CN204056655U - A kind of foam pump - Google Patents
A kind of foam pump Download PDFInfo
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- CN204056655U CN204056655U CN201420499009.7U CN201420499009U CN204056655U CN 204056655 U CN204056655 U CN 204056655U CN 201420499009 U CN201420499009 U CN 201420499009U CN 204056655 U CN204056655 U CN 204056655U
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- piston rod
- large piston
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- check valve
- nexine
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Abstract
A kind of foam pump, it comprises the pump housing, large lid, large piston, large piston rod, valve piston, small piston rod, head cap, foamed assembly, it is characterized in that: described large piston adopts bivalve membrane structure, nexine valve longitudinally offers the air channel entering large piston gas cavity for air, the lower end of large piston rod is one-body molded a check valve, the lower end of check valve and the upper end grafting of small piston rod are fixed, large piston bush is located at the outside of small piston rod and check valve, the inner wall lower of the nexine valve of large piston is expanding shape, and be provided with the gap that supplied gas is passed through between small piston rod, the upper end sidepiece of check valve is laterally provided with the induction opening with this free-running fit, conical sealing surface is formed outside the upper end of nexine valve, the lower end of large piston rod is provided with the bulge loop coordinated with conical sealing surface.The utility model has simple and reasonable, easy to assembly, and the feature of good seal performance.
Description
Technical field
The utility model relates to a kind of foam pump.
Background technology
Foam pump is widely used in daily cosmetics, the fields such as medicine, as the Chinese patent " a kind of foam pump " that the patent No. is 200720113219.8, it includes the pump housing, large piston, large piston rod, valve piston, small piston rod, head cap, foam screen, it is characterized in that arranging in described large piston rod the check valve with large piston gas cavity connects, and, the valve block in sleeve-shaped that check valve main body adopts elastomeric material to make, valve block is arranged on the permanent seat of large piston rod with step surface, and, the conical sealing surface that valve block upper end adopts diameter to increase gradually, fitted seal is carried out with the intercommunicating pore on large piston rod, intercommunicating pore is communicated with gas-liquid mixed cavity and large piston gas cavity in large piston rod.This foam pump needs to arrange one in addition as the valve block of check valve and the permanent seat fixing large piston rod in large piston rod, the not only many and assembling trouble of complex structure, part, and air inlet and to give vent to anger be all undertaken by large piston through slot, sealing property is not ideal enough, therefore need to further improve its structure, make its structure and assembling more simple, convenient, foaming effect is better.
Summary of the invention
Technical problem to be solved in the utility model be provide for the above-mentioned state of the art a kind of structure more advantages of simple, assemble foam pump easily.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of foam pump, it comprises the pump housing, large lid, large piston, large piston rod, valve piston, small piston rod, head cap, foamed assembly, large piston rod is coaxially arranged on the top of small piston rod, spring is supported with between the bottom of small piston rod and the pump housing, it is characterized in that: described large piston adopts bivalve membrane structure, nexine valve longitudinally offers the air channel entering large piston gas cavity for air, the lower end of large piston rod is one-body molded a check valve, the lower end of check valve and the upper end grafting of small piston rod are fixed, large piston bush is located at the outside of small piston rod and check valve, the inner wall lower of the nexine valve of large piston is expanding shape, and be provided with the gap that supplied gas is passed through between small piston rod outer wall, the upper end sidepiece of check valve is laterally provided with the induction opening with this free-running fit, conical sealing surface is formed outside the upper end of nexine valve, the lower end of large piston rod is provided with the bulge loop coordinated with conical sealing surface, when large piston rod moves downward, the conical sealing surface of nexine valve and bulge loop offset fitted seal, air channel is closed, gap communicates with induction opening simultaneously, one-way valve opens, gas enters gas-liquid mixed chamber large piston rod from the gas cavity of large piston, otherwise, the top of small piston rod upward movement and nexine valve under the action of the spring offsets, induction opening is closed, the conical sealing surface of nexine valve is separated with bulge loop simultaneously, gas enters the gas cavity of large piston from the external world.
As improvement, the vertical section of described small piston rod is criss-cross, and the upper end of small piston rod forms the step groove that the check valve for large piston rod is planted, and check valve is the tube-in-tube structure of bottom undergauge, the lower end of check valve is plugged in step groove, and induction opening is opened on the cascaded surface of check valve undergauge.
