阅读说明：本技术 一种脉动式手动皂液器 (Pulsation type manual soap dispenser ) 是由 李作明 唐伟 朱灿锋 钱和胜 于 2020-08-24 设计创作，主要内容包括：本发明提出了一种脉动式手动皂液器,包括壳体,所述壳体设有皂液存储部及用于从皂液存储部抽取皂液的按压泵头,所述壳体上设有皂液流道,所述按压泵头的出液口与皂液流道相连,所述皂液流道的出口处设有硅胶膜片,所述硅胶膜片上设有狭缝；所述皂液流道位于硅胶膜片的上游位置处上设有弹性容积膨胀装置,所述弹性容积膨胀装置的膨胀容积小于按压泵头单次按压时的出液体积。本发明具有皂液出口不易留有残余皂液,避免或减少皂液结块的优点。(The invention provides a pulsating manual soap dispenser, which comprises a shell, wherein the shell is provided with a soap liquid storage part and a pressing pump head for extracting soap liquid from the soap liquid storage part, the shell is provided with a soap liquid flow passage, a liquid outlet of the pressing pump head is connected with the soap liquid flow passage, an outlet of the soap liquid flow passage is provided with a silica gel diaphragm, and the silica gel diaphragm is provided with a slit; the soap flow channel is provided with an elastic volume expansion device at the upstream position of the silica gel membrane, and the expansion volume of the elastic volume expansion device is smaller than the liquid outlet volume of the pressing pump head during single pressing. The invention has the advantages that residual soap liquid is not easy to remain at the soap liquid outlet, and the caking of the soap liquid is avoided or reduced.)

1. The utility model provides a manual soap lye ware of pulsed, includes the casing, the casing is equipped with soap lye storage part, be equipped with in the casing and be used for following the pressing pump head of soap lye storage part extraction soap lye, its characterized in that: the shell is provided with a soap flow passage, a liquid outlet of the pressing pump head is connected with the soap flow passage, a detachable silica gel membrane is arranged at an outlet of the soap flow passage, and a slit is formed in the silica gel membrane; the liquid outlet is vertically upwards or obliquely upwards connected to the soap liquid flow passage, an elastic volume expansion device is arranged at the upstream position of the soap liquid flow passage, when the pressing pump head presses downwards, the pressure between the liquid outlet and the soap liquid flow passage rises to enable the elastic volume expansion device to expand and accumulate pressure in the direction connected with the atmosphere, so that the volume of the liquid outlet and the soap liquid flow passage is increased at the same time when the pressure between the liquid outlet and the soap liquid flow passage rises to the slit opening pressure threshold value of the silica gel diaphragm, the soap liquid is pumped out in the process of pressing the pressing pump head downwards and pushes the silica gel diaphragm to deform to open the slit to enable the soap liquid to be sprayed out from the soap liquid flow passage through the silica gel diaphragm, when the pressing pump head presses downwards to the bottom to stop a single pump liquid stroke, the elastic volume expansion device recovers the original shape under the elasticity of the elastic volume expansion device to spray out the surplus soap liquid generated by the, at the moment, the silica gel membrane loses the pressure between the liquid outlet and the soap flow channel, so that the silica gel membrane is restored to the original state under the elasticity of the silica gel membrane and closes the slit; the expansion volume of the elastic volume expansion device is smaller than the liquid outlet volume of the pressing pump head during single pressing.

2. The pulsating manual soap dispenser as in claim 1, wherein: the back end of the soap liquid flow channel, which is connected with the liquid outlet, extends vertically upwards or extends obliquely upwards to the highest point, and the end part of the soap liquid flow channel is arranged close to the highest point and is obliquely downwards or vertically downwards, and the silica gel membrane is positioned at the end of the soap liquid flow channel, which is obliquely downwards or vertically downwards, and is arranged close to the end part of the soap liquid flow channel.

3. The pulsating manual soap dispenser as in claim 1, wherein: the slit opening pressure threshold value of the silica gel diaphragm is larger than the pressure threshold value for maintaining the slit opening state.

4. The pulsating manual soap dispenser as in claim 1, wherein: an expansion window is arranged at the upstream position of the soap liquid flow channel, which is provided with the silica gel membrane, and the elastic volume expansion device is an elastic rubber membrane arranged on the expansion window.

5. The pulsating manual soap dispenser as in claim 4, wherein: when the soap liquid flow channel is obliquely arranged, the opening of the expansion window faces the ground.

