158results about How to "Innovative design" patented technology

An ultra-low power consumption and high speed level shift circuit and method based on subthreshold conduction comprises an input shift circuit and a low power consumption output buffer, the input shift circuit comprises a pull-up network, a pull-down network and a feedback transistor, the pull-up network is of a current mirror structure, the pull-down network is composed of a first pull-down tube and a second pull-down tube, and the feedback transistor is connected with the first pull-down tube and the second pull-down tube. A feedback transistor is added, and when input signal high level conduction succeeds, the current mirror structure is switched off; and the second pull-down tube uses a common-gate transistor, and pulls down the output end of the input shift circuit to a low level by using the sub-threshold conduction principle of the common-gate transistor when the input signal is at a low level. According to the invention, the conversion speed of the falling edge signal in the circuit is effectively improved, the time delay is reduced, the static power consumption is ultralow, the wide voltage conversion range is provided, and meanwhile, the area is very small.

The invention is about a method of marking ink which is only used to defend fake. The composition of it is: lipidol or lipid, surface active agent, integration agent, water, buffering agent. Their mass percents are: 1,2-hexylene glycol: 5%-15%, butanol: 1-5%, DH-1: 5-10%, EDTA: 0.1-0.5%, MS-1: 0.1-1%, water: the rest. The process is: a. dissolving the colorant in water, b. put the correct percent of 1,2-hexylene glycol and butanol into the solvent, then dropping the MS-1 and EDTA solution when mixing the solvent for 30-50 min, c. put the rest precent of water into the printing ink box. The picture and word would be shown red fluorescence in the UV but blank in the usual light.

According to the auxiliary positioning clamp for milling the exhaust manifold, an inclined positioning supporting device is arranged on the right side of the upper end face of a bottom plate, and when the inclined positioning supporting device is connected with a flange at the lower end of a middle pipe of the exhaust manifold in a matched mode, an upper end pipe of the exhaust manifold is in a horizontal state, and a pipe opening in the elbow end of the upper end of the exhaust manifold is parallel to the corresponding side wall face of the bottom plate; the left side of the upper end face of the bottom plate is provided with a positioning and supporting assembly used for supporting the elbow end of the upper end of the exhaust manifold and determining the center position of a pipe opening, and the positioning and supporting assembly is matched with a pressing assembly arranged on the upper end face of the bottom plate to fixedly support the elbow end of the upper end of the exhaust manifold on the bottom plate. Initial positioning conditions are provided for the center of a pipe opening of the upper end pipe of the exhaust manifold, reliable supporting and fixing of the exhaust manifold on the bottom plate are achieved, the defect that a traditional clamp is high in requirement for machining equipment is overcome, machining cost is reduced, the exhaust manifold can be accurately and rapidly positioned and clamped, production cost is reduced, and the machining efficiency is improved. Equipment limitation is eliminated, and the production requirements of parts are met.

The invention discloses an anti-cracking embedded injection molding device and a processing technology thereof, and belongs to the technical field of injection molding.The anti-cracking embedded injection molding device comprises two supporting frames, two sliding rails are fixedly connected to the tops of the supporting frames, two lower molds are arranged between the two sliding rails in a sliding mode, and an upper mold is arranged at the tops of the lower molds; a lifting turnover assembly connected with the supporting frame is arranged between the two upper dies and used for driving the upper dies to ascend, descend and turn over, the lifting turnover assembly is connected with a deflection driving assembly, the deflection driving assembly is used for driving the lower dies to move and deflect, and two air blowing cooling assemblies are arranged on one side of the deflection driving assembly. According to the mold, blowing cooling can be conveniently conducted on the upper mold and the lower mold, the product shaping speed is increased, after mold opening, the upper mold moves upwards and deflects towards one side, the lower mold moves away and turns over towards one side, in this way, the operation space between the upper mold and the lower mold is enlarged, and workers can conveniently take materials, clean and maintain.

The utility model discloses a stirrer for producing self-drying gel for radioactive decontamination on a solid surface, which comprises a stirring box, and a stirring structure is arranged in the stirring box; the stirring device is reasonable in structure and novel in design, when the stirring device is used, a motor works to drive a rotating shaft to rotate, so that a first stirring rod is driven to rotate to stir materials, when the rotating shaft rotates, a third gear can rotate, and under the action of a rotating rod, a first gear, a second gear, a fourth gear and a fifth gear, a second stirring rod can rotate to stir the materials. The position of a third gear is adjustable, so that the first stirring rod can rotate independently, the first stirring rod and the second stirring rod can rotate together, multiple operation modes are achieved, and the operability is high.

