37results about How to "Reduce contact time" patented technology

The utility model relates to a handheld device for small mirror surface sand blasting parts, and belongs to the technical field of mirror surface sand blasting clamping. The handheld device for the small mirror surface sand blasting part comprises a grip and a fixing plate, and the fixing plate is fixedly connected to one end of the grip. The clamping mechanism comprises two fixing blocks fixedly connected to the upper end and the lower end of the fixing plate, and a threaded rod is arranged on the inner wall of the fixing block located on the upper portion. The handheld clamp is arranged and matched with the clamping mechanism to clamp a part and then conduct sand blasting, the probability that the part slides off from the hand due to sand blasting counter-acting force is reduced, meanwhile, in the sand blasting process, the part can be driven to rotate through a rotating rod by rotating a second rotary knob, and tiny angle adjustment can be conducted on the part; and the surface sand blasting of the part is more uniform. The part is clamped through the clamping mechanism, the contact time of the glove and the abrasive can be shortened, and the probability that glove fibers fall off to pollute the surface of the part, and consequently micro scratches are caused is effectively reduced.

The invention discloses a processing method of a grenade warhead, belongs to the technical field of machining, and solves the technical problems that the outline is limited, materials are wasted and a die is easy to scrap when the grenade warhead is stamped by a traditional integrated cylindrical lower die. The stamping die comprises an upper die and a lower die, the lower die comprises a left die block and a right die block which are split in half along the axis, and a die cavity matched with the outer contour of a target grenade warhead is formed after the left die block and the right die block are closed. According to the invention, the punching processing of complex contour products with equal diameters, large lower parts and small upper parts in one die cavity can be realized by twice punching and hole forming, so that the heat loss caused by die cavity replacement is avoided, the contact time length of the punch and a blank is reduced, the punch is prevented from being quenched and tempered, the subsequent machining amount is also greatly reduced, and the processing procedure is simplified; and meanwhile, the detachable lower mold is convenient to repair, the mold cavity can be remanufactured through machining, the upper mold can be repaired through the cladding welding technology, and then repeated repair and utilization of the mold are achieved.

This invention relates to transition layer materials and welding processes for welding dissimilar steel and aluminum materials, belonging to the field of welding technology. The transition layer material for welding dissimilar steel and aluminum materials of this invention comprises a copper layer, a copper alloy layer, and a zinc alloy layer arranged sequentially; the copper layer is adjacent to the steel base material, and the zinc alloy layer is adjacent to the aluminum base material; the copper content in the copper alloy layer is 62.0%-64.0%; the zinc content in the zinc alloy layer is 89.0%-91.0%; the mass ratio of the copper layer, copper alloy layer, and zinc alloy layer is (0.9-1.1):(2.3-2.7):(1.8-2.2). By sequentially setting the copper layer, copper alloy layer, and zinc alloy layer between the steel base material and the aluminum base material, a gradual transition from the steel base material to the aluminum base material is achieved, effectively avoiding the formation of brittle Fe-Al intermetallic compounds during direct welding, and enhancing the mechanical properties and durability of the welded joint.

The invention discloses an elasticizer yarn moving anti-eccentric-wear method and system based on dynamic stroke adjustment, and the method comprises the following steps: S1, a controller controls a motor I to rotate forwards and reversely at a constant speed through a frequency converter I, and the motor I drives a lead screw to be switched back and forth between forward rotation and reverse rotation; s2, forward rotation and reverse rotation of a lead screw drive a sliding block to reciprocate left and right along a guide rail, and a godet wheel is driven to reciprocate left and right; and S3, in the reciprocating motion process of the godet wheel, the first distance sensor and the second distance sensor are started by the controller. According to the invention, the stroke of the godet wheel is dynamically adjusted according to the wear condition of the godet wheel, so that the eccentric wear condition of the godet wheel is effectively reduced, and the service life of equipment is prolonged.

