13results about How to "Isolated entry" patented technology

The utility model provides a self-propelled hollow grouting anchor rod with gas early warning and gas pumping and discharging functions, which comprises a double-layer hollow rod body, wavy threads are arranged on the rod body, a self-propelled drill bit is arranged at the tail end of the rod body, the drill bit is fixedly connected with the rod body, a first grouting through hole and a second grouting through hole are arranged on the drill bit, and the first grouting through hole is communicated with the second grouting through hole. A gas through hole is formed in the side, close to the drill bit, of the rod body and communicated with an outer ring pipeline of the double-layer hollow rod body, the end, away from the drill bit, of the rod body is sleeved with a closed rubber sleeve, the closed rubber sleeve is fixed to the rod body, a metal tray is arranged on the side, away from the rod body, of the closed rubber sleeve, and the rod body penetrates through the closed rubber sleeve and the metal tray. According to the utility model, on the basis of ensuring the basic anchor rod function in the gas-containing stratum of the tunnel, the functions of pressure relief and pumping drainage of the stratum gas and grouting of the stratum can be realized, the high-precision monitoring of the gas concentration and the gas pressure is realized, and the safety of the construction process that the tunnel passes through the gas-containing stratum is greatly enhanced.

The utility model relates to the technical field of crushing devices, and discloses a raw material crushing device for feed production, which comprises a supporting rod, a workbench is fixedly mounted at the top of the supporting rod, and a crushing device body is fixedly sleeved in the workbench. The top and the bottom of the crushing device body penetrate through the worktable and extend to the upper part and the bottom of the worktable; the crushing mechanism is arranged at the top of the workbench; wherein the crushing mechanism comprises a pneumatic cylinder. Through the arrangement of the pneumatic cylinder, the connecting plate, the rotating rods, the connecting rods and the clamping plates, when the pneumatic cylinder operates, the connecting plate can be driven to move downwards, then the two rotating rods rotate to drive the two connecting rods to move oppositely, the two clamping plates move oppositely, and the purpose of smashing large-specification round raw materials is achieved; and the crushing efficiency of the crushing device is improved, and meanwhile, the practicability of the device is also improved.

The utility model relates to coffee bean powder grinding device technical field, concretely relates to an adjustable anti -caking coffee bean powder grinding device of grinding granularity, including the shell, the inside fixed setting of shell has the grinding inner box, the inside opening of grinding inner box has the grinding chamber, the top of grinding chamber is opened and has the movable slot. The utility model discloses the setting of one -way exhaust port, realizes the hot gas and steam that generates when grinding can smoothly pass through, avoids the condensation and leads to the lump, wherein the sealing plug and one -way exhaust port are through spring no.

The utility model relates to the technical field of nasal cavity cleaning equipment, and discloses waterproof nasal cavity cleaning equipment with a display function and capable of preventing liquid medicine from overflowing, and the waterproof nasal cavity cleaning equipment comprises a shell, a bottom cover, a circuit board, a battery, a lens, an air pump, a liquid storage bin, a liquid suction pipe, an upper cover, a drainage cover, a nozzle, a dustproof cover and a one-way valve, the display screen and the circuit board are connected through an FPC, and the lower surface of the circuit board is fixedly connected with an air pump. The starting of the air pump is controlled by the MCU, the display screen is controlled to display information, and the displayed content is displayed through the visual window of the lens. The lens and the shell are fixed through double faced adhesive tape, glue, ultrasonic connection and the like, the display screen can be provided with various functions through keys, such as information of working modes, working time, electric quantity, use times, alarm clock timing and the like, and therefore the equipment has a visual display function, and the purposes of remarkably enhancing user experience and improving information transmission efficiency are achieved.

