A kind of dustproof emulsion pumps mechanism
Technical field
The present invention relates to a kind of dustproof emulsion pumps mechanism.
Background technology
Emulsion pumps is due to its design fineness, easy to use, widely the industry such as application and daily use chemicals and medicine.But existing emulsion pumps part is many, complex structure, manufacture difficulty is large, productive costs is high, existing emulsion pumps after knocked down packing, the nozzle of emulsion pumps will long term exposure outside, in use procedure, the pollutants of dust and so on is easy to enter into nozzle, pollutes.The shortcomings such as the defect designing due to existing emulsion pumps in addition, has in use existed pump relatively slow, and spray volume is stable relatively not.Can not meet user's demand.
So existing emulsion pumps awaits further perfect.
Summary of the invention
The object of the invention is, in order to overcome weak point of the prior art, provides a kind of simple in structure, and productive costs is low, easy to assembly, plays pump fast, the metastable dustproof emulsion pumps of spray volume mechanism.
In order to achieve the above object, the present invention adopts following scheme:
A kind of dustproof emulsion pumps mechanism, include combining cover, it is characterized in that: in described combining cover, be provided with pump assembly, on described pump assembly top, be provided with the button that can drive pump assembly work, on described combining cover upper surface, be provided with bulge loop, on described bulge loop, be arranged with large enclosing cover, in described bulge loop outer wall bottom, be provided with connection button bit, described large enclosing cover inwall be connected button bit correspondence position on be provided with annular link slot, described connection button bit is fastened in annular link slot.
A kind of dustproof emulsion pumps as above mechanism, it is characterized in that described pump assembly includes pump chamber, in described pump chamber upper inside wall, be provided with tightening cover, in described tightening cover, be provided with pump rod, on pump rod, be provided with limited step on described, the upper pump rod on described limited step top stretches out described combining cover, the upper pump rod of described limited step bottom is arranged in combining cover, described button is connected on pump rod, on upper pump rod outer wall below described limited step, be arranged with piston, between described piston and limited step, be provided with auxiliary spring, described auxiliary spring is set on pump rod, in pump chamber on described below pump rod, be provided with lower pump rod, in described pump chamber bottom, be provided with positioning step, between described lower pump rod and positioning step, be provided with main spring, in described pump chamber bottom, be provided with pump pearl.
A kind of dustproof emulsion pumps as above mechanism, is characterized in that being provided with locating convex block on described tightening cover, in described pump chamber upper end, is provided with knock hole, and described locating convex block is arranged in knock hole.
A kind of dustproof emulsion pumps as above mechanism, it is characterized in that described pump chamber includes the first pump district, below described the first pump district, be provided with the second pump district, the internal diameter in the second pump district is less than the internal diameter in the first pump district, between described the first pump district and the second pump district, be provided with the first connecting portion, in described the second lower end, pump district, be connected with San Beng district, the internal diameter in described San Beng district is less than described the second pump district internal diameter, between described the second Yu Sanbeng district, pump district, be provided with the second connecting portion, described positioning step is arranged on below, described San Beng district.
A kind of dustproof emulsion pumps as above mechanism, it is characterized in that described combining cover includes lid, on described lid upper surface, be provided with evagination connecting portion, in the middle of described evagination connecting portion, be provided with mounting hole, described upper pump rod is arranged in mounting hole, and it is upper that described connection button bit is arranged on evagination connecting portion outside, on described evagination connecting portion inwall, is provided with the groove that is located by connecting, described tightening cover outer wall is provided with position limiting convex ring, described in described position limiting convex ring is fastened on, is located by connecting on groove.
A kind of dustproof emulsion pumps as above mechanism, is characterized in that described lower pump rod includes the lower pump rod body that can insert pump rod inner chamber, on described lower pump rod body lower end, is provided with sealing head.
A kind of dustproof emulsion pumps as above mechanism, is characterized in that being provided with pad in described combining cover.
A kind of dustproof emulsion pumps as above mechanism, is characterized in that being connected with liquid guiding tube in described pump chamber lower end.
A kind of dustproof emulsion pumps as above mechanism, is characterized in that being provided with connecting thread in described combining cover.
A kind of dustproof emulsion pumps as above mechanism, is characterized in that being provided with positioning groove in described combining cover lower surface.
In sum, the present invention with respect to its beneficial effect of prior art is:
One, the present invention is simple in structure, is provided with pump assembly in combining cover, on pump assembly top, is provided with button, at described combining cover, is arranged with large enclosing cover outward, effectively prevents that the pollutants of dust and so on from entering button, has guaranteed the health of emulsion pumps.
Two, middle pump body assembly of the present invention adopts dual spring design, makes emulsion of the present invention pump up pump fast, and spray volume is stable.
Three, emulsion pumps productive costs of the present invention is low, easy to use.
Four, in the present invention, between combining cover and large enclosing cover, by being connected between button bit and annular link slot, cooperatively interact, convenient and fast connection, fasten fastening and seal.
Accompanying drawing explanation
Fig. 1 is schematic perspective view of the present invention;
Fig. 2 is the decomposing schematic representation of Fig. 1;
Fig. 3 is Fig. 1 midship section schematic diagram;
Fig. 4 is the enlarged drawing at A place in Fig. 3;
Fig. 5 is the enlarged drawing at B place in Fig. 3;
Fig. 6 is the schematic diagram of tightening cover in the present invention;
Fig. 7 is the schematic diagram of pump chamber of the present invention;
Fig. 8 is the schematic diagram of combining cover of the present invention;
Fig. 9 is the schematic diagram of pump rod under the present invention.