As improvement, the upper end of the air channel in the nexine valve of described large piston is in the V-arrangement opening be convenient to outside air and entered.
As improvement, the upper end of described large piston rod is provided with foam screen and lower foam screen successively, and wherein descend foam screen to be set in the upper end in the gas-liquid mixed chamber of large piston rod, upper foam screen is coaxially arranged on above lower foam screen, between large piston rod and head cap.
Improve, the side of described head cap offers trumpet-shaped spout, is provided with multiple foam hole in the inner end of spout again.
Improve, the upper end of the described pump housing is provided with the edge of evagination again, the corresponding annular slot being provided with indent inside the upper end of large lid, and outside annular slot, be provided with the convex tendon preventing edge slippage, and the pump housing is connected and fixed by the mode of clamping with large lid.
Further improvement, the lower end inside of described large lid is provided with negative thread, covers the mode be threaded connection greatly and shell of tank is connected and fixed, and at shell of tank and the pump housing, greatly cover between be lined with tightening seal washer.
Compared with prior art, the utility model has the advantage of: the lower end of large piston rod is one-body molded check valve, check valve is directly plugged on small piston rod, enormously simplify product structure, and assembling is also very convenient, and the structure of large piston is improved, change original gas from the same mode running through groove and enter, the air inlet of the gas cavity of large piston is separated with giving vent to anger, improve the leak tightness of product, result of use is better, eliminates again the structures such as original permanent seat simultaneously, reduces volume.The utility model has simple and reasonable, easy to assembly, and the feature of good seal performance.
Accompanying drawing explanation
Fig. 1 be the utility model in off position under structural representation;
Fig. 2 be the utility model head cap press down bubble jet do well under structural representation;
Fig. 3 is STRUCTURE DECOMPOSITION figure of the present utility model;
Fig. 4 is the partial enlarged drawing of a-quadrant in Fig. 1;
Fig. 5 is the partial enlarged drawing in B region in Fig. 2.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in Fig. 1 ~ 5, the foam pump of the present embodiment, it comprises the pump housing 1, large lid 2, large piston 3, large piston rod 4, valve piston 5, small piston rod 6, the major parts such as head cap 7 and foamed assembly, the pump housing 1, large lid 2, large piston rod 4, small piston rod 6 and head cap 7 all adopt PP plastics to make, the upper end of the pump housing 1 is provided with the edge 1.1 of evagination, the corresponding annular slot 21 being provided with indent inside the upper end of large lid 2, and outside annular slot 21, be provided with the convex tendon 22 preventing edge slippage, the pump housing 1 with cover 2 greatly and be connected and fixed by the mode of clamping, the lower end inside of large lid 2 is provided with negative thread, the mode that large lid 2 is threaded connection and shell of tank 15 are connected and fixed, and at shell of tank 15 and the pump housing 1, tightening seal washer 14 is lined with between large lid 2, the lower end of the pump housing is suction pipe 9, is provided with pellet seat 10, is inside provided with pellet 101 above suction pipe 9, forms check valve, large piston rod 4 is coaxially arranged on the top of small piston rod 6, spring 11 is supported with between the bottom of small piston rod 6 and the pump housing 1, the vertical section of small piston rod 6 is criss-cross, the middle part of small piston rod 6 is the support ring 6.1 of a circle, obstruction 16 is provided with in the lower end through hole of small piston rod 6, the bottom blocking 16 is provided with the annular groove 161 with valve piston fitted seal, the both sides blocking 16 are provided with connectivity slot 162, valve piston 5 is set on obstruction 16 slidably, valve piston 5 adopts bivalve membrane structure, the large valve lower end of the inside coordinates with the annular groove blocking 16, the middle and lower part of the pump housing 1 forms circular groove 1.2, spring 11 is arranged between the circular groove 1.2 of the pump housing 1 and the support ring 6.1 of small piston rod 6, small piston rod 6 is made to have uptrend all the time,
