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76results about How to "The installation position is not restricted" patented technology

Power-saving image pick-up device, intelligent door viewer and network camera

The invention discloses a power-saving image pick-up device, which comprises a mobile detection sensing module, a microcontroller, a main control chip and an image collector, wherein the microcontroller is connected with the mobile detection sensing module, the main control chip and the image collector; the main control chip is connected with the image collector; the mobile detection sensing module is used for outputting first sensing signals to the microcontroller; the microcontroller is used for receiving the first sensing signals and starting the infrared emitting module to emit infrared light, and outputs a main control signal for controlling the main control chip and the image collector to enter a starting state or a dormancy state; the image collector in the starting state is used for collecting image signals, and outputting the image signals to the main control chip. The invention also discloses an intelligent door viewer and a network camera. The power-saving image pick-up device has the advantages that the power consumption is low; an external power source is not needed; the power-saving image pick-up device can maintain long-time work by only installing batteries, so that the installation and the migration are convenient; in addition, the installation positions are not limited; convenience is provided for security and protection work.
Owner:SHENZHEN HUAHAI TECH

Course deviation determination method and device, equipment, and storage medium

The embodiment of the invention discloses a course deviation determination method and device, equipment and a storage medium. The method comprises the steps of controlling the head of an unmanned aerial vehicle to fly a set distance in the first direction without yaw flight, and calculating the measurement course angle of the unmanned aerial vehicle through a double-antenna carrier phase difference RTK technology, wherein the measurement course angle is an included angle between the RTK course and the set standard direction; acquiring a correcting included angle between the first direction andthe set standard direction; determining the course deviation angle of the unmanned aerial vehicle according to the correction included angle and the measurement course angle, and the course deviationangle is an included angle between the head direction of the unmanned aerial vehicle and the RTK course. According to the technical scheme, the problem that the installation position of a double-antenna needs to be strictly required in the prior art is solved, so that the installation position of the double-antenna is not limited, and the unmanned aerial vehicle can obtain the course deviation angle through the dynamic flight process, and the effect of improving the accuracy of the course of the unmanned aerial vehicle is achieved.
Owner:TOPXGUN NAN JING ROBOTICS CO LTD

Refrigerator

An electric refrigerator consists of refrigerating chamber, chilling room, compressor, condenser, and throttle unit, evaporator of refrigerating chamber, evaporator of chilling room and control unit for controlling operation of compressor. It is featured as setting electronic temperature transducer on evaporator of refrigerating chamber for detecting temperature of said evaporator and controlling operation of compressor by control unit according to relation between signal detected by said transducer and the first set temperature.
Owner:PANASONIC CORP +1

Automatic retractable hydraulic device for unmanned aerial vehicle undercarriage

The invention relates to the technical field of aircraft hydraulic system design, in particular relates to an automatic retractable hydraulic device for an unmanned aerial vehicle undercarriage. The automatic retractable hydraulic device for unmanned aerial vehicle undercarriage comprises an oil tank (1), a quantitative hydraulic pump (2), a variable frequency motor (3), an oil filter (4), an undercarriage retracting electromagnetic valve (5), an overflow valve (6), a first pressure sensor (7), an undercarriage retracting actuator cylinder (8) and a second pressure sensor (9). The undercarriage retracting system with the structure has the advantages of simple structure, unrestricted installation location and low requirements on oil precision, omits a valve controlled throttle governing servo hydraulic system, avoids the system temperature rise and low efficiency caused by the throttling loss and overflow loss, and at the same time abandons the electro-hydraulic servo valve with high cost to realize low cost.
Owner:HARBIN

Unmanned vehicle brake system for achieving double-loop brake

The invention provides an unmanned vehicle brake system for achieving double-loop brake. The unmanned vehicle brake system is mainly composed of a manual brake loop, an electric brake loop, a three-way control valve and a brake pipeline Z. A brake pedal on the manual brake loop is connected with an assistance device through a control valve. The assistance device is connected with the control end of a main brake cylinder R through a main brake cylinder pushing rod R. An oil inlet of the main brake cylinder R is connected with a liquid storage tank R. An oil outlet of the main brake cylinder R is connected with a brake pipeline R. An electric control module on the electric brake loop is connected with the control end of a main brake cylinder D through a main brake cylinder pushing rod D. An oil inlet of the main brake cylinder D is connected with a liquid storage tank D. An oil outlet of the main brake cylinder D is connected with a brake pipeline D. The brake pipeline R and the brake pipeline D are connected with a three-way control valve. An oil outlet of the three-way control valve is connected with a brake controller through the brake pipeline Z. The brake controller is connected with a wheel side brake assembly of a vehicle.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Aircraft hydraulic anti-skid braking pressure supply device

