55results about How to "Easy to inspect visually" patented technology

The invention relates to a thickness controller of a cast-in-place concrete floor and a method of the thickness controller of the cast-in-place concrete floor. The controller comprises round steel, steel cushion slices and a sleeve pipe. Two ends of the round steel are threaded. Three steel cushion slices are arranged on the round steel, wherein one slice is a fixed steel cushion slice and the other two slices are movable steel cushion slices which are respectively arranged on upper and lower surfaces of a template. The sleeve pipe is arranged between the fixed steel cushion slice and the movable steel cushion slices and sleeved on the round steel. The method of the thickness controller of the cast-in-place concrete floor includes the following steps. A twist drill is used for drilling a hole in a plate bottom template before the concrete is cast. The sleeve pipe is cut and then sleeved on the round steel, and a steel cushion slice is sleeved on the round steel again. The round steel penetrates the hole in the plate bottom template. A steel cushion slice is additionally arranged below the plate bottom template and screwed tightly through a screw nut. In time of casing with concrete, an upper surface of the steel cushion slice welded above the round steel is used as panel elevation control. After the concrete is congealed, the round steel is removed. A sleeve pipe hole is used as a detection hole of thickness of a floor when an entity is detected. The thickness controller of the cast-in-place concrete floor and the method of the thickness controller of the cast-in-place concrete floor can control all sorts of plates with thickness ranging from 80mm to 320mm.

The invention discloses test paper for measuring moisture of transformer oil, preparation and an application. The test paper is prepared from a common cellulose paper piece with the cellulose content being 99.1%-99.6% as a carrier by soaking in a color developing agent, wherein the color developing agent is prepared from composition as follows: mixed powder of 38%-40% by mass of copper sulfate, 38%-40% by mass of calcium sulfide and 20%-22% by mass of acid blue which are weighed in an anhydrous environment is dissolved in petroleum ether, dispersed and mixed uniformly. The test paper is light blue and can detect trace moisture in the transformer oil sensitively, the color change process of the test paper is light blue, dark blue, aquamarine blue and black blue in sequence, the test paper is dark blue when the moisture content is 20 ppm, the color changes obviously, the period of validity is long, detection is convenient and visual, manufacture is simple, and the cost is low.

The invention relates to the field of ropes, in particular to an impact dynamic load test model device for a rope. The device comprises the rope, an impact mechanism, a tension sensor, a fixing mechanism and a release mechanism, wherein the tension sensor is arranged at the lower end of the fixing mechanism, the lower end of the tension sensor is connected to the rope, the lower end of the rope isconnected to the impact mechanism, the release mechanism can release the impact mechanism, the fixing mechanism and the release mechanism are both arranged on an elevated frame, and the release mechanism is fixed on the elevated frame through an initial fixing rope. The device has the advantages that the design is scientific and ingenious, workers can conveniently and intuitively detect the impact coefficient of the rope, a low-speed impact dynamic load simulation test can be carried out, so that the capacity of the structure for bearing low-speed and large-impact loads is verified, and the response characteristic of the structure under the low-speed impact load is obtained; and the standard for a novel impact experiment is provided, the test and operation of the workers in the field arefacilitated, and the device has the progressiveness and the instructive property in the field.

The invention relates to a direct-current transmission converter valve lightning arrester monitoring device and method. The direct-current transmission converter valve lightning arrester monitoring device comprises a monitoring loop installed between the end of a lightning arrester and a shielding ring, the monitoring loop is used for detecting the current of the lightning arrester, at least one pair of plate electrodes with air gaps are arranged in the monitoring loop in a series mode, and the action condition of the lightning arrester is monitored by detecting whether the plate electrodes break down or not. The direct-current transmission converter valve lightning arrester monitoring method comprises the step that whether the lightning arrester acts or not is detected by detecting the breakdown phenomenon of the plate electrodes. Due to the fact that the lightning arrester of a converter valve is installed in a valve hall of the converter valve, the voltage on the lightning arrester is quite high, the electromagnetic environment of the lightning arrester is quite complex, and electromagnetic interference is serious. The monitoring loop is not provided with any electronic part and installed between the end of the lightning arrester and the shielding ring, and thus the interference-resisting capability of the monitoring device is greatly improved.

The invention relates to an integrated digital weather sensor. The integrated digital weather sensor is composed of a temperature compensating device, a wind pressure measuring device and a digital power supply device. The temperature compensating device is connected with the wind pressure measuring device through a common part upper disk (11), and a part outer barrel (9) in the wind pressure measuring device is integrated with a part connecting component (31) in the digital power supply device through mutually fit threads. The integrated digital weather sensor can realize the integration of the measuring device and the power supply device, and is more convenient for carrying and mounting; the temperature compensating device is independent from a wind speed measuring device, and a measurement result is more accurate; the measurement result is output as a digital signal, and the anti-jamming capability is stronger and the performance is more stable; and the integrated digital weather sensor can provide environment parameters such as wind speed, wind pressure, air temperature and the like for a vehicle-mounted fire control system.