Large piston 3 is arranged on above the support ring of small piston rod 6, large piston 3 is also adopt bivalve membrane structure, wherein nexine valve 31 longitudinally offers the air channel 32 entering large piston gas cavity 18 for air, the lower end of large piston rod 4 is one-body molded a check valve 41, the tube-in-tube structure of check valve 41 in bottom undergauge, the upper end of small piston rod 6 forms the step groove that the check valve for large piston rod 4 is planted, the lower end of check valve 41 is plugged in step groove to be fixed with small piston rod 6 grafting, large piston 3 is set in the outside of small piston rod 6 and check valve 41, the inner wall lower of the nexine valve 31 of large piston 3 is expanding shape, and be provided with the gap 34 that supplied gas is passed through between small piston rod 6, the upper end sidepiece of check valve 41 is laterally provided with the induction opening 42 coordinated with this gap 34, conical sealing surface 33 is formed outside the upper end of nexine valve 31, the lower end of large piston rod 4 is provided with the bulge loop 43 coordinated with conical sealing surface 33, when large piston rod 4 moves downward, conical sealing surface 33 and the bulge loop 43 of nexine valve 31 offset fitted seal, air channel 32 is closed, gap 34 communicates with induction opening 42 simultaneously, check valve 41 is opened, gas enters gas-liquid mixed chamber 17 large piston rod 4 from the gas cavity 18 of large piston 3, otherwise, the top of small piston rod 6 upward movement and nexine valve 31 under the effect of spring 11 offsets, induction opening 42 is closed, the conical sealing surface 33 of nexine valve 31 is separated with bulge loop 43 simultaneously, gas enters the gas cavity 18 of large piston 3 from the external world, enter for the ease of gas, the upper end of the air channel 32 of the nexine valve 31 of large piston 3 is in the V-arrangement opening be convenient to outside air and entered, in addition, the upper end of large piston rod 4 is provided with foam screen 12 and lower foam screen 13 successively, foam screen 13 is wherein descended to be set in the upper end in the gas-liquid mixed chamber 17 of large piston rod 4, upper foam screen 12 is coaxially arranged on above lower foam screen 13, between large piston rod 4 and head cap 7, the side of head cap 7 offers trumpet-shaped spout 71, be provided with multiple foam hole 72 in the inner end of spout 71, head cap 7 is also arranged with translucent cover 8, play attractive in appearance and protective effect.
Principle of work and use procedure are such: when hand presses head cap 7, large piston rod 4 is driven to move downward, the conical sealing surface 33 of the nexine valve 31 of large piston 3 and the bulge loop 43 of large piston rod 4 lower end offset fitted seal, simultaneously, large piston 3 gas cavity 18 air pressure increases, the elastic force that small piston rod 6 overcomes spring 11 under the promotion of large piston rod 4 moves down the generation gap, bottom 34 with the nexine valve 31 of large piston 3, gas in gas cavity 18 is just by gap 34, induction opening 42 enters into the gas-liquid mixed chamber 17 of large piston rod 4, drive gas-liquid mixture successively by lower foam screen 13, the foam hole 72 of upper foam screen 12 and head cap 7, finally spray from spout 71, when valve piston 5 moves downward, depart from annular groove 161 after the delayed slippage of valve piston 5, liquid in the liquid cavity of the pump housing 1 is under air-flow drives, the gas-liquid mixed chamber of small piston rod 6 is entered into by the connectivity slot 162 blocking 16 both sides, gas-liquid mixture is formed with the gas and vapor permeation in gas cavity 18, for preparing next time, when hand unclamps head cap 7, small piston rod 6 is upward movement under spring 11 acts on, large piston rod 4 is driven to move up, liquid cavity pressure in the pump housing 1 reduces, pellet 101 cannot seal up suction pipe 9, liquid in container enters into the liquid cavity of the pump housing, small piston rod 6 moves simultaneously and offset with the top of nexine valve 31, induction opening 42 is closed by the nexine valve of large piston 3, and large piston rod 4 moves, the conical sealing surface 33 of nexine valve 31 is separated with bulge loop 43, gas enters the gas cavity 18 of large piston 3 from the external world, for preparing next time, cycle event just produces spray action successively.
