2089results about How to "Avoid drifting" patented technology

The invention discloses a building material high-precision detection device, and relates to the technical field of detection devices.The building material high-precision detection device comprises a device body, a control panel is fixedly installed on the surface of the device body, a detection table is fixedly connected to the top face of the device body, and a plurality of sets of rotating rollers are rotationally connected to the detection table; a mounting frame is fixedly mounted on one side of the top face of the device body, brackets are fixedly connected to the two sides of the mounting frame, a pair of fixing rods are fixedly connected to the brackets, and a sliding plate is slidably connected between the pair of fixing rods. The building material conveying device is reasonable in structure, building materials can be conveniently conveyed to the bottom position of the mounting frame for detection through cooperative use of the feeding assembly and the adjusting assembly, the two sides of the building materials can be positioned through the limiting assembly, and the phenomenon of deviation during conveying is avoided.

The invention provides a bulk acoustic wave resonator, a filter and a manufacturing method thereof. The bulk acoustic wave resonator comprises a bulk acoustic wave resonator carrier with a first resonant cavity, a first electrode layer, a piezoelectric layer, a second electrode layer and a bulk acoustic wave resonator cover body with a second resonant cavity and a heat dissipation layer, the heat dissipation layer is provided with at least one protrusion. The second electrode layer covers a first area of the first surface of the piezoelectric layer, and the first area is the surface, close to one side of the bulk acoustic resonator cover body, of the piezoelectric layer; the first electrode layer covers a second area of the second surface of the piezoelectric layer, and the second area is the surface, close to one side of the bulk acoustic resonator carrier, of the piezoelectric layer; the orthographic projection of the second area on the bulk acoustic wave resonator carrier is at least partially overlapped with the orthographic projection of the first area on the bulk acoustic wave resonator carrier. The heat dissipation layer with a special structure is arranged at a proper position, so that the heat dissipation area can be increased, the heat dissipation efficiency is improved, and the problems of poor heat dissipation effect, poor performance and the like of the bulk acoustic wave resonator are solved.

The invention relates to the technical field of milling and grinding machining, in particular to a gantry type multi-head milling and grinding combined machining center and an operation method thereof. Comprising a portal frame table, an electric suction cup is arranged on the surface of the portal frame table, and a machining assembly is arranged at the end of a moving seat. An output shaft of a servo motor drives a rotating gear to rotate, so that a first rack arranged on the side wall of a first moving plate moves downwards in the vertical direction, and a second moving plate drives a servo grinding disc to move in the opposite direction; when the second moving plate moves, a pull rope is pulled, a main gear arranged at the bottom of a gear rod coaxially rotates, the main gear drives an auxiliary gear to rotate in a meshed mode in the rotating process, a worm arranged at the end of the auxiliary gear drives a worm gear to rotate, a rotating disc drives a high-speed air blower to rotate by 180 degrees, and the high-speed air blower blows air to the adsorption box. And smoke containing metal oxides generated in the hole milling process of the servo milling cutter is adsorbed into the activated carbon particles in the adsorption box, so that the health and safety of operators are guaranteed.

The invention relates to the technical field of wafer conveying, in particular to semiconductor silicon wafer positioning and taking equipment and a semiconductor silicon wafer positioning and taking method. The device further comprises a bearing device, the bearing device is connected between the two sliding rail devices, the bearing device comprises a bearing annular plate arranged between the two sliding rail devices, and the bearing annular plate is connected with a plurality of containing mechanisms evenly distributed in the circumferential direction. The supporting device is matched with the pressing device, the position of the moved semiconductor silicon wafer can be finely adjusted in the pressing process, the accuracy of the position of the moved semiconductor silicon wafer is further improved, the accuracy of alignment of a suction head on a mechanical arm and the semiconductor silicon wafer is ensured, and the success rate of taking the semiconductor silicon wafer is increased.

