CN216167108U - Liquid outlet device with air pressure balancing device - Google Patents

Abstract

The utility model discloses a liquid outlet device with an air pressure balancing device, which comprises: the casing, the setting is at the inside work module of casing to and the stock solution bottle of being connected with the casing, the casing includes the drain pan and sets up the atmospheric pressure balancing unit on the drain pan can be under the sealed condition of stock solution bottle and drain pan, at the during operation, liquid in the stock solution bottle is taken out and is left, the atmospheric pressure step-down in the stock solution bottle that leads to, avoid atmospheric pressure to take place the extruded condition of stock solution bottle, the vacuum condition can not appear in the assurance stock solution bottle, the too much and external contact of liquid in the prevention stock solution bottle that atmospheric pressure balancing unit can also be fine simultaneously, lead to the liquid in the stock solution bottle rotten, thereby realize the liquid life in the extension stock solution bottle.

Description

Liquid outlet device with air pressure balancing device

Technical Field

The utility model relates to the technical field of personal cleaning devices and sterilizing devices, in particular to an automatic induction liquid outlet device.

Background

Along with the gradual importance of modern people on personal hygiene, more and more people begin to pay attention to the hygiene of the liquid outlet device of the hand sanitizer, and the demand of people on the non-contact liquid outlet device is gradually increased due to the change of new crown epidemic situations to the life of people.

The non-contact liquid outlet device can solve the problem of contact bacteria propagation of people during hand washing to a great extent, and the main non-contact liquid outlet device at present is triggered in an electric pump and infrared induction mode, extends hands to an induction area, triggers an electric pump, sucks liquid to discharge the liquid and provides the liquid to a user side.

However, since the design of the liquid outlet device still has a certain unreasonable place, the user experience is very poor, and therefore the design needs to be further improved, and the user experience is improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a liquid outlet device with an air pressure balancing device, which comprises a bottom shell, wherein the air pressure balancing device is also arranged on the bottom shell, the air pressure balancing device can be used for pumping away liquid in a liquid storage bottle when a liquid storage bottle and the bottom shell are sealed, so that the air pressure in the liquid storage bottle is reduced, the liquid storage bottle is prevented from being extruded by atmospheric pressure, the vacuum condition in the liquid storage bottle is ensured, meanwhile, the air pressure balancing device can also well prevent excessive liquid in the liquid storage bottle from contacting the outside, so that the liquid in the liquid storage bottle is deteriorated, and the service life of the liquid in the liquid storage bottle is prolonged.

A dispenser with a pressure equalisation device, comprising: the liquid storage device comprises a shell, a working module arranged in the shell and a liquid storage bottle connected with the shell, wherein the shell comprises a bottom shell and an air pressure balancing device arranged on the bottom shell.

Further, the bottom shell comprises a groove matched with the liquid storage bottle, and the air pressure balancing device comprises an inner hole arranged in the groove of the bottom shell.

Further, the air pressure balancing device further comprises a side hole arranged on the outer ring of the bottom shell and a connecting pipe communicated with the inner hole and the side hole.

Further, a one-way valve is arranged in the connecting pipe.

Further, the check valve is a microporous valve.

Further, the aperture of the microporous valve is less than twice the quotient of the tension of liquid in the liquid storage bottle divided by the gravity of the liquid at the aperture.

Furthermore, the one-way valve is a convex structure extending inwards from the connecting pipe arm, the convex structure extends towards the center from the wall of the connecting pipe, and the convex structures are alternately arranged.

Further, the groove depth of the bottom shell is smaller than the bottle mouth length of the liquid storage bottle, after the bottom shell and the liquid storage bottle are assembled, a distance exists between the bottom shell and the liquid storage bottle, and the side hole is not in contact with the liquid storage bottle.

Further, a groove sealing ring is arranged around the top of the groove.

Further, a bottom shell sealing ring is arranged between the bottom shell and the side shell.

The liquid outlet device provided by the utility model comprises: the casing, the setting is at the inside work module of casing to and the stock solution bottle of being connected with the casing, the casing includes the drain pan and sets up the atmospheric pressure balancing unit on the drain pan can be under the sealed condition of stock solution bottle and drain pan, at the during operation, liquid in the stock solution bottle is taken out and is left, the atmospheric pressure step-down in the stock solution bottle that leads to, avoid atmospheric pressure to take place the extruded condition of stock solution bottle, the vacuum condition can not appear in the assurance stock solution bottle, the too much and external contact of liquid in the prevention stock solution bottle that atmospheric pressure balancing unit can also be fine simultaneously, lead to the liquid in the stock solution bottle rotten, thereby realize the liquid life in the extension stock solution bottle.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a perspective view of the air pressure balancing apparatus of the present invention;