Claims (7)
1. a foam pump, it comprises the pump housing, large lid, large piston, large piston rod, valve piston, small piston rod, head cap, foamed assembly, large piston rod is coaxially arranged on the top of small piston rod, spring is supported with between the bottom of small piston rod and the pump housing, it is characterized in that: described large piston adopts bivalve membrane structure, nexine valve longitudinally offers the air channel entering large piston gas cavity for air, the lower end of large piston rod is one-body molded a check valve, the lower end of check valve and the upper end grafting of small piston rod are fixed, large piston bush is located at the outside of small piston rod and check valve, the inner wall lower of the nexine valve of large piston is expanding shape, and be provided with the gap that supplied gas is passed through between small piston rod outer wall, the upper end sidepiece of check valve is laterally provided with the induction opening with this free-running fit, conical sealing surface is formed outside the upper end of nexine valve, the lower end of large piston rod is provided with the bulge loop coordinated with conical sealing surface, when large piston rod moves downward, the conical sealing surface of nexine valve and bulge loop offset fitted seal, air channel is closed, this gap communicates with induction opening simultaneously, one-way valve opens, gas enters gas-liquid mixed chamber large piston rod from the gas cavity of large piston, otherwise, the top of small piston rod upward movement and nexine valve under the action of the spring offsets, induction opening is closed, the conical sealing surface of nexine valve is separated with bulge loop simultaneously, gas enters the gas cavity of large piston from the external world.
2. foam pump according to claim 1, it is characterized in that: the vertical section of described small piston rod is criss-cross, the upper end of small piston rod forms the step groove that the check valve for large piston rod is planted, check valve is the tube-in-tube structure of bottom undergauge, the lower end of check valve is plugged in step groove, and induction opening is opened on the cascaded surface of check valve undergauge.
3. foam pump according to claim 1, is characterized in that: the upper end of the air channel in the nexine valve of described large piston is in the V-arrangement opening be convenient to outside air and entered.
4. foam pump according to claim 1, it is characterized in that: the upper end of described large piston rod is provided with foam screen and lower foam screen successively, wherein descend foam screen to be set in the upper end in the gas-liquid mixed chamber of large piston rod, upper foam screen is coaxially arranged on above lower foam screen, between large piston rod and head cap.
5. foam pump according to claim 1, is characterized in that the side of described head cap offers trumpet-shaped spout, is provided with multiple foam hole in the inner end of spout.
6. the foam pump according to the arbitrary claim of claim 1 to 5, it is characterized in that: the upper end of the described pump housing is provided with the edge of evagination, the corresponding annular slot being provided with indent inside the upper end of large lid, and outside annular slot, being provided with the convex tendon preventing edge slippage, the pump housing is connected and fixed by the mode of clamping with large lid.
7. foam pump according to claim 6, is characterized in that: the lower end inside of described large lid is provided with negative thread, covers the mode be threaded connection greatly and shell of tank is connected and fixed, and at shell of tank and the pump housing, greatly cover between be lined with tightening seal washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499009.7U CN204056655U (en) | 2014-09-01 | 2014-09-01 | A kind of foam pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499009.7U CN204056655U (en) | 2014-09-01 | 2014-09-01 | A kind of foam pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204056655U true CN204056655U (en) | 2014-12-31 |
Family
ID=52198215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420499009.7U Active CN204056655U (en) | 2014-09-01 | 2014-09-01 | A kind of foam pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204056655U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346831A (en) * | 2015-10-21 | 2016-02-24 | 深圳市好年华模具有限公司 | Liquid soap bottle and forming mold thereof |
| CN110040350A (en) * | 2019-03-27 | 2019-07-23 | 宁波圣捷喷雾泵有限公司 | A kind of foam pump |
| CN110451072A (en) * | 2019-09-06 | 2019-11-15 | 浙江晟祺实业有限公司 | A kind of Novel cosmetic container |
-
2014
- 2014-09-01 CN CN201420499009.7U patent/CN204056655U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346831A (en) * | 2015-10-21 | 2016-02-24 | 深圳市好年华模具有限公司 | Liquid soap bottle and forming mold thereof |
| CN110040350A (en) * | 2019-03-27 | 2019-07-23 | 宁波圣捷喷雾泵有限公司 | A kind of foam pump |
| CN110040350B (en) * | 2019-03-27 | 2021-06-04 | 宁波圣捷喷雾泵有限公司 | Foam pump |
| CN110451072A (en) * | 2019-09-06 | 2019-11-15 | 浙江晟祺实业有限公司 | A kind of Novel cosmetic container |
| CN110451072B (en) * | 2019-09-06 | 2024-03-12 | 浙江晟祺实业有限公司 | Novel cosmetic container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |