33results about How to "Fast drip" patented technology

The invention relates to the technical field of machining, and discloses a part oil immersion device for machining. The part oil immersion device comprises an oil tank, the top of the oil tank is in contact connection with an oil cover, a push plate is arranged on the oil cover, two symmetrically-arranged vertical rods are fixedly arranged at the bottom of the push plate, the lower ends of the rodwalls of the two vertical rods penetrate through the oil cover and extend into the oil tank, connecting plates are fixedly arranged at the bottoms of the rod walls of the two vertical rods through connecting blocks, transverse rods are fixedly arranged on the sides, close to each other, of the two connecting plates, the other ends of the two transverse rods are jointly and rotationally connectedwith a material placing box through first rotating bearings, a cover plate is in threaded connection with the two ends of the top of the material placing box through bolts, a rotating mechanism is arranged at the top of the push plate, and two symmetrical fixing plates are fixedly arranged on the two sides of the oil tank. According to the part oil immersion device for the machining, redundant oilon the part surface can rapidly drop, and the overall operation efficiency of part oil immersion work is improved.

The invention relates to the technical field of welding, in particular to a laser welding method and a device thereof. The laser welding device comprises a laser generating mechanism and a tin feeding mechanism, wherein the tin feeding mechanism comprises a tin feeding needle; the tin feeding needle is a tubular object with an accommodating cavity, and comprises a tube wall which surrounds the accommodating cavity and two end surfaces; and end openings which communicate with the accommodating cavity are separately formed in the two end surfaces; and a notch which communicates with the accommodating cavity is formed in the tube wall, so that a tin wire is fed out from the end openings after being firstly exposed from the notch in a transfer direction. The laser generating mechanism is used for generating laser which acts on the tin wire transferred by the tin feeding needle, so that the tin wire is fed out from the two end openings after being preheated at the notch. The laser welding method adopts the laser welding device to preheat the tin wire, so that a workpiece is welded. The notch which communicates with the accommodating hole is formed in the tube wall, so that the tin wire is fed out from the end openings after being exposed from the notch and being preheated by laser; and the preheated tin wire can be molten more quickly in a welding process, so that welding efficiency is improved.

The invention discloses a piston type temperature-constant calorimeter and relates to the field of analytical instruments for calorific values of combustible matters. The calorimeter comprises an inner barrel (1), an oxygen bomb (2), an outer barrel (3), a cover (4) and a case (5), wherein a middle barrel (6) is arranged between the inner barrel (1) and the outer barrel (3), a gap exists between the inner barrel (1) and the middle barrel (6), a positioner (7) is arranged on the case (5), a piston (8) is arranged below the cover (4), both upper and lower surfaces of the piston (8) are arc-shaped convex surfaces, a sealing ring (9) is arranged in a position where the piston (8) and the inner barrel (1) are contacted, an ignition electrode (10) is arranged at the bottom of the piston (8), a temperature measuring probe (11) and an inner barrel stirring mechanism (12) are arranged in the inner barrel (1), and an outer barrel stirring mechanism (13) is arranged in the outer barrel (3). According to the piston type temperature-constant calorimeter, accurate and quick water quantification can be realized during measurement, and the measurement accuracy and the measurement efficiency of the calorimeter are improved.

The invention discloses an environment-friendly air conditioner with high cleanliness, comprising a enclosure, a small water tank, a cleaning agent containing box, a mixing tank, a dust collecting box and a control device, wherein the small water tank, the cleaning agent containing box and the mixing tank are all arranged in the enclosure; the mixing tank is connected with the small water tank and the cleaning agent containing box at the same time by a connecting pipe; the dust collecting box is arranged below the enclosure; and a cleaning brush is arranged at the inner side of an air outlet of the enclosure. By adopting the environment-friendly air conditioner with high cleanliness, disclosed by the invention, water and a cleaning agent are respectively delivered to the mixing tank by the small water tank and the cleaning agent containing box and are mixed, and then the cleaning agent is extruded out and sprayed out from a nozzle, so as to improve the cleaning capability, and therefore, the cleaning effect of the cleaning agent to the air conditioner is greatly improved, the cleanliness of the air conditioner is improved, breeding of bacteria of the air conditioner is reduced, and further the requirements of consumers can be better met.