InactiveCN102442430ALearn about real-time informationRealize low pressure alarm functionAircraft braking arrangementsDriver/operatorTime information
The invention belongs to the aircraft hydraulic technology and especially relates to an aircraft hydraulic anti-skid braking pressure supply device, which contains a baking pressure reservoir (7), a pressure switch (12), an electric pump (2), a pressurizing solenoid valve (5), an antiskid braking valve (8), braking pressure transducer (9), a pressure supply pressure transducer (11), a pressure relay (13), a pressure supply overflow valve (14), a pressurizing overflow valve (3), a non-return valve (6), an oil filter (4), a speed transmitter and a control box (15). According to the invention, the pressure reservoir is used as a pressure source to realize braking; the pressurizing control pressure switch controls the electric pump and the brake pressurizing solenoid valve to pressurize the pressure reservoir and guarantee there is enough pressure in the pressure reservoir for realizing the brake function; the pressure supply pressure transducer and the braking pressure transducer are installed to respectively detect the pressure-supply pressure and the braking pressure so as to ensure a driver understands real-time information of the braking device; and the pressure relay on the braking device has a low-pressure alarm function. The installation position of the invention is not limited.
Owner:HARBIN

Steering mechanism for four-wheel vehicle

The steering mechanism for four-wheel vehicle includes steering rod assembly, steering link rod mechanism and steering gear connected to the steering rod assembly and the steering link rod mechanism. The steering gear includes shaft, wire coiling wheel fixed on the shaft, steel wire wound on the wire coiling wheel and one pair of elastic connector with one end connected to the steel wire and the other end hinged to the steering link rod mechanism. The present invention has simple structure and easy manufacture, may be matched with elastic suspension and used to realize no-interval steering transmission. The present invention may be used widely in various kinds of miniature four-wheel vehicles and three-wheel vehicles.
Owner:广州蓝豚机电科技有限公司

Miniature four-wheel vehicle steering mechanism

The steering mechanism for miniature four-wheel vehicle includes steering rod assembly, steering link rod mechanism and steering gear connected to the steering rod assembly and the steering link rod mechanism. The steering gear includes shaft, shift plate and elastic connecting part, and the shift plate has one end fixed to the shaft and the other end hinged to the steering link rod mechanism via the elastic connecting part. The present invention has simple structure and easy manufacture, may be matched with elastic suspension and used to realize no-interval steering transmission. The present invention may be used widely in various kinds of miniature four-wheel vehicles and three-wheel vehicles.
Owner:广州蓝豚机电科技有限公司

Left-right folio sunshade roller shutter for vehicle windscreen glass

A left-right folio sunshade roller shutter for vehicle windscreen glass is in a left-fight folio mode and is respectively fixed on left and right sides of the vehicle windscreen glass, and sunshade cloth is rolled on a rolling device; during use, the sunshade cloth are pulled out by a cloth drawing rod; a cloth drawing hook buckle is arranged at the centerline position of the vehicle windscreen glass, or the sunshade cloth are pushed by using a bidirectional rotary speed reduction motor; when not in use, the cloth drawing rod and the hook buckle are separated, the sunshade cloth are automatically reset by the rolling device or are controlled to be reset by the bidirectional rotary speed reduction motor; the sunshade cloth are automatically reset without being additional collected. The left-right folio sunshade roller shutter for the vehicle windscreen glass can solve the sunshade problem of the vehicle windscreen glass, is attractive, is not affected by the positions of an internal rear view-mirror and a high-position brake lamp and is suitable for being used as a standard accessory of a vehicle production enterprise.
Owner:GUANGXI TIANLIQUAN CHEM +1

