CN211996915U - Rotary control liquid outlet cover - Google Patents

Abstract

The application discloses a rotary control liquid outlet cover which is used for being matched with a bottle opening of a containing bottle and comprises an inner cover and an outer cover which are mutually nested and are in running fit, wherein an elastic sealing gasket is fixedly embedded in the end part of the inner cover and abuts against the end part of the outer cover through the sealing gasket; a plurality of liquid quantity adjusting holes corresponding to the positions are formed in the end part of the inner cover and the sealing gasket, a liquid outlet hole is formed in the end part of the outer cover, and the liquid outlet hole is communicated with the liquid quantity adjusting holes in the corresponding positions when the outer cover rotates relative to the inner cover; and axial anti-falling parts which are matched with each other are also arranged between the inner cover and the outer cover. The application provides a rotary control goes out liquid lid realizes different customers to the demand of different liquid volumes.

Description

Rotary control liquid outlet cover

Technical Field

The application relates to the field of cosmetic packaging, in particular to a rotary control liquid outlet cover.

Background

Cosmetics on the existing market comprise emulsion, essence and the like, the liquid outlet mode of a bottle opening of the cosmetics is simple, the liquid outlet amount is the same every time, the requirements of different customers on the liquid outlet amounts of different liquids cannot be met frequently, and if the liquid outlet amount is too large, waste of different degrees is caused frequently.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem of the requirements of different customers on the liquid outlet amount of different liquids, a rotary control liquid outlet cover is needed to be provided.

The application provides a rotary control liquid outlet cover which is used for being matched with a bottle opening of a containing bottle and comprises an inner cover and an outer cover which are mutually nested and are in running fit, wherein an elastic sealing gasket is fixedly embedded in the end part of the inner cover and abuts against the end part of the outer cover through the sealing gasket; a plurality of liquid quantity adjusting holes corresponding to the positions are formed in the end part of the inner cover and the sealing gasket, a liquid outlet hole is formed in the end part of the outer cover, and the liquid outlet hole is communicated with the liquid quantity adjusting holes in the corresponding positions when the outer cover rotates relative to the inner cover; and axial anti-falling parts which are matched with each other are also arranged between the inner cover and the outer cover.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the inner cup includes first tube-shape portion, the axial one end of first tube-shape portion is for open end and be used for butt joint with the bottleneck of containing bottle, the tip of inner cup is located the axial other end of first tube-shape portion, the inner wall of first tube-shape portion is equipped with the axial anticreep muscle with containing bottle matched with.

Optionally, an insertion groove is formed in an end portion of the inner cover, the sealing gasket is made of an elastic material and fixed in the insertion groove, and at least one portion of the sealing gasket in the thickness direction is higher than the insertion groove and abuts against an end portion of the outer cover through the higher portion.

Optionally, a positioning protrusion is arranged at the bottom of the caulking groove, and a positioning clamping groove matched with the positioning protrusion is arranged on the sealing gasket.

Optionally, a limiting convex ring is arranged at one side of the end part of the outer cover facing the sealing gasket, and the part of the sealing gasket, which is higher than the caulking groove, is limited by the limiting convex ring.

Optionally, the enclosing cover establishes the outside second tube-shape portion of inner cup including the cover, the axial one end of second tube-shape portion is used for accomodating the inner cup, the tip of enclosing cover is located the axial other end of second tube-shape portion, the tip of enclosing cover has the depressed area, just the bottom of depressed area with the gasket is laminated mutually.

Optionally, an annular guide cylinder is formed at the periphery of the recessed area at the end of the outer cover, and the guide cylinder and the sealing gasket are respectively located at two sides of the recessed area in the axial direction of the outer cover.

Optionally, the local region of draft tube has relatively long axial dimensions and just as the outflow mouth, the eccentric setting of play liquid hole is in the tip of enclosing cover, just the radial position of play liquid hole be close to with the outflow mouth.

Optionally, be equipped with the rotation limiting part of mutually supporting between the inner cup with the enclosing cover, rotation limiting part includes:

a plurality of clamping grooves are distributed on the outer wall of the inner cover at intervals along the circumferential direction of the inner cover;

the positioning rib is positioned on the inner wall of the outer cover and matched with the clamping groove;

the draw-in groove is many and corresponds a liquid measure gear respectively, go out liquid hole and correspond one of them liquid measure gear when certain liquid measure regulation hole intercommunication, under current liquid measure gear, a draw-in groove that corresponds is gone into to the location muscle card.

