CN220263750U

CN220263750U - Quantitative liquid outlet container cover

Info

Publication number: CN220263750U
Application number: CN202321826957.2U
Authority: CN
Inventors: 金昌道
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2023-12-29
Anticipated expiration: 2033-07-12

Abstract

The utility model discloses a quantitative liquid outlet container cover which comprises a cover body, wherein a liquid outlet nozzle is arranged on the side wall of the cover body, a liquid outlet channel is formed in the liquid outlet nozzle, an interface is arranged on the inner top of the cover body, a flow guide channel is arranged on the inner top of the cover body and positioned on the inner side of the interface, the quantitative liquid outlet container cover further comprises a sealing ring, a liquid storage pipe and a liquid storage barrel, an annular step is arranged on the side wall of the lower end of the flow guide channel, and the upper end of the liquid storage pipe is connected with the side wall of the annular step and used for pressing the sealing ring on the annular step; the liquid storage tube is sleeved outside the liquid storage tube, the lower end of the liquid storage tube is fixed with the inner bottom of the liquid storage tube, a liquid storage cavity with an opening at the upper end is formed between the liquid storage tube and the liquid storage tube, a liquid inlet communicated with the bottom of the liquid storage cavity is formed in the side wall of the lower part of the liquid storage tube, a first sphere is arranged inside the liquid storage tube and is used for propping against the lower end of the sealing ring and sealing the sealing ring; the utility model can conveniently control the quantitative liquid outlet of the container cover.

Description

Quantitative liquid outlet container cover

Technical Field

The utility model relates to the technical field of container covers, in particular to a quantitative liquid outlet container cover.

Background

At present, chinese patent bulletin number: CN107380692a discloses a container cover capable of metering and pouring out liquid, which comprises an outer tube body, wherein the bottom of the outer tube body is closed, the upper end is an opening, the middle outer circle of the outer tube body is integrally formed with a clamping seat capable of being connected with a container mouth, the lower tube body of the outer tube body at the lower part of the clamping seat can extend into an inner cavity of the container, a clamping ring is arranged on the outer tube at the upper part of the clamping seat, at least one first liquid inlet hole is formed in the side wall of the lower tube body, which is close to the bottom, a rotatable inner tube body is arranged in the inner hole of the outer tube body, the top of the inner tube body is closed, the bottom end of the inner tube body is abutted against the inner bottom surface of the outer tube body, the side wall at the lower part of the inner tube body is provided with a second liquid inlet hole corresponding to the first liquid inlet hole, the outer circle at the upper part of the inner tube body is provided with a cover cap which is clamped with the clamping ring, the cover cap is provided with a first liquid outlet hole, and the second liquid outlet hole corresponding to the first liquid outlet hole is formed on the cover cap; when the container cover capable of metering and pouring out liquid is used, the cover is arranged in an upper opening of the container, the inner pipe body is rotated to enable a second liquid inlet at the lower part of the inner pipe body to coincide with a first liquid inlet hole of the lower pipe body of the outer pipe body, two liquid outlets at the upper part of the inner pipe body are in a state of being separated by the side wall of the outer pipe body during rotation, the container body is inclined, liquid in the container body can enter the inner pipe body through the first liquid inlet hole and the second liquid inlet hole which are coincident, and the size of the inner cavity of the inner pipe body determines the quantity of the liquid to be metered at the moment; the inner pipe body is rotated, the first liquid inlet hole and the second liquid inlet hole at the lower part are staggered, liquid in the container is blocked, two liquid outlets at the upper part of the inner pipe body can be in a communicated state while rotating, and quantitative liquid in the inner pipe can flow out of the two communicated liquid outlet holes; thereby realizing the purpose of quantitative liquid discharge; however, in the use process of the container cover capable of metering and pouring out liquid, in order to enable the container cover to achieve the purpose of quantitative liquid pouring, a user needs to rotate the inner pipe body back and forth, so that the defect of inconvenient use exists.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the quantitative liquid outlet container cover which can conveniently control quantitative liquid outlet of the container cover, namely has the advantage of convenient use of the container cover.

