Gravel screening device for building

Abstract

The invention relates to the technical field of building production, and discloses a gravel screening device for building. The gravel screening device for building comprises supporting seats, wherein two groups of the supporting seats are arranged, and filter screens are fixedly installed at the sides, close to each other, of the two sets of supporting seats. According to the invention, when a sliding block moves to the left end of a sliding groove, the sliding block is limited by the sliding groove to stop movement, at the moment, a swing block continues to rotate clockwise, a shifting block drives a rotating block to move on a fixed column, the bottom end of the shifting block is lifted, the shifting block crosses the upper end of a shovel along with clockwise movement of the swing block, and at the moment, a spring is pulled to contract to drive the moving block to move in a fixed block; when the moving block drives the shovel to move, the right side of the shovel drives gravels at the bottom sides in the supporting seats to move, the right side of the shovel enables the large-particle gravels to move away from the bottoms of the supporting seats along with the right side of the shovel, and the small-particle gravels fall to the upper ends of the supporting seats and are screened out from the supporting seats; and in this way, through continuous circulation, the small-particle gravels are screened from the supporting seats.

Description

technical field [0001] The invention relates to the technical field of construction production, in particular to a construction sand screening device. Background technique [0002] Architecture is a space for people to live and use composed of building materials such as mud, bricks, tiles, stones, wood, modern reinforced concrete and profiles, such as houses, bridges, factories, gymnasiums, cave dwellings, water towers and temples, etc. etc. In a broad sense, landscape and gardens are also part of the building. Sand and gravel refer to the loose mixture of sand grains and crushed stones. Different sand and gravel structures are quite different. The roundness of debris is very good. Some of the debris in sand and gravel have sharp edges and corners. Sand and gravel are loose objects, but their particles are generally hard and chemically stable in the surface environment. On construction sites, it is often necessary to use When it comes to sand and gravel, since the particle ...

AI Technical Summary

Problems solved by technology

[0003] The current screening machine makes the sand flow down by continuously vibrating the screen, but after a period of vibration, the large particles of sand will fall on the upper end of the screen with the continuous shaking of the screen, and then continue to shake When sieving the screen, due to the heavy weight of large particles of sand and gravel, it will always be blocked on the screen, which will affect the efficiency of sand discharge. Therefore, we propose a sand and gravel screening device for construction

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