Optionally, the rotation limiting member further includes:

the positioning rib is abutted to the radial boss when the outer cover rotates to the limit position relative to the inner cover.

The application provides a pair of rotary control goes out liquid lid, through rotatory enclosing cover for the liquid measure adjustment hole of internal diameter variation in size is linked together on the play liquid hole of enclosing cover and the inner cup, flows out liquid lid via liquid measure adjustment hole, play liquid hole with control liquid, realizes different customers to the demand of different liquid quantities, does not produce the waste of extra liquid, and the seal gasket of the tip of inner cup keeps good leakproofness between inner cup and the enclosing cover.

Drawings

Fig. 1 is a schematic perspective view illustrating a rotary control liquid outlet cover and a bottle according to an embodiment of the present disclosure;

fig. 2 is an exploded view of the rotary control liquid outlet cover and the bottle shown in fig. 1;

FIG. 3 is a schematic view of the mounting structure of the rotation control liquid outlet cover and the bottle mouth shown in FIG. 1;

FIG. 4 is an exploded view of the inner lid of the rotary control liquid outlet cover shown in FIG. 2;

FIG. 5 is a schematic view of the inner lid of the rotary control liquid outlet cover shown in FIG. 2 at another viewing angle;

FIG. 6 is a cross-sectional schematic view of the inner cap shown in FIG. 5;

FIG. 7 is a schematic view of the gasket seal of the inner lid of FIG. 4 from another perspective

FIG. 8 is a schematic perspective view of the outer cover of the rotation-controlled liquid outlet cover shown in FIG. 1;

FIG. 9 is a cross-sectional view of the outer lid shown in FIG. 8;

FIG. 10 is a schematic view of the cover shown in FIG. 8 from another perspective;

fig. 11 is a schematic perspective view of the bottle opening of the bottle shown in fig. 2;

fig. 12 is a cross-sectional view of the spout shown in fig. 11.

The reference numerals in the figures are illustrated as follows:

100. a liquid outlet cover; 10. an inner cover; 11. an inner cap first end; 111. caulking grooves; 112. positioning the projection; 12. an inner cap second end; 13. sealing gaskets; 131. positioning the clamping groove; 14. liquid amount adjusting holes; 15. a first cylindrical portion; 151. preventing ribs from falling off axially; 1511. a first positioning convex ring; 152. rotating the limiting rib; 16. a seal ring; 20. an outer cover; 21. an outer cover first end; 211. a limit convex ring; 212. a recessed region; 213. a draft tube; 214. an outflow nozzle; 22. a second end of the outer cover; 23. a liquid outlet hole; 24. a second cylindrical portion; 30. an axial anti-slip member; 31. a first anti-slip ring; 32. a second anti-slip ring; 40. rotating the limiting part; 41. a card slot; 42. positioning ribs; 43. a radial boss; 200. a bottle mouth; 201. a second positioning convex ring; 202. a bottleneck clamping groove.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 12, an embodiment of the present application provides a rotation-controlled liquid outlet cap 100, and the liquid outlet cap 100 is matched with a bottle opening 200 to achieve an opening state or a closing state for opening the bottle opening 200. When the liquid outlet cap 100 is rotated to open the bottle mouth 200, the liquid in the bottle flows out through the bottle mouth 200 and the liquid outlet cap 100. When the liquid outlet cover 100 is rotated to enable the bottle mouth 200 to be in a closed state, the liquid does not leak when the bottle is placed at any angle. The bottle can be used for containing liquid such as emulsion, essence and the like, and the liquid in the bottle is not limited. It is understood that a cover can be added outside the rotation control liquid outlet cover 100.

Referring to fig. 2, the rotation-controlled liquid outlet cover 100 includes an inner cover 10 and an outer cover 20 nested with each other, and the inner cover 10 and the outer cover 20 are rotatably engaged with each other. When the outer cap 20 is rotated with respect to the inner cap 10, the inner cap 10 is not rotated with respect to the bottle mouth 200. An axial anti-slip element 30 is disposed between the inner cap 10 and the outer cap 20, and referring to fig. 3 and 4, the inner cap 10 and the outer cap 20 are kept fixed in position in the axial direction by the axial anti-slip element 30.

