75 results about "Head drop" patented technology

A training aid is attached to the rear region of a user's helmet and alerts the player with an audible beep when the player's head drops into a downward unsafe or improper position. A printed circuit board containing a horn, battery and tilt switch is located within a protective housing attached by an adhesive to the rear region of the player's helmet. An external switch enables the player to manually turn the circuit ON or OFF.

An upflow stormwater filter has horizontally aligned filter media to provide a high throughput for treatment of contaminated water, longer life to filter media, and without material head drop.

A water-cooling heat pump typed multi-connected air-conditioning unit comprises a compressor, an oil separator, a four-way valve, an outdoor heat exchanger, an outdoor electronic expansion valve, a liquid receiver, a liquid valve, a gas valve, a plurality of indoor electronic expansion valves, a plurality of indoor heat exchangers and a gas-liquid separator which are connected through pipes. The multi-connected air-conditioning unit is characterized in that the outdoor heat exchanger is a water-cooling heat exchanger; the pump unit comprises an oil-return device in the outdoor heat exchanger, and a subcooler. The outdoor heat exchanger of the invention adopts a water-cooled heat exchanger, which significantly increases the energy efficiency ratio of the pump unit, reduces the external dimension of the pump unit. The oil-return device in the outdoor heat exchanger ensures the pump unit to have good oil-return characteristics in thermo-producing conditions, thus realizing the safe and reliable running of the pump unit. The subcooler can prevent instantaneous vaporization of the refrigerant during long-range transmission, thus maintaining the stable and reliable economic running of the pump unit under high head drop of a long connecting pipe.

The invention discloses a device of neodymium iron boron automatic suppressing orientation forming. The device of the neodymium iron boron automatic suppressing orientation forming comprises a fixed mould, a movable mould, an electromagnet and a magnet exciting coil. The fixing mould comprises a metal mould sleeve and a rubber mould arranged in the metal mould sleeve. The movable mould comprises a steel upper pressing head and a rubber upper pressing head fixed below the steel upper pressing head. A method is further provided at the same time. The method includes the following steps that the rubber upper pressing head drops when the upper end surface of the rubber mould is filled by magnetic powder. An orientation magnetic field drops to zero when density of a magnet blank meets the requirement. A demagnetization magnetic field is provided and the demagnetization magnetic field drops to zero. Production cost is reduced. Demoulding is simple. Pressure can be improved when the device of neodymium iron boron automatic suppressing orientation forming is pressed. The problem of demoulding is not needed to be worried about. The prior isostatic pressing process can be achieved at the same time when the device of neodymium iron boron automatic suppressing orientation forming is pressed. Two steps of the existing technology on the same platform device are achieved. Production efficiency is greatly improved.

The invention relates to a method for laser cladding for an abrasion-resistant and etch-resistant coating of a water turbine set bottom ring. The method is characterized by comprising the following steps of: welding an oblique angled process ring at a right angle where the inner ring surface of a leak-preventing ring of the bottom ring is jointed with an abrasion-resistant plane by using a nickel-based welding wire; removing oil and rust from a machined surface; marking subareas of a machined area; inspecting the machined places of an abrasion-resistant plate of the inner ring surface of the leak-preventing ring of the bottom ring and a plane abrasion-resistant plate by a dye penetrant inspection method; selecting iron-based alloy powder; making the alloy powder out from an automatic powder feeding head drop into a laser weld pool by using laser equipment and adjusting an automatic powder feeding device; regulating the powder feeding amount to make the thickness of an alloy powder coating between 0.2 and 1.8mm; and inspecting the machined places of the abrasion-resistant plate of the inner ring surface of the leak-preventing ring of the bottom ring and the plane abrasion-resistant plate by the dye penetrant inspection method. The laser cladding alloy coating is uniform and compact, has firm metallurgical bonding with a substrate and has high abrasion resistance and etch resistance.

The invention relates to a method and a device for generating power for illuminating of corridor lamps by using a sewage pipeline of a high-rise building. The method is characterized in that a coarse dirt separating pipe, a generator, a water wheel pipe, a controller and a storage battery set are installed on the sewage pipeline of a first floor or a basement of the high-rise building, and LED sound-operated and light-operated corridor lamps are installed at the top of each corridor; and a water wheel of the generator is driven to rotate for power generation by utilizing the head drop of sewage in the sewage pipeline of the high-rise building, thereby providing free electric energy for the corridor lamps of the high-rise building. The method has no influence on normal discharge of the sewage in the sewage pipeline and can also provide life convenience for residents by utilizing the discharged sewage for power generation, thereby being a good method which realizes energy saving and emission reduction and is beneficial for countries and people.

