60results about How to "Change speed" patented technology

The invention relates to a low-noise water purifier. The water purifier includes a shell, an integrated waterway plate and booster pumps. The integrated waterway plate is fixed to the shell and is connected to water outlets of the booster pumps through pressure stabilizing tanks. The pressure stabilizing tanks are disposed between the booster pumps and the integrated waterway plate. The integrated waterway plate is connected to a plurality of evenly arranged connection tubes and is connected to filter core base assemblies through the connection tubes in a one-one correspondence manner. Beneficial effects of the water purifier are that 1) water knocking abnormal sound of the water purifier is reduced, thus improving user experience, 2) the structure is simple, water leakage is prevented and the production efficiency is high, and 3) replacement of a consumable of the product is simpler and more convenient.

The invention relates to the technical field of coolers, and provides a plate type cooler which comprises a box body and a spraying pipe and further comprises a plurality of heat exchange plates, the heat exchange plates are arranged in the box body at intervals and located below the spraying pipe, every two adjacent heat exchange plates are communicated, each heat exchange plate comprises a plate body, each plate body is provided with a cavity, and heat exchange water is introduced into each cavity; the multiple turbulent flow strips are arranged in the cavity at intervals, each turbulent flow strip is provided with a baffling part and a turbulent flow part, one end of each baffling part is arranged on the inner wall of the plate body, and each turbulent flow part is rotationally arranged at the other end of the corresponding baffling part; the control piece penetrates through one side of the plate body and extends out of the box body, the control piece is provided with a connecting end, the connecting end is arranged on the turbulent flow part, and the control piece is used for driving the turbulent flow part to rotate. By means of the technical scheme, the problems that in the prior art, due to the fact that channels between the plates of a traditional plate cooler are very narrow, the phenomenon of blockage after scaling is prone to occurring, and the heat exchange effect is affected are solved.

The invention belongs to the technical field of heat exchange equipment, and particularly relates to a double-layer coil pipe type multi-stage heat exchanger and a heat exchange method thereof.The double-layer coil pipe type multi-stage heat exchanger comprises multiple heat exchanger bodies which are sequentially connected in series, each heat exchanger body comprises an outer cylinder, an inner cylinder, a first-layer coil pipe and a second-layer coil pipe, and each outer cylinder is arranged on the outer wall of the corresponding inner cylinder in a sleeving mode and provided with a fluid inlet and a fluid outlet; a fluid inlet and a fluid outlet which are communicated are formed in the inner cylinders, the fluid outlet of the upper-stage inner cylinder is communicated with the fluid inlet of the lower-stage inner cylinder, and the first-layer coil pipe and the second-layer coil pipe are both arranged in an annular cavity formed by the outer cylinder and the inner cylinders.

The utility model relates to the technical field of control devices, in particular to a throttling valve which comprises a valve body used for turning fluid, a Tesla valve is arranged on the rear side of the valve body in a matched mode, a cavity is formed in the valve body, a reversing block used for changing the direction of a fluid flow channel is connected in the cavity in a sliding mode, and an electromagnet is fixedly installed on one side wall of the cavity. A spring connected with the reversing block is inserted into the end, close to the reversing block, of the electromagnet through a protruding block, the front end face of the cavity is provided with a valve inlet flow channel communicating with the outside of the valve body and two valve outlet flow channels located on the two sides of the valve inlet flow channel, and the rear end face of the cavity is provided with two connecting holes which are symmetrically distributed and communicate with the outside of the valve body. The two connecting holes are inserted into through holes in the two ends of the Tesla valve through detachable connecting pipes correspondingly, and the front inner wall and the rear inner wall of the Tesla valve are each provided with a plurality of blocking plates which incline towards the connecting hole in one side at the same time and are sequentially parallel. The throttle valve is simple in structure, small in energy loss and easy to maintain, and the service life is prolonged.

