A small hole extractor

Abstract

The invention discloses a small hole object grabbing device. Main parts comprise a connecting pipe, a pull wire, a handle, a joint, an inner sleeve, an outer sleeve, elastic fabric, a fine wire and an inner ring; the joint is used for connecting the connecting pipe with the outer sleeve; the handle comprises a thread and is mounted on the connecting pipe to form a spiral pair, the lower end of the handle is connected with the inner ring through the pull wire, and the inner ring can vertically move through the pull wire by rotating the handle; the inner sleeve is mounted in the outer sleeve through a screw, the elastic fabric is arranged on the outer wall of the inner sleeve, the fine wire is connected to the lower end of the elastic fabric in a penetrating manner, and through the handle and the inner ring, the fine wire can be tensioned and loosened; and when the sleeves cover a grabbed object, the handle is rotated, the pull wire pulls the inner ring to move upwards and tightens the fine wire, the elastic fabric is folded towards the middle along the lower end of the inner sleeve, object grabbing action is formed, an object is jacked up, object grabbing is achieved, and on the contrary, the object is abandoned. A camera and a lighting lamp are arranged in the object grabbing device, and object grabbing can be conveniently observed; and the object which has the certain volume and cannot be sucked can be flexibly grabbed from a small hole.

Description

technical field [0001] The invention discloses an object extraction tool, in particular to an object extraction tool in a small hole. Background technique [0002] In various municipal projects, maintenance of pipelines, and daily work, sometimes due to people's negligence, some valuable small objects are dropped into vertical small holes, and the dropped objects cannot be picked up directly, and tools must be used to extract items from the small holes . [0003] In order to solve this problem, a series of object fetchers have emerged on the market. At present, there are two main categories of fetchers on the market: one is to pick up objects by means of claws, that is, according to the principle of the rocker mechanism, the claws of the fetcher are closed towards the center, so as to grip objects and realize Another type of fetching device is to use the principle of suction, that is, to use a machine that can generate suction to suck objects and realize fetching. [0004...

AI Technical Summary

Problems solved by technology

[0004] Although the existing object extractor has played a certain effect when the object is extracted from a small hole, there are two situations where it is difficult to extract the object by using the existing object extractor: one is when the surface of the object is very smooth and cannot be sucked, The machine claw picker needs to exert a large clamping force to firmly clamp the object. During the pick-up process, there is a risk of dropping the object or destroying the object due to excessive clamping force, especially when the size of the object is not much different from the aperture. The operating space of the picker is severely limited, making it difficult to grab objects; second, when using the claw picker, the position of the picked object generally needs to be directly below the claw, so that the claw picker can Close the claws and grab the object, but when the object is close to the edge of the hole wall, the volume of the claw itself and the space required for expansion limit its picking action, making it difficult to align objects near the edge of the hole wall, making Objects tend to slip out of the claws during the fetching process, making it difficult to achieve the purpose of safely grabbing objects

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