CN2705625Y

CN2705625Y - Quantitative pump head for medicine

Info

Publication number: CN2705625Y
Application number: CN 200320127421
Authority: CN
Inventors: 王军
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-27
Filing date: 2003-11-27
Publication date: 2005-06-22
Anticipated expiration: 2013-11-27

Abstract

A kind of medicinal quantitative pump head belongs to daily service for life articles for use.Health care oral liquid, syrup etc. adopt conventional bottle cap at present, and when falling the medicine need be taken off bottle cap earlier, and the inclination bottle is poured out soup and built bottle cap again, in when falling the medicine, has a small amount of soup and flows down along bottleneck, and is inconvenient and unhygienic, in addition, the dose of pouring out is difficult to accurate grasp, influences result of treatment.The purpose of this utility model provides a kind of medicinal quantitative pump head, on the basis of shampoo pump head, improved, set up structures such as outlet one-way valve, vent seat, no metal spring or metal spring directly do not contact with soup in the pump head, improve the overall tightness of pump head simultaneously, make it to go for medicine.Be similar to when taking soup and take shampoo, a body is mentioned balance or rotate and depress after mentioning again, a certain amount of soup will flow out.Owing to each go out the structure control of dose by the pump housing, thus very accurate, and bottleneck dropping liquid phenomenon can not appear, make that to take soup very convenient, accurately and health.

Description

A kind of medicinal quantitative pump head

Technical field the utility model is the structure that quantitatively extrudes about soup, can be used for the quantitative pump head of soup specifically, belongs to daily service for life articles for use.

The present various health care oral liquids of background technique, syrup etc. all adopt conventional bottle cap, need take off bottle cap when taking earlier, and the inclination bottle is poured out soup, builds bottle cap then.The dose of pouring out need be estimated control, or with measuring cup control, is difficult to accurate grasp; When taking, some only estimate probably that the dose error is bigger, affects the treatment.In addition, in when falling the medicine, have a small amount of soup to flow down along bottleneck unavoidably, unhygienic and use inconvenience.The part shampoo of selling on the market has a pump head now, and a body of light press pump head during use just has shampoo and flows out, and the dropping liquid phenomenon can not occur.But the shampoo pump head can not be used on the medicine bottle, because metal spring wherein can react with soup and influence the soup quality, overall tightness is also not high enough.

The summary of the invention the purpose of this utility model provides a kind of medicinal quantitative pump head, on the basis of shampoo pump head, improved, set up structures such as outlet one-way valve, vent seat, no metal spring or metal spring directly do not contact with soup in the pump head, improve the overall tightness of pump head simultaneously, make it to go for medicine.Be similar to when taking soup and take shampoo, a body is mentioned balance or rotate and depress after mentioning again, a certain amount of soup will flow out.Owing to each go out the structure control of dose by the pump housing, thus very accurate, and bottleneck dropping liquid phenomenon can not appear, make take that soup is very convenient, dose accurately and health.

The purpose of this utility model has been achieved in that a pump housing, the piston that matches is wherein arranged, be connected with piston rod, a body on the piston, a soup flow pass that runs through is wherein arranged, an outlet one-way valve is housed in a body inner liquid medicine flow pass, and soup can only flow out from here.There is a liquid entering hole one-way valve pump housing lower end, and soup can only flow to the pump housing from here.Mention body during use and drive on the piston and move, or piston moves up under spring action, pump housing inner carrier below pressure reduces, and a bottle inner liquid medicine backs down the liquid entering hole one-way valve and enters the pump housing under the atmospheric pressure effect; The push-down head body drives piston and moves down, and pump housing internal pressure strengthens, and soup backs down the outlet one-way valve and flows out.

Two schemes that solve sealing problem and metal spring and soup contact problem are arranged, and scheme one is such: contact with soup for fear of metal spring, at spring surface applied one deck plastics or rubber; Usually the fluid mouth is pressed in the vent aperture on the vent seat, vent aperture and fluid mouth are interference fit, realize the sealing to outlet and vent.Scheme two is such: shock mount not in the pump housing, and drive a piston stroking upward by a manpower pulling body during use soup is sucked the pump housing, depress a body soup is extruded, horizontally rotate a body then, be pressed into the vent seat, closed vent hole and outlet.

Description of drawings Fig. 1 is the structural representation according to the embodiment 1 who the utility model proposes, among the figure, and the 1st, the pump housing, the 2nd, vent seat, the 3rd, the sponge in the vent, the 4th, fluid mouth, the 5th, end cap, the 6th, outlet one-way valve elastomer, the 7th, outlet one-way valve spool, the 8th, a body, the 9th, seal ring, the 10th, a body is inserted, the 11st, piston rod, piston and piston rod are an integral body, the 12nd, and loam cake, the 13rd, inner seal ring, the 14th, spiral cover, the 15th, bottleneck seal ring, the 16th, spring, the 17th, retainer, handle according to solid part among the figure, the 18th, ball, the 19th, suction pipe, the 20th, bottle.The body that double dot dash line is represented among the figure is the position that the fluid mouth is pressed into breather port, is closed state.Bottle is not the constituent element of pump head, draws with double dot dash line, and it is transparent, no matter cut open and do not cut open the visibility that does not influence its inner pump housing.

