37results about How to "Sensitive work" patented technology

The invention relates to a device for preventing mud sand from entering the bottom end of a buoyancy vertical pipe of a net cage frame, and relates to technical equipment of cultivation net cages. The device is in a shape of a cylinder of which the opening is upwards, and a lower opening of the cylinder is provided with an elastic cover plate; a plurality of vertical edges are distributed in the cylinder uniformly in a radial shape; outer edges of the vertical edges are connected with the inner wall of the cylinder, inner edges of the vertical edges are connected with the outer wall of an annular nut in the cylinder; inner edges of a part in which the vertical edges are positioned above the nut incline towards the inner wall of the cylinder, and inner edges of a part in which the verticaledges are positioned below the nut are connected the outer wall of a bottom plate; the vertical edges form a vertical through hole and a traverse through hole for opening on the bottom plate; the traverse through hole is communicated with an inner cavity of the nut and a central through hole of a valve plug of a water inlet/drainage valve; the lower part of the valve plug of the water inlet/drainage valve is in threaded connection with the nut, and the upper part of the valve plug of the water inlet/drainage valve is fixedly arranged at an opening in the center of the bottom end of the buoyancy vertical pipe; and a top surface of the valve plug of the water inlet/drainage valve is in an inverted conical shape. The device is scientific and reasonable in design and stable and reliable in operation; and when the net cage sinks to the sea bottom, the mud sand can be prevented from entering the buoyancy vertical pipe, and the water inlet/drainage valve is not blocked, so that the water inlet/drainage valve operates flexibly and normally, and a self-balancing sink-float function of the net cage is stable and reliable.

The invention relates to the field of engineering bionic technology, in particular to bionic sharkskin making use of a shape memory alloy artificial muscle longitudinally-injected drag reducer. The bionic sharkskin making use of the shape memory alloy artificial muscle longitudinally-injected drag reducer comprises a supporting base, a hardened conductive layer I, artificial muscle flexible units, a hardened conductive layer II, a shark scale imitation skin layer and a drag reducer longitudinal injection device, wherein each artificial muscle flexible unit comprises a shape memory alloy artificial muscle spring, a pulling head, a two-section electric heating rod and a connection conductive wire, and each shape memory alloy artificial muscle spring has a certain amount of supporting strength. Compared with the prior art, the bionic sharkskin making use of the shape memory alloy artificial muscle longitudinally-injected drag reducer has the advantages that by the adoption of the design of shape memory alloy artificial muscle, a micro mucus secreting mechanism of the sharkskin is simulated by means of the unique material characteristic that the double-trip memory effect is presented under the driving of transformation temperature of the shape memory alloy artificial muscle, the working mode and control method of injecting a micro amount of the drag reducer are more sensitive, controllable and reliable compared with existing means, service life is guaranteed effectively, and a beneficial example is provided for the engineering bionic technology, especially the bionic drag reduction skin manufacturing technology, in the aspect of structure and function bionics.

The invention discloses an electromagnetic drainer, which comprises a drain pipe and a control unit, wherein the control unit comprises a magnetic field generating device sleeved outside the drain pipe and used for generating a magnetic field, and a sliding unit capable of sliding in the drain pipe vertically; the sliding unit comprises a connecting frame, two magnets arranged on the upper and lower parts of the connecting frame and a sealing unit sleeved with the connecting frame and matching the drain pipe; the magnets corresponds upper and lower ends of the magnetic field generating deviceand the electric field generating device generates magnetic field acting force which applies to the upper and lower magnets in the same direction; and the sealing unit selectively seals or switch on the end port of the drain pipe under the magnetic field acting force along the polarity change of the magnetic field generating device and the two magnets. The drainer is attractive in appearance, compact in structural matching, and more sensitive in work.

The invention discloses a lifting limiting device for a steel wire rope on a winding drum. The lifting limiting device comprises the winding drum, a winding drum support, a platform, the steel wire rope and a power device, wherein one side of a mandrel of the winding drum is connected to the power device, the other side of the mandrel of the winding drum is connected to the winding drum support, the steel wire rope is connected to the winding drum, the winding drum support and the power device are fixed to the platform, one end of the steel wire rope vertically extends downwards to the position below the platform after being led out from the winding drum, two lifting limiting device bodies are arranged on the side, from which the steel wire rope led out, of the winding drum and are distributed on the two sides of the vertical downward part of the steel wire rope, supports of the two lifting limiting device bodies are fixed to the platform, and contact handles of limiting switches on the lifting limiting device bodies can make contact with the steel wire rope.

