CN214936004U - Air zero-contact water feeder and fresh-keeping liquid-taking system - Google Patents

Abstract

The utility model discloses a zero contact hydrophone of air and fresh-keeping liquid system of getting, the zero contact hydrophone of air includes: a cap including a sleeve portion and a connection end surface provided at one end of the sleeve portion; the first end of the water guide core is connected with one side of the connecting end face, the second end of the water guide core extends along the direction far away from the connecting end face and extends out of the other end of the sleeve part, and the outer diameter of the water guide core is gradually increased along the direction from the second end to the first end of the water guide core; the outer peripheral surface of the water guide core is provided with a liquid inlet and an annular clamping groove, a first channel communicated with the liquid inlet is formed in the water guide core, and the annular clamping groove is positioned between the second end of the water guide core and the liquid inlet; the pipeline joint is arranged on the other side of the connecting end face, back to the water guide core, and a second channel communicated with the liquid outlet and the first channel is formed in the pipeline joint. The utility model discloses an air zero contact water feeder can stop outside air entering bucket and pollute quality of water getting the liquid in-process.

Description

Air zero-contact water feeder and fresh-keeping liquid-taking system

Technical Field

The utility model belongs to the technical field of get the liquid ware, concretely relates to air zero contact water feeder and fresh-keeping liquid system of getting.

Background

In the related art, there are two types of water dispensers, one is a water dispenser that stores barreled water at the top of the water dispenser when in use, and the other is a water dispenser that stores barreled water at the bottom of the water dispenser when in use, the latter principle is to store a drinking water bucket at the bottom of the water dispenser, extend a water pipe at the barrel cover of the drinking water bucket, and pump the water in the drinking water bucket to a heating part or a refrigerating part or a water outlet of the water dispenser by a water pump. For the water intaking ware of former type, the water intaking ware of latter type is when changing the bottled water, owing to need not to lift certain height with the bottled water, consequently saves time more laborsaving when changing the bottled water to receive consumer's favor gradually.

However, in the latter type of water intake device, since the long silicone tube or stainless steel tube is inserted into the bottom of the barrel by hand during each use, the external air enters the drinking water barrel to directly contact with the drinking water to pollute the water quality, and thus the water intake method is not hygienic and is not good for the health of drinking water for users.

The vacuum fresh-keeping soft barreled water different from the traditional barreled water has the characteristic of keeping the water fresh, air leakage cannot occur when the vacuum fresh-keeping soft barreled water is communicated with a water taking device, a water pipe in contact with water cannot be contacted by hands, and the traditional water taking device cannot meet the requirements of the vacuum fresh-keeping soft barreled water.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above shortcoming of prior art, the utility model aims to provide an air zero contact water feeder and fresh-keeping liquid system of getting for the soft bucket aquatic products of vacuum preservation, aim at solving current water feeder in the use, outside air gets into in the scuttlebutt easily and with the hand during use with the water pipe go deep into the technical problem of the contaminated water quality that the barrel head brought.

The utility model discloses a reach its purpose, the technical scheme who adopts as follows:

an air zero contact water loader comprising:

the cap comprises a sleeve part used for matching the water barrel cover and a connecting end surface arranged at one end of the sleeve part;

the first end of the water guide core is connected with one side of the connecting end face, the second end of the water guide core extends along the direction far away from the connecting end face and extends out of the other end of the sleeve part, and the outer diameter of the water guide core is gradually increased along the direction from the second end to the first end of the water guide core; a liquid inlet and an annular clamping groove are formed in the peripheral surface of the water guide core, a first channel communicated with the liquid inlet is formed in the water guide core, the annular clamping groove is located between the second end of the water guide core and the liquid inlet, and the water guide core and the sleeve portion are coaxially arranged;

the pipeline joint is provided with a liquid outlet, the pipeline joint is arranged on the other side of the connecting end face, which is back to the water guide core, and a second channel communicated with the liquid outlet and the first channel is arranged in the pipeline joint.

Furthermore, a first boss is arranged on one side, back to the pipeline joint, of the connecting end face, the first end of the water guide core is connected with the connecting end face through the first boss, and the outer diameter of the first boss is larger than that of the first end of the water guide core.

Furthermore, a second boss is arranged on one side, back to the water guide core, of the connecting end face, one end of the pipeline joint is connected with the connecting end face through the second boss, and the other end of the pipeline joint is provided with the liquid outlet.

Further, the second end of the water guide core is provided with a circular arc surface.

Further, the pipe joint is round platform shape, just the external diameter that the pipe joint is close to the one end of connection terminal surface is greater than the pipe joint is kept away from the external diameter of the other end of connection terminal surface.

Further, the air zero-contact water feeder is of an injection-molded integrated structure.

Further, the air zero-contact water feeder also comprises a one-way valve connected with the pipeline joint, and the one-way valve sleeve is arranged on the pipeline joint or a liquid inlet of the one-way valve is communicated with the liquid outlet of the pipeline joint.

Further, the sleeve portion has a hexagonal prism shape.

Further, the air zero-contact water feeder also comprises a hollow inner cylinder and a push rod assembly which can reset and move along the length direction of the first channel;

the inner cylinder is arranged in the first channel and divides the first channel into a first cavity and a second cavity communicated with the second channel, and the surface of the inner cylinder is provided with a liquid inlet hole corresponding to the liquid inlet;

the first end of the push rod assembly penetrates through the inner cylinder, the second end of the push rod assembly penetrates through the end face of the second end of the water guide core, a gap is formed between the inner wall of the inner cylinder and the push rod assembly, a liquid flow channel which is respectively communicated with the first cavity, the second cavity and the liquid inlet hole is formed, and the liquid inlet is communicated with the second cavity after passing through the liquid inlet hole and the liquid flow channel;

the surface of the push rod assembly is provided with a hole blocking piece which is arranged corresponding to the liquid inlet hole and can reset and move along the width direction of the push rod assembly, wherein when the second end of the push rod assembly is compressed and contracted into the first chamber, the hole blocking piece releases the blocking of the liquid inlet hole; when the pressed state of the second end of the push rod assembly is released, the hole plugging piece plugs the liquid inlet hole.

Furthermore, the push rod assembly comprises a rod body and a first elastic piece, wherein the first end of the rod body penetrates through the inner cylinder, and the second end of the rod body penetrates through the end face of the second end of the water guide core; the first elastic piece is connected with the rod body to provide elastic restoring force when the pressed state of the second end of the rod body is relieved, so that the hole plugging piece plugs the liquid inlet hole.

