Leg-height-adjustable compasses
A compass, length technology, applied in the field of office supplies, can solve problems such as difficult operation, uneven force, crooked drawing, etc., and achieve the effect of convenient operation
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[0016] Such as figure 1 As shown, the long and short compass of the present embodiment comprises a compass head 1, a fixed foot 2 and a rotating foot 3, one end of the fixed foot 2 is fixed on the compass head 1, and one end of the rotating foot 3 is hinged on the compass head 1, and the fixed foot 2 is retractable and is provided with a limit device, the other end of the rotating foot 3 is provided with a lead core 31, and the other end of the fixed foot 2 is provided with a rubber pad 22, and the rubber pad 22 is rotatably connected with the fixed foot 2.
[0017] The fixed foot 2 is divided into two parts, an upper part and a lower part, the upper part is hollow, one end of the lower part is inserted in the upper part, and a stop nut 21 is provided at the lower end of the upper part. The other end of the rotating foot 3 is provided with a clamp, one side of the clamp is provided with a clamping nut 32, and the lead core 31 is clamped on the clamp. The compass head 1 and t...
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