CN2608719Y

CN2608719Y - Pedal multipurpose pump

Info

Publication number: CN2608719Y
Application number: CN 02270686
Authority: CN
Inventors: 刘德宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-11
Filing date: 2002-11-11
Publication date: 2004-03-31
Anticipated expiration: 2012-11-11

Abstract

The utility model discloses a pedal multitarget pump that can suck or discharge liquid media and gas media. The front end of the pump body is connected with the seat by screw. The vertical direction of the seat is connected with the gas valve by screw and the horizontal direction is connected with the gas outlet valve by screw. The inlet and the outlet gas valves have the same structure and have single function. The suck and discharge media are positioned in front of the piston, the rear cover and circumferential plane of the pump body is sealed with tape. The pump body and the head face of the rear cover are sealed with flat rubber pad. The rear cover and the piston are sealed with a guide sleeve that is filled with fillings. The utility model has the advantages of labor saving, large pressure and leakage proof and can suck and discharge liquid or gas media.

Description

Foot-operated multipurposepump

Affiliated technical field:

The utility model relates to a kind of machine tool pump of man power, especially can suction liquids and gases medium, and use laborsaving, pressure foot, the foot-operated multipurposepump that does not leak.

Background technique

At present, man power pump on the market, its common principle is with artificial powered piston motion, one end sucks medium, and an end is discharged medium, and structure is loaded down with trivial details, it is poor to seal, and especially discharges medium when increasing, and returns pressure to producing in the pump housing, cause and press and more require great effort, and pressure is little, leaks easily, in addition, liquid pump and gas pump can not be general, use to be subjected to certain restriction.

Summary of the invention

In order to overcome the deficiency that liquid pump and gas pump can not be general, solve and use effort, leak, the shortcoming that pressure is little, the utility model provide a kind of foot-operated multipurposepump, and this pump can be used for the suction of liquid medium and gas medium simultaneously, use laborsaving, pressure foot, do not leak.

The technological scheme that its technical problem that solves the utility model adopts is: pump housing front end is riveted hollow attachment post, the connectivity the other end is threaded with valve seat, the valve seat substantially horizontal is threaded with gas outlet valve, the its gas discharge valve base internal taper hole is towards the pump housing, the conical plug sealing is arranged in the taper hole, rear portion be linked in sequence spring and screw, rotary screw can change the degree of tightness of spring, thereby change tapered plug to the tightness of taper hole with go out atmospheric pressure, valve seat vertically is threaded with suction valve, suction valve structure and gas outlet valve structure are identical, and be general each other, just changes installation direction.

Because due to the inlet and outlet valve inner cone pass shape structure, tapered plug can only individual sport, thereby has the individual event function, and the inlet and outlet body must not return through tapered plug, thereby solved the discharge medium pressure phenomenon is appearred returning in medium in the pump housing, so, use laborsaving.Malleation is big more, and the suction valve sealing is good more, and negative pressure is big more, and the gas outlet valve sealing is good more, thereby has overcome leakage, the shortcoming of underpressure.

The pump housing and bonnet circumferential surface adopt rubber belt sealing, hold and the sealing of employing plain cushion, adopt filling material sealing in the guide pin bushing between bonnet and the piston rod, the rear end of conducting sleeve nut compresses, guide pin bushing is riveted on the bonnet, has solved the one end air inlet of market pump like this, and one brings out gas, the rear portion is the structure of gas leakage easily, and is air tight when also having guaranteed piston rod movement.Because intake and exhaust are all in the piston front, thus practical equally to the suction of liquid medium, better effects if, thus reach the general purpose of liquids and gases medium suction.

The beneficial effects of the utility model are, use laborsavingly, and the pressure foot does not leak, and can inhale, exhaust body and liquid medium.

Fig. 2, be foot-operated multipurposepump embodiment's appearance figure.

1. rocking arms among the figure, 2. butterfly spring, the 3. pump housing, 4. attachment post, 5. sealing gasket, 6. valve seat, 7. inlet valve seat, 8. gas outlet valve sealing gasket, 9. gas outlet valve valve body, 10. spring, 11. screw, 12. steam outlet pipes, 13. gas outlet valve conical plug, 14. suction valve screws, 15. springs, 16. conical plug, 17. sealing gaskets, 18. air input joints, 19. suction tude, 20. sealant tapes, 21. piston rod assembly, 22. cushion rubbers, 23. bonnets, 24. guide pin bushings, 25. stuffing box packing, 26. rubber cushions, 27. gland nuts, 28. shells.

