CN2565552Y

CN2565552Y - Twin spring vacuum pump

Info

Publication number: CN2565552Y
Application number: CN 02272065
Authority: CN
Inventors: 林添大
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-29
Filing date: 2002-07-29
Publication date: 2003-08-13
Anticipated expiration: 2012-07-29

Abstract

The utility model relates to a double-spring vacuum pump. The utility model comprises a press head, a main post, a bottle cover, an auxiliary post, a body, a bottle body, a piston, a glide plunger, a steel ball and springs. The utility model is characterized in that the steel ball, the auxiliary post, the piston and the main post are orderly arranged in an inner cavity of the body from bottom to top; a lower spring is arranged between the auxiliary post and the lower part of the body; the piston is provided with an axial through hole; the lower end surface of the through hole is provided with a counter hole; the outer diameter of the main post is glidingly matched with the inner diameter of the axial through hole of the piston; the main post penetrates through the axial through hole of the piston, and extends into the counter hole of the piston; an upper spring is arranged between the main post and the piston; the upper end surface of the main post is provided with a blind hole along the axial direction; the side wall of the lower part of the blind hole is provided with a side hole; the upper part of the blind hole is communicated with a nozzle which is arranged on the press head. The liquid in the pump is compressed in advance before compressed out, and thus the injected liquid can be effectively atomized.

Description

The dual spring vavuum pump

Technical field:

The utility model relates to a kind of vavuum pump, particularly a kind of dual spring vavuum pump.

Background technology:

Notification number disclosed be CN2357747Y, the patent No. and be 98251121.3 in the Chinese patent on January 12nd, 2000 bulletin, the patent application of " mouth cleaning solution sprayer " by name; This " mouth cleaning solution sprayer " is that suction pipe and nozzle are set on liquid storage bottle, it is characterized in that pressure-raising pump of installing on the liquid storage bottle, is provided with valve body, spring and valve in the pump housing, and valve body becomes the air-tightness link joint with pump housing inner chamber, constitutes piston; Valve body moves up and down in the pump housing under the effect of hand and spring repeatedly, liquid in the bottle is sucked suction pipe, and extrude atomisation from nozzle.The shortcoming of this " mouth cleaning solution sprayer " is that atomizing effect is poor; As in the strength of hand also can be with bottle very little time liquid ejection, but the liquid of ejection can not atomize because of jet velocity is low, ejection can only be water column; As guaranteeing each atomizing effect that sprays, just necessary enough big power and the speed used must be fast, but the strength of its hand is uncontrollable, so atomizing effect is difficult to control.

Certainly, the purposes of dual spring vavuum pump described in the utility model is not limited to be used in the atomizing of mouth cleaning solution, also can be used on the make-up and beauty articles for use such as hair jelly.

Summary of the invention:

Technical problem:

The utility model will solve existing sprayer and have the problem that atomizing effect is poor, can not guarantee each atomizing effect that sprays.

Technical scheme:

A kind of dual spring vavuum pump comprises head, principal post, bottle cap, subpost, body, bottle, piston, sliding plug, steel ball and spring; It is characterized in that being fixed in the chamber body on bottle top from the bottom to top order by bottle cap places steel ball, subpost, piston and principal post, the perforate of body lower end is less than diameter of the steel ball, and piston lower surface is withstood in the subpost upper surface; Be provided with lower spring between subpost and body bottom, piston has axially extending bore, this through hole lower surface has counterbore, the internal diameter of principal post external diameter and piston axially extending bore slides and matches, the axially extending bore that principal post passes piston stretches in the counterbore of piston, principal post is provided with external diameter by place, piston top and presents a theatrical performance as the last item on a programme greater than the annular of piston axially extending bore internal diameter, principal post top is provided with the annular stop platform, be equipped with upper spring at limiting stand and piston space, principal post limits by limiting stand can not all stretch out the bottle cap upside, the principal post upper surface has blind hole vertically, and the blind hole lower sidewalls has side opening, and this blind hole top communicates with nozzle on the head.

Described dual spring vavuum pump is characterized in that the subpost upper surface has pilot hole vertically, and the principal post lower end is provided with the guide head that stretches in the subpost pilot hole, and guide head and pilot hole are slidingly matched.

Operation principle: during by lower contact, because of joint links to each other with principal post, principal post compression upper spring moves downward, side opening on the principal post separates with the axially extending bore of piston and enters the blind hole that makes principal post in the counterbore and communicate with the counterbore of piston, it is presented a theatrical performance as the last item on a programme and to pressing down piston is moved downward in piston when principal post continues to move downward, pressure increases behind the liquid pressurized in the body plenum between the steel ball of piston below, when pressure increases to a certain degree, separate with piston lower surface the subpost upper surface, the nozzle that liquid enters in the piston counterbore after the principal post side opening enters blind hole from the head sprays at a high speed, when the speed of pushing head is enough big, liquid will break out injection; After unclamping the hand of pushing head, subpost is upper surface and piston lower surface applying under the effect of lower spring, principal post moves upward under the upper spring effect simultaneously, its side opening enters in the axially extending bore of piston and is closed, piston produces negative pressure to the space between steel ball and steel ball is moved upward, and liquid in the bottle is sucked to prepare against when pushing next time use.