The invention relates to the technical field of the transformer of power distribution equipment and provides an anti-condensation box-type transformer, thereby solving a problem that the existing outdoor box type transformer is affected with damp easily. The anti-condensation box-type transformer comprises a transformer body and a box-type transformer box body. A pedestal arranged at the bottom of the box body is supported by standing posts having concrete structures; the standing posts and the pedestal are fixedly connected; and the plane where the lowest side of the bottom of the box body is located is higher than the ground. Besides, the box-type transformer also includes side plates arranged between the adjacent standing posts; the standing posts and the side plates form the prefabricated space below the box body; the box-type transformer box body is arranged above the space. Ventilating grilles are arranged at the two longitudinal side plates of the prefabricated space below the box body; and air blowers are arranged inside the prefabricated space and are arranged at the inner sides of the ventilating grilles specifically. The anti-condensation box-type transformer is designed reasonably. Condensation formed at the bottom of the box body can drip rapidly to avoid drop deposition. Besides, the bottom surface of the box body is coated with a waterproof composite material, so that the waterproof and corrosion-resistant performances of the anti-condensation box-type transformer can be enhanced and the service life can be prolonged.

The invention relates to a steel smelting manufacturing and processing process. The steel smelting manufacturing and processing process adopts a following steel smelting manufacturing and processing device. The steel smelting manufacturing and processing device comprises a bottom plate, a heating barrel, a smelting barrel, a base, a telescopic sleeve, a telescopic air cylinder and a cleaning mechanism, wherein the cleaning mechanism comprises a cleaning support plate, a turnover plate, a cleaning rod, a containing box, a rack pushing air cylinder and an air cylinder support plate. The steel smelting manufacturing and processing process adopting the steel smelting manufacturing and processing device comprises the following steps of S1, steel wastes cleaning; S2, steel wastes slitting; S3, steel melting; S4, sundry cleaning; and S5, subsequent processing of molten iron. According to the process, the problems existing in the existing cleaning of sundries after steel melting that the sundries on molten iron can not be completely cleaned manually; and the temperature of the molten iron is high, the phenomenon of splashing of the molten iron exists in the manual salvage of the sundries,resulting in the safety accidents of workers can be solved.

The invention relates to the field of umbrellas and discloses a solar powered fan umbrella. The solar powered fan umbrella comprises main umbrella cloth, an umbrella pole and an umbrella handle, wherein solar film battery panels are uniformly distributed on the outer surface of the main umbrella cloth; a main umbrella skeleton used for supporting the main umbrella cloth is arranged in the main umbrella cloth; the umbrella pole comprises an upper pole segment and a lower pole segment; a first fan component is mounted between the upper pole segment and the lower pole segment; the first fan component comprises a motor component and foldable fan blades. The solar powered fan umbrella further comprises a standby umbrella component. In the solar powered fan umbrella, standby umbrella cloth is arranged, so that the use of the umbrella by multi-users is facilitated; the first fan component is arranged in the umbrella, so that a fanning function is added for the umbrella; the fan blades of a fan are foldable; a resistive heater of a second fan component, which is used for providing hot wind, is arranged in the umbrella handle, so that a user can use the umbrella in winter conveniently; thesolar film battery panels are arranged on the main umbrella cloth, so that the solar film battery panels can be used for receiving solar power conveniently, and then the solar film battery panels canalso be used for charging storage batteries by the solar power, so as to enable the fan to work, therefore, the umbrella is environmentally-friendly and energy-saving.

