16results about How to "Suitability for use" patented technology

This utility model discloses an explosion-proof junction box with automatic retractable cable. It features a built-in winding device for cable extension and retraction. During adjustment, the cable is simply pulled out for connection, and automatically retracts after resetting, preventing redundant cable accumulation. It replaces the traditional rigid "pipeline-equipment" connection with a flexible "pipeline-telescopic junction box-equipment" connection, creating a buffer zone for debugging. This significantly reduces wiring and disassembly time, improving debugging efficiency. The cable can be reused repeatedly, resulting in significant economic benefits. The limit buckle design restricts excessive cable extension, and the junction box is detachable and reusable within a sealed cavity, enabling dynamic cable extension and retraction. This overcomes the technical bias of traditional explosion-proof equipment with immovable wiring, making it suitable for large-scale industrial use and promotion.

The invention provides a construction method and application of an SERS (Surface Enhanced Raman Scattering) biosensor for detecting vomitoxin. The SERS biosensor is used for rapidly detecting the vomitoxin (DON) in real time. Ag is sputtered on the surface of the filter paper through a magnetron sputtering method, so that the surface of the filter paper has a Raman signal enhancement effect. An aptamer (Apt) of vomitoxin is selected as a recognition sensing element to specifically capture DON, Apt is connected to filter paper through an Ag-S bond, Au-4-ATP-cDNA is further modified and connected to the filter paper through complementation of Apt and cDNA, and 4-ATP serves as a signal molecule to provide a Raman signal. When the DON exists, the Apt is combined with the DON and is separated from the cDNA, the Raman signal of the 4-ATP is weakened after the Au-4-ATP-cDNA falls off, and the DON is quantitatively analyzed by detecting the Raman signal change of the 4-ATP. The sensor has high sensitivity, specificity and stability, provides a new idea for on-site rapid detection and real-time monitoring, and has application value and application prospect.

According to the steering wheel angle detection device, rotation of the steering wheel is converted into rotation of the magnetic steel coaxial with the chip in a transmission mode of the pair of gears, changes of the magnetic steel are converted into changes of electric signals of the chip according to the electromagnetic induction principle, and accurate angle measurement is achieved by detecting the changes of the electric signals of the chip. According to the control outgoing line position of the sensor, the sensor shell is provided with interfaces with different angles, the control outgoing line can be straightly out or bent out, and meanwhile, a threading groove is formed between the straight-out side and the bent-out side, so that bent-out wiring is facilitated. Through the arrangement, the overall structure is simplified, and the angle detection range is expanded to theoretical infinity; the outgoing line angle of the sensor is variable, so that different matching requirements of different vehicles can be met; the device is low in cost, convenient to manufacture, stable and reliable in structure and suitable for large-scale industrial use and popularization.

According to the brake for the transmission, when the brake is used, abrasion and noise caused by relative movement between the intermediate shaft serving as a rotating part and the piston of the brake do not exist, and compared with the prior art, noise pollution is reduced. In addition, due to the fact that the installation positions of the dual discs are optimized, the intermediate shaft can be designed to be of a hollow structure, the overall mass is reduced, meanwhile, the structure of a brake piston is simplified, the effect of reducing the machining and manufacturing difficulty is achieved, and the brake piston is suitable for large-scale application and popularization in the industry.

This invention discloses a method for wavy directional drilling and grouting modification of complex fractured rock strata. First, by analyzing the overburden structure of the coal seam roof, permeable windows in the key water-resistant layer are identified. Second, by analyzing the overburden structure of the coal seam roof, the spatial structure of the weathered and normal bedrock layers in the window area is identified. Third, the height of the caving zone and fracture zone formed by coal seam mining in the permeable window area is predicted. Fourth, the relationship between the mining-induced water-conducting fractures and the exposed weathered bedrock layer in the window area is analyzed to identify areas where grouting can be used to treat the permeable window. Fifth, based on the identified areas where grouting can be used, wavy directional boreholes are designed on the surface in the weathered bedrock layer of the window area. Sixth, the wavy directional boreholes are drilled and grouting is carried out to create an artificially reconstructed water-blocking layer in the permeable window area, thereby reducing water inflow from the roof of the coal mining face and protecting groundwater resources.

