The powder allocation mechanism of dry powder pump
Technical field
The present invention relates to a kind of powder allocation mechanism that its inside is contained the dry powder pump of powder ejection; The similar liquids spray gun aspect civilian, can be used for containing various powder such as talcum powder or prickly-heat powder, cosmetic powder; In industrial aspect, also can be used for containing various powder such as dyeing powder.
Background technology
In the traditional habit widely with the packing of the required liquid type product of atomizing cone with use, like aerosol can, foam pump, vacuum pump, but for various powder such as dry powder series products such as prickly-heat powder, talcum powder even pigment powder; Also do not have good packing and method of application, they generally are canned or box-packed, use inconvenience; Need use by other instrument such as spoon or the head of applying powder, and, in use; Because knocking thing over takes place often, causes dry powder to trickle down a ground, both contaminated environment; Cause waste again, people thirst for a kind of new suitable power-product packing and the product of the similar atomizing cone that uses.
Though the spray structure that utilizes the generation of vacuum principle is much like aerosol can, foam pump, vacuum pump or the like; But they only are fit to the liquid type product; Structurally can't satisfy the requirement of dry powder; Can not be with powder from the ejection of container intrinsic fog, so can't directly be applied on the dry powder series products, structure need be done new improvement design.
Summary of the invention
Technical matters to be solved by this invention provides the powder allocation mechanism of a kind of practicality rational in infrastructure, dry powder pump convenient to use, and its promotes the dry powder in the bottle is dialled in the blending box, mixes with air-flow, improves the effect of dusting.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of powder allocation mechanism of dry powder pump, it comprises
One piston rod is a hollow, moves up and down under being cooperated by head cap and elastic element;
It is characterized in that:
One delivery pipe, epimere are that the middle hypomere with piston rod is pluggably connected;
Other has a gear connecting rod, and the upper end is connected with the piston rod middle and lower part, and lower end and gear top are that off-centre links together rotationally;
Gear is to be installed in rotation in the opening of opening or hybrid chamber seat of delivery pipe lower end;
The hybrid chamber seat top of bringing gas port into is connected with delivery pipe.
As improvement, described gear be on the periphery of annular wheel disc distributed and arranged a plurality of metering grooves, reach the requirement of quantitatively dusting, easy to use.
As further improvement; The opening of described delivery pipe lower end and the opening of hybrid chamber seat are combined to form total opening; The gear circular-arc-shaped exterior contour is to present arc surface to cooperate with the position up and down of total opening, and clearance control is in 0.01~1mm scope, gear and always between the opening in the clearance control on the Width in 0.01~1mm scope; Carry dry powder with air-flow in the minimizing hybrid chamber seat and go out, further improve the effect of dusting.
The improvement that is highly profitable is; The dividing plate of its metering of described gear between groove piston rod depress or the state of upspringing under; Last lower clapboard can be blocked on the opening of opening and hybrid chamber seat of delivery pipe lower end; Form basic leak free sealing surface, the compressed air of coming from check valve is fully mixed with dry powder the hybrid chamber seat, reduce the gas flow that spills from opening.
As preferably, the middle and lower part of described piston rod be slipper seal be inserted in the delivery pipe cavity, improve sealing property.
As improvement, described gear connecting rod upper end is that clamping is connected with the piston rod middle and lower part, is convenient to assembling and produces.
As improvement, described gear connecting rod lower end is to be connected with pin with gear top, is convenient to assembling and produces.
As improvement, described gear is that the pivot pin through both sides is installed in rotation in the opening axis hole of delivery pipe both sides or in the opening axis hole of hybrid chamber seat both sides, is convenient to production and assembly.
Compared with prior art, the invention has the advantages that: practicality rational in infrastructure, the dry powder in the bottle is dialled in the hybrid chamber seat, promote to mix with air-flow; Make the mixing of powder and gas fully back and ejection dry powder pump easily, improve the effect of dusting, sealing property is also good; Easy for operation, make and adopt the dry powder pump of this mechanism light, be easy to carry; Further the metering result of use can be reached, aspect civilian, dry powder such as talcum powder or prickly-heat powder, cosmetic powder can be used for containing; In industrial aspect, also can be used for containing dry powder such as dyeing powder, can change people's use habit.
