7results about How to "Quick pull" patented technology

The utility model relates to a kind of exhaust plug structure of anti-blocking anti-falling, comprising: support body, for being set in the step hole of mould, and with the exhaust passage being formed between step hole inner wall;Support body one end is equipped with first connecting part and recess, recess is communicated with exhaust passage;Step hole, it is set on the upper portion of gas plug hole, and with gas plug hole communication;Gas plug hole, with mould cavity communication;Gas plug, including axial connection section, neck section and plug body section in sequence, connection section is used for and first connecting part detachably connected;Plug body section is used for with the clearance fit of gas plug hole, and the exhaust groove for being communicated with cavity is equipped on plug body section;The clearance between neck section and gas plug hole inner wall is formed, it is used for the communication exhaust groove and recess;Groove part is equipped on the end surface for being communicated with cavity of plug body section, for with installation tool cooperation.The utility model improves gas plug structure and then makes gas plug installation process be improved, can effectively prevent gas plug blockage and drop off.

The application discloses a depth-adjustable soil sampler, which comprises a sampling frame, bottom plates fixed on both sides of the sampling frame, and plug rods connected with the two bottom plates; when sampling, the sampling frame is placed at a sampling position, the plug rods are inserted into the soil, the sampling frame is fixed, and the soil is sampled; when the sampling is completed, a person steps on a pedal, the pedal is driven to rotate downward, the rotation of the pedal drives the rotation of a rotating shaft, the rotation of the rotating shaft drives the upward rotation of a rotating rod, the rotating rod drives the upward rotation of a baffle, the baffle impacts a moving plate during the rotation, the moving plate is driven to move upward, the moving plate drives the upward movement of the plug rods, and the automatic resetting of the pedal after each time of stepping is realized by the arrangement of a reset component, the next time of stepping on the pedal is facilitated, the plug rods can be pulled out under the repeated stepping on the pedal, the plug rods can be quickly pulled out, the use of the sampler is facilitated, and the use efficiency of the sampler is improved.

This utility model discloses a combined nail remover for windproof nails, belonging to the technical field of auxiliary devices for road and bridge construction safety warnings. It includes a safety cone nailed to the ground; a flat pad is placed on the ground near the safety cone; a support block is placed on the flat pad; a lever is rotatably mounted on the top of the support block; a connector is placed on the lever; a pressure-bearing clamp is placed at the connector; a limit groove is formed on the pressure-bearing clamp; the head of the windproof nail can be engaged with the pressure-bearing clamp through the limit groove. This utility model effectively solves the current problem of difficulty in removing windproof nails from safety cones nailed to the ground, and the difficulty in reusing the safety cones.