32results about How to "Tight and stable" patented technology

The invention relates to an adjusting device, and discloses a jacking device for adjusting a projector. The jacking device is installed on a wall, and comprises an extension rod; a chute is formed in the wall; a chute fixed in the wall is formed above the extension rod; a slide block is slidingly connected into the chute; the extension rod is fixedly connected to the slide block; a support plate is slidingly connected between two side walls of the chute; the extension rod penetrates through the support plate, and is in clearance fit with the support plate; a base is arranged below the support plate, and is slidingly connected to the side wall of the chute; the base is hinged with a connecting rod; the connecting rod is hinged with a linkage rod; the linkage rod is hinged with a top block; and the top block penetrates through the support plate, and is slidingly connected to the support plate. The jacking device further comprises a push rod; the push rod is hinged with a connection rod; and the connection rod, the connecting rod and the linkage rod are connected through the same hinge. Compared with the prior art, the jacking device can enable images formed by the projector to become more coordinating through left-right movement of the slide block.

The invention provides an integrated sweeping device for a supporting insulator of a transformer substation. The integrated sweeping device comprises a clamping mechanism, a vertical telescopic mechanism and a sweeping mechanism, wherein the clamping mechanism comprises an upper embracing arm, a lower embracing arm and a clamping piece, the clamping piece comprises a first clamping piece and a second clamping piece, the first clamping piece is arranged on the upper s embracing arm, and the second clamping piece is arranged on the lower embracing arm; the vertical telescopic mechanism compriseselectric push rods which are connected with the upper embracing arm and the lower embracing arm, the sweeping mechanism comprises a brush, an air blowing device and a spraying device, an annular guide rail is arranged at the upper end of the upper embracing arm, an electric vehicle is arranged on the annular guide rail, and the brush is arranged on the electric vehicle; and the air blowing devicecomprises a fan and an air pipe, the spraying device comprises a water tank and a water pipe, and the outlet of the air pipe and the outlet of the water pipe are both fixed above the annular guide rail. By integrating the brush, the air blowing device and the spraying device on one device, the device can realize sweeping, soot blowing, liquid spraying and blow-drying functions only by using the device, and the cleaning operation of the supporting insulator of the transformer substation is simpler and more efficient.

The application of the invention relates to a regulating device and discloses a projector regulating device. The projector regulating device is mounted on a wall and comprises a telescopic rod, wherein a sliding groove is formed in the wall, a slider is connected in the sliding groove in a sliding manner, the telescopic rod is fixedly connected to the slider, a support plate is connected between the two side walls of the sliding groove in a sliding manner, the telescopic rod penetrates through the support plate and is in clearance fit with the support plate, the lower side of the support plate is in rotating connection with a sleeve, a screw is connected in the sleeve through a spline, and the screw is connected in a threaded hole in the support plate through threads. Compared with the prior art, the application enables images developed by a projector to be more coordinated through the left and right movement of the slider.

The invention relates to a printing device, in particular to a nano-dimensional web printing and feeding device. The nano-dimensional code web printing and feeding device comprises a discharge expansion shaft and a receiving expansion shaft and further comprises a frame, a discharge motor, a receiving motor and a printing tensioning device. A printing platform is arranged on the frame. The discharge expansion shaft and the receiving expansion shaft are both mounted on the frame and correspondingly located on both sides of the printing platform. The discharge motor is fixed to the frame, and the discharge motor is connected to one end of the discharge expansion shaft. The receiving motor is fixed on the frame, and one end of the receiving expansion shaft is connected with the receiving motor. The printing tensioning device is mounted on one side of the printing platform and located between the printing platform and the discharge expansion shaft. The nano-dimensional web printing and feeding device has the beneficial effects of simple structure, effective control over the printing tension of webs, stable tensioning of the webs during the printing process and reliable printing qualityof the nano-dimensional code.

The invention relates to an adjustment device. The adjustment device for the projector disclosed by the invention is installed on the wall and comprises a telescopic rod; the wall is provided with a chute; a sliding block is connected inside the chute in a sliding manner; the telescopic rod is fixedly connected to the sliding block; a support plate is connected between two side walls of the chute in a sliding manner; the telescopic rod passes through the support plate and is in gap cooperation with the support plate; the lower side of the support plate is connected to a connection rod in a sliding manner; the connection rod is fixedly connected to a first wedge block; a second wedge block is abutted against the first wedge block; and the second wedge block passes through the support plate and is connected to the support plate through a sliding manner. Compared with the prior art, the projector can show an image with better color matching through the right-left movement of the sliding block.

