CN200939418Y

CN200939418Y - Foam pump

Info

Publication number: CN200939418Y
Application number: CN 200620062318
Authority: CN
Inventors: 林添大
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-31
Filing date: 2006-07-31
Publication date: 2007-08-29
Anticipated expiration: 2016-07-31

Abstract

The utility model relates to a simple-structured and highly reliable foam pump, which comprises a cylinder body, a hydraulic head, a master pillar, a pipe, and screw teeth. The cylinder body comprises a liquid cylinder and a gas cylinder. A small piston is arranged on the bottom of the piston pipe. The upper part of the small piston can reach into the gas cylinder. The surface of large piston is supported by the upper part of the piston pipe. A one-way liquid outlet valve is composed of a valve port and a valve head of the piston pipe. A one-way liquid inlet valve is composed of a liquid inlet and a bead. A spring is arranged between the piston pipe and the bottom of the liquid cylinder. The one-way liquid outlet valve, the inner cavity of the piston pipe, the liquid cylinder and the one-way liquid inlet valve are surrounded to form a liquid cavity. A large piston is matched with the gas cylinder. An annular flexible-wing is fixed on the upper part of the large piston. An annular wall, which covers the annular flexible-wing, is arranged on the master pillar. The master pillar with annular flexible-wing, the large piston, the gas cylinder and the piston pipe are surrounded to form a gas cavity. A one-way gas inlet valve of the gas cavity is composed of the annular flexible-wing and the annular wall. A one-way gas outlet valve is arranged between the air cavity and the gas-liquid dilution zone which is arranged on the upper part of the one-way liquid outlet valve.

Description

Foam pump

Technical field

The utility model relates to a kind of foam pump, particularly a kind of push type suction foam pump.

Background technology

Existing foam pump is made up of suction cylinder and suction fluid cylinder that outlet communicates, wherein aspirating cylinder is made of cylinder block and piston, cylinder block has the inlet, outlet check valve, and the suction fluid cylinder is made of fluid cylinder and piston, bring on the fluid cylinder, the fluid check valve, the piston of suction cylinder links to each other with the piston of suction fluid cylinder, pushing head during use makes the piston of suction cylinder work asynchronously with the piston of suction fluid cylinder, the suction fluid cylinder with the emulsion in the bottle suck, the suction cylinder sucks air, emulsion is mixed mutually in the exit with air and is become the foam ejection then; Its shortcoming is that complex structure, reliability are low.

Summary of the invention

The purpose of this utility model is the low problem of complex structure, reliability that exists in the existing foam pump in order to solve, and a kind of simple in structure, foam pump that reliability is high is provided.

Technical scheme:

The purpose of this utility model is achieved in that a kind of foam pump, comprise cylinder body, head, principal post, webmaster and thread, it is characterized in that cylinder body is divided into fluid cylinder and cylinder, wherein the piston tube lower end is a valve piston, the above position of valve piston can be stretched in the cylinder, and the inner side end of big piston is withstood on piston tube top, the valve port on piston tube top and valve head constitute the fluid check valve, the inlet of fluid cylinder bottom and bead constitute the feed liquor check valve, be provided with spring, the fluid check valve between piston tube and the fluid cylinder bottom, the piston tube inner chamber, surround sap cavity between fluid cylinder and the feed liquor check valve; Big piston and described cylinder match, the top of big piston is provided with the annular soft wing, principal post is provided with the annular wall of entangling the soft wing of this annular, surround air cavity between principal post and the annular soft wing, big piston, cylinder and the piston tube, constitute the breather check valve of this air cavity between the soft wing of described annular and the annular wall, air cavity and between the gas-liquid mixed district on described fluid check valve top, be provided with outgassing nonreturn valve.Depress head during use, it is descending that head drives principal post, big piston, piston tube, air in the air cavity enters the gas-liquid mixed district through outgassing nonreturn valve, and the emulsion in the sap cavity is after the fluid check valve enters gas-liquid mixed district and air and is mixed into, form foam through the mesh on the webmaster, and then the ejection of the nozzle on head.

Described foam pump is characterized in that described fluid check valve is made of the valve head of valve port on the piston tube and valve rod upper end.

Described foam pump is characterized in that described outgassing nonreturn valve is made of people's side opening on annular valve block that is arranged on piston tube top and the piston tube.