Embodiment

In Fig. 1; rocking arm 1 is by swing arm and decide arm and form; have straight pin to connect; butterfly spring 2 chucking rocking arm jack shafts; can set back automatically to ensure after swing arm is depressed; the pump housing 3 fronts and attachment post 4 riveted joints; attachment post 4 the other ends are threaded with valve seat 6, and intermediate seal pad 5 seals, and the valve body 9 of giving vent to anger is threaded with valve seat 6; intermediate seal pad 8 seals; the gas outlet valve internal taper hole has conical plug 13 to seal, and plays the unlatching effect, conical plug 13 back be linked in sequence spring 10 and screw 11; rotary screw 11 can change the degree of tightness of spring 10, thereby the tightness and the pump housing that can adjust conical plug 13 go out atmospheric pressure.Gas is discharged through steam outlet pipe 12.

Valve seat 6 vertically is threaded with suction valve 7, and suction valve is by valve seat 7 screws 14, spring 15, and conical plug 16, sealing gasket 17, air input joint 18, suction tude 19 is formed, and structure and effect and gas outlet valve are identical, and be general each other.

Because due to the air valve shape and structure, tapered plug 13 and tapered plug 16 can only unidirectional movements, so the inlet and outlet valve has the individual event function, the inlet and outlet body has passed through tapered plug, will never return, thereby solved discharge gas to pump housing medium return the pressure phenomenon, thereby use laborsavingly, malleation is big more, suction valve tapered plug 13, it is good more to seal, and negative pressure is big more, and 16 sealings of gas outlet valve tapered plug are good more, thereby gas leakage, the shortcoming of underpressure have been solved.

After the pump housing 3 was tightened with bonnet 23, circumferential surface was locked with adhesive tape 20, sealed by the elastic force of adhesive tape 20 self, the pump housing 3 seals with flat rubber cushion 26 with bonnet 23 end faces, piston rod assembly 21 front ends adopt elastic rubber circle 22 to be locked, and to ensure wear-resisting and high elasticity, the rear end is fixed on rocking arm 1 circular shaft with nut.Bonnet 23 and guide pin bushing 24 riveted joints, interior filling material 25, the guide pin bushing the other end compresses with nut 21, and swivel nut 24 can be adjusted elasticity, and is air tight during with 21 to-and-fro motion of guarantee piston rod.By above-mentioned the sealing of several places, pump housing rear portion is thoroughly changed the air inlet of conventional pump rear end like this, the structure of giving vent to anger previously, and overcome the rear portion and occur easily returning and press and the shortcoming of gas leakage.Owing to advance, all in piston 21 fronts, suction is used too to liquid medium in exhaust, thereby reaches the purpose of this pump while suction gas and liquid medium.Shell 28 shown in Figure 2 is mainly protected the pump housings and not injured by external force into and out of air valve, also plays the decorative appearance effect simultaneously.

Claims

1, a kind of foot-operated multipurposepump, pump housing front end is riveted hollow attachment post, the attachment post the other end is threaded with valve seat, it is characterized in that: valve seat vertically is threaded with suction valve, substantially horizontal is threaded with gas outlet valve, and the pump housing and bonnet circumferential surface adopt rubber belt sealing, and end face adopts flat rubber cushion sealing, adopt filling material sealing in the guide pin bushing between bonnet and the piston rod, intake and exhaust are all in the piston front.

2, foot-operated multipurposepump according to claim 1, it is characterized in that: the inlet and outlet valve arrangement is identical, has the individual sport function, and the valve body internal taper hole has the conical plug sealing, be linked in sequence spring, screw, full circle tapered plug tightness that rotary screw is adjustable and inlet and outlet pressure.

3, foot-operated multipurposepump according to claim 1 is characterized in that the riveted joint of bonnet and guide pin bushing, and the dress stuffing box packing compresses with nut in the guide pin bushing, and swivel nut can be adjusted the sealing elasticity.

4, foot-operated multipurposepump according to claim 1 is characterized in that the pump housing and bonnet circumferential surface adopt adhesive tape to be connected, and pump housing end face and bonnet end face adopt flat rubber cushion to compress sealing.