The utility model discloses chicken cutting equipment for food processing, which comprises a rack and a blade group, a speed change device is arranged on the right side of the rack, a fixing device is arranged above the rack, and two ends of the blade group are rotatably connected to the inner side of the rack; when the speed needs to be adjusted according to different chicken processing states, the gear shifting rod, the input shaft and the first driving gear and the second driving gear on the input shaft are pulled to move horizontally together, the meshed gear sets are changed, the transmission ratio is also changed, and therefore the rotating speed and torque of the blade are changed, and the cutting equipment can be used for cutting chicken in different processing states. Proper rotating speed and torque are selected, efficiency is improved, loss is reduced, after the machine is started, the roller can be attached to and press chicken all the time under the action of the spring and the connecting rod mechanism, the chicken enters the feeding port through the conveying belt, the guiding ratchet wheel fixes the chicken and conveys the chicken to the blade set for cutting, and manual chicken pushing for cutting operation is reduced; and the safety is improved.

The utility model discloses a waterproof water guide groove for a building roof for building integrated photovoltaics (BIPV). The photovoltaic panel groove comprises a groove body, the groove body is arranged at a gap between every two adjacent photovoltaic panels, and the middle part of the groove body extends upwards to form a convex part; the groove body is divided into two water collecting grooves by the protruding part, and a plurality of drainage grooves are distributed in the water collecting grooves. A filter screen is fixedly arranged at the bottom of the drainage groove; a water collecting chamber is fixedly arranged at the bottom of the tank body; the gradient on the two sides of the protruding part accelerates the drainage speed of water flow, and therefore the drainage efficiency is improved. Due to the fact that the protruding part is arranged, a relatively high area is formed in the middle of the groove body, water flow can flow towards the two sides more easily, and accumulated water is prevented from being formed in the middle. The potential damage of moisture to the building and the photovoltaic panel is reduced, and meanwhile, the drying and cleaning of the tank body are kept; and the direction and the speed of water flow are changed through the protruding parts, impurities and particles can be precipitated in the water collecting chamber more easily, and therefore cleaning work is more convenient and efficient.

The invention relates to the technical field of heat energy power engineering, and discloses a waste heat recovery type heat energy driving device and application thereof in power engineering.The waste heat recovery type heat energy driving device comprises a transmission shaft, a suction machine, a pressure reduction assembly and a power assembly are sequentially arranged on the transmission shaft, the input end of the suction machine is connected with a suction pipe, and an adjusting assembly is arranged on the suction pipe; the end, away from the suction machine, of the suction pipe is connected with a boiler assembly, a filtering assembly is arranged on the side face of the boiler assembly, a cleaning assembly is arranged on the boiler assembly, and a connecting pipe is connected between the cleaning assembly and the power assembly. According to the boiler, the pressure reduction assembly is arranged, after pressure reduction and cooling are conducted on water vapor generated in the boiler, the water vapor is input into the power assembly to drive the transmission shaft to rotate, and therefore external mechanical equipment is driven to operate; by arranging the adjusting assembly, the flow of water vapor input into the power assembly is adjusted, so that it is guaranteed that the rotating speed of the transmission shaft is constant.

The utility model relates to the technical field of test platforms, and discloses a servo motor test platform, which comprises a mounting seat, a storage groove is arranged at the upper part of the outer wall of the front end of the mounting seat, a servo motor is arranged at the bottom of the storage groove, and a temperature monitor is arranged at the upper part of the inner wall of the front end of the storage groove. When the servo motor test platform is used, the output end of the servo motor is connected with the coupling, the initial temperature and the end temperature are checked through the temperature monitor, and the servo motor is started to drive the coupling to rotate and drive the rotating column to rotate at the same time. A first load semi-ring and a second load semi-ring are placed on the outer wall of a connecting column, at the moment, a clamping block drives a limiting spring to compress under the action force, and when the clamping block coincides with a clamping groove, the limiting spring releases the action force to drive the clamping block to be clamped and matched with the clamping groove; and the first load semi-ring and the second load semi-ring can be conveniently and preliminarily limited.

