Apparatus with two anchors

An apparatus with two anchors, comprising:

• a housing, comprising:
• at least one first expansion unit;
• at least one second expansion unit, comprising:
• at least one stopping structure;
• and
• a linkage connected to the at least one first expansion unit and the at least one second expansion unit, comprising:
• at least one anti-rotation structure;
• a movable element, comprising:
• a first threaded unit disposed at a side of the movable element;
• at least one alignment structure;
• at least one space;
• at least two slots;
• and
• a rotary element, comprising:
• a second threaded unit disposed at a side of the rotary element;
• and
• at least one second alignment structure disposed at another side of the rotary element;
• wherein when the first threaded unit and the second threaded unit enter the housing and are coupled along an axis, the at least one first alignment structure and the at least one anti-rotation structure are coupled, and the at least one second alignment structure is coupled with the at least one stopping structure, the at least one space and the at least two slots open through the movable element, the at least two slots are disposed at two sides of the at least one space, and the at least two slots are communicated with the at least one space.

An apparatus with two anchors suitable for detecting a physical quantity, comprising:

• a housing, comprising:
• at least one first expansion unit;
• at least one second expansion unit, comprising:
• at least one stopping structure;
• and
• a linkage connected to the at least one first expansion unit and the at least one second expansion unit, comprising:
• at least one anti-rotation structure;
• a movable element, comprising:
• a first threaded unit disposed at a side of the movable element;
• at least one first alignment structure;
• at least one space;
• at least two slots;
• and
• a rotary element, comprising:
• a second threaded unit disposed at a side of the rotary element;
• at least one second alignment structure disposed at another side of the rotary element;
• and
• a rotary pressing unit disposed between the second threaded unit and the at least one second alignment structure;
• wherein when the first threaded unit and the second threaded unit enter the housing and are coupled along an axis, the at least one first alignment structure and the at least one anti-rotation structure are coupled and the at least one second alignment structure and the at least one stopping structure are coupled, the at least one space and the at least two slots open through the movable element, the at least two slots are disposed at two sides of the at least one space, and the at least two slots are communicated with the at least one space.