FIG. 4 is a cross-sectional view of the air pressure balancer of the present invention;

FIG. 5 is a schematic view of the housing of the present invention;

FIG. 6 is a schematic diagram of the working module of the present invention;

FIG. 7 is a schematic view of a battery pack according to the present invention;

FIG. 8 is a schematic view of a sensor holder according to the present invention;

FIG. 9 is a schematic view of a sensor holder configuration according to the present invention;

FIG. 10 is a cross-sectional view of a sensor housing component of the present invention;

FIG. 11 is a schematic diagram of the pump module of the present invention;

FIG. 12 is a schematic view of a key structure according to the present invention;

FIG. 13 is a schematic view of a key structure according to the present invention;

FIG. 14 is a flow chart of a method of the present invention;

FIG. 15 is a flowchart illustrating the false touch prevention operation of the present invention;

FIG. 16 is a flow chart of key operation according to the present invention;

FIG. 17 is a flowchart of a method for switching operating modes according to the present invention;

FIG. 18 is a flow chart of a no liquid reminder method of the present invention;

FIG. 19 is a flowchart illustrating the overall operation of the present invention;

reference numerals: 1-upper cover, 2-side casing, 3-pipette, 4-battery box, 41-battery lower cover, 411-battery lower cover jaw, 42-battery upper cover, 43-electric terminal, 44-battery barrel, 45-battery upper cover lock hole, 46-battery box seal ring, 5-liquid outlet, 6-sensor mounting bracket, 61-sensor light guide plate, 62-sensor control plate, 63-sensor bracket seal ring, 64-sensor bracket side arm, 65-sensor bracket fixing hole, 641-sensor control plate fixing buckle, 642-sensor control plate fixing hole, 67-sensor accommodating part, 68-seal ring, 69-sensor, 691-transmitting sensor, 692-receiving sensor, 21-pump fixing bracket, 211-pump mounting bracket stiffener, 22-groove face, 23-outlet side, 24-side rib, 12-key light guide, 121-key foot receiving groove, 122-lamp bead receiving groove, 7-control panel, 71-lamp bead, 8-sound deadening structure, 9-pump, 10-air pressure balancing device, 101-internal hole, 102-side hole, 103-connecting tube, 1031-check valve, 32-pump front tube, 33-pump rear tube, 72-control panel fixing hole, 11-key, 111-key foot, 13-liquid storage bottle, 14-working module, 15-bottom case, 151-bottom case sealing ring, 152-groove, 153-liquid inlet, 154-groove sealing ring, 155-protrusion, 16-snap, 161-outward snap and 162-inward snap.

Detailed Description

The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the utility model, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

The following description is provided in connection with various examples that may share one or more common features and/or characteristics. It is to be understood that one or more features of any one example may be combined with one or more features of another or other examples. Additionally, in any of the examples, any single feature or combination of features may constitute additional examples.

Fig. 1-13 are schematic structural diagrams of the present invention, specifically:

a housing:

in one form of the present technology, the casing in the present technology includes a side casing 2, the side casing 2 approximately forms a through barrel-shaped structure, the side casing 2 covers the side casing 2, and the upper cover 1 on the top of the side casing 2 and the lower part of the side casing 2 are sealed, the bottom casing 15 under the side casing 2 is sealed, the side casing 2, the upper cover 1 and the bottom casing 15 form a sealed cavity, the working module 14 of the liquid outlet device in the present technical solution is arranged in the cavity, and the working module 14 realizes the function of discharging the foam liquid.

In one form, the side casing 2 includes a liquid outlet side 23, the liquid outlet side 23 is at an upwardly inclined angle relative to the main body of the side casing 2, and the liquid outlet 5 is disposed at the liquid outlet side 23. due to the upwardly inclined angle, the liquid outlet 5 is at an outwardly inclined angle relative to the side casing 2, so that the liquid outlet is further away from the side casing 2, thereby facilitating the user to take the liquid and avoiding the problem of hanging the liquid to some extent.

In one form, the outlet side 23 of the side casing 2 is at an angle of about 100 ° to the main body of the vertical side casing 2, in this embodiment 125 °. Adopt the liquid outlet side 23 of tilt up can also make the liquid outlet 5 overlap the setting for liquid outlet side 23, and 6 installation angles of sensor installing support are the same with the tilt up angle of liquid outlet side 23, and sensor installing support 6 is on a parallel with convenient equipment of liquid outlet side 23, promotes the yield of assembly simultaneously.

In one form, still be provided with the sealing washer between upper cover 1 and the side casing 2, liquid under this sealing washer not only can solving service environment gets into seal chamber from the space between upper cover 1 and the side casing 2 in, can also reduce work module's noise of work and spread seal chamber, guarantees user experience.