The invention relates to the technical field of temporary buildings, in particular to an assembling method for a high-stable convenient-disassembly type temporary building. The assembling method adopts prefabricated slabs, connecting plates, wooden plates, a steel frame mechanism, a clamping and fixing mechanism, and a top lap jointing mechanism. Each of the connecting plates is connected with oneside of each of the prefabricated slabs in a clamping mode. The wooden plates are arranged on the top of the prefabricated slabs and the connecting plates in a lap jointing mode. The steel frame mechanism is arranged on the top of the wooden plates, and fixedly connected with the wooden plates through bolts. The clamping and fixing mechanism comprises an adjusting rotating handle and two rotatingcomponents. Through the match between the prefabricated slabs and the connecting plates in a clamping mode, the prefabricated slabs are fixedly connected with the connecting plates through the clamping and fixing mechanism between the connecting plates and the special wooden plates. The top lap jointing mechanism provides a supporter for partition boards and the like used later. Two clamping components on the top are easy to install, convenient in assembly, stable in performance, which greatly improves the efficiency of the assembly and disassembly of the temporary building and improves the stability.

The invention discloses a wire cutting wire arrangement mechanism with electrode wire cutting and recovery functions. The mechanism comprises a wire cylinder mechanism and a wire arrangement mechanism; the wire arrangement mechanism comprises two sets of connecting rod combination mechanisms arranged on the same one plane in a mirror image manner; the connecting rod combination mechanisms comprise manual wire tightening mechanisms, automatic wire tightening mechanisms, slide mechanisms and fixed guide wheels for changing a wire arrangement direction; the wire cylinder mechanism comprises a wire cylinder, guide grooves uniformly distributed in the peripheral direction of the outer wall of the wire cylinder, cutting devices respectively arranged in the guide grooves spaced on the outer wall of the wire cylinder in a radial extending direction of the wire cylinder, and wire collecting devices arranged in the guide grooves between the adjacent cutting devices; the wire collecting devices are sleeved with pressing devices in the axial direction of the wire cylinder; and tightening devices for driving radial movement of the cutting devices and the pressing devices are symmetrically arranged at two ends of the wire cylinder. The wire cutting wire arrangement mechanism comprises a whole set of wire cutting flow as wire penetration, wire tightening and cutting of molybdenum wires after machining, and is optimized to improve the machine tool machining efficiency.

The invention relates to a high-rise building curtain wall glass installation construction method. The method mainly comprises the following steps of adsorption operation, lifting operation, abutting operation, installation operation and other procedures. Used building curtain wall glass conveying equipment comprises a bottom plate, a lifting device, an adsorption device and an abutting device. The method can solve the following problems existing in existing glass curtain wall installation and conveying that a, during traditional curtain wall glass installation and conveying, a worker needs to hold curtain wall glass with the hand and stand on a lifting platform to convey the curtain wall glass to the installation position, potential safety hazards of manual curtain wall glass conveying are large, the phenomenon that the curtain wall glass falls off frequently occurs, the curtain wall glass is damaged, and unnecessary economic losses are caused; and b, existing curtain wall glass conveying equipment cannot stably convey the curtain wall glass to the proper installation position, adsorption to the curved-surface curtain wall glass is not stable, the curved-surface curtain wall glass at the corner cannot be conveyed, and the glass curtain wall conveying efficiency is reduced.

The invention discloses a forced centering device capable of being freely lifted, recycled and capable of achieving integrated operation. The forced centering device comprises a concrete pier, a steelsleeve, a steel pipe column, an instrument erecting platform and centering screws. The lower portion of the concrete pier is buried underground, a circular lifting channel is formed in the center ofthe concrete pier in the axial direction of the concrete pier, the steel sleeve is embedded from a top opening of the circular lifting channel, and the steel pipe column is matched with the steel sleeve in inner diameter and can extend into the steel sleeve and the circular lifting channel to slide up and down. A plurality of threaded holes are formed in the top of the steel sleeve in different directions of the circumferential face of the steel sleeve, and a nut matched with the corresponding threaded hole is screwed in each threaded hole. The instrument erecting platform is fixed to the topend of the steel pipe column, and centering screws are arranged on the top face of the instrument erecting platform. The device has the advantages of free lifting, recyclability, simple processing andmanufacturing (shaping manufacturing), high construction measurement precision, integrated operation, effective reduction of measurement personnel, remarkable improvement of measurement efficiency and the like.

