CN202492046U - foam liquid dispenser - Google Patents

Abstract

The utility model provides a foam type liquid distributor, including the liquid container connector, fix the pump epitheca below the liquid container connector, lie in pump epitheca below and with pump epitheca connected interior compression pipe and external compression pipe, set up the upper liquid check valve between pump epitheca and interior compression pipe, set up respectively in pump under inner shell and pump under outer shell under inner compression pipe and external compression pipe, form the mixing chamber under the pump under the inner shell, set up the lower liquid check valve between pump under inner shell and mixing chamber, lie in the spring of lower liquid check valve below and lie in the mixing chamber, and the outer shell lower extreme of pump is the mixture export; a liquid storage cavity is formed in the inner compression pipe, an air cavity is formed in the outer compression pipe, an air flow channel is arranged between the lower pump inner shell and the lower pump outer shell to communicate the air cavity with the mixing chamber, and a mixture outlet at the lower end of the lower pump outer shell is a single channel for air in the air cavity to enter and exit from the outside.

Description

foam liquid dispenser

technical field

The utility model relates to a foam type liquid distributor. the

Background technique

Soap or disinfectant dispensers are widely used in public toilets, providing a good guarantee for people's hygiene. Common soap or disinfectant dispensers output liquid soap or disinfectant, which will drip when in use, causing waste, and will increase cleaning water and prolong hand washing time, which cannot be achieved For the purpose of environmental protection, therefore, a foam-type liquid dispenser has been developed on the market. The principle is to use the sufficient mixing of air and liquid soap or disinfectant to generate foam-type liquid. How to achieve the full mixing of air and liquid soap or disinfectant, so as to achieve the full use of soap or disinfectant, is a common subject of research in the industry.

Contents of the invention

The purpose of the utility model is to provide a foam type liquid dispenser which can make full use of soap liquid or disinfectant.

In order to achieve the above object, the utility model provides a foam type liquid dispenser, which includes a liquid container connector, a pump upper case fixed under the liquid container connector, an inner compression tube located below the pump upper case and connected to the pump upper case and the outer compression tube, the upper liquid one-way valve arranged between the pump upper shell and the inner compression tube, the pump lower inner shell and the lower pump outer shell respectively arranged under the inner compression tube and the outer compression tube, forming the lower inner shell of the pump The lower mixing chamber, the lower liquid one-way valve arranged between the pump lower inner casing and the mixing chamber, the spring located below the lower liquid one-way valve and in the mixing chamber, and the lower end of the pump lower casing is the mixture outlet; A liquid storage chamber is formed in the inner compression tube, an air chamber is formed in the outer compression tube, and an air flow channel is provided between the pump lower inner casing and the pump lower casing to communicate with the air chamber and the mixing chamber, and the mixture at the lower end of the pump lower casing The outlet is a single channel through which the air in the air chamber enters and exits from the outside.

As a preferred embodiment of the above-mentioned technical solution, the embodiment of the foam-type liquid dispenser of the present invention further includes some or all of the following technical features:

Preferably, the upper shell of the pump is fixed on the liquid container connection head by snap-fit positioning assembly, and is sealed by interference fit.

As a preference, the upper shell of the pump is provided with an upper inner undercut groove and an upper outer undercut groove, the inner compression tube is fixed on the upper inner undercut groove of the pump upper shell, and the outer compression tube is fixed on the upper outer undercut groove of the pump upper shell The groove, the inner compression tube and the outer compression tube are all sealed in the upper shell of the pump by the elastic interference fit of the material itself.

Preferably, the lower inner shell of the pump is fastened and fixed and nested on the lower outer shell of the pump.

As a preference, the lower shell of the pump is provided with a lower outer undercut groove, the inner compression tube is fixed in the lower outer undercut groove, the lower inner casing of the pump is provided with a lower inner undercut groove, the outer compression tube is fixed with the lower outer undercut groove, and the inner compression tube is fixed in the lower outer undercut groove. Both the compression tube and the external compression tube utilize the elasticity of their material to be respectively interference-fit and sealed to the lower inner shell and the lower outer shell of the pump.

Preferably, the foam-type soap or disinfectant dispenser is provided with a filter, located below the mixing chamber, and built into the mixture outlet at the lower end of the pump lower housing.

As a preference, the foam type soap or disinfectant dispenser is provided with a fixed block above and a sliding block below, the pump upper case is fixed on the fixed block, the pump lower case is fixed on the on the slider.

Preferably, the foam-type soap or disinfectant dispenser is provided with a cam, and the sliding block is connected to the cam.

Preferably, the foam-type soap or disinfectant dispenser is provided with a nozzle cover embedded in the mixture outlet at the lower end of the pump lower housing, and the nozzle cover has an inverted conical through hole.

The mixture outlet at the lower end of the pump lower shell of the foam-type liquid distributor of the utility model is a single channel through which the air in the air chamber enters and exits from the outside. When the pump lower shell moves upward, the air in the air chamber is compressed to fully Discharge, and the flow rate is large, the air and liquid soap or disinfectant can be fully mixed in the mixing chamber, so that the soap or disinfectant can be used to the maximum.