Further, the rod body comprises a shaft rod and a shaft sleeve, the first end of the shaft rod penetrates through the inner cylinder, and the shaft sleeve penetrates through the end face of the second end of the water guide core and is sleeved on the second end of the shaft rod; the first elastic piece is located in the first cavity, one end of the first elastic piece is abutted against the inner barrel, and the other end of the first elastic piece is abutted against the shaft sleeve.

Further, the hole plugging piece comprises a hole plug matched with the liquid inlet hole and a second elastic piece arranged along the width direction of the push rod assembly, one side surface of the hole plug is in sliding contact with the inner wall of the inner cylinder, and the other side surface of the hole plug is fixedly connected with the surface of the push rod assembly through the second elastic piece; when the pressed state of the second end of the push rod assembly is released, the hole plug seals the liquid inlet hole under the action of the elastic restoring force of the second elastic piece.

Furthermore, the push rod assembly is provided with a mounting hole on the surface, the second elastic piece is located in the mounting hole, the hole plug is in sliding fit with the mounting hole, and the other side surface of the hole plug is fixedly connected with the side wall of the mounting hole through the second elastic piece.

Furthermore, one end of the inner cylinder, which is close to the first chamber, is provided with an opening, the liquid flow channel is communicated with the first chamber through the opening, and the push rod assembly is sleeved with a first sealing element which is arranged corresponding to the opening; wherein the first seal seals off the opening when the second end of the pushrod assembly is compressed into the first chamber.

Further, a second sealing element is sleeved on the outer surface of the inner cylinder and located between the liquid inlet hole and the first chamber and/or located between the liquid inlet hole and the second chamber.

Furthermore, the joint between the inner wall of the inner cylinder and the liquid inlet hole is an arc surface.

Correspondingly, the utility model also provides a fresh-keeping liquid system of getting, this fresh-keeping liquid system of getting includes the connecting pipe, contains the liquid ware of getting of water pump, compressible soft cask and aforementioned air zero contact water feeder, the bung hole department of soft cask is equipped with the bung, the bung has and supplies the interface that the water guide core passes through and is used for sealing the closing cap of interface, wherein:

the sleeve part is sleeved on the water barrel cover;

the water guide core penetrates through the insertion port and pushes the sealing cover open to extend into the inner cavity of the soft water barrel, the water guide core is tightly matched with the inner wall of the insertion port, and the second end of the water guide core extends into the inner cavity of the sealing cover and is clamped with the sealing cover through the annular clamping groove;

one end of the connecting pipe is communicated with the liquid outlet of the pipeline joint, and the other end of the connecting pipe is communicated with the water inlet of the water pump.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides an air zero contact water feeder, on one hand, through setting up the cap that is used for lock the water barrel lid, when the cap lock is covered on the cask, utilize the sleeve part to carry out inseparable parcel and utilize the link to shelter from in the outlet port department of water barrel lid to the outer wall of water barrel lid, thus can avoid outside air to enter the outlet port department of water barrel lid, realized the once isolation of outside air; on the other hand, the water guide core for conducting water flow is arranged, and the outer diameter of the water guide core is gradually increased from the water inlet end to the water outlet end, so that when the water guide core penetrates through the water barrel cover and is inserted into the inner cavity of the soft water barrel, the outer wall of the water guide core can be tightly attached to the inner wall of the water barrel cover, external air can be prevented from entering the soft water barrel from a gap between the water guide core and the water barrel cover to pollute water quality in the liquid taking process, and secondary isolation of the external air is realized; on the other hand, the annular clamping groove for clamping the sealing cover is arranged on the peripheral surface of the water guide core, so that when the water guide core pushes the sealing cover of the water barrel cover to enter the inner cavity of the soft water barrel, the sealing cover can be clamped by the annular clamping groove, the sealing cover can enter the inner cavity of the soft water barrel along with the water guide core, and the sealing effect between the water guide core and the water barrel cover can be prevented from being influenced by the existence of the sealing cover; therefore, the cap and the water guide core are matched for use, the double sealing effect can be achieved, meanwhile, the water guide core and the annular clamping groove are matched for use, the sealing performance between the water guide core and the water barrel cover can be ensured, the phenomenon that water quality is polluted when external air enters the soft water barrel in the liquid taking process of a user by using the liquid taking device can be effectively avoided, and air zero contact of liquid in the barrel in the liquid taking process is realized; in addition, the arrangement of the cap can reduce the risk of water quality pollution caused by the fact that the water guide core is touched by the hand of a user in the process of inserting the water guide core into the inner cavity of the soft water barrel.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a perspective view of an air zero-contact water feeder according to an embodiment of the present invention at a first viewing angle;

fig. 2 is a perspective view of the air zero-contact water feeder according to an embodiment of the present invention at a second viewing angle;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a perspective view of a zero contact air feeder according to another embodiment of the present invention;

FIG. 5 is a top view of FIG. 4;

fig. 6 is a front view of an air zero contact water feeder in an embodiment of the present invention;

fig. 7 is a cross-sectional view of an air zero contact water feeder in an embodiment of the present invention;

FIG. 8 is a cross-sectional view of an air zero contact water loader according to another embodiment of the present invention;

FIG. 9 is an enlarged schematic view at A of FIG. 8;

fig. 10 is a cross-sectional view of an inner barrel according to an embodiment of the present invention;

fig. 11 is a sectional view of a water guide core according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a fresh-keeping liquid-taking system according to an embodiment of the present invention;

fig. 13 is a sectional view of a fresh-keeping liquid-extracting system according to an embodiment of the present invention;

FIG. 14 is a sectional view of a fresh-keeping liquid-extracting system according to another embodiment of the present invention

FIG. 15 is an enlarged schematic view at B of FIG. 14;

FIG. 16 is a top view of the inner barrel of FIG. 15.

