CN115254223A

CN115254223A - Dropper device with reciprocating circulation function, corresponding container and containing system

Info

Publication number: CN115254223A
Application number: CN202210857162.1A
Authority: CN
Inventors: 候文宇; 叶华
Original assignee: Apta China Investment Co ltd; Apta Packaging Technology Suzhou Co ltd; Aptar Suzhou Dispensing Systems Co Ltd
Current assignee: Apta China Investment Co ltd; Apta Packaging Technology Suzhou Co ltd; Aptar Suzhou Dispensing Systems Co Ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-11-01
Anticipated expiration: 2042-07-20
Also published as: CN115254223B

Abstract

The invention relates to a dropper device with a reciprocating circulation function, a corresponding container and a containing system, wherein the dropper device comprises a communication mechanism and a reciprocating circulation valve; the communicating mechanism comprises a reciprocating flow valve arranging cavity, the reciprocating flow valve is nested in the reciprocating flow valve arranging cavity, the bottom of the reciprocating flow valve arranging cavity is provided with a liquid inlet hole, an isolating snap ring and a liquid outlet hole, the liquid inlet hole is positioned on the inner wall side of the isolating snap ring, and the liquid outlet hole is positioned on the outer wall side of the isolating snap ring; the reciprocating flow valve comprises a first one-way valve clack and a second one-way valve clack; the material body can flow in getting the material dropper through first check valve clack to accessible second check valve clack flows back to in the bottle, can satisfy UNICOM and off-state's demand simultaneously, possesses the backward flow function, and the guarantee material absorbs and goes on with defective material and air reflux separately, so that control the volume of getting of material body better. The dropper device with the reciprocating circulation function, the corresponding container and the containing system have the characteristics of convenience in use, easiness in control and wide application range.

Description

Dropper device with reciprocating circulation function, corresponding container and containing system

Technical Field

The invention relates to the technical field of container structures, in particular to a dropper device with a reciprocating circulation function, a corresponding container and a containing system.

Background

In the bottle with the dropper in the prior art, a small amount of material body is drawn through the dropper when the bottle is used, and when the bottle dropper with the structure is not used, the bottle dropper is usually soaked in the material body. The length of a dropper suction pipe of the dropper needs to be close to the position close to the bottom in a material bottle, so that the rubber head compression amount of the rubber head dropper in the prior art is controlled by pressing the rubber head by hand once, the material taking amount is not easy to control, and a consumer can take out excessive material easily each time. And the suction pipe of the conventional dropper can not go deep into the corner of the container, and the material can not be well sucked out when the material is less. And the conventional dropper straw has long length, is not easy to control and is easy to cause pollution when in use.

In the bottle with the dropper in the prior art, the bottle cap with the dropper is matched with the annular buckle type bottle mouth, and the bottle mouth or the bottle shoulder and the bottle cap are provided with the clamping points for stopping rotation, so that the assembly of a product and the bottle mouth needs to be positioned, and the operation is very inconvenient.

In addition, the dropper in the prior art has a single function, and the operation is very inconvenient when the dropper is needed to transfer the material body in one bottle body into another bottle body.

Disclosure of Invention

The object of the present invention is to overcome at least one of the above drawbacks of the prior art and to provide a dropper device, a corresponding container and a containing system with a reciprocating function, which is easy to use, convenient for quantitative material suction, good in performance and wide in application range.

In order to achieve the above object, a dropper device having a reciprocating function, a container and a storage system according to the present invention are as follows:

the dropper device with the reciprocating circulation function is mainly characterized by comprising a communication mechanism and a reciprocating circulation valve;

the communicating mechanism comprises a bottle body connecting part and a reciprocating flow valve arranging cavity, wherein the reciprocating flow valve arranging cavity is connected with an external bottle body through the bottle body connecting part;

the reciprocating circulation valve is nested in the reciprocating circulation valve installation cavity, wherein a liquid inlet hole, an isolation clamp ring and a discharge hole are formed in one side, close to the bottle body, of the reciprocating circulation valve installation cavity, and the liquid inlet hole and the discharge hole are separated by the isolation clamp ring;

the reciprocating flow valve comprises a flow valve pipe part, a first one-way valve clack and a second one-way valve clack;

the first one-way valve clack is arranged on one side of the isolation clamp ring adjacent to the liquid inlet hole, and the displacement range of the first one-way valve clack is limited by a limiting component fixed on the pipe part of the flow valve;

the second one-way valve clack is arranged on one side of the isolation snap ring adjacent to the discharge hole, and one end of the second one-way valve clack is annularly arranged on the pipe part of the flow valve;

the material body can flow into the flow valve pipe part through the liquid inlet hole and the first one-way valve clack in sequence; and a return passage is formed in the flow valve pipe part, so that the material body and/or gas sequentially pass through the return passage and the second one-way valve clack and flow out of the communication mechanism from the discharge hole.

The burette device with the reciprocating circulation function is characterized in that the circulation valve pipe part comprises a circulation valve inner pipe part and a circulation valve outer pipe part;

the inner pipe part of the flow valve is attached to the inner wall of the isolation snap ring, and the limiting assembly is fixed on the inner wall of the inner pipe part of the flow valve;

the flow valve outer pipe part is attached to the inner wall of the reciprocating flow valve installation cavity, the second one-way valve clack is positioned at one end, close to the bottom of the reciprocating flow valve installation cavity, of the flow valve outer pipe part, so that one end of the second one-way valve clack is annularly arranged on the flow valve outer pipe part, and the other end of the second one-way valve clack is attached to the outer wall of the isolation snap ring;

and the return passage is formed by a passage which is arranged at the top of the inner pipe part of the flow-through valve and is connected to the inner wall of the second one-way valve clack.

The burette device with the reciprocating circulation function is characterized in that the inner pipe part of the circulation valve is connected with the outer pipe part of the circulation valve through a plurality of spaced connecting ribs, and a channel which is arranged at the top of the inner pipe part of the circulation valve and is connected to the inner wall of the second one-way valve clack is formed through gaps among the connecting ribs.

The burette device with the reciprocating circulation function is characterized in that an upper circulation valve pipe section in the circulation valve pipe section is attached to the inner wall of the reciprocating circulation valve installation cavity, and a lower circulation valve pipe section in the circulation valve pipe section is attached to the inner wall of the isolation snap ring;

the limiting assembly is fixed on the inner wall of the lower flow valve pipe section;

one end of the second one-way valve clack is annularly arranged on the outer wall of the pipe part of the circulation valve, and the other end of the second one-way valve clack is attached to the inner wall of the reciprocating circulation valve accommodating cavity;

and the return passage is formed by an opening which is arranged on the flow valve pipe part, is positioned on the upper side of the second one-way valve clack and is communicated with the outer wall of the second one-way valve clack.