Undercarriage rising and landing control hydraulic device for helicopter

The invention relates to an undercarriage rising and landing control hydraulic device for a helicopter. According to the hydraulic device, a variable-frequency motor is adopted to control a quantitative hydraulic pump, and the rotating speed of the motor is changed to control the flow of a system, and therefore rising and landing of an undercarriage are achieved. By means of the undercarriage rising and landing system of the structural form, the structure is simple, the installation position is not limited, the requirement for the precision of oil liquid is low, a valve-control throttling speed-adjusting servo hydraulic system is abandoned, the problems that the temperature of the system is increased and the efficiency is low due to throttling losses and overflow losses are avoided, and meanwhile electro-hydraulic servo valves very high in manufacturing cost and electromagnetic reversing valves large in pressure impact are abandoned.
Owner:HARBIN

Implantable bionic flexible pulsatile pump

The invention discloses an implantable bionic flexible pulsatile pump driven by an ultrasonic motor. The pump comprises the ultrasonic motor, a groove cam, a roller follower, a slide block, an arc push plate, an elastic blood bag, a pump housing, a round separating plate and a linear guideway. According to The implantable bionic flexible pulsatile pump driven by the ultrasonic motor, the damage of blood pump to blood can be reduced effectively, the mounting location of the implantable bionic flexible pulsatile pump is not limited; the whole structure is compact, so that the volume of the pulsatile pump can be reduced effectively; and the implantability is added, so that the range of application suitable for the crowd is expanded.
Owner:心瓴上海医疗科技有限公司

Built-in type point-shaped glass curtain wall ventilator

Provided is a built-in type point-shaped glass curtain wall ventilator. The built-in type point-shaped glass curtain wall ventilator solves the problems that according to an existing curtain wall ventilating device, energy waste is caused by irregular ventilation, and the external decorative effect of a curtain wall is influenced when a ventilator is independently installed. The built-in type point-shaped glass curtain wall ventilator comprises a ventilator body, wherein the ventilator body is assembled on a reserved hole formed in a glass plane material through a sealing ring and a sealing strip. The built-in type point-shaped glass curtain wall ventilator is technically characterized in that the ventilator body is composed of an outdoor flow guiding cover and an indoor assembly, the indoor assembly comprises a sleeve and a rotary ventilator main body, the rotary ventilator main body is formed by a shell body, an axial flow fan and a detachable perforating ventilating cover plate, the shell body and the sleeve are connected together in a clamped mode through a snap spring, the end face, with stagger ventilating holes, of the shell body and the end face, with stagger ventilating holes, of the sleeve can relatively rotate around the axis, alignment communication or displacement closing of the stagger ventilating holes in an air channel can be achieved, and the sleeve and the outdoor flow guiding cover are connected through threads and are tightly locked to be fixed. The built-in type point-shaped glass curtain wall ventilator is simple in structure and reasonable in design, facilitates indoor assembly, indoor disassembly and maintenance, achieves regular ventilation, is wide in range of application, saves energy, and improves the integrally external decorative effect of the curtain wall and flexibility of arrangement of the ventilating position.
Owner:SHENYANG YUANDA ALUMINUM IND GROUP

Cooling device of high-power solid laser

The invention discloses a cooling device of a high-power solid laser. The cooling device of the high-power solid laser comprises a heat sink, a shunting type heat pipe and a cooling fan, wherein one side of the heat sink is in firm contact with gain medium of the high-power solid laser, and the other side of the heat sink is provided with a groove matched with the evaporation section of the shunting type heat pipe in shape; when the shunting type heat pipe is inserted in the groove of the heat sink, the condensing section of the shunting type heat pipe is located in the air, and the cooling fan accelerates the cooling of the condensing section. The cooling device of the high-power solid laser is capable of effectively lowering the gain medium temperature, reducing the thermal stress deformation of the gain medium due to uneven temperature and improving the laser beam quality and output power. The cooling device of the high-power solid laser overcomes the problems of water leakage, large volume, complex pipeline and the like which may be caused by the cooling mode of the prior art.
Owner:11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP

Rapid detection method and detection device for organic volatile substance of panel-type furniture