Description of reference numerals:

1-cap, 11-sleeve portion, 12-connecting end face, 131-first boss, 132-second boss;

2-water guide core, 21-liquid inlet, 22-first channel, 221-first cavity, 222-second cavity, 23-ring clamping groove and 24-end hole;

3-a pipe joint, 31-a liquid outlet and 32-a second channel;

4-soft water bucket, 41-water bucket cover, 411-sealing cover and 412-plug interface;

5-connecting pipe;

6-a one-way valve;

7-inner cylinder, 71-liquid inlet hole, 72-liquid flow channel, 73-opening hole, 74-annular groove;

8-push rod assembly, 81-first elastic element, 821-shaft lever, 822-shaft sleeve;

9-a hole plugging piece, 91-a hole plug, 92-a second elastic piece;

101-a first seal, 102-a second seal.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, 2, 6, 7, 12 and 13, an embodiment of the present invention provides an air zero-contact water feeder, which is used in a bucket mouth of a compressible soft water bucket 4, and after being used in combination with a water pipe, the air zero-contact water feeder can communicate an inner cavity of the soft water bucket 4 with a water-taking device (such as a water dispenser with a water pump, a tea maker, a hot drink maker, etc.) having a water-pumping function, so that the water-taking device can take out liquid (such as mineral water, fruit juice, etc.) in the soft water bucket 4 for a user to drink, specifically, the air zero-contact water feeder comprises:

the cap 1, the cap 1 includes the sleeve part 11 used for cooperating with water barrel cover 41 and connecting end surface 12 set in one end of the sleeve part 11;

the water guide core 2 is columnar, a first end of the water guide core 2 is connected with one side of the connecting end surface 12, a second end of the water guide core 2 extends along the direction far away from the connecting end surface 12 and extends out from the other end of the sleeve part 11, and the outer diameter of the water guide core 2 is gradually increased along the direction from the second end to the first end of the water guide core 2; a liquid inlet 21 and an annular clamping groove 23 are arranged on the peripheral surface of the water guide core 2, a first channel 22 communicated with the liquid inlet 21 is arranged in the water guide core 2, the annular clamping groove 23 is positioned between the second end of the water guide core 2 and the liquid inlet 21, and the water guide core 2 and the sleeve portion 11 are coaxially arranged (specifically, the axis of the water guide core 2 coincides with the axis of the sleeve portion 11, and the axis of the sleeve portion 11 coincides with the axis of the pipeline joint 3);

the pipe joint 3 is provided with a liquid outlet 31, the pipe joint 3 is arranged at the other side of the connecting end surface 12 back to the water guide core 2, and a second channel 32 communicated with the liquid outlet 31 and the first channel 22 is arranged inside the pipe joint 3.

For convenience of understanding and explanation, the present embodiment takes a water dispenser with a water pump as an example to illustrate the usage principle of the air zero-contact water feeder of the present embodiment, which is as follows:

before using, the water pipe communicates the air zero-contact water feeder with the water pump in the water dispenser: specifically, one end of a water pipe is communicated with a water inlet of a water pump, and the other end of the water pipe is butted with a pipeline joint 3;

when in use, the water guide core 2 jacks the sealing cover 411 at the water outlet of the water barrel cover 41, so that the water guide core 2 is completely inserted into the soft water barrel 4, and the cap cover 1 is buckled on the water barrel cover 41; in the process of taking liquid by using the water dispenser, under the action of the water pump, the liquid in the soft water barrel flows in from the liquid inlet 21 of the water guide core 2, then flows out from the liquid outlet 31 of the pipeline joint 3, and is finally pumped to the water outlet of the water dispenser for drinking. Wherein, at the in-process of getting liquid, along with the liquid in the soft cask 4 is taken out gradually and is reduced, atmospheric pressure in the bucket can be less than the atmospheric pressure outside the bucket, and then under atmospheric pressure difference's effect, the ladle body of soft cask can be compressed gradually and become "short" for the sustainable liquid that keeps in contact with in the soft cask 4 of water guide core 2, in order to guarantee to get the continuation of liquid.

Therefore, according to the air zero-contact water feeder provided by the embodiment, on one hand, by arranging the cap 1 for fastening the water barrel cover 41, when the cap 1 is fastened on the water barrel cover 41, the sleeve part 11 is used for tightly wrapping the outer wall of the water barrel cover 41 and the connecting end surface 12 is used for shielding the water outlet of the water barrel cover 41, so that external air can be prevented from entering the water outlet of the water barrel cover 41, and one-time isolation of the external air is realized; on the other hand, by arranging the water guide core 2 for conducting water flow, and because the outer diameter of the water guide core 2 gradually increases from the water inlet end to the water outlet end, when the water guide core 2 passes through the water barrel cover 41 and is inserted into the inner cavity of the soft water barrel 4, the outer wall of the water guide core 2 can be tightly attached to the inner wall of the water barrel cover 41 (the water barrel cover 41 is generally made of plastic and has certain elasticity), so that external air in the liquid taking process can be prevented from entering the soft water barrel 4 from the gap between the water guide core 2 and the water barrel cover 41 to pollute water, and secondary isolation of the external air is realized; on the other hand, by arranging the annular clamping groove 23 for clamping the sealing cover 411 on the outer peripheral surface of the water guide core 2, when the water guide core 2 pushes the sealing cover 411 of the water barrel cover 41 to enter the inner cavity of the soft water barrel 4, the sealing cover 411 can be clamped by the annular clamping groove 23, so that the sealing cover 411 can enter the inner cavity of the soft water barrel 4 along with the water guide core 2, and the sealing property between the water guide core 2 and the water barrel cover 41 can be prevented from being influenced by the existence of the sealing cover 411; so, use through collocating cap 1 and water guide core 2, can play double seal's effect, use through collocating water guide core 2 and ring groove 23 simultaneously, can ensure the leakproofness between water guide core 2 and the water drum lid 41 to can effectively avoid the user at the in-process that uses the liquid ware of getting to get the liquid, outside air gets into in the soft cask 4 and pollutes quality of water, has realized getting the air zero contact of liquid in the liquid in-process bucket. Moreover, the outer diameter of the water guide core 2 gradually increases from the water inlet end to the water outlet end, so that the water guide core can adapt to water barrel covers 41 with different water outlet apertures, and the air zero-contact water feeder of the embodiment can have a wider application range; in addition, the arrangement of the cap can reduce the risk of water quality pollution caused by the fact that the water guide core is touched by the hand of a user in the process of inserting the water guide core into the inner cavity of the soft water barrel 4.

Further, referring to fig. 1, 6 and 7, in an exemplary embodiment, a first boss 131 is disposed on a side of the connection end surface 12 facing away from the pipe joint 3, the first end of the water guiding core 2 is connected to the connection end surface 12 through the first boss 131, and an outer diameter of the first boss 131 is greater than an outer diameter of the first end of the water guiding core 2.