The invention relates to a steering knuckle and shock absorber connecting assembly, a suspension system and an automobile. The steering knuckle and shock absorber connecting assembly comprises a steering knuckle structure, a shock absorber structure and a connecting structure; the connecting structure comprises a first connecting piece connected with the end of the steering knuckle structure, and a second connecting piece which is connected with the end part of the first connecting piece and the end part of the shock absorber structure; the second connecting piece comprises a support body arranged in a hollow barrel shape, a support connecting table arranged on the outer side wall of the support body in a protruding mode and a fastener inserted into the support connecting table, wherein the side face of the end of the fastener abuts against a step face of the connecting position of the support body and the support connecting table, and the outer side wall of the support body is connected to the first connecting piece and arranged on the peripheral side of an end cylinder barrel of the shock absorber structure in a sleeving mode. The step face at the joint of the support body and the support connecting table generates interaction reverse braking torque on the side face of the end of the fastener, and therefore, the end of the fastener is prevented from rotating in the fastening process.

An electric heating device, particularly for a motor vehicle, is provided that has at least one heating element disposed in a housing, whereby the housing has a housing cover and / or a housing base with at least one opening through which the at least one heating element is disposed protruding at least in sections, whereby a sealing element in which the at least one heating element is disposed is provided in the at least one opening in the housing cover and / or in the housing base.

The invention relates to the technical field of temporary buildings, and particularly relates to a high-stability temporary building convenient to disassemble. The high-stability temporary building convenient to disassemble comprises a prefabricated plate and a connecting plate, and further comprises a wood springboard, a steel frame mechanism, a clamping and fixing mechanism and a top lap joint mechanism, wherein the connecting plate is connected to one side of the prefabricated plate in a clamped mode; the wood springboard is arranged at the tops of the prefabricated plate and the connectingplate in a lap joint mode; the steel frame mechanism is arranged at the top of the wood springboard and fixedly connected with the wood springboard through bolts; and the clamping and fixing mechanism comprises an adjusting rotating handle and two sets of rotating assemblies. According to the high-stability temporary building convenient to disassemble, through clamping fit between the prefabricated plate and the connecting plate, the prefabricated plate and the connecting plate are tightly connected through the clamping and fixing mechanism between the connecting plate and the specially-madewood springboard, a carrier is provided for a partition plate and the like used in the later period through the top lap joint mechanism, the two sets of clamping assemblies at the top are convenient to install and lay, assembling is convenient, the performance is stable, the assembling and disassembling efficiency of the temporary building is greatly improved, and the stability is improved.

The invention discloses an integral disassembly and assembly method for a core cladding of a large vertical water pump, which belongs to the technical field of water pump installation and is characterized by comprising the following steps: a, fixing an impeller on a main shaft; b, a jacking mechanism is installed, the jacking mechanism is adjusted to jack the main shaft, and the main shaft at the main shaft sealing position is fixed to the top cover in the radial direction; c, a bearing is installed, the main shaft and the bearing are fixed in the radial direction, the water pump core bag is hoisted into a machine pit through a hoisting base, a bearing hanging frame and a jacking mechanism are disassembled, and an adjusting screw is unscrewed to enable a bearing bush to loosen the main shaft; and d, when the water pump core bag is dismounted, the seat ring fastening bolt is dismounted, the main shaft and the top cover at the main shaft sealing position are radially fixed again, the adjusting screw in the bearing is tightened, the bearing bush of the water pump core bag tightly holds the main shaft, the main shaft and the bearing are radially fixed, and the water pump core bag is hoisted out of the machine pit. The water pump core bag can be integrally lifted into and out of a machine pit, the water pump core bag can be quickly mounted and dismounted, and the mounting efficiency and the maintenance convenience are greatly improved.