Description of drawings
Fig. 1 is one of block diagram of the present invention;
Fig. 2 is a structure cutaway view of the present invention;
Fig. 3 is STRUCTURE DECOMPOSITION figure of the present invention;
Fig. 4 is structure cutaway view of the present invention (state on the head cap bullet);
Fig. 5 is structure cutaway view of the present invention (a head cap depressed state);
Fig. 6 is two of a block diagram of the present invention;
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Examples of implementation 1, like Fig. 1-3 signal, a kind of dry powder pump, it includes major parts such as bottle 1, lid 2, piston 3, elastic element, piston rod 4, check valve 5, delivery pipe 6, hybrid chamber seat 7, gear 8, gear connecting rod 9, and wherein bottle 1 is a hollow; Its inner chamber is used for containing powder such as talcum powder or prickly-heat powder, uses up for the ease of dry powder in the bottle as far as possible, and bottle 1 bottom is the indent arc, and bottle 1 bottom socket connects bottle base, bottle 1 suitable slot milling; Lid 2 is installed in bottle 1 top through being threaded, liner seal ring 10 between lid 2 and bottle 1 oral area reaches the effect that is tightly connected, and simultaneously, plunger shaft 2.2 is formed at lid 2 tops; The size of plunger shaft 2.2 cooperates with piston 3, and lid 2 outside faces have annular slot 2.1, and accordingly, the lid cover 11 inboard faces of taper type mold annular card article 11.1, are connected with the clamping of draw-in groove through card article; 11 clampings of lid cover are connected on lid 2 outer peripheral faces, and lid cover 11 tops have the ring rib 11.2 of convex, form the limit mounting to piston 3, prevent that it breaks away from plunger shaft 2.2; Thereby piston 3 is driven by head cap 12 and can slide up and down to be installed in the plunger shaft 2.2, forms air compressing mechanism, and elastic element such as big spring 13 are supported between piston 3 and the lid 2, piston 3 is remained have the trend of resetting; Have an annular groove 3.1 on piston 3 outer circumference surfaces, the width of annular groove 3.1 on short transverse is greater than the width of seal ring 3.2, and annular groove 3.1 lower wall surfaces have return-air mouth 3.3, cooperates with the side wall surface shallow slot 3.4 of annular groove 3.1; Make the seal ring 3.2 of liner can slide up and down to be installed in the annular groove 3.1, both realized and the slipper seal of plunger shaft 2.2, realize that simultaneously outside air enters into the return-air function that plunger shaft 2.2 is gone through return-air mouth 3.3, the piston rod 4 and the piston 3 of hollow link together; In present embodiment, piston rod 4 is made of one part with piston 3, and straight piston rod 4 upper ends can be communicated with the horizontal spout on the head cap 2, and piston rod 4 lower ends downward are extended hermetically through the lid 2 on the bottle oral area; Be inserted into slidably in the delivery pipe 6 of the hollow in bottle, and delivery pipe 6 upper ends are to be tightly fixed at lid 2 bottom connecting portions that piston rod 4 is near position, bottleneck position open loop-shaped groove 4.1, liner O shape circle; Realize the slipper seal between piston rod 4 and the bottleneck upper cover 2, piston rod 4 lower ends are taper imports 4.2, near the piston rod 4 outer circumference surface open loop-shaped grooves 4.3 of this taper import, and liner sealing O shape circle; Realize the slipper seal between piston rod 4 and the delivery pipe 6, delivery pipe 6 lower end peripheries also have an annular slot 6.1, and accordingly, hybrid chamber seat 7 inboards have card article 7.1; Be fastened on through clamping on the lower end of delivery pipe 6, delivery pipe 6 lateral openings 6.2, hybrid chamber seat 7 sides are opening 7.2 also, and are involutory with the opening 6.2 of delivery pipe 6 sides; Form total opening, and, be provided with opening axis hole 6.3 in the both sides of delivery pipe 6 lateral openings, other have one be used for powder allocation gear 8; It on the periphery of annular wheel disc distributed and arranged a plurality of metering grooves 8.1, gear 8 is installed in rotation in the opening axis hole 6.3 of delivery pipe 6 both sides through the pivot pin 8.2 of both sides, gear 8 circular-arc-shaped exterior contours are to present arc surface to cooperate with the position up and down of total opening, and clearance control is in 0.01~1mm scope; Preferably at 0.02~0.1mm, between gear 8 and the total opening in the clearance control on the Width in 0.01~1mm scope, preferably at 