The invention relates to the field of elevator door change gear detection, in particular to an elevator door change gear detection device, which solves the problem that a door change gear can be automatically replaced while the elevator door change gear detection device is suitable for simultaneous detection of various door change gears with different sizes, and comprises a cabinet body and a driving motor, and an output shaft is fixedly installed at the output end of the driving motor, a plurality of driving wheels are fixedly installed on the outer wall of the output shaft, and the driving wheels are installed at equal intervals. According to the device, the function of automatically adjusting the height of the change gear seat can be achieved, the device can be conveniently suitable for door change gears with different sizes and diameters, the device can conveniently detect the door change gears with different sizes at the same time, a replacement box of the device can achieve automatic replacement when the door change gears descend after detection is completed, and the detection efficiency is improved. Manual operation is not needed, and the detection efficiency of the device can be improved on the premise of ensuring safety.

The invention discloses a stabilizing device for steel plate welding, and relates to the technical field of welding, the stabilizing device for steel plate welding comprises a machine body, and further comprises a moving device, a fixing device and a butt joint device; wherein welding equipment is fixedly connected to the top of the machine body, a long groove is formed in the bottom of the inner wall of the machine body, the moving device comprises a storage rack, a welding plate, a vertical plate, a winding roller, a supporting rod, a steel cable, a rack, a rotating rod, an incomplete gear, a U-shaped plate, a rubber column, a handle, a long rod and wheels, and the wheels are movably connected to the inner side of the long groove; according to the stabilizing device for steel plate welding, when a third spring moves downwards, the third spring can drive a pressing plate to move downwards, at the moment, the pressing plate makes contact with a welding plate, when the pressing plate makes contact with the welding plate, the pressing plate can fix the welding plate, and the phenomenon that the welding plate deviates when welding equipment conducts welding can be effectively prevented.

The invention provides a laser scanning galvanometer with a self-calibration system, and relates to the technical field of scanning galvanometers, the laser scanning galvanometer comprises a laser scanning galvanometer body, the laser scanning galvanometer body is internally provided with an inner cavity, the inner cavity is internally provided with a calibration structure, the calibration structure comprises a first calibration assembly, and a special-shaped support is fixedly installed on the inner wall of the inner cavity. A first circular groove is formed in the special-shaped support in a penetrating mode, the two first damping bearings are both arranged in the first circular groove, and outer rings of the two first damping bearings are both fixedly installed on the inner wall of the first circular groove. The overall structure of the calibration structure is mostly integrated on the special-shaped support, and the vibrating lens assembly on the high-speed motor generally has a replacement function, so that the first worm gear is conveniently arranged on the output shaft of the high-speed motor, additional installation on the existing basis is facilitated, the improvement cost is low, and the practicability is improved.

The invention relates to the technical field of feed processing, and discloses impurity removal equipment for feed raw material processing and an impurity removal method thereof.The impurity removal equipment comprises an impurity removal mechanism, the impurity removal mechanism further comprises an impurity removal barrel, a rotating rod is rotationally connected to the top of the inner wall of the impurity removal barrel, and three placement frames are arranged in the impurity removal barrel; a motor is started to drive a rotating rod to rotate, a placing frame is driven to rotate through a sliding ring, a roller brush is made to move, the roller brush is subjected to the influence of friction force between the roller brush and a circular screen, the roller brush revolves, and a round ball rod on the left side of the roller brush slides in a concave-convex annular plate in the rotating process of the placing frame; when the raw materials are separated, the roller brush is pushed to move transversely, the roller brush rubs soil attached to the raw materials, the sliding frame extrudes air in the exhaust groove, the raw materials are sprayed out through the air outlet holes, and therefore the soil on the raw materials is rapidly separated from the raw materials, the soil separation effect is enhanced, and the surfaces of the raw materials are kept clean.

The invention discloses an underwater layered multi-sample sampling ship, and relates to the technical field of underwater sampling equipment, the underwater layered multi-sample sampling ship comprises a ship body, a first extension arm and a second extension arm, the first extension arm and the second extension arm are arranged on the ship body, the first extension arm and the second extension arm are respectively provided with a height-adjustable sampling unit and a counterweight unit, and the sampling unit and the counterweight unit are respectively located at two sides of the ship body. The device is provided with the height-adjustable sampling unit and the counterweight unit, in the sampling process, the counterweight unit and the sampling unit can synchronously descend to the position below the water surface, the gravity deviation of the two sides of the ship body is reduced, the balance of the ship body is kept, and the ship body is prevented from deviating under the traction action of the sampling unit; therefore, the balance and the stability of the ship body in the sampling operation process are kept. Meanwhile, water samples at different positions in the sampling depth can be conveniently extracted, and the comprehensiveness of sampling operation and the accuracy of subsequent water sample detection operation are improved.