This application discloses an ice maker with button control, relating to the field of ice makers. It includes an ice maker body, which includes an ice dispensing seat. A mounting base is provided on one side of the surface of the ice dispensing seat. An outlet is provided on the side of the mounting base away from the ice dispensing seat, directly opposite the ice dispensing seat. An ice crushing outlet is provided inside the mounting base. The ice crushing outlet is equipped with a fixed ice crushing roller and a rotating ice crushing roller for crushing ice. A moving mechanism is provided on one side of the surface of the ice dispensing seat to drive the rotating ice crushing roller to move horizontally. The gap between the fixed ice crushing roller and the rotating ice crushing roller is adjustable by controlling the movement of the rotating ice crushing roller through the moving mechanism. By driving the rotating ice crushing roller to move horizontally through the moving mechanism, the gap between it and the fixed ice crushing roller can be flexibly adjusted, enabling the production of ice crushed of different particle sizes according to user needs, meeting diverse requirements for ice crushing coarseness in different scenarios.

The utility model belongs to the technical field of ventilation devices, and particularly relates to a shutter frame which is formed by integrally bending a plate and provided with a base part, first side walls oppositely arranged on the first opposite two sides of the base part and second side walls oppositely arranged on the second opposite two sides of the base part. The plate is bent on the first two opposite sides along the edge of the base part to form a first flat folding part, and is vertically bent along the first flat folding part to form the first side wall; second flat folding parts are formed on the second two opposite sides of the plate along the edge of the base part, the plate is vertically bent along the second flat folding parts to form the second side wall, the adjacent first side wall and the second side wall are connected with each other, and the integrated frame is high in integrity, so that the sealing performance is good, especially the effective waterproof effect is achieved, the frame is high in rigidity and strength, and the service life of the frame is prolonged. And abnormal sound is not easy to generate.

This invention relates to the technical field of aseptic inoculation loops, and discloses a fully enclosed aseptic inoculation loop device, comprising a sealed box assembly, an inoculation mechanism located at the top opening of the sealed box, and a plate culture medium placed at the bottom of the inner cavity of the sealed box. The sealed box assembly includes a sealed box and a sealed door. The inoculation mechanism consists of a segmented feeding and marking mechanism, a rubber sealing cover, and an inoculation loop fixed at its lower end. The upper and lower ends of the rubber sealing cover respectively seal the inner wall of the inoculation opening and the outer wall of the vertical toothed plate. The beneficial effects of this invention are: by setting up a sealed box assembly, an inoculation mechanism, and a built-in plate culture medium, a closed aseptic working cavity is formed by the sealed box and the sealed door. The rubber sealing cover provides a comprehensive seal to the top opening of the box, completely isolating external bacteria and contaminants from entering the cavity. Structurally, this achieves a fully enclosed aseptic operation throughout the inoculation process, eliminating the problem of bacterial contamination caused by open inoculation.

This utility model relates to the field of magnetic levitation rotor technology and discloses an emergency protection structure for a balanced magnetic levitation rotor. It includes an axial rotor with a rotor blade mounted on it, and a locking pin fixedly connected to the axial rotor. It also includes a protective bearing assembly coaxially mounted on the axial rotor. This protective bearing assembly provides support to the axial rotor when the magnetic levitation buoyancy disappears due to equipment start-up, shutdown, or malfunction, preventing equipment damage and improving system reliability. In this utility model, the protective bearing assembly and locking pin, along with their interaction with the axial rotor, achieve precise support in emergency situations. When the magnetic levitation buoyancy is not stably established during equipment start-up or shutdown, or when a sudden malfunction in the magnetic levitation system causes the buoyancy to disappear, the protective bearing assemblies at both ends of the axial rotor can immediately provide mechanical support to the axial rotor, preventing rigid collisions between the axial rotor and the stator and effectively protecting the axial rotor.