A front axle steering system fatigue test device disclosed by the present invention comprises a test bench, the edge of the test bench is fixedly connected with an edge frame, the two sides of the edge frame are fixedly provided with wheel disc limiting members, and one side of the top of the edge frame is rotatably connected with a test driving member; a pull rod moving groove is formed in one side of the top of the test bed, rocker arm moving grooves are formed in the two ends of the pull rod moving groove, and a pull rod test piece is fixedly installed on the other side of the top of the edge frame. During use, power input is performed on the whole front axle steering system, the wheel disc limiting pieces are used for pushing and limiting the two steering wheel discs, and the stability of the whole position posture of the front axle steering system in the testing process is improved; by arranging the pull rod test piece, the pull rod replacement plate and other structures, independent detection of the transmission pull rod and the trapezoidal rocker arm is achieved, and detection is more visual and convenient.

The invention discloses an amplification primer composition and a kit for detecting a new coronavirus. The amplification primer composition comprises a first primer group and a second primer group, the first primer group comprises a first forward primer and a first reverse primer, the second primer group comprises a second forward primer and a second reverse primer. In addition, .four basic groups in each sequence of the first forward primer, the first reverse primer, the second forward primer and the second reverse primer are modified by locked nucleic acid, one of the four basic groups is a 3'terminal basic group, and the distance between every two adjacent basic groups modified by the locked nucleic acid is 3-6 basic groups; the basic group modified by the locked nucleic acid is adenine and / or thymine. The invention also discloses the kit for detecting the new coronavirus. According to the amplification primer composition and the kit for detecting the new coronavirus, the kit has the characteristics of high sensitivity, strong specificity, good stability and the like, can be used for rapid detection of new coronavirus pneumonia, and has a wide application prospect.

The invention disclosed a composition and kit for detecting new coronary viruses.The amplifier primer composition includes the first primer group and the second primer group, which includes the first positive primer and the first reverse primer, which includes the second primer groupThe second reverse primer, and the first positive primer, the first reverse primer, the second positive primer, and the second reverse primer of the primer are modifiedOne of the alkali bases of the four bases is 3 'end base base, each adjacent two neighboring alkali bases that are modified by nucleic acid is 3 to 6 bases.Gonine and / or thymine.The present invention also disclosed a kit for detecting new coronary viruses.The kit of the present invention has the characteristics of high sensitivity, strong specific type, and good stability. It can be used for rapid detection of new coronary virus pneumonia, and its application prospects are broad.

The invention relates to an acousto-optic wireless high-voltage detection device, which is specifically applied in the field of outdoor AC high-voltage line maintenance; it includes a housing installed on a utility pole through a connecting buckle, a circuit device installed in the housing, a vertical heat dissipation plate, The solar panel installed above the shell through the connecting pipe and the insulating and moisture-proof sealed box installed on one side of the shell and equipped with desiccant; the circuit device includes a wireless control circuit, an auxiliary circuit and a detection circuit; the present invention forms a vertical The heat dissipation channel acts as a chimney effect, which is conducive to heat dissipation; energy saving and environmental protection; keeps all parts dry and insulated; improves work efficiency and improves work comfort; safe and reliable, easy maintenance; convenient and intuitive detection; simplified circuit structure, intelligent control; reduce electromagnetic pollution .

The invention discloses a high-precision testing system for a solid-state hard disk, which includes an operating table, a test box is fixedly installed on the top of the operating table, a temperature testing mechanism is fixedly installed on the top of the test box, and a test box is fixedly installed on the left side of the test box. Humidity testing mechanism, the bottom of the test box is fixed with an anti-seismic testing mechanism, the top of the seismic testing mechanism is fixed with a positioning tool, and the interior of the positioning tool is clamped with a solid-state hard disk body, and the inside of the test box is right The upper end of the side is fixed with a conductive mechanism, and the lower end of the conductive mechanism is electrically connected to the solid-state hard disk body; this equipment can test the solid-state hard disk more comprehensively and accurately by setting up a temperature testing mechanism, an anti-seismic testing mechanism and a humidity testing mechanism. At the same time, the installation mechanism is provided, which makes the installation and disassembly of the device more convenient, and further makes the device more practical, has a wider application prospect, and is worthy of popularization and use.

The invention discloses test paper for measuring moisture of transformer oil, preparation and an application. The test paper is prepared from a common cellulose paper piece with the cellulose content being 99.1%-99.6% as a carrier by soaking in a color developing agent, wherein the color developing agent is prepared from composition as follows: mixed powder of 38%-40% by mass of copper sulfate, 38%-40% by mass of calcium sulfide and 20%-22% by mass of acid blue which are weighed in an anhydrous environment is dissolved in petroleum ether, dispersed and mixed uniformly. The test paper is light blue and can detect trace moisture in the transformer oil sensitively, the color change process of the test paper is light blue, dark blue, aquamarine blue and black blue in sequence, the test paper is dark blue when the moisture content is 20 ppm, the color changes obviously, the period of validity is long, detection is convenient and visual, manufacture is simple, and the cost is low.