0.02~0.1mm, a gear connecting rod 9 is arranged in addition in the delivery pipe; Gear connecting rod 9 appears substantially inverted U-shaped, and draw-in groove 4.4 clampings of gear connecting rod 9 upper ends and piston rod 4 middle and lower parts couple together, gear connecting rod 9 lower ends and gear 8 tops be with pin 15 rotationally off-centre couple together, thereby between hybrid chamber seat 7 and piston rod 4, be provided with the piston rod driving with bottle in powder dial in the powder allocation mechanism in the hybrid chamber seat 7; Powder in the bottle constantly pushed in the hybrid chamber seat 7 goes, the dividing plate 8.3 between the gear metering groove 8.1 head cap depress or the state of upspringing under, last lower clapboard 8.3 can be blocked on the opening of opening and hybrid chamber seat 7 of delivery pipe 6 lower ends, forms basic sealing surface.Other has a check valve 5 to be arranged on bottle 1 oral area; The admission port of check valve 5 is communicated with plunger shaft 2.2; And the air extractor duct of check valve 5 is communicated with the admission port of hybrid chamber seat 7 through connection pipe 14 indirectly; Make hybrid chamber seat 7 become the hybrid chamber seat 7 of mixed-powder, air-flow, the opening 7.2 of hybrid chamber seat becomes powder inlet, is communicated with bottle 1 inner chamber.Check valve 5 adopts the one-way valve structures of the conventional confguration of check valve body 5.1, steel ball 5.2 and little spring 5.3 compositions; Check valve body 5.1 grafting are fixed on the Connection Block below the lid 2; Accordingly, be provided with steel ball 5.2 and little spring 5.3 in the check valve body 5.1, through connection pipe 14; Steel ball 5.2 and little spring 5.3 are installed in the check valve body 5.1, with the induction opening fitted seal.Head cap 12 sides form positioning convex strip 12.1 in addition; Accordingly; On lid 2, be furnished with detent 2.3, head cap 12 is to be connected through socket to realize rotating connection with piston rod 4, rotates to when head cap 12 under detent 2.3 alignments of positioning convex strip 12.1 and lid; The spout of piston rod 4 upper ends and the horizontal spout connection on the head cap 12, and other positions are disconnected.
Its principle of work is such: rotation head cap 12 is opened to the ON direction, and when putting in place, head cap 12 rotates under detent 2.3 alignments of positioning convex strip 12.1 and lid 2, and staff is pressed head cap 12; Overcome the elasticity strength of spring, drive piston 3 through piston rod 4 and move downward, the seal ring on piston 3 peripheries is under the effect of lid 2 inwalls friction strength; Upwards slide, until annular groove 3.1 end faces that withstand on the piston outside, the slipper seal between realization and lid 2 inwalls forms air compressing mechanism; Gas in the lid 2 is pressed towards the bottom, through the check valve 5 of bottle oral area, through the induction opening of check valve; Air pressure is opened steel ball, leads to hybrid chamber seat 7 by connection pipe 14, simultaneously; Piston rod 4 bottoms are connecting gear connecting rod 9, move downward driven gear 8 and do the moving fortune of semicircumference, bring the dry powder of placing in the bottle 1 in the hybrid chamber seat 7 into through the scale tank 8.1 of gear; Here, gas and dry powder form mixtinite, cross the piston rod 4 of delivery pipe 6, hollow along with air communication; Be flushed to the spout of head cap 12, the spout ejection from head cap supplies the people to use; On the contrary, staff unclamps head cap 12, and head cap 12 resets under the effect of spring; Drive piston 3 upward movements through piston rod 4, the seal ring on piston 3 peripheries is under the effect of lid 2 inwalls friction strength; To lower slider, until annular groove 3.1 bottom surfaces that withstand on the piston outside, at this moment; Extraneous air enters into plunger shaft 2.2 through return-air mouth 3.3 and replenishes air, because the air pressure in the plunger shaft 2.2 is less than normal, check valve 5 is closed; Make the air in the plunger shaft 2.2 can not be transported to hybrid chamber seat 7 through check valve 5, connection pipe 14, piston rod 4 is connecting gear connecting rod 9, and upward movement also driven gear 8 is done the moving fortune of reverse semicircumference; Scale tank 8.1 through gear is dialled in dry powder in the hybrid chamber seat 7, replenishes dry powder, prepares for use next time; After head cap 12 resets, can rotate head cap 12, reach and close effect to OFF direction 90 degree.