The invention discloses a rapid detection method and detection device for an organic volatile substance of panel-type furniture. The portable rapid detection device for the organic volatile substanceof the panel-type furniture comprises a portable sampling cabin, a control host and a sampling and analysis device, wherein an opening is formed in one end of the sampling cabin, a sealing strip is arranged at an opening position, a sampling hole is formed in the sampling cabin, a vacuum suction disc device is arranged outside the sampling bin and comprises at least two vacuum suction discs, a pressurization plate and an adjustment handle, the vacuum suction disc device is arranged at the periphery of the sampling cabin, the pressurization plate is arranged outside of one side opposite to theopening of the sampling cabin, an end part of the pressurization plate is connected with the vacuum suction disc, the adjustment handle is in threaded connection with a middle part of the pressurization plate by a threaded rod, a vacuum pump and a clean air source generation device are arranged in the control host, the vacuum pump is connected with the vacuum suction disc by a vacuum pipe, the clean air source generation device is connected with the sampling cabin by a gas-filled pipe, and the sampling and analysis device is connected with the sampling hole of the sampling cabin by the sampling pipe.
Owner:JINAN HAINATE TECH

Novel thermistor array chip and preparation method of same

The invention relates to a novel thermistor array chip which includes a thermosensitive ceramic chip and metal electrodes arranged on the surface thereof. The metal electrodes include at least two topelectrodes and one bottom electrode, wherein the top electrodes are arranged in parallel at interval on the upper surface of the thermosensitive ceramic chip. The bottom electrode completely covers the lower surface of the thermosensitive ceramic chip. The invention also relates to a preparation method of the novel thermistor array chip, which includes the steps of: press-shaping and sintering NTC thermosensitive ceramic powder to obtain a ceramic ingot, cutting the ceramic ingot into thermosensitive ceramic substrates; printing the thermosensitive ceramic substrates with a metal electrode layer, sintering the thermosensitive ceramic substrates, and cutting the thermosensitive ceramic substrates to prepare single novel thermistor array chip. The thermistor array chip is improved in installation efficiency and installation density, has flexible installation modes, has simple structure and can save circuit space and increase integration degree.
Owner:ZHAOQING EXSENSE ELECTRONICS TECH

Plant cultivation box and use thereof

InactiveCN102187806AFavorable absorbencyFavorable growthAgriculture gas emission reductionCultivating equipmentsGreeningPlant cultivation
The invention discloses a plant cultivation box and use thereof. The plant cultivation box belongs to a cultivation system, and comprises a box body and a nutrient solution supply tube which is laid in the box body, wherein the nutrient solution supply tube is provided with a plurality of nozzles which are used for spraying nutrient solution or water in an aerosol state; a cultivation hole is formed in the box body; and the plant cultivation box is provided with a return pipe which makes the unabsorbed nutrient solution or water return. Because the plant cultivation box has the advantages of small volume, simple structure, high shape plasticity and unlimited mounting position, the plant cultivation box is particularly suitable for indoor / outdoor greening; and because hanging plants are cultivated in the plant cultivation box, a good decoration effect is achieved. In addition, the nutrient solution is provided for the plants in an aerosol state so as to contribute to absorption and growth of the plants.
Owner:上海赋民农业科技股份有限公司

Parameter recording system and method for circulation process of cold chain products

The invention relates to a parameter recording system and method for the circulation process of cold chain products. A parameter recorder of the system is equipped with a sensor module, a communication module, a microcontroller and a memory. A piece of terminal equipment APP software writes packaging box information into the parameter recorder through the communication module, and reads the parameter information stored by the parameter recorder. A cold chain management platform includes a communication protocol processing module, and an inter-layer APP data transmission processing module and an inter-layer sensor data transmission processing module connected with the communication protocol processing module. All kinds of sensor data are transmitted to the communication protocol processingmodule, and are locally stored via the inter-layer sensor data transmission processing module. When the terminal equipment APP software needs to call the sensor data, the sensor data is processed by calling the communication protocol processing module and the inter-layer APP data transmission processing module and transmitted to the terminal equipment APP software through the communication module.The integrity and reliability of various monitoring data in the transportation process are ensured, and safe transportation of cold chains is guaranteed.
Owner:广州天源信息科技股份有限公司 +1