An elastic gasket 13 is fixedly fitted to an end of the inner lid 10, and the inner lid 10 is pressed against an end of the outer lid 20 by the gasket 13 to maintain the sealing property between the inner lid 10 and the outer lid 20. The end of the inner cover 10 and the sealing gasket 13 are provided with a plurality of liquid amount adjusting holes 14 corresponding to the positions, and the end of the outer cover 20 is provided with a liquid outlet hole 23. By rotating the outer cover 20, the liquid outlet hole 23 communicates with the liquid amount adjusting hole 14 at the corresponding position. The inner diameters of the liquid quantity adjusting holes 14 are different in size so as to meet the requirements of customers on the liquid outlet quantities of different liquids, and the inner diameter of the liquid outlet hole 23 is preferably larger than or equal to the maximum inner diameter of the liquid quantity adjusting hole 14. In one embodiment, the liquid amount adjusting holes 14 are divided into three types including a minimum liquid amount adjusting hole 14, a medium liquid amount adjusting hole 14, and a maximum liquid amount adjusting hole 14, and the center of each liquid amount adjusting hole 14 has a center angle of 63 ° with respect to the axis of the inner cap 10. It is understood that in other embodiments, the liquid amount adjusting holes 14 may be two or four, and the central angle may be 45 degrees, or the like.

The rotary control liquid outlet cover 100 provided by the embodiment is characterized in that the outer cover 20 is rotated, so that the liquid outlet hole 23 of the outer cover 20 is communicated with the liquid amount adjusting hole 14 with different inner diameters on the inner cover 10, so as to control liquid to flow out of the liquid outlet cover 100 through the liquid amount adjusting hole 14 and the liquid outlet hole 23, thereby realizing the requirements of different customers on different liquid amounts, avoiding the waste of extra liquid, and keeping good sealing performance between the inner cover 10 and the outer cover 20 by the sealing gasket 13 at the end part of the inner cover 10.

In another embodiment, the inner cap 10 has an inner cap first end 11 and an inner cap second end 12. referring to fig. 2, the inner cap first end 11 is the end of the inner cap 10, and the inner cap second end 12 is the end that is opposite to the bottle mouth 200 of the bottle. The inner cap 10 includes a first cylindrical portion 15, an axial end of the first cylindrical portion 15 is an open end and is used for abutting against the bottle mouth 200 of the containing bottle, an end portion of the inner cap 10 is located at the axial other end of the first cylindrical portion 15, the axial one end of the first cylindrical portion 15 corresponds to the inner cap second end 12, and the axial other end of the first cylindrical portion 15 corresponds to the inner cap first end 11.

The bottle mouth 200 of the bottle is inserted into and abutted against the first end 11 of the inner cap through the second end 12 of the inner cap, and the sealing ring 16 is arranged on one side of the end surface of the inner cap 10 facing the second end 12 of the inner cap, please refer to fig. 3 and 6, the bottle mouth 200 is inserted between the sealing ring 16 and the inner wall of the inner cap 10, and the outer wall of the bottle mouth 200 abuts against the sealing ring 16, the sealing ring 16 plays a role of circumferential positioning, and simultaneously can prevent the liquid in the bottle from flowing into the area between the bottle mouth 200 and the inner cap 10 through the bottle mouth 200, and improve. The end face of the inner cover 10 can be made of PP material, which is beneficial to improving the air tightness.

Specifically, referring to fig. 5, the inner wall of the first cylindrical portion 15 is provided with an axial anti-slip rib 151 matched with the bottle to axially position the first cylindrical portion 15. It can be understood that the axial retaining rib 151 may also be distributed on the first cylindrical portion 15 and the outer wall of the bottle mouth 200, for example, the axial retaining rib 151 is distributed on the inner wall of the first cylindrical portion 15 and is inwardly protruded with a first positioning convex ring 1511 and is outwardly protruded with a second positioning convex ring 201 on the outer wall of the bottle mouth 200, please refer to fig. 3, fig. 11 and fig. 12, the first positioning convex ring 1511 is abutted against the second positioning convex ring 201.