The invention relates to a single-rod common-weft cam power box and a high-speed rapier loom, a heald raising power set is arranged in a box body, the heald raising power set comprises a heald raising input shaft and a mounting shaft, the two ends of the heald raising input shaft are rotatably connected to the box body through bearings, the two ends of the mounting shaft are fixed to the box body, and the mounting shaft is fixed to the box body. Two heald-raising and weft-sharing cam groups are fixed on the heald-raising input shaft, each heald-raising and weft-sharing cam group comprises a cam I and a cam II, two heald-raising swing arms in one-to-one correspondence with the heald-raising and weft-sharing cam groups are connected onto the mounting shaft through bearings, and a roller I matched with the cam I and a roller II matched with the cam II are arranged on the heald-raising swing arms; the upper end of the heald raising swing arm is connected with a heald raising rod, and the heald raising rod is used for being connected with a heald frame; the rapier loom has the advantages that the mode that the single-side heald raising swing arm is matched with the common-weft cam is adopted, the heald raising swing arm can swing back and forth for three times when the heald raising swing arm rotates by one circle through the design of the cam, compared with an existing rapier loom, power can be improved by three times, and production efficiency is greatly improved.

This utility model discloses a high-pressure pump for a diesel engine, including a support device for support and protection. A support base is provided at the bottom of the support device. A transmission device is fixedly mounted on the upper surface of the support base near the rear. The transmission device is used for stepless speed regulation. The improved speed-regulating motor of this utility model adopts a series layout and is horizontally mounted on the transmission shaft between the power output end of the diesel engine module and the high-pressure water pump / centrifugal pump. This replaces the gearbox and high-speed shaft assembly located in this position in the original structure, realizing the integrated function of power transmission and speed regulation.

The utility model relates to the technical field of motorcycle accessories, and discloses an adjustable rear brake assembly which comprises a main pump, a wheel cylinder and a brake disc, the wheel cylinder is arranged at the top of the brake disc, and the main pump is connected with the wheel cylinder through an oil pipe; a push rod is led out of the bottom of the main pump; a rocker arm is arranged at the lower end of the push rod; the main pump comprises a shell and a piston, the piston is arranged on the lower side of the interior of the shell in a sliding mode, the bottom of the piston is fixedly connected with the upper end of the push rod, an adjusting screw rod is rotationally arranged at the top of the shell, an adjusting plate is arranged on the upper side of the interior of the shell in a sliding mode, and the middle of the adjusting plate is in threaded connection with the rod wall of the adjusting screw rod. The speed of hydraulic oil provided by the main pump for the branch pump is set to be adjustable, the braking speed of the brake disc can be adjusted, and therefore the braking distance of the motorcycle can be adjusted.

The utility model belongs to the technical field of special equipment for ceramic capacitor manufacturing, specifically relates to a winding tension control system and a casting machine for multilayer ceramic capacitor manufacturing. The winding tension control system comprises a feeding roller shaft, a rotating part rotatable around its central shaft and coaxially fixedly connected with the feeding roller shaft, an adjusting belt provided along the outer edge of the rotating part and having a fixed end and a movable end, and a driving part connected to the movable end of the adjusting belt for providing a pushing and pulling force. The wrapping angle of the adjusting belt on the rotating part is less than 360 degrees. The rotating part can rotate synchronously with the feeding roller shaft. The driving part can generate a pushing and pulling force to change the tightness of the adjusting belt on the rotating part, thereby adjusting the rotating speed of the feeding roller shaft to make the tightness of the carrier film appropriate, and the carrier film tightness adjustment can be completed more quickly and conveniently. The casting machine for multilayer ceramic capacitor manufacturing comprises the aforementioned winding tension control system.

The invention discloses an LED outdoor lighting intelligent control device, and relates to the technical field of LED outdoor lighting, the LED outdoor lighting intelligent control device comprises a shell, the shell is rotatably connected with a frame body, the top of the shell is fixedly connected with a fixing ring, the outer side of the fixing ring is provided with a plurality of filter holes, the filter holes are uniformly distributed in the outer side of the fixing ring, and the filter holes are communicated with the fixing ring. A heat conducting plate is fixedly connected into the shell, the side edge of the heat conducting plate makes contact with the outer side of the motor, the bottom of the heat conducting plate makes contact with the outer side of the baffle, square grooves are formed in the top and the outer side of the heat conducting plate, limiting rings are fixedly connected into the square grooves, and partition plates are fixedly connected into the square grooves. According to the LED outdoor lighting intelligent control device, the fan is driven by the motor to rotate, a complete air convection channel is formed, flowing air can take away part of temperature on the lighting lamp, and therefore active heat dissipation is effectively conducted on the lighting lamp, the LED lamp is not prone to being heated and damaged, and the service life of the LED lamp is prolonged.

