CN212465811U - Liquid outlet device - Google Patents

Abstract

The utility model provides a liquid discharging device, the bottle comprises a bottle body, plug and pump head device, the movably bottle that is located of plug, logical groove has been seted up to the terminal surface that the bottle is relative with the open end, the pump head device includes the shroud, press the pump, actuating mechanism, induction element and control panel, the shroud can be dismantled the lid and close the open end and form the stock solution chamber between plug and the bottle, the fluting has been seted up to the first terminal surface that the shroud borders on with the open end, the imbibition mouth that presses the pump inserts in the fluting and is linked together with the stock solution chamber, the second terminal surface that the liquid outlet of pressing the pump runs through the shroud extends outwards, actuating mechanism and control panel are located the shroud, the steerable press the pump of actuating mechanism absorbs the liquid in the stock solution chamber and carries liquid to the liquid outlet, actuating mechanism is connected. The liquid outlet device is an automatic sensing liquid outlet device, is convenient to use, avoids liquid from being deteriorated by contacting with air, overcomes the problem of liquid accumulation in the existing bottle, and is sanitary, environment-friendly and wide in application range.

Description

Liquid outlet device

Technical Field

The utility model belongs to the technical field of bathing and the clean nursing device technique of individual and specifically relates to an automatic response goes out liquid device.

Background

Contact infection of viruses is one of the main infection modes, and contact public goods increase the risk of virus transmission, so that more and more people begin to pay attention to public health safety, and the market demand of liquid outlet devices which are essential in public places and daily households is increasing.

A play liquid device in the market is manual press liquid device at present, through artificially manually pressing ground with the help of external force output liquid, this kind of liquid device's simple structure is suitable for daily house use, but in pressing the use, liquid or water easily adhere on the shower nozzle, breed bacterium easily on the shower nozzle and remain the virus, it is convenient inadequately to use, the user needs the contact to press, cause secondary pollution easily, and can produce the unhygienic scheduling problem of hand touch when many people use, the risk of contact infection has greatly been increased. Meanwhile, when the liquid outlet device is pressed manually to discharge liquid, force is required to be exerted, and inconvenience is brought to children, old people and users with small strength. In addition, the manual pressing liquid outlet device belongs to disposable articles, and the repeated utilization rate is not high due to the fact that most bottle mouths are too small.

Another liquid outlet device in the market at present is an automatic sensing liquid outlet device, which is commonly used in areas such as hotels, shopping malls, hotels, office buildings, family toilets and the like, and is a device which is not directly contacted by hands and provides liquid through sensing. However, the liquid outlet pump driving mechanism of the existing automatic sensing liquid outlet device is complex, large in size, large in occupied space, inconvenient to install, limited in use place and not suitable for common public places. In addition, the automatic sensing liquid outlet device needs to be periodically supplemented with liquid, and the uncovering structure of the existing automatic sensing liquid outlet device is generally protruded along the edge of a bottle mouth so as to be convenient for people to uncover when replacing liquid, and the structure has the defects of large volume, unattractive appearance and the like.

In addition, the existing liquid outlet device uses a hose to stretch into a bottle to suck liquid, so that liquid residue is formed at the bottom of the bottle and on the inner wall of the bottle to form accumulated liquid, the accumulated liquid is easy to deteriorate, and a user easily causes potential safety hazards such as secondary pollution and insanitation once the deteriorated accumulated liquid is used. If the accumulated liquid is removed or the liquid outlet device is directly discarded, the phenomenon of resource waste is caused.

Disclosure of Invention

The utility model mainly aims to provide an automatic sensing liquid outlet device which has wide application range, is sanitary and environment-friendly and is convenient to use.