6. The pulsating manual soap dispenser as in claim 4, wherein: and a plurality of uniformly distributed one-way expansion columns are adhered to one surface of the elastic rubber film, which is back to the inner cavity of the soap liquid flow channel, and the one-way expansion columns are closely abutted against each other before the elastic rubber film is subjected to expansion deformation.

7. The pulsating manual soap dispenser as in claim 6, wherein: the cross section of the unidirectional expansion column is circular, isosceles triangle, square or hexagon.

8. The pulsating hand soap dispenser as in claim 1 or 2, wherein: the silica gel membrane is clamped at the outlet of the soap liquid flow passage through a clamping ring.

Technical Field

The invention relates to the field of soap dispensers, in particular to a pulsating manual soap dispenser.

Background

The manual soap dispenser generally provides soap liquid for users in a manual pressing mode, and the existing manual soap dispenser easily causes water evaporation of the soap liquid to generate caking and adhere to the inner wall of a soap liquid outlet due to the fact that a soap liquid outlet is generally of a simple pipeline type, so that the blockage of the soap liquid outlet is caused, the extrusion flow of the soap liquid is seriously influenced, and soap liquid blocks caked on the inner wall of the soap liquid outlet are easily flushed out of the soap liquid outlet along with the soap liquid, so that the solidified soap liquid block and the liquid soap liquid are taken by the user to scrub the hands and other places together, the liquid soap liquid can foam quickly and remove stains, the solidified soap liquid block can be dissolved only after absorbing moisture, so that the soap liquid block is easy to adhere to the skin and is difficult to scrub, inconvenience is brought to the use of a user, and the use experience of the user is seriously influenced.

Disclosure of Invention

Based on the above problems, the present invention aims to provide a pulsating manual soap dispenser, which is not easy to leave residual soap at a soap dispenser and can avoid or reduce the caking of soap.

Aiming at the problems, the following technical scheme is provided: a pulsating manual soap dispenser comprises a shell, wherein the shell is provided with a soap liquid storage part, a pressing pump head for extracting soap liquid from the soap liquid storage part is arranged in the shell, a soap liquid flow passage is arranged on the shell, a liquid outlet of the pressing pump head is connected with the soap liquid flow passage, a detachable silica gel membrane is arranged at an outlet of the soap liquid flow passage, and a slit is formed in the silica gel membrane; the liquid outlet is vertically upwards or obliquely upwards connected to the soap liquid flow passage, an elastic volume expansion device is arranged at the upstream position of the soap liquid flow passage, when the pressing pump head presses downwards, the pressure between the liquid outlet and the soap liquid flow passage rises to enable the elastic volume expansion device to expand and accumulate pressure in the direction connected with the atmosphere, so that the volume of the liquid outlet and the soap liquid flow passage is increased at the same time when the pressure between the liquid outlet and the soap liquid flow passage rises to the slit opening pressure threshold value of the silica gel diaphragm, the soap liquid is pumped out in the process of pressing the pressing pump head downwards and pushes the silica gel diaphragm to deform to open the slit to enable the soap liquid to be sprayed out from the soap liquid flow passage through the silica gel diaphragm, when the pressing pump head presses downwards to the bottom to stop a single pump liquid stroke, the elastic volume expansion device recovers the original shape under the elasticity of the elastic volume expansion device to spray out the surplus soap liquid generated by the, at the moment, the silica gel membrane loses the pressure between the liquid outlet and the soap flow channel, so that the silica gel membrane is restored to the original state under the elasticity of the silica gel membrane and closes the slit; the expansion volume of the elastic volume expansion device is smaller than the liquid outlet volume of the pressing pump head during single pressing.

