Which is easier to use, the pedal pump or the hand pump?

Abstract: Pumps can be divided into manual pumps, pedal pumps and electric pumps. Pedal pump is more labor-saving, and hand pump can dry water better. Comparatively speaking, the pedal pump is better, with high rotation speed and high dehydration efficiency, while the hand-driven pump can't reach the drying speed, so it retracts with a little force. So how to use the pedal pump? Let's take a look at the use of several mainstream foot pumps. 1. Which is better, the foot pump or the hand pump?

Better step on the pump. Pedal pump is more labor-saving, and T-type pedal pump is ergonomic and not as tired as hand pump.

There is a gap between the piston of the pump and the cylinder wall, and there is a downward concave rubber bowl on the piston. When the piston is pulled up, the air volume under the piston increases and the pressure decreases, and the air above the piston is squeezed from around the rubber bowl. When the piston presses down, the volume of air below the piston decreases and the pressure increases, so that the rubber bowl abuts against the cylinder wall to prevent air from leaking from above the piston, and the piston keeps pressing down. When the air pressure is enough to push open the valve core of the tire, compressed air enters the tire, and air outside the cylinder enters above the piston from the gap at the upper end of the cylinder.

Second, how to use the pedal pump

(A) the traditional vertical pump

The traditional vertical pedal pump is the most common pump, which has the effect of rapid inflation and is relatively easy and labor-saving. Almost all the previous 28 big bars used this pump.

The use method of the pump is as follows:

1. The head of the tracheal clamp needs to be inserted into the inflation interface.

2. Step on the bottom pedal, manually insert the air compressor rod up and down, and start to inject air pressure.

(2) Vertical barometer inflator

The invention adds the barometer on the basis of the traditional vertical inflator, which not only has the advantages of being easy and labor-saving in the traditional vertical inflator system, but also can display the tire pressure in real time.

The use method of the pump is as follows:

1. The head of the tracheal clamp needs to be inserted into the inflation interface.

2. Step on the bottom pedal, manually insert the air compressor rod up and down, and start to inject air pressure.

3. Observe whether the barometer reaches your expected air pressure.

(3) Pedal pump

Pedal pump changes the inflation pressure point of the pump from hand pressure to foot pressure. This pump also has a barometer, which has the same effect as vertical pumping. In the design, some use single cylinder, and some use cylinder. In fact, the principle is the same, but the expansion efficiency is different.

The use method of the pump is as follows:

1. The head of the tracheal clamp needs to be inserted into the inflation interface.

2. Step on the air pressure plate and start to inject air pressure.

3. Observe whether the barometer reaches your expected air pressure.

(4) Vacuum tire pump

Vacuum tire pump is a special pump for vacuum tire bicycles, but now many vacuum pumps can also be used for ordinary inner tube bicycles. A vacuum tire has no inner tube. When it encounters a puncture, it is immediately repaired by the tire liquid inside the tire, and it does not need to be taken out to repair like the inner and outer tires.

The use method of the pump is as follows:

1. The head of the tracheal clamp needs to be inserted into the inflation interface.

2. Step on the bottom pedal, manually insert the air compressor rod up and down, and start to inject air pressure.

Different from the traditional vertical pump, it has a vacuum filtering device.