The burette device with the reciprocating circulation function further comprises a liquid suction conduit, a conduit fixing part is further arranged at the bottom of the reciprocating circulation valve mounting cavity, the liquid suction conduit is connected with the communicating mechanism through the conduit fixing part, and the liquid suction conduit is communicated with the liquid inlet hole.

The burette device with the reciprocating circulation function is characterized in that the limiting assembly comprises an elastic connecting piece, and the first one-way valve clack is connected with the inner pipe part of the circulation valve through the elastic connecting piece.

The burette device with the reciprocating circulation function is characterized in that the elastic connecting piece comprises a spiral connecting rib, one end of the spiral connecting rib, which is positioned at the center, is connected with the first one-way valve clack, and one end of the spiral connecting rib, which is positioned at the outer edge, is connected with the inner pipe part of the circulation valve; or

The elastic connecting piece comprises a plurality of bent connecting ribs which are distributed around the one-way valve clack, one end of each bent connecting rib is connected with the first one-way valve clack, and the other end of each bent connecting rib is connected with the inner pipe of the flow valve.

The burette device with the reciprocating circulation function is characterized in that the limiting component comprises a limiting part, the limiting part is positioned on the upper side of the first one-way valve clack, the first one-way valve clack is positioned on the liquid inlet hole and can move between the limiting part and the liquid inlet hole, and a circulation channel for the circulation of the material body is formed in the limiting part.

The burette device with the reciprocating circulation function is characterized in that an air supplementing hole is formed in the connecting position of the reciprocating circulation valve installation cavity and the bottle body connecting part.

The burette device with the reciprocating circulation function is characterized in that a scraping sealing rib is arranged on the inner wall of the outer pipe part of the circulation valve.

The burette device with the reciprocating circulation function is characterized in that a fixed sealing rib is arranged on the outer wall of the outer pipe part of the circulation valve, a limiting ring is arranged on the inner wall of the reciprocating circulation valve arranging cavity, and the limiting ring is arranged on the upper side of the fixed sealing rib.

The burette device with the reciprocating circulation function is characterized in that the communication mechanism further comprises a material body guide part, and the material body guide part is connected with the reciprocating circulation valve installation cavity.

The burette device with the reciprocating circulation function further comprises a material taking mechanism;

the communicating mechanism further comprises a material taking mechanism connecting part which is connected with the external bottle body through the bottle body connecting part;

the material taking mechanism comprises a material taking dropper, and when the material taking mechanism covers the communicating mechanism through the material taking mechanism connecting part, the material taking dropper penetrates through the material taking mechanism connecting part and extends into the backflow valve in the reciprocating flow valve arranging cavity.

The burette device with the reciprocating circulation function is characterized in that the material taking mechanism comprises a pressing piece, a communicating mechanism connecting piece and an elastic assembly, wherein the communicating mechanism connecting piece is provided with the material taking burette;

the communicating mechanism connecting piece further comprises a communicating mechanism connecting part and a pressing component arranging part, wherein the communicating mechanism connecting part is connected with the material taking dropper and is sleeved on the material taking mechanism connecting part through the communicating mechanism connecting part;

the elastic component comprises an elastic piece and a piston piece, the piston piece is movably arranged in the pressing component mounting part and is connected with the protruding part, the elastic piece is sleeved on the protruding part, one end of the elastic piece abuts against the pressing piece, and the other end of the elastic piece abuts against the communicating mechanism connecting piece.

This burette device with reciprocal circulation function, wherein, be equipped with first spacing pothook on the piston spare, be equipped with the spacing pothook of second on the bellying, the piston spare with through first spacing pothook between the bellying with the spacing pothook interconnect of second, just first spacing pothook with set up the activity space between the spacing pothook of second, so that bellying and drive the piston spare has the invalid stroke of predetermineeing the distance when removing.

The burette device with the reciprocating circulation function is characterized in that an external thread is arranged on the outer wall of a pressing piece, a pressing piece connecting thread matched with the external thread is arranged on the inner wall of a connecting part of a material taking mechanism, and the pressing piece is locked through the matching of the external thread and the pressing piece connecting thread when a connecting part of a communicating mechanism rotates;

the outer wall of the pressing piece is further provided with a first stopping piece portion, the pressing assembly mounting portion is provided with a second stopping piece portion and a third stopping piece portion, the second stopping piece portion and the third stopping piece portion are matched with the first stopping piece portion, the first stopping piece portion is arranged on the lower side of the second stopping piece portion, and the third stopping piece portion is arranged on the lower side of the first stopping piece portion.

This burette device with reciprocal circulation function, wherein, still be equipped with the sound production plectrum on the outer wall of pressing element, be equipped with on the feeding agencies connecting portion with the sound production stop point of sound production plectrum mutually supporting.

The burette device with the reciprocating circulation function is characterized in that a button cover is sleeved on the upper side of the pressing piece;

a burette jacket is arranged on the outer side of the communicating mechanism connecting piece, and a through hole for the button cover to move is formed in the top surface of the burette jacket.

The first one-way valve clack is in a bowl-shaped, spherical or conical structure.

The container with the reciprocating circulation function is mainly characterized by comprising the dropper device with the reciprocating circulation function and a bottle body, wherein the dropper device with the reciprocating circulation function is connected with the bottle body through the bottle body connecting part; wherein:

a lug or a groove is arranged on the top surface of the bottle mouth of the bottle body; and a flexible gasket is arranged at the position, in the bottle body connecting part, contacted with the top surface of the bottle mouth.

The containing system with the reciprocating circulation function is mainly characterized by comprising the dropper device with the reciprocating circulation function, a first bottle body and a second bottle body, wherein a liquid inlet hole in the dropper device with the reciprocating circulation function is communicated with the first bottle body, and a discharge hole in the dropper device with the reciprocating circulation function is communicated with the second bottle body.