The invention discloses an auxiliary device for a milling machine. The device comprises a column, a balancing weight, a boring box, a connection rope and a pulley base with pulleys, the connection rope penetrates through the pulleys and is fixedly connected with the balancing weight and the boring box separately, the boring box is driven to move up and down by a motor, the column is hollow, and guide rails are arranged on the two opposite inner side walls of the column; a hoisting block which can move up and down is connected to the top of the balancing weight and connected with the connectionrope, guide grooves which are matched with the guide rails are formed in the outer side wall of the balancing weight, and braking mechanisms are arranged in the guide grooves; a transmission mechanism which is connected with the braking mechanisms is arranged on the balancing weight at the outer side of the hoisting block. According to the scheme, after the connection rope is fractured and the hoisting block falls down, the braking mechanisms can be driven to abut against the guide rails to brake the balancing weight, and the problem can be effectively avoided that the balancing weight fallsdown and the milling machine is damaged.

The invention relates to a box opening and sealing device for an express package. The device comprises a box body and a supporting assembly, wherein a base is glidingly connected into a box opening groove; a blanking hole applicable to falling down of an object in the express package is formed in the base; a cutter rack is fixed to the sidewall of one side in the sliding direction of the base through a connecting block; a transverse cutter and a longitudinal cutter encircles to form C shape; a pushing rod is used for pushing the base to drive the transverse cutter and the longitudinal cutter to cut a quadrate opening in the bottom part of the express package; a sliding rod is glidingly connected into a box sealing groove; the upper end of the sliding rod is fixed to one of the ends of propping rods through a propping spring, and the other one of the ends of the propping rods is propped to the sidewall of the express package; the pushing rod can be raised to trigger a triggering ring body, and thus the sliding rod is capable of synchronously driving each propping rod to move to be above the express package through the triggering ring body; the propping spring springs back to drive the corresponding propping rod to prop a box cover of the express package, and then the box cover is manually glued to finish box sealing. Therefore, the problems of difficulty in unloading after manually cutting the bottom part of the express package and difficulty in box sealing can be solved.

The invention discloses an auxiliary device for a milling machine. The device comprises a column, a balancing weight, a boring box, a connection rope and a pulley base with pulleys, the connection rope penetrates through the pulleys and is fixedly connected with the balancing weight and the boring box separately, the boring box is driven to move up and down by a motor, the column is hollow, and guide rails are arranged on the two opposite inner side walls of the column; a hoisting block which can move up and down is connected to the top of the balancing weight and connected with the connectionrope, guide grooves which are matched with the guide rails are formed in the outer side wall of the balancing weight, and braking mechanisms are arranged in the guide grooves; a transmission mechanism which is connected with the braking mechanisms is arranged on the balancing weight at the outer side of the hoisting block. According to the scheme, after the connection rope is fractured and the hoisting block falls down, the braking mechanisms can be driven to abut against the guide rails to brake the balancing weight, and the problem can be effectively avoided that the balancing weight fallsdown and the milling machine is damaged.

The present invention provides tightening straps for a bag which are tightening straps for a bag that are coupled and installed on a bag having shoulder straps on both sides thereof, and which comprise: an upper left side strap having one end connectedly coupled to a left side shoulder strap; an upper right side strap having one end connectedly coupled to a right side shoulder strap; a lower left side strap having one end connectedly coupled to the bottom left side of a bag; a lower right side strap having one end connectedly coupled to the bottom right side of the bag; first coupling parts installed on the other end of the upper left side strap and the other end of the lower right side strap, and coupling the other end of the upper left side strap and the other end of the lower right side strap in a detachable manner; and a second coupling parts installed on the other end of the upper right side strap and the other end of the lower left side strap, and coupling the other end of the upper right side strap and the other end of the lower left side strap in a detachable manner. Thus, the tightening straps for a bag have the upper left side strap and the lower right side strap which are connected to each other via the first coupling parts and the upper right side strap and the lower left side strap which are connected to each other via the second coupling parts disposed tightly in an “X” shape on the front of a user's upper body in a state in which the user is carrying the bag using shoulder straps, and can maintain the bag in a secure, tight state on the user's back.

Provided is a disposable wear capable of surely lacing the trunk of a wear tight and strongly lacing the legs of the wear tight. A pair of first wings 8 having elastic contractility, are extended from both side edges 5c to the laterally outward direction of a waist zone 22, basic side edge parts 8a of the first wings 8 are respectively connected to both side edges 5b of an inside leg zone 21, a pair of second wings 9 having elastic contractility are extended from the both side edges 5c of the waist zone 22 to the laterally outward direction while superposed with the first wings 8, the basic side edge parts 9a of the second wings 9 are not connected to the both side edges 5b of the inside leg zone 21, the elongation stress of the first wings 8 acts in the direction around the trunk and the direction around the leg in connecting the front and waist zones 20 and 22, and the elongation stress of the second wings 9 acts in the direction around the waist.