The specific embodiment
Below in conjunction with accompanying drawing explanation and the specific embodiment, the invention will be further described:
A kind of dustproof emulsion pumps mechanism as shown in Figures 1 to 3, include combining cover 1, in described combining cover 1, be provided with pump assembly 2, on described pump assembly 2 tops, be provided with the button 3 that can drive pump assembly 2 work, on described combining cover 1 upper surface, be provided with bulge loop 11, on described bulge loop 11, be arranged with large enclosing cover 4, in described bulge loop 11 outer wall bottoms, be provided with and connect button bit 111, described large enclosing cover 4 inwalls be connected button bit 111 correspondence positions on be provided with annular link slot 41, described connection button bit 111 is fastened in annular link slot 41.
The present invention is simple in structure, is arranged with large enclosing cover 4 outside described combining cover 1, effectively prevents that the pollutants of dust and so on from entering button, has guaranteed the health of emulsion pumps.
As Fig. 2, 3, shown in 4, pump assembly 2 of the present invention includes pump chamber 21, in described pump chamber 21 upper inside wall, be provided with tightening cover 22, in described tightening cover 22, be provided with pump rod 23, on pump rod 23, be provided with limited step 24 on described, the upper pump rod 23 on described limited step 24 tops stretches out described combining cover 1, the upper pump rod 23 of described limited step 24 bottoms is arranged in combining cover 1, described button 3 is connected on pump rod 23, on upper pump rod 23 outer walls below described limited step 24, be arranged with piston 25, between described piston 25 and limited step 24, be provided with auxiliary spring 26, described auxiliary spring 26 is set on pump rod 23, in pump chamber 21 on described below pump rod 23, be provided with lower pump rod 27, in described pump chamber 21 bottoms, be provided with positioning step 28, between described lower pump rod 27 and positioning step 28, be provided with main spring 29, in described pump chamber 21 bottoms, be provided with pump pearl 210.
As shown in Figure 7, described in the present invention, lower pump rod 27 includes the lower pump rod body 271 that can insert pump rod 23 inner chambers, on described lower pump rod body 271 lower ends, is provided with sealing head 272.
Middle pump body assembly 2 of the present invention adopts dual spring design, makes emulsion of the present invention pump up pump fast, and spray volume is stable.
As shown in Figure 6, the present invention is provided with locating convex block 221 on described tightening cover 22, in described pump chamber 21 upper ends, is provided with knock hole, and described locating convex block 221 is arranged in knock hole.
As Fig. 2, 3, shown in 4 and 7, pump chamber 21 of the present invention includes the first pump district 211, below described the first pump district 211, be provided with the second pump district 212, the internal diameter in the second pump district 212 is less than the internal diameter in the first pump district 211, between described the first pump district 211 and the second pump district 212, be provided with the first connecting portion 213, in 212 lower ends, described the second pump district, be connected with San Beng district 214, the internal diameter in described San Beng district 214 is less than described the second pump district 212 internal diameters, between 212 Yu Sanbeng districts 214, described the second pump district, be provided with the second connecting portion 215, described positioning step 28 is arranged on 214 belows, described San Beng district.
As shown in Fig. 2,3 and 8, combining cover described in the present invention 1 includes lid 12, on described lid 12 upper surfaces, be provided with evagination connecting portion 13, in the middle of described evagination connecting portion 13, be provided with mounting hole 14, described upper pump rod 23 is arranged in mounting hole 14, on described evagination connecting portion 13 inwalls, be provided with the groove 15 that is located by connecting, the first described pump district 211 outer walls are provided with position limiting convex ring 2111, described in described position limiting convex ring 2111 is fastened on, are located by connecting on groove 15.
In the present invention, in described combining cover 1, be provided with pad 5.In described pump chamber 21 lower ends, be connected with liquid guiding tube 6.In described combining cover 1, be provided with connecting thread 7.
Principle of work of the present invention:
1, in use first pull out large enclosing cover 4;
While 2, pressing button 3, overcome the elastic force of main spring 29, button 3 moves down, because of the elastic force effect of auxiliary spring 26, piston 25 and then moves down together, and the gas of pump chamber 21 inner chambers is compressed, when piston 25 withstands the first connecting portion 213 between the first pump district 211 and the second pump district 212, overcome auxiliary spring 26 elastic force, piston 25 is opened with lower pump rod 27 sealing positions, and pump chamber 21 inner chamber gases from then on position are discharged from; Lower pump rod 27 moves down into the second connecting portion 215 between 212 Yu Sanbeng districts 214, the second pump district, and button 3 stops pressing down;
3, during release button 3, because of the effect of main spring 29 and auxiliary spring 26, piston 25 resilience together with the rapid sealing also of lower pump rod 27, pump chamber 21 inner chambers form parital vacuums, under external atmosphere pressure effect, pump pearl 210 is introduced and washed open to liquid from liquid guiding tube 6 and enter inner chamber; Continue to press, thereby liquid is sprayed by the flow through outlet of button 3 of upper pump rod 23 because of liquid incompressibility.
More than show and described groundwork of the present invention and principal character and advantage of the present invention.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.