33results about How to "Fast drip" patented technology

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 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 the field of livestock breeding and in particular to an ecological henhouse. The ecological henhouse comprises an accommodation area, a chicken shed, an outdoor playground, turning plates, side beams, chutes and spray headers, wherein a sidewalk separated by fences is formed in the middle of the accommodation area; the accommodation area is separated into a first area and a second area by the sidewalk; a feeding trough close to the fences is formed in the sidewalk; a bottom frame is arranged below the accommodation area; the fences are fixed on the bottom frame; the chicken shed is adjacent to the accommodation area; channels are formed between the chicken shed and the first area and the second area; doors are arranged at two ends of the channels; the outdoor playground is positioned on two sides of the accommodation area; doors are formed between the playground and the first area and the second area; and the playground is encircled by the fences. The invention aims to provide the ecological henhouse, so that the technical problems in the prior art that cleaning is inconvenient in the hybrid breeding process of chickens and sheep and cross infection is easily caused due to hybrid breeding of the chickens and sheep are solved.

The invention provides a circuit board shrapnel welding equipment, which relates to the technical field of circuit board production, comprising a workbench placed horizontally, a horizontal card slot is opened in the middle of the top of the workbench, and the middle of the top of the workbench is The two ends of the card slot are symmetrically provided with circuit board support blocks upright on the top of the workbench. The front and rear sides are symmetrically clamped on the circuit board support blocks at both ends of the card slot; the clamping plate of the present invention is pulled symmetrically by the tension springs on both sides, so that the clamping plate is always balanced and centered on the second The top of the support rod is so that when the clamping plate clamps the shrapnel next time, the tightness between the clamping plate and the outer circular surface of the shrapnel is improved, and the clamping plate is prevented from swinging randomly, which will cause the clamping plate to fail to fit the shrapnel.

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 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.