131results about How to "Convenient for field work" patented technology

Provided in the invention is a combined underground water monitoring device at least comprising a data acquisition terminal and a monitoring pipe fitting. A plurality of sensors are installed in the monitoring pipe fitting. The monitoring pipe fitting includes a plurality of monitoring sampling tubes, a plurality of sealing isolating tubes, a plurality of connecting tubes, and a tail tube located at the tail end of the monitoring pipe fitting, wherein the tubes are mutually connected; and all monitoring sampling tubes and all sealing isolating tubes are distributed alternately and are connected by the connecting tubes. The main body of the monitoring pipe fitting contains an outer tube, a gas tube, a support plate, and a sampling tube; the support plate is installed in the outer tube by being perpendicular to the axis of the outer tube; the gas tube and the sampling tube are fixed by the support plate; and more than two sampling tube beams are arranged in the sampling tube. Sealing isolating gasbags coat the outer tubes of the sealing isolating tubes; and airbag branch tubes connecting the sealing isolating gasbags and the gas tube are arranged in the tube walls. Sampling openings connected with the sampling tube beams are arranged on the outer tubes of the monitoring sampling tubes and the tail tube; and the lower end of the tail tube is sealed by a sealing base plate. With the device, monitoring and sampling of underground water of the multi-layer water-containing layer and the same water-containing layer at different depths can be realized.

The invention relates to a manual lifting device, and in particular relates to an automatic tail rope rolling and releasing manual capstan. The automatic tail rope rolling and releasing manual capstan comprises a support, a U-shaped slot grinding core and a grinding core shaft, a left rocker arm and a right rocker arm, wherein the support is provided with a rotatable U-shaped slot tail rope wheel, a driven gear is fixed on one end face of the U-shaped slot tail rope wheel, the driven gear is meshed with an intermediate gear arranged on the support, and the intermediate gear is also meshed with a driving gear fixed on the end face of the U-shaped slot grinding core; and a rear bidirectional pawl is matched with the driven gear fixed on the end face of the U-shaped slot grinding core, and the rear bidirectional pawl is arranged on the support. Only one man is required to operate, the labour force is saved, and a malady that a tail rope of a capstan is required to be pulled by a specific person can be eliminated; and a tail rope automatically advances and retreats along with a hoisting stroke of an article and forward and reverse self-locking shifting forks are adopted, and an accident caused by exhaustion or accidentally drop of operating personnel can be prevented.

The invention discloses a portable dry-wet dual-purpose smoothbore pipe and line bore pipe inner surface wiping and cleaning device. Device wiping liquid is supplied through a quantitative spraying method, and supplying is even and controllable. Long-time and durable work of a standby power source is achieved through a small-power wiping and large-diameter pipeline mechanism. The device is compact and ingenious in structure and light in weight, and carrying and field work are facilitated. A ball head washing handle brush has the automatic advancing and retreating function, the axial force and deformation stressed by a flexible shaft are eliminated, abrasion of the flexible shaft is relieved, and rotation can be achieved in a labor saving mode. A reliable sealing structure is adopted, and a solution and gas do not leak. The device solves the problems that a current wiping machine depends on a power source and cannot wipe a large hole, carrying is not convenient, liquid supplying cannot be quantitative, spraying cannot be achieved, and equipment is corroded through leaking liquid. The wiping method is divided into a dry wiping mode and a wet wiping mode, spraying is not carried out during dry wiping, the ball head brush is directly used for rotary wiping, and during wet wiping, spraying and liquid supplying are carried out at the ball head brush while the ball head brush carries out rotary wiping.

The invention relates to an orthogonal field calibration device for a three-component magnetic probe and a calibration method thereof. The device is formed in a way that a thrust bearing and more than three stop blocks are arranged on a base; the stop blocks are used for limiting a rotary platform; the rotary platform is arranged on the thrust bearing; a cylinder is fixed on the rotary platform; the upper part of the cylinder is provided with two ear-shaped raised lines; a horizontal shaft coincides with a disk in diameter and is fixed on the disk; both ends of the horizontal shaft respectively pass through the two ear-shaped raised lines; the disk is hung between the two ear-shaped raised lines; the disk rotates around the horizontal shaft; the disk is provided with an angle scale; a three-component probe is fixed on the angle scale through a bolt or a rotary shaft; and one end of the three-component probe is provided with a connector. The device can completely ensure that three non-orthogonal magnetic probe sensitive shafts scan through a total space equiprobably as much as possible in the measurement process. The calibration device has a simple structure and low cost, and a special calibration environment is not needed, thereby, the measurement cost is greatly reduced, the fieldwork is facilitated, and the measurement efficiency is improved.