The utility model discloses an automobile wire pipe injection molding device which comprises a first seat plate and a second seat plate, a movable mold seat, a fixed mold seat and a vertical plate are arranged on the first seat plate, an air cylinder is arranged on the outer side face of the second seat plate, one end of the air cylinder is connected with a core mold seat, a plurality of sets of mold cores are arranged on the core mold seat, and the vertical plate is connected with the movable mold seat. A first inclined surface is arranged on the movable mold base, a second inclined surface is arranged on the core mold base, and a plurality of groups of mold cavities are formed in the inner side surfaces of the movable mold base and the fixed mold base; according to the utility model, the guide rod and the inclined surface play a role in guiding, and the core mold seat slides along the axis direction of the guide rod when moving, so that the movement direction of the multiple groups of mold cores is limited, the phenomenon that the mold cores deviate during mold closing is avoided, and the injection molding quality is improved; during mold opening, the air cylinder drives the core mold base and the mold core to reset, external force applied to the first inclined face disappears, the movable mold base slides along the sliding groove to reset under the action of resilience force of the multiple sets of springs, the injection molding cavity is automatically separated, and automatic demolding is achieved.

The utility model relates to the field of high-strength steel machining, in particular to a high-strength steel machining fixing clamp. The technical problems that in the high-strength steel machining process, due to the fact that manual fixing is poor in flexibility, certain potential safety hazards exist, and the machining quality and efficiency are affected due to poor stability are solved. According to the technical scheme, the high-strength steel machining fixing clamp comprises a supporting frame and further comprises a transverse clamping assembly, a longitudinal clamping assembly and a storage drawer. By arranging the transverse clamping assembly, high-strength steel of different lengths can be conveniently clamped and limited, the high-strength steel can be stably clamped, the deviation phenomenon is avoided, then the high-strength steel of different widths can be conveniently clamped through the longitudinal clamping assembly, and the working efficiency can be improved according to the heights of different workers. And a rotating handle can be manually rotated, so that a threaded rotating rod drives a second clamping block to be adjusted up and down, and the high-strength steel with different thicknesses is stably clamped.

The invention discloses a multi-layer pesticide spraying device based on soybean and corn composite planting, and relates to the technical field of agricultural machinery, the multi-layer pesticide spraying device comprises a pesticide spraying vehicle main body, the pesticide spraying vehicle main body is provided with a first spraying part used for spraying pesticide to corn plants and a second spraying part used for spraying pesticide to soybean plants; the first spraying part comprises a turnover frame rotationally connected to the front end of the pesticide spraying vehicle body, and a motor is fixedly installed at the top of the pesticide spraying vehicle body. A motor is controlled to work to drive an overturning frame to rotate, so that the overturning frame inclines, a spraying area of a first spraying component is pushed forwards to keep a relatively far distance from a cab, a spraying rod is vertically downward all the time under the action of a transmission component, and a plurality of first nozzles are installed in the axial direction of the spraying rod; during working, multi-layer spraying can be carried out on corn plants at different heights, so that the situation that pesticides only can be gathered at the upper ends of the plants is avoided, and the pesticide spraying effect is improved.

The utility model relates to the technical field of wall thermal insulation materials, and discloses a dustproof cutting device for wall thermal insulation materials, which comprises a support frame, a clamping mechanism is arranged at the top of the support frame, a dustproof cutting mechanism is arranged at the top of the clamping mechanism, and the dustproof cutting mechanism comprises a mounting frame. The mounting frame is fixedly connected to the top of the supporting frame, first air cylinders are fixedly connected to the two sides of the top in the mounting frame, a fixing frame is fixedly connected to the bottoms of the first air cylinders, a first motor is fixedly connected to one side in the fixing frame, and an output shaft is fixedly connected to one side of the first motor; the output shaft is rotationally connected to one side of the fixing frame, a cutting tool is fixedly connected to the surface of the output shaft, and a suction head is arranged on one side of the cutting tool. According to the dustproof cutting device for the wall thermal insulation material, the influence of dust flying on the body health of workers can be avoided, and meanwhile, the situation that dust directly enters the atmosphere and pollutes the environment is avoided.