The invention discloses steel bar spraying equipment for a wave-type anti-stirring bridge. The steel bar spraying equipment structurally comprises a trolley, an air compressor, a filter pressure stabilizer, an air pipe, a spray gun, a material storage barrel and a pneumatic stirrer. The steel bar spraying equipment has the beneficial effects that a wave structure composed of an auxiliary anti-stirring mechanism and an anti-sticking plate is utilized to enable paint of the barrel wall to be quickly dropped under the action of gravity in the use process of the paint, so that the phenomenon thata paint film or caking occurs on the wall of the barrel wall in a large area is avoided; the auxiliary anti-stirring mechanism is used for intensively blowing the oil paint into the center of the barrel in parallel, an inner concave arc-shaped plate and a flat round-shaped body are located on the same horizontal line, and when the paint touches the flat round body under the action of air pressure,the paint is scattered to the two sides to be reversely stirred so as to reduce the bubbles inside the paint; and the rotation of a pneumatic stirrer and the horizontal line of the auxiliary anti-stirring mechanism are utilized, so that the oil paint is mixed and stirred under the cooperation of two strands of force, the paint is more uniform, and the air pressure generated by the auxiliary anti-stirring mechanism enables the oil paint to diffuse towards two sides to reduce air bubbles inside the paint when the paint touches the flat round body.

The invention provides a double-section bearing type normal-pressure tank truck which comprises a tank body, the tank body comprises a first liquid tank and a second liquid tank, the opposite sides ofthe first liquid tank and the second liquid tank are fixedly connected, a coaming is fixedly connected with the top of the outer surface of the tank body, and a truck frame is fixedly installed at the bottom of the outer surface of the tank body; a disc brake shaft is fixedly installed on one side of the bottom of the truck frame, hubs are fixedly connected with the front end and the rear end ofthe disc brake shaft, tires are arranged on the outer surfaces of the hubs, a supporting device is fixedly connected with the bottom of the outer surface of the tank body and located on one side of the truck frame, and stainless steel discharging pipe boxes are fixedly connected with the front side and the rear side of the outer surface of the tank body. According to the double-section bearing type normal-pressure tank truck, the disc brake shaft and the like are connected with the tank body through bolts, disassembly is convenient, and repair and maintenance are facilitated.

The invention relates to a pharmaceutical production content detecting device. The pharmaceutical production content detecting device comprises a box, a detecting mechanism, a heating mechanism and acleaning mechanism; the lower end inside the box is provided with a collecting box, above the collecting box is provided with a feeding mechanism, the detecting mechanism is embedded at the upper endof the feeding mechanism, the heating mechanism is connected inside the box, the cleaning mechanism is mounted inside the box, the upper end of the box is fixedly provided with a water tank, inside the water tank is provided with a water pump, and the output end of the water pump is provided with a water pipe. The pharmaceutical production content detecting device has the advantages that a conveying can drive reaction test tubes above to move horizontally, so that drug and reactants can be sequentially added into the reaction test tubes, the quantity of the reactants can be controlled according to the data signal change of weighing sensors at the front and the rear, further measuring and weighing the reactants in advance can be saved, and the problem of influence of advanced weighing on purity of drugs in reaction can be effectively solved.

The invention discloses an intelligent adhesion device for manufacturing. The intelligent adhesion device for manufacturing comprises a fixed plate, a fixed frame of a U-shaped structure is welded tothe top of the fixed plate, a groove is formed in the middle position of the top of the fixed plate, a conveying table is arranged inside the groove, push rod motors arranged in the vertical directionare installed on the top of the fixed frame, and the push rod ends of the push rod motors are fixedly connected with a connection plate arranged in the horizontal direction; and a movable plate arranged in the vertical direction is welded to the side, away from the push rod motors, of the connection plate, the movable plate is in sliding connection with the side wall of the fixed frame, a fixingtank is installed on the side, away from the fixed frame, of the movable plate, and a storage tank is installed on the inner wall of the top of the fixing tank. Under the combined effect of the components, a burette can adapt adhesive objects of different thicknesses, and excessive splash is avoided in the dropwise adding process of adhesive liquid so that waste can be avoided; and meanwhile, thedropwise adding quantity of the adhesive liquid each time can be accurately controlled, and the adhesive liquid can drip quickly to facilitate another dropwise adding.