The first cylindrical inner wall is further provided with a rotation limiting rib 152 matched with the containing bottle, the rotation limiting rib 152 is shown in fig. 5, a bottle opening 200 of the containing bottle is provided with a bottle opening clamping groove 202 matched with the rotation limiting rib 152, the bottle opening clamping groove 202 is shown in fig. 11, and the rotation limiting rib 152 is clamped into the bottle opening clamping groove 202 so as to circumferentially position the inner cap 10 and the bottle opening 200. The rotation restricting ribs 152 are preferably plural, for example, two. Furthermore, the rotation limiting ribs 152 can be additionally arranged on the first cylindrical inner wall, and the additionally arranged rotation limiting ribs 152 are abutted to the outer wall of the bottle opening 200 for positioning. Specifically, the rotation limiting rib 152 is strip-shaped. In the use state of the bottle, the first cylindrical shape and the bottle opening 200 are relatively fixed and installed based on the combined action of the axial anti-falling rib 151 and the rotation limiting rib 152.

Referring to fig. 4, the end of the inner lid 10 is provided with a groove 111, the sealing gasket 13 is fixed in the groove 111, at least a portion of the sealing gasket 13 in the thickness direction is higher than the groove 111, and the higher portion abuts against the end of the outer lid 20, and the sealing gasket 13 is connected between the inner lid 10 and the outer lid 20 to improve the air tightness. The liquid amount adjusting hole 14 at the end of the inner cap 10 is opened at the bottom of the caulking groove 111.

In particular, the sealing gasket 13 is an elastomeric material, which is a thermoplastic elastomer and various special saturated rubbers that cannot be vulcanized with sulfur, understood as polymers with elasticity, such as rubber.

The shape of the sealing gasket 13 is adapted to the shape of the insert groove 111. In one embodiment, the sealing gasket 13 is generally circular in cross-section and is perpendicular to the axis of the inner lid 10.

Furthermore, a positioning protrusion 112 is disposed at the bottom of the insertion groove 111, a positioning slot 131 is disposed on the sealing gasket 13 and is matched with the positioning protrusion 112, as shown in fig. 7, the sealing gasket 13 is inserted into the insertion groove 111, so that the sealing gasket 13 and the inner lid 10 are relatively fixed. The top end of the positioning projection 112 is flush with the end surface of the inner cap 10. The positioning protrusion 112 is substantially in the shape of a strip, the middle of the strip is a circular protrusion, two sides of the circular protrusion are respectively connected with a linear protrusion, and each linear protrusion is connected with the circumferential inner wall of the caulking groove 111. In other embodiments, the positioning protrusion 112 may be curved, and the positioning protrusion 112 may be connected to the circumferential inner wall of the insertion groove 111, so that the sealing gasket 13 and the inner lid 10 can be fixed to each other.

In another embodiment, referring to fig. 3 and fig. 8 to fig. 10, a limiting convex ring 211 is disposed at an end of the outer cover 20 on a side facing the sealing gasket 13, a portion of the sealing gasket 13 higher than the embedding groove 111 is limited by the limiting convex ring 211, and the limiting convex ring 211 abuts against an end surface of the inner cover 10.

Specifically, the outer cover 20 has an outer cover first end 21 and an outer cover second end 22, referring to fig. 2, the outer cover first end 21 is an end surface of the outer cover 20, and the outer cover second end 22 is used for receiving the inner cover 10. The outer cap 20 includes a second cylindrical portion 24 disposed outside the inner cap 10, one axial end of the second cylindrical portion 24 is used for receiving the inner cap 10, and an end of the outer cap 20 is located at the other axial end of the second cylindrical portion 24, that is, the other axial end of the second cylindrical portion 24 corresponds to the outer cap first end 21, and the other axial end of the second cylindrical portion 24 corresponds to the outer cap second end 22.

Further, the end of the outer lid 20 has a recessed area 212, and the bottom of the recessed area 212 is attached to the sealing gasket 13, it can be understood that the recessed area 212 is formed by recessing the end of the outer lid 20, and the recessed area 212 is provided with the liquid outlet hole 23. The thickness of the bottom of the depressed area 212 is non-uniformly arranged and has a height difference, the side of the depressed area 212, which is attached to the sealing gasket 13, is flush with the horizontal plane, the side of the depressed area 212, which is separated from the sealing gasket 13, is not flush with the horizontal plane, the thickness of the bottom of the depressed area 212, which is adjacent to the liquid outlet hole 23, is smaller, and the thickness far away from the liquid outlet hole 23 is larger, so that after the action of pouring out the liquid is finished, the liquid is deposited at the liquid outlet hole 23 and flows back to the containing bottle.