In one form, the side casing 2 further comprises a slot surface 22, the slot surface 22 extends from the side main body of the side casing 2 to the liquid outlet side 23 of the side casing 2, and the slot surface 22 of the side casing 2 is an inward-cutting plane, so that a user can conveniently extend a hand to the side casing 2 at a closer distance in the liquid taking process through the slot surface 22, the hand is in the detection range of the sensor 69, the hand can be positioned below the liquid outlet 5, the liquid outlet can be completely arranged on the hand of the user, and the trigger sensitivity of the sensor 69 is also ensured.

In one form, a plurality of catches 16 are provided under the upper cover 1, the plurality of catches 16 are oriented differently, the direction of the catches 16 at the positions corresponding to the main body of the side casing 2 is outward facing catches 161, the direction of the catches 16 corresponding to the outlet side 23 of the side casing 2 is inward facing catches 162, the inner wall of the main body of the side casing 2 is provided with side ribs 24 which are engaged with the outward facing catches 161, and the sensor holder side arms 64 of the sensor holder 6 at the outlet side 23 are provided with notches which are engaged with the inward facing catches 162. Buckle 16 carries out the block with different parts and fixes, and buckle 16's orientation is inequality simultaneously, can provide better fixed effect.

In one form, still use glue to bond fixedly between upper cover 1 and the side shell 2, fix the waterproof performance that can promote out the liquid ware through glue, in the service environment of going out the liquid ware, waterproof performance can promote life.

In one form, the bottom case 15 carries the working module 14, the bottom case 15 is provided with a battery barrel 44, the bottom case 15 is provided with screw holes, the corresponding side case 2 is provided with screw posts, the bottom case 15 and the side case 2 are fixedly connected through screws, a battery lower cover 41 is further arranged below the bottom case 15, the battery lower cover 41 is rotatably and fixedly connected with the bottom case 15 through a rotating shaft, the screw holes of the bottom case 15 are arranged above the rotating shaft of the battery lower cover 41, after the battery lower cover 41 is installed, the screw holes are covered by the rotating shaft of the battery lower cover 41, the rotating shaft comprises a battery lower cover clamping claw 411 arranged on the battery lower cover 41 and a convex part 155 arranged on the bottom case 15, the battery lower cover clamping claw 411 is rotatably clamped and matched with the convex part 155, the battery lower cover 411 can rotate relative to the bottom case 15, and in the use environment of the liquid outlet device, the contact of fixing screws with liquid can be avoided to a certain degree to prevent the screws from rusting, thereby guarantee product life, promote user experience. The battery cylinder 44 and the bottom shell 15 are integrally formed, the battery lower cover 41 is further provided with a battery box sealing ring 46 and an electric terminal 43, and the battery box sealing ring 46 can prevent liquid and vapor from entering the battery box 4, so that the battery is ensured to be normally powered. In one form, the work module 14 is disposed non-concentric with the bottom shell 15.

In one form, a bottom shell seal 151 is also provided between the bottom shell 15 and the side shell 2, the bottom shell seal 151 preventing moisture from entering the fuselage through the gap between the bottom shell 15 and the side shell 2, resulting in damage to the fuselage hardware structure.

In one form, a groove 152 is formed in the direction of the upper cover 1 below the bottom shell 15, threads are formed around the groove 152, the groove 152 is matched with the liquid storage bottle 13, a liquid inlet 153 is formed in the middle of the groove 152, the liquid inlet 153 is of a raised tubular structure and externally sleeved with a liquid suction pipe 3, and a groove sealing ring 154 is formed around the top of the groove 152 to ensure the sealing connection between the liquid storage bottle 13 and the bottom shell 15.

In one form, still be provided with air pressure balancing unit 10 on the drain pan 15, air pressure balancing unit 10 can be under the sealed condition of stock solution bottle 13 and drain pan 15, at the during operation, liquid in the stock solution bottle 13 is taken out from, the atmospheric pressure step-down in the stock solution bottle 13 that leads to, avoid atmospheric pressure to take place stock solution bottle 13 extruded condition, the vacuum condition can not appear in the stock solution bottle 13 of assurance, the too much and external contact of liquid in the prevention stock solution bottle 13 that air pressure balancing unit 10 can also be fine simultaneously, lead to the liquid in the stock solution bottle 13 rotten, thereby realize the liquid life in the extension stock solution bottle 13.

In one form, the depth of the groove 152 of the bottom shell 15 is less than the length of the mouth of the liquid storage bottle 13, so that the bottom shell 15 and the body of the liquid storage bottle 13 have a certain distance after the assembly is completed, which can ensure that the air pressure balancing device 10 can work normally.