The invention provides electrophoresis coating equipment for automobile door machining. The equipment comprises an electrophoresis tank body, a time control assembly and a placing assembly. The time control assembly is fixedly installed on the electrophoresis tank body, the time control assembly comprises a supporting frame, a fixing block is fixedly connected to the supporting frame, a sliding groove is formed in the fixing block, a control block is slidably connected to the interior of the sliding groove, and a triangular plate is fixedly connected to one end of the control block. The placing assembly is arranged at the bottom of the fixing block, and the placing assembly comprises a supporting plate. According to the electrophoretic coating equipment for automobile door machining, a connecting plate enters the electrophoretic tank body through an upper floating block to be kept in a horizontal state, and thus electrophoretic coating of an automobile door can be more uniform. The situation that when the depths in the electrophoresis tank body are inconsistent, voltage and temperature in the electrophoresis tank body are prone to being inconsistent, and consequently the uniformity of voltage coating of the automobile door is affected is avoided.

The invention discloses a digestion tube oil-bath placing device. The digestion tube oil-bath placing device comprises a main body framework with an opening in lower end, wherein a small grid chassiswhich is consistent with the main body framework is arranged in the main body framework; the small grid chassis can be movably connected onto the main body framework up and down; the side surface of the small grid chassis is connected with a pull rope; the other end of the pull rod passes through a buckling ring on the top of the main body framework and then is connected with a hanging ring; aftermoving, the hanging ring can be hung on a hanger; the hanger is fixedly mounted on the middle upper part of the main body framework; the top of the main body framework is equipped with a large grid chassis. The digestion tube oil-bath placing device can prevent the bottom of a digestion tube from being in contact with the bottom of an oil bath, and increases heating temperature uniformly; when boiling reagents such as sulfuric acid are added into the digestion tube, blasting caused by uneven heating is avoided, so that using safety is greatly improved; a lifting device which consists of the pull rope, the hanging ring, the hanger and the buckling ring is convenient and quick to operate, is simple in structure and is low in cost; the suspended digestion tube is better in ventilating effect, can quicken quick drop of oil liquid, and is convenient for cleaning the digestion tube.

The invention discloses an efficient environment-friendly sewage treatment sedimentation tank which comprises a shell, a sedimentation tank is arranged at the upper end of the shell, a stirring motor is mounted at the lower end of the shell, the tail end of an output shaft of the stirring motor extends into the sedimentation tank and is fixedly connected with a rotating rod, and a plurality of stirring rods are arranged on the outer wall of the rotating rod in the axial direction of the rotating rod. Telescopic plates are arranged on the inner walls of the left side and the right side in the precipitation tank, the telescopic ends of the two telescopic plates are jointly and fixedly connected with a filter screen, and the left side and the right side of the filter screen are elastically connected with the inner walls of the left side and the right side of the precipitation tank through third springs. When the sedimentation tank is used, dripping of sewage on the filter screen and impurities easy to wrap water is accelerated through shaking of the filter screen and extrusion of the impurities easy to wrap water, the falling speed of a flocculating agent is delayed through airflow, the adsorption efficiency of the flocculating agent is improved, meanwhile, bubbles are punctured through a pricking needle, impact force of bubble explosion is matched with stirring, and the flocculation effect of the flocculating agent is improved. The adsorption effect of the flocculating agent is further improved.

The invention discloses an environment-friendly air conditioner with an automatic cleaning function. The environment-friendly air conditioner comprises a casing, a cleaning device, a dust collection box and a control box, the cleaning device is arranged inside the casing, the dust collection box is arranged below the casing and closely connected with the same, and the cleaning device is connected with control device. Water is ejected through a small water tank, a cleaning agent is extruded through a cleaning agent containing box, dust on an air outlet is cleaned by a cleaning brush moving up and down at the air outlet, then sewage generated after cleaning flows into the dust collection box, so that dust and dirt after cleaning are effectively prevented from directly falling onto the ground, walls or other articles, secondary pollution is avoided, and good environment-friendly effect is realized.

The invention provides a dish-washing machine. The dish-washing machine comprises an inner container provided with a cleaning cavity and a dish basket arranged in the cleaning cavity, the dish basket is provided with a tableware storage area, the dish-washing machine further comprises a water tank, the water tank is communicated with the cleaning cavity, the volume of the water tank is 3-8 L, the inner surface of the top of the inner container is provided with a water gathering face, and at least part of the water gathering face is located over the tableware storage area. By means of the dish-washing machine, after water sprayed to the top of the inner container is dispersed, the water is gathered on the water gathering face when flowing to the water gathering face and drips on the back of tableware such as bowls and dishes on a bowl basket along the water gathering face so as to clean the back of the tableware on the bowl basket; particularly for a miniaturized dish-washing machine, due to the fact that less water is in the inner container, meanwhile impact force of water is small, by designing the water gathering face structure on the top of the inner container, limited water in the inner container can be fully utilized, and a better cleaning effect can be achieved.