The utility model relates to a heavy-load wheel-side planetary reducer which is characterized in that an input flange is connected with a fixed flange, and an input shaft is arranged in the fixed flange; the connecting flange is connected with the fixed flange, and the first double-row full roller bearing is arranged between the fixed flange and the connecting flange; the connecting flange, the flange gear ring and the rotating shell are fixedly connected; a high-speed shaft is arranged on the center shaft in the rotating shell, one end, close to the fixed flange, of the high-speed shaft is in transmission connection with the input shaft, a planetary gear train is arranged on the high-speed shaft, a gear ring is arranged on the inner wall of the flange gear ring and is in meshing transmission with the planetary gear train, and a second double-row full roller bearing is arranged between the planetary gear train and the rotating shell. The planetary gear train is used for supporting the rotary shell under rolling friction; a plurality of deep groove ball bearings are arranged between the planetary gear train and the input shaft and between the planetary gear train and the high-speed shaft and used for supporting the planetary gear train. The utility model has the advantages that the radial load bearing capacity is effectively improved; heating is reduced, and transmission efficiency is improved; and the hub reduction requirement under the heavy-load working condition is met.

A silver-graphene composite coating and a preparation method and application thereof belong to the technical field of electrical materials, and overcome the defects of high contact resistance, poor corrosion resistance, heat dissipation and wear resistance in the prior art. The silver-graphene composite coating of the present invention comprises a first nanosilver layer, a silver-graphene layer and a second nanosilver layer sequentially arranged on a substrate. The thermal conductivity of the silver-graphene composite coating provided by the present invention is ≥330W / m·K; the hardness is ≥80HV; the surface contact resistance is <20μΩ; the dynamic friction coefficient of the coating is ≤0.25; the environmental corrosion resistance of the coating satisfies the anti-sulfur test in 1% Na2S solution within 5h without discoloration, and the anti-sulfur test in 5% Na2S solution is 1h without discoloration.

The utility model discloses a fire extinguishing protection device for an oil-immersed transformer, and relates to the technical field of oil-immersed transformers, the fire extinguishing protection device comprises a transformer main body and a fire control cabinet, a fire detector is fixed on the transformer main body, an oil supplementing pipe is fixed on the transformer main body, and a cutoff valve is fixed on the oil supplementing pipe; an oil discharge pipe is fixed to the top of the transformer body, the oil inlet end of the oil discharge pipe extends into the transformer body, and an air inlet pipe is fixed to the bottom of the transformer body. A plurality of branch pipes are fixed to the air outlet end of the air inlet pipe, the air outlet end of each branch pipe extends into the transformer body, and a safety valve is fixed to each branch pipe. The transformer further comprises a fire extinguishing protection assembly, and the fire extinguishing protection assembly conducts fire extinguishing treatment on the transformer body in an oil discharging and nitrogen injecting mode. The fire detectors are glass ball type fire detectors, and the number of the fire detectors is more than six. A fire extinguishing mode of discharging oil and charging nitrogen for the transformer main body can be realized, and the purpose of fire prevention and extinguishment is achieved.

The utility model relates to a kind of friction damping spherical support, including upper support plate and lower support plate, and the spherical support is detachably installed between the lower surface of upper support plate and the upper surface of lower support plate by bolt, and the spherical support includes spherical surface plate and spherical crown lining plate;Spherical crown lining plate top is equipped with arc-shaped groove, and the lower end of spherical surface plate is equipped with spherical convex surface compatible with arc-shaped groove, and spherical crown lining plate is slidably matched with the spherical convex surface of spherical surface plate by arc-shaped groove;The upper end surface of spherical surface plate is fixedly connected with upper slide plate, and the lower end surface of spherical crown lining plate is fixedly connected with lower slide plate, and upper slide plate and lower slide plate are all made of polyfluoroethylene wear-resistant material;Between upper support plate and lower support plate, damping component distributed around the circumference of spherical crown lining plate is also installed.The utility model optimizes friction pair structure and material, simplifies damping component, realizes stable damping, and prolongs service life.

This utility model provides a sensor housing and a building data acquisition sensor, belonging to the field of sensor technology. The housing is used to house a sensor module for acquiring building parameters. The housing has at least one fixed side for fixing the sensor housing to the building being measured. The fixed side has several heat dissipation channels extending from the inside of the sensor housing to the outside and passing through the fixed side. Each heat dissipation channel has an air inlet and an air outlet, which are staggered. The sensor includes the aforementioned sensor housing. The sensor housing of this utility model solves the problem of the lack of a consistent sensor housing that prevents rainwater ingress and has high heat dissipation performance in the prior art.