In one form, the battery can 44 has four battery mounting grooves, the battery can upper cover 42 is fixedly connected with the battery can 44 by screws, the battery can electrical terminals 43 are arranged between the battery upper cover 42 and the battery can 44, and the electrical terminals 43 are fixedly connected while the battery can upper cover 42 is fixedly connected with the battery can 44. The electric terminal 43 comprises a connecting part and two edge parts, the two edge parts are square, the connecting part is in a barbell shape with two ends being circular and a middle metal sheet, a groove for accommodating the electric terminal 43 is arranged on the battery barrel 44, the assembly is convenient, meanwhile, the electric terminal 43 does not transversely displace, an abutting part is arranged on the battery upper cover 42, the electric terminal 43 does not longitudinally displace, and therefore the electric terminal 43 is accurately positioned.

Pressing a key:

in one form of the present technology, the key 11 is disposed on the upper cover 1, the upper cover 1 is provided with an opening of the key 11, the key 11 is disposed in the opening, the key 11 is connected to the upper cover 1 through the key support 111, and the area of the key opening is larger than that of the key 11, thereby forming a hollow structure surrounding the key 11.

In one form, the key 11 and key openings are circular and the key legs 111 are three, equiangular and evenly distributed around the key 11.

In one form, the hollow structure between the key 11 and the key opening is filled by the key light guide plate 12, the key light guide plate 12 is disposed below the key 11, and the whole hollow structure is filled simultaneously, so as to ensure sealing, the contact side between the key light guide plate 12 and the key 11 is the upper side, the key light guide plate 12 deviates from the key 11 side to be the lower side, the upper side of the key light guide plate 12 is provided with a key supporting leg accommodating groove 121, the key supporting legs 111 are accommodated in the key supporting leg accommodating groove 121, the lower side of the key light guide plate 12 is provided with a lamp bead accommodating groove 122, and the lamp beads 71 are disposed in the lamp bead accommodating groove 122.

In one form, the keys 11 are integrally formed with the upper cover 1, and the key light guide plate 12 is integrally formed with the upper cover 1 and the keys 11 using a two-shot molding process.

In one form, the key light guide plate 12 is a transparent material. The transparent material can guarantee the printing opacity volume, guarantees the printing opacity display effect of button.

In one form, the key light guide plate 12 is a frosted soft light material. The soft light material can ensure the uniformity of light and offset the problem of uneven key light generated by the key support legs 111.

In one form, the position of the lamp bead accommodating groove 122 is arranged at the central position of the lower side of the key light guide plate 12, so that the length of light to each edge can be ensured to be the same, and the uniformity of light is ensured.

In one form, the lamp bead accommodating grooves 122 are multiple, the number of the lamp bead accommodating grooves 122 is the same as that of the key support legs 111, the lamp bead accommodating grooves 122 are arranged at the middle positions of the two key support legs 111, different light prompts can be generated through multi-light-source arrangement, and convenience of a user in operation and use is guaranteed. If the time for washing hands is prompted to the user, the multiple lamp beads are simultaneously turned on when the hand washing is started, the multiple lamp beads are gradually turned off along with the time for washing hands, and when all the lamp beads are turned off, the time for washing hands reaches the specified time, so that the hand washing is finished.

Control panel:

in one form of the present technique, the control board includes a sensor control board 62 and a control board 7, the sensor control board 62 and the control board 7 being electrically connected.

In one form, the control panel 7 is disposed below the upper cover 1 and is fixedly connected to the upper cover 1, the control panel 7 is disposed below the keys 11, while the touch key sensing module of the control panel 7 is disposed below the keys, while a lamp bead 71 is disposed in the middle of the sensing module, the lamp bead 71 preferably being an LED lamp bead, the lamp bead 71 being disposed in the lamp bead accommodating groove 122 of the key light guide plate 12.

In one form, the sensor control board 62 is provided with a transmitting sensor 691 and a receiving sensor 692, and sensing whether the user is in use or not is achieved by detecting the receiving signals of the transmitting sensor 691 and the receiving sensor 692. The coating of the receiving sensor 692 has a black color to reduce light interference and improve triggering accuracy.

The sensor holder 6:

in one form of the present technique, the sensor mounting bracket 6 is provided in the liquid outlet side 23 of the side case 2, and the sensor mounting bracket 6 further includes: sensor light guide plate 61, side shell 2 play liquid outlet side 23 is provided with sensor light guide plate opening, and sensor light guide plate 61 sets up in sensor light guide plate opening, and sensor light guide plate 61 is black printing opacity material, and sensor 69 normal work can be guaranteed to the printing opacity material, and light interference can be reduced to black, and the false triggering condition that reduces sensor 69 takes place.