The dropper device with the reciprocating circulation function, the corresponding container and the containing system have the advantages that:

the dropper device with the reciprocating circulation function is characterized in that a communicating mechanism and a reciprocating circulation valve are arranged, a transitional material body transition area is arranged in the communicating mechanism, so that the length of a material taking dropper in the material taking mechanism is effectively shortened, the absorption amount of a material body is effectively controlled, meanwhile, the material body can flow into the material taking dropper through a first one-way valve clack by arranging the reciprocating circulation valve, and redundant material bodies can flow back into a bottle body or another bottle body through a second one-way valve clack. The dropper device with the reciprocating circulation function, the corresponding container and the containing system have the characteristics of convenience in use, easiness in control and wide application range.

Drawings

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Fig. 1A is a schematic structural view of a container having a reciprocating flow function according to the present invention in a first state in a first embodiment.

Fig. 1B is a cross-sectional view of fig. 1A.

Fig. 2A is a schematic structural view of the container having the reciprocating flow function of the present invention in the first embodiment in the second state.

Fig. 2B is a cross-sectional view of fig. 2A.

Fig. 3 is a schematic structural view of the container having the reciprocation function of the present invention in the third state according to the first embodiment.

Fig. 4A is a schematic view showing the structure of a bottle body in a container having a reciprocating flow function according to the present invention in a first example.

Fig. 4B is a schematic view showing the structure of the bottle body in the container having the reciprocation function of the present invention in the second example.

Fig. 5A is a schematic structural view of a dropper apparatus having a reciprocating flow function according to a first embodiment of the present invention in a first state.

FIG. 5B is a cross-sectional view of the first embodiment of the drop tube apparatus with reciprocating flow function of the present invention in a first state.

Fig. 5C is a partially enlarged view of the area a in fig. 5B.

Fig. 6 is an exploded view of a drop tube device having a reciprocating flow function of the present invention in a first embodiment.

Fig. 7 is a sectional view of the combination of the communicating means and the reciprocating flow valve in the dropper apparatus with the reciprocating flow function according to the first embodiment of the present invention.

Fig. 8A is a schematic structural view of a material taking mechanism in a dropper device with a reciprocating flow function according to the first embodiment of the present invention.

Figure 8B is a cross-sectional view of a material extracting mechanism in a drop tube apparatus having a reciprocating flow function according to the present invention in a first embodiment.

FIG. 9A is a schematic view of the structure of the reciprocating flow valve in the first embodiment.

FIG. 9B is a top view of the reciprocating flow valve of the first embodiment.

FIG. 9C is a cross-sectional view of the reciprocating flow valve of the first embodiment.

FIG. 9D is a bottom view of the reciprocating flow valve of the first embodiment.

FIG. 10A is a top view of a reciprocating flow valve according to a second embodiment.

Fig. 10B is a cross-sectional view of the reciprocating flow valve and communication mechanism of fig. 10A in combination.

Fig. 11A is a schematic view of the structure of the feed-through mechanism.

FIG. 11B is a bottom side angle schematic view of the feed through mechanism.

Fig. 11C is a cross-sectional view of the feed through mechanism.

Fig. 12A is a schematic structural view of the pressing member.

Fig. 12B is a sectional view of the pressing member.

Fig. 13A is a schematic view of a take-off mechanism.

Fig. 13B is a top view of a take off mechanism.

Figure 14 is a partial cross-sectional view of a communication mechanism and a reciprocating flow valve in a drop tube apparatus having a reciprocating flow function of the present invention in a third embodiment.

Fig. 15 is a partial sectional view of the communicating mechanism and the reciprocating flow valve in the drop tube apparatus with reciprocating flow function of the present invention in a fourth embodiment.

Figure 16A is a partial cross-sectional view of a communication mechanism and a reciprocating flow valve in a drop tube apparatus having a reciprocating flow function of the present invention in a fifth embodiment.

FIG. 16B is a schematic view of the construction of the reciprocating flow valve of FIG. 16A.

Fig. 17 is a sectional view showing a connection relationship between the communication mechanism and the reciprocating flow valve and the bottle body in the dropper apparatus having the reciprocating flow function according to the sixth embodiment of the present invention.

FIG. 18 is a cross-sectional view of a drop tube apparatus having a reciprocating flow function according to a seventh embodiment of the present invention.

Reference numerals

1. Communicating mechanism

11. Bottle body connecting part

12. Reciprocating circulation valve mounting cavity

121. Liquid inlet hole

122. Isolation snap ring

123. Discharge hole

124. Spacing ring

125. Catheter fixing part

13. Feeding agencies connecting portion

131. Pressing piece connecting thread

132. Sound production stop point

14. Air supply hole

15. Material body guide part

2. Reciprocating circulation valve

21. Inner pipe part of flow valve

22. Outer pipe part of flow valve

221. Scraping sealing rib

222. Fixed sealing rib

23. First one-way valve clack

24. Second one-way valve flap

25. Connecting rib

26. Return channel

27. Spiral connecting rib

28. Bending connecting rib

29. Position limiting piece

210. Upper circulation valve pipe section

211. Pipe section of down-flow valve

3. Material taking mechanism

31. Connecting piece of communicating mechanism

311. Take out material burette

312. Linking mechanism connecting part

313. Pressing component placing part

3131. A second stop part

3132. The third stop part

32. Pressing piece

321. Raised part

3212. Second limit hook

322. External thread

323. A first stop part

324. Sounding plectrum

33. Elastic component

331. Elastic piece

332. Piston part

3321. First limit hook

4. Liquid suction catheter

5. Burette jacket

51. Limit cover ring

6. Communicating mechanism jacket

7. Button cover

8. Flexible gasket

9. Bottle body

91. Bump

92. Groove

Detailed Description

In order to make the technical means, the characteristics, the purposes and the functions of the invention easy to understand, the invention is further described with reference to the specific drawings. However, the present invention is not limited to the following embodiments.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

As shown in fig. 1A to 17, in practice, the container having the reciprocating function includes a dropper device having the reciprocating function and a vial 9, and the dropper device having the reciprocating function is connected to the vial 9 through the vial connecting portion 11; in order to better explain the dropper device with reciprocating flow function and the corresponding container of the present invention, several specific embodiments are described below:

the first embodiment:

as shown in fig. 4A, in the first example, the top surface of the bottle mouth of the bottle body 9 is provided with a projection 91; and a flexible gasket 8 is arranged at the position, in the bottle body connecting part 11, contacted with the top surface of the bottle mouth. Make

lug

91 and 8 contacts of flexible gasket, during 8 embedding bottleneck structures of flexible gasket to play and prevent that UNICOM's mechanism 1 from sliding when extracting mechanism 3 rotates, produce relative movement with bottle 9, this lug 91 can also be protruding muscle for the bump.