The invention discloses an ultrasonic cleaning machine in the technical field of ultrasonic cleaning. The ultrasonic cleaning machine comprises a cleaning machine body, wherein a cleaning bin, an air drying bin and a water tank are arranged on the left side and the right side of the upper end of the cleaning machine body, a carrying plate is fixedly connected to the upper ends of two sets of hydraulic rods, a lead screw is rotationally arranged at the position, located at the upper end of the carrying plate, in the cleaning bin, a push plate sleeves the outer side of the lead screw in a threaded mode, a filter screen is fixedly connected to the inner side of a fixing frame, a first rotating shaft is rotatably arranged at the lower end of the filter screen in the air drying bin, a cam fixedly sleeves the outer side of the first rotating shaft, the power end of a second motor penetrates through the air drying bin and is fixedly connected to the first rotating shaft, and an opening penetrates through a partition plate and is located at the upper end of the fixing frame. According to the invention, cleaning components can be automatically pushed out of a cleaning bin through a simple mounting structure, so that the working efficiency is greatly improved, and the workload of workers is reduced; and the cleaned components can be rapidly air-dried by arranging a shaking structure, so that the practical effect is good, and the ultrasonic cleaning machine is worthy of being popularized and used in the existing market.

The invention discloses a conveniently and fast assembled shelf and a placing method thereof. The shelf comprises a left shelf sheet and a right shelf sheet, wherein reinforcing edge blocks are arranged on the left side and right side of the left shelf sheet and right shelf sheet. The method comprises the following steps of: 1) assembling a suspension frame; 2) placing the shelf; 3) mounting the suspension frames and the frame bodies. According to the invention, the integral structural strength of the shelf can be effectively increased through the design of the reinforcing side blocks, so thatthe shelf is not easy to deform completely; and the design of disassembly and assembly between the shelf sheets is achieved through the mutual matching between connecting pieces and the reinforcing side blocks, so that the number of the assembled shelf sheets can be adjusted according to the number of the breeding of the eggs, and the breeding of the eggs is more scientific; meanwhile, when placed, the shelf is suspended through the suspension frames, and due to the limitation of the length of a limiting inserting plate, the front and rear surfaces of adjacent suspension frames are mutually abutted, and a gap exists between the front and the rear surfaces of the adjacent suspension frames, so that the air circulation in the process of suspending the shelf is ensured.

The invention provides a heat exchange tube and an air conditioner. The heat exchange tube comprises a tube body and fins arranged on the outer side of the tube body, longitudinal tooth structures areformed on the tops of the fins, transverse tooth structures are formed on the side portions of the fins, between every two adjacent fins, and the transverse tooth structures on the two fins are arranged in a staggered mode in the vertical direction to form a zigzag evaporation cavity. Due to the fact that the heat exchange tube is provided with the zigzag evaporation cavity, compared with an existing heat exchange tube which can form a plurality of small evaporation cavities, more evaporation cores can be provided, more bubbles are generated, meanwhile, due to the semi-sealing performance ofthe zigzag evaporation cavity in the discharging process of the bubbles, and refrigerants in the cavities are subjected to the strong turbulent flow effect; and according to heat exchange tube, due tothe fact that the transverse tooth structures are arranged in the staggered mode, the paths of bubbles at the roots of the fins change continuously in the discharging process, the turbulent flow effect is further enhanced, and the evaporation efficiency is improved.