In one form, the sensor light guide plate 61 is formed with a slot for receiving the sensor 67, the sensor receiving part 67 is an elastic part having two receiving holes for receiving the sensor 69, further, the elastic part is made of silicone material having certain elasticity to better protect the sensor 69, and reduce the displacement of the sensor 69 caused by the vibration of the pump 9 during use, thereby improving the use experience, the sensor receiving part 67 is formed into a step-like structure, a protrusion part matching with the slot shape of the sensor receiving part 67 is arranged below the step, the protrusion part is matched with the slot of the sensor receiving part 67, a fixing part having a larger cross section than the protrusion part is arranged above the protrusion part, the sensor receiving part 67 is further provided with two receiving holes for receiving the sensor 69, namely, receiving hole 691 and receiving 692, the two sensor receiving holes 69 are independently formed without communicating with each other, and the sensor receiving holes penetrate the protruding portion and the fixing portion to form a through hole structure. Be provided with the stair structure in the sensor 69 accommodation hole, the aperture below the stair structure is less than the aperture of top, and the stair structure can cooperate sensor 69, better protection sensor 69, reduces simultaneously that the interference light gets into sensor 69.

In one form, liquid outlet 5 sets up on sensor installing support 6, and with receiving sensor 692 and transmitting sensor 691 in line, and further, receiving sensor 692 sets up in the one side of keeping away from liquid outlet 5, and transmitting sensor 691 sets up in the one side that is close to liquid outlet 5, through this mode of setting, can solve the problem that some hangs liquid spurious triggering.

In one form, the sensor support side arms 64 are further disposed on two sides of the sensor light guide plate 61, the sensor support side arms 64 are symmetrically provided with sensor support fixing screw holes, and the sensor support 6 is fixedly connected with the liquid outlet side 23 of the side shell 2 through the sensor support fixing holes 65. The sensor bracket side arm 64 is further provided with a sensor control panel buckle 641 and a sensor control panel fixing hole 642, the sensor control panel fixing hole 642 is arranged on one side, and the sensor control panel 62 is fixedly connected through the sensor control panel buckle 641 and the sensor control panel fixing hole 642. The single-sided arrangement of the sensor control plate fixing hole 642 can prevent the sensor control plate 62 from being damaged due to vibration during assembly or during use. The sensor control board 62 is provided with a protrusion, which can be engaged with the sensor control board buckle 641, and the sensor control board buckle 641 is configured as a downward inclined protrusion having an inclined surface, so that the protrusion on the sensor control board 62 slides down to a fixed position through the inclined surface during assembly, thereby facilitating assembly.

In one form, the sensor support is provided with a sensor support sealing ring 63 on the contact surface with the side casing liquid outlet side, the sensor support sealing ring 63 can ensure that no liquid enters the machine body from the liquid outlet side 23, the liquid outlet device can hang liquid or the liquid is insufficient in different degrees at the liquid outlet side 23, the foam amount is insufficient, and the foam can surround the liquid inlet problem caused by the liquid outlet.

Air pressure balancing device 10:

in one form of the technology, the air pressure balancing device 10 includes an inner hole 101 disposed in a groove 152 of the bottom shell 15, and a side hole 102 disposed on the outer periphery of the bottom shell 15, the inner hole 101 and the side hole 102 are communicated through a connecting pipe 103, when in operation, the pump 9 pumps out the liquid in the liquid storage bottle 13, because the liquid storage bottle 13 and the bottom shell 15 are hermetically connected, the air pressure in the liquid storage bottle 13 becomes low, so that the inner hole 101 performs the function of external air entering, in order to ensure the waterproof performance of the machine, the liquid in the liquid storage bottle 13 is prevented from entering the interior of the machine body through the inner hole 101 to cause the damage of the machine, therefore, the utility model simultaneously provides a side hole 102 on the outer side of the bottom shell 15 of the machine body, and connects the inner hole 101 and the side hole 102 through the connecting pipe 103, when the pressure in the liquid storage bottle 13 is reduced, the external air can enter the connecting pipe 103 through the side hole 102, inside passing inside hole 101 through connecting pipe 103 and reacing stock solution bottle 13, guarantee that atmospheric pressure is balanced, appear rocking or invert when the body, liquid in the stock solution bottle 13 can get into connecting pipe 103 through inside hole 101, and rethread lateral part hole 102 flows to can not flow into inside the machine fuselage, so both guaranteed the during operation, the pressure balance in the stock solution bottle 13 can prevent again that the liquid in the stock solution bottle 13 from getting into the damage that the fuselage leads to.