The present application relates to furfuryl alcohol production equipment technical field, disclose a kind of furfuryl alcohol production waste residue drying device, including drying seat, drying box is installed on drying seat, upper disturbance plate is hingedly installed on the upper end of drying box side wall, lower disturbance plate is hingedly installed on the lower end of drying box side wall, cavity tube is communicated through between the region of upper disturbance plate and lower disturbance plate corresponding to the position of drying box side wall, telescopic mechanism for changing the relative position between upper disturbance plate and lower disturbance plate is provided on drying box, jet mechanism for spraying hot gas on upper disturbance plate and lower disturbance plate is further provided in drying box, driving mechanism for driving telescopic mechanism and jet mechanism operation is further installed on the position of drying box outer wall, lifting mechanism for guiding furfuryl alcohol waste residue into the inside of drying box is provided on drying seat.The present application makes that furfuryl alcohol waste residue can be evenly contacted with hot air flow on upper disturbance plate and lower disturbance plate, ensures the drying uniformity of waste residue, and also realizes the complete recovery of furfuryl alcohol waste residue.

The invention belongs to the technical field of synthesis of 2, 3-dipicolinic acid, and relates to a catalyst for synthesizing 2, 3-dipicolinic acid as well as a preparation method and application thereof, the catalyst is prepared from a carrier, and active components and auxiliaries loaded on the carrier; the carrier is boron nitride modified aluminum oxide, the active component is palladium-cobalt bimetal, and the auxiliary agent is magnesium; the catalyst comprises the following components in percentage by mass: 0.2 wt%-3wt% of palladium, 0.5 wt%-4wt% of cobalt, 0.05 wt%-0.3 wt% of magnesium, 5wt%-15wt% of boron nitride and the balance of an aluminum oxide carrier. The catalyst is prepared by adopting an ultrasonic-assisted sol-gel method, so that high dispersion and strong interaction of active components are realized. The catalyst shows high catalytic activity, high selectivity and excellent stability in a dichloropyridine carbonylation reaction, carbon monoxide is used as a carbonyl source, the atom economy is high, and the green chemical requirement is met.

The utility model discloses a sewage treatment device for slaughterhouse belongs to sewage treatment technical field, including box, the top of box is equipped with inlet pipe, the bottom fixedly connected with the inlet pipe of communicating hose, the fixedly connected with fixed plate of inlet pipe, the bottom of fixed plate is equipped with mobile filter assembly, and this mobile filter assembly carries out mobile filtering to sewage, and the mobile filter assembly is connected with drive assembly, and this drive assembly is used for driving mobile filter assembly mobile work. The utility model not only is convenient to rotate filter and changes the position of filtration, reduces local block, and changes the position of sewage falling, and it is convenient for sewage to contact with medicine water more quickly and more fully and complete purification.

The present application relates to the related technical field of environmental protection treatment equipment, and specifically relates to a sludge treatment device for ecological environmental protection, which comprises a base, two frame bodies fixedly installed on the base and oppositely arranged, and further comprises: a filter plate movably arranged between the two frame bodies and connected with an intermittent matching mechanism installed on one of the frame bodies, the intermittent matching mechanism can drive the filter plate to reciprocate along the width direction of the base; a transverse plate movably arranged on the base and located above the filter plate and connected with a threaded driving mechanism installed on the base, the threaded driving mechanism is connected with the intermittent matching mechanism through a one-way transmission mechanism, and through the mutual cooperation between various mechanisms and components, the efficient dewatering function of sludge before drying is realized, and the efficiency of subsequent drying treatment can be effectively improved.

The invention is suitable for the field of intelligent robots, and provides an Internet of Things AR inspection robot and a substation inspection method.The robot comprises a vehicle body, a detection device is installed on the vehicle body, the detection device inspects different positions of a power station, a round hole is formed in the vehicle body, and a round pipe is fixedly installed in the round hole. The movable pushing frame drives the opening and closing plate to be away from the rectangular penetrating opening through the connecting block fixed to one side, so that the rectangular penetrating opening is opened, and the warning box on one side can be moved out of the vehicle body. The warning box can give out flashes and alarm sounds, the flashes and the alarm sounds can be in various states, flashes of different colors and different alarm sounds can be given out according to the specific situation of the problem, and workers can judge the general situation according to the flashes of different colors and the alarm sounds.