Furthermore, the end of the outer lid 20 forms an annular guide cylinder 213 at the periphery of the recessed area 212, the guide cylinder 213 and the sealing gasket 13 are respectively located at two sides of the recessed area 212 in the axial direction of the outer lid 20, a partial area of the guide cylinder 213 has a relatively long axial dimension and serves as an outflow nozzle 214, the liquid outlet hole 23 is eccentrically arranged at the end of the outer lid 20, and the radial position of the liquid outlet hole 23 is adjacent to the outflow nozzle 214. The liquid enters the recessed area 212 through the sealing gasket 13 and flows out through the outlet nozzle 214 of the guide shell 213.

In another embodiment, the axial anti-slip means 30 of mutual cooperation between the inner cap 10 and the outer cap 20 comprises a first anti-slip ring 31 and a second anti-slip ring 32, the first anti-slip ring 31 is located on the outer wall of the inner cap 10, the second anti-slip ring 32 is located on the inner wall of the outer cap 20, and the second anti-slip ring 32 is axially abutted against the first anti-slip ring 31 to limit the axial direction of the inner cap 10 and the outer cap 20.

In another embodiment, a rotation limiting member 40 is disposed between the inner cap 10 and the outer cap 20, and specifically includes a locking groove 41 and a positioning rib 42. The clamping grooves 41 are formed in the outer wall of the inner cover 10 and distributed at intervals along the circumferential direction of the outer wall of the inner cover 10. The card slot 41 may be formed by additionally arranging a plurality of bosses at intervals to form the card slot 41. The positioning ribs 42 are located on the inner wall of the outer cover 20, and specifically, the number of the positioning ribs 42 is one.

Specifically, the plurality of card slots 41 correspond to one liquid level gear respectively, the liquid outlet hole 23 corresponds to one of the liquid level gears when being communicated with one of the liquid level adjusting holes 14, and the positioning rib 42 is clamped into the corresponding card slot 41 at the current liquid level gear. By rotating the outer cover 20, the positioning rib 42 is clamped into a certain clamping groove 41, and the liquid amount adjusting hole 14 of a specific gear is communicated with the liquid outlet hole 23.

Further, the rotation limiting member 40 further includes a radial boss 43 located on the outer wall of the inner cap 10, and when the outer cap 20 rotates to an extreme position relative to the inner cap 10, the positioning rib 42 abuts against the radial boss 43, so that the outer cap 20 cannot continue to rotate along the original direction, but only can rotate in the opposite direction. The radial boss 43 extends radially to a thickness greater than the thickness of the boss used to form the card slot 41.

The assembly mode that the rotation control goes out liquid lid 100 that this application provided does: the outer cap 20 is placed into the inner cap 10, pressed into place with a jig, and then placed into the bottle mouth 200, pressed into place with a pneumatic table. When the rotary control liquid outlet cover 100 is covered on the bottle opening 200, the bottle opening 200 is in a closed state, liquid cannot leak out when the bottle is placed at any angle, the air tightness is good, and when the outer cover 20 is rotated for a certain angle, the liquid outlet hole 23 is communicated with the liquid amount adjusting hole 14, so that the liquid can be poured out conveniently. In one embodiment, the outer cover 20 is rotated by 63 °, and the liquid outlet hole 23 is communicated with the maximum liquid amount adjusting hole 14; when the outer cover 20 rotates 63 degrees, the maximum liquid amount adjusting hole 14 is closed, and at the moment, the medium liquid amount adjusting hole 14 is communicated with the liquid outlet hole 23; the outer cover 20 rotates 63 degrees again, then the minimum liquid quantity adjusting hole 14 is communicated with the liquid outlet hole 23, the limit position is reached, and the required liquid quantity can be correspondingly rotated according to different requirements.