In this embodiment, based on the above structural design, the convex structure with an outer diameter larger than that of the water guide core 2 is disposed at the connection position between the water guide core 2 and the connection end surface 12, so that the connection strength of the water guide core 2 can be enhanced, and the risk of breaking the water guide core 2 in the use process is reduced.

Further, referring to fig. 1, 3 and 6, in an exemplary embodiment, a second boss 132 is disposed on a side of the connection end surface 12 facing away from the water guiding core 2, one end of the pipe joint 3 is connected to the connection end surface 12 through the second boss 132, and the other end of the pipe joint 3 has the liquid outlet 31. Wherein, optionally, referring to fig. 4 and 5, the vertical projection of the second boss 132 on the connecting end surface 12 is in a drop shape, so that the whole air zero-contact water applicator has more artistic feeling.

In this embodiment, based on above-mentioned structural design, set up the boss structure that the external diameter is greater than the pipe joint 3 external diameter through the junction between pipe joint 3 and connection terminal surface 12, so, can strengthen pipe joint 3's joint strength on the one hand, on the other hand when the one end with the water pipe is docked with pipe joint 3, second boss 132 can provide the impetus for the finger for user's installation operation can be light convenient more.

Further, referring to fig. 1, 2, 6, 7 and 13, in an exemplary embodiment, a plurality of liquid inlet ports 21 are provided on an outer circumferential surface of the water guiding core 2, and at least two liquid inlet ports 21 are arranged at intervals along a length direction of the water guiding core 2.

In the present embodiment, based on the above structural design, on one hand, by providing a plurality of liquid inlets 21 on the outer peripheral surface of the water guide core 2, it is beneficial to increase the liquid supply speed when the liquid in the soft water bucket 4 is large; on the other hand, by arranging the liquid inlet ports 21 longitudinally, the water guide core 2 can be better adapted to different liquid level heights.

Further, referring to fig. 2, 6 and 7, in an exemplary embodiment, the second end of the water guiding core 2 has an arc surface (not labeled in the figures), so that the water guiding core 2 can conveniently enter the inner cavity of the sealing cover 411 during the process that the water guiding core 2 pushes the sealing cover 411 of the water barrel cover 41, and the stressed area between the water guiding core 2 and the sealing cover 411 is reduced, so as to better push the sealing cover 411.

Further, referring to fig. 6, 7 and 13, in an exemplary embodiment, the pipe joint 3 is frustoconical and an outer diameter of one end of the pipe joint 3 near the connection end surface 12 is larger than an outer diameter of the other end of the pipe joint 3 away from the connection end surface 12.

In this embodiment, based on above-mentioned structural design, through the round platform shape with pipe joint 3 design for "width under the narrow top is favorable to improving the convenience of being connected between pipe joint 3 and the water pipe and improving sealed effect on the one hand, on the other hand makes the water pipe of pipe joint 3 adaptable more pipe diameter specifications.

Further, referring to fig. 1, 2, 6 and 7, in an exemplary embodiment, the air zero contact water loader is an injection molded one-piece structure, which is advantageous for maintaining the sealing performance of the internal channel of the air zero contact water loader on one hand and reducing the manufacturing cost of the air zero contact water loader on the other hand.

Further, referring to fig. 1, 6, 12 and 13, in an exemplary embodiment, the air zero-contact water feeder further includes a check valve 6 connected to the pipe joint 3, wherein the check valve 6 is sleeved on the pipe joint 3 or a liquid inlet of the check valve 6 is communicated with a liquid outlet 31 of the pipe joint 3 (specifically, the liquid inlet of the check valve 6 is communicated with the liquid outlet 31 of the pipe joint 3 through a pipe, illustratively, the check valve 6 is disposed on the connecting pipe 5, and the check valve 6 is disposed near an end of the connecting pipe 5 connected to the pipe joint 3).

In this embodiment, based on above-mentioned structural design, through addding check valve 6 that is connected with pipe joint 3, make the in-process of utilizing the liquid intaking ware to get liquid, the liquid in soft water bucket 4 can only follow water guide core 2 to the one-way outflow of pipe joint 3 direction, and the liquid behind the admission pipe then can't flow back to soft water bucket 4 in, so, can avoid the liquid backward flow and reduce the fresh degree of quality of water in the bucket on the one hand, on the other hand, in some concrete use scenes, can avoid appearing the weeping phenomenon because of the liquid backward flow after extracting the one end of water pipe from pipe joint 3.

Further, referring to fig. 1, 6 and 12, in an exemplary embodiment, the sleeve portion 11 is hexagonal prism-shaped, so that by designing the sleeve portion 11 to be hexagonal prism-shaped, compared with the cylindrical shape, the contact area between the sleeve portion 11 and the palm of the user can be increased, so that in the process of inserting the air zero-contact water applicator onto the water barrel cover 41, the friction force between the sleeve portion 11 and the palm of the user can be increased, and the installation operation of the user can be easier and more convenient.

Further, referring to fig. 8-12 and 14-16, in an exemplary embodiment, the air zero contact water loader further comprises a hollow inner barrel 7 and a push rod assembly 8 resettable along the length of the first channel 22;

the inner cylinder 7 is arranged in the first channel 22 and divides the first channel 22 into a first chamber 221 and a second chamber 222 communicated with the second channel 32, and the surface of the inner cylinder 7 is provided with a liquid inlet hole 71 corresponding to the liquid inlet 21;

the first end of the push rod assembly 8 penetrates through the inner cylinder 7, the second end of the push rod assembly 8 penetrates through the end face of the second end of the water guide core 2 (specifically, the end face of the second end of the water guide core 2 is provided with an end hole 24, the second end of the push rod assembly 8 penetrates through the end hole 24), a gap exists between the inner wall of the inner cylinder 7 and the push rod assembly 8, a liquid flow channel 72 which is respectively communicated with the first cavity 221, the second cavity 222 and the liquid inlet hole 71 is formed, and the liquid inlet 21 is communicated with the second cavity 222 after passing through the liquid inlet hole 71 and the liquid flow channel 72;

the surface of the push rod assembly 8 is provided with a hole blocking piece 9 which is arranged corresponding to the liquid inlet hole 71 and can reset and move along the width direction of the push rod assembly 8, wherein when the second end of the push rod assembly 8 is compressed and contracted into the first chamber 221, the hole blocking piece 9 releases the blocking of the liquid inlet hole 71; when the second end of the push rod assembly 8 is released from the pressure state, the hole blocking member 9 blocks the liquid inlet hole 71.