The invention relates to an eddy current type plane multidirectional bridge damping and energy dissipation system which comprises a center shaft, an upper metal disc gear assembly, a lower metal disc gear assembly, a fixing plate, a first rack, a second rack and a sliding rod piece, the fixing plate is fixedly connected with the center shaft, and the upper metal disc gear assembly and the lower metal disc gear assembly are arranged on the upper side and the lower side of the fixing plate respectively and rotationally connected with the center shaft; the first rack and the second rack are perpendicular to each other, are in sliding fit with the upper side face and the lower side face of the fixing plate respectively and are meshed with gears on the upper metal disc gear assembly and the lower metal disc gear assembly respectively, and the sliding rod piece is provided with a transverse connecting part and a longitudinal connecting part which are in sliding fit with the second rack and the first rack respectively. And a permanent magnet is arranged on the fixed plate so as to cut magnetic induction lines to generate induction current when the metal disc gear assembly rotates, and then eddy current damping force is generated to slow down or hinder continuous rotation of the metal disc gear assembly. The system has a multidirectional energy consumption function, is free of frictional wear and contact damping, and is simple in structure and low in implementation cost.

The utility model discloses sausage stuffing vacuum stirring device, including the blender, the blender inside rotation is connected with two groups of rotating shafts, the rotating shaft outside rotation is connected with a plurality of groups first rotating link, first rotating link outside fixed connection has the stirring piece, first rotating link one end fixed connection has the connecting gear, the connecting gear one side is connected with the rack, the rack sliding connection is in the rotating shaft outside, the rack one end penetrates the blender fixed connection has the connecting plate, the connecting plate inside screw thread connection has the first screw rod, first screw rod tail and blender rotation is connected, can change the angle of stirring blade according to different types of meat stuffing, can aim at the real -time change of material characteristic in the process of stirring sausage stuffing.

The invention discloses an auxiliary observation device for a chemical titration test, which comprises a display arranged on one side of a box body, a conical flask arranged in the middle of the interior of the box body, a burette arranged at the top of the conical flask, operation holes formed in two sides of the box body, a notch formed in the side surface of the conical flask, and a groove formed in the box body on the outer side of the conical flask, an observation mechanism for shooting the conical flask is arranged on the outer side of the conical flask; a stirring mechanism for stirring the conical flask at a variable speed is arranged on the outer side of the conical flask, the conical flask is shot at different distances through a global camera and a local camera which are different from the conical flask in distance and is stored and displayed on a display, and a solution in a burette is weighed by matching with a balance; the change process of the titration solution is visually seen on the display, the titration amount does not need to just reach the color change degree, the titration end point can be judged according to playback, errors caused by misjudgment of the color change are avoided, and the accuracy of the titration test is improved.

The utility model discloses an exhaust noise reduction constant temperature heat dissipation system, which comprises a mute box body, a partition plate is arranged in the mute box body to divide the mute box body into a unit chamber and a heat dissipation chamber, the unit chamber is provided with an air inlet port, the heat dissipation chamber is provided with an exhaust port, and the partition plate is provided with a communication port for communicating the unit chamber with the heat dissipation chamber. By means of the arrangement, due to the fact that the impedance combined type noise elimination channel is arranged at the position of the communication opening, when air in the unit cavity is pumped to the heat dissipation cavity, the impedance combined type noise elimination channel can block or consume sound waves in the box body, noise in the unit cavity is effectively prevented from leaking out, and noise in the unit cavity can be effectively eliminated. Therefore, sound insulation and noise reduction of the mute box body are realized.

