in the filter element placing groove. The invention belongs to the technical field of 3D printers, and particularly relates to an air filtering device of a 3D printer. The air filtering device is installed at an air exchange port of the 3D printer, and an air filter element is convenient to replace.