Description of drawings

Fig. 1 is the working principle diagram of the foam type liquid dispenser of the present utility model;

Fig. 2 is the assembly diagram of the foam type liquid dispenser shown in Fig. 1;

Fig. 3 is a cross-sectional view of the foam-type liquid dispenser shown in Fig. 1 .

Explanation of reference numbers

1 liquid container connector 2 pump upper case 21 upper inner undercut groove 22 Upper and outer undercut groove 3 internal compression tubes 30 storage chamber 4 external compression tubes 40 air chamber 5 Pump Lower Inner Shell 51 undercut groove 6 pump lower housing 61 lower outer undercut groove 62 fixed part 7 nozzle cover 8 upper liquid check valve 9 lower liquid check valves 10 springs 11 mixing chamber 12 air flow channels 13 filter 14 Mixture outlet 15 Fixtures 16 fixed blocks 17 sliders 18 cam 19 bottles the

Detailed ways

The foam type liquid dispenser of the present invention will be further elaborated below in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, the foam-type liquid dispenser of the present invention is connected in sequence from top to bottom: liquid container connector 1, pump upper shell 2, inner compression tube 3 and outer compression tube 4, pump The lower inner casing 5, the lower casing 6 of the pump, and the nozzle cover 7. The top of the liquid container connection head 1 is connected with a soap liquid or a disinfectant liquid container. The pump upper shell 2 is fixed under the liquid container connector 1 by fastening and positioning assembly, and is sealed by interference fit; the lower end of the pump upper shell 2 is provided with an upper inner undercut groove 21 and an upper outer undercut groove 22, an inner compression tube 3 and an outer compression tube 4 are fastened and fixed with the upper inner undercut groove 21 and the upper outer undercut groove 22 respectively, and the inner compression tube 3 and the outer compression tube 4 are sealed on the pump upper shell by the elastic interference fit of their own materials 2. An upper liquid check valve 8 is set between the inverted funnel-shaped pump upper shell 2 and the inner compression tube 3, and the upper liquid check valve 8 is fixedly connected to the pump upper shell 2 for controlling soap liquid and disinfectant Enter the inner compression tube 3 from top to bottom.

The pump lower inner shell 5 is buckled and fixed and nested on the funnel-shaped pump lower shell 6. The pump lower shell 6 is provided with a lower outer undercut groove 61, and the inner compression tube 3 is fixed in the lower outer undercut groove 61. The pump The lower inner shell 5 is provided with a lower inner undercut groove 51, and the outer compression tube 4 is fixed with a lower outer undercut groove 61. Both the inner compression tube 3 and the outer compression tube 4 are respectively sealed in the lower inner shell of the pump by interference fit using the elasticity of their own materials. 5 and pump lower housing 6. A liquid storage chamber 30 is formed in the inner compression tube 3 , and an air chamber 40 is formed in the outer compression tube 4 .

A lower liquid one-way valve 9 is built in the middle channel of the lower inner shell 5 of the pump, and a spring 10 is provided between the middle channel of the lower inner shell 5 of the pump and the middle channel of the lower shell 6 of the pump, and the spring 10 is located at the lower liquid one-way valve 9 The lower part and abuts against the fixing part 62 of the lower casing 6 of the pump. A mixing chamber 11 is arranged around the spring 10, an air flow channel 12 is provided between the pump lower inner casing 5 and the lower pump casing 6 to connect the air chamber 40 and the mixing chamber 11; a filter screen 13 is provided below the mixing chamber 11, The filter screen 13 is built in the lower end of the pump lower casing 6, the lower end of the pump lower casing 6 is in the shape of a round hole, and is used as the mixture outlet 14, the nozzle cover 7 is connected to the lower end of the pump lower casing, and the nozzle cover 7 is embedded in the lower end of the pump lower casing 6 The mixture outlet 14, the through hole of the nozzle cover 7 communicates with the mixture outlet 14, the nozzle cover 7 has an inverted conical through hole, which is used to improve the shape of foam soap or disinfectant spit, and can avoid dust from entering.

One side of the foam type soap or disinfectant dispenser is provided with a fixing device 15, and a fixing block 16 is arranged above the fixing device 15, and the fixing block 16 is used to fix the pump upper casing 2; a cam 18 is arranged below the fixing device 15, and the cam 18 is connected with the lower casing 6 of the pump through a sliding block 17 . When in use, first put the soap or disinfectant into a suitable bottle 19 (or other container), then fix the foam type soap or disinfectant dispenser with the bottle 19, and then install the above-mentioned whole on the designated automatic Or on the manual machine, drive the slide block 17 to reciprocate up and down with a hand sensor or a manual device to obtain foam soap or disinfectant.

