Abstract: A pressing pump includes a pump case, a piston, a pump rod, and a pressing sleeve, where a pumping cavity is formed within the pump case; the piston is arranged within the pumping cavity and connected to the piston on an inner wall of the pumping cavity; a first end of the pump rod is connected to the piston; the pressing sleeve is sleeved on an outer circumference of a second end of the pump rod; a gap is formed between the pressing sleeve and the pump rod; and an inner circumference of the pressing sleeve and an outer circumference of the pump rod are clamped with each other to realize two-way motion limitation in a length direction of the pump rod. The pressing pump can maintain stable and smooth operation of the piston in the pressing process of the pressing pump.

Abstract: A vacuum bottle with a rotary telescopic pressing head comprising a bottle body, wherein an inner container is disposed in the bottle body, a piston is disposed in the inner container, a pump sleeve is disposed on the inner container, and an eccentric hole is formed in the pump sleeve; a pressing pump is disposed in the eccentric hole, and a rotary sleeve is disposed on the pump sleeve; a rotary sleeve through-hole is formed in the rotary sleeve, and the pressing pump is located in the rotary sleeve through-hole; an inner pressing head is disposed on the pressing pump, and the inner pressing head can rotate horizontally; an outer pressing head is disposed on the inner pressing head; an inner cover is disposed on the rotary sleeve, and an outer cover is sleeved on the inner cover.