In order to realize the main purpose of the utility model, the utility model provides a liquid outlet device, which comprises a bottle body, a rubber plug and a pump head device, wherein the pump head device is detachably covered at the opening end of the bottle body, the rubber plug is movably positioned in the bottle body, the end surface of the bottle body opposite to the opening end is provided with a through groove, the pump head device comprises a cover cap, a pressing pump, a driving mechanism, a sensing unit and a control panel, the cover cap is detachably covered at the opening end and forms a liquid storage cavity with the rubber plug and the bottle body, the first end surface of the cover cap adjacent to the opening end is provided with a notch, a liquid suction port of the pressing pump is inserted into the notch and communicated with the liquid storage cavity, a liquid outlet of the pressing pump extends outwards through the second end surface of the cover cap opposite to the first end surface, the driving mechanism and the control panel are positioned in the cover cap, the sensing unit is arranged on the cover and electrically connected with the control panel.

It is visible by above scheme, it is when using to go out the liquid device, the user need not manual pressing or extrusion, but only place hand or article in induction element department, make induction element can sense, thereby signal to the control panel, the control panel sends control signal to actuating mechanism afterwards, actuating mechanism will control and press the liquid that the pump absorbs the stock solution intracavity and carry liquid to the liquid outlet, thereby realized need not manual pressing and the mesh of auto-induction play liquid, moreover, the steam generator is simple in structure, high durability and convenient use, can put the occasion use in the difference, wide application scope.

Wherein, the stock solution chamber that forms between shroud, plug and the bottle is a sealed vacuum cavity, and the logical groove on the terminal surface that the bottle is relative with the open end admits air and makes atmospheric pressure uniform action on the plug for the plug is along with pressing the liquid of pump absorption stock solution intracavity and towards the shroud lift removal. The plug advances like the syringe towards the shroud from the bottom of bottle under the effect of atmospheric pressure, guarantees the vacuum in stock solution chamber to stabilize the position of plug, make the liquid of stock solution intracavity contactless air or bacterium during the use, effectively avoided liquid to produce rotten because of contacting with the air, sanitary conditions is good.

Moreover, the imbibition mouth according to the press pump inserts in the fluting and is linked together with the stock solution chamber, uses the hose to stretch into the bottle and absorbs liquid relatively now, and the imbibition mouth according to the press pump does not extend to the stock solution intracavity to there is not hydrops to produce, sanitary environmental protection. Meanwhile, other structures of the pump head device are sealed in the cover cap, liquid in the liquid storage cavity cannot permeate into the cover cap, and other structures in the cover cap are prevented from being polluted, so that the working reliability of other structures of the pump head device is guaranteed.

In addition, the pump head device can be dismantled the lid and close at the open end of bottle, and the plug can follow and dismantle in the bottle and come out, makes things convenient for the inside of bottle to wash after liquid uses up at every turn in the bottle to and wash the plug, and then cyclic utilization. In addition, even if the bottle body is damaged to some extent, the whole liquid outlet device cannot be immediately used, and the liquid outlet device can be continuously used in a mode of replacing the bottle body, so that the universality and the practicability of the liquid outlet device are enhanced. And under the condition of ensuring sufficient electric quantity, the liquid outlet device can be recycled, so that the phenomena of resource waste and environmental pollution caused by directly discarding the existing disposable liquid outlet device after the liquid is consumed can be reduced and reduced, and resources are effectively saved and the environment is protected.

The utility model provides a further scheme is, the press pump includes drain pipe and pipette, and the pipette is located the shroud, and the pipette mouth is the first port of pipette, and the second end of pipette has a piston cavity, and the first end perisporium evagination of drain pipe is provided with the piston, and the piston is movably located the piston cavity, and the second end of drain pipe runs through the second end of shroud and extends outwards, and the liquid outlet is the second port of drain pipe, and the relative pipette of drive mechanism steerable drain pipe removes.

The driving mechanism comprises a motor, a driving wheel, a driven wheel, a screw rod nut and a pressing plate, wherein the pressing plate is sleeved on the liquid outlet pipe and connected with the screw rod nut, the screw rod nut is rotatably sleeved on the screw rod, the screw rod extends in the axial direction of the liquid suction pipe and is rotatably supported on the first end face of the cover cap, the driven wheel is sleeved at one end of the screw rod, a driving shaft of the motor is rotatably supported on the first end face of the cover cap, the driving wheel is sleeved on the driving shaft and is mutually meshed with the driven wheel, and the motor is electrically connected with the control panel.

