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Locking device for rotary arm of radiographic system

A technology of locking device and rotating arm, which is applied in the fields of radiological diagnostic instruments, medical science, diagnosis, etc., can solve the problems of indexing locking and rotating arm locking mechanism, and achieves the reduction of locking indexing angle and compact structure , the effect of convenient operation

Inactive Publication Date: 2011-11-09
SHENZHEN LANDWIND IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a locking device for the rotating arm of the radiographic system, which overcomes that the locking mechanism of the rotating arm of the full manual straight arm radiographic system and the full manual U-shaped arm radiographic system cannot be locked at any angle. Defects

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  • Locking device for rotary arm of radiographic system
  • Locking device for rotary arm of radiographic system
  • Locking device for rotary arm of radiographic system

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Embodiment Construction

[0019] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0020] Such as figure 2 , image 3 and Figure 4 As shown, the rotary arm locking device of the radiographic system of the present invention includes a rotary arm shaft 11 that drives the rotary arm of the radiographic system to rotate, and also includes a first gear 8 that is fixedly sleeved on the rotary arm shaft 11, and a gear that meshes with the first gear 8. The second gear 9 and the permanent magnet jaw brake 10, the permanent magnet jaw brake 10 is fixed on the rotating arm 2 of the radiographic system, and its rotating shaft 101 is fixedly connected with the rotating shaft 12 of the second gear. The rotating arm 2 is set as a straight arm or a U-shaped arm.

[0021] The permanent magnet jaw brake 10 is mainly composed of a permanent magnet 104 (with a tooth profile 107 on the end surface) and a movable body 103 (with a tooth profile 106 on th...

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Abstract

The invention discloses a locking device for a rotary arm of a radiographic system, which comprises a rotary arm rotating shaft driving the rotary arm of the radiographic system to rotate, a first gear, a second gear meshed with the first gear and a permanent magnetic jaw brake internally provided with a spring, wherein the first gear internally provided with the spring is fixed on the rotary arm of the radiographic system, the rotating shaft thereof is fixedly connected to that of the second gear. In the locking device for the rotary arm of the radiographic system, the permanent magnetic jaw brake internally provided with the spring and a planetary gear structure are used to lock the rotary arm of the radiographic system. Compared with the traditional friction braking structure, the locking device has the advantages of greatly improving the braking torque and having a compact structure. The locking device for the rotary arm of the radiographic system of the invention greatly reduces the indexing angle for locking the rotary arm of the radiographic system, allows the rotary arm of the radiographic system to stay at any angular position and is extremely convenient to operate.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a locking device for a rotary arm of a radiographic system. Background technique [0002] There are many forms of structure in the radiographic system. In China, there are two common types: U-shaped arm structure and suspension frame structure. In recent years, with the introduction of major national policies, the reform of primary medical care is imperative. Therefore, a simpler and more economical radiographic system is derived on the basis of the above two structures. One of the fully manual straight arm radiography systems derived from the U-arm, such as figure 1 As shown, the whole system is mainly composed of the above seven parts: the lifting cylinder 4 is installed on the column 7 through a wire rope or a synchronous belt, and can move up and down on the column 7; the rotating shaft 3 is installed and fixed on the lifting cylinder 4, so that its On the one han...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/00
Inventor 段传林王政钧
Owner SHENZHEN LANDWIND IND
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