In one form, the connection tube 13 is also provided with a one-way valve 1031, the one-way valve 1031 being a micro-porous valve having an aperture diameter less than twice the liquid tension divided by the liquid gravity at the aperture.

In one form, the one-way valve 1031 is a raised structure extending inward from the connector arm that extends centrally from the wall of the connector 103, the raised structure alternating to block moisture.

The working module comprises:

in one form of the present technique, including pump 9, the pump is a foam pump, pump 9 includes a pump head 32, pump head 32 is connected to the inlet and inlet 153 of pump 9, the outlet of pump 9 is connected to outlet 5 through pump rear tube 33, the pump is also electrically connected to control board 7, and control board 7 is also electrically connected to electrical terminals 43 of battery case 4 and sensor control board 62 by controlling the operating and non-operating state of pump 9 through control board 7. The liquid in the liquid storage bottle 13 flows through the liquid inlet 153 via the liquid suction pipe 3, then reaches the pump 9 via the front pump pipe 32, and the pump 9 foams the liquid, and then reaches the liquid outlet 5 via the rear pump pipe 33 to reach the user end.

In one form, the bottom shell 15 is provided with a pump fixing support 21, the pump 9 is fixed in the pump fixing support 21, the number of the pump fixing supports 21 is three, the pump fixing support 21 further comprises a pump fixing support reinforcing rib 211 arranged on one side of the pump 9, the pump fixing support reinforcing rib 211 is an arc-shaped side, the three arc-shaped sides are arranged on an arc of the same circle and are arranged at intervals, the pump 9 is locked on the pump fixing support 21 through screws, the circle where the pump fixing support reinforcing rib 211 is arranged is eccentrically arranged with the groove 152 of the bottom shell 15, the circle where the pump fixing support reinforcing rib 211 is arranged is more deviated to the liquid outlet side of the side shell relative to the groove 152 of the bottom shell 15, the length of the pump rear pipe 33 can be shortened through the arrangement, the defoaming effect of the pump rear pipe after liquid is foamed through the pump 9 on the liquid is reduced, more foam is generated, meanwhile, the eccentric design can also move a space for the battery box 4 to ensure the position of the battery box 4, the weight of the battery box 4 filled with batteries can be balanced by the weight of the pump 9, so that the unstable product is avoided.

In one form, because the installation of recess 152 eccentric for drain pan 15 when the pump is installed, pump head tube 32 is "Z" font, and pump head tube 32's partial body sets up between pump 9 and drain pan 15, and pump head tube 32 is made by elastic material, therefore pump head tube 32 can also be as the elastic support of pump 9, reduces the vibration of pump 9, reduces the noise of pump 9 at the during operation, promotes user experience.

In one form, pump fixed bolster 21 is equant to be set up around pump 9, and pump 9 passes through screw and pump fixed bolster 21 fixed connection, and pump fixed bolster strengthening rib 211 sets up the one side at pump 9, pump fixed bolster strengthening rib 211 is the same with the peripheral shape of pump 9, forms certain space between the motor part of pump 9 and the pump fixed bolster strengthening rib 211, in this space, is provided with amortization structure 8, and amortization structure 8 is amortization cotton, and amortization cotton is elastic construction, the space width between pump 9 and the fixed bolster strengthening rib 211 is less than the cotton thickness of amortization, and the amortization cotton can reduce the motor noise of pump 9, reduces the vibration of pump 9 in the use simultaneously and strikes pump fixed bolster strengthening rib 211, extension product life.

Fig. 14 to 19 are schematic diagrams of the work flow of the present technology, and the specific work flow is as follows:

in one form of the present technology, the following steps are included:

the first step is as follows: the method comprises the steps of powering up for initialization, powering up a touch module, detecting whether a touch signal is generated or not, and enabling a main control chip to be in a sleep mode;

the second step is that: starting up the key, enabling the main control chip to enter an awakening state, enabling the infrared sensor to enter a monitoring state by the main control chip, enabling the infrared transmitting end to transmit signals in an interval transmitting mode, and enabling the infrared receiving sensor to receive the signals;

the third step: monitoring triggering by an infrared sensor, judging infrared monitoring triggering when a signal received by the infrared receiving sensor is greater than a preset threshold value, transmitting a signal by an infrared transmitting end in an alternate transmitting mode after the infrared monitoring triggering, and entering the fourth step after the triggering;

the fourth step: the motor runs, the main control chip turns on the LDO control module of the motor, and the main control chip turns on a motor control signal to enable the motor to run;

the fifth step: pumping liquid by a pump, foaming, discharging liquid, and jumping to the second step.