The invention discloses a sitting posture recognition desk lamp system and recognition method based on machine vision, and solves the problems that an existing desk lamp has no sitting posture correction function, or poor sitting postures cannot be distinguished by the sitting posture correction function, and targeted reminding cannot be performed. The system comprises a desk lamp side and a server side, the desk lamp side comprises a desk lamp, a camera, a controller, an upper computer, a reminder and a communication module, and the camera, the controller, the upper computer, the reminder andthe communication module are arranged in the desk lamp. The system acquires images, extracts coordinate information of human standard characteristic target point positions from the images, performs calculation and then recognizes and judges sitting postures of users according to preset conditions. The system is simple and reasonable and reminds the users of correcting wrong sitting postures. Theangle of the camera can be automatically adjusted, and the images are more effectively acquired to recognize the sitting postures. Humpback, head drop, head raising, head leaning and tilting behaviorsare judged according to the extracted human standard characteristic point positions, the poor sitting postures of humans can be more meticulously distinguished, and the users are reminded in a targeted manner.

A screwdriver is convenient for changing driver heads. A button is released to drive an arm of the screwdriver in a first position to grasp a fixing portion of the driver head. The button is pressed to drive the arm to rotate from the first position to a second position to deform an elastic member, with the arm releasing the driver head to make the driver head drop out of the handle. Each of the driver head can be easily mounted to the screwdriver, and detached from the screwdriver.

The invention provides a clamping system and a method for avoiding impacting a machine. The clamping system for avoiding impacting a machine comprises at least one clamping mechanism, an equipment controller and at least one interface terminal. The clamping mechanism is used for grabbing and shifting an object grabbed. Each clamping mechanism comprises a plurality of clamping heads and a plurality of sensors. The equipment controller is used for immediately stopping the operation of relevant equipment in a production-line when the sensors detect that the grabbed object or part of the grabbed object clamped by the clamping heads drops, so as to prevent the grabbed object or part of the grabbed object from interfering with other mechanisms to cause the impact on a machine when dropping from the clamping mechanism. Each interface terminal is corresponding to at least one sensor and is connected with the corresponding sensor; the interface terminals are connected with each other or with the equipment controller by a control and communication link bus. The clamping system and the method can effectively avoid the damage of equipment caused by the dropping of the object grabbed and grab and shift an object with damaged edge more safely.

The invention provides a pair of myopia prevention and treatment glasses for controlling a head position and a sitting posture, and relates to the technical field of glasses for correcting the bad sitting postures of students and preventing and treating the myopia of the students. The glasses are provided with a posture correction watching region and non watching regions, wherein the posture correction watching region is a through hole or a lens; the posture correction watching region is positioned on the lower part and/or the upper part of a horizontal vision line of a glasses frame; the nearest distance between the posture correction watching region and the horizontal vision line of the glasses frame is 0-22 mm; and other regions are the non watching regions. A wearer develops good learning and working eye-utilization habits by controlling the head position and the sitting posture, so that extremely good effects of suppressing, recovering and preventing the myopia can be achieved; bad postures such as wryneck, head drop, lookdown, strabismus and crouch down of the wearer can be well corrected; and multiple cervical vertebra relevant diseases can be prevented. The myopia prevention and treatment glasses are simple in structure and convenient to use, do not need any accessory devices, can prevent and treat the myopia and have a good effect and quick response. The myopia prevention and treatment glasses are particularly suitable for prevention, treatment and correction for the myopia of the youth.

The invention relates to a neck nursing device, and effectively solves the problem that an existing device cannot relieve chronic strain caused by head drop work in daily life and work. According to the technical scheme for solving the problems, two semicircular guard plates can be spliced and wrap the neck of a person; and the device is characterized in that guard plate air bins are formed in thetwo guard plates correspondingly, lower jaw supporting plates are connected to the interiors of the two guard plate air bins in an up-down sliding mode correspondingly, miniature air pumps are fixedly connected to the interiors of the two guard plates correspondingly, one ends of the two miniature air pumps communicate with the corresponding guard plate air bins, and the other ends of the two miniature air pumps communicate with outside air through guard plate air outlets. The device is simple in structure and convenient to operate, can effectively reduce cervical vertebra deformation and cervical vertebra fatigue possibly caused by long-time head drop work and protect the cervical vertebra of a head drop worker, and is high in practicability.

The invention discloses a traditional Chinese medicine composition for treating radioactive spinal-form encephalomyelopathy. The traditional Chinese medicine considers that the disease is represented as neck spinal cord traverse damage of different degrees. Head drop electrical sensation disease has the clinical manifestation of progressivity, ascending and symmetry. This type of symptom is discriminated by traditional Chinese medicine as being caused by spleen deficiency, damp obstruction and meridian estrangement. Thus, traditional Chinese medicine of corncob, beautiful galangal fruit, trema cannabina, Siberian elm bark, fructus gleditsiae, calamus, pinellia ternate, edible tulip, antares grass root and rice galingale herb with functions of tonifying spleen, eliminating dampness and removing phlegm and dredging collaterals are prepared to be traditional Chinese medicine decoction. A clinical test proves that the curative effect is remarkable, the total effective rate of treatment group is 95%, the total effective rate of control group is 75%, the total effective rate of the treatment group is obviously higher than that of the control group; besides, the traditional Chinese medicine composition has no toxic and side effect, and is low in treatment cost and worthy of clinic popularization and application.

The invention discloses a control system integrated on a steering wheel and based on the Bluetooth technology, which comprises a Bluetooth wireless signal transmission circuit and a Bluetooth wireless signal receiving circuit. The Bluetooth wireless signal transmission circuit comprises a keyboard, a keyboard control circuit, a controller module, a Bluetooth wireless signal transmission module, a voltage converter and a battery, and the Bluetooth wireless signal receiving circuit comprises a Bluetooth signal receiving module, a controller module, an eight-path D-type latch, a decoder, a controller expanding module, a liquid crystal display circuit, a controller area network (CAN) bus control module and a CAN bus driving module. The control system integrated on the steering wheel and based on the Bluetooth technology leads most operations commonly used in a driving process to be achieved conveniently on the steering wheel, overcomes defects for looking for switches through head dropping in a traditional driving process, simultaneously leads operations of an automobile electronic control system to be more convenient by using the Bluetooth wireless transmission technology.

The invention provides a water flow generating set which comprises an idler wheel and a generator, wherein, the idler wheel is composed of an idler wheel axel and a plurality of rectangular or foursquare rolling plates with same size which are evenly distributed on the idler wheel axel along the idler wheel axel direction and accord with the water flow and the power generation requirements of the generator; the idler wheel is connected with the rotor of the generator by the idler wheel axle; water flow pushes the idler wheel and the rotor of the generator to rotate by lashing the rolling plates on the idler wheel so as to realize the transformation of hydraulic energy of water flow to electrical energy. The hydro generating set of the invention can transform the hydraulic energy of water flow efficiently, and especially transform the hydraulic energy of water flow without head drop, thus realizing the high-efficient and broad transformation and utilization of the hydraulic energy of water flow, especially the hydraulic energy of water flow without head drop.

The invention relates to a C-shaped thin piece molding device which comprises a lower mould base and an upper mould base, wherein the upper mould base is located above the lower mould base and can be lifted and move in a reciprocated mode, a mould head is fixedly arranged at the lower end of the upper mould base, the cross section of the mould head is T-shaped, a hollow mould frame is arranged on the lower mould base, a pair of swing concave moulds are arranged inside the mould frame, the lower ends of the swing concave moulds are rotatably arranged on the inner wall of the mould frame through rotating shafts, each of the opposite surfaces of the swing concave moulds is provided with a molding concave groove, the lower mould base is provided with an elastic mechanism which drives the swing concave moulds to swing, a bearing block used for bearing a thin piece is arranged between the swing concave moulds, the bearing block is driven by an ejector rod which penetrates through the body of the lower mould base to lift and move, the bearing block is provided with a pressing-fit extending block which is in press fit with the swing concave moulds, and the mould head drops, is matched with the bearing block and is located between the swing concave moulds. The C-shaped thin piece molding device is simple in structure, reasonable in design, low in manufacturing cost, good in effect and high in efficiency, and the once molding from the thin piece to the C shape is finished.

A metal rack inserted type broom with a replaceable sweeping head comprises a broom handle and the sweeping head, wherein the sweeping head is composed of brush bristles and a brush holder, and a movable connecting portion is arranged between the broom handle and the sweeping head. The metal rack inserted type broom is characterized in that the movable connecting portion comprises a broom holder and the brush holder capable of being inserted into the broom holder, wherein the broom holder is fixedly connected with the lower end of the broom handle, the lower portion of the broom holder is provided with a groove, a cross section of the groove is in a shape of an inverted Chinese character 'tu'. The brush holder is a cubic convex block matched with the groove of the broom holder tightly, and the brush bristles are arranged under the brush holder. A triangular reinforcing piece is arranged at the connecting position of the broom handle and the broom holder, and the broom handle, the reinforcing piece and the broom holder are made of metal. The sweeping head of the broom is movably connected with the broom holder, after the brush bristles of the sweeping head drop or are damaged, the broom can be continuously used only by replacing the sweeping head, and waste and environment pollution caused by the fact that the whole broom is replaced are avoided.

The invention discloses a horizontal type hydroelectric generator system which comprises an outer shell, hydroelectric receivers and generators, wherein the outer shell comprises two or more integrated prismatic tables, and a water sump for regulating water depth and balance is arranged in the outer shell; a plurality of generators are installed in the outer shell, and a plurality of hydroelectric receivers are installed on the outer shell. The horizontal type hydroelectric generator system has the advantages of low technical requirements, simple structure, easy manufacturing, easy assembly, low cost, firmness, durability, easy maintenance, zero head drop, zero power consumption and zero emission; and the horizontal type hydroelectric generator system is applicable to river and sea water areas with water flow, the natural resources and space can be effectively utilized as much as possible, water resource sharing in all aspects and environment protection are taken as chief principles, water resources do not need to be completely occupied and cut off, and the normal running of sea channels is not influenced.