As shown in fig. 4B, in the second example, the projection 91 on the top surface of the bottle opening of the bottle body 9 may be replaced by the groove 92, and the same effect can be produced.

The burette device with the reciprocating circulation function comprises a communication mechanism 1, a reciprocating circulation valve 2 and a material taking mechanism 3; as shown in fig. 1A to 3 and 5 to 13B, the reciprocating flow valve 2 is fixedly provided in the communicating mechanism 1, the material taking mechanism 3 is located on the upper side of the communicating mechanism 1 and detachably connected to the communicating mechanism 1, wherein:

the communicating mechanism 1 comprises an integrated and coaxially arranged bottle body connecting part 11, a reciprocating flow valve arranging cavity 12 and a material taking mechanism connecting part 13, wherein the reciprocating flow valve arranging cavity 12 and the material taking mechanism connecting part 13 are respectively connected to two sides of the bottle body connecting part 11, the reciprocating flow valve arranging cavity 12 is positioned on one side, facing a bottle body 9, of the bottle body connecting part 11, and the reciprocating flow valve arranging cavity 12 is positioned on the inner wall side of the bottle body connecting part 11;

the reciprocating circulation valve 2 is nested in the reciprocating circulation valve installation cavity 12, wherein a liquid inlet hole 121, an isolation snap ring 122 and a liquid outlet hole 123 are arranged at the bottom of the reciprocating circulation valve installation cavity 12, the liquid inlet hole 121 is positioned on the inner wall side of the isolation snap ring 122, and the liquid outlet hole 123 is positioned on the outer wall side of the isolation snap ring 122;

the reciprocating flow valve 2 comprises a flow valve inner pipe part 21, a flow valve outer pipe part 22, a first one-way valve clack 23 and a second one-way valve clack 24;

the flow valve inner pipe part 21 is attached to the inner wall of the isolation snap ring 122, the first one-way valve clack 23 is attached to the liquid inlet hole 121, and the first one-way valve clack 23 is connected with the flow valve inner pipe part 21 through an elastic connecting piece;

the flow valve outer pipe part 22 is attached to the inner wall of the reciprocating flow valve installation cavity 12, the second one-way valve flap 24 is arranged at one end of the flow valve outer pipe part 22 close to the bottom of the reciprocating flow valve installation cavity 12, and the second one-way valve flap 24 is wrapped on the outer wall of the isolation snap ring 122;

the top of the inner pipe part 21 of the flow-through valve is provided with a return passage 26 connected to the inner wall of the second one-way valve clack 24;

the material taking mechanism 3 comprises a material taking dropper 311, and when the material taking mechanism 3 is covered on the communicating mechanism 1 through the material taking mechanism connecting part 13, the material taking dropper 311 penetrates through the material taking mechanism connecting part 13 and extends into the double-flow valve in the reciprocating flow valve arranging cavity 12.

Through the reciprocating flow valve 2 and the communication mechanism 1 with the structure, the material body can flow into the reciprocating flow valve 2 through the first one-way valve clack 23, and the redundant material body and gas can flow out of the reciprocating flow valve 2 through the second one-way valve clack 24 and return to the container.

The flow valve inner pipe portion 21 is connected to the flow valve outer pipe portion 22 by a plurality of spaced-apart connecting ribs 25, and the return passage 26 is formed by a gap between the connecting ribs 25. When in use, the residual material body and the gas in the dropper can flow to the discharge hole 123 through the return channel 26 and then flow out.

The dropper device further comprises a liquid suction conduit 4, the bottom of the reciprocating circulation valve arranging cavity 12 is further provided with a conduit fixing part 125, the liquid suction conduit 4 is connected with the communicating mechanism 1 through the conduit fixing part 125, and the liquid suction conduit 4 is communicated with the liquid inlet hole 121.

As shown in fig. 9B to 9D, in this embodiment, the elastic connection member includes a spiral connection rib 27, one end of the spiral connection rib 27 located at the center is connected to the first check valve flap 23, and one end of the spiral connection rib 27 located at the outer edge is connected to the flow valve inner tube portion 21, and in this embodiment, a first channel may be formed by a gap between the spiral connection ribs 27.

Each component of the reciprocating flow valve 2 in this embodiment is of an integrated structure.

And an air supply hole 14 is formed at the joint of the reciprocating flow valve arranging cavity 12 and the bottle body connecting part 11.

Through the setting of this tonifying qi hole 14 can make the feeding agencies 3 promote the in-process, and the air can get into UNICOM's mechanism 1, avoids forming the negative pressure in the container, leads to inhaling the material failure.

The inner wall of the outer pipe part 22 of the flow valve is provided with a scraping sealing rib 221.

The outer wall of the outer pipe part 22 of the circulation valve is provided with a fixed sealing rib 222, the inner wall of the reciprocating circulation valve installation cavity 12 is provided with a limit ring 124, and the limit ring 124 is clamped on the upper side of the fixed sealing rib 222.

The material taking mechanism 3 comprises a pressing piece 32, a communicating mechanism connecting piece 31 provided with the material taking dropper 311 and an elastic component 33;

the communicating mechanism connecting piece 31 further comprises a communicating mechanism connecting part 312 and a pressing component arranging part 313 which are coaxially arranged with the material taking dropper 311, wherein the communicating mechanism connecting piece 31 is sleeved on the material taking mechanism connecting part 13 through the communicating mechanism connecting part 312, the material taking dropper 311 is positioned at the lower side of the pressing component arranging part 313, the pressing piece 32 is movably arranged in the pressing component arranging part 313, and the pressing piece 32 extends out of the protruding part 321 towards the direction of the material taking dropper 311;

the elastic component 33 includes an elastic member 331 and a piston member 332, the piston member 332 is movably installed in the pressing component installation portion 313 and is connected to the protrusion portion 321, the elastic member 331 is sleeved on the protrusion portion 321, one end of the elastic member 331 abuts against the pressing member 32, and the other end of the elastic member 331 abuts against the communication mechanism connecting member 31. The elastic member 331 in this embodiment may be formed of a spring.

The piston piece 332 is provided with a first limiting hook 3321, the protrusion 321 is provided with a second limiting hook 3212, the piston piece 332 and the protrusion 321 are connected with each other through the first limiting hook 3321 and the second limiting hook 3212, and a movable space is arranged between the first limiting hook 3321 and the second limiting hook 3212, so that the protrusion 321 and the piston piece 332 are driven to move with an invalid stroke with a preset distance.