The invention provides an edge sealing strip jet printing machine which comprises a support and a jet printing machine body, the support is provided with a conveying assembly, the conveying assembly comprises a first motor and a rotating roller, the support is provided with a protection assembly, the protection assembly comprises a box body and a gate plate, the support is provided with a stopping assembly, the stopping assembly comprises a pressing sleeve and a stopping roller, and the pressing sleeve and the stopping roller are arranged on the support. According to the edge sealing strip jet printing machine, an electric heating lamp and a fan can heat an edge sealing strip on the two sides of a blocking roller at first, then the edge sealing strip is cooled, the edge sealing strip is completely straightened in cooperation with the pulling force of the pulling roller, and therefore the edge sealing strip is completely straightened; the edge sealing strip spray printing device is simple in structure and convenient to use, unevenness such as wrinkles and curved surfaces on the edge sealing strip is eliminated, the edge sealing strip is effectively guaranteed to be completely flat, the quality of spray printing processing of the edge sealing strip is effectively guaranteed, ink volatile matter is prevented from drifting away, environment safety is guaranteed, and the edge sealing strip spray printing device is suitable for spray printing processing of the edge sealing strip.

The invention relates to the technical field of machine vision, in particular to an image segmentation method and system for liquid crystal screen display. The method comprises the following steps: acquiring basic data of the liquid crystal screen; performing screen response characteristic analysis according to the basic data of the liquid crystal screen to obtain screen response characteristic data; performing multi-scale image acquisition according to the basic data of the liquid crystal screen to generate multi-scale image data; performing characteristic classification on the liquid crystal display according to the screen response characteristic data, and performing edge compensation analysis on the multi-scale image data to obtain edge characteristic compensation data; acquiring real-time data of the touch screen; and performing touch interference identification analysis on the real-time data of the touch screen according to the edge feature compensation data to generate touch interference mask data. By analyzing the screen response characteristics and performing edge compensation analysis, the phenomenon of edge blurring caused by liquid crystal response time limitation is reduced, and the accuracy of edge detection is improved.

The staggered matrix four-way anchoring system comprises fixing anchors, anchor chains, self-floating brackets and floating equipment installed on the self-floating brackets, the self-floating brackets are put on the sea surface according to a preset matrix interval in a gridding mode, the fixing anchors are put on the sea bottom under the midpoint of the interval between every two adjacent self-floating brackets in a gridding mode, and the floating equipment is installed on the self-floating brackets. Each self-floating bracket and the fixing anchor form a plane dislocation relation, two grid layouts with equal matrix spacing and staggered matrix nodes are formed on the sea surface and the seabed, each self-floating bracket is connected with the fixing anchor of the adjacent seabed through an anchor chain in the diagonal direction of the matrix, and each group of self-floating brackets is pulled by four anchor chains. And each group of fixing anchors pulls four groups of anchor chains. The invention relates to the technical field of anchoring equipment, and particularly provides a dislocation matrix four-way anchoring system.

The invention relates to welding equipment and a welding process for miniature transformer production, and relates to the technical field of welding equipment. The welding device comprises a welding frame, a conveying box fixed to the welding frame and a plurality of supporting plates arranged on the welding frame. Each supporting plate is provided with two miniature transformer shells, a welding device used for welding the two miniature transformer shells and a buffering piece used for conducting lifting buffering on the welding device. Each supporting plate is provided with an adjusting assembly used for turning over and horizontally moving the two miniature transformer shells, and the welding frame is provided with a driving part used for driving the adjusting assemblies, a paint spraying part used for spraying paint on the two miniature transformer shells and a fixing part used for automatically fixing the supporting plates. According to the welding device, the welding device can be controlled to weld the inner curved surface and the inner inclined surface of the miniature transformer shell in an irregular shape, a worker does not need to turn over and adjust the miniature transformer shell, and the labor intensity of the worker is relieved.