Fig. 2 is the structural representation according to the embodiment 2 who the utility model proposes, among the figure, and the 21st, the pump housing, the 22nd, the vent seat, the 23rd, the sponge in the vent, the 24th, fluid mouth, the 25th, outlet one-way valve spool, the 26th, outlet one-way valve elastomer, 27 end caps, the 28th, handle, the 29th, a body, the 30th, piston rod, piston and piston rod are an integral body.The 31st, seal ring, the 32nd, loam cake, the 33rd, spiral cover, the 34th, bottleneck seal ring, the 35th, liquid entering hole one-way valve, the profile of only drawing among the figure, concrete structure such as Figure 12, the 36th, suction pipe, the 37th, bottle.Among the figure, represent position after a body is pressed into the vent seat with double dot dash line.

Fig. 3 is the structural representation of piston rod among Fig. 1 (11) upper end, and Fig. 4 is the body structural representation of (10) of inserting, and Fig. 5, Fig. 6 represent two kinds of outlet one-way valve elastomer structures, adopt the ratio of amplifying to draw.Fig. 7 is the partial sectional view that one-way valve spool and fluid mouth place are installed in the body, adopts the ratio of amplifying to draw.Fig. 8 is the structural representation of loam cake (12), and Fig. 9 is the structural representation of the pump housing (1).Figure 10, Figure 11 are the structural representations of liquid entering hole one-way valve spool (39) among two kinds of Fig. 2, adopt the ratio of amplifying to draw, and Figure 12 is the structural representation of liquid entering hole one-way valve (35) among Fig. 2, among the figure, and the 38th, valve body, the 39th, spool.The structure of the vent seat (22) in Figure 13 presentation graphs 2 adopts the ratio of amplifying to draw.

Among the specific embodiments embodiment 1, near the outlet of a body herb liquid flow pass one-way valve is housed, it is pressed on spool (7) in the body inner liquid medicine flow pass by elastomer (6) and constitutes on the conical surface.One-way valve elastomer (6) can be a metal spring, also can be as Fig. 5, the cylindrical body made from rubber that has axial groove or hole shown in Figure 6, can also be the prism that rubber is made.One-way valve spool (7) is a ball or is that an end is the cylindrical body of sphere as Fig. 2.One-way valve will export sealing at ordinary times, only depress a body (8), and pump housing inner liquid medicine pressure raises, and backs down spool (7), and soup could flow out.

There is an external cylindrical surface perpendicular to the piston rod axis upper end of piston rod (11), and a body (8) and a body are inserted has the inner periphery that matches with it on (10).Body is inserted and is shaped on pin on (10), the relevant position of body (8) is shaped on the hole, the two relies on pin to combine closely with the interference fit in hole, the external cylindrical surface of piston rod upper end perpendicular to the piston rod axis is wrapped in wherein, and can be around the rotational of this external cylindrical surface.On this external cylindrical surface, be shaped on a circular groove, seal ring (9) wherein is housed around soup flow pass aperture.

Fluid mouth (4) is made with rubber, and usual, it is pressed in the aperture of vent seat (2), relies on interference fit between the two that vent is sealed, and fluid mouth (4) is protected; When taking soup, a body (8) is lifted, place level, horizontally rotate an angle, and then depress, a certain amount of soup will flow out.If the soup large usage quantity, each liquid outlet quantity of then setting pump head is 1/2nd or 1/3rd of a soup consumption, depresses a body continuously (8) twice or three times, the amount of liquid medicine that can obtain to require.In order to adapt to some special dosage, on piston rod (11), be printed on scale.Be coated with the material of one deck stable chemical performance on the surface of spring (16), for example rubber, plastics etc. avoid soup directly to contact with metal spring.The liquid entering hole one-way valve adopts the structure in the shampoo pump head, the structure herein of not drawing in detail among Fig. 1.

For improving the sealing of pump head, be fixed with an inner seal ring (13) in loam cake (12) lower end, usual piston upper end is pressed on the sealing circle by spring (16).A sponge (3) is housed in the vent, and it can prevent that impurity such as dust from entering in the bottle, and it can also avoid soup to flow out when run-off the straight in use, overturning.

Be shaped on dovetail groove in loam cake (12) upper end, vent seat (2) inserts this groove and combines with loam cake (12), vent on two parts communicates, and to communicate with the vent on spiral cover (14), the pump housing (1) flange, for this reason, be shaped on two pins in the lower end of loam cake (12), the relevant position of spiral cover (14), the pump housing (1) flange is shaped on aperture, and the pin of loam cake (12) inserts aperture can guarantee that the vent of these parts communicates.