The quantitative liquid outlet container cover comprises a cover body, wherein a liquid outlet nozzle is arranged on the side wall of the cover body, a liquid outlet channel is formed in the liquid outlet nozzle, an interface is arranged on the inner top of the cover body and is used for being connected with a container opening of a container, a flow guide channel is arranged on the inner top of the cover body and positioned on the inner side of the interface, the inner end of the liquid outlet channel is communicated with the upper end of the flow guide channel, the quantitative liquid outlet container cover further comprises a sealing ring, a liquid storage pipe with an opening at the upper end and a cavity in the inner part and a liquid storage barrel with the opening at the upper end, an annular step is arranged on the side wall of the lower end of the flow guide channel, the sealing ring is arranged on the inner side of the annular step, and the upper end of the liquid storage pipe is connected with the side wall of the annular step and is used for pressing the sealing ring on the annular step; the outside at the liquid storage tube is established to the liquid storage tube cover, the lower extreme of liquid storage tube is fixed with the interior bottom of liquid storage tube, form upper end open-ended stock solution chamber between liquid storage tube and the liquid storage tube, be provided with the inlet with the bottom intercommunication of stock solution chamber on the lateral wall of liquid storage tube lower part, the inlet is located the liquid storage tube and keeps away from the one side of drain tap, the inside of liquid storage tube is provided with first spheroid, after the lid slope is in order to make the liquid in the liquid storage tube discharge through water conservancy diversion passageway and drain passageway, first spheroid is used for leaning on and realizing the shutoff to the sealing washer with the lower extreme counterbalance of sealing washer, leave the clearance between the outer wall of liquid storage tube upper end and the inner wall of the container mouth of container after the container mouth and interface connection.

The utility model can conveniently control the quantitative liquid outlet of the container cover, i.e. has the advantage of convenient use of the container cover.

The quantitative liquid outlet container cover comprises a sealing ring, wherein a flow guide channel is arranged above the sealing ring, and a second ball is arranged in the flow guide channel and is used for abutting against the upper end of the sealing ring and sealing the sealing ring when the cover body is in a vertical state; after the second ball body is arranged in the flow guide channel above the sealing ring, when the cover body is in a vertical state, the second ball body can prop against the upper end of the sealing ring and seal the sealing ring, so that the volatilization of liquid in the container can be avoided when the container and the container cover are not used.

The quantitative liquid outlet container cover comprises a liquid storage pipe, a liquid outlet pipe and a liquid outlet cover body, wherein the liquid storage pipe is arranged on the liquid storage pipe; through adopting this structure, first ball body can reliably slide and connect in the inside of liquid reserve pipe, and after the liquid in the liquid reserve pipe is discharged through water conservancy diversion passageway and liquid outlet passage, first ball body can lean on and realize the reliable shutoff to the sealing washer with the lower extreme of sealing washer.

The utility model relates to a quantitative liquid outlet container cover, wherein a vent hole communicated with the upper part of a liquid storage cavity is arranged on the side wall of the upper part of a liquid storage pipe, and the vent hole is positioned at one side of the liquid storage pipe away from a liquid outlet nozzle; the side wall of the upper part of the liquid storage pipe is provided with the vent hole communicated with the upper part of the liquid storage cavity, and the vent hole is positioned at one side of the liquid storage pipe away from the liquid outlet nozzle, so that in the process that the cover body is inclined, and liquid in the liquid storage pipe is discharged through the flow guide channel and the liquid outlet channel, air positioned outside the liquid storage pipe can enter the liquid storage pipe through the vent hole, namely, the liquid storage pipe discharges liquid and enters the liquid storage pipe, and the liquid in the liquid storage pipe is conveniently discharged through the flow guide channel and the liquid outlet channel; and in the process that the liquid in the liquid storage cavity enters the liquid storage pipe through the liquid inlet, the air in the liquid storage pipe is conveniently discharged into the liquid storage cavity, so that the liquid in the liquid storage cavity is conveniently introduced into the liquid storage pipe through the liquid inlet.