Novel negative pressure gas-liquid separator

The invention relates to a novel negative pressure gas-liquid separator, which is mainly composed of: a gas outlet flange, a gas-liquid mixture inlet flange, a top cover, a hand wheel, an upper box body, a tapered ring, an upper rubber valve core, a lining board, an upper valve base, a lower box body, a lower valve base board, a lower valve base, a lower valve core, a lower conical ring, an upperconical ring, a baffle, an upper valve base board, and a liquid outlet, etc. The upper box body is in bolt connection with the lower box body. The gas outlet flange is connected to an external exhaustfan or a vacuum pump. An overflow device composed of the baffle and valve bases are arranged in the lower box body. By means of the manual valve and the overflow device, liquid seal is achieved at aliquid outlet essentially, so that technical problems that air enters the separator from the liquid outlet and installation position of the separator is limited since there is no throttling or forcedliquid discharge apparatus at the liquid outlet in the prior art can be solved, thereby increasing gas-liquid separation efficiency.
Owner:SOUTHWEST PETROLEUM UNIV

Green plant windbreaking plate structure based on wind power generation

The invention discloses a green plant windbreaking plate structure based on wind power generation, and relates to the technical field of natural disaster protection. The green plant windbreaking platestructure based on wind power generation comprises a windbreaking plate frame, a windbreaking plate, functional side columns and a connection blocking frame, wherein side rotating frames are arrangedon the top of the windbreaking plate frame, two sides of the windbreaking plate frame are arranged to correspond to the functional side columns, the connection blocking frame is installed between thefunctional side columns, the functional side columns and the connection blocking frame can be continuously arranged, a wind power rotating shaft is installed on the connection blocking frame, and wind power fan blades are arranged on the top of the wind power rotating shaft. The green plant windbreaking plate structure based on wind power generation is provided, the problem that for existing large-area green plant cultivation, there are no structure devices capable of automatically protecting a whole park against strong wind on a large scale when the strong wind comes is solved, the device can be automatically started in windy weather, and can be controlled through remote commands, and no external power supplies or wires are needed, so that installation positions are unlimited.
Owner:海外远景(北京)科技有限公司

Thermoelectric power generation device with airflow state self-adaptive function and power generation method

ActiveCN108880332ADoes not affect closureHolisticGenerators/motorsTemperature differenceEngineering
The invention discloses a thermoelectric power generation device with an airflow state self-adaptive function and a power generation method; the thermoelectric power generation device mainly comprisesan electric control module, an air inlet end cover, a flow guide module, a heat collection box body, thermoelectric modules, cooling fins and an exhaust end cover; the device can be used for waste heat recovery of high-temperature air flow; hot air flows from the air inlet end cover, is guided by the flow guide module and then is diffused to the heat collection box body; the temperature of the heat collection box body is increased due to heating of the hot air flow to form a heat source of each thermoelectric module; the thermoelectric module, by taking the wall surface of the heat collectionbox as a heat source, and taking the cooling fins as a cold source, forms a temperature difference between the two working surfaces, so that electric energy is generated; the flow guide module is controlled by the electric control module, and the angle of a flow guide plate can be adjusted; and the electric control module is used for guiding the air flow by a reasonable flow guiding angle and controlling the flowing state of the air flow in the heat collecting box body according to temperature and pressure signals, so that reasonable utilization of the heat of the air flow is realized, and itis guaranteed that the device can keep relatively high power generation under different working conditions.
Owner:江阴智产汇知识产权运营有限公司

Electricity meter box

The invention relates to an electricity meter box, comprising a bottom box and a box body which is formed by a face shield. The electricity meter box is characterized in that a through port is arranged at the position of the face shield corresponding to a switch; a movable plate is arranged on the bottom box corresponding to the through port, and a switch is installed on the movable plate; a plug and a hook are arranged on the movable plate; and the movable plate is buckled on the bottom box. A sealing shield is arranged on the through port, a spring bolt is arranged at the upper end of the sealing shield, and a bolt fixing hole is arranged at the lower end of the sealing shield. A protective cover is arranged on the sealing shield. The electricity meter box has the advantages of simple structure, safety and practicability, strong universality, convenience for use and repairing, unlimited installation position and the like.
Owner:伍时雄