The arrangement of the invalid stroke is realized by arranging an axial moving space between the first limit hook 3321 and the second limit hook 3212, and during implementation, the dosage absorbed to the material body in the material taking dropper 311 can be controlled by selecting dropper devices with different invalid stroke lengths, so that the absorption metering is adjustable.

In this embodiment, as shown in figure 5C, the top surface of the take-out drop tube 311 is also provided with guide slots for insertion guidance of the piston member 332, while facilitating seal compensation.

An external thread 322 is arranged on the outer wall of the pressing piece 32, a pressing piece connecting thread 131 matched with the external thread 322 is arranged on the inner wall of the material taking mechanism connecting part 13, and the pressing piece 32 is locked by matching the external thread 322 with the pressing piece connecting thread 131 when the communicating mechanism connecting part 31 rotates;

the outer wall of the pressing member 32 is further provided with a first stopper portion 323, the pressing unit seating portion 313 is provided with a second stopper portion 3131 and a third stopper portion 3132 which are matched with the first stopper portion 323, the first stopper portion 323 is disposed at the lower side of the second stopper portion 3131, and the third stopper portion 3132 is disposed at the lower side of the first stopper portion 323.

Still be equipped with sound production plectrum 324 on the outer wall of pressing piece 32, be equipped with on the feeding agencies connecting portion 13 with sound production gear point 132 that sound production plectrum 324 mutually supported.

The upper side of the pressing piece 32 is sleeved with a button cover 7;

a burette jacket 5 is arranged on the outer side of the communicating mechanism connecting piece 31, a through hole for the button cover 7 to move inside is arranged on the top surface of the burette jacket 5, and a limit cover ring 51 is arranged on the edge of the through hole;

referring to fig. 5B, a communication mechanism jacket 6 is further sleeved outside the communication mechanism 1. The position where the bottom surface of the pressing component placing part 313 is in contact with the communicating mechanism 1 is also provided with an insertion type sealing point, and when the communicating mechanism 1 is connected with the material taking mechanism 3, the insertion type sealing point is abutted against a stop surface on the communicating mechanism 1 so as to limit the downward moving position of the material taking mechanism 3.

The working process and principle of the dropper device with the reciprocating circulation function in the embodiment are as follows:

the operation process when taking materials is as follows:

the accessible is rotatory material taking mechanism 3, the inside spring drive pressing part 32 of material taking mechanism 3, button lid 7 rises, then after pressing part 32 rises certain distance (invalid stroke), drive piston 332 and get material burette 311 and rise relatively, get the intracavity of material burette 311 and form the negative pressure, the material flows to the first passageway of reciprocating flow valve 2 through imbibition pipe 4 in the container, jack up first check valve clack 23, the first passageway is opened, the material gets into and gets material burette 311 from the first passageway, second check valve clack 24 is closed and is formed sealedly this moment, the second passageway (being return passage 26) is closed. After the material is rotated for a certain angle, the first stop part 323 on the pressing piece 32 is limited by the second stop part 3131 in the pressing component arrangement part 313, and can not rise relative to the material taking dropper 311, and the dropper device stops sucking material;

in the process of material suction, the second one-way valve clack 24 is closed, and partial materials attached to the material taking dropper 311 can be scraped through the scraping sealing rib 221;

in the material sucking process, the material taking mechanism 3 is prevented from moving upwards relative to the communication mechanism 1 through the pressing piece connecting threads 131, and the material taking mechanism 3 is prevented from being separated from the communication mechanism 1 before the pressing piece 32 rebounds to the right position (namely, before a foot sucking body is sucked).

Then, the material taking mechanism 3 continues to be rotated, the external thread 322 on the outer wall of the pressing piece 32 continues to drive the material taking mechanism 3 to ascend relative to the communication mechanism 1, so that the material taking dropper 311 is driven to separate from the material taking mechanism connecting part 13 (i.e., the plug-in sealing section) of the communication mechanism 1 until the external thread 322 is disengaged from the pressing piece connecting thread 131, and the material taking mechanism 3 can be taken down from the communication mechanism 1.

After the material taking mechanism 3 is taken down from the communicating mechanism 1, the piston 332 is pushed to move downwards in the dropper storage bin in the pressing component arrangement part 313 by pressing the button cover 7 coated on the pressing piece 32, so that the material in the material taking dropper 311 is pumped out.

In the material taking process, the material taking mechanism 3 can be rotated firstly, so that the material taking mechanism 3 and the communication mechanism 1 rotate relatively, the pressing piece 32 in the material taking mechanism 3 is made to move upwards firstly, then the material taking mechanism 3 is taken down from the communication mechanism 1, and then the material is taken out by pressing the pressing piece 32.

The placing process after finishing taking materials is as follows:

the pressing of the button cover 7 covering the pressing member 32 is stopped, and the spring is rebounded to lift the pressing member 32 and the piston.

The material taking mechanism 3 and the communicating mechanism 1 are screwed through threads, and in the rotating process, the threads (including the external threads 322 and the pressing piece connecting threads 131) drive the material taking mechanism 3 to move downwards, and the downward moving process is as follows:

firstly, the material taking dropper 311 forms a seal with the scraping sealing rib 221 on the reciprocating flow valve 2; then, the material taking mechanism 3 is inserted into a material taking mechanism connecting part 13 (i.e. an insertion type sealing section) of the communicating mechanism 1 to realize sealing; then, the third stop part 3132 in the communicating mechanism 1 prevents the material taking dropper 311 from moving downwards continuously, and at the moment, the plug-in sealing point at the bottom surface of the pressing component placing part 313 is abutted to the stop surface on the communicating mechanism 1; then the pressing piece 32 and the button cover 7 are continuously driven to move downwards through the threads; when the button moves down for a certain distance (idle stroke), the piston 332 is driven to move down, and the air and the residual material in the reciprocating circulation valve installation cavity 12 in the pressing component installation part 313 are extruded out. At this time, a seal is formed between the first check valve flap 23 and the communicating mechanism 1, the second check valve flap 24 is lifted, and the material enters the container from the return passage 26 and the discharge hole 123 on the bottom of the reciprocating flow valve installation chamber 12.

The action process is opposite to the material taking process.