A positioning aid for welding copper core wires to the outer wall of a ring column is provided. A ring column positioning and fixing device is fixed on a base plate, and the ring column is positioned and fixed on the ring column positioning and fixing device. Positioning plates and guide support plates are fixed on the base plate on the left and right sides of the ring column positioning and fixing device, respectively. The copper core wire, supported on the guide support plate, contacts the outer wall of the ring column welding position, and the positioning of the copper core wire on the ring column is completed when the end of the copper core wire contacts the side wall of the positioning plate. This utility model adopts a welding positioning auxiliary structure consisting of a ring column positioning and fixing device for positioning and fixing the ring column, a guide support plate for positioning the height of the copper core wire, and a positioning plate for positioning the length of the copper core wire end extending beyond the ring column. This structure can quickly and accurately determine the relative position of the ring column and the copper core wire, eliminating the problem of welding quality and welding accuracy being affected by the shaking or displacement of the ring column and the copper core wire, improving weld quality, and ensuring welding quality stability.

This utility model relates to a breathable container bag, including a bag body with a rectangular structure. The bottom surface of the bag body has a platform portion, the length of which is half the length of the bag body. Horizontal sleeves are symmetrically arranged on both sides of the platform portion. An adhesive strip is attached to the middle of the free end of the cover sheet. An exhaust port is located at the front end of the top surface of the bag body, and overlapping strips are provided at the corners of the top surface. A Y-shaped merging structure is formed between the cover sheet and the top surface of the bag body. Three parallel discharge ports are located below the end face of the bag body, and binding ropes are attached to both the inlet and outlet ports. Metal corner brackets are provided at the corners of the top surface of the bag body, and connecting ropes are attached to the metal corner brackets. Hanging rings are attached to the connecting ropes. The bag body has a composite layer structure, comprising, from the inside out, a breathable layer, a PP woven fabric layer, a cover layer, and a canvas layer. This utility model is ingeniously improved and novelly designed, with three discharge ports to increase unloading efficiency.

The invention discloses a multi-orbit satellite-borne laser communication terminal system, comprising an optical machine body, a tracking and aiming circuit, a communication main control circuit and a laser communication terminal system. The tracking and aiming circuit comprises a motor drive circuit board, a piezoelectric ceramic circuit board, a first and second power conversion circuit board, and a tracking and aiming control circuit board. The communication main control circuit comprises a main control communication circuit board, a second and second power conversion circuit board, a first optical receiving and transmitting circuit board and a second optical receiving and transmitting circuit board. The system, as a satellite payload, completes the establishment of a communication link with a ground terminal, uses laser as an information carrier to exchange and transmit information, and performs satellite-to-ground, inter-satellite and ground terminal laser communications, achieving high code rate, miniaturization, light weight and low occupancy rate requirements, and finally uses a set of optical transceiver system and tracking and aiming system to achieve satellite-to-ground, inter-satellite and ground terminal laser communications.

This utility model discloses a band saw with a tension display device, including a sliding potentiometer. One end of the sliding potentiometer is electrically connected to a digital display screen. A threaded plate is slidably connected to the bottom of the sliding potentiometer, and a potentiometer bracket is fixedly connected to the upper end of the threaded plate. A slider is slidably connected to the top of the sliding potentiometer. An upper wheel shaft is fixedly installed at the center end of one side of the slider, and a hanging plate is fixedly connected to one side of the slider. A groove is opened on the surface of the hanging plate. The band saw with the tension display device of this utility model can control the tension of the saw blade through the rebound force of the spring, thus better controlling the tension of the saw blade. At the same time, the potentiometer push rod can move with the hanging plate through the groove, and the value on the digital display screen changes accordingly. The tension value is displayed in real time by adjusting the position of the upper wheel, making the adjustment more accurate and convenient for customer operation.

The application discloses a minimally invasive navigation reduction and fixing system for pelvic fracture, and belongs to the technical field of medical devices. The system comprises a pair of data personalized navigation reduction components (1), a universal connecting rod (2), a control rod (3) and a navigation fixing device (4). The reduction component (1) is preset based on preoperative CT data of a patient, and is used for placing a bone needle to a fracture block; the universal connecting rod (2) is adjustable in length and angle, and is used for connecting the pair of reduction components; the control rod (3) provides a force lever for an operator to complete reduction; and the navigation fixing device (4) is a personalized guide plate, and is used for guiding accurate implantation of an internal fixing object. The application converts virtual surgery planning into a physical tool, realizes accurate minimally invasive reduction and fixation of a fracture, reduces surgical trauma and radiation, simplifies a process, and has a good popularization value due to a cost far lower than that of a navigation robot.