When the hand is placed in the sensing area of the automatic sensing device, the device receives the signal and starts to work: (1) The cam 18 rotates (or other manual mechanism) to drive the sliding block 17 to move upward, and the sliding block 17 forces the pump lower casing 6 to move upward, and the inner casing 6 moves upward. The compression tube 3 and the external compression tube 4 are shortened, the air in the liquid storage chamber 30 and the air chamber 40 is compressed, the upper liquid check valve 8 is closed by the air pressure, and the lower liquid check valve 9 is opened by the air pressure. , the spring 10 is compressed, most of the air flows into the mixing chamber 11 from the opening of the lower liquid check valve 9, and a small part flows into the mixing chamber 11 from the air flow channel 12, and then flows out to the outside through the mixture outlet 14; (2) Remove the external force, the sliding block 17 moves to a certain stroke and stops, the inner compression tube 3 and the outer compression tube 4 are stretched and recovered, the spring 10 resets so that the lower liquid one-way valve 9 is closed, and the liquid storage chamber 30 and the air chamber 40 are in a short period of time. A vacuum is formed within a time, the upper liquid check valve 8 is opened, the liquid soap or disinfectant flows into the liquid storage chamber 30, and the outside air gradually enters the air chamber 40 through the mixture outlet 14 to reach equilibrium; (3) pump down The shell 6 is moved upward by external force again, the lower liquid check valve 9 is opened by the air pressure, the liquid in the liquid storage chamber 30 and the air in the air chamber 40 enter the mixing chamber 11 through the opening of the lower liquid check valve 9, and In the mixing chamber 11, the liquid soap or disinfectant and air are fully mixed to become foamy, and flow out through the filter screen 13 through the mixture outlet 14 to the nozzle cover 7 outlet. The arrows in Fig. 1 respectively represent the flow directions of liquid soap or disinfectant and air, while the arrows in Fig. 3 only represent the flow directions of air.

The mixture outlet 14 at the lower end of the pump lower shell 6 is a single channel through which the air in the air chamber 40 enters and exits from the outside. When the pump lower shell 6 moves upward, the air in the air chamber 40 is compressed and can be fully discharged, and The flow rate is high, and the air and liquid soap or disinfectant can be fully mixed in the mixing chamber 11, so that the soap or disinfectant can be utilized to the maximum. And the air flow channel 12 is used to connect the air chamber 40 and the mixing chamber 11, and flexibly cooperates with the liquid one-way valve 9, so that no additional air control valve is needed, which saves cost and simplifies the structure.

The above description is a detailed description of the preferred feasible embodiments of the present utility model, but the embodiments are not used to limit the scope of patent application of the present utility model. All equivalent changes or modifications completed under the technical spirit disclosed in the utility model, All should belong to the patent scope covered by the utility model.

Claims (9)

1. foam type liquid distributor; Comprise: the liquid container connector, be fixed on the pump upper casing of liquid container connector below, be positioned at pump upper casing below and with the pump upper casing bonded assembly compression pipe and the external pressure draw; Be arranged at the last liquid check valve between pump upper casing and the interior compression pipe; Inner casing and pump lower casing under the pump of compression pipe and external pressure draw below in being separately positioned on are formed on the blending box below the inner casing under the pump, are arranged at the following liquid check valve between the inner casing and blending box under the pump; Be positioned at following liquid check valve below and be positioned at the spring within the blending box, and pump lower casing lower end is a mixture outlet; Form the reservoir compartment chamber in said in the compression pipe; Form air chamber in the said external pressure draw; Have airflow path under the pump between inner casing and the pump lower casing to be communicated with air chamber and blending box, it is characterized in that: the mixture outlet of said pump lower casing lower end is the single passage that the air in the air chamber passes in and out from the external world.

2. foam type liquid distributor according to claim 1 is characterized in that: said pump upper casing adopts and fastens the location mount at the liquid container connector, and utilizes interference fit seal.

3. foam type liquid distributor according to claim 1; It is characterized in that: back-off groove and last outer back-off groove in said pump upper casing is provided with; Interior compression pipe is fixed in back-off groove in the going up of pump upper casing; The external pressure draw is fixed on the outer back-off groove of going up of pump upper casing, the interior compression pipe and the external pressure draw all the elasticity interference fit seal of the material of utilization own in the pump upper casing.

4. foam type liquid distributor according to claim 1 is characterized in that: inner casing is fastened and is nested on the pump lower casing under the said pump.

5. foam type liquid distributor according to claim 4; It is characterized in that: said pump lower casing is provided with down outer back-off groove; The external pressure draw is fixed in outer back-off groove down; Back-off groove in inner casing is provided with down under the pump, the fixing down interior back-off groove of interior compression pipe, the interior compression pipe and the external pressure draw be elasticity difference interference fit seal inner casing and pump lower casing under pump of the material of utilization own all.

6. foam type liquid distributor according to claim 1 is characterized in that: further, be provided with filtering net, be positioned at the below of said blending box, and be built in the mixture outlet of said pump lower casing lower end.

7. foam type liquid distributor according to claim 1 is characterized in that: further, be provided with up fixed block and below sliding shoe, said pump upper casing is fixed on the said fixed block, said pump lower casing is fixed on the said sliding shoe.

8. foam type liquid distributor according to claim 7 is characterized in that: further, be provided with cam, said sliding shoe is connected on the said cam.

9. foam type liquid distributor according to claim 1 is characterized in that: further, be provided with the mixture outlet that nozzle cover is embedded in said pump lower casing lower end, said nozzle cover has obconic through hole.

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