50results about How to "High damage rate" patented technology

The invention discloses a settling separation device for phytoplankton. The settling separation device comprises an acrylic sleeve, an upper cover plate and a lower cover plate fixed with each other, wherein an upper cover plate hole is formed on the upper cover plate; the upper cover plate hole is connected with a bottom end of the acrylic sleeve; a separating plate slide slot is formed on the top surface of the lower cover plate; a lower cover plate hole is formed on the part corresponding to the position of the upper cover plate hole at the bottom of the separating plate slide slot; the lower cover plate hole is connected with the top of sedimentation glass; a water draining valve is arranged at the bottom of the sedimentation glass; a separating plate is arranged in the separating plate slide slot; the separating plate is connected with one end of a pull rod; and the other end of the pull rod is penetrated through a pull rod sealing ring embedded between the upper cover plate and the lower cover plate and a pull rod penetrating hole formed on the lower cover plate in turn and then is connected with a handle. According to the invention, the separating time after the settling of the phytoplankton sample is reduced by 80% or above, the settled phytoplankton is prevented from being disturbed and entering into supernate, the constant volume operation is convenient and the settling separation device is difficult to be damaged.

The invention discloses a push-and-pull and side-hung door and window hardware system. A first lock point for locking a push-and-pull door and window sash in a door and window frame is arranged on the push-and-pull door and window sash. The other side of a side-hung door and window sash is provided with a second lock point for locking the side-hung door and window sash into the door and window frame. The push-and-pull door and window sash and the side-hung door and window sash are provided with the first lock point and the second lock point respectively, the first lock point achieves the antitheft effect and the limiting effect on the side-hung door and window sash, and the second lock point achieves the limiting effect and can be further matched with an anti-misoperation device to achieve the anti-misoperation effect. The push-and-pull door and window sash and the side-hung door and window sash of a push-and-pull side-hung door and window sash can switch off locking connection through a third lock point, the push-and-pull door and window sash is pushed to a proper position wherein the push-and-pull door and window sash and the side-hung door and window sash are overlapped, the push-and-pull door and window sash and the side-hung door and window sash can form a tight integrated structure, and combined linkage of the push-and-pull door and window sash and the side-hung door and window sash is facilitated.

The invention discloses a protective circuit for switching over-voltage protection of a dry air reactor, relates to an over-voltage protective circuit for the dry air reactor, and solves the following problems in the traditional reactor over-voltage protection: the capacitance volume is large and the production cost is high when a resistance-capacitance absorption circuit is singly used, and dispersibility of gap breakdown voltage is increased and service life of protective gap is reduced due to frequent actions of the protective gap when a gap protector is singly used. The protective circuit can be satisfied through choosing proper element parameters according to cut-off current; when the cut-off current is lower, a resistance-capacitance absorption device controls over-voltage amplitude values at two ends of the reactor to prevent the over-voltage amplitude values from reaching the breakdown voltage of the protective gap, the protective gap is in a disconnection state, and the reactor and respective resistance-capacitance elements form an RLC (Radio Link Control) oscillation circuit; when the cut-off current is higher, the over-voltage amplitude values at two ends of the reactor are higher, the protective gap is broken down, and a capacitor and a protective resistor thereof are short out; the protective circuit for the switching over-voltage protection of the dry air reactor is applied to the reactor protection field.

The invention discloses a tunnel lighting device, system and method using sunlight. The device comprising a light guide, wherein the light guide is connected to a diffuser mounted in a tunnel through an optical fiber, the light guide is also internally provided with a first illumination sensor and a lamp, the first illumination sensor is used for collecting illumination intensity in the light guide, and the lamp is used for detecting the illumination intensity in the light guide; the lamp is used for adjusting the illumination intensity in the light guide device. When illumination intensity in the light guide device is insufficient, illumination intensity is compensated by utilizing the illumination intensity of the lamp, and compensated illumination intensity is conducted to the diffuser through the optical fiber, so the light beams received in the diffuser are preliminarily mixed in the light guide device; and furthermore, the light emitted by the diffuser has no obvious brightness difference, chromatic aberration or color temperature change, illumination compensation is smoother, and a purpose of stepless dimming is achieved.

The invention discloses a station door pinch preventing device. An infrared sensing module is arranged between a station door and a train door, a protective sleeve is arranged outside the infrared sensing module, a gap is reserved between the protective sleeve and the infrared sensing module, and an opening is formed in the protective sleeve corresponding to a sensing zone of the infrared sensing module. The station door pinch preventing device has the advantages of bump avoidance, rain proofing, dust proofing, perpendicular sunlight incidence prevention and the like. The several problems of an existing station door sensing device are solved, including that a lateral wagging phenomenon exists in the running process of a train, an infrared sensing device installed between the train door and a shield door is easily bumped by the train to produce displacement change (opening non-alignment is caused) or to be damaged, and accordingly the detecting accuracy is reduced; for a ground station, inflowing water easily causes short circuit of the infrared sensing device in rainy days, and device damage rate is increased; perpendicular incidence of sunlight in sunny days easily causes false alarming of the infrared sensing device; dust easily accumulates on the infrared sensing device after the infrared sensing device is installed, blurred vision is caused, and the sensitivity of the sensing device is affected.

Disclosed is an extended-range full-electric low-speed tractor, which includes a system control unit, a battery pack, a frequency conversion driver, a bidirectional DC-DC converter, a generating set and a drive system. The generating set is capable of working in an intermittent mode. The generating set will be started when the power of the battery pack is lower than a preset working range; once the generating set begins to work, the generating set will be running under a condition of “the most economic fuel consumption” and provide stable output at constant speed and constant power, so as to make sure that the generating set is not overloaded, emits no black smoke and has highest energy efficiency. It has advantages of low energy consumption, low pollution and long life of the generating set.

The invention relates to the technical field of charging piles, in particular to automobile charging equipment capable of secondarily protecting an equalizing charging gun. The automobile charging equipment comprises a charging pile base, the upper end face of the charging pile base is fixedly connected with a supporting block, and a clamping device can complete positioning of a charging gun when equipment needs to be charged so that good charging contact is guaranteed, and the clamping device can be matched with a follow-up device to complete protective separation, thus the charging gun can be automatically separated from charged equipment when being driven and pulled, and the safety of the equipment is ensured; the secondary protection device can provide a second protection barrier through reliable mechanical judgment when the protection system goes wrong, so that guarantee can still be provided for the equipment under the condition of system faults, the traditional mode that the equipment is protected only through system control is changed, and the traditional mode excessively depends on an electronic system, and when the system fails and does not operate normally, the equipment has no safeguard measures.

A cabinet type biomass hot blast stove comprises a cabinet. A fuel barrel and multiple layers of heat exchange rotary liners are respectively arranged on a grate above a burning chamber in the cabinet. The lower portion of the outer wall of the fuel barrel is provided with a secondary air box tightly connected with the fuel barrel. The air inlet of the secondary air box is connected to a secondary air tube. The outer wall of the fuel barrel is provided with a plurality of secondary air holes corresponding to the secondary air box. A gas exhaust tube penetrates out of the cabinet, the penetrating end of the gas exhaust tube is provided with a jet pipe in a penetrating manner from exterior to interior, and the lower end of the jet pipe is connected to a jet fan. Each heat exchange rotary liner between the bottom layer of the heat exchange rotary liner and the top layer of the heat exchange rotary liner is connected to one gas inlet channel pipe and one gas outlet channel pipe which are respectively arranged on two sides corresponding to the heat exchange rotary liner. According to the cabinet type biomass hot blast stove, the multi-point air-distribution counter-burning technology is adopted, the stove is capable of burning completely, gas is eliminated, and environment is protected; meanwhile, since the rotary liner heat exchange technology is adopted, the hot blast stove air flow amount is maximized, and gas exhausting temperature of the hot blast stove is decreased greatly.

The invention discloses a smoke exhaust barrel with a jet technology for a hot-blast stove. The smoke exhaust barrel comprises a smoke barrel. An air inlet is formed in the bottom of the smoke barrel, an air inlet tube penetrates the inside of the air inlet, the upper portion of the air inlet tube penetrates the inside of the smoke barrel, the lower portion of the air inlet tube is arranged on the outside of the smoke barrel, a smoke exhaust fan is arranged on the lower portion, which is positioned on the outside of the smoke barrel, of the air inlet tube, and an air outlet of the smoke exhaust fan is connected and communicated with a lower port of the air inlet tube. Compared with the prior art, the smoke exhaust barrel has the advantages of simple structure, convenience in maintenance, low failure rate, good smoke exhaust effect and the like. Besides, shortcomings of high cost, maintenance rate and damage rate of an existing smoke exhaust induced draft fan when the existing smoke exhaust induced draft fan works in a high-temperature state are overcome.

The invention discloses a system and a method for laser processing a transparent material through passive zoom. The system comprises a laser source, a laser source support stand column, a galvanometerscanning head, a scanning lens, an upper computer, a motor, an electronic control lifting platform, a platform bottom plate, a motion control card and a galvanometer control card. The method comprises the following steps: (1) the upper computer controls the electronic control lifting platform to run; (2) the upper computer controls an X/Y axis of the galvanometer scanning head to move; (3) a laser beam emitted by the laser source swings through the X/Y direction of the galvanometer scanning head; and (4) the laser beam is focused on the transparent material through the scanning lens so as toprocess the material. The system provided by the invention is simple in light path structure and less in optical element, so that the cost is greatly reduced; and according to the method, a focus point of the laser beam is passively zoomed, and the transparent material is processed layer by layer from bottom to top, so that the processing efficiency and a processing effect are improved, and the thickness range of the material to be process is enlarged.

The invention provides an electronic component production transport conveyor belt with a vibration falling prevention function, and relates to the technical field of conveyor belt equipment, the electronic component production transport conveyor belt comprises two supporting plates, and an appearance protection mechanism is fixedly mounted between the two sides of the inner walls of the two supporting plates; and a variable speed driving mechanism and a control mechanism are fixedly mounted on one side of the outer wall of one of the two supporting plates respectively, so that the problem that only prevention of falling off of the element body is considered in the prior art is solved, and due to the fact that the surface of a product contains more electro-tin contacts and is in direct contact with the surface of the conveyor belt body, the product cannot fall off due to the influence of self-gravity. The conveying belt body is bent after being static for a long time, so that a contact is effectively protected, after a product is misplaced during transportation, part of buffering force is generated by the product and a rubber roller, corners are prevented from being broken, meanwhile, the position of an element is continuously corrected through rebound force, and then the quality of the conveying belt body after transportation is effectively improved.

The invention discloses a compressed gas filtering and purging device for maintenance, which comprises a filtering tank body and a cover body detachably connected with the filtering tank body through a fixing piece, wherein the surface of the lower end of the filtering tank body is provided with an air inlet pipe communicated with an inner cavity of the filtering tank body, an air inlet valve is arranged on the surface of the air inlet pipe, the upper side of the cover body is provided with an exhaust pipe communicated with the inner cavity of the filtering tank body, the other end of the exhaust pipe is communicated with a purging assembly, a gas distributor, a gas-liquid separator, a filtering plate and an adsorption plate are hermetically clamped in the inner cavity of the filtering tank body in sequence from bottom to top, and a pressure gauge and a pressure regulating valve are respectively arranged at the upper end of the cover body. According to the invention, compressed air is filtered, meanwhile, the filtering quality is high, the situation that a purging piece is damaged due to the fact that exhausted compressed air contains impurities is avoided, the usage amount of the compressed air is reduced, and meanwhile, the maintenance cost of a water-cooled generator is saved.

The invention discloses a surface treatment device for synthetic processing of a novel polymer material with an anti-overlapping mark. The surface treatment device structurally comprises a controller,a device body, a workbench, a positioning push plate, a rotary movable stand column, a driving motor and a protective sheet device. The surface treatment device has the beneficial effects that an upper wiping plate and a lower grinding mechanism are matched with each other, so that iron chips are adsorbed by heat generated by high-speed rotation of the surface of a grinding blade, and effective unified treatment is carried out, so that the surface of the blade is clean and tidy, and the situation that the damage probability of the blade is accelerated due to the fact that a magnetic field isgenerated due to the fact that the iron chips are more is avoided; and sawtooth strips on the surface of a material suction plate are used for grinding the blade in contact with metal, so that the phenomenon that the blade is different in layer in the placing process is avoided, and the blade is relatively slow, so that a new overlapping mark is formed on the grinding surface of the equipment to be ground.

The invention relates to the technical field of electric connectors and further discloses a novel waterproof electric connector. The electric connector comprises an electric connector joint. A connecting wire is fixedly connected to the top of the electric connector joint. A connecting wire waterproof ring is fixedly connected to the top of the electric connector joint. A joint screw hole is formed in the front face of the electric connector joint, and a screw hole waterproof ring is fixedly connected to the inner side wall of the joint screw hole. According to the novel waterproof electric connector, based on the cooperative usage of the connecting wire waterproof ring, the screw hole waterproof ring, a joint connection waterproof ring, a slot, a sleeve, a sleeve internal thread, a waterproof annular ring, a sleeve locking block, a connector external thread, a groove, a connector waterproof ring and a contact pin waterproof layer, the whole waterproof effect of the novel waterproof electric connector can be achieved, so that the novel waterproof electric connector can be used in a wading environment. The normal operation of a protection circuit and equipment is achieved, and the property safety and the life safety of people are effectively protected.

The invention discloses a magnetic USB connection method between a barcode scanning/RFID device and a mobile phone or a computer, and relates to the field of barcode scanning/barcode data collection. In this way, you can quickly and conveniently connect the barcode scanning/RFID device to the USB interface of the smartphone or PC. Plug and play, and no directionality, saving time and effort, at least 30% more efficient than traditional connection methods. Moreover, it solves the problem that the USB interface of the mobile phone or the computer is easily broken/loose.

The invention belongs to the technical field of stamping dies, and particularly relates to a hardware cast iron die-casting stamping die. The hardware cast iron die-casting stamping die comprises a workbench, a feeding plate, a first collecting box and a liquid collecting barrel, wherein a material receiving plate is arranged at the position, between an upper die and a lower die, of one side of the workbench, and baffles are arranged on the front side and the rear side of the material receiving plate; first connecting rods are fixedly connected to the upper ends of the outer surfaces of the sides, away from the workbench, of the baffles, included angles between the first connecting rods and the upper surface of the material receiving plate are acute angles, and the ends, away from the material receiving plate, of the first connecting rods are rotationally connected with corresponding stand columns through rotating shafts; and a fixing rod is fixedly connected between the upper ends of the sides, away from the workbench, of the two baffles, and a second connecting rod is hinged between the middle of the fixing rod and an upper die fixing plate. According to the hardware cast iron die-casting stamping die, a workpiece can be prevented from colliding with the lower die, the precision of the die is improved, the service life of the die is prolonged, integration of demolding, material receiving and cleaning of the workpiece is realized, the operation time is saved, and the production working efficiency of the hardware cast iron die-casting stamping die is improved.