CN2177105Y

CN2177105Y - Foot pedal pump

Info

Publication number: CN2177105Y
Application number: CN 92241306
Authority: CN
Inventors: 戴江
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-19
Filing date: 1992-11-19
Publication date: 1994-09-14
Anticipated expiration: 2002-11-19

Abstract

The utility model provides a foot pedal pump. The utility model is characterized in that check valves are arranged at the inlet and the outlet of the pump in a consequent direction, and the utility model has suction and compression two functions. The outlet is connected with a sprinkler head for shower, the inlet is connected with warm water, and the utility model can be used as a simple shower. When the outlet is connected with an inflation rubber pipe, the utility model can be used as a pedal inflator. The utility model has the advantages of low cost, and convenient operation.

Description

Foot pedal pump

The utility model belongs to the pump class

Up to now, the kind of pump is a lot, is respectively applied for different purposes, in daily life, existing a kind of Pedal inflator listing, as shown in Figure 5, but the inflator of its principle, structure and hand does not have any difference, just replaced hand, the inflator piston has been moved up and down, in cylinder barrel because it does not possess " suction " function with foot-operated, so can only be used for the force feed air, as inflating, can not be used for pumping liquid, thereby limit its application area to bicycle.

In the daily life, people wish to have a kind of easy foot pump, be used for aspects such as shower or pump easily, a kind of vacuum dehydration shower is arranged at present on the market, with reference to the accompanying drawings 6, its principle is that the cold water high speed flow is crossed the T-shape section, form negative pressure herein following hot water is drunk up, become warm water, spray through shower head with cold water mix, take a shower, its advantage is to need not combustion gas, power consumption, energy-saving benefit is obvious, and is in addition, simple, cheaply, be popular, but shortcoming is that down very high not the doing a good job of hot water temperature in the surface vessel scalded the people easily, and dangerous, bathing temperature in addition also is difficult for adjusting, particularly when suction sleeve leaves hot water accidentally, will splashing the head with cold water.

The purpose of this utility model just is the above-mentioned deficiency at Pedal inflator and vacuum dehydration shower device, make improvements, a kind of new foot pump is provided, make it possess " suction " and " compression " two functions simultaneously, and can force feed gas, as be used for inflating to bicycle, again can pumping liquid, be pressed onto eminence again as the warm water in the container is drunk up,, be used to take a shower through the shower head ejection.

In order to achieve the above object, the utility model---foot pump comprises cylinder barrel, piston, piston recovers spring, the cylinder barrel inlet, outlet is characterized in that, in the inlet outlet, respectively adorn a check valve, two check valves are pressed the mobile forward arrangement of fluid, and check valve is one-way valve just, the check valve of ingress can only advance fluid can not to go out, and the check valve in outlet port can only go out fluid can not to advance.

Concrete working condition is as follows, is example with pump water, and (with reference to figure 2) water pipe inserts in the water, when depressing pedal, piston moves downward, and the outlet check valve is opened, the inlet check valve is closed, and discharges the air in the cylinder barrel earlier, then lifts pin, piston leans on the rebound effect of spring and moves upward, and forms negative pressure in the cylinder barrel, and the outlet check valve is closed, the inlet check valve is opened, water is sucked cylinder barrel, and when depressing pedal again, piston moves downward, hydraulic pressure raises in the cylinder barrel, the contrary last valve of inlet cuts out, and stops high pressure water to reflux, and the outlet check valve is opened, high pressure water is extruded, so constantly foot pedals moves in circles, and has realized " suction " and " compression " two kinds of functions.

The simple declaration of accompanying drawing and accompanying drawing

Fig. 1 is the foot pump generalized section

Wherein 1 is cylinder barrel, and 2 is spring, and 3 is pedal, and 4 is piston, and 5 are the outlet check valve, and 6 are the inlet check valve.

Fig. 2 is foot-operated Pump shower schematic representation, and wherein 1 is cylinder barrel, and 2 is spring, and 3 is pedal, and 4 is piston, 5 are the outlet check valve, and 6 are the inlet check valve, and 7 is water inlet pipe, and 8 is sucker, and 9 is warm water container, 10 is outlet pipe, and 11 is water tank, and 12 is shower switch, and 13 is shower head

Fig. 3 is a foot pump formula inflator

Only at the utility model---load onto inflation sebific duct 14 on the foot-operated delivery side of pump check valve and get final product, Fig. 4 be the check valve schematic representation, and 41 is valve cylinder, and 42 is spheroid, and 43 have Pedal inflator for end cap Fig. 5

1 is cylinder barrel, and 2 is spring, 3 pedals, and 4 is piston, and 5 ' is outlet, and 10 ' is sebific duct such as accompanying drawing

Fig. 6 is existing vacuum dehydration shower

Wherein 20 is hot water, and 21 is the T-shape pipe, and 22 is cold water pipe, 23 cold water, and 24 is shower nozzle

Embodiment

The pump housing is by the engineering plastics moulding by casting, and suitable for reading and two inlet/outlet have processing such as a small amount of tapping in totally three places at cylinder barrel.Piston is selected the leather cup and the matching component of common inflator for use, so that reduce processing and make things convenient for user oneself to change.Foot treadle and piston rod all are that engineering plastics are made, scyewed joint, and tower recovers spring can select standard piece for use, wire spring, inlet union is made curved, and outlet connection is made straight type, by the engineering plastics moulding by casting, its effect one is to connect the inlet/outlet flexible pipe, the 2nd, and the fixing check valve of importing and exporting.

Check valve is a key problem in technology of the present utility model, use in the present embodiment as shown in Figure 4, it is assembled by the element of engineering plastics cast, valve cylinder 41 is cylindrical, and the entry end internal diameter shrinks gradually, and diameter is less than the spheroid 42 of valve cylinder internal diameter, cooperate tightly with valve cylinder and to seal, hole on the end cap 43 is a kind of in Any shape circular, and spheroid can not seal it, and fluid can be passed through.

Claims

1, a kind of foot pump comprises that cylinder barrel, piston, piston recover spring, and cylinder barrel inlet, outlet is characterized in that at inlet/outlet, each installs a check valve, and two check valves are by forward arranging.

2, the foot pump of putting down in writing according to claim 1 is characterized in that, said check valve, valve cylinder is cylindrical, through shrinking gradually, cooperates tightly in its entry end, have a kind of outlet of the Any shape except that circle on the end cap 43 with diameter in the valve cylinder spheroid less than internal diameter;

3, according to the foot pump of claim 1 record, it is characterized in that said outlet is connected to shower nozzle

4, according to the foot pump of claim 1 record, it is characterized in that said outlet is connected to the inflation sebific duct.