Beneficial effect:

Owing to adopted technical scheme described in the utility model, the ejection liquid before ejection through precompressed, if pressure is not enough, subpost can not separate with the lower surface of piston, liquid can not spray, have only that subpost just separates with the lower surface of piston when pressure is enough big,, guaranteed that each injection all has atomizing effect preferably so the jet velocity of the liquid of ejection is just high.

Description of drawings:

Fig. 1 is the internal structure schematic diagram of dual spring vavuum pump described in the utility model.

Fig. 2 is the enlarged drawing of A part among Fig. 1.

Fig. 3 is the schematic diagram of side opening when entering in the counterbore after axially extending bore on the piston separates that makes when pushing head among Fig. 2 on the principal post.

Fig. 4 is the cutaway view of piston among Fig. 1 embodiment.

Drawing description of symbols: 1-head, 2-nozzle, 3-principal post, 31-blind hole, the 32-side opening, 33-guide head, 4-bottle cap, 5-upper spring, the 6-piston, 61-axially extending bore, 62-counterbore, 7-body, the 8-subpost, the 81-pilot hole, 9-holds in the palm cover, the 10-steel ball, the sliding plug of 11-, 12-bottle, the 13-base, 14-lower spring, 15-pad.

The specific embodiment:

Fig. 1 is the internal structure schematic diagram of a specific embodiment of dual spring vavuum pump described in the utility model.

In conjunction with Fig. 1, Fig. 2 and Fig. 3 as seen, described dual spring vavuum pump comprises head 1, principal post 3, bottle cap 4, subpost 8, body 7, bottle 12, piston 6, sliding plug 11, steel ball 10, goes up lower spring 5 and 14; Body 7 is fixed on bottle 12 tops by bottle cap 4 and holder cover 9, places steel ball 10, subpost 8, piston 6 and principal post 3 in proper order from the bottom to top in the inner chamber of body 7, and subpost 8 upper surfaces have pilot hole 81 vertically, and piston 6 lower surfaces are withstood in subpost 8 upper surfaces; Be provided with lower spring 14 between subpost 8 and body 7 bottoms, piston 6 has axially extending bore 61, through hole 61 lower surfaces have counterbore 62, the internal diameter of principal post 3 external diameters and piston axially extending bore 61 slides and matches, the axially extending bore 61 that principal post 3 passes piston 6 stretches in the counterbore 62 of piston 6, it 34 (is a step greater than presenting a theatrical performance as the last item on a programme of piston axially extending bore 61 internal diameters that principal post 3 is provided with external diameter by place, piston 6 tops herein, it is the same that its effect is presented a theatrical performance as the last item on a programme with annular), principal post 3 tops are provided with limiting stand 35, be equipped with upper spring 5 at limiting stand 35 and 6 in piston, principal post 3 limits principal post 3 by limiting stand 35 can not all stretch out bottle cap 4 upsides, principal post 3 upper surfaces have blind hole 31 vertically, blind hole 31 lower sidewalls have side opening 32, these blind hole 31 tops communicate with nozzle 2 on the head 1, principal post 3 lower ends are provided with the guide head 33 that stretches in the subpost pilot hole 81, and guide head 33 is slidingly matched with pilot hole 81.

As can be seen from Fig. 3, when press head 1 make on the principal post 3 side opening 32 with enter in the counterbore 62 after the axially extending bore 61 of piston 6 separates, if continue to push head 1, piston 6 downsides pressure in the space of 10 of steel balls sharply increases, and subpost 8 is forced to move downward with piston 6 and is separated, thereby the blind holes 31 in the principal post 3 are communicated with the space of piston 6 downsides to steel ball 10, liquid in this space is through blind hole 31 ejections, because of before ejection, liquid is by precompressed, so the atomizing effect during ejection is splendid.

Claims

1, a kind of dual spring vavuum pump comprises head, principal post, bottle cap, subpost, body, bottle, piston, sliding plug, steel ball and spring; It is characterized in that being fixed in the chamber body on bottle top from the bottom to top order by bottle cap places steel ball, subpost, piston and principal post, the perforate of body lower end is less than diameter of the steel ball, and piston lower surface is withstood in the subpost upper surface; Be provided with lower spring between subpost and body bottom, piston has axially extending bore, this through hole lower surface has counterbore, the internal diameter of principal post external diameter and piston axially extending bore slides and matches, the axially extending bore that principal post passes piston stretches in the counterbore of piston, principal post is provided with external diameter by place, piston top and presents a theatrical performance as the last item on a programme greater than the annular of piston axially extending bore internal diameter, principal post top is provided with the annular stop platform, be equipped with upper spring at limiting stand and piston space, principal post limits by limiting stand can not all stretch out the bottle cap upside, the principal post upper surface has blind hole vertically, and the blind hole lower sidewalls has side opening, and this blind hole top communicates with nozzle on the head.

2, dual spring vavuum pump according to claim 1 is characterized in that the subpost upper surface has pilot hole vertically, and the principal post lower end is provided with the guide head that stretches in the subpost pilot hole, and guide head and pilot hole are slidingly matched.