This invention relates to the field of traditional Chinese medicine technology, specifically to a method for preparing concentrated Astragalus membranaceus pills and its application, including the following steps: (1) preparing a clear extract by alcohol extraction; (2) making pills by plastic molding; (3) drying the pills at a constant temperature. In the pill-making process, this invention selects 100-mesh Astragalus membranaceus mixed fine powder and adopts a mass ratio of clear extract to fine powder of 1:2. Since the 100-mesh powder has a uniform particle size and a moderate specific surface area, it can fully contact and bond with the clear extract, avoiding the problem of the pills being rough and cracked due to excessive particle size and the pills being too fine due to excessive moisture dissipation. The 1:2 ratio makes the soft material suitable for its softness and hardness, so that it will not be loose and difficult to form due to excessive powder ratio, nor will it cause adhesion and blockage of the mold due to excessive clear extract ratio. Combined with the gradient humidity soft material preparation technology, 60% purified water is added first and mixed evenly, and then the remaining water is added in two batches. Low-frequency vibration is applied simultaneously for mixing, which can make the internal humidity of the soft material uniform and the bonding force stable, thereby obtaining wet pills with smooth surface, round shape and no cracks.

This utility model relates to the field of mechanical testing equipment technology, and discloses a pneumatic concentric measuring instrument, including a base plate. A fixing component is provided on the upper surface of the base plate. The fixing component includes a cylinder, which is fixedly connected to the upper surface of the base plate. A pressure block is fixedly connected to the output end of the cylinder. A bearing is rotatably connected to the inner wall of the pressure block. A connecting column is fixedly connected to the outer wall of the bearing. A spring is sleeved on the outer wall of the connecting column. One end of the spring is fixedly connected to the lower surface of the pressure block, and the other end is fixedly connected to the upper surface of the connecting column. A product base is fixedly connected to the upper surface of the base plate, and a product body is sleeved on the outer wall of the product base. The product body is in contact with the connecting column. In this utility model, the pressure block is driven by a cylinder to fix the product body, achieving stable clamping of the tested product during the testing process and avoiding positioning deviations that may occur with manual clamping.

This invention discloses a multifunctional medical repair ozone oil composition and its preparation method, belonging to the technical field of medical external care preparations. The composition uses 1%–60% ozonated oil and animal repair oils as its core components, and can selectively add petrolatum, vitamin E, chitosan, and natural plant fragrance essential oils. The surgical skin-specific formula can add peppermint and borneol to enhance penetration, while the gynecological formula is gentle and non-irritating. This product has multiple effects, including antibacterial and anti-inflammatory properties, antipruritic and analgesic effects, moisturizing and repairing properties, and promoting the healing of mucous membranes and skin wounds. It is suitable for gynecological intimate care, surgical skin repair, and can also be applied externally to the back to soothe respiratory discomfort and to the abdomen to relieve abdominal pain and bloating. It has a wide range of applications, high clinical value, and is suitable for large-scale production and clinical promotion.

The utility model discloses a cutting wood shearing device capable of flatly shearing tree branches, which comprises a working platform, a driving device and a disk saw, and the working platform is provided with a through groove for the disk saw to pass through; the upper portion of the disk saw is exposed above the working platform, the lower portion of the disk saw is located below the working platform, and the driving device is connected with the disk saw and used for driving the disk saw to rotate to cut off branches; the four corners of the bottom of the working platform are each provided with four supporting columns, the rear portions of the two supporting columns on one side are each provided with a moving wheel, and a pull rod is arranged in front of the two supporting columns on the other side. The bottoms of the two moving wheels are flush with the bottoms of the four supporting columns. The cutting slip shearing device capable of flatly shearing the forest branches is easy to operate, time-saving and labor-saving, and the branch cutting efficiency is greatly improved. Moreover, the device is simple in structure and convenient to move, has better practicability and safety, and is suitable for peasant households and small-scale planting.

This utility model discloses a charging pile with self-protection function, relating to the field of charging pile technology. It includes: a charging pile body; a protective component installed at the front of the charging pile body; the protective component including a base platform; an inclined support portion integrally formed on the outer wall of the base platform; an installation portion integrally formed at the upper end of the support portion; a crash barrier installed on the front outer wall of the installation portion; a warning sign installed on the outer wall of the crash barrier; and multiple support components installed at the rear of the installation portion. The crash barrier includes a first U-shaped crash bracket; a second U-shaped crash bracket is provided below the first U-shaped crash bracket; and a fixing seat is installed at the rear end of both the first and second U-shaped crash brackets. The fixing seat is installed in conjunction with the installation portion by bolts. This solves the problem that existing charging piles lack physical protection structures, causing vehicles to collide with the charging pile during reversing.