In the structure, according to the problem that the residual soap liquid in the existing soap liquid outlet is easy to agglomerate, the silicone membrane sheet in the prior art is used as an opening and closing element of the soap liquid flow passage and is arranged in the soap liquid flow passage (the silicone membrane sheet structure refers to the structure of a bottle cap of a squeal sports beverage produced by farmer mountain spring), as the working condition of the silicone membrane sheet needs to meet certain pressure, a slit can be opened, the slit is opened under pressure, the soap liquid is sprayed out in a spraying state, and the slit can be closed in time and quickly cut off the soap liquid when the pressure is reduced to a certain threshold value, the situation that the adhesion and accumulation of the soap liquid at the outlet of the soap liquid flow passage cause the evaporation of water and the hardening and agglomeration is avoided; however, in the actual research and test process, the requirement that the soap solution is not completely adhered cannot be met by the silica gel film in the prior art, and the specific reasons are as follows: the pressure conditions of the using positions of the silica gel membranes are different, when the silica gel membrane is used for a common beverage plastic bottle, the slit is opened by increasing the pressure in the bottle by extruding the bottle body, after the slit of the silica gel membrane is opened, the pressure for opening the slit is kept to be smaller than the pressure at the moment of opening the slit, therefore, the pressure can be accumulated by utilizing the self space of the bottle body when the bottle body is extruded, the slit is kept to be continuously opened by the accumulated pressure, after the accumulated pressure is smaller than the pressure for maintaining the opening of the slit, the slit can be instantly closed, if the slit needs to be opened for the second time, the bottle body needs to be extruded again to increase the accumulated pressure, but when the silica gel pump is used for a soap dispenser, as the condition for accumulating pressure does not exist between the liquid outlet of the pump head and a soap flow passage, under the condition that the soap liquid is filled in the liquid outlet and the soap, the soap is discharged from the slit of the silicone membrane, and there is no pressure difference between the opening moment of the silicone membrane and the opening state of the silicone membrane, which can cause the silicone membrane to reset to drive the slit to close after the pressure accumulation is reduced, because the volumes of the liquid outlet and the soap flow channel cannot be adjusted, the soap can continuously extrude a small amount of soap from the slit under the resetting and extrusion of the silicone membrane, so that the soap is not easily intercepted, and the soap is accumulated on the outer side of the silicone membrane to cause the phenomenon of drying and caking The volume of the compressed space (namely the compression sensitivity is insufficient), and meanwhile, the compressed space is an independent space body, and the space body is internally provided with compressible air, so that the situation that the volume of the air in the space body is changed due to the change of temperature and air pressure, and unstable factors are generated to cause liquid leakage and leakage of the silica gel membrane is caused; after a large number of tests are carried out, a second scheme is selected, namely, a condition which is communicated with the atmosphere and can change the volume is created, the liquid leakage and leakage conditions of the silicone membrane can be effectively solved, which are caused by the change of temperature and air pressure, the expansion volume of the elastic volume expansion device is smaller than the liquid outlet volume of the pressing pump head during single pressing, and the silicone membrane can be opened under the premise that the liquid outlet volume of the soap liquid of the pressing pump head during single pressing meets the soap liquid volume required by the expansion and pressure accumulation of the elastic volume expansion device; the liquid outlet is connected to the soap lye flow passage in a vertical upward or inclined upward manner, so that bubbles in the liquid outlet and the soap lye flow passage can float upward and be discharged or are discharged first, air in the liquid outlet and the soap lye flow passage can be discharged as far as possible, and the liquid leakage condition of the liquid leakage of the silica gel membrane caused by the change of temperature and air pressure can be reduced.

The invention is further arranged that one end of the soap liquid flow channel back to the liquid outlet extends vertically upwards or extends obliquely upwards to the highest point, the end part of the soap liquid flow channel is arranged close to the highest point and is obliquely downwards or vertically downwards, and the silica gel membrane is positioned at one end of the soap liquid flow channel, which is obliquely downwards or vertically downwards, and is arranged close to the end part of the soap liquid flow channel.

In the structure, the bubbles which accidentally enter the soap liquid flow passage can be accumulated at the highest point of the soap liquid flow passage, so that the bubbles can be discharged first when the slit of the silica gel membrane is opened.

The invention is further arranged that the slit opening pressure threshold of the silica gel membrane is greater than the pressure threshold for maintaining the slit open state.

In the above structure, the characteristic that the slit opening pressure threshold of the silica gel diaphragm is larger than the pressure threshold for maintaining the slit opening state is that the silica gel diaphragm is in the prior art.

The invention is further arranged that an expansion window is arranged at the upstream position of the soap liquid flow passage where the silica gel membrane is arranged, and the elastic volume expansion device is an elastic rubber membrane arranged on the expansion window.

In the structure, the expansion window is preferably arranged at a position close to the silica gel membrane, so that the pushing force of the elastic rubber membrane on the soap liquid is more sensitive after the elastic rubber membrane is expanded outwards and pressure is accumulated and then the influence of the soap liquid in the soap liquid flow channel due to fluid resistance is reduced.