The quantitative liquid outlet container cover is characterized in that an air inlet hole is formed in the upper end of a cover body, the air inlet hole is positioned between an interface and a flow guide channel, and the air inlet hole is positioned at one side of a liquid storage pipe away from a liquid outlet nozzle; through set up the inlet port in the upper end of lid, the inlet port is located between interface and the water conservancy diversion passageway, and the inlet port is located the liquid reserve pipe and keep away from the one side of liquid outlet nozzle to at the lid slope, and the liquid in the liquid reserve pipe is through water conservancy diversion passageway and the in-process of liquid outlet channel exhaust, in the air in the external environment can enter into the container through the inlet port, can avoid the state that appears the negative pressure in the container promptly, and then can be convenient for be arranged in the liquid reserve pipe and pass through water conservancy diversion passageway and liquid outlet channel discharge.

The quantitative liquid outlet container cover comprises a cover body, wherein the upper end of the cover body is connected with a decorative cover, a notch for avoiding a liquid outlet nozzle is arranged on the side wall of the decorative cover, and a gap is reserved between the side wall of the notch and the outer wall of the liquid outlet nozzle; through the setting of decorating the lid, can improve the pleasing to the eye degree of lid, and can realize the shielding to the inlet port to avoid the dust to enter into the container through the inlet port, and because leave the clearance between the lateral wall of breach and the outer wall of liquid outlet nozzle, thereby the air in the external environment of being convenient for enters into the container through clearance and the inlet port between lateral wall and the outer wall of liquid outlet nozzle of breach in proper order.

The quantitative liquid outlet container cover comprises a cover body, wherein a slot is formed in the edge of the upper end of the cover body, and the lower end of the decorative cover is inserted into the slot and is fixedly bonded with the slot; by adopting this structure, the decorative cover can be reliably fixed to the upper end of the cover body.

The quantitative liquid outlet container cover comprises a container body, wherein the container body is provided with a container opening, and the container opening is connected with a container through the container opening; the upper end of the liquid storage pipe is in threaded connection with the side wall of the annular step; the lower end of the liquid storage tube is in threaded connection with the inner bottom of the liquid storage cylinder; through adopting this kind of structure, the container mouth of container can be convenient and reliably be in the same place with the interface connection, and the upper end of stock solution pipe can be reliably with annular step's lateral wall link together, in addition, the lower extreme of stock solution pipe also can be conveniently fixed together with the inner bottom of stock solution section of thick bamboo.

The quantitative liquid outlet container cover is characterized in that a dust cover is rotatably connected to the outer end part of a liquid outlet nozzle; through the setting of shield, when the vertical placing of container lid is that the liquid outlet mouth stops the liquid, the shield can rotate down and realize the shielding to the liquid outlet mouth under the action of gravity to can avoid entering into in the liquid outlet channel.

The utility model relates to a quantitative liquid outlet container cover, wherein a pair of rotating shafts are arranged at the upper end of a dust cover and towards one side of a liquid outlet nozzle, a pair of shaft holes are arranged on the outer wall of the liquid outlet nozzle, and the pair of rotating shafts are rotationally connected with the pair of shaft holes; by adopting the structure, the upper end of the dust cover can be reliably connected with the liquid outlet in a rotating way.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a partially exploded perspective view of the present utility model;

fig. 3 is a schematic cross-sectional view of the present utility model.

Detailed Description

Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.