The utility model relates to the technical field of textile machinery manufacturing, in particular to an active rapier opening device of a rapier loom. The mobile cam mechanism includes a mobile cam and a roller follower assembly. The swing mechanism is driven by the beating-up swing shaft to slightly deflect. And the moving cam performs reciprocating linear displacement motion under the action of the traction force from the swinging mechanism. The roller driven assembly is used as an assembly foundation of the mounting seat. The rapier opening block is used for pressing the rapier receiving head of the rapier so that the rapier receiving head can release yarn and is fixed to the installation base. In the process that the roller driven assembly is controlled by the cam profile of the movable cam to execute reciprocating type linear displacement motion, the mounting base can drive the rapier opening block to be close to / away from the rapier receiving head of the rapier. Thus, on one hand, the displacement precision of the rapier opening block is guaranteed, and then the reliability and accuracy of implementation of the follow-up rapier opening action process are improved; and on the other hand, the service life of the rapier receiving head and the service life of the rapier opening block are greatly prolonged.

The embodiment of the utility model provides a tail coke extinguishing and collecting device of a 6m top-charging coke oven, which comprises a material receiving hopper, an upper water tank, a high-pressure water pump and a tail coke chute which are arranged on a coke barrier car, and a coke-water separating hopper arranged on a coke quenching trolley, the receiving hopper is located below a coke oven tail coke outlet, the tail coke chute is of an inclined groove-shaped structure with two open ends, and the top end of the tail coke chute is connected with the receiving hopper; the upper water tank is communicated with the top end of the tail coke chute through a high-pressure water pump; a feeding hole is formed in the top of the coke-water separation hopper, is positioned below the tail coke chute, and is larger than the bottom end of the tail coke chute; and a screen for separating tail coke from water is also arranged in the coke-water separation hopper. According to the technical scheme, the tail coke entering the tail coke chute is scoured, extinguished and transported through the high-pressure water, so that the problem of high failure rate caused by direct contact between a scraper mechanism and the tail coke is avoided, the normal operation of production is further ensured, and the tail coke treatment capacity is improved.

The utility model relates to the field of metal target material preparation material processing, in particular to metal material cutting equipment. The cutting equipment comprises a base table, and a first support and a second support are arranged on the base table; the first support and the second support are separated from each other, and a groove is formed between the first support and the second support. A first water inlet is formed in the bottom of the first support, a first water outlet is formed in the top of the first support, and a first water channel is arranged between the first water inlet and the first water outlet; a second water inlet is formed in the bottom of the second support, a second water outlet is formed in the top of the second support, and a second water channel is arranged between the second water inlet and the second water outlet; the bottom of the first support and the bottom of the second support are fixed to the base station through a fastening device. The device effectively reduces the temperature of the saw blade and materials, so that the service life of the saw blade is prolonged, and the cutting quality is improved.

The utility model discloses a kind of composite photovoltaic frame pultrusion production lines, including the glass fiber yarn frame, pultrusion mould, traction machine and cutting machine arranged in sequence;Felt frame and dehumidification integrated device are provided between the glass fiber yarn frame and pultrusion mould, felt frame and dehumidification integrated device include dehumidifier and felt frame, and the top and bottom of dehumidifier are respectively provided with felt frame;Production line further includes glass fiber yarn tension adjusting device, which is arranged close to pultrusion mould.Dehumidifier and felt frame are integrated design, compact structure, small floor area, and glass fiber yarn tension adjusting device is close to pultrusion mould, and the adjustment effect of yarn tension is more direct.

This utility model relates to a sampling device for caustic soda production testing, belonging to the field of caustic soda production testing technology. It includes a caustic soda production device and a conveying pipeline fixedly connected to the bottom of the caustic soda production device and extending to its exterior. An online sampling device is installed at the end of the conveying pipeline away from the caustic soda production device. The online sampling device includes a sampling valve fixedly connected to the end of the conveying pipeline away from the caustic soda production device, and a sampling box is installed at the bottom of the sampling valve. This sampling device for caustic soda production testing, through the conveying pipeline, can transport caustic soda from inside the caustic soda production device. By using the sampling valve and connecting pipe, a portion of the caustic soda inside the conveying pipeline can enter the connecting pipe. By using an internally threaded sleeve and a sampling tank, a portion of the caustic soda can be collected through the sampling tank. This achieves online sampling during the caustic soda production process and significantly reduces the contact time between caustic soda and air.