Among the embodiment 2, aspects such as being connected of outlet one-way valve, fluid mouth, piston rod scale, vent sponge, loam cake and spiral cover, pump body flange, vent seat and being connected of loam cake are substantially the same manner as Example 1 or close, and difference is mainly in following several respects:

At first, shock mount not in the pump housing, piston stroking upward rely on the manpower pulling.For a convenient pulling body (29), a handle (28) is housed on a body (29).The liquid entering hole one-way valve (35) of the pump housing (21) lower end is made up of valve body (38) and spool (39), and valve body (38) is a cylindrical shape, and the dependence periphery and the pump housing (21) descend the interference fit of stomidium and be fixed in the pump housing (21); Spool (39) is made up of upper sealing plate, slide bar and following block, and they are an integral body.Slide bar can slide up and down in the endoporus of valve body (38), high-low limit position by upper sealing plate, following stop limits spool (39), upper sealing plate is adjacent to and closes one-way valve when the valve body upper-end surface, during use, last handle (28) drives piston stroking upward, and bottle inner liquid medicine jack-up spool (39) under the effect of atmospheric pressure enters the pump housing (21); Press down handle (28), pump housing internal pressure rises, and spool (39) moves down, and upper sealing plate is adjacent to valve body (38) upper-end surface, seals this passage.In order to improve the sealing of import one-way valve, be shaped on an internal conical surface in the upper end of valve body (38), spool (39) upper sealing plate lower end is shaped on the outer conical surface that matches with it, utilizes the cooperation of the conical surface can better guarantee to go out the accuracy of dose.In actual applications, valve body (38) can omit, directly spool (39) is contained in the liquid entering hole of the pump housing (21) lower end, utilize liquid entering hole to replace valve body (38), guide spool (39) moves up and down and limits the high-low limit position, and utilizes the liquid entering hole upper-end surface to cooperate this passage of sealing with the lower end surface of spool (39) upper sealing plate.The liquid entering hole upper end also can be shaped on conical surface, cooperates with spool upper sealing plate conical surface.

Secondly, between body (29) and the piston rod (30) is to be fixedly coupled, horizontally rotate a body (29) after depressing handle (28) at every turn, fluid mouth (24) is pressed in the vent seat (22), utilize the inclined-plane of vent seat (22) lining that fluid mouth (24) is pressed on the vent top, realize sealing vent and fluid mouth.Around at the upper surface of loam cake (32), around the hole of passing through piston rod (30), a seal ring (31) is housed, when fluid mouth (24) was pressed into vent seat (22), the lower end of a body (29) also was pressed on the seal ring (31), realized the sealing fully to pump head thus.

Claims

1. a medicinal quantitative pump head is made up of the pump housing, piston, piston rod, a body, loam cake, spiral cover, suction pipe, bottleneck seal ring etc., it is characterized in that being equipped with in a body inner liquid medicine flow pass outlet one-way valve.

2. medicinal quantitative pump head as claimed in claim 1 is characterized in that exporting one-way valve and is cooperated with hole in the body by a spool, elastomer and form.

3. medicinal quantitative pump head as claimed in claim 1 or 2, the spool that it is characterized in that one-way valve is that a ball or an end are the cylindrical bodys of sphere, elastomer is a metal spring or the cylinder of being made by rubber that has axial groove, hole, and one-way valve spool place is installed in a body one section conical bore.

4. medicinal quantitative pump head as claimed in claim 1 or 2 is characterized in that last covering a vent seat being housed, and a vent is wherein arranged, and a sponge is housed in vent.

5. medicinal quantitative pump head as claimed in claim 1 is characterized in that an external cylindrical surface perpendicular to the piston rod axis is arranged in piston rod upper end, in a body or a body are inserted the inner cylindrical surface that matches is with it arranged; In piston rod upper end, a circular groove is arranged, a seal ring is housed wherein around soup flow pass mouth.

6. as claim 1 or 5 described medicinal quantitative pump heads, it is characterized in that the surface applied of pump housing inner spring has one deck rubber or plastics.

7. medicinal quantitative pump head as claimed in claim 1 or 2 is characterized in that the fluid mouth that a rubber is made is equipped with in the outlet port of soup flow pass on a body.

8. medicinal quantitative pump head as claimed in claim 1 is characterized in that a spool and valve body are arranged in the liquid entering hole one-way valve, and upper sealing plate, slide bar and following block are arranged on the spool, and upper sealing plate can be adjacent in the upper end of valve body or be adjacent to the upper end of liquid entering hole in the pump housing.

9. as claim 1 or 8 described medicinal quantitative pump heads, it is characterized in that in the lower edge of spool upper sealing plate an outer conical surface being arranged, there is the internal conical surface that matches with it the upper end of liquid entering hole on valve body or in the pump housing.

10. as claim 1 or 8 described medicinal quantitative pump heads, it is characterized in that above a body, being equipped with a handle.