The pump head device further comprises a first bearing and a second bearing, a first mounting hole and a second mounting hole are formed in the first end face of the cover cap, the first bearing is sleeved on the screw rod and mounted in the first mounting hole, and the second bearing is sleeved on the driving shaft and mounted in the second mounting hole.

The further scheme is that the periphery wall of open end is provided with the external screw thread, and the first terminal surface epirelief of shroud is provided with the rampart, and the internal perisporium of rampart is provided with the internal thread, and the internal thread is connected with the external screw thread cooperation, and is provided with the sealing washer between internal thread and the external screw thread.

The cover is provided with a battery bin for placing a battery, and the battery is electrically connected with the control panel.

In a further aspect, the sensing unit includes a sensing area disposed on a sidewall of the cover and an infrared sensor disposed on the control board.

In a further aspect, the sensing region and the outlet are located on the same side of the cover.

The control panel is provided with an indicating lamp, and the indicating lamp is arranged opposite to the sensing area.

According to a further scheme, the pump head device further comprises a distance sensor and an operation panel, the distance sensor is located in the cover cap and used for sensing a pressing stroke of the pressing pump, the operation panel is located on the side wall of the cover cap and used for adjusting liquid output of the liquid outlet, and the distance sensor and the operation panel are respectively electrically connected with the control panel.

Drawings

Fig. 1 is a first view structural diagram of the liquid outlet device of the present invention.

Fig. 2 is a second view structural diagram of the liquid outlet device of the present invention.

Fig. 3 is an exploded view of the liquid outlet device of the present invention.

Fig. 4 is a structural diagram of a pump head device in an embodiment of the liquid outlet device of the present invention.

Fig. 5 is an exploded view of the pump head device in the embodiment of the liquid dispensing device of the present invention.

Fig. 6 is a partial structural view of a pump head device in an embodiment of a liquid dispensing device of the present invention.

Fig. 7 is an exploded view of a pump head device according to an embodiment of the present invention.

Fig. 8 is a sectional view of the liquid outlet device of the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 1 to 3, the present embodiment discloses a liquid outlet device 1, which includes a bottle body 2, a rubber plug 4 and a pump head device 3, wherein the pump head device 3 is detachably covered on an open end 22 of the bottle body 2. The rubber plug 4 is movably positioned in the bottle body 2, and a through groove 21 is formed in the end surface of the bottle body 2 opposite to the opening end 22. The elastic rubber plug 4 is in interference fit with the inner peripheral wall of the bottle body 2, and the rubber plug 4 has elasticity, so that the rubber plug 4 can move along the inner peripheral wall of the bottle body 2 in the height direction of the bottle body 2. The plug 4 can be dismantled out from the bottle 2, makes things convenient for the inside of bottle 2 to wash after liquid uses up at every turn in the bottle 2 to and wash plug 4, and then cyclic utilization.

Referring to fig. 4 to 8, the pump head device 3 includes a cover cap 31, a pressing pump, a driving mechanism, a first bearing 318, a second bearing 319, a sensing unit, a control panel, a distance sensor and an operation panel, the cover cap 31 is detachably covered on the open end 22 of the bottle body 2, and a liquid storage cavity 5 is formed between the cover cap 31, the rubber plug 4 and the bottle body 2, the liquid storage cavity 5 is used for storing liquids, such as relatively viscous liquids like hand washing liquid, shampoo, bath lotion, laundry detergent, and the like, and liquids like skin lotion, makeup remover, essence and the like close to clear water, so that the application range of the liquid outlet device 1 is wide. The first end surface 314 of the cover cap 31 adjacent to the opening end 22 of the bottle body 2 is provided with a groove 3141, the liquid suction port 362 of the pressing pump is inserted into the groove 3141 and communicated with the liquid storage cavity 5, and the liquid outlet 3211 of the pressing pump penetrates through the second end surface 311 of the cover cap 31 opposite to the first end surface 314 and extends outwards. The driving mechanism and the control panel are located in the cover cap 31, the driving mechanism can control the pressing pump to suck liquid in the liquid storage cavity 5 and convey the liquid to the liquid outlet 3211, the driving mechanism is electrically connected with the control panel, and the sensing unit is arranged on the cover cap 31 and electrically connected with the control panel.