Device and method for accurately locating linear push rod

The invention discloses a device and a method for accurately locating a linear push rod. The device comprises a base frame arranged at the bottom of a base, as well as the linear push rod and a vertical rod which are arranged on the base frame, wherein the linear push rod pushes the vertical rod to rotate and touches limiters; feature locating patterns are arranged on the base frame; a scanner isarranged on the vertical rod; after the limiters transmit a signal, the linear push rod stops rotating; the scanner continuously scans the feature locating patterns and judges whether the vertical rodis accurately located or not; if not, the linear push rod rotates in a fine tuning manner, and the vertical rod is continuously adjusted until the vertical rod is accurately located. The device and the method disclosed by the invention have the advantages that broad localization of the limiter is combined with accurate location of the scanner, and no structure of the linear push rod needs to be changed; the accurate localization depends on position judgment of the scanner to the feature locating patterns and can be suitable for linear push rods with any model numbers; the quantity of the limiters and the mounting positions are not limited and accurate location of multiple positions can be realized.
Owner:武汉四维图新科技有限公司

Solar heating and hot water supply system mounted on building handrail

The invention relates to a solar heating and hot water supply system mounted on a building handrail. The system comprises a heat accumulator, a channel, a shell, a plurality of solar heat collecting tubes and a sun tracking part, wherein the heat accumulator is mounted on a building and filled with external raw water; the channel is transversely arranged at the upper end of the building handrail and filled with a heating medium conducting heat exchange with the raw water; the shell, in parallel with the channel, is arranged at the lower end of the handrail; two ends of each solar heat collecting tube can rotate on the channel and the shell; the solar heat collecting tubes are arranged along the length direction of the channel and the shell, conduct heat exchange with a heat transfer substance in a heat tube gathering sunlight for heating, and heat the heat transfer medium in the channel; the sun tracking part is arranged in the shell and rotates the plurality of solar heat collecting tubes at the same time so that the plurality of solar heat collecting tubes track the sun moving in the east-west direction. According to the system, the solar heat collecting tubes for collecting solar energy are mounted on the building handrail, thus tracking the sunlight without losing the ventilation and the overlooking functions of the handrail.
Owner:北京民利储能技术有限公司

Dielectric antenna, dielectric antenna device and communication device

A medium antenna include an antenna body, the antenna body comprises a dielectric body and a feed terminal and a ground terminal arranged on the surface of the dielectric body, The antenna body further comprises a first electrode sheet, a second electrode sheet, a common electrode sheet and an inductance post arranged in the dielectric body, wherein, the first electrode sheet is connected with thefeed terminal, and the first electrode sheet and the common electrode sheet are arranged opposite each other to form a first capacitance between the first electrode sheet and the common electrode sheet; The second electrode piece is connected with the ground terminal, A second electrode sheet is opposed to a common electrode sheet to form a second capacitance between the second electrode sheet and the common electrode sheet. Both ends of the inductor post are respectively connected with the common electrode sheet and the ground terminal to form a parallel resonant circuit in parallel with thesecond capacitance. The dielectric antenna can be placed at any position on the circuit board. The invention relates to a dielectric antenna device, wherein the dielectric antenna can be placed in any position of a circuit board; A communication device in which the mounting position of a dielectric antenna on a circuit board is not limited.
Owner:东莞市合康电子有限公司

LED warning vehicle body entrance security check recognizing device

The invention discloses an LED warning vehicle body entrance security check recognizing device. A stand column, a camera and a base are included; the stand column comprises a movable rod and a fixed barrel; the top end of the movable rod is connected with the bottom end of the camera, and the bottom end of the movable rod can move in the fixed barrel; the bottom end of the fixed barrel is connected with the base; the rod wall of the movable rod is provided with a plurality of screw holes which are arranged in the axial direction of the movable rod at equal intervals; a supporting arm is fixedto the outer side wall of the top of the fixed barrel, and is provided with a limiting hole; a bolt is further included, and penetrates through the limiting hole to be fixed to any screw hole; and anLED warning lamp board is further embedded in the outer wall of the fixed barrel. Due to the LED warning vehicle body entrance security check recognizing device, the height of a recognizing pile can be conveniently adjusted, so that adaption to the requirements of different parking lots and shot vehicles is achieved; after the height of the recognizing pile is adjusted, stability is high; and meanwhile, the problems that an existing parking lot recognizing pile is not likely to be recognized at a distance, and consequently the stand column collapses are solved.
Owner:袁丽萍

