6results about How to "Avoid being in" patented technology

The invention discloses a naphthalene method phthalic anhydride pre-condenser device, and relates to the technical field of condensers, the naphthalene method phthalic anhydride pre-condenser device comprises a supporting base, through use of a protection assembly, a phthalic anhydride sensor can drive an electric telescopic rod to contract after detecting phthalic anhydride, the electric telescopic rod drives a connecting gear to move, a motor drives a thin shaft to rotate, and a baffle blocks an air outlet pipe; and meanwhile, the driven shaft drives the transmission blades to rotate, so that a decomposing agent is sprayed into the shell through the nozzles at the bottom of the liquid spraying ring, and the decomposing agent decomposes the phthalic anhydride gas for harmless treatment, so that the phthalic anhydride gas can be recycled. And the phthalic anhydride gas inlet and outlet is closed, and the phthalic anhydride gas in the shell is decomposed and harmlessly treated, so that maintenance personnel can detect the leakage condition of the device safely, and the harm to personal safety due to the leakage and diffusion of the phthalic anhydride gas is avoided.

The utility model provides a concrete pouring device for road construction, which relates to the field of road engineering and comprises a machine body, the bottom surface of the machine body is fixedly connected with two fixing plates, a rotating rod is rotatably connected between the two fixing plates through a bearing, and the outer surface of the rotating rod is fixedly connected with a rotating disc. The outer surface of the rotating disc is fixedly connected with a plurality of circumferentially-distributed blocking frames, and the bottom face of the machine body is fixedly connected with two limiting plates. According to the concrete pouring device for road construction, through cooperation of a mounting blocking frame, a contact piece, a sliding rod and an impact plate, the impact plate can be driven to impact a vibration piece in the rotating process of a rotating rod, so that the vibration piece can generate vibration, and stones in concrete can slide into the concrete under the influence of vibration; stone blocks are prevented from being located on the surface of concrete, the concrete can be trowelled through cooperation of a scraping plate, the concrete can be in a flat state, and the pouring quality of the concrete is improved.

The utility model relates to a pressing device for damping sound insulation board production, which belongs to the technical field of damping sound insulation board production and comprises a workbench and a mounting top plate arranged at the top of the workbench, and a linkage pushing mechanism convenient for workers to load and unload is arranged between the workbench and the mounting top plate. According to the pressing device for damping sound insulation board production, a telescopic air cylinder is arranged to drive a connecting plate and a lower pressing plate to move downwards, then a fixing base and a mounting frame are arranged, so that the lower pressing plate can extrude a rolling wheel, the mounting frame is driven to rotate clockwise, then the mounting frame rotates to drive a rotating plate to rotate, and through arrangement of a movable block and a movable groove, the rotating plate can rotate clockwise; and meanwhile, a connecting plate drives a pressing plate to move downwards, so that the sound insulation plate can be subjected to pressing treatment, the situation that the hands of a worker are located at the bottom of the pressing plate can be avoided, and the safety of the worker is improved.

This invention discloses a superconducting melting device that uses a permanent magnet hollow motor to drive a low-temperature superconducting coil, belonging to the technical field of metal melting equipment. It includes a support base with a rotating connecting seat fixedly connected to its top. Through the linkage between the hollow motor and the low-temperature superconducting coil, when the hollow motor drives the hollow motor rotor to rotate, the rotor drives the low-temperature superconducting coil to rotate synchronously. The low-temperature superconducting coil directly generates a dynamic rotating magnetic field, which in turn forms a uniform rotating magnetic field inside the melting crucible. This rotating magnetic field directly acts on the stationary metal ingot, causing it to generate induced eddy currents and self-heat, melting it. Through the synergistic effect of the hollow motor and the low-temperature superconducting coil, the metal ingot can complete the transformation from solid to liquid in a completely non-contact state, avoiding the impurity introduction problem caused by direct contact between electrodes, crucibles, and other components and the molten metal in traditional melting methods. This achieves clean melting of highly active, high-purity metals.

The utility model discloses an anti-dust device for mining, which relates to the technical field of mining devices and comprises an L-shaped support plate, two swing components and a power component, and the two swing components are symmetrical to each other and are connected with the upper surface of the L-shaped support plate. Through cooperative use of the swing assembly, the power assembly, the first fixing column, the lead screw and the first fixing plate, a spray head on the swing assembly can be driven by rotation of the lead screw to drive the power assembly to pull the swing assembly to adjust the angles of the rear side, the left side and the right side of the spray head; in this way, when an operator uses the device, the nozzle can be adjusted according to needs, the device can be adjusted to spray right ahead when moving forwards, and therefore the operator is prevented from staying in coal rock dust, and the actual application effect of the device is improved.

The utility model provides an anti -explosion safety type motor belongs to motor field, including shell, motor stator, motor rotor and pivot, motor stator, motor rotor and pivot are in order to be installed in the inside of shell, the one side of shell is provided with the heat dissipation explosion -proof mechanism for conducting and discharging heat, the one side of shell is provided with the wire harness assembly that separates the cable of shell inside. The utility model discloses the heat dissipation explosion -proof mechanism that sets up, realized the effect that the heat that produced in the inside of shell is conducted and blows away, when using, motor stator generates magnetic force, and then produces rotating magnetic field, makes motor rotor and pivot rotate, and the one end of the pivot at the front end cover when rotating can drive external equipment to rotate, and the one end at the rear end cover will drive the rotation of the fan blade, and the heat in the inside of shell is blown out of the shell through the dust cover, reduces the heat in the inside of shell, prevents the heat combustion.