When the liquid outlet device 1 is used, a user does not need to manually press or extrude the liquid outlet device, but only places hands or articles at the sensing unit, so that the sensing unit can sense the liquid outlet device, and then sends a signal to the control panel, and the control panel sends a control signal to the driving mechanism, and the driving mechanism can control the pressing pump to suck the liquid in the liquid storage cavity 5 and convey the liquid to the liquid outlet 3211, so that the purpose of automatic liquid outlet sensing without manual pressing is realized. Wherein, stock solution chamber 5 that forms between shroud 31, plug 4 and the bottle 2 is a sealed vacuum cavity, and the logical groove 21 on the relative terminal surface of bottle 2 and open end 22 admits air and makes the even effect of atmospheric pressure on plug 4 for plug 4 rises along with pressing the pump and absorbing the liquid in stock solution chamber 5 and move towards shroud 31. The plug 4 advances towards shroud 31 like the syringe under the effect of atmospheric pressure from the bottom of bottle 2, guarantees the vacuum in stock solution chamber 5 to stabilize the position of plug 4, make the liquid in the stock solution chamber 5 contactless air or bacterium during the use, effectively avoided liquid to produce rotten because of contacting with the air, sanitary conditions is good. In addition, other structures of the pump head device 3 are sealed in the cover cap 31, and the liquid in the liquid storage chamber 5 cannot permeate into the cover cap 31, so that other structures in the cover cap 31 are prevented from being polluted, and the working reliability of other structures of the pump head device 3 is ensured. Moreover, the liquid suction port 362 of the pressing pump is inserted into the groove 3141 and communicated with the liquid storage cavity 5, and compared with the prior art that a hose is used to extend into a bottle to suck liquid, the liquid suction port 362 of the pressing pump does not extend into the liquid storage cavity 5, so that no liquid accumulation is generated, and the pressing pump is sanitary and environment-friendly.

The pressing pump of this embodiment is a vacuum pressing pump, and comprises a liquid outlet pipe 32 and a liquid suction pipe 36, wherein the liquid suction pipe 36 is located in the cover cap 31, the liquid suction port 362 is a first port of the liquid suction pipe 36, and a second end of the liquid suction pipe 36 is provided with a piston cavity 361. A piston 3221 is convexly arranged on the peripheral wall of the first end 322 of the liquid outlet pipe 32, the piston 3221 is movably located in the piston cavity 361, a vacuum cavity 363 is formed between the piston 3221 and one end of the piston cavity 361 far away from the liquid suction port 362, the second end 321 of the liquid outlet pipe 32 extends outwards through the second end surface 311 of the cover 31, the liquid outlet 3211 is a second port of the liquid outlet pipe 32, and the driving mechanism can control the liquid outlet pipe 32 to move relative to the liquid suction pipe 36. The driving mechanism comprises a motor 37, a driving wheel 38, a driven wheel 39, a screw rod 310, a screw rod nut 317 and a pressing plate 35, wherein the pressing plate 35 is sleeved on the liquid outlet pipe 32 and connected with the screw rod nut 317, the screw rod nut 317 is rotatably sleeved on the screw rod 310, the screw rod 310 extends in the axial direction of the liquid suction pipe 36 and is rotatably supported on the first end surface 314 of the cover 31, and the driven wheel 39 is sleeved at one end of the screw rod 310. The driving shaft of the motor 37 is rotatably supported on the first end surface 314 of the cover 31, the driving wheel 38 is sleeved on the driving shaft of the motor 37 and is meshed with the driven wheel 39, and the motor 37 is electrically connected with the control panel. Specifically, the first end surface 314 of the cover 31 is provided with a first mounting hole 3143 and a second mounting hole 3142, the first bearing 318 is sleeved on the screw 310 and mounted in the first mounting hole 3143, and the second bearing 319 is sleeved on the driving shaft of the motor 37 and mounted in the second mounting hole 3142.