The utility model relates to the field of valves, in particular to a butterfly valve sealing surface grinding device which comprises a motor, a speed reducer, a control box, a V-shaped belt, a bearing seat, a deep groove ball bearing, a supporting frame, a belt pulley, a fixing disc and the like. The motor is connected with the speed reducer through a coupler, an output shaft of the speed reducer is connected with the small belt pulley, the small belt pulley is connected with the V-shaped belt, the other end of the V-shaped belt is connected with the large belt pulley, the large belt pulley is fixed to the rotating shaft, the two ends of the rotating shaft are provided with the two deep groove ball bearings, and the deep groove ball bearings are fixed to the bearing seats. The bearing seat is fixed to the supporting frame, and the fixing discs are installed at the two ends of the outermost side of the rotating shaft. The motor, the reduction gearbox and the control box are fixed to the lower side of the supporting frame. The utility model provides a variable-frequency efficient butterfly valve grinding device, which improves the grinding and polishing precision, saves the processing and manufacturing cost, achieves the roughness of Ra0.2, and meets the requirement of zero leakage of a metal hard sealing butterfly valve.

The invention provides a medical multifunctional transfer trolley with a variable bed width, and relates to the field of medical instruments. A medical multifunctional transfer trolley with a variable bed width comprises a transfer bed board; the device further comprises an expansion bed board and a variable-amplitude guide rail. Wherein the variable-amplitude guide rail is arranged at the bottom of the transfer bed board, the expansion bed board is connected with the variable-amplitude guide rail in a sliding mode, and the variable-amplitude guide rail provides a motion path for unfolding or folding of the expansion bed board. Compared with the prior art, the transfer trolley is operated in three modes of electric, electric power assisting and manual pushing, the operation modes are more and more flexible, the amplitude of the bed width of the transfer trolley can be changed between 500 mm and 800 mm through the drawer type variable bed width and the guardrails so that the transfer trolley can adapt to transfer of a patient with a large body type or a special body position, and the transfer trolley is convenient to use. The transfer trolley can achieve multiple functions of ultra-small radius turning, right-angle turning, in-situ turning, rotation with front wheels or rear wheels as fulcrums, parallel movement and the like.

The utility model discloses a kind of flotation reagent quantitative proportioning device, it is related to flotation reagent proportioning technical field.The utility model includes preparation tank and the chassis of being arranged in the bottom of preparation tank outside and the top frame of being arranged in the top end of preparation tank, further include: liquid material feeding hopper, wear in the inside top end of the top frame one side, the bottom end of the liquid material feeding hopper inside is provided with solenoid valve.The utility model is provided with the stirring paddle with through-hole, which is beneficial to shear and crush the agglomeration of mixed raw materials during the stirring and proportioning of flotation reagent, improve the agglomeration of mixed raw materials, and change the flow direction and speed of the material in the stirrer, enhance the turbulence, thereby improve the mixing effect and rate, and then speed up the mixing and proportioning efficiency of flotation reagent, and when the shaft drives the stirring paddle to stir mixed raw materials, the fixed frame can drive the scraper and polyethylene scraping strip to scrape the powder liquid material attached to the inner wall of preparation tank to ensure the mixing quality.

The utility model discloses a tailing crusher belongs to the technical field of crusher. This kind of tailing crusher, including support spare, drive assembly and crushing assembly, support spare is used for supporting drive assembly and crushing assembly, and crushing assembly is used for crushing tailing, and crushing assembly includes crushing jar, and the upper end of crushing jar is equipped with jar cover, and the bottom of jar cover is rotatably connected with transmission rod, and one end of transmission rod extends to outside through jar cover, and the outer wall of transmission rod is connected with a plurality of rotors, and the outer wall of rotor is provided with a plurality of vertical grooves, and the rotor is provided with horizontal groove on one side of vertical groove, and the inside of horizontal groove is slidably provided with moving block, and the outer wall side of moving block is installed with alloy hammer head, and the inside of moving block is provided with second screw hole on both sides of alloy hammer head, and the inside of horizontal groove is provided with second screw hole near second screw hole, and second bolt is screw connected between adjacent second screw hole and second screw hole.