In the second step, the transmission mode is to send a group of high and low level data at certain intervals, and then the high and low level data are sent again. In this embodiment, the high and low level data has a frequency of 32khz, a length of 16 groups, and an interval duration of 200 ms.

In the third step, the alternate transmission mode is to alternately transmit high-low level data and low level data. In this embodiment, the preset threshold is 0.6V, and the method of sending 16 sets of high and low level data and 32 sets of low level data plus 16 sets of high and low level data is adopted for alternation.

In the second step, the infrared receiving end receives data, when a user does not perform induction operation, the voltage signal received by the receiving end is smaller than 0.6V, in the third step, when the user performs induction operation, the voltage signal received by the receiving end is larger than 0.6V, when the voltage signal received by the receiving end is larger than 0.6V, the fourth step is carried out, and if the voltage signal is not triggered, the second step is circulated.

The liquid outlet device operation method further comprises the following steps: a method for preventing continuous triggering includes that when voltage signals received by an infrared receiving sensor are larger than 0.6V, a data transmitting mode of an infrared transmitting end is that 16 groups of high-low level data and 32 groups of low level data are transmitted alternately and 16 groups of high-low level data are added, when signals of an infrared receiving end are smaller than 0.3V, transmitting 16 groups of high-low level data at an interval of 200ms is recovered as transmitting signals of the infrared transmitting end, when alternate transmitting times are larger than a certain number of times, continuous triggering is judged, in the embodiment, when alternate transmitting times are larger than 20 times, continuous triggering is judged, when continuous triggering occurs, a pump only conducts liquid pumping once, foaming and liquid discharging operations, and then continuous triggering prompt appears on lamp beads.

The liquid outlet device operation method further comprises the following steps: a method of saving energy in which after an infrared sensor listens for a trigger, an infrared transmitter continues to transmit signals of fixed frequency and fixed length at 200ms intervals for a total of 10 transmissions, and if the 10 transmissions do not trigger, the infrared transmitter extends the interval of infrared transmissions. The extension in this embodiment is 288ms for listening. By changing the monitoring interval when the monitoring is not triggered, the power consumption can be greatly reduced, and the service life can be prolonged.

The liquid outlet device operation method further comprises the following steps: the method for preventing the mistaken touch of the key further comprises the following steps:

specifically, when a user touches a touch key, a level signal changes, the time is recorded as starting point time, the signal is monitored again after delay time, when the signal is recovered, effective operation is determined, key operation is executed, when the delay time is elapsed, the signal is monitored again, and when the signal keeps a changed state, the false touch operation is determined, and the key operation is not executed.

For example, when the user touches the touch key at the low level at the beginning, the low level is changed to the high level, at this time, the timer is started, the delay time, 0.8s in this example, elapses, the level signal is detected again, if the level signal is changed to the low level signal, it is considered to be a valid touch, the key operation is performed, and if the level signal is still the high level signal, the key operation is not performed.

Further, if the current machine is in the running state, the key operation is to shut down the machine, and if the current machine is in the shutdown state, the key operation is to start up the machine.

Through postponing the detection, can realize preventing the function that the button mistake touched, under the environment that this technical scheme product used, water spatters and is a very common state, touches the switch button when water, can change level signal, if touch the switch button when water and can trigger the button operation, then can lead to user experience to descend sharply, consequently through the delay detection in this technique, can avoid this problem.

The liquid outlet device operation method further comprises the following steps: the working mode switching method further comprises the following steps:

in the third step, when the infrared receiving sensor receives a signal greater than a preset threshold, the infrared transmitting terminal transmits the signal in an alternate transmission mode, the transmission data mode of the infrared transmitting terminal is to alternately transmit 16 groups of high-low level data, 2 groups of low level data and 16 groups of high-low level data, when the alternate transmission frequency is greater than a certain frequency, the infrared transmitting terminal judges that the working mode is changed, in the embodiment, when the alternate frequency is greater than 40 times, the working mode is judged to be changed, the mode is changed by changing the running time parameter of the pump, for example, the running time of 0.75 second is changed into 1.5 seconds, finally, the obtained liquid amount is different, and when the secondary trigger mode is changed, the use time can be changed back again, so that the switching at any time is realized. Through changing the mode of operation, can make this technique application more extensive, in the use place of difference, different service environment carries out the selection of different liquid output, in some worse service environment, liquid output demand is more, and is clean cleaner, under the better environment of some service environment, liquid output requirement is few for the liquid live time of equidimension is longer, practices thrift use cost.

Furthermore, the running time parameters can be directly written into the memory chip, the running parameters can be saved, so that the running parameters can be recorded after the mode is changed, and the previous set state can be maintained after the system is restarted.