The utility model discloses an intake manifold, an engine and a vehicle, and relates to the technical field of engine intake, the intake manifold comprises a manifold body, the manifold body is provided with a pressure stabilizing cavity, a bent waste gas channel, a gas inlet communicated with the pressure stabilizing cavity, a gas outlet communicated with the pressure stabilizing cavity, a waste gas inlet communicated with the bent waste gas channel and a waste gas outlet communicated with the bent waste gas channel, and the waste gas outlet is communicated with the position, close to the gas outlet, of the pressure stabilizing cavity. According to the technical scheme, condensate water generated in the pressure stabilizing cavity is reduced.

The invention relates to a contact module, a switching device and a control circuit. The contact module comprises a moving contact, a static contact, an arc extinguishing structure and an arc pushing structure. The moving contact and the static contact are respectively provided with a moving contact point and a static contact, and the moving contact point can abut against the static contact. The arc extinguishing structure comprises an arc extinguishing chamber which is arranged at the side part of the static contact. The arc pushing structure comprises a push rod, an upper connecting rod and a lower connecting rod, one end of the upper connecting rod is hinged to the push rod, and the other end of the upper connecting rod is hinged to the moving contact. When the movable contact abuts against the static contact, the push rod is located on the side, away from the arc extinguish chamber, of the static contact. When the moving contact drives the moving contact to be away from the static contact, the moving contact can drive the push rod to move towards the arc extinguish chamber in the first direction through the upper connecting rod and the lower connecting rod. According to the contact module, the arc extinguishing speed can be further improved on the basis of the existing arc extinguishing structure, the contact time of a high-temperature arc and structures such as a static contact is shortened, and the protection effect on the structures such as the contact is improved.

The invention discloses a full-hydraulic full-circle needle beam trolley and method for compressed air energy storage, and relates to the technical field of beam trolleys, the full-hydraulic full-circle needle beam trolley further comprises a moving frame, the moving frame is fixedly connected to the interior of a frame assembly and arranged on the outer side of a needle beam assembly in a sleeving mode, a sliding rail is fixedly connected to the outer side of the needle beam assembly, side grooves are formed in the two sides of the moving frame, and the sliding rail is fixedly connected to the sliding rail; a containing groove is formed in the bottom of the movable frame, a plurality of sliding blocks used for sliding are arranged between the movable frame and the sliding rail, and mounting pieces are arranged between the sliding blocks and the movable frame. A displacement sensor in the detection mechanism can accurately measure the actual abrasion depth of the bottom of the sliding block, and therefore distributed and normalized monitoring of the abrasion state of the sliding block is achieved. When it is monitored that the abrasion loss of any sliding block reaches the preset highest threshold value, the system can give out early warning in time to remind an operator to replace a specific sliding block, risks such as equipment clamping stagnation, precision reduction or sudden failure possibly caused by excessive abrasion of the sliding block are avoided, and construction safety and continuity are guaranteed.

The utility model discloses a sampler for soil detection, which belongs to the technical field of soil detection and comprises an outer frame, a through groove is arranged on the bottom wall of the outer frame, a sampling barrel is movably arranged on the through groove, a plurality of through holes transversely penetrate through the sampling barrel, and a cover plate is movably arranged on the outer wall of the sampling barrel and can shield the plurality of through holes. A container box is fixedly arranged beside the sampling barrel, a plurality of containing grooves are formed in the container box and correspond to the through holes in position one to one, a plurality of container bottles are movably placed in the container box, and a push plate is arranged on the inner wall of the containing grooves in a penetrating mode and can push the container bottles to move in the direction of the through holes. According to the soil sampling device, one-time stratified sampling can be carried out on soil on a vertical plane, and after a sample is taken, the push plate is started to push the container bottle to penetrate through the through hole to subpackage the soil in the sampling barrel, so that the contact time of the soil and air is greatly shortened.