In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

As shown in fig. 1-3, the quantitative liquid outlet container cover comprises a cover body 1, wherein a liquid outlet nozzle 11 is arranged on the side wall of the cover body 1, a liquid outlet channel 12 is formed in the liquid outlet nozzle 11, an interface 13 is arranged on the inner top of the cover body 1, the interface 13 is used for being connected with a container mouth of a container, a diversion channel 14 is arranged on the inner top of the cover body 1 and positioned on the inner side of the interface 13, the inner end of the liquid outlet channel 12 is communicated with the upper end of the diversion channel 14, the quantitative liquid outlet container cover further comprises a sealing ring 2, a liquid storage pipe 3 with an opening at the upper end and provided with a cavity in the inner part and a liquid storage barrel 4 with an opening at the upper end and provided with a cavity in the inner part, an annular step 15 is arranged on the side wall of the lower end of the diversion channel 14, the sealing ring 2 is arranged on the inner side of the annular step 15, and the upper end of the liquid storage pipe 3 is connected with the side wall of the annular step 15 and used for pressing the sealing ring 2 on the annular step 15; the outside at liquid storage tube 3 is established to liquid storage tube 4 cover, the lower extreme of liquid storage tube 3 is fixed with the interior bottom of liquid storage tube 4, form upper end open-ended stock solution chamber 5 between liquid storage tube 4 and the liquid storage tube 3, be provided with the inlet 31 with the bottom intercommunication of stock solution chamber 5 on the lateral wall of liquid storage tube 3 lower part, inlet 31 is located the liquid storage tube 3 and keeps away from the one side of liquid outlet 11, the inside of liquid storage tube 3 is provided with first spheroid 6, after lid 1 slope is so that the liquid in the liquid storage tube 3 is discharged through water conservancy diversion passageway 14 and liquid outlet passageway 12, first spheroid 6 is used for leaning on and realizing the shutoff to sealing washer 2 with the lower extreme of sealing washer 2, leave the clearance between the outer wall of liquid storage tube 4 upper end and the inner wall of container mouth after the container mouth is connected with interface 13.

A second sphere 7 is arranged in a diversion channel 14 above the sealing ring 2, and when the cover body 1 is in a vertical state, the second sphere 7 is used for propping against the upper end of the sealing ring 2 and sealing the sealing ring 2; after the second ball body is arranged in the flow guide channel above the sealing ring, when the cover body is in a vertical state, the second ball body can prop against the upper end of the sealing ring and seal the sealing ring, so that the volatilization of liquid in the container can be avoided when the container and the container cover are not used.

The outer wall of the first sphere 6 is attached to the inner wall of the liquid storage tube 3, and the first sphere 6 is in sliding fit with the liquid storage tube 3; through adopting this structure, first ball body can reliably slide and connect in the inside of liquid reserve pipe, and after the liquid in the liquid reserve pipe is discharged through water conservancy diversion passageway and liquid outlet passage, first ball body can lean on and realize the reliable shutoff to the sealing washer with the lower extreme of sealing washer.

The side wall of the upper part of the liquid storage pipe 3 is provided with a vent hole 32 communicated with the upper part of the liquid storage cavity 5, and the vent hole 32 is positioned at one side of the liquid storage pipe 3 far away from the liquid outlet nozzle 11; the side wall of the upper part of the liquid storage pipe is provided with the vent hole communicated with the upper part of the liquid storage cavity, and the vent hole is positioned at one side of the liquid storage pipe away from the liquid outlet nozzle, so that in the process that the cover body is inclined, and liquid in the liquid storage pipe is discharged through the flow guide channel and the liquid outlet channel, air positioned outside the liquid storage pipe can enter the liquid storage pipe through the vent hole, namely, the liquid storage pipe discharges liquid and enters the liquid storage pipe, and the liquid in the liquid storage pipe is conveniently discharged through the flow guide channel and the liquid outlet channel; and in the process that the liquid in the liquid storage cavity enters the liquid storage pipe through the liquid inlet, the air in the liquid storage pipe is conveniently discharged into the liquid storage cavity, so that the liquid in the liquid storage cavity is conveniently introduced into the liquid storage pipe through the liquid inlet.

The upper end of the cover body 1 is provided with an air inlet hole 16, the air inlet hole 16 is positioned between the interface 13 and the diversion channel 14, and the air inlet hole 16 is positioned at one side of the liquid storage tube 3 far away from the liquid outlet nozzle 11; through set up the inlet port in the upper end of lid, the inlet port is located between interface and the water conservancy diversion passageway, and the inlet port is located the liquid reserve pipe and keep away from the one side of liquid outlet nozzle to at the lid slope, and the liquid in the liquid reserve pipe is through water conservancy diversion passageway and the in-process of liquid outlet channel exhaust, in the air in the external environment can enter into the container through the inlet port, can avoid the state that appears the negative pressure in the container promptly, and then can be convenient for be arranged in the liquid reserve pipe and pass through water conservancy diversion passageway and liquid outlet channel discharge.

