Tensioning device

A technology of tensioning device and casing, applied in the direction of hoisting device, portable lifting device, etc., can solve the problems of unsafe and reliable operation, inconvenient high-altitude operation, large ratchet load, etc., to achieve convenient high-altitude operation, simple and convenient operation, and improved effect of life

Pending Publication Date: 2019-01-04
上海沃恒机械设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a tensioning device to solve the problems in the prior art that the ratchet load is large, the operation is not safe and reliable, the operation is complicated, and it is inconvenient to work at heights

Method used

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Embodiment Construction

[0027] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical The orientations or positional relationships indicated by "straight", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should ...

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Abstract

The invention relates to the technical field of traction devices, in particular to a tensioning device. The tensioning device comprises an operating handle assembly, a gear shaft, a fixed pulley housing, a main ratchet wheel, a friction plate, a limiting pawl, a drive gear, a driving sprocket and a movable pulley housing. The operating handle assembly drives the gear shaft to rotate; the gear shaft rotates and drives the main ratchet wheel to rotate and drives the driving sprocket through the drive gear; and a chain moves between the driving sprocket and a driven sprocket, thereby changing thedistance between the movable pulley housing and the fixed pulley housing. The friction plate is arranged on the lateral side of the main ratchet wheel, and under the pressing force of the operating handle assembly, the friction plate stops the main ratchet wheel, thereby reducing the load of the main ratchet wheel and prolonging the life of the main ratchet wheel. The tensioning device has the advantages that the operation of tension stringing is safe and reliable; the driving sprocket and the driven sprocket adopt the principle of fixed pulleys and movable pulleys and more effort is saved; the operating handle assembly drives the gear shaft and the operation is simple and convenient; and by adoption of the structure and transmission mode of the tensioning device, working at height is convenient to carry out.

Description

technical field [0001] The invention relates to the technical field of traction equipment, in particular to a tensioning device. Background technique [0002] At present, tensioning devices are commonly used in the traction and movement of objects, such as lever blocks, which are mainly used for tensioning various cables such as electric wires and overhead lines, traction, moving equipment and other heavy objects, and fixing large Equipment and other goods. The lever hoist can be used for lifting, pulling, lowering, calibrating and other operations. [0003] However, the shells of existing lever hoists are mostly steel parts, which are relatively heavy; as disclosed in the patent application of CN105905822A, the structure adopts a single sprocket structure, which has limited load-carrying capacity, labor-saving, and unreliable structural operation; some tensioning devices use ratchets The structure, the stop method of the whole machine is a ratchet, the load of the ratchet...

Claims

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Application Information

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IPC IPC(8): B66D3/16B66D5/06
CPCB66D3/16B66D5/06B66D2700/03B66D2700/0183B66D2700/0116
Inventor 于勇黄桂宏全伟
Owner 上海沃恒机械设备有限公司
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