The utility model relates to the technical field of polypeptide processing, in particular to a multi-stage circulating filtering device for polypeptide synthesis reaction liquid, and aims to solve the problem that foreign matters easily enter filtering equipment when a filter element is replaced. The multi-stage circulating filtering device comprises a barrel, a through hole is formed in the upper surface of the barrel, and a lifting assembly is arranged above the barrel. Through cooperation of a hydraulic rod, a sealing cover and a first magnetic ring, the first magnetic ring applies pressure to a second magnetic ring, a filter cloth performs preliminary filtration on a reaction liquid, a filter membrane performs secondary filtration on the reaction liquid, and under the cooperation action of the hydraulic rod, the sealing cover and the first magnetic ring, the first magnetic ring drives the second magnetic ring to move out of the cylinder; after the second magnetic ring is detached, the through opening is sealed again, flowing of air inside and outside the cylinder is reduced, the filter membrane and the filter cloth which are replaced are installed and positioned through magnetic adsorption of the first magnetic ring and the second magnetic ring, the installation efficiency is improved, the contact time with the outside is shortened, and the safety of reaction liquid is improved.

The application provides a kind of carotenoid Pickering emulsion microcapsule and its preparation method, belong to food microcapsule preparation technical field.The application uses octenyl succinic acid starch microparticle as the emulsifier of Pickering emulsion, its interface stability relies on the steric hindrance between microparticles, can adapt to high homogeneous pressure processing, so that the emulsion particle size can be further reduced;By pre-dissolving sucrose, malt dextrin and other hydrophilic macromolecules in water, the solubility of octenyl succinic acid starch in water can be effectively reduced, so that the Pickering emulsion can be successfully prepared;By reducing the ratio of crystallization and oil, the shearing time can be shortened;By improving the viscosity of emulsion, the contact time of material and oxygen can be effectively reduced during high-speed shearing and homogenization, so as to improve the crystallization yield and reduce the production cost.

The application discloses a water sample PH detection sample extraction device, and relates to the field of water sample extraction, which comprises a supporting frame, a extraction mechanism is arranged on the top of the supporting frame, and a collection mechanism is arranged at the bottom of the extraction mechanism; the extraction mechanism comprises a filter box fixedly installed on the top of the supporting frame. The utility model discloses a kind of extraction mechanism, when water sample is extracted, operator does not need to contact water body, prevent the water body to carry pathogenic bacteria, cause harm to operator, and by the rotation of control screw rod, three-ear slide plate can be driven to move up and down, three-ear slide plate drives coarse filter head to move up and down, so that water sample of different depth can be extracted, through the effect of coarse filter head, impurities in water can be blocked, when water is pumped into filter box and contacts filter plate, filter plate filters silt in water, has the effect of quickly extracting sample from water body, improves the safety of operator, and also improves the precision of water sample PH detection.

The application discloses a conformal bidirectional strain sensor and conductive circuit on a curved structure and an integrated manufacturing method thereof, which comprises a transfer medium layer adhered to a surface to be measured, a strain sensing grid with multi-walled carbon nanotubes adhered to the upper surface of the transfer medium layer, and a conductive circuit with a microstructure array of micro-pillar hole structures arranged in the transfer medium layer; the strain sensing grid is provided with fine and dense cracks to sense strain, and the conductive circuit is covered with a packaging layer material; in the preparation, a template is prepared and surface hydrophilic and hydrophobic treatment is performed first, then strain sensing functional ink filling is performed, then the strain sensing grid is pre-stretched to generate micro-cracks, then multi-conductive functional material composite filling is performed in the conductive circuit area, then in-situ transfer printing of the sensing and conductive integrated structure is performed, and finally the packaging layer is covered; the application realizes high-precision sensing measurement and effective transmission of electrical information; the processing of the strain sensing area and the conductive circuit area is simple, and high-efficiency and low-cost manufacturing is realized.

