CN211130036U

CN211130036U - End cap assembly and container using the same

Info

Publication number: CN211130036U
Application number: CN201921684355.1U
Authority: CN
Inventors: 张明威; 陈树仁
Original assignee: Jiangmen Kk Plastic Factory Ltd
Current assignee: Jiangmen Kk Plastic Factory Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-07-31
Anticipated expiration: 2029-10-09

Abstract

The utility model discloses an end cover component and discloses a container using the end cover component, the end cover component comprises an inner cover and an upper cover, a first cylinder and a first extension part are vertically arranged on the upper part of the inner cover and form a first annular area, the first cylinder is provided with a first channel, and the side surface of the first cylinder is provided with a first notch groove; a second cylinder and a second external extension part are vertically arranged at the lower part of the upper cover, a second annular area is formed, the second cylinder is provided with a second channel, the side surface of the second cylinder is provided with a second gap groove and a first sealing ring, and the upper part of the upper cover is provided with a discharge channel communicated with the second annular area; the first annular area and the second annular area are matched to form a third channel, the upper cover rotates relative to the inner cover into two states, the first state is that the first notch groove is communicated with the second notch groove, and the discharge channel is communicated with the first channel through the third channel; in the second state, the first notch groove and the second notch groove are staggered, and the discharge passage is separated from the first passage.

Description

End cap assembly and container using the same

Technical Field

The utility model relates to a cosmetics packaging container technical field, in particular to end cover subassembly and utilize container of this end cover subassembly.

Background

Most of the existing packaging containers for storing liquid cosmetics in the market are of extrusion structures, before the cosmetics are used, an end cover assembly of the packaging container needs to be opened firstly, then the packaging container is squeezed, and the cosmetics can flow out of an outlet of the container. However, the end cap assembly of the conventional packaging container is not easy to open, and a consumer easily feels pain when opening the end cap assembly. The ease with which the end cap assembly is opened further determines the ease with which the packaging container is opened.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an end cover assembly need not hard can open end cover assembly, and then open packaging container.

The utility model discloses still provide a container of utilizing above-mentioned end cover subassembly.

According to the utility model discloses an end cover assembly of first aspect embodiment includes: the inner cover is sleeved at the opening of the bottle, a first cylinder and an annular first extending part surrounding the first cylinder are vertically arranged at the upper part of the inner cover, a first annular area is formed between the outer side of the first cylinder and the inner side of the first extending part, a first channel communicated with a cavity of the container is arranged in the axial middle of the first cylinder, and a first notch groove communicated with the first channel and the first annular area is formed in the upper end of the side surface of the first cylinder;

the lower part of the upper cover is vertically provided with a second cylinder and an annular second external extension part surrounding the second cylinder, the outer side of the second cylinder and the inner side of the second external extension part form a second annular area, a second channel is arranged in the middle of the second cylinder in the axial direction, a second notch groove communicated with the second channel and the second annular area is formed in the lower end of the side surface of the second cylinder, and a discharge channel communicated with the second annular area is arranged at the upper part of the upper cover;

the first cylinder is inserted into the second channel, the first extension part is sleeved outside the second extension part, the first annular region and the second annular region are matched to form a third channel, the upper cover rotates relative to the inner cover into two states, the first state is that the first notch groove is communicated with the second notch groove, and the discharge channel is communicated with the first channel through the third channel; in the second state, the first notch groove and the second notch groove are staggered, and the discharge passage is separated from the first passage.

According to the utility model discloses end cover assembly has following beneficial effect at least: and rotating the upper cover to enable the gaps of the first gap groove and the second gap groove to be partially or completely overlapped, communicating the first gap groove and the second gap groove, further communicating the first channel and the third channel, extruding or inclining the container, enabling the solution in the container to enter the first channel, enter the third channel through the first gap groove and the second gap groove, and then flow out from the discharge channel. And the upper cover is rotated again, so that the gaps of the first gap groove and the second gap groove are staggered, the first channel and the third channel are isolated, namely the discharge channel is isolated from the first channel, and the solution cannot flow out of the discharge channel. Adopt the end cover subassembly among the above-mentioned technical scheme, easy operation need not hard can open or closed container, convenient to use.

According to the utility model discloses a some embodiments, the outside of first extension portion is provided with two first spacing stands, two the contained angle of first spacing stand is the right angle, on cover still to be provided with the encirclement the annular third extension portion of second extension portion, the inboard of third extension portion is provided with the spacing stand of second, two are arranged in to the spacing stand of second in the right angle region of first spacing stand, the spacing stand of second with first spacing stand side contact is in order to inject the rotation range of upper cover.

According to some embodiments of the present invention, the first outer retaining ring extends from the outer lower portion of the first outer extension portion, and the inner lower portion of the third outer extension portion is provided with a first inner retaining ring engaged with the first outer retaining ring.

According to the utility model discloses a some embodiments still include the enclosing cover, the enclosing cover suit is in the outside of inner cover lower part just surrounds the lower part in the third outside extension portion outside, the enclosing cover rotates with the drive the upper cover is relative the inner cover rotates.