The invention discloses a vehicle hybrid power system and a vehicle power output control method, and relates to the field of vehicle hybrid power, and the system comprises a power module, a load module and a transmission module; the power module is used for outputting power to the load module; the load module is used for consuming the power of the power module; the transmission module is used for controlling the state that the power module outputs power to the load module; wherein the power module comprises an engine and a driving motor; the load module comprises a generator and a differential assembly; the transmission module comprises a shaft module, a clutch module and a gear module; the clutch module and the gear module are connected with the shaft module to form a transmission link; and the shaft module is controlled to change the transmission link according to the action state of the clutch module. According to the scheme, a plurality of power transmission channels are established and switched, and a plurality of power output modes and driving load modes are conveniently combined.

The invention discloses detoxification treatment auxiliary equipment for raw gas conversion treatment, and relates to the technical field of gas separation, the detoxification treatment auxiliary equipment comprises a detoxification tower body, the middle part of the detoxification tower body is rotatably connected with a plurality of visual doors, the top of the detoxification tower body is fixedly communicated with an exhaust assembly, and a circulating water tank is mounted on one side, far away from the exhaust assembly, of the exterior of the detoxification tower body; through the arrangement of a variable-speed rotating mechanism, the impeller is driven in a manner that a gas spraying head and a mist spraying head both spray towards the impeller, and the inner cavity of the detoxification tower body is gradually filled with mist and raw gas gathered in the impeller area in cooperation with the rotating movement of a diffusion blade which is obliquely arranged outwards, and a single mist source mist spraying head is only arranged in the middle; the detoxicating tower is simple in structure and capable of spraying fine mist, not only saves the use of washing liquid and reduces the treatment pressure of the circulating water tank, but also improves the installation and maintenance efficiency, and can be used as a power source to assist the diffusion blades to jointly disperse the mist and raw gas into the cavity of the detoxicating tower, so that the situation of gas spraying or non-uniform mist spraying can be effectively avoided.

The invention provides a rotating speed adjusting device for a motor cooling fan, belongs to the field of motors, and solves the problem that the rotating speed of an existing motor cooling fan cannot be changed under the condition that the rotating speed of a motor spindle is fixed. Wherein the fan is rotationally arranged on a main shaft of the motor; the speed regulation assembly comprises a sealing box with a sealing cavity and a first gear, a second gear, a third gear, a fourth gear, a transmission chain and a transmission shaft which are located in the sealing cavity, the sealing box is fixedly arranged on the motor shell, the transmission shaft is rotationally arranged on the sealing box, the first gear fixedly sleeves a motor main shaft, and the second gear fixedly sleeves the transmission shaft; the first gear is sleeved with one end of the transmission chain, the second gear is sleeved with the other end of the transmission chain, the transmission shaft is fixedly sleeved with the third gear, the fourth gear is fixedly connected with the fan, and the third gear is meshed with the fourth gear; the speed regulation assembly is close to the outer side of the motor relative to the fan. The rotating speed of the fan is changed only by replacing the second gears with different tooth numbers, and the requirements for the rotating speed of the fan under different cooling requirements can be met.

The utility model discloses a self-adaptive rotating speed adjusting intelligent carving machine. The device comprises a bottom plate, rotating rollers are rotationally installed at the two ends of the two sides of the bottom of the bottom plate, connecting pieces are installed on the two sides of the top of the bottom plate, lifting pieces are movably arranged on the inner sides of the connecting pieces, motors are arranged at the two ends of the two sides of each lifting piece, threaded rods are arranged at the output ends of the motors, and the threaded rods are connected with the rotating rollers. And electric cylinders are arranged on the two sides of the top of the lifting part, moving parts are arranged at the output ends of the electric cylinders, servo motors are arranged in the moving parts, and gears are installed at the output ends of the servo motors. According to the utility model, the gear box is arranged on the self-adaptive carving structure, when carving knives with different specifications are used, the electric cylinder drives the motor to move, so that the driving gear can be meshed with different gear sets, the rotating speed of the carving knives is changed, the purpose of changing the rotating speed of the carving knives is achieved, and the carving knives can be prevented from being damaged due to over-high rotating speed.