The induction unit sends a signal to the control panel, the drive shaft of control panel control motor 37 drives drive wheel 38 and rotates work, because drive wheel 38 and follow driving wheel 39 intermeshing, thereby the drive drives lead screw 310 from driving wheel 39 and rotates, make screw-nut 317 hold-in range dynamic pressure board 35 press at the axial displacement of lead screw 310, and drive drain pipe 32 and press at the axial displacement of lead screw 310, then piston 3221 of drain pipe 32 removes in the piston cavity 361 of pipette 36 and presses, thereby liquid in the adsorbable stock solution chamber 5 is carried to liquid outlet 3211 through imbibition mouth 362, thereby realize that the response is automatic to press out liquid. The pump head device 3 is fixed on the screw rod nut 317 through the pressing plate 35 and is in threaded fit with the screw rod 310, the motor 37 controls the screw rod 310 to rotate through forward and reverse rotation and transmission of the gear structure, and the pressing plate 35 is finally moved up and down.

The outer peripheral wall of the open end 22 of the bottle body 2 of the present embodiment is provided with an external thread 221, the first end surface 314 of the cover cap 31 is convexly provided with an annular wall 315, the inner peripheral wall of the annular wall 315 is provided with an internal thread 316, the internal thread 316 is in fit connection with the external thread 221, and a sealing ring is arranged between the internal thread 316 and the external thread 221, so as to ensure that the liquid in the liquid storage chamber 5 cannot overflow through the connection between the cover cap 31 and the bottle body 2. Because the shroud 31 is detachably connected with the bottle body 2 through the screw thread fit, even if the bottle body 2 is damaged, the whole liquid outlet device 1 cannot be immediately used, and the liquid outlet device 1 can be ensured to be continuously used through the mode of replacing the bottle body 2, so that the universality and the practicability of the liquid outlet device 1 are enhanced. In addition, under the condition of ensuring sufficient electric quantity, the liquid outlet device 1 can be recycled, so that the phenomena of resource waste and environmental pollution caused by directly discarding the existing disposable liquid outlet device 1 after liquid is consumed can be reduced and reduced, and resources are effectively saved and the environment is protected.

The cover 31 is provided with a battery compartment 34 for placing a battery, and the battery is electrically connected with the control panel, so that a power supply required by the operation of the whole liquid outlet device 1 is ensured. Specifically, the side wall of the cover 31 is provided with a first avoiding groove 312 disposed through, the battery compartment 34 is located on the first end surface 314 of the cover 31, the open end of the battery compartment 34 is located in the first avoiding groove 312, and the open end of the battery compartment 34 is covered with a battery cover. The battery is a rechargeable lithium battery, and is charged through a wired plug, and after being fully charged, the battery is taken out from the plug and is installed in the battery bin 34 for continuous use. The rechargeable lithium battery can be repeatedly charged for use, and the practical range is wider. Wherein, the size of the battery can be adjusted according to the size of the battery compartment 34.

The present embodiment adopts the infrared sensing technology to realize automatic sensing of pressing liquid, specifically, the sensing unit includes a sensing area 33 disposed on the sidewall of the cover 31 and an infrared sensor disposed on the control panel, and the infrared sensor faces the sensing area 33. The sensing area 33 is a translucent or transparent plastic cover with an oval, circular, or rectangular shape, which plays a role in protection and facilitates sensing of hands or objects.