A passive automatic control device for farmland irrigation

The invention discloses an automatic control device for passive farmland irrigation. The automatic control device mainly comprises a water storage tank, a pressure boosting mechanism, a valve flap, a floating ball guide mechanism and a buffer supporting part, wherein the buffer supporting part comprises a buffer plate and a pair of supporting columns installed on the buffer plate; each supporting column consists of a threaded connection screw rod in a threaded sleeve; the top end of each screw rod is provided with a supporting block or a supporting ball which supports the water storage tank; the water storage tank is of a fully-sealed structure, and is formed by connecting a water storage tank bottom plate and a water storage tank shell. The automatic control device has the advantages that the lifting of a floating ball in the floating ball guide mechanism is controlled by using the depth of a water layer in a farmland, so that the action of the valve flap in the water storage tank is further driven to realize water supply or discharge; when the valve flap is closed, the floating ball is used for guiding, and finally, the valve is closed by using water pressure; under the demand of shallow water supply, good sealing can still be realized; moreover, whole or independent height adjustment can be implemented in combination with the height of the floating ball of the floating ball guide mechanism, so that the depth of water level can be freely adjusted within the scope of 1-7cm to meet the demands of different-depth water supply.
Owner:JIANGSU GUANJIA WATER CONSERVANCY TECH CO LTD

Water heater wiring tank

The invention relates to a water heater accessory, in particular to a water heater wiring tank. According to a water heater wiring tank in the prior art, only an inlet wire hole is provided, and much inconvenience is brought to a user in the installation process. According to the water heater wiring tank, inlet wire holes are formed in the top end and two sides of a shell body. Due to the fact that the inlet wire holes are formed in the top end and the two sides of the water heater wiring tank, a line can be connected to a water heater from multiple orientations, under the circumstance that a bathroom is decorated over and a wall circuit has been already fixed, flexibility of installation of the water heater can still be guaranteed, the line can be connected into the water heater from the top or the left side or the right side of the water heater, even though the wall circuit has been already fixed, because multidirectional wire through holes are provided, correctness of the installation position of the water heater is still guaranteed, the installation position of the water heater is unconstrained, flexibility of the installation of the water heater is improved, meanwhile the correctness of the installation position of the water heater is guaranteed, and thus the water heater is safer to use.
Owner:浙江长兴奥利尔科技股份有限公司

Low temperature test device of seal cover nuts

The invention provides a low temperature test device of seal cover nuts, comprising a pressurization unit, a low temperature box, a test tool, a pressure gage and a deflation valve, wherein the test tool comprises a plurality of through holes and a cavity; the through holes are used for fixing the seal cover nuts to be tested and are matched with the seal cover nuts to be tested; the cavity is communicated with the through holes; the test tool is arranged in the low temperature box; the pressurization unit is arranged outside the low temperature box and is connected with the cavity on the test tool through a pipeline to pressurize the cavity; the pressure gage and the deflation valve are arranged outside the low temperature box; the pressure gage is communicated with the cavity through the pipeline to detect the pressure values at the connecting parts of the cavity and the through holes; the deflation valve is communicated with the cavity through a deflation pipe; and the position of the deflation valve is higher than that of the cavity. The low temperature test device has the beneficial effect that the device capable of detecting the tightness of the seal cover nuts under low temperature is provided, and the device has the advantages that the theory is simple, the device tightness is good, the mounting position is not limited and the like.
Owner:AEROSPACE PRECISION PROD INC LTD

Safety valve for reciprocation pump

The invention discloses a safety valve for a reciprocation pump. The safety valve comprises a valve body, a valve seat, a valve clack, a valve rod, a spring and a valve deck. A valve body inner cavity is formed in the valve body. The valve seat is in a cup shape and is installed in the valve body inner cavity. The upper end of the valve clack is pressed at the bottom of the valve seat and used for preventing liquid with normal liquid pressure being leaked outwards. The valve rod is used for pressing the valve clack or pushing a lower spring seat. The spring is connected with an upper spring seat and the lower spring seat. The valve deck is cylindrical. The top end of the valve deck is close to the top face of the upper spring seat. The safety valve is light and compact in structure and high in sensitivity, the installation position is unlimited, and the sensibility to vibration is low; and meanwhile, a buffer cavity is formed in the inner cavity of the safety valve, the sealing face of the valve clack and the sealing face of the valve seat are effectively protected, the sealing performance of the safety valve is reliable, and the service life of the product is long.
Owner:NINGBO QIANHU PETROLEUM EQUIP
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