Mechanical lifting device for construction

Abstract

The invention discloses a construction machinery lifting device, which comprises a base, rollers are installed on the left and right sides of the bottom of the base, guide columns are installed on the left and right sides of the top of the base, and the center of the top of the base is installed There is a gear box, a screw is installed on the top of the second bevel gear, an inner cylinder is sleeved on the outer wall of the screw, a nut is installed on the bottom of the inner wall of the inner cylinder, and a platform is installed on the top of the inner cylinder, A block is installed on the left end of the bolt, and a guardrail cross bar is installed on the inner side of the guardrail column. The construction machinery lifting device, through the cooperation of the screw, the inner cylinder and the block, the roller can roll, which is convenient for the lifting device to move. The inner cylinder drives the platform to move upward. The lifting of the platform does not need to be connected to the power supply. The moving bolt makes the block enter the slot to prevent the platform from sliding down. The protection device can ensure the safety and meet the needs of users.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a construction machinery lifting device. Background technique [0002] Elevating platform is a kind of hoisting machinery that transports people or objects vertically. It also refers to the equipment for vertical transportation in logistics systems such as factories and automatic warehouses. The lifting platform is often equipped with various plane conveying equipment as different height conveyor lines. The connecting device is generally driven by hydraulic pressure, so it is called hydraulic lifting platform. In addition to being used for cargo transportation at different heights, it is widely used in high-altitude installation, maintenance and other operations. In the field of construction, it is often necessary to work at high altitudes. The risk is relatively high and it is extremely inconvenient. In this way, an aerial work platform needs to be used. In the pr...

AI Technical Summary

Problems solved by technology

[0002] Elevating platform is a kind of hoisting machinery that transports people or objects vertically. It also refers to the equipment for vertical transportation in logistics systems such as factories and automatic warehouses. The lifting platform is often equipped with various plane conveying equipment as different height conveyor lines. The connecting device is generally driven by hydraulic pressure, so it is called hydraulic lifting platform. In addition to being used for cargo transportation at different heights, it is widely used in high-altitude installation, maintenance and other operations. In the field of construction, it is often necessary to work at high altitudes. The risk is relatively high and it is extremely inconvenient. In this way, an aerial work platform needs to be used. In the prior art, the construction machinery lifting device includes a housing, and the inner walls on both sides of the housing are provided with lifting racks. There is a lifting device inside, the top of the lifting device is equipped with a working platform, the bottom of the lifting device is equipped with a lifting motor on both sides, the lifting motor is equipped with a transmission gear, and the bottom of the side wall of the lifting device is symmetrically equipped with two lifting gears. A driven gear is arranged side by side on the lifting gear, and the driven gear and the lifting gear are coaxially fixedly arranged. The driven gear and the transmission gear are connected through a transmission chain. The shock device, the upper surface of the shock absorber is provided with a second magnet. Although the construction machinery lifting device has a simple structure, it is inconvenient to move and needs to be connected to a power supply. It cannot be used in places without power supply, and the protective device cannot guarantee safety , cannot meet the needs of users

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