The application discloses a management system based on an internet of things technology and relates to the technical field of fishpond breeding management. The application comprises a device main body, a dissolved oxygen detector arranged at the center of the top of the device main body, wherein the dissolved oxygen detector is internally provided with an intelligent module, a temperature controller arranged at the top of the dissolved oxygen detector, and a local temperature prevention device arranged at the left side of the device main body. The local temperature prevention device comprises a fixing seat, an electric sliding rail and a heating assembly. The fixing seat is fixedly installed at the top edge of the device main body, the electric sliding rail is fixedly installed at the left side of the fixing seat, and the heating assembly is slidingly installed at the right side of the electric sliding rail. The application drives the heating assembly to move leftward and rightward through the electric sliding rail, expands the heating range of the heating assembly on the fishpond, avoids the harm of high local temperature to the wandering fish, and reduces the breeding cost of fish.

The utility model belongs to the technical field of coal-bed gas well pumping unit indicator diagram testing, and provides an auxiliary tool for coal-bed gas well pumping unit indicator diagram testing, which comprises a gas production tree, a polish rod is arranged in the gas production tree, and the polish rod reciprocates up and down in the gas production tree. A third square clip is mounted at the top, close to the gas production tree, of the polished rod through a bolt; the auxiliary device comprises a main body, the section of the main body is of a U-shaped structure, a lock hole is formed in the inner side of the main body, a cylinder is fixedly installed in the lock hole, a limiting ball is inserted into the cylinder, and a spring is connected between the interior of the cylinder and the limiting ball; according to the utility model, the operation process is greatly simplified, in the testing process, the operation of mounting and dismounting the indicator diagram testing instrument or other operations by starting and stopping for multiple times is not needed, and the indicator diagram testing instrument can be mounted and dismounted without stopping only by aligning the U-shaped opening of the tool with the polish rod and slightly buckling the U-shaped opening.

The method for machining the spline in the turbine disc comprises the following steps that a tooth turning tool is used for feeding into an inner cavity of the turbine disc in the axial direction of the turbine disc; setting the rotating speeds of the turbine disc and the tooth turning cutter, and an included angle between a rotating shaft of the turbine disc and a rotating shaft of the tooth turning cutter; and rough machining is conducted on the side wall of the inner cavity through large radial cutting depth, then finish machining is conducted through small radial cutting depth for many times, and the internal spline is obtained. The invention further provides a turbine disc comprising the internal spline machined through the method and an aero-engine. According to the machining method, the turbine disc internal spline meeting the roughness requirement can be directly machined on the premise that interference with the mounting edge is avoided.

The utility model provides a soft package battery, which belongs to the field of soft package batteries and comprises at least one exhaust passage arranged on a battery main body. The gas storage bag is arranged outside the battery main body and is provided with a gas inlet; two ends of the air duct are respectively communicated with the exhaust passage and the air inlet; the one-way circulation piece is arranged in the air guide pipe; the exhaust passage abuts against the top of the battery main body; and the one-way circulating piece enables gas in the battery main body to flow into the gas storage bag from the exhaust passage to the gas inlet in a one-way manner. According to the utility model, the exhaust passage is arranged at the top of the soft package bag of the battery main body, and the exhaust passage is communicated with the external gas storage bag through the gas guide pipe with the guide circulation piece, so that gas generated in the aging process can be guided to be exhausted, and the gas is effectively prevented from reversely permeating into the soft package bag of the battery from the gas storage bag; meanwhile, the exhaust passage is positioned at the top of the battery main body and is communicated with the gas guide pipe, so that the problem of insufficient electrolyte retention capacity caused by the fact that the electrolyte is discharged along with gas produced by the battery cell can be effectively relieved.