The invention provides an injector of a pipeline-free automatic liquid dropping machine. The injector comprises a push handle, a cylinder body and a transfusion needle, and further comprises a dish-shaped device, the dish-shaped device is a hollow cylinder which extends in the axial direction of the cylinder body, and is located above the cylinder body, a cylindrical guiding ring is arranged where the lower end face of the dish-shaped device extends downward, the cylindrical guiding ring is sleeved with the upper end of the cylinder body in a tightly matched mode, the upper end of the outer side face of the dish-shaped device is an upper conical face which dwindles from bottom to top, and the lower end of the outer side face of the dish-shaped device is a lower conical face which dwindles from top to bottom; the outer side wall of the transfusion needle is provided with a non-hydrophilic structure. According to the injector of the pipeline-free automatic liquid dropping machine, the stability of clamping and the repeatability of a clamped pose is guaranteed when the injector is clamped, the deformation quantity of the injector is reduced, and achievement of precise and reliable titration is benefited; through the match of the on-hydrophilic structure of the transfusion needle, the surface friction of the transfusion needle can be reduced, fast dripping of adhered liquid on the surface of the injector is guaranteed, and the problem of titration errors due to liquid dripping in the liquid titration process is avoided.

The invention relates to a drying device and system. The drying device comprises a cold and heat source, a heating box, a condensing box and a condensate water return device. The heating box is arranged in the condensing box, a heating jacket and a condensing jacket are correspondingly arranged on the outer wall of the heating box and the outer wall of the condensing box correspondingly, cold water and hot water generated by the cold and heat source communicate with the condensing jacket and the heating jacket through conveying pipelines correspondingly, the upper end of the heating box is open, materials to be heated are contained in the heating box, and the condensate water return device communicates with the condensing box. Cold water and hot water generated by the cold and heat source are supplied to the jacket of the condensing box and the jacket of the heating box correspondingly, then materials in the heating box are heated, steam generated in the heating process overflows from the upper end of the heating box, is condensed and dripped after encountering the inner wall of the condensing box and then is discharged to the condensate water return device, so that water in the heating box is rapidly boiled and condensed, the whole device is in high drying efficiency, and therefore the dewatering efficiency is improved, meanwhile, the structure is simple, and the whole device is efficient and energy-saving.

The invention relates to the technical field of kitchen utensils, and discloses a kitchen utensil automatic drainage storage device, which comprises a flat plate and a machine shell, wherein a supporting rod is fixedly connected to the surface of the flat plate, a square block is slidably connected to the interior of the supporting rod, a first long rod is slidably connected to the interior of the square block, and a first notch is formed in the surface of the first long rod; a sliding rod is slidably connected to the surface of the first long rod and located in the first notch, a first stop block is fixedly connected to the bottom of the sliding rod, and a control rod is fixedly connected to the bottom of the first stop block. According to the automatic drainage storage device, an air bag drives a second push rod to slide in a machine shell through a fourth long rod, a movable contact makes contact with a fixed contact, and meanwhile an electromagnetic device drives a container to move upwards in the machine shell by repelling a first magnetic block, so that a notch in the right side of the first magnetic block is leveled with a water pipe; therefore, the residual water in the container is automatically discharged out of the cupboard through the water pipe, so that the effect of automatic drainage is achieved.

The invention discloses a digestion tube oil-bath placing device. The digestion tube oil-bath placing device comprises a main body framework with an opening in lower end, wherein a small grid chassiswhich is consistent with the main body framework is arranged in the main body framework; the small grid chassis can be movably connected onto the main body framework up and down; the side surface of the small grid chassis is connected with a pull rope; the other end of the pull rod passes through a buckling ring on the top of the main body framework and then is connected with a hanging ring; aftermoving, the hanging ring can be hung on a hanger; the hanger is fixedly mounted on the middle upper part of the main body framework; the top of the main body framework is equipped with a large grid chassis. The digestion tube oil-bath placing device can prevent the bottom of a digestion tube from being in contact with the bottom of an oil bath, and increases heating temperature uniformly; when boiling reagents such as sulfuric acid are added into the digestion tube, blasting caused by uneven heating is avoided, so that using safety is greatly improved; a lifting device which consists of the pull rope, the hanging ring, the hanger and the buckling ring is convenient and quick to operate, is simple in structure and is low in cost; the suspended digestion tube is better in ventilating effect, can quicken quick drop of oil liquid, and is convenient for cleaning the digestion tube.