The utility model discloses an acetylene production generator which comprises a generator body, a bottom plate is arranged at the bottom of the generator body, and the generator body is connected with the bottom plate through a buffer structure. The device is reasonable in structure and novel in design, when the whole device is placed, generated impact force can drive the supporting columns to contract in the sleeves through the buffer springs so as to be effectively relieved, the impact force is completely released through the counter-acting force of the buffer springs, and therefore the generator body is effectively protected, and the service life of the generator body is prolonged. The problem that an existing device lacks a buffering device and can damage a generator body during placement is solved, after the device is placed, a lead screw is rotated and driven to move, so that the bottom end of the lead screw is rotationally installed in a threaded hole, a fixing block is fixed, the position of a supporting column is fixed, vibration generated during work of the device is avoided, and the service life of the device is prolonged. And therefore, the device is prevented from being damaged due to vertical shaking.

The invention discloses a large semitrailer platform air transport loading and unloading device and method, and relates to the technical field of air transport loading and unloading, the large semitrailer platform air transport loading and unloading device comprises a traction small wheel set, a driven small wheel set and a loading approach bridge; before air transportation, the front and rear small wheel sets of the large semi-trailer platform exceeding the air transportation height can be reloaded, and after the front and rear small wheel sets with small diameters are reloaded, the overall height of the semi-trailer platform can be reduced by not less than 500mm, so that the semi-trailer platform after the traction small wheel set and the driven small wheel set are reloaded can meet the overall dimension of an airplane cargo hold; the traction small wheel set and the driven small wheel set carry out air transportation along with the semitrailer platform, the semitrailer platform can be unloaded after the semitrailer platform arrives at a destination, automatic loading and unloading of the loading and unloading two-site airport are achieved, the design is novel, operation is convenient, the method can be used as a universal air transportation loading method of the semitrailer platform exceeding the air transportation height, and application and popularization are convenient.

According to the titanium and titanium alloy glasses frame plate polishing and grinding device, a trolley is arranged on the platform face of a platform frame, supporting wheels distributed in the width direction of the trolley are symmetrically installed on the front side of the bottom face of the trolley, and a polishing and grinding assembly arranged at the rear end of the upper plane of the trolley is connected with a transmission driving device arranged on the trolley; the transmission driving device drives the polishing and grinding assembly to polish and grind the gold glasses frame plate placed on the platform frame. A dust suction device used for sucking dust generated in the polishing and coping process is arranged at the front end of the platform face of the platform frame. The transmission driving device drives the polishing and grinding assembly to rotate to polish and grind a gold spectacle frame plate placed on the platform frame, the defect that polishing and grinding of tiny flaws on the surface of a spectacle frame are inconvenient is overcome, and the polishing and grinding efficiency and quality of the tiny flaws on the surface of the spectacle frame are improved. And the dust content in the polishing and coping process is reduced, and a relatively healthy working environment is provided for workers.

The utility model discloses a condensate water drainage structure of an energy cabin, which comprises an internal drainage structure arranged on a cabin body of the energy cabin, the internal drainage structure comprises a condensate water collecting tank arranged below a first long cross beam at the top of the central position in the cabin body, and a plurality of vertical beams arranged at the lower part of the first long cross beam at intervals, the front end and the rear end of the condensate water collecting tank are connected with the adjacent vertical beams, and first drain holes used for draining condensate water to the side walls of the vertical beams are formed in the lower ends of the adjacent faces of the condensate water collecting tank and the vertical beams. A bottom sealing plate of the cabin body is arranged below the vertical beams, the bottom sealing plate is in a ridge shape which extends downwards from the center position to the two sides in an inclined mode and is used for guiding flow, and second drainage holes are formed in the edges of the two sides of the bottom sealing plate. According to the utility model, condensed water in the cabin body can be smoothly led out of the cabin body, so that the condensed water can be effectively prevented from influencing a power supply device in the cabin body, the working environment of a power supply is improved, and the service life of the power supply is prolonged.