In this embodiment, the first end of the water guide core 2 is detachably connected to one side of the connection end surface 12, and in specific implementation, the first end of the water guide core 2 can be detachably connected to one side of the connection end surface 12 through insertion (such as interference fit), threaded connection and the like, for example, an internal thread can be arranged on the inner wall of the first boss 131, an external thread is arranged on the first end of the water guide core 2, and then the water guide core 2 is fixed to one side of the connection end surface 12 through threaded connection.

In the embodiment, the air zero-contact water feeder has the following use principle:

before the water guide core 2 is inserted into the inner cavity of the soft water barrel 4, the second end of the push rod assembly 8 extends out of the first chamber 221, and the liquid inlet hole 71 is in a state of being blocked by the hole blocking piece 9;

when the water guide core 2 is inserted into the inner cavity of the soft water barrel 4, the second end of the push rod assembly 8 is pressed due to the fact that the second end of the push rod assembly 8 is in top contact with the sealing cover 411, so that the push rod assembly 8 gradually moves upwards, the hole blocking member 9 moves upwards along with the push rod assembly 8 and gradually separates from the liquid inlet hole 71 due to the extrusion of the inner wall of the inner barrel 7, the liquid inlet hole 71 is gradually opened, and the liquid inlet 21 is communicated with the second chamber 222;

when the water guide core 2 pushes the sealing cover 411 of the water barrel cover 41 open and enters the inner cavity of the soft water barrel 4, the annular clamping groove 23 on the water guide core 2 clamps the sealing cover 411 of the water barrel cover 41, so that the sealing cover 411 can enter the inner cavity of the soft water barrel 4 along with the water guide core 2, at the moment, as the sealing cover 411 'wraps' the second end of the water guide core 2, the second end of the push rod assembly 8 is kept in a pressed state (namely, blocked by the sealing cover 411) and cannot extend out of the end hole 24, so that the liquid inlet 21 and the second chamber 222 can be kept in a communicated state, and the liquid flow in the subsequent liquid taking process is ensured to be smooth;

in the process of taking liquid by using the water dispenser, under the action of the water pump, the liquid in the soft water barrel 4 sequentially flows into the liquid flow channel 72 after passing through the liquid inlet 21 and the liquid inlet hole 71, then sequentially flows out of the liquid outlet 31 of the pipe joint 3 after passing through the second cavity 222 and the second channel 32, and is finally pumped to the water outlet of the water dispenser for drinking by a user;

when the user pulls the water guiding core 2 out of the soft water barrel 4 (for example, when the liquid in the soft water barrel 4 is used up and the water in the soft water barrel needs to be replaced), the cover 411 is reset to the corresponding position of the water barrel cover 41 and separated from the second end of the water guiding core 2, so that the pressed state of the second end of the push rod assembly 8 is released and reset (specifically, when the pressed state of the second end of the push rod assembly 8 is released, the push rod assembly 8 moves downwards, the second end of the push rod assembly 8 extends out of the end hole 24 to block the end hole 24), and during the resetting of the push rod assembly 8, the hole blocking member 9 gradually returns to the position opposite to the liquid inlet hole 71 to block the liquid inlet hole 71, so that the liquid inlet 21 is isolated from the second chamber 222, and further, when the water guiding core 2 is pulled out of the soft water barrel 4, dust, impurities and the like in the external air can be prevented from entering the water guiding core 2 and polluting the liquid flow passages such as the first passage 22 and the like, thereby further having reduced the contaminated risk of liquid in the liquid process of getting the bucket, further having improved the drinking water health of user.

Therefore, the air zero-contact water feeder of the embodiment can ensure the normal operation of the liquid taking process by carrying out the structural design, and can prevent dust, impurities and the like in the external air from entering the water guide core 2 to pollute liquid flow channels such as the first channel 22 and the like after the water guide core 2 is drawn out from the soft water barrel 4, so that the sanitation of the liquid flow channels is improved, and the drinking water health of a user is further improved. In this embodiment, it should be noted that the number of the hole plugging members 9 is adapted to the number of the liquid inlets 21, and each hole plugging member 9 is disposed in one-to-one correspondence with each liquid inlet 21, and preferably, two hole plugging members 9 are disposed and symmetrically disposed.

Further, referring to fig. 8, 9 and 15, in an exemplary embodiment, the push rod assembly 8 includes a rod (not shown) and a first elastic member 81, wherein a first end of the rod extends through the inner cylinder 7, and a second end of the rod extends through an end surface of a second end of the water guide core 2; the first elastic member 81 is connected to the rod body to provide an elastic restoring force when the pressed state of the second end of the rod body is released, so that the hole-blocking member 9 blocks the liquid inlet hole 71.

In the present embodiment, based on the above-mentioned structural design, the push rod assembly 8 can move along the length direction of the first channel 22, specifically, when the water guide core 2 is inserted into the inner cavity of the soft water barrel 4, the second end of the rod body is pressed by contacting the sealing cover 411, so that the rod body gradually moves upward, and the first elastic member 81 is gradually compressed; and when the user draws the water guide core 2 out of the soft water barrel 4, the pressed state of the second end of the rod body is released, and the rod body gradually moves downwards under the action of the elastic restoring force of the first elastic piece 81, so that the resetting is realized. In this embodiment, it should be noted that the first elastic element 81 may be a spring, a leaf spring, an elastic band, or other devices with good elastic properties, and in addition, there are various connection manners between the first elastic element 81 and the rod body as long as the rod body can move up and down along the length direction of the first channel 22, for example, the first elastic element 81 may be a leaf spring, and two opposite ends of the leaf spring are respectively connected to the side wall of the first chamber 221 and the side surface of the rod body; for another example, the first elastic element 81 may also be a spring, the spring is sleeved on the rod body, one end of the spring is connected to the rod body, and the other end of the spring abuts against the lower end of the inner cylinder 7; for another example, the first elastic element 81 may also be a spring, the spring is sleeved on the rod, one end of the spring is connected to the rod, and the other end of the spring is connected to the sidewall of the second chamber 222 or the sidewall of the first boss 131 (for example, a ring-shaped protrusion may be protruded from the sidewall of the first boss 131, one end of the spring is connected to the rod, and the other end of the spring abuts against the ring-shaped protrusion). And so on, are not further enumerated herein.