The invention is further arranged such that the opening of the expansion window faces the ground when the soap flow passage is inclined.

In the structure, the bubble in the soap liquid can be prevented from gathering in the elastic rubber film due to upward bulging when the elastic rubber film expands, and the bubble in the soap liquid can be guided to gather towards the highest position of the soap liquid flow passage.

The invention is further arranged that one surface of the elastic rubber film, which is back to the inner cavity of the soap liquid flow channel, is adhered with a plurality of uniformly distributed one-way expansion columns, and the one-way expansion columns are arranged closely and mutually abutted before the elastic rubber film expands and deforms.

In the structure, the unidirectional expansion columns are radially separated from each other and are expanded by the spacing distance when the elastic rubber film expands and deforms and protrudes outwards, so that the expansion of the elastic rubber film is not restricted, after the pressing pump head is pressed downwards, the elastic rubber film extrudes the soap liquid which is stored when the elastic rubber film expands under the action of the elasticity of the elastic rubber film out of the slit, the liquid outlet and the soap liquid flow passage have certain probability negative pressure when the pressing pump head is reset or the pressing pump head is not pressed again for a long time, the elastic rubber film is sunken towards the inner wall direction of the soap liquid flow passage, the unidirectional expansion columns can be mutually extruded and abutted when the elastic rubber film is sunken towards the inner wall direction of the soap liquid flow passage to restrict the inward concave deformation of the elastic rubber film, and therefore, the soap liquid volume which is required for the elastic rubber film to restore to the pressure storage state is increased when the pressing pump head is pressed again when the liquid outlet and the soap liquid flow passage are sunken, the problem that the liquid cannot be discharged after pressing is easily induced.

The invention is further arranged that the cross section of the unidirectional expansion column is circular, isosceles triangle, square or hexagon.

In the above-mentioned structure, the preferred circular of one-way expansion post cross-section is cellular arrangement each other, can produce certain space between the circular one-way expansion post is adjacent and hold dust impurity, reduces between the one-way expansion post because of there being dust impurity and cause one-way expansion post can't draw close each other and lead to appearing influencing the elastic rubber membrane and reset the possibility not in place.

The invention is further arranged that the silica gel membrane is clamped at the outlet of the soap flow channel through a clamping ring.

In the structure, the silicon rubber diaphragm is convenient to replace when damaged.

The invention has the beneficial effects that: according to the problem that soap liquid remained in an existing soap liquid outlet is prone to caking, a silicon membrane sheet in the prior art is arranged in a soap liquid flow channel as an opening and closing element of the soap liquid flow channel (the structure of the silicon membrane sheet refers to the structure of a bottle cap of a Shai sports beverage produced by farmer mountain spring), as the working condition of the silicon membrane sheet needs to meet certain pressure, a slit can be opened, the slit is opened under pressure, the soap liquid is sprayed out in a spraying state, and the slit can be closed in time to cut off the soap liquid rapidly when the pressure is reduced to a certain threshold value, the situation that the adhesion and accumulation of the soap liquid at the outlet of the soap liquid flow channel cause water evaporation and hardening caking is avoided; however, in the actual research and test process, the requirement that the soap solution is not completely adhered cannot be met by the silica gel film in the prior art, and the specific reasons are as follows: the pressure conditions of the using positions of the silica gel membranes are different, when the silica gel membrane is used for a common beverage plastic bottle, the slit is opened by increasing the pressure in the bottle by extruding the bottle body, after the slit of the silica gel membrane is opened, the pressure for opening the slit is kept to be smaller than the pressure at the moment of opening the slit, therefore, the pressure can be accumulated by utilizing the self space of the bottle body when the bottle body is extruded, the slit is kept to be continuously opened by the accumulated pressure, after the accumulated pressure is smaller than the pressure for maintaining the opening of the slit, the slit can be instantly closed, if the slit needs to be opened for the second time, the bottle body needs to be extruded again to increase the accumulated pressure, but when the silica gel pump is used for a soap dispenser, as the condition for accumulating pressure does not exist between the liquid outlet of the pump head and a soap flow passage, under the condition that the soap liquid is filled in the liquid outlet and the soap, the soap is discharged from the slit of the silicone membrane, and there is no pressure difference between the opening moment of the silicone membrane and the opening state of the silicone membrane, which can cause the silicone membrane to reset to drive the slit to close after the pressure accumulation is reduced, because the volumes of the liquid outlet and the soap flow channel cannot be adjusted, the soap can continuously extrude a small amount of soap from the slit under the resetting and extrusion of the silicone membrane, so that the soap is not easily intercepted, and the soap is accumulated on the outer side of the silicone membrane to cause the phenomenon of drying and caking The volume of the compressed space (namely the compression sensitivity is insufficient), and meanwhile, the compressed space is an independent space body, and the space body is internally provided with compressible air, so that the situation that the volume of the air in the space body is changed due to the change of temperature and air pressure, and unstable factors are generated to cause liquid leakage and leakage of the silica gel membrane is caused; after a large number of tests are carried out, a second scheme is selected, namely, a condition which is communicated with the atmosphere and can change the volume is created, the liquid leakage and leakage conditions of the silicone membrane can be effectively solved, which are caused by the change of temperature and air pressure, the expansion volume of the elastic volume expansion device is smaller than the liquid outlet volume of the pressing pump head during single pressing, and the silicone membrane can be opened under the premise that the liquid outlet volume of the soap liquid of the pressing pump head during single pressing meets the soap liquid volume required by the expansion and pressure accumulation of the elastic volume expansion device; the liquid outlet is connected to the soap lye flow passage in a vertical upward or inclined upward manner, so that bubbles in the liquid outlet and the soap lye flow passage can float upward and be discharged or are discharged first, air in the liquid outlet and the soap lye flow passage can be discharged as far as possible, and the liquid leakage condition of the liquid leakage of the silica gel membrane caused by the change of temperature and air pressure can be reduced.