Furthermore, the timing mode can be started when the alternation times are more than a certain number of times, the timing mode is ended when the hand leaves the infrared sensing induction area, the time is calculated through the alternation times, and the time is set to be the pump running time.

Furthermore, the time length of the timing mode can be overlapped with the time of the alternate emission mode, so that the use habit of a user is closer.

The liquid outlet device operation method further comprises the following steps: the hand washing duration prompting method further comprises the following steps: and after the fifth step, the lamp beads are lightened to prompt the user of the time for washing hands.

Further, the light-up cue may be constantly on for a color until a predetermined time.

Further, the light may blink until a predetermined time.

Further, the lights can be in different colors, each color can be constantly lighted for a predetermined time, the scheme can be based on different use scenes, and a user can select different times according to different prompts, for example, a blue light can be lighted for 30 seconds, a yellow light can be lighted for 40 seconds, a red light can be lighted for 30 seconds, the blue constantly lighted timing is used in the use environment of a common family, the yellow light can be used in a relatively public environment, and the red light prompt can be used in the environment of a hospital and the like which need to be killed.

Furthermore, the running water prompt can be carried out through a plurality of lamp beads, and the hand washing time is prompted through the form of turning off the lamp.

The infrared sensor still monitors when the user prompts, and if the infrared sensor is triggered, the prompting is interrupted, and the pump signal is processed preferentially.

The liquid outlet device operation method further comprises the following steps: the liquid outlet device liquid-free reminding method is characterized in that after the amount of liquid in a liquid storage bottle of the liquid outlet device is gradually reduced, when the amount of the liquid is not enough for one-time liquid outlet, redundant air can enter, the liquid outlet amount and air ratio of the liquid outlet device are unbalanced, the problem of liquid outlet and liquid hanging is finally caused, the serious problem that the liquid hanging covers a sensor light guide plate can be caused, repeated triggering can be caused, and the service life is prolonged. This technique realizes out liquid ware raffinate through the trigger power of monitoring pump and judges, and the style is different according to actual motor, sets up different standard values, compares with the standard value when the electric current of actual measurement motor, and when the difference exceeded the threshold value of predetermineeing, then judges empty load promptly to lack the liquid state, when the lack of liquid state appears, then carries out the suggestion of lacking the liquid through the lamp pearl to close the trigger detection of pump, when detecting triggering of sensor, carry out the suggestion operation, and do not carry out the pump liquid operation.

In order to reduce the problem of idle-load error prompt of the pump during the first use, the technology further performs liquid shortage prompt when the difference value of the pump detected for multiple times exceeds a preset threshold value. Thereby reducing the problem of false prompts. The detection times are determined by the power of the pump, the pipe diameter of the liquid suction pipe and the consistency of liquid in the liquid storage bottle, the detection times are in negative correlation with the power of the pump and the consistency of the liquid, and the detection times are in positive correlation with the pipe diameter of the liquid suction pipe. In this embodiment, if the detected time exceeds the preset threshold value for three times, it is determined that the liquid is deficient.

The above description is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (8)

1. A dispenser with a pressure equalisation device, comprising: the casing sets up at the inside work module of casing to and the stock solution bottle of being connected with the casing, its characterized in that: the shell comprises a bottom shell and an air pressure balancing device arranged on the bottom shell, the bottom shell comprises a groove matched with the liquid storage bottle, and the air pressure balancing device comprises an inner hole arranged in the groove of the bottom shell, a lateral hole arranged on the outer ring of the bottom shell and a connecting pipe communicated with the inner hole and the lateral hole.

2. The dispenser of claim 1, further comprising: the connecting pipe is provided with a one-way valve.

3. The dispenser of claim 2, further comprising: the one-way valve is a microporous valve.

4. A dispenser according to claim 3, characterized in that: the pore diameter of the microporous valve is less than twice the quotient of the liquid tension in the liquid storage bottle divided by the liquid gravity at the pore.

5. The dispenser of claim 2, further comprising: the one-way valve is a protruding structure which is formed by connecting pipe arms extending inwards, the protruding structure extends towards the center from the wall of the connecting pipe, and the protruding structures are alternately arranged.

6. The dispenser of claim 1, further comprising: the groove depth of the bottom shell is smaller than the bottle mouth length of the liquid storage bottle, after the bottom shell and the liquid storage bottle are assembled, a distance exists between the bottom shell and the liquid storage bottle, and the side hole is not in contact with the liquid storage bottle.

7. The dispenser of claim 1, further comprising: and a groove sealing ring is arranged around the top of the groove.

8. The dispenser of claim 1, further comprising: and a bottom shell sealing ring is also arranged between the bottom shell and the side shell.

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