The invention relates to an adjusting device, and discloses an ejecting device for a projector. The ejecting device is arranged on a wall and comprises a telescopic rod. A sliding groove is formed in the wall. A sliding block is connected with the sliding groove in a sliding manner. The telescopic rod is fixedly connected to the sliding block. A supporting plate and a bottom plate located below the supporting plate are connected between the two side walls of the sliding groove in a sliding manner. The telescopic rod penetrates the supporting plate and the bottom plate and is in clearance fit with the supporting plate and the bottom plate. Ejector blocks penetrating the supporting plate are arranged on the supporting plate. A shear fork type lifter is arranged below the ejector blocks in an abutting manner and fixedly connected to the bottom plate. Compared with the prior art, images formed by the projector can be more coordinated through left and right movement of the sliding block.

The invention discloses a computer external memory with high connection stability, which comprises a mobile hard disk, a plug is electrically connected to a socket on the left side of the outer wall of the mobile hard disk, the outer wall of a sliding sleeve is in clearance fit with the inner wall of a second through groove, and a first vertical rod is fixedly connected to the bottom of the outer wall of the sliding sleeve. An arc-shaped elastic piece is fixedly connected to the bottom of the outer wall of the first vertical rod, the inner wall of the arc-shaped elastic piece is attached to the outer wall of the wire, and the right side of the outer wall of the arc-shaped elastic piece is attached to the left side of the outer wall of the plug. According to the external memory with high connection stability for the computer, when a plug drives a wire to be connected with a mobile hard disk, the wire can be guided by a first grooved wheel and a second grooved wheel, the situation that the connection stability of the plug and a mobile hard disk jack is affected by the dead weight of the wire is avoided, and through elastic deformation of a second spring, the block body drives the first groove wheel to make contact with the wire, the wire makes contact with the second groove wheel, and the wire can be attached to the first groove wheel and the second groove wheel conveniently.

The invention provides a bevel guiding-groove honeycomb-hole manhole cover, belongs to the technical field of underground pipe network facilities for urban construction, and mainly solves the following problems caused by defects in the structural design of a conventional manhole cover: 1, during the heavy rain or the rapid rain, the drainage capacity of the conventional manhole cover is poor, water gathers and floods the road surface, and the traffic paralysis occurs; and 2, noise is generated when the conventional manhole cover is lost, shifted, turned over and impacted, the vibration structure is fatigued, and the conventional manhole cover is difficult to open. According to the bevel guiding-groove honeycomb-hole manhole cover provided by the invention, the matching mode between a manhole cover body and a manhole is designed as the bevel matching mode, thereby eliminating the clearance and the displacement between the manhole cover body and the manhole; besides, a forked lock being integrated with the manhole cover body is added, thereby thoroughly solving the problems that noise is generated when the conventional manhole cover is lost, shifted, turned over and impacted, the vibration structure is fatigued, and the conventional manhole cover is difficult to open; and meanwhile, flow guiding grooves are designed on the inner side of the bevel manhole, and honeycomb through holes are designed on the obverse side of the manhole cover body, thereby greatly alleviating or thoroughly solving the problem that water gathers and floods the road surface. The bevel guiding-groove honeycomb-hole manhole cover is mainly applied to rain collecting manholes and drainage manholes in all national cities, especially the southern cities with lots of rain.

The invention relates to the technical field of subway power supply system research, and discloses a subway power supply system bilateral inter-tripping function research line protection device whichcomprises a lower protection shell. The top of the lower protection shell is rotatably connected with an upper protection shell, and the upper protection shell is rotatably connected with the top of the lower protection shell through a hinge. Air holes are formed in the front side of the upper protection shell, and moving grooves are formed in the left sides and the right sides of the lower protection shell and the upper protection shell. According to the subway power supply system bilateral inter-tripping function research line protection device, a clamping block slides into a clamping grooveto realize fixation of a sliding block so that a clamping plate fixedly supports a flat-head power plug line, and meanwhile, the clamping plate can fixedly support the flat-head power plug lines withdifferent heights through up-down movement of the sliding block; and the situation that the power lines are intertwined together is reduced so that researchers can know the power plug of each line more clearly.