The invention relates to an efficient building rainwater recycling system, and relates to the technical field of rainwater recycling. The efficient building rainwater recycling system comprises a house body and a support arranged on the top of the house body, a water receiving hopper is arranged on the support, a water inlet is formed in the top end of the water receiving hopper, a water outlet is formed in the bottom end of the water receiving hopper, and a hose is connected to the water outlet. A water storage tank is connected to the end, away from the direction of the water receiving hopper, of the hose, a water flowing groove is formed in the top end of the water receiving hopper in a penetrating mode, a plurality of water receiving rods are arranged in the water flowing groove in a sliding mode, a waterproof film is fixedly arranged between every two adjacent water receiving rods, and a sliding assembly is arranged on the water receiving hopper. The water receiving range of the water receiving hopper is enlarged, the water receiving efficiency in unit time is improved, and the energy-saving and environment-friendly effects are achieved.

The invention relates to the technical field of the transformer of power distribution equipment and provides an anti-condensation box-type transformer, thereby solving a problem that the existing outdoor box type transformer is affected with damp easily. The anti-condensation box-type transformer comprises a transformer body and a box-type transformer box body. A pedestal arranged at the bottom of the box body is supported by standing posts having concrete structures; the standing posts and the pedestal are fixedly connected; and the plane where the lowest side of the bottom of the box body is located is higher than the ground. Besides, the box-type transformer also includes side plates arranged between the adjacent standing posts; the standing posts and the side plates form the prefabricated space below the box body; the box-type transformer box body is arranged above the space. Ventilating grilles are arranged at the two longitudinal side plates of the prefabricated space below the box body; and air blowers are arranged inside the prefabricated space and are arranged at the inner sides of the ventilating grilles specifically. The anti-condensation box-type transformer is designed reasonably. Condensation formed at the bottom of the box body can drip rapidly to avoid drop deposition. Besides, the bottom surface of the box body is coated with a waterproof composite material, so that the waterproof and corrosion-resistant performances of the anti-condensation box-type transformer can be enhanced and the service life can be prolonged.

The invention provides circuit board elastic sheet welding equipment, which relates to the technical field of circuit board production and comprises a workbench with a horizontally placed workbench, atransverse clamping groove is formed in the middle of the top end of the workbench, and circuit board supporting clamping blocks erected at the top end of the workbench are symmetrically arranged inthe middle of the top end of the workbench and located at the two ends of the clamping groove. The circuit board is vertically installed at the top end of the workbench, the bottom end of the circuitboard is clamped in a clamping groove in the top end of the workbench, and the front side and the rear side of the circuit board are symmetrically clamped on circuit board supporting clamping blocks at the two ends of the clamping groove. According to the invention, the clamping plates are symmetrically pulled through the tension springs on the two sides, so that after the clamping plates are awayfrom the outer circle faces of the elastic pieces, the clamping plates are always balanced and centered at the top end of the second supporting rod, so that when the clamping plates clamp the elasticpieces next time, the attaching tightness of the clamping plates and the outer circle faces of the elastic pieces is improved, and the situation that the clamping plates swing disorderly, and consequently the clamping plates cannot be attached to the elastic pieces is avoided.

The invention discloses a piston-type constant temperature calorimeter, which relates to the field of analytical instruments for the calorific value of combustible substances, and comprises an inner cylinder (1), an oxygen bomb (2), an outer cylinder (3), a machine cover (4) and a machine The shell (5), the middle cylinder (6) is arranged between the inner cylinder (1) and the outer cylinder (3), the space between the inner cylinder (1) and the middle cylinder (6) is hollow, and the casing (5) is provided with a positioning device (7), a piston (8) is arranged under the machine cover (4), the upper and lower surfaces of the piston (8) are arc-shaped convex surfaces, and the position where the piston (8) contacts the inner cylinder (1) is provided with a sealing ring (9) , the bottom of the piston (8) is provided with an ignition electrode (10), the inner cylinder (1) is provided with a temperature measuring probe (11) and an inner cylinder stirring mechanism (12), and the outer cylinder (3) is provided with an outer cylinder stirring mechanism ( 13). The piston-type constant-temperature calorimeter of the invention can perform accurate and fast water quantification during measurement, and improves the measuring accuracy and measuring efficiency of the calorimeter.