The upper end of the cover body 1 is connected with a decorative cover 8, a gap 81 for avoiding the liquid outlet nozzle 11 is arranged on the side wall of the decorative cover 8, and a gap is reserved between the side wall of the gap 81 and the outer wall of the liquid outlet nozzle 11; through the setting of decorating the lid, can improve the pleasing to the eye degree of lid, and can realize the shielding to the inlet port to avoid the dust to enter into the container through the inlet port, and because leave the clearance between the lateral wall of breach and the outer wall of liquid outlet nozzle, thereby the air in the external environment of being convenient for enters into the container through clearance and the inlet port between lateral wall and the outer wall of liquid outlet nozzle of breach in proper order.

The edge of the upper end of the cover body 1 is provided with a slot 17, and the lower end of the decorative cover 8 is inserted into the slot 17 and is adhered and fixed with the slot 17; by adopting this structure, the decorative cover can be reliably fixed to the upper end of the cover body.

The inner wall of the interface 13 is provided with an internal thread 131, and the interface 13 is in threaded connection with a container mouth of the container through the internal thread 131; the upper end of the liquid storage tube 3 is in threaded connection with the side wall of the annular step 15; the lower end of the liquid storage tube 3 is in threaded connection with the inner bottom of the liquid storage cylinder 4; through adopting this kind of structure, the container mouth of container can be convenient and reliably be in the same place with the interface connection, and the upper end of stock solution pipe can be reliably with annular step's lateral wall link together, in addition, the lower extreme of stock solution pipe also can be conveniently fixed together with the inner bottom of stock solution section of thick bamboo.

The outer end part of the liquid outlet nozzle 11 is rotationally connected with a dust cover 9; through the setting of shield, when the vertical placing of container lid is that the liquid outlet mouth stops the liquid, the shield can rotate down and realize the shielding to the liquid outlet mouth under the action of gravity to can avoid entering into in the liquid outlet channel.

A pair of rotating shafts 91 are arranged at the upper end of the dust cover 9 and towards one side of the liquid outlet nozzle 11, a pair of shaft holes 111 are arranged on the outer wall of the liquid outlet nozzle 11, and the pair of rotating shafts 91 are rotatably connected with the pair of shaft holes 111; by adopting the structure, the upper end of the dust cover can be reliably connected with the liquid outlet in a rotating way.

When the liquid storage device is used, the container cover is connected to the container opening of the container, namely the connector is connected with the container opening of the container, then the container cover and the container are inclined, at the moment, liquid in the container can enter the liquid storage cavity, meanwhile, liquid in the liquid storage pipe can be discharged through the flow guide channel and the liquid outlet channel (the dust cover can automatically rotate and open under the action of gravity to remove shielding of the liquid outlet), after the liquid in the liquid storage pipe is emptied, the first ball body can abut against the lower end of the sealing ring and realize sealing of the sealing ring, namely the purpose of quantitative liquid discharge is realized, when a user places the container again, namely the container cover is in a vertical state again, the first ball body can slide to the inner bottom of the liquid storage pipe, and the liquid entering the liquid storage cavity can enter the liquid storage pipe through the liquid inlet to be discharged next time, and meanwhile, the second ball body can abut against the upper end of the sealing ring and realize sealing of the sealing ring.

The foregoing description is only illustrative of the utility model and is not to be construed as limiting the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present utility model, should be included in the scope of the claims of the present utility model.

