Knob structure and follow-focus remote controller using the knob structure

Abstract

A knob structure (100), comprising a fixed piece (12), a rotational piece (32) rotatably disposed on the fixed piece (12), and at least one movable piece (34) movably disposed between the fixed piece (12) and the rotational piece (32). The fixed piece (12) comprises a socket portion (121), the rotational piece (32) being disposed on the socket portion (121). First damping grease is provided between the at least one movable piece (34) and the fixed piece (12), second damping grease is provided between the at least one movable piece and the rotational piece (32), and the damping magnitudes of the first damping grease and the second damping grease are different. Also provided is a follow-focus remote controller (200) using the knob structure (100). A rotation damping regulation range of the knob structure (100) is relatively large.

Description

technical field

[0001] The invention relates to a knob structure, in particular to a hard disk knob structure for fixing a hard disk and a follow-focus remote controller using the knob structure. Background technique

[0002] The traditional follow-focus remote control uses a knob structure to remotely control the focus of the shooting device. Usually, the knob structure includes a rotating part and a fixed part that can rotate relative to each other, and damping grease arranged between the rotating part and the fixed part. The rotating member is made of elastic material such as plastic or rubber, and the fixing member is made of metal. By adjusting the pressing force of the rotating member and the fixing member on the damping grease, the rotating member can be adjusted and the rotation resistance between the fixed part, so that the rotation between the rotating part and the fixed part is relatively smooth. However, due to the small contact area between the rotating member...

Examples

Embodiment Construction

[0109] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0110] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or t...

technical field

[0001] The invention relates to a knob structure, in particular to a hard disk knob structure for fixing a hard disk and a follow-focus remote controller using the knob structure. Background technique

[0002] The traditional follow-focus remote control uses a knob structure to remotely control the focus of the shooting device. Usually, the knob structure includes a rotating part and a fixed part that can rotate relative to each other, and damping grease arranged between the rotating part and the fixed part. The rotating member is made of elastic material such as plastic or rubber, and the fixing member is made of metal. By adjusting the pressing force of the rotating member and the fixing member on the damping grease, the rotating member can be adjusted and the rotation resistance between the fixed part, so that the rotation between the rotating part and the fixed part is relatively smooth. However, due to the small contact area between the rotating member...

Examples

Embodiment Construction

[0109] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0110] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or t...

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