电教翻页笔

Reaction kettle with sampling structure

According to the reaction kettle with the sampling structure, provided by the invention, applied to the technical field of reaction kettles, when the interior of a sampling barrel is not stable, carbon dioxide between the interior of a connecting pipe and the upper end of a pushing piston is heated to expand through outward conduction of heat and internal high pressure, and the pushing piston is pushed to move downwards; when the lower end of a piston is pushed to move downwards to the lower side of the lower end of the outer side of a control cavity, a sliding buckle barrel is pushed to move towards the inner side and is clamped with an outer limiting opening, so that the whole bottom control mechanism and the whole built-in mechanism are locked, and a high-pressure environment in a sampling barrel pushes a pressure sliding plug to move downwards; further, a clamping lock rod is pushed to move towards the outer side by rotating a push rod, so that the clamping lock rod is clamped with ...

DEVICE UTILIZING NATURAL VIBRATION FREQUENCY OF CEMENT-BASED MATERIAL TO DETECT SETTING TIME THEREOF

A device utilizing the natural frequency of a cement-based material to detect setting time thereof, comprising a test mode (7). An initial setting matrix test piece (6) to be tested is installed inside the test mode (7); a vibration sensor (1) is provided at the top centre of the initial setting matrix test piece (6); a tailcone of the vibration sensor (1) is fixed inside the initial setting matrix test piece (6); the vibration sensor (1) is connected to a vibration data collection device (3); a vibration exciter (2) is provided above an edge of the initial setting matrix test piece (6); the vibration exciter (2) is connected to an FPGA module (4) for controlling the regular vibration excitation thereof; and the vibration data collection device (3) and the FPGA module (4) are respectively connected to an industrial personal computer (5).

Kitchen range hood with built-in oil stain collecting structure

The invention discloses a kitchen range hood with a built-in oil stain collecting structure, which is applied to the field of range hoods, and is characterized in that a built-in oil box is additionally arranged on the basis of an existing range hood to receive oil, and a grip is slidably pushed outside to drive an oil scraping plate to move up and down so as to scrape and clean oil drops on the inner side of a screen plate; the overall attractiveness of the range hood body is kept, and the interior can be cleaned through simple sliding action, so that the trouble that the interior is cleaned by frequently detaching the screen plate is effectively solved; after the oil box absorbs oil to be saturated, an ejector rod is pushed outwards to prompt the oil sealing cover by utilizing the oil absorption expansion characteristic of a macromolecular oil absorption expansion rubber pad, so that people are reminded that the oil box needs to be cleaned in time, the trouble of inconvenience in cleaning ...

Method, device and equipment for generating travelable area of vehicle and medium

The invention provides a generation method and device of a vehicle drivable area, equipment and a medium, and relates to the technical field of vehicles. The method comprises the following steps: acquiring an initial drivable area of a to-be-planned vehicle; obtaining at least one initial obstacle area of the to-be-planned vehicle; in the at least one initial obstacle area, any two adjacent initial obstacle areas with the obstacle distance not meeting the preset vehicle passing condition are communicated, and at least one target obstacle area is obtained; and determining a target drivable area of the to-be-planned vehicle based on the initial drivable area and the at least one target obstacle area. Through the technical scheme provided by the embodiment of the invention, the driving safety of the vehicle can be improved.

Hydraulic forging equipment

According to the hydraulic forging equipment in the field of forging equipment, through the forging base provided with the forging groove and the upper movable cover matched with the forging base and slidably connected with the forging piston head in a sleeving mode, the forging space is in a closed state during forging, and chippings are prevented from splashing; a part and forging are flushed in a closed state through a liquid pumping piston cylinder linked with a forging piston head, residual chippings are efficiently flushed and collected, the chippings are prevented from influencing the quality of next forging hammering, and the quality of forging hammering is improved through a limiting spring installed in an upper movable cover and a rack frame linked with the forging piston head. And it is guaranteed that the upper movable cover keeps making contact with the forging base in the preliminary upward moving process of the forging piston head, the sealing environment is guaranteed, filtering ...