The invention discloses an indoor energy-saving and environment-friendly decoration device, and relates to the technical field of air purification, the indoor energy-saving and environment-friendly decoration device comprises an anti-leakage mechanism, and further comprises a dust pumping and filtering mechanism connected with the anti-leakage mechanism and used for pumping dust in a sealed space of the anti-leakage mechanism; the rotary dust extraction mechanism communicates with the dust extraction filtering mechanism and is used for extracting indoor dust in multiple directions; the waste dust raising mechanism is connected with the rotary dust pumping mechanism; the anti-leakage mechanism is installed to cover a locally renovated room door, dust generated during indoor construction is prevented from drifting to a living room and other bedrooms, the problem that cleanliness of other positions is affected by local renovation is solved, the self-cleaning mechanism is installed to clean dust of a structure in contact with the dust, and the service life of the structure is prolonged. And through self dust cleaning, the influence of dust adsorbed on the structure in the dismounting process on the indoor environment is avoided, pollution to indoor air is avoided, the cleanliness of indoor furniture is protected, and the purpose of low-dust local renovation is achieved.

The invention discloses a fertilizing method for agricultural steeping field rectification, and relates to the technical field of steeping field rectification, and the fertilizing method comprises the following steps: S1, enabling water to enter a field to steep the field, and standing for 3-5 days, S2, pulling a tractor into the steeping field, starting an electric hydraulic rod to push a traction frame to move, pulling a rotating plate to rotate along a bottom plate, and turning on the electric hydraulic rod; according to the invention, the structure is scientific and reasonable, the use is safe and convenient, the soil turning and crushing mechanism is arranged, the traction frame is pushed to move through the electric hydraulic rod, and the rotation plate is limited through the bottom plate, so that the operation is convenient, the operation is convenient, and the operation is convenient. A sliding plate drives an electric hydraulic rod and a traction frame to slide along a sliding groove, a rotating plate is driven to rotate, a rotating rod drives a soil loosening roller to descend and make contact with the field, follow-up soil turning is facilitated, and through cooperation of a driving gear, the rotating plate drives a swing plate to rotate.

The invention relates to the technical field of fertilizing equipment, and discloses a fertilizing machine with adjustable fertilizing amount, which comprises a main body assembly, a mounting rack, a hopper, a blanking pipe, a support plate, a driving motor, a rotating shaft, a rotating disc and a fertilizing piece, the hopper is fixed in the mounting rack, the blanking pipe is fixed at the bottom of the hopper, and the support plate is fixed in the mounting rack; the driving motor is fixed to the bottom of the supporting plate, the rotating shaft is rotationally connected into the supporting plate, and the rotating disc is fixed to the top of the rotating shaft. By arranging the adjusting assembly, the fertilizing and scattering area can be flexibly adjusted according to the size of a land parcel, and when the scattering area is adjusted, the situation that the fertilizing amount difference in the unit area before and after adjustment is too large is avoided; through cooperation of the material throwing disc and the material uniformizing ring, it is ensured that the fertilizer can evenly fall into several material throwing pipes on an inclined land parcel, and the fertilizer deviation phenomenon caused by the gravity effect is avoided.

The embodiment of the utility model provides a wafer storage device and semiconductor process equipment, and the wafer storage device comprises a storage rack and an air injection device. An upper baffle and a lower baffle are arranged on the upper side and the lower side of the storage frame correspondingly. An open side face and a blocking side face are arranged on the circumferential side of the storage frame. The air spraying device is arranged on the upper baffle and used for spraying air from the upper baffle to the lower baffle so that an air curtain can be formed on the open side face. According to the wafer storage device, the air curtain can be used for preventing pollutants volatilized by the wafer from drifting away, so that the pollutants volatilized by the wafer can be prevented from drifting away to a cavity of semiconductor process equipment to pollute the cavity.