The utility model discloses an activated carbon adsorption device for purifying tert-butylhexane peroxide, and relates to the technical field of activated carbon adsorption. An activated carbon adsorption device for purifying tert-butylhexane peroxide comprises a shell, and a filter frame for filtering gas generated by purification is mounted on the inner wall of the shell; the guide frame is mounted below the filter frame and is used for heating and catalyzing gas; the guide frame comprises a conical block, a plurality of spiral heat conduction plates are arranged on the outer side of the conical block and are distributed in an annular array, the bottom ends of the spiral heat conduction plates correspond to the gas inlet of the shell, a spiral channel is formed between every two adjacent spiral heat conduction plates, the gas transmission distance is prolonged, and the shell comprises an upper shell body and a lower shell body connected with the upper shell body; transmission is carried out in the transmission channel between every two adjacent spiral heat-conducting plates, and in a spiral channel formed by every two adjacent spiral heat-conducting plates, the contact distance between gas and the spiral heat-conducting plates is prolonged, and the heating catalysis efficiency is improved.

The utility model relates to the technical field of garbage recycling, in particular to a wear-resistant bell-shaped cover of a dehydrator. The utility model comprises a base, a machine shell, a shell cover, a feeding hole and a centrifugal separation component, wherein the machine shell is fixedly arranged on the base and vertically arranged along the height direction; the shell cover is detachably arranged above the machine shell in a covering manner; the feeding hole is formed in the shell cover; the centrifugal separation assembly is arranged in the machine shell, the screen is arranged on the centrifugal separation assembly in a sleeving mode and used for making water separated from the garbage in a centrifugal mode, the differential motion assembly is arranged in the machine shell and used for driving the centrifugal separation assembly and the screen to make differential motion, the collecting assembly is arranged in the machine shell and used for collecting the screened water, and the discharging opening is formed in the lower side of the machine shell. The device aims to timely discharge water in garbage as quickly as possible, so that the blades of the dehydrator operate in a dry state.

The invention relates to the technical field of power distribution equipment, in particular to a primary and secondary fusion ring main unit with an enhanced sealing and anti-collision structure, which comprises a sealing protection part, an anti-collision reinforcing part, a supporting and reinforcing upright post, a case, a case door, heat dissipation holes, a fixed embedding plate, a sliding adjusting plate, a fixed mounting seat and a first bolt, the box doors are symmetrically and rotationally arranged on the outer side of the machine box. Through a sealing protection structure composed of a plurality of protection plates on the front and rear sides of the top and bottom, an independent and complete protection shell is formed outside the case, the front and rear protection plates can be driven by the electric push rod to be opened and closed along the rails, the sealing protection structure can be opened, and the case can be normally used and conveniently overhauled; the anti-collision reinforcing part is installed on the outer side of the sealing protection part through a side fixing plate bolt, the modular design ensures that the completeness of the sealing protection part cannot be damaged by additional installation of the anti-collision structure, meanwhile, the sealing protection shell is directly protected through the buffering effect of the anti-collision structure, and an internal case is indirectly protected.

The utility model discloses a liquid spray type coffee device, including base, cover, filter shell and liquid supply module, cover and base are connected to form the first cavity that can hold coffee liquid, filter shell sets up in the cover, and filter shell has the second cavity that can hold coffee bean in, and the second cavity is located above the first cavity, and a plurality of first drop liquid holes that communicate first cavity and second cavity respectively are arranged on the filter shell, and the liquid supply module sets up in the base, and the input end of liquid supply module is located in the first cavity, and the output end of liquid supply module extends to the second cavity or the top of second cavity, and the liquid supply module is used for transmitting the coffee liquid of first cavity to the second cavity output, and the design can fully utilize coffee bean, and improve coffee quality simultaneously, and guarantee coffee flavor.

The invention discloses a coal seam closed fixed-point sampling device with a built-in sampling tank and a use method of the coal seam closed fixed-point sampling device. The coal seam closed fixed-point sampling device comprises a drilling tool and a drill bit seat integrally formed with the drilling tool, and a drill bit is assembled on the drill bit seat in a threaded mode; a drilling tool cavity is formed in the drilling tool in the axial direction of the drilling tool, a coal sample tank is arranged in the drilling tool cavity, the side, facing the drill bit, of the coal sample tank is in an open shape, and a ball valve is rotationally installed at the open position. The middle of the drill bit is in a through hole shape and is communicated with the interior of the drilling tool, and the ball valve acts to enable the interior of the coal sample tank to be communicated with the middle of the drill bit in the rotating operation process of the drill bit. According to the method, sampling can be carried out in situ on the coal seam, the loss of gas in the extraction and transportation process of the coal sample is effectively avoided, the authenticity and reliability of the measured gas content data are ensured, and compared with the problems of gas dissipation and measurement result distortion caused by coal sample exposure in the prior art, a more accurate gas content measurement result is provided; powerful data support is provided for coal mine gas prevention and control and coal bed gas development.