The utility model relates to the technical field of fluid metering, and discloses a gas meter rectifying device and a gas meter, the gas meter comprises a shell, a gas inlet pipeline is arranged on the shell, the gas meter rectifying device comprises a fairing and a connecting structure, the fairing is arranged on the gas inlet pipeline, the fairing is provided with a gas inlet channel and a plurality of rectifying ports, and the connecting structure is connected with the fairing. The connecting structure comprises a connecting part arranged on one of the fairing and the air inlet pipeline and a connecting matching part arranged on the other one of the fairing and the air inlet pipeline, the connecting part is matched with the connecting matching part, the fairing is detachably arranged at the air inlet pipeline, and the fairing can be disassembled and assembled under the condition that the shell is not opened. The fairing is arranged on the gas inlet pipeline of the gas meter and is detachably arranged at the gas inlet pipeline, so that the fairing can be disassembled and assembled without opening the shell, the fairing is convenient to disassemble and assemble, the internal space of the gas meter is effectively saved, the cost is reduced, and the metering accuracy is improved.

This invention belongs to the field of textile technology, specifically a down-collecting device and processing method for down processing. It includes a down-filling hopper, an adjusting unit at one end of which contains a down-washing unit, and a pressure-relief unit within the down-washing unit. The invention uses an electric telescopic rod to move a filter plate inside the down-filling hopper away from the three-phase motor until the down inside the hopper is compressed to a designated area on one end of the electronic scale. Simultaneously, a crank connecting rod rotates, and a pressure-relief plate, under the control of a panel, rotates at a certain angle within the filter plate. This allows for real-time control of the alignment between the filter holes in the pressure-relief plate and the mesh of the filter plate. During this process, a pressure-relief valve extracts gas from inside the down-filling hopper to the outside, ensuring a vacuum in the down-retention area, eliminating the influence of air buoyancy, reducing airflow interference, effectively avoiding static electricity, improving the accuracy of the electronic scale's weight measurement, and ultimately improving product quality control precision.

The invention discloses a current type variable-speed cordless electric wrench, and particularly relates to the technical field of electric wrenchs.The current type variable-speed cordless electric wrench comprises a handle, a clutch assembly, a gear assembly and a counter-force arm are sequentially arranged at one end of the handle, a shell is fixed to the other end of the handle, and an electronic assembly is arranged in the shell; the clutch assembly comprises a third-stage gear assembly, a fourth-stage gear assembly and a double-clutch structure which are arranged in a clutch shell and are in transmission connection in sequence. In a high-speed output state, the fourth-stage gear assembly does not participate in torque transmission and does not have a torque amplification effect; in the low-speed state, the fourth-stage gear assembly participates in torque transmission, the output rotating speed is reduced, and the overall reduction ratio participating in torque transmission of the wrench is conveniently changed, so that the output torque of the wrench and the speed of an output shaft are changed, the reduction ratio is automatically switched when the wrench is no-load and loaded, and the tightening efficiency during no-load operation of the wrench is effectively improved.

The utility model provides rice processing equipment capable of controlling feeding, which relates to the field of rice processing and comprises a processing equipment main body, a feeding pipe is arranged on one side of the top of the processing equipment main body, and a feeding mechanism is further arranged on the top of the processing equipment main body. The feeding mechanism comprises a mounting bottom plate fixedly arranged at the top of the machining equipment body, a plurality of supporting rods are arranged at the top of the mounting bottom plate in an array mode, the tops of the supporting rods are jointly connected with a feeding hopper, and a first material disc is mounted at the bottom of the inner side of the feeding hopper. The bottom of the first charging tray penetrates out of the bottom of the feeding hopper; the motor drives the first material disc and the second material disc to rotate at a constant speed, in the rotating process of the first material disc and the second material disc, unhulled rice in the feeding hopper continuously falls into the material barrel and the material groove, and enters a feeding pipe of processing equipment from the inner side of the feeding barrel when rotating to the position above the discharging barrel; therefore, the effect of controlling the rice feeding speed is achieved.