The reciprocating flow valve 2 is provided with a first check valve clack 23, a second check valve clack 24, a first passage, a return passage 26, a scraping sealing rib 221 and a fixing sealing rib 222, and the communicating mechanism 1 is provided with a corresponding liquid inlet hole 121 and a corresponding return passage 26 so as to form a sealing or opening passage with the communicating mechanism 1 or the material taking dropper 311.

Meanwhile, in this embodiment, since a movable space is provided between the piston member 332 and the first and second limit hooks 3321 and 3212 on the pressing member 32, the piston member 332 can rock and move up and down within a certain range, wherein the space of up and down movement is used as an invalid stroke, and when in implementation, the length of the invalid stroke can be adjusted by replacing different pressing members 32, so as to adjust the adjustment dosage;

the free radial shaking of the piston 332 can ensure that the piston 332 is well attached to the inner wall of the dropper storage bin in the pressing assembly positioning portion 313, and the sealing failure of the piston 332 and the storage bin is avoided.

Meanwhile, the sounding plectrum 324 is arranged on the pressing piece 32, and the sounding blocking point 132 is arranged on the communicating mechanism 1, so that the material taking mechanism 3 can provide hand feeling and sound prompt when rotating to the position, and a user has better operation experience.

And because the rotation stopping structure is arranged at the bottle mouth, the positioning is not needed when the product is installed.

Second embodiment:

since the structure and the operation principle of the dropper device with the reciprocating function and the corresponding container in this embodiment are basically similar to those of the dropper device with the reciprocating function and the corresponding container in the first embodiment, the same parts will not be described again, and only the parts different from the two parts will be described below:

as shown in fig. 10A to 10B, in the second embodiment, the elastic connection member may also include a plurality of bent connection ribs 28, the plurality of bent connection ribs 28 are distributed around the one-way valve flap, one end of each bent connection rib 28 is connected to the first one-way valve flap 23, and the other end of each bent connection rib 28 is connected to the flow valve inner tube 21. In this embodiment, the first channel may be formed by a gap between each of the bent-shaped connecting ribs 28.

The third embodiment:

as shown in fig. 14, in the third embodiment, a limiting member 29 is used to replace an elastic connection member to form a limiting assembly, the limiting member 29 is located on the upper side of the first one-way valve flap 23, the first one-way valve flap 23 is located on the liquid inlet hole 121 and can move between the limiting member 29 and the liquid inlet hole 121, a flow passage for the liquid to flow through is formed in the limiting member 29, when the material taking mechanism 3 performs a material taking operation, the first one-way valve flap 23 moves upward, so that the liquid flows from the flow passage to the material taking mechanism 3 through the first one-way valve flap 23, and when the material taking mechanism 3 stops the material taking operation, the first one-way valve flap 23 falls back to the liquid inlet hole 121.

The fourth embodiment:

as shown in fig. 15, in the fourth embodiment, a limiting member 29 is used to replace an elastic connecting member to form a limiting assembly as in the third embodiment, the limiting member 29 is located on the upper side of the first one-way valve flap 23, the first one-way valve flap 23 is located on the liquid inlet hole 121 and is movable between the limiting member 29 and the liquid inlet hole 121, and a flow passage for the liquid to flow through is formed in the limiting member 29, when the material taking mechanism 3 performs a material taking operation, the first one-way valve flap 23 moves upward to allow the liquid to flow from the flow passage to the material taking mechanism 3 through the first one-way valve flap 23, and when the material taking mechanism 3 stops the material taking operation, the first one-way valve flap 23 falls back to the liquid inlet hole 121.

In other embodiments, the hemispherical bowl structure of the first embodiment can also be used to form the first one-way flap 23 of the third or fourth embodiment.

Fifth embodiment:

since the structure and operation principle of the dropper device with the reciprocating function and the corresponding container in this embodiment are basically similar to those of the dropper device with the reciprocating function and the corresponding container in the first embodiment, the same parts will not be described again, and only the parts different from the two parts will be described below:

as shown in fig. 16A and 16B, in the fifth embodiment, the flow-through valve pipe section includes an integrated upper flow-through valve pipe section 210 and lower flow-through valve pipe section 211, and the pipe diameter of the lower flow-through valve pipe section 211 is smaller than that of the upper flow-through valve pipe section 210; an upper circulation valve pipe section 210 in the circulation valve pipe section is attached to the inner wall of the reciprocating circulation valve installation cavity 12, and a lower circulation valve pipe section 211 in the circulation valve pipe section is attached to the inner wall of the isolating snap ring 122;

the limiting assembly is fixed on the inner wall of the lower flow valve pipe section 211;

one end of the second one-way valve clack 24 is annularly arranged on the outer wall of the flow valve pipe part, and the other end of the second one-way valve clack 24 is attached to the inner wall of the reciprocating flow valve installation cavity 12;

and the return passage 26 is formed by an opening which is arranged on the flow valve pipe part, is positioned on the upper side of the second one-way valve clack 24 and is communicated with the outer wall of the second one-way valve clack 24.

In this embodiment, the redundant material and air in the reciprocating flow valve 2 can flow to the outside of the flow valve pipe through the return passage 26, and then flow out of the communication mechanism 1 through the second check valve flap 24, the working principle of the reciprocating flow valve 2 in this embodiment is the same as that of the reciprocating flow valve 2 in the first to fourth embodiments, except that the opening direction of the second check valve flap 24 in this embodiment is opposite to that of the second check valve flap 24 in the reciprocating flow valve 2 in the first to fourth embodiments, in this embodiment, the second check valve flap 24 is also made of a material with certain elasticity, and the whole reciprocating flow valve 2 can also be of an integrated structure.

Sixth embodiment:

as shown in fig. 17, in this embodiment, the reciprocating flow valve installation cavity 12 and the material taking mechanism connecting part 13 of the communicating mechanism 1 are perpendicular to the bottle body connecting part 11, and the material taking mechanism connecting part 13 is connected to the bottle body connecting part 11 through the reciprocating flow valve installation cavity 12, wherein the liquid inlet hole 121, the isolating snap ring 122 and the liquid outlet hole 123 on the reciprocating flow valve installation cavity 12 are located at the side close to the bottle body. Any of the first to fifth embodiments of the shuttle valve 2 and the take off mechanism 3 may be used in conjunction with the communication mechanism 1.