According to the utility model discloses a some embodiments, be provided with drive division on the outer cover, the outside of third extension is provided with first drive post, the drive division drive first drive post is in order to drive the upper cover rotates.

According to the utility model discloses a some embodiments, the outside of inner cup lower part is provided with sectorial spacing groove, the head and the tail both ends of spacing groove all are provided with first spacing arch, the inboard of enclosing cover is provided with the spacing arch of second, the spacing bellied bottom of second is provided with the recess, first spacing protruding card is gone into the recess is in order to inject the rotation range of enclosing cover.

According to some embodiments of the utility model, the outside of inner cup lower part still is provided with the outer buckle of second, the inboard lower part of enclosing cover be provided with buckle in the second of the outer buckle joint of second.

According to some embodiments of the invention, the inner side of the inner cap lower part is provided with a thread for connecting a bottle.

According to some embodiments of the utility model, the inboard of inner cup lower part still is provided with the constant head tank complex reference column with the bottle, the reference column is vertical to be arranged between two sections detain the tooth.

A container according to an embodiment of the second aspect of the invention, comprising an end cap assembly according to any of the above.

According to the utility model discloses container has following beneficial effect at least: by adopting the container in the technical scheme, the opening or closing process of the container is simple, the operation is convenient, the container can be opened or closed without labor, and the use is convenient.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an end cap assembly in an embodiment of the present invention in a closed state;

fig. 2 is a schematic view of an end cap assembly in an open state according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic view of an angle of the inner lid according to an embodiment of the present invention;

fig. 5 is a schematic view of another angle of the inner lid according to the embodiment of the present invention;

fig. 6 is a front view of the inner lid in the embodiment of the present invention;

fig. 7 is a cross-sectional view of an inner lid in an embodiment of the present invention;

fig. 8 is a schematic structural view of an angle of the upper cover in the embodiment of the present invention;

fig. 9 is a schematic structural view of another angle of the upper cover in the embodiment of the present invention;

fig. 10 is a schematic structural view of another angle of the upper cover according to the embodiment of the present invention;

fig. 11 is a sectional view of the upper cover in the embodiment of the present invention;

FIG. 12 is a schematic view of an angle of the outer cover according to an embodiment of the present invention;

fig. 13 is a schematic view of another angle of the outer cover according to the embodiment of the present invention;

fig. 14 is a sectional view of the outer cover according to the embodiment of the present invention.

Reference numerals:

the inner cover 100, the first cylinder 101, the first channel 102, the first notch groove 103, the first outer extension 104, the first limit post 105, the first outer snap ring 106, the limit groove 107, the first limit protrusion 108, the snap tooth 109, the positioning post 110, the second outer snap ring 111, the third sealing ring 112, the first annular region 113, the first outer snap ring 105, the second outer snap ring 111, the second outer snap ring 103, the second outer snap ring, the third sealing ring 112, the second,

The upper cover 200, the second cylinder 201, the second channel 202, the second notch groove 203, the second extension part 204, the third extension part 205, the second limit upright post 206, the first driving post 207, the first inner retaining ring 208, the third notch groove 209, the discharge channel 210, the second annular area 211, the third channel 212, the first sealing ring 213, the second sealing ring 214, the third notch groove,

An outer cover 300, a driving part 301, a second limit bulge 302, a groove 303, a second inner snap ring 304, a sleeve 305, a mounting part 306,

A bottle 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If any description to first, second and third is only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The structure of an end cap assembly and a container using the same according to the present invention will be described in detail with reference to the preferred embodiments and the accompanying drawings.

The end cap assembly according to the first aspect of the present invention, as shown in fig. 1 and 3, includes an inner cap 100, an upper cap 200, and an outer cap 300, wherein the lower portion of the inner cap 100 is sleeved on the opening of the bottle 400 and is fixedly connected to the bottle 400, the lower portion of the upper cap 200 is inserted into the upper portion of the inner cap 100, and the outer cap 300 is sleeved on the outer side of the lower portion of the inner cap 100 and partially surrounds the upper cap 200. The outer cap 300 may drive the upper cap 200 to rotate relative to the inner cap 100 during rotation to open or close the end cap assembly, i.e., open or close the container.

In some embodiments of the present invention, as shown in fig. 4 and 7, a first cylinder 101 is vertically disposed on the upper portion of the inner lid 100, a first channel 102 communicating with the cavity of the bottle 400 is disposed at an axial middle portion of the first cylinder 101, and the solution in the bottle 400 flows out through the first channel 102.

In a further embodiment of the present invention, as shown in fig. 4, 6 and 7, the upper portion of the inner lid 100 is further provided with an annular first outward extending portion 104 surrounding the first cylinder 101, and the outer side of the first cylinder 101 and the inner side of the first outward extending portion 104 form a first annular region 113.