Further, referring to fig. 8, 9 and 15, in an exemplary embodiment, the rod body includes a shaft 821 and a sleeve 822, a first end of the shaft 821 penetrates through the inner cylinder 7, and the sleeve 822 penetrates through an end surface of the second end of the water guiding core 2 and is sleeved on the second end of the shaft 821; the first elastic element 81 is located in the first chamber 221, one end of the first elastic element 81 abuts against the inner cylinder 7, and the other end of the first elastic element 81 abuts against the bushing 822. In a specific implementation, the connection between the second end of the shaft 821 and the sleeve 822 may be a plug-in connection (e.g., an interference fit), a threaded connection, and the like, which is not limited in this embodiment.

In the present embodiment, based on the above structure design, not only the rod body can be reset and moved along the length direction of the first channel 22, but also the installation of the push rod assembly 8 can be facilitated. In this embodiment, the working principle of the push rod assembly 8 is described by taking the first elastic member 81 as a spring as an example, which is as follows: when the end of sleeve 822 is compressed, sleeve 822 moves up along with shaft 821 as a whole, at which time the spring is compressed; when the end of the sleeve 822 is released from the pressed state, the sleeve 822 moves downward together with the stem 821 to return to the original position by the elastic restoring force of the spring. In this embodiment, when the first elastic member 81 is a spring, the spring may be cylindrical or spiral with a "wide top and narrow bottom".

Further, referring to fig. 8, 9, 15 and 16, in an exemplary embodiment, the hole blocking member 9 includes a hole plug 91 fitted to the liquid inlet hole 71 and a second elastic member 92 disposed along a width direction of the push rod assembly 8, one side surface of the hole plug 91 is in sliding contact with an inner wall of the inner cylinder 7, and the other side surface of the hole plug 91 is fixedly connected to a surface of the push rod assembly 8 by the second elastic member 92; when the pressure state of the second end of the push rod assembly 8 is released, the hole plug 91 blocks the liquid inlet hole 71 under the elastic restoring force of the second elastic member 92.

In the present embodiment, based on the above structural design, the hole blocking member 9 is reset in the width direction of the shaft 821, so that when the end of the shaft sleeve 822 is compressed into the first chamber 221, the hole blocking member 9 can open the liquid inlet hole 71 to ensure smooth liquid flow in the subsequent liquid taking process, and when the end of the shaft sleeve 822 is released from the compressed state, the hole blocking member 9 can block the liquid inlet hole 71 to isolate the second chamber 222 from the liquid inlet 21, thereby preventing dust, impurities, etc. in the external air from entering the water guide core 2 to contaminate the liquid flow passages such as the first passage 22, etc. Specifically, when the water guide core 2 is inserted into the inner cavity of the soft water barrel 4, the end of the shaft sleeve 822 is pressed due to the top contacting the cover 411, so that the shaft sleeve 822 moves upward together with the shaft 821, and the hole plug 91 moves upward along with the shaft 821 and gradually separates from the liquid inlet hole 71 due to the extrusion of the inner wall of the inner barrel 7, so that the liquid inlet hole 71 is gradually opened, so that the liquid inlet 21 is communicated with the second chamber 222, and at this time, the first elastic member 81 and the second elastic member 92 are both in a compressed state; when the water guide core 2 pushes the sealing cover 411 of the water barrel cover 41 open and enters the inner cavity of the soft water barrel 4, the annular clamping groove 23 on the water guide core 2 clamps the sealing cover 411 of the water barrel cover 41, so that the sealing cover 411 can enter the inner cavity of the soft water barrel 4 along with the water guide core 2, and at the moment, as the sealing cover 411 'wraps' the second end of the water guide core 2, the end part of the shaft sleeve 822 is kept in a pressed state and cannot extend out of the end hole 24, so that the liquid inlet 21 and the second chamber 222 can be kept in a communicated state, and smooth liquid flow in the subsequent liquid taking process is ensured; when the user pulls the water guiding core 2 out of the soft water barrel 4, the cover 411 is reset to the corresponding position of the water barrel cover 41 and separated from the second end of the water guiding core 2, so that the pressed state of the end portion of the shaft sleeve 822 is released, the shaft sleeve 822 and the shaft stem 821 integrally move downward together under the action of the elastic restoring force of the first elastic member 81, the end portion of the shaft sleeve 822 extends out of the end hole 24 to block the end hole 24, the hole plug 91 is driven by the shaft stem 821, the hole plug 91 slides downward along the inner wall of the inner barrel 7, and when the hole plug 91 returns to the position opposite to the liquid inlet hole 71, the side of the hole plug 91 facing the inner barrel 7 is sprung into the liquid inlet hole 71 under the action of the elastic restoring force of the second elastic member 92 to block the liquid inlet hole 71, so that the liquid inlet 21 is isolated from the second chamber 222.

In this embodiment, it should be noted that the second elastic member 92 may be a spring, a spring sheet, an elastic ribbon, or other devices with good elastic performance; in addition, the specific shape of the hole plug 91 can be flexibly designed according to the requirement, as long as it can be ensured that the side of the hole plug 91 facing the inner cylinder 7 can keep sliding contact with the inner wall of the inner cylinder 7 and the hole plug 91 can block the liquid inlet hole 71 when the hole plug 91 faces the liquid inlet hole 71, for example, when the liquid inlet 21 is in a circular hole shape, the shape of the side of the hole plug 91 facing the inner cylinder 7 can be a circular arc surface (specifically, the shape of the whole hole plug 91 can be spherical, hemispherical, bullet head shape, etc.); for another example, when the inlet port 21 is rectangular, the shape of the side of the plug 91 facing the inner cylinder 7 may be a wedge shape in which both upper and lower sides are inclined (specifically, in this case, the shape of the entire plug 91 may be a truncated pyramid shape in the side facing the inner cylinder 7 and a prism shape, a cylindrical shape, or the like in the side facing away from the inner cylinder 7). And so on, are not further enumerated herein. In addition, it should be noted that, in the implementation, it is required to ensure that the holding force of the cover 411 on the second end of the water guide core 2 is greater than the elastic restoring force of the first elastic member 81, and the elastic restoring force of the first elastic member 81 is greater than the friction force between the inner wall of the inner cylinder 7 and the hole plug 91.

Further, referring to fig. 8, 9 and 15, in an exemplary embodiment, a surface of the push rod assembly 8 is provided with a mounting hole (not labeled), the second elastic member 92 is located in the mounting hole, the hole plug 91 is slidably engaged with the mounting hole, and another side surface of the hole plug 91 is fixedly connected with a side wall of the mounting hole through the second elastic member 92.