The invention relates to a liquid storage tank with a resistance heater. The resistance heater is connected to the outer edge of a liquid storage tank body, the resistance heater is connected with a liquid storage tank pressure controller and a liquid storage tank temperature protector separately, and the liquid storage tank pressure controller and the liquid storage tank temperature protector areconnected with the liquid storage tank body separately. The liquid storage tank temperature protector includes a shell, and end opening of the liquid storage tank body is sealed, a temperature fuse is arranged inside the shell, and the temperature fuse is electrically connected with an insulated wire through a terminal; and in addition, a hygroscopic filler is arranged inside the shell.

The invention relates to a light-type self-power-off electromagnetic ball valve. The electromagnetic valve comprises a valve body, a ball body, a valve seat, a valve rod, a filler, a pressing nut, a manual device, an actuator and a valve position display, wherein the valve body is fixedly arranged at the bottom of the electromagnetic ball valve, the valve seat is fixedly connected with the valve body, and the ball body is arranged in the valve body; the actuator is arranged on the upper portion of the valve body, the actuator is shaped like a box, and an explosion-proof layer is arranged in the actuator; a box body of the actuator is further provided with an automatic and manual device, one end of the valve rod is fixedly connected in the actuator, and the other end of the valve rod is connected to the valve body; and the outer side of the valve body is provided with the filler, and the filler is ethylene propylene diene monomer rubber. The light-type self-power-off electromagnetic ball valve is simple in structure, green, environmentally friendly, small in water discharge amount, good in sealing performance, free of leakage, wide in application range, wide in application range, sensitive in response, stable in work and long in service life.

The invention discloses an environment-friendly and energy-saving type range hood which comprises a range hood main body; an environment-friendly smoke treater is arranged on the side surface of the range hood main body; a fan and an exhaust outlet is arranged at and formed in the top end of the environment-friendly smoke treater; the fan and the exhaust outlet are fixedly connected with the environment-friendly smoke treater through the range hood main body; a safety alarm device made of high-temperature resistant aluminum alloys is arranged on one side of the exhaust outlet, and is electrically connected with the range hood main body; and an intelligent water tank is arranged at the bottom of the safety alarm device, and is welded with the range hood main body. The environment-friendly and energy-saving type range hood is small, exquisite and compact in structure, and has good moisture resistance and the excellent smoke suction property; and the technical content is needed to be increased and technological innovation is needed to be strengthened to increase environmental awareness, so as to solve the air pollution problem caused by oil smoke emissions in China, and to bring a kitchen environment and a natural environment which are comfortable and clean to people.

The invention discloses a steel structure coating painting device and a construction method and relates to the technical field of building construction. The steel structure coating painting device comprises an upper supporting frame and a lower supporting frame. The upper supporting frame is fixedly connected with the lower supporting frame through connecting pieces. The upper supporting frame andthe lower supporting frame are both provided with telescopic connecting rods. A rolling brush is arranged at one end of each telescopic connecting rod. The bottom of the lower supporting frame is provided with an intelligent controller. The intelligent controller can control the telescopic connecting rods to move up and down. The steel structure coating painting device can control the telescopicconnecting rods to move the rolling brushes through the intelligent controller. Accordingly, the steel structure coating painting device achieves the functions of painting a steel structure without artificial intervention in the whole process and achieves automation.

The invention relates to a micro semi-automatic ball valve which comprises a hand wheel, an actuator, a valve rod, a valve body, a ball core, a valve seat, a seal ring and observation windows. The valve body is arranged on the top part of the ball valve; the valve body comprises an inlet and an outlet symmetrical left and right; the valve seat is arranged in the middle in the valve body; the ballcore is arranged on the valve seat; the valve rod is vertically arranged in the valve body; one end of the valve rod is connected onto the ball core; the other end of the valve rod is connected onto an output shaft of the actuator; the actuator is arranged on the upper part of the valve body; the hand wheel is connected to the upper part of the actuator; the multiple observation windows are arranged on the top part of the actuator; and the seal ring is arranged in the valve body. The micro semi-automatic ball valve provided by the invention is simple in structure, environmental-friendly, smallin water discharge, good in sealing performance, zero-leakage, wide in application range, wide in appropriate temperature range, sensitive in reaction, stable in working, and long in service life.