The invention belongs to the technical field of diesel engine maintenance at nuclear power stations, and discloses an oil inlet and return pipe maintenance tool and method for a diesel engine body ata nuclear power station. The oil inlet and return pipe maintenance tool comprises a clamping device and a jacking device, wherein the clamping device comprises a clamping pipe, a sleeve, a clamping screw and a clamping piece; the jacking device comprises a nut, a bolt and a bottom support; the clamping pipe is fixedly connected with the sleeve; a through hole is formed in the clamping pipe and inthreaded connection with the clamping screw; the end, close to the clamping pipe, of the clamping screw is fixedly connected with the clamping piece; the bottom of the bolt is fixedly connected with the bottom support; the nut matched with the bolt sleeves the bolt; and the bolt is inserted into the sleeve and connected with the sleeve in a matching manner. The oil inlet and return pipe maintenance tool is simple in structure and small in size, can adapt to onsite narrow maintenance space, and has rapid positioning and jacking functions; the uniform stress of an entire oil inlet and return pipe assembly can be guaranteed; the deformation of an oil inlet and return pipe as well as the sealing surface and thread damage can be avoided; the labor cost can be effectively reduced; the risk caused by human errors can be reduced; and the maintenance operation on the oil inlet and return pipe can be safely and efficiently performed.

The invention provides a welding clamp for a semiconductor photosensitive piece, which comprises a base and a rack arranged on the base, wherein a working table is arranged on the base; a pin slot matched with a pin of the semiconductor photosensitive piece is formed in the working table; a horizontal sliding rail is arranged on the working table; an inverted T-shaped positioning block, which is connected with the horizontal sliding rail in a sliding way, is arranged on one side of the pin slot; a limiting block for limiting the positioning block is arranged between the horizontal sliding rail and the pin slot; the positioning block is connected with a plunger rod; the plunger rod is connected with a first air cylinder mounted on the base; a cantilever is hinged to the rack; a support rod located above the pin slot is arranged at one end of the cantilever; the support rod is connected with a pressing head for pressing the semiconductor photosensitive piece; and a second air cylinder mounted on the rack is arranged at the other end of the cantilever. The welding clamp aims to solve the problem that the conventional semiconductor photosensitive piece is hard to position and low in processing efficiency during parallel welding.

The invention relates to the technical field of temporary buildings, in particular to a highly stable and easily disassembled temporary building, which includes prefabricated boards and connecting boards, and also includes wooden springboards, steel frame mechanisms, clamping and fixing mechanisms and top lapping mechanisms. The connecting boards Clamped on one side of the prefabricated board, the wooden springboard is overlapped and arranged on the top of the prefabricated board and the connecting board, the steel frame mechanism is arranged on the top of the wooden springboard and connected with the wooden springboard by bolts, and the clamping and fixing The mechanism includes adjusting handles and two sets of rotating components. The present invention makes the prefabricated panels and the connecting panels tightly connected through the clamping and fixing mechanism between the connecting panels and the special wooden springboard through the clamping fit between the prefabricated panels and the connecting panels. The connection mechanism guarantees the carrier for the partition board used in the later period. The top two sets of clamping components are easy to install and lay, easy to assemble, and stable in performance, which greatly improves the efficiency of assembly and disassembly of temporary buildings and improves the stability.

The invention discloses a nano zinc oxide loaded composite material preparation device which comprises a rack, a preparation box body is fixedly installed on the surface of one side of the rack, a material box is fixedly installed on the surface of one side of the preparation box body, a hollow rod is rotatably installed on the side face of the material box, and a stirring rod is fixedly connected to the surface of the hollow rod. A rotating disc is fixedly connected to the surface of one end of the hollow rod, a cavity is formed in the rotating disc, blowing holes are formed in the surface of one side of the cavity, a sealing plate is slidably mounted on the surface of the other side of the cavity, a connecting rod is fixedly connected to the surface of one side of the sealing plate, and a sealing head is fixedly connected to the surface of one end of the connecting rod; and the surface of the sealing head is slidably connected to the side face of an air blowing hole, and a feeding pipe is fixedly installed on the surface of one side of the material box, so that the use convenience and stability can be greatly improved, and the high efficiency and uniformity of preparation are guaranteed.