Drawings

Fig. 1 is a general framework diagram of the present invention.

Fig. 2 is a schematic view of the elastic volume expansion device of the present invention.

Fig. 3 is a schematic view of the elastic volume expansion device of the present invention in full section.

The reference numbers in the figures mean: 10-a housing; 11-a soap liquid storage; 12-pressing the pump head; 121-a liquid outlet; 13-a soap flow channel; 131-an expansion window; 132-an outlet; 14-a silica gel membrane; 141-a slit; 142-a snap ring; 15-an elastic volume expansion device; 151-elastic rubber film; 152-unidirectional expansion column.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 3, a pulsating manual soap dispenser as shown in fig. 1 to 3 includes a housing 10, the housing 10 is provided with a soap liquid storage portion 11, a pressing pump head 12 for extracting soap liquid from the soap liquid storage portion 11 is arranged in the housing 10, the housing 10 is provided with a soap liquid flow passage 13, a liquid outlet 121 of the pressing pump head 12 is connected to the soap liquid flow passage 13, an outlet 132 of the soap liquid flow passage 13 is provided with a detachable silicone membrane 14, and the silicone membrane 14 is provided with a slit 141; the liquid outlet 121 is connected to the soap liquid flow passage 13 in a vertically upward or obliquely upward manner, an elastic volume expansion device 15 is arranged at the upstream position of the soap liquid flow passage 13 on the silica gel diaphragm 14, when the pump head 12 is pressed down, the pressure between the liquid outlet 121 and the soap liquid flow passage 13 rises to enable the elastic volume expansion device 15 to expand and accumulate pressure in the direction connected with the atmosphere, so that the volume of the liquid outlet 121 and the soap liquid flow passage 13 rises at the same time, when the pressure between the liquid outlet 121 and the soap liquid flow passage 13 rises to the opening pressure threshold of the slit 141 of the silica gel diaphragm 14, the soap liquid is pumped out in the process of pressing down the pump head 12 and pushes the silica gel diaphragm 14 to deform to open the slit 141, so that the soap liquid is ejected from the soap liquid flow passage 13 through the silica gel diaphragm 14, when the pump head 12 is pressed down to the bottom to stop a single pump stroke, and the elastic volume expansion device 15 recovers the original shape under the elasticity of itself to eject the excess soap liquid generated by expansion, at this time, the silicone membrane 14 loses the pressure between the liquid outlet 121 and the soap liquid flow channel 13, so that the silicone membrane 14 recovers under the elasticity of itself and closes the slit 141; the expansion volume of the elastic volume expansion device 15 is smaller than the liquid outlet volume of the pump head 12 in a single pressing.