For facilitating liquid discharge, the liquid outlet pipe 32 is L-shaped, a first end 322 of the liquid outlet pipe 32 extends in the height direction of the bottle body 2, a second end 321 of the liquid outlet pipe 32 extends in the height direction perpendicular to the bottle body 2, and the sensing area 33 and the liquid outlet 3211 at the second end 321 of the liquid outlet pipe 32 are located on the same side of the cover cap 31. In addition, still be provided with pilot lamp and on & off switch on the control panel, the pilot lamp sets up with induction zone 33 is relative, is provided with shift knob on the induction zone 33, and shift knob corresponds the setting with the on & off switch and is used for opening and closing of control on & off switch. Wherein, the pilot lamp is the LED lamp, plays and shows that auto-induction pump head device 3 is opened, is shut down, the suggestion of 3 operating condition of pump head device to and whether infrared inductor has the suggestion of response, and can glimmer different colours, for example red, green, yellow, blue etc..

The distance sensor is located in the cover 31 and used for sensing the pressing stroke of the pressing pump, the operation panel is located on the side wall of the cover 31 and used for adjusting the liquid output of the liquid outlet 3211, and the distance sensor and the operation panel are respectively electrically connected with the control panel. Specifically, the operation panel is located in the sensing area 33, and a user can adjust the liquid outlet amount of the liquid outlet 3211 through the operation panel, and the liquid outlet amount is transmitted to the distance sensor through the control panel, and the distance sensor is used for sensing the pressing stroke of the movement of the pressing plate 35, so as to obtain a preferable liquid outlet amount. The distance sensor is used for accurately sensing the position height of the pressing plate 35, so that the purposes of stable liquid outlet and proper liquid outlet are achieved. The sidewall of the cover 31 of this embodiment is provided with a second avoiding groove 313 penetrating therethrough, and the sensing region 33 is located in the second avoiding groove 313.

The bottle body 2 of the present embodiment can be made of a transparent material, which can facilitate the observation of the remaining amount of the liquid in the liquid storage chamber 5, or a transparent observation window can be arranged on the bottle body 2.

When the infrared inductor senses that human body or object are close to, the pilot lamp twinkles, and control panel control motor 37's drive shaft corotation is rotated by gear structure transmission control lead screw 310, and clamp plate 35 is fixed on screw-nut 317 with lead screw 310 screw-thread fit to realize that clamp plate 35 drives drain pipe 32 and presses down the removal, realize responding to automatic press liquid. When the pressing plate 35 is pressed to reach the designated position, the distance sensor transmits a sensing signal to the control panel, the control panel controls the driving shaft of the motor 37 to rotate reversely, so that the pressing plate 35 moves upwards in a resetting mode, the indicating lamp is turned off, and sensing automatic pressing liquid discharging is achieved.

The utility model discloses go out liquid device 1 and press out liquid device for the auto-induction, avoid cross contact infection, and convenient to use. Meanwhile, the bottle body 2 can be detached and cleaned, and then liquid is poured into the bottle body for recycling, so that the bottle is sanitary and environment-friendly. The pump head device 3 is sealed and isolated from the bottle body 2 through the cover cap 31, so that the liquid is prevented from permeating into the cover cap 31 to influence the working operation of other structures in the cover cap 31. The estimated volume of the liquid storage body in the liquid storage cavity 5 is up to 1.8 liters, the method is suitable for various places, the application range is wide, frequent supply is not needed, and the workload of workers is reduced in public places. The liquid storage cavity 5 formed between the cover cap 31, the rubber plug 4 and the bottle body 2 is a sealed vacuum cavity, and the vacuum principle is adopted, so that the phenomenon of liquid accumulation in the traditional bottle body 2 is overcome, and liquid deterioration caused by contact with air is avoided. In addition, the liquid outlet device 1 is internally provided with a battery, can be used in different occasions and has wide application range. Moreover, the utility model discloses go out liquid device 1's dismouting, maintenance, change liquid are simple convenient, simple structure.

Above embodiment is the preferred example of the utility model, and not the restriction the utility model discloses the range of implementing, the event all according to the utility model discloses the equivalent change or the decoration that structure, characteristic and principle were done of application for patent scope all should be included in the utility model discloses the patent application scope.