In this embodiment, based on the above structural design, the hole plug 91 is positioned by providing the mounting hole, so that the stability and smoothness of the hole plug 91 in sliding contact with the inner wall of the inner cylinder 7 can be improved in the process of moving the shaft 821 up and down, and the opening or closing of the liquid inlet hole 71 by the hole plug 91 can be better controlled. In this embodiment, when the liquid inlet 21 is a circular hole, the shape of the side of the plug 91 facing the inner cylinder 7 may be a hemisphere surface, and the side of the plug 91 facing away from the inner cylinder 7 may be a solid or hollow cylinder.

Further, referring to fig. 8, 9, 10 and 15, in an exemplary embodiment, an end of the inner barrel 7 near the first chamber 221 has an opening 73, the liquid flow channel 72 communicates with the first chamber 221 through the opening 73, and the push rod assembly 8 is sleeved with a first sealing member 101 disposed corresponding to the opening 73; wherein the first seal 101 seals off the opening 73 when the second end of the push rod assembly 8 is compressed into the first chamber 221. Illustratively, the first sealing element 101 is sleeved on the shaft 821 and disposed corresponding to the opening 73 at the lower end of the inner cylinder 7, and in a specific implementation, the first sealing element 101 may be a sealing ring, as long as the requirement of use can be met, which is not specifically limited in this embodiment.

In the present embodiment, based on the above-mentioned structure design, after the water guiding core 2 is inserted into the inner cavity of the soft water barrel 4, the first sealing member 101 can move upward along with the shaft 821 and block the opening 73, so as to prevent the liquid from flowing into the first chamber 221 and contacting with the first elastic member 81; after the water guiding core 2 is drawn out from the soft water barrel 4, the first sealing member 101 can move downwards along with the shaft 821 and unblock the opening 73, and the liquid inlet hole 71 is in a state of being blocked by the hole plug 91, and the end hole 24 at the second end of the water guiding core 2 is also in a state of being blocked by the shaft sleeve 822, so that the risk of external air entering the first chamber 221 can be reduced; so, on the one hand through avoiding getting liquid when liquid and first elastic component 81 contact, on the other hand through avoiding water guide core 2 to take out the back outside air and contact with first elastic component 81 to in some concrete use scenarios (for example when first elastic component 81 is the spring), can reduce first elastic component 81 and take place the rusty risk of oxidation, thereby be favorable to improving the life of first elastic component 81 and further reduce the risk that gets liquid in-process liquid and receive the pollution, reach the healthy effect of further improvement user's drinking water.

Further, referring to fig. 9, 10 and 15, in an exemplary embodiment, a second sealing element 102 is sleeved on an outer surface of the inner cylinder 7 (illustratively, the outer surface of the inner cylinder 7 is provided with an annular groove 74 for mounting the second sealing element 102), and the second sealing element 102 is located between the liquid inlet hole 71 and the first chamber 221 and/or between the liquid inlet hole 71 and the second chamber 222 (preferably, the second sealing element 102 is disposed between the liquid inlet hole 71 and the first chamber 221 and between the liquid inlet hole 71 and the second chamber 222). So arranged, it is beneficial to improve the sealing performance between the inner cylinder 7 and the first channel 22. In one embodiment, the second sealing element 102 may be a sealing ring.

Further, referring to the figures, in an exemplary embodiment, the intersection between the inner wall of the inner cylinder 7 and the liquid inlet hole 71 is a circular arc surface. With the arrangement, the friction force between the contour edge of the liquid inlet hole 71 and the hole plug 91 is reduced in the process that the hole plug 91 is separated from or bounced into the liquid inlet hole 71, so that the hole plug 91 can be separated from or bounced into the liquid inlet hole 71 more smoothly, and the risk of foreign matters generated between the contour edge of the liquid inlet hole 71 and the hole plug 91 due to friction can be reduced.

Correspondingly, referring to fig. 1 to 16, the embodiment of the utility model provides a liquid system is got in freshness still, this liquid system is got in freshness includes connecting pipe 5 (optionally, this connecting pipe 5 is the food grade material hose), the liquid ware of getting that contains the water pump (not shown in the figure), compressible soft water bucket 4 and the air zero contact water feeder in above-mentioned arbitrary embodiment, the bung hole department of soft water bucket 4 is equipped with water barrel lid 41, water barrel lid 41 has interface 412 (being the delivery port of water barrel lid 41) that can supply water core 2 to pass through and is used for sealing the closing cap 411 of interface 412, wherein:

the sleeve part 11 is sleeved on the water barrel cover 41;

the water guide core 2 penetrates through the plug port 412 and pushes the sealing cover 411 open, then extends into the inner cavity of the soft water barrel 4, the water guide core 2 is tightly matched with the inner wall of the plug port 412, and the second end of the water guide core 2 extends into the inner cavity of the sealing cover 411 and is clamped with the sealing cover 411 through the annular clamping groove 23;

one end of the connecting pipe 5 is communicated with the liquid outlet 31 of the pipe joint 3, and the other end of the connecting pipe 5 is communicated with the water inlet of the water pump.

In this embodiment, the liquid taking device may be a water taking device with a water pumping function, such as a water dispenser, a tea making machine, a hot beverage machine, and the like, which is not limited in this embodiment. The soft water bucket 4 may be a compressible drinking water bucket as described in the utility model patent application with application number CN202010067241.3 (publication number: CN111232372B) filed on 20.1.2020 by the applicant, or may be other types of compression type soft water buckets, as required, and the embodiment is not particularly limited thereto. The water barrel cover 41 may be a cover as required in the utility model patent application with application number CN202010540856.3 (publication number: CN111674708A) filed on 12.6.2020 by the applicant, or may be another type of cover, and this embodiment is not limited in particular. In this embodiment, thanks to the improvement of the air zero-contact water feeder, the fresh-keeping liquid-taking system of this embodiment has the same technical effect as the air zero-contact water feeder, and will not be described herein again. In particular, in order to further improve the sealing effect between the socket 412 and the water guide core 2, the socket 412 is preferably a hollow cylindrical structure with a wide top and a narrow bottom.