The invention relates to a zinc oxide arrester DC characteristic testing device and a zinc oxide arrester DC characteristic testing method. The zinc oxide arrester DC characteristic testing device comprises a microprocessor control module, a power supply module and an A/D converter, and further comprises a high-voltage power supply, a voltage sampling module, a current sampling module and a D/A converter, wherein the high-voltage power supply of the device integrates a constant-voltage and constant-current control circuit, a voltage-doubling rectifying circuit and a protective circuit; and the D/A converter controls output signals of the high-voltage power supply and controls the high-voltage power supply to output constant-current and constant-voltage signals. The method for testing the DC characteristics of a zinc oxide arrester by adopting the device comprises that: the high-voltage power supply outputs 1mA current signals in a constant-current way; a voltage collection circuit collects a voltage value of the tested zinc oxide arrester; the microprocessor control module calculates a value which is 0.75 time the voltage value; the high-voltage power supply outputs the voltage with the voltage value which is 0.75 time the collected voltage value in a constant-voltage way; the current signals are collected; and the electric property of the zinc oxide arrester is judged. All test items are automatically finished, which realizes the disassembly-free test and uninterrupted operation of the arrester and reduces the complexity of the test work.

The invention discloses a test device for vadose zone water flow movement under different buried depths. The test device comprises a measurement cylinder, a balance cup connected to the measurement cylinder and a Mariotte flash connected to the balance cup. The measurement cylinder is internally provided with a weighing sensor, the upper end of the weighing sensor comprises an inverted filter and an undistributed soil column from top to bottom in order, a runoff drain pipe is connected to a position at an equal height to the undistributed soil column on the upper end of the measurement cylinder, a seepage drain pipe is connected to the inside of the balance cup, and the Mariotte flash is internally provided with a third hydraulic sensor for measuring the flow fed from the Mariotte flash to the balance cup. The test device can monitor the surface runoff, soil infiltration capacity and evaporation capacity at the same time, has the characteristics of simple structure and low cost, effectively improves the measurement accuracy, and is convenient to use and repair.

The invention discloses a novel colorimetric sensing method for dual pathogenic bacteria, and the novel colorimetric sensing method is used for supersensitive detection of salmonella and staphylococcus aureus. The method establishes an ultra-quick PCR reaction system, so that a conventional PCR process with consumed time of about three hours is reduced to 5 minutes, and therefore, consumed time ofPCR reaction is remarkably reduced; the ultra-quick PCR reaction system loads a nucleic acid self-assembly developing module, so that a reaction signal is amplified again, supersensitive detection ofpathogenic bacteria is favorably realized, and the problem that the conventional PCR results are difficult for visual detection is solved. Compared with a conventional method, the detecting method and a biosensor are quicker, are more sensitive, are stronger in specificity, and are high in sensitivity, and detected results are reliable, so that analyzing and detecting steps can be simplified, analysis time is shortened, and above all, online real-time detection is possible, therefore, carrying and field operating are convenient in the microbiological detection field of the food safety and quick detecting field, and the application prospect is very good.

Disclosed is a handheld sweet osmanthus flower harvesting device. The handheld sweet osmanthus flower harvesting device comprises a tree branch beating device and a sweet osmanthus flower storage device used to collect sweet osmanthus flowers which are beaten down, wherein the tree branch beating device comprises a support rod of adjustable height, an electromagnetic poke device is installed at the top of the support rod, the electromagnetic poke device comprises a direct current loop circuit formed by connecting a direct current power source, an electronic switch and an armature winding through a lead wire, the armature winding is placed between paired magnetic poles, a poke rod which can follow the armature winding to rotate is installed on a position of the outer side of the armature winding, which is located in the direction of the center axis of the armature winding, through a winding rotation shaft, the sweet osmanthus flower storage device comprises a sweet osmanthus flower collection cloth with a round hole in the center and sizing steel wires arranged on the periphery of the sweet osmanthus flower collection cloth, the sweet osmanthus flower collection cloth is provided with a seam which extends from the center to the peripheral edge of the sweet osmanthus flower collection cloth, and a plurality of pairs of magnets are evenly distributed on two sides of the seam. The handheld sweet osmanthus flower harvesting device is simple to carry and easily used for field work, can improves harvesting efficiency and harvesting quality of the sweet osmanthus flowers, and has obvious economic value.

