Manual pulse generator

Abstract

The invention relates to a manual pulse generator which comprises a hand wheel, a hand wheel handle, a main body and a main shaft, wherein, the hand wheel is provided with a dial, the main shaft driven by the hand wheel is inserted in the center hole of the main body, one end of the main shaft, which is far away from the hand wheel, is fixed with a grating, a positioning device is arranged in a cavity part between the hand wheel and the main body and comprises an annular gear fixed on the main body; the main shaft in the annular gear is fixed with a turning mechanism, on which a radial hole is arranged; the radial hole is internally provided with a spring, the front end of the spring is provided with a ball bearing which is partially embedded into the tooth space of the annular gear; the hand wheel handle comprises a shell, one end of which is provided with an opening, a pinching screw and a bush, the pinching screw passes through the bush to be connected on the hand wheel by screw thread, the connection part by the screw thread is coated with industrial gum; clearance fit is formed between the pinching screw and the inner ring of the bush, and the outer ring of the bush is tightly fitted with the inner ring of the shell, therefore, the shape is beautiful and the service life is prolonged.

Description

technical field [0001] The invention relates to a manual pulse generator. Background technique [0002] At present, there are many kinds of pulse generators on the market, and the application range of the pulse generator is also very wide. However, the inner core screw of the hand wheel handle of the existing pulse generator leaks outside, which is easy for people to see and affects the overall The structure is beautiful, especially the fine-tuning gear of the hand wheel has always been the combination of the old traditional external gear and the spring leaf. After long-term use, the structural problem of the spring leaf cannot be restored to the position required by the original design, thus shortening the life of the machine, especially The existing technology cannot perform aluminum oxidation treatment on the appearance base, but can only be painted, and the quality problem has not been resolved. Contents of the invention [0003] The technical problem to be solved by ...

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Problems solved by technology

[0002] At present, there are many kinds of pulse generators on the market, and the application range of the pulse generator is also very wide. However, the inner core screw of the hand wheel handle of the existing pulse generator leaks outside, which is easy for people to see and affects the overall The structure is beautiful, especially the fine-tuning gear of the hand wheel has always been the combination of the old traditional external gear and the spring leaf. After long-term use, the structural problem of the spring leaf cannot be restored to the position required by the original design, thus shortening the life of the machine, especially Existing technology cannot perform aluminum oxidation treatment on the appearance base, but can only be painted, and the quality problem has not been solved

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