In the structure, according to the problem that the residual soap liquid in the existing soap liquid outlet is easy to agglomerate, the silica gel membrane 14 in the prior art is used as an opening and closing element of the soap liquid flow passage 13 and is arranged in the soap liquid flow passage 13 (the silica gel membrane 14 structure refers to the structure of a bottle cap of a sport beverage produced by farmer mountain spring), because the working condition of the silica gel membrane 14 needs to meet certain pressure, the slit 141 can be opened, the slit 141 is opened under pressure, the soap liquid is sprayed out in a spraying state, and the slit 141 can be closed in time to rapidly intercept the soap liquid when the pressure is reduced to a certain threshold value, the situation that the adhesion and accumulation of the soap liquid at the position of the outlet 132 of the soap liquid flow passage 13 cause the evaporation of water to harden and agglomerate is avoided; however, in the actual research and test process, the silicone membrane 14 in the prior art cannot meet the requirement that the soap solution is not adhered completely, and the specific reasons are as follows: the pressure conditions of the using positions of the silica gel membrane 14 are different, when the silica gel membrane is used for a common beverage plastic bottle, the slit 141 is opened by increasing the pressure in the bottle caused by squeezing the bottle body, after the slit 141 of the silica gel membrane 14 is opened, the pressure for opening the slit 141 is kept to be smaller than the pressure at the moment when the slit 141 is opened, therefore, the pressure can be accumulated by utilizing the space of the bottle body when squeezing the bottle body, the slit 141 is kept to be continuously opened by the accumulated pressure, after the accumulated pressure is smaller than the pressure for maintaining the opening of the slit 141, the slit 141 can be instantly closed, if the secondary opening is needed, the bottle body needs to be squeezed again to increase the accumulated pressure, but when the soap dispenser is used, because the condition for accumulating pressure does not exist between the liquid outlet 121 of the pump head 12 and the soap liquid flow channel 13, under the condition that the liquid outlet 121 and the soap flow channel 13 are, therefore, the pressure accumulation requirement cannot be realized, the amount of the liquid soap discharged from the slit 141 of the silicone membrane 14 by pressing the pump head 12 will occur, and there is no pressure difference between the opening moment of the silicone membrane 14 and the opening state of the silicone membrane 14, which will cause the silicone membrane 14 to reset after the pressure accumulation is reduced and drive the slit 141 to close, because the volumes of the liquid outlet 121 and the liquid soap flow channel 13 cannot be adjusted, the liquid soap will continuously extrude a small amount of liquid soap from the slit 141 under the resetting and extruding pressure of the silicone membrane 14, so that the liquid soap is not blocked up and brittle, and the liquid soap is accumulated outside the silicone membrane 14 and is dried and agglomerated, therefore, if the problem is to be solved, the pressure difference between the opening moment and the opening state of the silicone membrane 14 needs to be established, a compressible liquid outlet is initially arranged in the liquid outlet 121 and the liquid soap flow channel 13, however, in order to realize this solution, it is necessary to have a sufficiently large compressible space for compression, otherwise it is difficult to compress the air in the cavity in the limited space between the liquid outlet 121 and the soap liquid flow passage 13 under normal pressure to generate a compressed space with a sufficient volume (i.e. insufficient compression sensitivity), and the compressed space is a separate space body in which the air is compressible, so that there are situations that the volume of the air in the space body changes due to changes in temperature and air pressure, and unstable factors are generated to cause liquid leakage and leakage of the silicone membrane 14; after a large number of tests are carried out, a second scheme is selected, namely, a condition which is communicated with the atmosphere and can change the volume is created, the liquid leakage and leakage conditions of the silicone membrane 14 caused by the change of temperature and air pressure can be effectively solved, the expansion volume of the elastic volume expansion device 15 is smaller than the liquid outlet volume of the pressing pump head 12 during single pressing, and the silicone membrane 14 can be opened on the premise that the liquid outlet volume of the soap liquid of the pressing pump head 12 during single pressing meets the soap liquid volume required by the expansion and pressure accumulation of the elastic volume expansion device 15; the liquid outlet 121 is connected to the soap liquid flow passage 13 in a vertically upward or obliquely upward manner, so that bubbles in the liquid outlet 121 and the soap liquid flow passage 13 can float upward and be discharged or discharged first, air in the liquid outlet 121 and the soap liquid flow passage 13 can be discharged as much as possible, and liquid leakage of the silicone membrane 14 due to temperature and air pressure changes can be reduced.