A GPIB hand device consists of liquid crystal screen, data and address buss, GPIB bus for connecting with external unit of GPIB, CPU connected to internal power supply, SDRAM, FLASH, MAC chip, CPLD chip, GPIB master control chip, driving chip of GPIB data bus and driving chip of GPIB bus control signal.

The invention provides a system and a method for realizing two-way short message communication between a Beidou terminal and a mobile phone. By using the system and the method, the two-way short message communication between the Beidou terminal and the mobile phone in a mobile phone signal coverage (2nd generation/3rd generation (2G/3G)) is realized, and a Beidou terminal user also can send position information to a mobile phone user, so that conventional communication, position monitoring, rescue and recourse and the like become flexible; and the system and the method are convenient to operate and high in applicability. The system provided by the invention comprises a mobile phone short message transceiving terminal, an information processing platform and a Beidou information transceiving terminal, wherein the information processing platform is respectively connected with the mobile phone short message transceiving terminal and the Beidou information transceiving terminal.

The invention discloses a digitizing automatic calibration device applied to a runway surface friction coefficient testing car, relating to calibration of a friction coefficient testing device. The calibration device is composed of a mechanical device, a control device and an onboard power supply, wherein the mechanical device is divided into an actuating mechanism and a support structure, wherein the actuating mechanism is composed of a motor-driven push rod and a pallet, and the support structure is composed of a roller wheel and a support; the control device is composed of a horizontal force sensor, a vertical force sensor, a conditioning circuit, a singlechip, a nixie tube display unit, a wireless remote controller and a control panel, i.e., a wireless remote transmitter. The calibration device carries out sampling, processing, displaying and control by a computer, and the precision of the calibration device completely satisfies the precision requirements of the runway surface friction coefficient testing car, thereby overcoming the disadvantages that a manual calibration method causes artificial reading errors, the precision grade of the calibration device or equipment is low and the operation of the whole calibration process is complex.

The invention provides a skid-mounted passenger cabin which comprises a skid-mounted outer cabin and an inner cabin arranged in the outer cabin, wherein the outer cabin comprises a metal framework and a metal plate, the metal framework comprises eight upper beams, four outer cabin pillars and eight lower beams, the metal plate comprises an outer cabin top plate, four outer cabin side plates and an outer cabin floor, one ends of the side plates are hinged to the upper beams or the lower beams while the other ends are provided with multiple buckles, lock rings are arranged on corresponding positions of the upper beams or the lower beams, the outer cabin is fixedly connected with the inner cabin through fixing devices, the bottom of the inner cabin and the bottom of the outer cabin are fixedly connected, and the inner cabin is provided with a door and a window. The skid-mounted passenger cabin, disclosed by the invention, is convenient to remove, easy and reliable to use and light and smart in structure and can be overlapped mutually.

The invention provides an ultrafast PCR-based colorimetric sensing new method used for visible ultrasensitive detection of Hg<2+>. According to the method, an amplification primer and a template of anultrafast Polymerase Chain Reaction (PCR) are designed according to mercury ion thymine mismatch, a color development module is self-assembled through the primer by combining enzyme-linked nucleic acid, so that a new mismatch-based mercury ion target function nucleic acid detection method and a biological sensor are created. The detection method and the biological sensor are faster and more sensitive than traditional methods, have characteristics of strong specificity, high sensitivity, and reliable detection result, simplify analysis and detection steps, shorten analysis time, moreover, makeonline real-time detection possible, and are portable and suitable for field work, thereby having a bright application prospect in the field of heavy metal rapid detection.

The invention provides a ground source heat pump mounting auxiliary device, and relates to an auxiliary device for vertical burying of a ground source heat pump underground heat exchanger. The groundsource heat pump mounting auxiliary device is mainly composed of a bracket, an arc groove roller shaft, a handle, a driving wheel, a driven wheel, a supporting frame and the like. The ground source heat pump mounting auxiliary device can increase the burying speed of the ground source heat pump underground heat exchanger, can ensure the construction quality, and further has the characteristics ofbeing in simple in operation, capable of saving energy, convenient to operate in a field, low in cost, convenient to apply and popularize and the like. The ground source heat pump mounting auxiliary device can be widely applied to vertical burying of the ground source heat pump underground heat exchangers all over the country.