It should be noted that the other contents of the air zero-contact water feeder and the fresh-keeping liquid-taking system disclosed by the present invention can be referred to the prior art, and are not described herein again.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

Furthermore, it should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the concepts of the present invention utilize the equivalent structure transformation of the content of the specification and the attached drawings, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (10)

1. An air zero contact water loader, characterized in that it comprises:

the cap comprises a sleeve part used for matching the water barrel cover and a connecting end surface arranged at one end of the sleeve part;

the first end of the water guide core is connected with one side of the connecting end face, the second end of the water guide core extends along the direction far away from the connecting end face and extends out of the other end of the sleeve part, and the outer diameter of the water guide core is gradually increased along the direction from the second end to the first end of the water guide core; a liquid inlet and an annular clamping groove are formed in the peripheral surface of the water guide core, a first channel communicated with the liquid inlet is formed in the water guide core, the annular clamping groove is located between the second end of the water guide core and the liquid inlet, and the water guide core and the sleeve portion are coaxially arranged;

the pipeline joint is provided with a liquid outlet, the pipeline joint is arranged on the other side of the connecting end face, which is back to the water guide core, and a second channel communicated with the liquid outlet and the first channel is arranged in the pipeline joint.

2. The air zero-contact water feeder according to claim 1, wherein a first boss is arranged on a side of the connecting end surface facing away from the pipeline joint, the first end of the water guide core is connected with the connecting end surface through the first boss, and the outer diameter of the first boss is larger than that of the first end of the water guide core;

and/or a second boss is arranged on one side of the connecting end face, which is back to the water guide core, one end of the pipeline joint is connected with the connecting end face through the second boss, and the other end of the pipeline joint is provided with the liquid outlet.

3. An air zero contact water applicator according to claim 1 or 2,

the second end of the water guide core is provided with an arc surface;

and/or the pipeline joint is in a circular truncated cone shape, and the outer diameter of one end, close to the connecting end face, of the pipeline joint is larger than that of the other end, far away from the connecting end face, of the pipeline joint;

and/or the air zero-contact water feeder is an injection molding integrated structure;

and/or the air zero-contact water feeder also comprises a one-way valve connected with the pipeline joint, wherein the one-way valve sleeve is arranged on the pipeline joint or a liquid inlet of the one-way valve is communicated with the liquid outlet of the pipeline joint;

and/or the sleeve portion has a hexagonal prism shape.

4. The air zero contact water loader of claim 1, further comprising a hollow inner barrel and a push rod assembly that is resettable along the length of the first channel;

the inner cylinder is arranged in the first channel and divides the first channel into a first cavity and a second cavity communicated with the second channel, and the surface of the inner cylinder is provided with a liquid inlet hole corresponding to the liquid inlet;

the first end of the push rod assembly penetrates through the inner cylinder, the second end of the push rod assembly penetrates through the end face of the second end of the water guide core, a gap is formed between the inner wall of the inner cylinder and the push rod assembly, a liquid flow channel which is respectively communicated with the first cavity, the second cavity and the liquid inlet hole is formed, and the liquid inlet is communicated with the second cavity after passing through the liquid inlet hole and the liquid flow channel;

the surface of the push rod assembly is provided with a hole blocking piece which is arranged corresponding to the liquid inlet hole and can reset and move along the width direction of the push rod assembly, wherein when the second end of the push rod assembly is compressed and contracted into the first chamber, the hole blocking piece releases the blocking of the liquid inlet hole; when the pressed state of the second end of the push rod assembly is released, the hole plugging piece plugs the liquid inlet hole.

5. The air zero-contact water feeder according to claim 4, wherein the push rod assembly comprises a rod body and a first elastic element, a first end of the rod body penetrates through the inner cylinder, and a second end of the rod body penetrates through an end face of a second end of the water guide core; the first elastic piece is connected with the rod body to provide elastic restoring force when the pressed state of the second end of the rod body is relieved, so that the hole plugging piece plugs the liquid inlet hole.

6. The air zero-contact water feeder according to claim 5, wherein the rod body comprises a shaft rod and a shaft sleeve, the first end of the shaft rod penetrates through the inner cylinder, and the shaft sleeve penetrates through the end face of the second end of the water guide core and is sleeved on the second end of the shaft rod; the first elastic piece is located in the first cavity, one end of the first elastic piece is abutted against the inner barrel, and the other end of the first elastic piece is abutted against the shaft sleeve.

7. The air zero-contact water feeder according to claim 4, wherein the hole blocking piece comprises a hole plug matched with the liquid inlet hole and a second elastic piece arranged along the width direction of the push rod assembly, one side surface of the hole plug is in sliding contact with the inner wall of the inner barrel, and the other side surface of the hole plug is fixedly connected with the surface of the push rod assembly through the second elastic piece; when the pressed state of the second end of the push rod assembly is released, the hole plug seals the liquid inlet hole under the action of the elastic restoring force of the second elastic piece.

8. The air zero-contact water feeder according to claim 7, wherein a mounting hole is formed in a surface of the push rod assembly, the second elastic member is located in the mounting hole, the hole plug is in sliding fit with the mounting hole, and the other side surface of the hole plug is fixedly connected with a side wall of the mounting hole through the second elastic member.

9. An air zero contact water applicator as claimed in any one of claims 4 to 8,

an opening is formed in one end, close to the first chamber, of the inner cylinder, the liquid flow channel is communicated with the first chamber through the opening, and a first sealing element arranged corresponding to the opening is sleeved on the push rod assembly; wherein the first seal blocks the opening when the second end of the pushrod assembly is compressed into the first chamber;

and/or a second sealing element is sleeved on the outer surface of the inner cylinder and is positioned between the liquid inlet hole and the first chamber and/or between the liquid inlet hole and the second chamber;

and/or the joint between the inner wall of the inner cylinder and the liquid inlet hole is an arc surface.

10. A fresh-keeping liquid-taking system, which comprises a connecting pipe, a liquid-taking device with a water pump, a compressible soft water barrel and the air zero-contact water feeder according to any one of claims 1 to 9, wherein a water barrel cover is arranged at the barrel mouth of the soft water barrel, the water barrel cover is provided with a plug-in port for the water guide core to pass through and a sealing cover for sealing the plug-in port, wherein:

the sleeve part is sleeved on the water barrel cover;

the water guide core penetrates through the insertion port and pushes the sealing cover open to extend into the inner cavity of the soft water barrel, the water guide core is tightly matched with the inner wall of the insertion port, and the second end of the water guide core extends into the inner cavity of the sealing cover and is clamped with the sealing cover through the annular clamping groove;

one end of the connecting pipe is communicated with the liquid outlet of the pipeline joint, and the other end of the connecting pipe is communicated with the water inlet of the water pump.

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