Seventh embodiment:

since the structure and the operation principle of the dropper device with the reciprocating function and the corresponding container in this embodiment are similar to those of the dropper device with the reciprocating function and the corresponding container in the first embodiment, the same parts will not be described again, and only the parts different from the two parts will be described below:

as shown in fig. 18, in this embodiment, an additional material body guide 15 is provided in the communicating mechanism 1, the material body guide 15 is connected to the reciprocating flow valve installation chamber 12, and by providing the material body guide 15, the material body can be sucked out through the reciprocating flow valve and the material body guide 15 in sequence, so that the purpose of sucking out the material body can be achieved even if the material taking dropper 311 is not used. The body guide 15 may be used in conjunction with an external suction device such as an ear wash or other device having a negative pressure feature.

Meanwhile, in other embodiments, the above-mentioned dropper device with a reciprocating flow function may also be used with a plurality of bottles to form an accommodating system with a reciprocating flow function, where the system includes any one of the dropper devices with a reciprocating flow function, a first bottle and a second bottle, the liquid inlet hole 121 of the dropper device with a reciprocating flow function is communicated with the first bottle, and the discharge hole 123 of the dropper device with a reciprocating flow function is communicated with the second bottle. Due to the structural design, the material body sucked out of the first bottle body can enter the second bottle body, the material body sucked out of the first bottle body can react with other external material bodies, is mixed and then enters the second bottle body through the discharging hole 123, and the contact with the external environment is reduced in the circulation process of the material bodies, so that the pollution is reduced. When implementing, can be with the form of primary and secondary bottle with first bottle and second bottle design, first bottle nestification is in the second bottle promptly, also can set up extra stand pipe and make feed port 121 and discharge opening 123 be connected two bottles respectively to realize corresponding function. Because the first one-way valve clack 23 and the second one-way valve clack 24 both have the function of one-way circulation, the material in the original bottle is not affected in the operation process. The dropper device with the reciprocating circulation function, the corresponding container and the containing system have the backflow function, ensure that material suction, residual material and air backflow are separately carried out, realize quantitative material suction, so that a user can better control the material taking amount, and the dropper device has the characteristics of convenience in use, easiness in control, cleanness, sanitation and wide application range.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A burette device with a reciprocating circulation function is characterized by comprising a communicating mechanism (1) and a reciprocating circulation valve (2);

the communicating mechanism (1) comprises a bottle body connecting part (11) and a reciprocating flow valve arranging cavity (12), wherein the reciprocating flow valve arranging cavity (12) is connected with an external bottle body through the bottle body connecting part (11);

the reciprocating flow valve (2) is nested in the reciprocating flow valve arranging cavity (12), wherein a liquid inlet hole (121), an isolating clamp ring (122) and a liquid outlet hole (123) are formed in one side, close to the bottle body, of the reciprocating flow valve arranging cavity (12), and the liquid inlet hole (121) and the liquid outlet hole (123) are separated by the isolating clamp ring (122);

the reciprocating flow valve (2) comprises a flow valve pipe part, a first one-way valve clack (23) and a second one-way valve clack (24);

the first one-way valve clack (23) is arranged on one side of the isolating clamp ring (122) adjacent to the liquid inlet hole (121), and the displacement range of the first one-way valve clack (23) is limited by a limiting component fixed on the pipe part of the flow valve;

the second one-way valve clack (24) is arranged on one side of the isolating snap ring (122) adjacent to the discharge hole (123), and one end of the second one-way valve clack (24) is annularly arranged on the pipe part of the flow valve;

the liquid body can flow into the flow-through valve pipe part through the liquid inlet hole (121) and the first one-way valve flap (23) in sequence; and a return passage (26) is formed on the flow valve pipe part, so that the material body and/or the gas sequentially pass through the return passage (26) and the second one-way valve clack (24) and flow out of the communication mechanism (1) from the discharge hole (123).

2. The pipette device with reciprocating flow-through functionality according to claim 1,

the flow valve pipe section includes a flow valve inner pipe section (21) and a flow valve outer pipe section (22);

the inner pipe part (21) of the flow valve is attached to the inner wall of the isolation snap ring (122), and the limiting assembly is fixed on the inner wall of the inner pipe part (21) of the flow valve;

the flow valve outer pipe part (22) is attached to the inner wall of the reciprocating flow valve installation cavity (12), the second one-way valve flap (24) is located at one end, close to the bottom of the reciprocating flow valve installation cavity (12), in the flow valve outer pipe part (22), so that one end of the second one-way valve flap (24) is annularly arranged on the flow valve outer pipe part (22), and the other end of the second one-way valve flap (24) is attached to the outer wall of the isolation snap ring (122);

and the return passage (26) is formed by a passage which is arranged at the top of the inner pipe part (21) of the flow-through valve and is connected to the inner wall of the second one-way valve clack (24).

3. The dropper device with a reciprocating flow-through function according to claim 2, wherein the flow-through valve inner tube portion (21) is connected to the flow-through valve outer tube portion (22) by a plurality of spaced connection ribs (25), and a passage provided at the top of the flow-through valve inner tube portion (21) and connected to the inner wall of the second check valve flap (24) is formed by a gap between the respective connection ribs (25).

4. The pipette device with reciprocating flow-through functionality according to claim 1,

an upper circulation valve pipe section (210) in the circulation valve pipe section is attached to the inner wall of the reciprocating circulation valve installation cavity (12), and a lower circulation valve pipe section (211) in the circulation valve pipe section is attached to the inner wall of the isolation snap ring (122);

the limiting assembly is fixed on the inner wall of the lower flow valve pipe section (211);

one end of the second one-way valve clack (24) is annularly arranged on the outer wall of the circulating valve pipe part, and the other end of the second one-way valve clack (24) is attached to the inner wall of the reciprocating circulating valve installation cavity (12);

and the return passage (26) is formed by an opening which is arranged on the flow valve pipe part, is positioned at the upper side of the second one-way valve clack (24) and is communicated with the outer wall of the second one-way valve clack (24).

5. The pipette device with the reciprocating flow function according to claim 1, wherein the pipette device further comprises a pipette guide tube (4), a guide tube fixing part (125) is further disposed at a side of the reciprocating flow valve installation chamber (12) close to the bottle body, the pipette guide tube (4) is connected to the communicating mechanism (1) through the guide tube fixing part (125), and the pipette guide tube (4) is communicated with the liquid inlet hole (121).

6. A dropper device with reciprocating flow-through functionality according to claim 1, wherein the limiting assembly comprises an elastic connection, the first one-way valve flap (23) being connected to the flow-through valve inner tube portion (21) by means of an elastic connection.