This utility model relates to a test accelerator pedal locking fixture, comprising a base, a support frame, and an adjustment mechanism. The base supports the entire fixture and is placed on the driver's seat floor. One end of the support frame is fixedly welded to the base, and the other end extends freely upwards with a U-shaped groove at its top. The adjustment mechanism is located in the U-shaped groove of the support frame and includes a screw and a pair of locking nuts. The screw passes perpendicularly through the U-shaped groove to the support frame. The pair of locking nuts, with a diameter larger than the width of the U-shaped groove, are located on opposite sides of the U-shaped groove and are threadedly engaged with the screw to lock it to the support frame. This fixture has the advantages of convenient installation, high control precision, and low cost, and is suitable for laboratory and real-vehicle testing scenarios.

A multifunctional transport system for straw bale recovery is provided, wherein a lifting drive device is provided on a flip-type storage frame and the lifting drive device is connected to a lifting frame arranged inside the flip-type storage frame, a transverse drive device is provided on the lifting frame and the transverse drive device is connected to a transfer manipulator device arranged in the lifting frame, a lifting transfer device and a lifting rotation device are provided in front of the flip-type storage frame, the lifting rotation device is connected to a picking manipulator device, the lifting rotation device drives the picking manipulator device holding the straw bale to rotate above the lifting transfer device, and the transfer manipulator device loads the straw bale on the lifting transfer device into the flip-type storage frame under the combined drive of the transverse drive device and the lifting drive device. The present invention realizes the integration of picking up and loading and stacking of straw bales, reduces the difficulty of picking up and loading and stacking of straw bales, improves the efficiency of picking up and loading of straw bales, and reduces the labor intensity of staff.

The application discloses a new method for synthesizing 3-acyl imidazo[1,5-a]pyridine compounds. The method comprises the following steps: adding 2-pyridyl-p-methanequinone (2-Py-p-QMs), terminal alkyne and p-toluenesulfonyl azide (TsN3), catalyst CuI, organic solvent and alkali into a reaction container under the condition of RT and O2 atmosphere, stirring the reaction for 4 hours, and then separating and purifying 3-acyl imidazo[1,5-a]pyridine compounds after the reaction is completed. The method expands the structure range of 3-acyl imidazo[1,5-a]pyridine products, and more compounds with rich structures can be obtained. Compared with the previous method for synthesizing the target product, the method is efficient, the reaction reagent is non-corrosive, the method design is novel, the raw material is cheap, the operation method is simple, and the product can be directly obtained under mild conditions.

The utility model provides a low energy consumption broken bridge vertical hinged door relates to door and window equipment technical field, including main part, sliding mechanism and ventilation mechanism, main part includes outer frame, outer frame internal top end and bottom end are both rotatingly connected with rotating shaft, sliding mechanism includes inner frame, inner frame is provided between a pair of rotating shaft, the inner bottom end of inner frame is equipped with first door plank, and the ventilation mechanism is equipped with second door plank. Sliding strips are installed on the inner walls of the two sides of the inner frame, a second door plate is slidably connected between the pair of sliding strips, the ventilation mechanism comprises a pair of installation strips, one sides of the outer walls of the pair of installation strips are attached to the inner frame, an installation frame is installed between the pair of installation strips, and a filtering frame is movably embedded in the installation frame; a pair of cavities is formed in each of the two sides of the exterior of the filtering frame, clamping blocks are slidably mounted in the cavities, second springs are fixedly mounted at one ends of the clamping blocks, and one ends of the second springs are fixedly connected with the inner walls of the cavities. According to the utility model, the practicability of the bridge-cutoff vertical hinged door can be effectively improved, and the bridge-cutoff vertical hinged door has higher practical value.

The utility model discloses a new -type stepping motor structure is internally provided with stator subassembly, rotor subassembly in its motor shell, and the motor rotating shaft is arranged in the core part of rotor subassembly, and the front bearing hole position of the front bearing seat of motor shell front side is internally provided with the front ball bearing, and the motor rotating shaft is rotatably connected with the front bearing seat through the front ball bearing, the rear bearing hole position of the rear bearing seat of motor shell rear side is internally provided with the rear ball bearing, and the rear end of motor rotating shaft is rotatably connected with the rear bearing seat through the rear ball bearing, and the front end of motor rotating shaft penetrates the front bearing hole position and extends to the front end side of front bearing seat, and the front end of front bearing seat is provided with cylindrical connecting portion, and the cylindrical connecting portion is the integral structure with front bearing seat, and the outer circumferential surface of cylindrical connecting portion is provided with outer thread, and the front bearing hole position extends to the inside of cylindrical connecting portion, and the compression spring is arranged in the rear side of front ball bearing in the front bearing hole position. Through the above structure design, the utility model has the advantages of novel design, compact structure and convenient and fast installation.