By rotating the outer cover 20, the liquid outlet hole 23 of the outer cover 20 is communicated with the liquid amount adjusting hole 14 with different inner diameters on the inner cover 10, so that liquid is controlled to flow out of the liquid outlet cover 100 through the liquid amount adjusting hole 14 and the liquid outlet hole 23, the requirements of different customers on different liquid amounts are met, no extra liquid waste is generated, and the sealing gasket 13 at the end part of the inner cover 10 keeps good sealing performance between the inner cover 10 and the outer cover 20; a sealing ring 16 is arranged on one side of the end surface of the inner cover 10 facing the second end 12 of the inner cover, so that the integral air tightness is improved, and full sealing is realized; the guide cylinder 213 and the outflow nozzle 214 are arranged to facilitate the outflow of liquid; the end of the cap 20 has a recessed area 212, and the bottom of the recessed area 212 has a non-uniform thickness so that the liquid can flow back into the bottle.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims (10)

1. A rotary control liquid outlet cover is used for being matched with a bottle opening of a containing bottle and is characterized by comprising an inner cover and an outer cover which are mutually nested and rotationally matched, wherein an elastic sealing gasket is fixedly embedded at the end part of the inner cover and abuts against the end part of the outer cover through the sealing gasket; a plurality of liquid quantity adjusting holes corresponding to the positions are formed in the end part of the inner cover and the sealing gasket, a liquid outlet hole is formed in the end part of the outer cover, and the liquid outlet hole is communicated with the liquid quantity adjusting holes in the corresponding positions when the outer cover rotates relative to the inner cover; and axial anti-falling parts which are matched with each other are also arranged between the inner cover and the outer cover.

2. The rotary control liquid outlet cover according to claim 1, wherein the inner cover comprises a first cylindrical part, one axial end of the first cylindrical part is an open end and is used for being butted with the bottle mouth of the containing bottle, the end part of the inner cover is positioned at the other axial end of the first cylindrical part, and the inner wall of the first cylindrical part is provided with an axial anti-drop rib matched with the containing bottle.

3. The rotary control liquid outlet cover according to claim 1, wherein the end of the inner cover is provided with a caulking groove, the sealing gasket is made of elastomer material and fixed in the caulking groove, at least one part of the sealing gasket in the thickness direction is higher than the caulking groove and is abutted against the end of the outer cover through the higher part.

4. The rotary control liquid outlet cover according to claim 3, wherein a positioning protrusion is provided at the bottom of the caulking groove, and a positioning slot matching with the positioning protrusion is provided on the sealing gasket.

5. The rotary control liquid outlet cover according to claim 4, characterized in that the end of the outer cover is provided with a limit convex ring at the side facing the sealing gasket, and the part of the sealing gasket higher than the caulking groove is limited by the limit convex ring.

6. The rotary control liquid outlet cover according to claim 1, wherein the outer cover comprises a second cylindrical part sleeved outside the inner cover, one axial end of the second cylindrical part is used for accommodating the inner cover, the end part of the outer cover is located at the other axial end of the second cylindrical part, the end part of the outer cover is provided with a recessed area, and the bottom of the recessed area is attached to the sealing gasket.

7. The rotary control liquid outlet cover according to claim 6, wherein the end of the outer cover forms a circular guide cylinder at the periphery of the recessed area, and the guide cylinder and the sealing gasket are respectively arranged at two sides of the recessed area in the axial direction of the outer cover.

8. The rotary control dispensing cap according to claim 7, wherein a partial area of the guide shell has a relatively long axial dimension and acts as an outflow nozzle, the dispensing aperture is eccentrically disposed at an end of the outer cap, and the dispensing aperture is radially positioned adjacent to the outflow nozzle.

9. The rotary control liquid outlet cover according to claim 1, wherein a rotation limiting member is arranged between the inner cover and the outer cover, and the rotation limiting member comprises:

the clamping grooves are distributed on the outer wall of the inner cover at intervals along the circumferential direction of the inner cover;

the positioning rib is positioned on the inner wall of the outer cover and matched with the clamping groove;

the draw-in groove is many and corresponds a liquid measure gear respectively, go out liquid hole and correspond one of them liquid measure gear when certain liquid measure regulation hole intercommunication, under current liquid measure gear, a draw-in groove that corresponds is gone into to the location muscle card.

10. The rotary control liquid outlet cover according to claim 9, wherein the rotary limiting member further comprises:

the positioning rib is abutted to the radial boss when the outer cover rotates to the limit position relative to the inner cover.

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