The invention discloses a ginsenoside-containing flash release agent as well as a preparation method and application thereof. The flash release agent is prepared from red ginseng, dwarf lilyturf tuber, Chinese magnoliavine fruit and specific auxiliary materials, and does not contain any sweetening agent or flavoring agent. The preparation method comprises the steps of superfine grinding, clathration and taste masking and direct tabletting. According to the invention, by optimizing the ratio of auxiliary materials and a tabletting process, the preparation is rapidly disintegrated within 3 seconds under the tongue, active ingredients are directly absorbed by sublingual mucous membrane, the first-pass effect is effectively avoided, and the preparation rapidly takes effect within 3 minutes; meanwhile, a sugar-free formula and a cyclodextrin inclusion technology are adopted, so that the beverage tastes good and is suitable for diabetics. The preparation method is simple and convenient in process and excellent in stability, and can be used for preparing medicines or health-care products for improving learning and memory, relieving fatigue or assisting sedation.

The utility model relates to the technical field of chemical substance storage, in particular to a benzocarbazole storage device. The storage device comprises a storage device body, a plug is installed on the surface of the storage device body, two square plates are fixedly connected to the arc surface of the storage device body, inserting rods are inserted into the square plates in a sliding mode, a round plate is fixedly connected to one end of each inserting rod, two connecting plates are fixedly connected to the arc surface of the plug, and the surfaces of the connecting plates are attached to the inserting rods. The arc surface of the inserting rod is sleeved with a spring, the two ends of the spring are fixedly connected with the square plate and the circular plate respectively, one side of the square plate is fixedly connected with a positioning plate, and the surface of the positioning plate is attached to the connecting plate. The problems that the storage quality of benzocarbazole is affected and the shelf life of benzocarbazole is shortened due to the fact that the sealing position of the plug or a storage device body part is abraded and the sealing performance is reduced due to uneven stress of the plug when a worker repeatedly and manually plugs and pulls the plug in the manual plug pulling process, and external moisture, oxygen and the like enter the device are solved.

The application discloses an automatic plastic sealing machine, which comprises a plastic sealing machine body, a first guide plate and a second guide plate arranged in parallel on the inlet side of the plastic sealing machine body, a channel for plastic sealing parts is formed between the first guide plate and the second guide plate, an elastic structure capable of ascending and descending is arranged in the channel and used for abutting against the plastic sealing parts, a swing arm which swings along with the elastic structure is arranged on the elastic structure, a magnet is arranged at one end of the swing arm, a Hall sensor is further arranged on the plastic sealing machine body, and the Hall sensor is located at the proximal end of the magnet. The technical scheme has the advantages that a complex temperature grade adjusting structure does not need to be arranged, and only a constant temperature needs to be arranged to meet the plastic sealing requirements of plastic sealing films with different thicknesses.

The utility model discloses a lead oxide mining vulcanization flotation device, which relates to the technical field of mining equipment, and comprises a flotation device box body and two fixed plates connected to the top of the flotation device box body. According to the flotation device, the reagents are mixed in advance before being put into the flotation device, so that the problem that different types of reagents are directly poured into the flotation device to be locally gathered and cannot be in full contact with minerals due to the fact that no measures for mixing different types of reagents are taken when the flotation device works at present is solved, and the working efficiency of the flotation device is favorably improved; according to the flotation device, the agent mixing shell is rotationally matched with the mixing rod and the like, so that agents can be mixed, meanwhile, continuous interval feeding can be conducted, the problem that the agent effect is unstable due to the fact that the local concentration is too high when the flotation device is used for feeding the agents in a large amount at a time is solved, and the working quality of the flotation device is improved.