Claims

1. The utility model provides a ration goes out liquid container lid, includes lid (1), be provided with liquid mouth (11) on the lateral wall of lid (1), the inside of liquid mouth (11) forms drain passageway (12), be provided with interface (13) on the interior top of lid (1), interface (13) are used for being connected with the container mouth of container, on the interior top of lid (1) and be located the inboard of interface (13) is provided with water conservancy diversion passageway (14), the inner and the upper end intercommunication of water conservancy diversion passageway (14) of drain passageway (12), its characterized in that: the quantitative liquid outlet container cover further comprises a sealing ring (2), a liquid storage pipe (3) with an opening at the upper end and a cavity arranged in the liquid storage pipe, and a liquid storage cylinder (4) with the opening at the upper end and the cavity arranged in the liquid storage pipe, an annular step (15) is arranged on the side wall of the lower end of the flow guide channel (14), the sealing ring (2) is arranged on the inner side of the annular step (15), and the upper end of the liquid storage pipe (3) is connected with the side wall of the annular step (15) and used for pressing the sealing ring (2) on the annular step (15); the liquid storage tube (4) is sleeved outside the liquid storage tube (3), the lower end of the liquid storage tube (3) is fixed with the inner bottom of the liquid storage tube (4), an upper end opening liquid storage cavity (5) is formed between the liquid storage tube (4) and the liquid storage tube (3), a liquid inlet (31) communicated with the bottom of the liquid storage cavity (5) is formed in the side wall of the lower portion of the liquid storage tube (3), the liquid inlet (31) is formed in one side, far away from the liquid outlet (11), of the liquid storage tube (3), a first ball body (6) is arranged in the liquid storage tube (3), and when the cover body (1) is inclined to enable liquid in the liquid storage tube (3) to be discharged through the diversion channel (14) and the liquid outlet channel (12), the first ball body (6) is used for propping against the lower end of the sealing ring (2) and sealing the sealing ring (2), and after the container opening of the container is connected with the interface (13), a gap is reserved between the outer wall of the upper end of the liquid storage tube (4) and the inner wall of the container.

2. The quantitative liquid outlet container cover according to claim 1, wherein a second sphere (7) is arranged in a diversion channel (14) above the sealing ring (2), and when the cover body (1) is in a vertical state, the second sphere (7) is used for propping against the upper end of the sealing ring (2) and sealing the sealing ring (2).

3. A dosing cap according to claim 1, characterized in that the outer wall of the first sphere (6) is in contact with the inner wall of the reservoir (3) and that the first sphere (6) is in sliding engagement with the reservoir (3).

4. A dosing cap according to any one of claims 1-3, characterized in that a vent hole (32) communicating with the upper part of the reservoir (5) is provided in the side wall of the upper part of the reservoir (3), said vent hole (32) being located on the side of the reservoir (3) remote from the outlet mouth (11).

5. A dosing cap according to any one of claims 1-3, characterized in that the upper end of the cap body (1) is provided with an air inlet hole (16), the air inlet hole (16) being located between the mouthpiece (13) and the flow guiding channel (14), the air inlet hole (16) being located at a side of the liquid storage tube (3) remote from the liquid outlet mouth (11).

6. The quantitative liquid outlet container cover according to claim 5, wherein the upper end of the cover body (1) is connected with a decorative cover (8), a gap (81) for avoiding the liquid outlet nozzle (11) is arranged on the side wall of the decorative cover (8), and a gap is reserved between the side wall of the gap (81) and the outer wall of the liquid outlet nozzle (11).

7. The quantitative liquid outlet container cover according to claim 6, wherein a slot (17) is provided at the edge of the upper end of the cover body (1), and the lower end of the decorative cover (8) is inserted into the slot (17) and is adhered and fixed with the slot (17).

8. A dosing cap according to any one of claims 1-3, characterized in that the inner wall of the mouthpiece (13) is provided with an internal thread (131), the mouthpiece (13) being screwed with the mouth of the container by means of the internal thread (131); the upper end of the liquid storage pipe (3) is in threaded connection with the side wall of the annular step (15); the lower end of the liquid storage tube (3) is in threaded connection with the inner bottom of the liquid storage cylinder (4).

9. A dosing cap according to any one of claims 1-3, characterized in that a dust cap (9) is rotatably connected at the outer end of the spout (11).

10. The quantitative liquid outlet container cover according to claim 9, wherein a pair of rotating shafts (91) are arranged at the upper end of the dust cover (9) and towards one side of the liquid outlet nozzle (11), a pair of shaft holes (111) are arranged on the outer wall of the liquid outlet nozzle (11), and the pair of rotating shafts (91) are rotatably connected with the pair of shaft holes (111).