In this embodiment, the end of the soap liquid flow channel 13 opposite to the end connected to the liquid outlet 121 extends vertically upward or extends obliquely upward to the highest point, and the rear end portion of the end is arranged close to the highest point and is inclined downward or is arranged vertically downward, and the silicone membrane 14 is located at the end of the soap liquid flow channel 13 at the highest point and is inclined downward or is arranged close to the end of the soap liquid flow channel 13.

In the above structure, the air bubbles accidentally entering the soap liquid flow passage 13 can be accumulated at the highest point of the soap liquid flow passage 13, so that the air bubbles can be discharged first when the slit 141 of the silicone membrane sheet 14 is opened.

In this embodiment, the opening pressure threshold of the slit 141 of the silicone membrane 14 is greater than the pressure threshold for maintaining the opened state of the slit 141.

In the above structure, it is a feature of the conventional silicone diaphragm 14 that the opening pressure threshold of the slit 141 of the silicone diaphragm 14 is larger than the pressure threshold for maintaining the opened state of the slit 141.

In this embodiment, an expansion window 131 is disposed at an upstream position of the soap liquid flow channel 13 where the silicone membrane 14 is disposed, and the elastic volume expansion device 15 is an elastic rubber membrane 151 disposed on the expansion window 131.

In the above structure, the opening position of the expansion window 131 is preferably a position close to the silicone membrane 14, so that the pushing force of the elastic rubber membrane 151 on the soap liquid is more sensitive when the elastic rubber membrane is contracted after being expanded and stored outwards, and the influence of the soap liquid in the soap liquid flow passage 13 due to fluid resistance is reduced.

In this embodiment, when the soap solution flow passage 13 is disposed obliquely, the opening of the expansion window 131 faces the ground.

In the above structure, it is possible to prevent the bubbles in the soap solution from being collected in the elastic rubber film 151 due to the upward swelling when the elastic rubber film 151 is expanded, which is advantageous to guide the bubbles in the soap solution to be collected toward the highest position of the soap solution flow passage 13.

In this embodiment, a plurality of uniformly distributed unidirectional expansion columns 152 are adhered to a surface of the elastic rubber film 151 facing away from the inner cavity of the soap liquid flow channel 13, and the unidirectional expansion columns 152 are closely abutted against each other before the elastic rubber film 151 deforms.

In the above structure, the unidirectional expansion columns 152 are radially separated from each other and are extended by a distance when the elastic rubber film 151 expands and deforms and protrudes outward, so that the expansion of the elastic rubber film 151 is not restricted, when the pressing pump head 12 is pressed down, the elastic rubber film 151 presses the accumulated pressure soap out of the slit 141 under the action of its own elasticity, the liquid outlet 121 and the soap flow passage 13 will have a certain probability of negative pressure when the pressing pump head 12 is reset or the pressing pump head 12 is not pressed again for a long time, so that the elastic rubber film 151 is recessed toward the inner wall of the soap flow passage 13, and the unidirectional expansion columns 152 can mutually press and abut against each other when the elastic rubber film 151 is recessed toward the inner wall of the soap flow passage 13, so as to restrict the inward concave deformation of the elastic rubber film 151, thereby avoiding the increase of the volume of the soap required for restoring the pressure accumulation state of the elastic rubber film 151 when the pressing pump head 12 is pressed down again, the problem that the liquid cannot be discharged after pressing is easily induced.

In this embodiment, the cross-section of the unidirectional expansion column 152 is circular, isosceles triangle, square, or hexagon.

In the above structure, the cross-sections of the unidirectional expansion columns 152 are preferably circular and arranged in a honeycomb shape, a certain gap can be generated between adjacent circular unidirectional expansion columns 152 to accommodate dust impurities, and the possibility that the elastic rubber film 151 is not reset in place due to the fact that the unidirectional expansion columns 152 cannot be drawn close to each other due to the dust impurities existing between the unidirectional expansion columns 152 is reduced.

In this embodiment, the silicone membrane 14 is clamped at the outlet 132 of the soap flow channel 13 by a clamp ring 142.

In the structure, the silicon membrane 14 is convenient to replace when damaged.