The invention relates to the technical field of casting equipment, and discloses aviation metal part casting machining equipment which comprises a bottom frame, a water tank is arranged on the inner side of the bottom frame, a mounting top frame is fixedly connected to the top of the bottom frame, a heat dissipation mechanism is arranged on the inner side of the bottom frame, and a die casting mechanism is arranged in the mounting top frame. The die-casting mechanism is used for casting aviation metal parts, a protection mechanism is arranged at the top end of the interior of the bottom frame, heat dissipation can be conducted on water-cooled liquid through the heat dissipation mechanism, spraying dust falling is conducted on the die-casting mechanism through the protection mechanism, the heat dissipation mechanism comprises a fixing box, and an impeller is rotationally connected to the interior of the fixing box. The water-cooling liquid can be stirred through the heat dissipation mechanism, so that heat dissipation of the water-cooling liquid can be accelerated, heat dissipation of the water-cooling liquid can be accelerated through heat conduction and heat dissipation, heat dissipation of the water-cooling liquid can be accelerated through combination of heat conduction and heat dissipation, then temperature rise of the water-cooling liquid can be prevented, and the water-cooling effect is improved.

The invention discloses conveying equipment for graphene powder, and belongs to the technical field of graphene processing.The conveying equipment comprises a first limiting bearing metal plate, and a deformable conveying mechanism is arranged on the upper surface of the first limiting bearing metal plate; the deformable conveying mechanism comprises a deformable conveying assembly used for drying and conveying materials and a feeding pressurizing assembly used for supporting and feeding the deformable conveying assembly, the deformable conveying assembly is arranged at one end of the feeding pressurizing assembly, and the deformable conveying assembly comprises a second hollow material conveying pipe. A rotatable conveying barrel is arranged at the top of the second hollow material conveying pipe and is rotationally connected with the second hollow material conveying pipe; and through mutual cooperation of multiple structures, closed pipeline conveying is conducted on the graphene powder, the situation that the graphene powder drifts away in the conveying process is avoided, and the conveying effect of the conveying equipment on the graphene powder is better.

The floor grinding machine comprises a bottom plate, a protection frame is fixedly connected to the rear end of the top of the bottom plate, trundles are installed at the four corners of the bottom of the bottom plate, a push handle is installed on the protection frame, an opening is formed in the front portion of the bottom plate, a fixing frame is arranged at the position, above the opening, of the top of the bottom plate, and a grinding assembly is arranged on the inner side of the fixing frame. A cleaning assembly is arranged on the rear side of the polishing assembly, an equipment box is arranged at the position, on the inner side of the protection frame, of the top of the bottom plate, a dust collection assembly is arranged above the equipment box, a storage battery is arranged in the equipment box, and an inverter and a circuit board are arranged on the two sides of the storage battery correspondingly. The protection ring is matched with the dust collection assembly, so that dust on the inner side of the protection ring can be conveyed into the dust collection box in time, dust generated during grinding is effectively prevented from drifting into air, and the dust is prevented from polluting the working environment; and a second electric cylinder is matched with a cleaning strip to achieve automatic cleaning of the ground floor, labor is saved, and practicability is high.

The auxiliary spraying device comprises a base, a telescopic assembly, a suspension arm and a spraying assembly, the bottom end of the telescopic assembly is fixedly installed on the base, the middle of the suspension arm is hinged to the top end of the telescopic assembly through a pin shaft, a telescopic rod is connected into the first end of the suspension arm in a sliding mode, and the second end of the suspension arm is connected with the spraying assembly in a sliding mode. The spraying assembly is hinged to the free end of the telescopic rod, a telescopic driving assembly is installed on the suspension arm, and the telescopic driving assembly is in driving connection with the telescopic rod. According to the spraying device, the spraying range can be greatly widened by arranging the suspension arm, the weight of the two ends of the suspension arm can be balanced by matching with the second balancing weight, a worker can obtain a large spraying range with a small swing range and force of the arm, the distance between the spraying head and the wall surface can be kept stable by arranging the telescopic rod and the telescopic driving assembly, and the spraying effect is good. And the spraying quality is ensured.