This utility model discloses an organic fertilizer powder processing device, including a cylindrical cavity and a motor-driven rotating shaft coaxially arranged inside the cylindrical cavity. Multiple hammers are evenly distributed circumferentially on the rotating shaft. Two symmetrically arranged dial plates are located outside the cylindrical cavity, connected by a tension spring. A motor-driven dial wheel is located between the two dial plates, and top blocks are symmetrically arranged on the circumference of the dial wheel. Follower plates and follower rings are connected to the dial plates. The follower plates are located inside the cylindrical cavity, and ribs are alternately arranged on the two follower plates. The follower ring is located on one side outside the cylindrical cavity, and multiple plugs extending into the cylindrical cavity are evenly distributed on the follower ring. In this utility model, reciprocating follower rings and follower plates are arranged at both ends of the cylindrical cavity and on the rear wall of the inner side of the cylindrical cavity. The follower ring can drive the plugs to reciprocate in and out, and the follower plate can drive the ribs to reciprocate and alternate. Both can effectively disrupt the integrity of the material adhering to the inner wall of the cylindrical cavity, preventing it from forming a continuous surface and thus stacking and thickening, causing it to fall and contact the hammers or reach the discharge port.

The utility model discloses a soft sugar packing jar belongs to soft sugar storage technical field, including jar body and jar cover, the inside fixed cover of jar body is equipped with fixed ring, the top movable cover of jar body is equipped with movable ring, the inner ring fixed connection of movable ring has two horizontal boards, two between horizontal boards fixed connection has sweet sauce cylinder, the inside of sweet sauce cylinder is equipped with baffle, the top inner wall of jar cover is fixedly connected with vertical rod, the bottom fixedly connected with sealing plate of vertical rod, and sealing plate is matched with sweet sauce cylinder, two rubber convex membranes are fixedly covered on the jar cover, the extrusion rod is fixedly connected on rubber convex membrane, the bottom hinged of extrusion rod has the rotating plate, the top rotary connection of rotating plate has fixed plate. The utility model not only is convenient to combine jar cover and jar body closely, prevents jar cover easy to open mistakenly, and still seals inside sweet sauce cylinder, and like this is favorable to the sealed preservation of not edible sweet sauce, prolongs the storage time.

The machining table comprises a base, a workpiece containing mechanism is arranged in the base, a machining device is arranged on the base, and a scrap recycling mechanism is arranged on the rear side of the base. The scrap collecting device is novel in design and simple in structure, scraps falling on the base in the machining process are collected in a negative pressure suction mode, the suction cup can move horizontally and shake up and down, and therefore the scrap collecting effect and efficiency are improved, and the scrap collecting device has the workpiece containing function and is more convenient and more practical.

This utility model discloses a dustproof device for tea packaging equipment, including a packaging box. A filter box is fixedly connected to one side of the packaging box, and a feed pipe is fixedly connected to the top of the packaging box. A lifting frame is movably connected inside the packaging box. A vacuum cleaner is fixedly installed on one side of the packaging box via a connecting plate. A dust suction hood is fixedly connected to the output end of the vacuum cleaner, and one end of the dust suction hood is connected to the filter box. A filter screen is slidably connected inside the filter box. A dust suction plate is fixedly connected to the inner wall of one side of the packaging box, and the dust suction plate is connected to the filter box. The dustproof device for tea packaging equipment of this utility model adopts a closed negative pressure dust removal system, which captures the dust generated by the tea in real time during the feeding process, realizing "dust control at the source," effectively preventing dust from accumulating inside the equipment, reducing dust residue in the tea, and achieving effective dust prevention.

A transfer rack for conveniently placing finished doors and windows includes a base, side frames, and a support frame. The base is W-shaped and includes a walking groove and V-shaped seats symmetrically arranged on both sides of the walking groove. Casters are installed at the bottom of the base. The side frames are fixed to the top of one side of the base, and the support frame is fixed to the top of the base. The walking groove in this invention allows personnel to easily walk to the inside of the transfer rack and place the finished doors and windows on it without having to lift their feet to step over the base, saving effort and ensuring safety, preventing tripping injuries and damage to the finished doors and windows. The W-shaped base and the gradually decreasing width of the V-shaped seats, along with the gradually decreasing width of the walking groove, allow multiple transfer racks to be nested together, saving space. The omnidirectional brake casters facilitate directional changes during use and accurate positioning when stacking adjacent transfer racks, improving work efficiency.