The invention has the beneficial effects that: according to the problem that residual soap liquid in the existing soap liquid outlet is prone to caking, a silica gel membrane 14 in the prior art is used as an opening and closing element of the soap liquid flow channel 13 and is arranged in the soap liquid flow channel 13 (the structure of the silica gel membrane 14 refers to the structure of a bottle cap of a squeal sports beverage produced by farmer mountain spring), as the working condition of the silica gel membrane 14 needs to meet certain pressure, a slit 141 can be opened, the slit 141 is opened under pressure, soap liquid is sprayed out in a spraying state, the slit 141 can be closed in time and the soap liquid is cut off rapidly when the pressure is reduced to a certain threshold value, the situation that the adhesion and accumulation of the soap liquid at the position of the outlet 132 of the soap liquid flow channel 13 cause water evaporation and hardening caking is avoided; however, in the actual research and test process, the silicone membrane 14 in the prior art cannot meet the requirement that the soap solution is not adhered completely, and the specific reasons are as follows: the pressure conditions of the using positions of the silica gel membrane 14 are different, when the silica gel membrane is used for a common beverage plastic bottle, the slit 141 is opened by increasing the pressure in the bottle caused by squeezing the bottle body, after the slit 141 of the silica gel membrane 14 is opened, the pressure for opening the slit 141 is kept to be smaller than the pressure at the moment when the slit 141 is opened, therefore, the pressure can be accumulated by utilizing the space of the bottle body when squeezing the bottle body, the slit 141 is kept to be continuously opened by the accumulated pressure, after the accumulated pressure is smaller than the pressure for maintaining the opening of the slit 141, the slit 141 can be instantly closed, if the secondary opening is needed, the bottle body needs to be squeezed again to increase the accumulated pressure, but when the soap dispenser is used, because the condition for accumulating pressure does not exist between the liquid outlet 121 of the pump head 12 and the soap liquid flow channel 13, under the condition that the liquid outlet 121 and the soap flow channel 13 are, therefore, the pressure accumulation requirement cannot be realized, the amount of the liquid soap discharged from the slit 141 of the silicone membrane 14 by pressing the pump head 12 will occur, and there is no pressure difference between the opening moment of the silicone membrane 14 and the opening state of the silicone membrane 14, which will cause the silicone membrane 14 to reset after the pressure accumulation is reduced and drive the slit 141 to close, because the volumes of the liquid outlet 121 and the liquid soap flow channel 13 cannot be adjusted, the liquid soap will continuously extrude a small amount of liquid soap from the slit 141 under the resetting and extruding pressure of the silicone membrane 14, so that the liquid soap is not blocked up and brittle, and the liquid soap is accumulated outside the silicone membrane 14 and is dried and agglomerated, therefore, if the problem is to be solved, the pressure difference between the opening moment and the opening state of the silicone membrane 14 needs to be established, a compressible liquid outlet is initially arranged in the liquid outlet 121 and the liquid soap flow channel 13, however, in order to realize this solution, it is necessary to have a sufficiently large compressible space for compression, otherwise it is difficult to compress the air in the cavity in the limited space between the liquid outlet 121 and the soap liquid flow passage 13 under normal pressure to generate a compressed space with a sufficient volume (i.e. insufficient compression sensitivity), and the compressed space is a separate space body in which the air is compressible, so that there are situations that the volume of the air in the space body changes due to changes in temperature and air pressure, and unstable factors are generated to cause liquid leakage and leakage of the silicone membrane 14; after a large number of tests are carried out, a second scheme is selected, namely, a condition which is communicated with the atmosphere and can change the volume is created, the liquid leakage and leakage conditions of the silicone membrane 14 caused by the change of temperature and air pressure can be effectively solved, the expansion volume of the elastic volume expansion device 15 is smaller than the liquid outlet volume of the pressing pump head 12 during single pressing, and the silicone membrane 14 can be opened on the premise that the liquid outlet volume of the soap liquid of the pressing pump head 12 during single pressing meets the soap liquid volume required by the expansion and pressure accumulation of the elastic volume expansion device 15; the liquid outlet 121 is connected to the soap liquid flow passage 13 in a vertically upward or obliquely upward manner, so that bubbles in the liquid outlet 121 and the soap liquid flow passage 13 can float upward and be discharged or discharged first, air in the liquid outlet 121 and the soap liquid flow passage 13 can be discharged as much as possible, and liquid leakage of the silicone membrane 14 due to temperature and air pressure changes can be reduced.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and those modifications and variations assumed in the above are also considered to be within the protective scope of the present invention.