Described foam pump is characterized in that described annular valve block is between the interior pipe of piston tube and principal post.

Beneficial effect:

Because to have adopted technical scheme described in the utility model, cylinder and fluid cylinder is conjoined structure, breather check valve be annular, co-structured simply, reliability is high.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the internal structure profile of an embodiment of foam pump described in the utility model.

Fig. 2 is the view when depressing head among Fig. 1 embodiment.

Among the figure 1, head, 2, webmaster, 3, principal post, 601, side opening, 4, thread, 5, big piston, 6, piston tube, 7, cylinder body, 701, air cavity, 702, sap cavity, 8, bead, 703, inlet opening, 901, side opening, 9, subpost, 10, valve rod, 602, valve port, 11, valve head, 501, through hole, 502, the annular wing, 301, annular wall, 00, gas-liquid mixed district, 12, annular valve block, 302, interior pipe, 101, nozzle.

The specific embodiment:

See shown in Figure 1, described foam pump is in holding state, comprise cylinder body 7, head 1, principal post 3, webmaster 2 and thread 4, during use, head 1 is depressed, head 1 drives webmaster 2, principal post 3, big piston 5 and piston tube 6 are descending, air cavity 701 because of in press to rise and make the annular soft wing 502 compress annular wall 301 on the principal post, make simultaneously between piston tube 6 and the big piston 5 and the gap occurs, the gap of air between big piston and piston tube top in the air cavity 701, side opening 601 on the piston tube backs down annular valve block 12---and outgassing nonreturn valve is opened, and air enters gas-liquid mixed district 00; When piston tube 6 is descending, the interior pressure of sap cavity 702 also rises, emulsion in the sap cavity is upwards pushed up valve rod 10 with respect to piston tube, valve head 11 is separated with valve port 602 on the piston tube, the fluid one-way valve opens, after emulsion in the sap cavity enters gas-liquid mixed district 00 and air from outgassing nonreturn valve mixes, the webmaster 2 of flowing through forms foam, nozzle 101 ejections on head, after unclamping head 1, piston tube 6 is under the effect of spring, with piston tube, big piston, principal post, head is the top upwards, the fluid closed check valve that valve head 11 and valve port 602 constitute, produce negative pressure in the sap cavity 702 and bead 8 separated with inlet opening 703---feed liquor one-way valve opens and suck emulsion so that use when depressing head next time, producing negative pressure in the air cavity 701 and make annular valve block 12 be close to the inwall on piston tube top---outgassing nonreturn valve is closed, and the annular soft wing 502 separates with the annular wall 301 on the principal post---breather check valve is opened, and air is through breather check valve, through hole 501 on the big piston enters air cavity 701 and uses when depressing head next time.The state of each part when depressing head seen shown in Figure 2.

Claims

1, a kind of foam pump, comprise cylinder body, head, principal post, webmaster and thread, it is characterized in that cylinder body is divided into fluid cylinder and cylinder, wherein the piston tube lower end is a valve piston, the above position of valve piston can be stretched in the cylinder, and the inner side end of big piston is withstood on piston tube top, the valve port on piston tube top and valve head constitute the fluid check valve, the inlet of fluid cylinder bottom and bead constitute the feed liquor check valve, be provided with spring between piston tube and the fluid cylinder bottom, surround sap cavity between fluid check valve, piston tube inner chamber, fluid cylinder and the feed liquor check valve; Big piston and described cylinder match, the top of big piston is provided with the annular soft wing, principal post is provided with the annular wall of entangling the soft wing of this annular, surround air cavity between principal post and the annular soft wing, big piston, cylinder and the piston tube, constitute the breather check valve of this air cavity between the soft wing of described annular and the annular wall, air cavity and between the gas-liquid mixed district on described fluid check valve top, be provided with outgassing nonreturn valve.

2,, it is characterized in that described fluid check valve is made of the valve head of valve port on the piston tube and valve rod upper end according to the described foam pump of claim 1.

3,, it is characterized in that described outgassing nonreturn valve is made of people's side opening on annular valve block that is arranged on piston tube top and the piston tube according to the described foam pump of claim 1.

4,, it is characterized in that described annular valve block is between the interior pipe of piston tube and principal post according to the described foam pump of claim 3.