Claims (10)

1. Go out liquid device, including bottle and pump head device, the pump head device can be dismantled the lid and close the open end of bottle, its characterized in that:

the liquid outlet device also comprises a rubber plug which is movably positioned in the bottle body, and a through groove is formed in the end surface of the bottle body opposite to the opening end;

the pump head device comprises a cover cap, a pressing pump, a driving mechanism, an induction unit and a control panel, wherein the cover cap is detachably covered at the opening end and forms a liquid storage cavity with the rubber plug and the bottle body, and a first end face of the cover cap, which is adjacent to the opening end, is provided with a notch;

a liquid suction port of the pressing pump is inserted into the groove and communicated with the liquid storage cavity, a liquid outlet of the pressing pump penetrates through the cover cap, a second end face opposite to the first end face extends outwards, and the driving mechanism and the control panel are located in the cover cap;

the driving mechanism can control the pressing pump to suck the liquid in the liquid storage cavity and convey the liquid to the liquid outlet, the driving mechanism is electrically connected with the control panel, and the sensing unit is arranged on the cover and electrically connected with the control panel.

2. The liquid outlet device of claim 1, wherein:

the pressing pump comprises a liquid outlet pipe and a liquid suction pipe, the liquid suction pipe is positioned in the cover cap, the liquid suction port is a first port of the liquid suction pipe, and a second end of the liquid suction pipe is provided with a piston cavity;

a piston is convexly arranged on the peripheral wall of the first end of the liquid outlet pipe, the piston is movably positioned in the piston cavity, the second end of the liquid outlet pipe penetrates through the second end face of the cover cap and extends outwards, and the liquid outlet is a second port of the liquid outlet pipe;

the driving mechanism can control the liquid outlet pipe to move relative to the liquid suction pipe.

3. The liquid outlet device of claim 2, wherein:

the driving mechanism comprises a motor, a driving wheel, a driven wheel, a screw rod nut and a pressing plate, the pressing plate is sleeved on the liquid outlet pipe and is connected with the screw rod nut, the screw rod nut is rotatably sleeved on the screw rod, the screw rod extends in the axial direction of the liquid suction pipe and is rotatably supported on the first end face of the cover cap, and the driven wheel is sleeved at one end of the screw rod;

the driving shaft of the motor is rotatably supported on the first end face of the cover cap, the driving wheel is sleeved on the driving shaft and meshed with the driven wheel, and the motor is electrically connected with the control panel.

4. The liquid outlet device according to claim 3, characterized in that:

the pump head device further comprises a first bearing and a second bearing, a first mounting hole and a second mounting hole are formed in the first end face of the cover cap, the first bearing is sleeved on the screw rod and mounted in the first mounting hole, and the second bearing is sleeved on the driving shaft and mounted in the second mounting hole.

5. The liquid outlet device of claim 1, wherein:

the periphery wall of open end is provided with the external screw thread, the first terminal surface epirelief of shroud is provided with the rampart, the internal perisporium of rampart is provided with the internal thread, the internal thread with external screw thread fit connection, just the internal thread with be provided with the sealing washer between the external screw thread.

6. The liquid outlet device of claim 1, wherein:

the cover is provided with a battery bin for placing a battery, and the battery is electrically connected with the control panel.

7. The liquid outlet device of claim 1, wherein:

the sensing unit comprises a sensing area arranged on the side wall of the cover and an infrared sensor arranged on the control panel.

8. The liquid outlet device of claim 7, wherein:

the sensing area and the liquid outlet are positioned on the same side of the cover cap.

9. The liquid outlet device of claim 8, wherein:

the control panel is provided with an indicator light, and the indicator light and the induction area are arranged oppositely.

10. The tapping device according to any one of claims 1 to 9, characterized in that:

the pump head device further comprises a distance sensor and an operation panel, the distance sensor is located in the cover cap and used for sensing a pressing stroke of the pressing pump, the operation panel is located on the side wall of the cover cap and used for adjusting the liquid output of the liquid outlet, and the distance sensor and the operation panel are respectively electrically connected with the control panel.

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