The present application relates to the field of adsorption materials, and discloses a hierarchical pore MOFs-based composite phase change material, a preparation method and application thereof.The MOFs-based composite phase change material comprises a hierarchical pore MOFs material having micropores, mesopores and macropores simultaneously, and a phase change material loaded in the macropore channels of the hierarchical pore MOFs material.The hierarchical pore MOFs-based composite phase change material prepared by the present application has a higher specific surface area and pore volume, and has a certain number of micropores, mesopores and macropores respectively, and the functions of the pore channels of different sizes are fully developed.In the process of adsorbing VOCs in micropores, the mesopores are beneficial to the mass transfer of rapid adsorption of the adsorbate, the adsorption rate is improved, and the phase change material in the macropores can store adsorption heat to inhibit the bed temperature rise and improve the bed adsorption efficiency.

The utility model provides a construction device under a water supply and drainage pipeline road. A road excavation-free technology is adopted for carrying out water supply and drainage pipeline road under-crossing construction. The supporting frame is used for being matched with a drilling machine to drill a road, and the drilling distance of the mode can meet the width requirement of the rural road; the drilling machine tool in the construction device under the water supply and drainage pipeline road is small, exquisite and flexible, can adapt to complex construction environments on the two sides of a rural road, guarantees efficient operation while saving resource cost, avoids potential safety hazards, and is suitable for industrial large-scale use and popularization.

The present application belongs to the technical field of product packaging, and particularly relates to a well-sealed inner-piercing cover body and a packaging container with the same. In the fields of food, medicine or cosmetics, two or more components are often packaged separately to avoid chemical reaction or quality decline during long-term storage and transportation. The present application can simply and quickly mix and blend two independently sealed materials together. The cover body is used to contain a first material, and a packaging container contains a second material. The cover body is assembled on the packaging container through threaded connection. The cover body comprises a main cover, a secondary cover and a piercing member. The main cover is connected with the bottle body through threads. The piercing member is arranged in the main cover. The secondary cover is arranged on the upper part of the main cover and the piercing member. The present application can conveniently mix as needed, provide more convenient use experience, effectively avoid cross contamination, and has a lightweight structure design, which is suitable for travel and outdoor use, and airtight structure ensures hygiene during storage.

The application discloses a near-infrared fluorescent probe for detecting viscosity of liquid food, and a preparation method and application thereof. The fluorescent probe is 2-(2-6-(diethylamino)-1,2-dihydrocyclopenta[b]chromen-3-yl)vinyl)-3-ethyl-1,1-dimethyl-1H-benzo[e]indol-3-ium salt. The fluorescent probe contains two kinds of rotor elements, i.e. a vinyl bond and a single bond, which is beneficial to sensitive response of the probe to viscosity change. The probe has a long emission wavelength in a high-viscosity solvent, which can reach 787 nm, and has strong fluorescence penetration, low background interference and high signal-to-noise ratio. In addition, the probe has good selectivity for the high-viscosity solvent and high sensitivity, and therefore, the probe can be applied to detection of viscosity of liquid food.

The utility model discloses a novel device for analyzing the motion behavior of drosophila, which comprises a plurality of frame bodies and a plurality of plate bodies, the frame bodies and the plate bodies are made of transparent plates or acrylic plates, the bottom of each frame body is provided with a plurality of first tenons, the top of each frame body is provided with a plurality of first mortises corresponding to the first tenons, and the first mortises are provided with second mortises corresponding to the second tenons. The first tenons are matched with the first mortises in a clamped mode, limiting grooves corresponding to the plate bodies are formed in the top and the bottom of the frame body correspondingly, and second tenons are arranged on the two sides of the plate bodies correspondingly. According to the fruit fly movement observing and monitoring device, through the arrangement of the frame bodies and the plate bodies, the frame bodies can be spliced and assembled through the first tenons and the first mortises, the plate bodies are installed at the tops or the bottoms of the frame bodies through the second tenons and the second mortises, and therefore the frame bodies and the plate bodies can be spliced and assembled into the fruit fly movement observing and monitoring device; and an additional adhesive or screw assembly mode is not needed, the device is environment-friendly and easy to operate, different sizes can be assembled according to needs, and parts are easy to maintain and replace.

This utility model relates to the field of tobacco storage device technology, specifically to a portable tobacco storage box, including an outer shell; a moisture-proof component installed inside the outer shell to prevent tobacco stored inside from becoming damp; and a locking component installed inside the outer shell to lock the moisture-proof component. Compared with the prior art, this application constructs an efficient air circulation moisture-proof system by setting a moisture-proof component, achieving a moisture-proof solution with passive moisture absorption and uniform airflow. Simultaneously, the use of an automatic locking and easy-to-unlock locking component ensures the stability of the moisture-proof component during transportation and use, improving the overall moisture-proof effect and service life. Furthermore, the modular structural design makes the device more flexible and convenient in daily use and maintenance, meeting users' practical needs for portable moisture-proof tobacco storage.