The invention provides a textile fabric anti-ultraviolet performance detection device, and relates to the technical field of fabric detection, the textile fabric anti-ultraviolet performance detection device comprises an unwinding mechanism, a first traversing mechanism, a second traversing mechanism and an adjusting traversing mechanism. The unwinding mechanism is used for unwinding and winding the to-be-detected cloth; cloth horizontally penetrates through the first transverse penetrating mechanism and the second transverse penetrating mechanism. The adjusting and penetrating mechanism has a first state and a second state which can be switched, so that the cloth can horizontally extend in the first state, and a downward arc-shaped recess and an upward arc-shaped bulge are formed in the second state. The linear ultraviolet sensor detection mechanism is used for detecting the ultraviolet transmittance of the cloth in the horizontal state; and the arc ultraviolet sensor detection mechanism is used for detecting the ultraviolet transmittance of the arc part of the cloth. The method can accurately detect the ultraviolet permeability of the fabric in different forms, is suitable for quality evaluation of anti-ultraviolet functional textiles, and reduces the quality defects after the textile fabric leaves a factory.

The invention relates to the field of bag-type dust collectors, in particular to a bag-type dust collector for fiberboard production, which comprises a dust collector body, a top cover mounted at the top of the dust collector body, a dust collecting box mounted at the bottom of the dust collector body, a bag mounting plate mounted on the inner side of the dust collector body, and a dust collecting bag mounted at the bottom of the bag mounting plate. An air inlet pipe is mounted on the side face of the bottom end of the dust remover body, an air outlet pipe is mounted on the side face of the top cover, back-blowing dust removal mechanisms capable of moving up and down are mounted on the inner side and the outer side of the dust removal cloth bag, and a back-blowing lifting mechanism located on the inner side of the dust removal cloth bag is mounted at the bottom of the cloth bag mounting plate; a cloth bag bottom plate is installed at the bottom of the dust collection cloth bag, a bottom plate connecting rod is connected between the cloth bag bottom plate and the inner wall of the dust collector body, and a beating vibration mechanism located on the inner side of the dust collection cloth bag is installed at the top of the cloth bag bottom plate. While back-blowing dust removal is carried out, the primary layer can be repaired, and the situation that the primary layer is damaged and the filtering effect is affected is avoided.

The invention belongs to the field of tea production, and particularly relates to a conveying device for tea production and a conveying method thereof.The conveying device comprises a conveyor, a conveying box is arranged at the top of the conveyor, two supporting plates are symmetrically and fixedly connected to the bottom of the conveying box, and two guide plates are symmetrically and fixedly connected to the top of the conveying box; according to the conveying device for tea production and the conveying method of the conveying device, hot air is discharged from a plurality of first air outlets through the arranged first flow guide plate, the hot air makes better contact with tea leaves while the tea leaves are stirred through the stirring plate, the hot air is discharged from a plurality of second air outlets through the arranged second flow guide plate, and the tea leaves are better in contact with the tea leaves. Through wrapping of the gas gathering plate and the stirring plate, hot gas is prevented from floating upwards too fast, the contact time of the hot gas and the tea leaves is longer, when the stirred tea leaves slide to the included angle between the gas gathering plate and the stirring plate, the double faces of the tea leaves can be dried at the same time, and the drying effect is higher and more uniform.

The utility model discloses a valve pressure testing machine, and belongs to the technical field of pressure testing. A valve pressure testing machine comprises a fixing seat and a clamping circular plate, a screw motor is arranged at the bottom of an inner cavity of a fixing table, a clamping assembly is arranged on the inner wall of a moving frame and comprises a fixing plate, a fixing frame is arranged on the outer wall of the rear portion of a water tank, a fixing circular plate is arranged at the bottom of a metal mesh plate, and a clamping block is clamped in the fixing circular plate. The sealing rubber sleeve I and the sealing rubber sleeve II can be matched with the rubber circular pad and the rubber pad to form a double-sealing mode to seal the two ends of the valve, the sealing effect is prevented from being influenced by gas leakage, the valves of various sizes can be tested, the use flexibility of the valve is effectively improved, and due to the arrangement of the metal mesh plate, the sealing effect is improved. The injury to personnel caused by splashed fragments can be effectively prevented, and the use safety of the device is improved.