7. The dropper device with reciprocating flow-through function according to claim 6, wherein the elastic connector comprises a spiral connecting rib (27), one end of the spiral connecting rib (27) at the center is connected with the first one-way valve flap (23), and one end of the spiral connecting rib (27) at the outer edge is connected with the inner tube part (21) of the flow-through valve; or

Elastic connection spare includes several connection rib (28) of buckling form, several the connection rib (28) of buckling form distribute with around the check valve clack, and each the one end of buckling form connection rib (28) with first check valve clack (23) are connected, each the other end of buckling form connection rib (28) with pipe portion (21) are connected in the circulation valve.

8. The burette apparatus with reciprocating flow function according to claim 1, wherein the limiting assembly comprises a limiting member (29), the limiting member (29) is located on the upper side of the first one-way valve flap (23), the first one-way valve flap (23) is located on the liquid inlet hole (121), the first one-way valve flap (23) is movable between the limiting member (29) and the liquid inlet hole (121), and the limiting member (29) is provided with a flow passage for the liquid to flow through.

9. The dropper device with the reciprocating flow function according to claim 1, wherein the connecting portion of the reciprocating flow valve installation cavity (12) and the bottle body connecting portion (11) is provided with an air filling hole (14).

10. The dropper apparatus with reciprocating flow-through function according to claim 1, wherein the inner wall of the outer tube portion (22) of the flow-through valve is provided with a scraping sealing rib (221).

11. The dropper device with the reciprocating flow function according to claim 1, wherein the outer wall of the outer tube part (22) of the flow valve is provided with a fixed sealing rib (222), the inner wall of the reciprocating flow valve installation cavity (12) is provided with a limiting ring (124), and the limiting ring (124) is arranged on the upper side of the fixed sealing rib (222).

12. The dropper device with reciprocating flow function according to claim 1, wherein the communicating means (1) further comprises a material body guide (15), the material body guide (15) being connected with the reciprocating flow valve seating chamber (12).

13. A dropper device with a reciprocating flow function according to claim 1, wherein the dropper device with a reciprocating flow function further comprises a material taking mechanism (3);

the communicating mechanism (1) further comprises a material taking mechanism connecting part (13), and the material taking mechanism connecting part (13) is connected with the external bottle body through the bottle body connecting part (11);

the material taking mechanism (3) comprises a material taking dropper (311), and when the material taking mechanism (3) is covered on the communicating mechanism (1) through the material taking mechanism connecting part (13), the material taking dropper (311) penetrates through the material taking mechanism connecting part (13) and extends into the double-flow valve in the reciprocating flow valve arranging cavity (12).

14. A dropper arrangement with reciprocating flow through functionality according to claim 13, wherein the pick-up mechanism (3) comprises a pressing member (32), a communicating mechanism connection member (31) provided with the pick-up dropper (311) and a resilient assembly (33);

the communicating mechanism connecting piece (31) further comprises a communicating mechanism connecting part (312) and a pressing component placing part (313), wherein the communicating mechanism connecting piece (31) is connected with the material taking dropper (311), the material taking mechanism connecting part (13) is sleeved with the communicating mechanism connecting part (312), the material taking dropper (311) is located on the lower side of the pressing component placing part (313), the pressing piece (32) is movably arranged in the pressing component placing part (313), and the pressing piece (32) extends out of a protruding part (321) towards the direction of the material taking dropper (311);

the elastic component (33) comprises an elastic piece (331) and a piston piece (332), the piston piece (332) is movably arranged in the pressing component placing portion (313) and connected with the protruding portion (321), the elastic piece (331) is sleeved on the protruding portion (321), one end of the elastic piece (331) abuts against the pressing piece (32), and the other end of the elastic piece (331) abuts against the communicating mechanism connecting piece (31).

15. The burette apparatus with reciprocating flow function as claimed in claim 14, wherein a first limit hook (3321) is disposed on the piston member (332), a second limit hook (3212) is disposed on the protruding portion (321), the piston member (332) and the protruding portion (321) are connected to each other via the first limit hook (3321) and the second limit hook (3212), and a movable space is disposed between the first limit hook (3321) and the second limit hook (3212) to allow the protruding portion (321) to have a dead stroke with a preset distance when the piston member (332) is driven to move.

16. The pipette device with reciprocal flow-through functionality according to claim 14,

an external thread (322) is arranged on the outer wall of the pressing piece (32), a pressing piece connecting thread (131) matched with the external thread (322) is arranged on the inner wall of the material taking mechanism connecting part (13), and the pressing piece (32) is locked by matching the external thread (322) with the pressing piece connecting thread (131) when the communicating mechanism connecting part (31) rotates;

still be equipped with first stop part (323) on the outer wall of pressing piece (32), be equipped with on pressing assembly arrangement portion (313) with first stop part (323) second stop part (3131) of mutually supporting, first stop part (323) are located second stop part (3131) downside.

17. The burette apparatus with reciprocating flow function as claimed in claim 16, wherein the pressing member (32) is further provided with a sounding poke sheet (324) on the outer wall thereof, and the material taking mechanism connecting part (13) is provided with a sounding stop point (132) which is matched with the sounding poke sheet (324).

18. The dropper device with reciprocating flow-through function according to claim 16, wherein the button cover (7) is sleeved on the upper side of the pressing piece (32);

a burette jacket (5) is arranged on the outer side of the communicating mechanism connecting piece (31), and a through hole for the button cover (7) to move is formed in the top surface of the burette jacket (5).

19. A dropper device with reciprocating flow through capability as claimed in claim 3, wherein the first one-way valve flap (23) is of bowl, spherical or conical configuration.

20. A container with a reciprocating circulation function, characterized by comprising a dropper device with a reciprocating circulation function and a bottle body (9) according to any one of claims 1 to 19, wherein the dropper device with a reciprocating circulation function is connected with the bottle body (9) through the bottle body connecting part (11); wherein:

the top surface of the bottle opening of the bottle body (9) is provided with a convex block (91) or a groove (92); and a flexible gasket (8) is arranged at the position, in the bottle body connecting part (11), contacted with the top surface of the bottle mouth.

21. A containing system with a reciprocating circulation function, characterized by comprising a dropper device with a reciprocating circulation function as claimed in any one of claims 1 to 19, a first bottle body and a second bottle body, wherein a liquid inlet hole (121) in the dropper device with a reciprocating circulation function is communicated with the first bottle body, and a liquid outlet hole (123) in the dropper device with a reciprocating circulation function is communicated with the second bottle body.