In a further embodiment of the present invention, as shown in fig. 4 and 7, the upper end of the side of the first cylinder 101 is opened with a first notched groove 103 communicating the first passage 102 and the first annular region 113, specifically, the first notched groove 103 runs through the top end of the first cylinder 101. The solution flowing into the first channel 102 enters the first annular region 113 through the first cutaway groove 103.

In a further embodiment of the present invention, as shown in fig. 4 and 6, two first limiting pillars 105 are disposed on the outer side of the first extending portion 104, and the two first limiting pillars 105 disposed on the outer side of the first extending portion 104 are used for limiting the rotation angle of the upper cover 200 relative to the inner cover 100. Specifically, the included angle between the two first limiting columns 105 is a right angle, that is, the rotation angle of the upper cover 200 is limited to 90 °.

In a further embodiment of the present invention, as shown in fig. 4, 6 and 7, the lower portion of the outer side of the first outer extension portion 104 is further provided with a first outer retaining ring 106 for being clamped with the upper cover 200, and the lower end of the first limiting upright 105 extends to the upper end face of the first outer retaining ring 106, which can function as a reinforcing rib to some extent.

In a further embodiment of the present invention, as shown in fig. 4 and 6, the upper end of the outer side of the lower portion of the inner cap 100 is formed with a sectorial shape limiting groove 107 for limiting the rotation angle of the outer cap 300, and specifically, the cross-section of the limiting groove 107 is formed in a shape of "L", and the sectorial angle of the limiting groove 107 is 270 °, that is, the rotation angle of the outer cap 300 is limited to 270 °.

In a further embodiment of the present invention, as shown in fig. 4 and fig. 6, the first limiting protrusions 108 are disposed at the end and the end of the lower end surface of the limiting groove 107, and the limiting groove 107 further defines the rotation angle of the outer cover 300 through two first limiting protrusions 108. In this embodiment, as shown in fig. 4, the end of the limiting groove 107 away from the first notch groove 103 is a head end, and the end close to the first notch groove 103 is a tail end.

In a further embodiment of the present invention, as shown in fig. 4, 6 and 7, a second outer locking ring 111 is further provided on the outer side of the lower portion of the inner lid 100 for being engaged with the outer lid 300.

In a further embodiment of the present invention, as shown in fig. 7, the top of the inner side of the lower portion of the inner lid 100 extends downward to form a third sealing ring 112, an annular region is formed between the third sealing ring 112 and the inner side of the lower portion of the inner lid 100, when the inner lid 100 is connected to the bottle 400, the third sealing ring 112 is inserted into the inner side of the opening of the bottle 400, and the top end of the opening of the bottle 400 abuts against the top of the annular region to limit the installation height of the inner lid 100.

In a further embodiment of the present invention, as shown in fig. 5 and 7, a plurality of segments of fastening teeth 109 are circumferentially and uniformly arranged on the inner side of the lower portion of the inner lid 100 for engaging with the bottle 400. In this embodiment, the number of the fastening teeth 109 is six, which can be set by the user according to the actual requirement, and only the inner cap 100 and the bottle 400 need to be stably connected.

In a further embodiment of the present invention, as shown in fig. 5, a positioning column 110 is further disposed on the inner side of the lower portion of the inner lid 100, the positioning column 110 is vertically disposed between two sections of the fastening teeth 109, a positioning groove is disposed on the bottle and is matched with the positioning column 110, and the positioning column 110 is clamped into the positioning groove to prevent the inner lid 100 from moving relative to the bottle 400.

In some embodiments of the present invention, as shown in fig. 8, 9 and 11, the second cylinder 201 is vertically arranged at the lower part of the upper cover 200, the second channel 202 is provided at the axial middle part of the second cylinder 201, and the diameter of the second channel 202 matches with the outer diameter of the first cylinder 101. When the inner cap 100 is coupled to the upper cap 200, the first cylinder 101 is inserted into the second channel 202 and is tightly sealed against the inside of the second channel 202, thereby preventing the solution from flowing out of the gap therebetween.

In a further embodiment of the present invention, as shown in fig. 8, 9 and 11, the lower portion of the upper cover 200 is further provided with an annular second extending portion 204 surrounding the second cylinder 201, and a second annular region 211 is formed between the outer side of the second cylinder 201 and the inner side of the second extending portion 204. Specifically, the outer diameter of the second extension portion 204 matches the inner diameter of the first extension portion 104, and when the lower portion of the upper cap 200 is inserted into the upper portion of the inner cap 100, the second extension portion 204 is inserted into the first annular region 113 between the first cylinder 101 and the first extension portion 104 and abuts against the bottom of the first annular region 113 to define the mounting position of the upper cap 200. The outer side of the second extension 204 is closely attached to the inner side of the first extension 104, and is closely attached to and sealed with the first extension 104. As shown in fig. 1, the first annular region 113 and the second annular region 211 are cross-fitted to form a third channel 212 through which the solution flows. The outer side of the second extension portion 204 is provided with a second sealing ring 214, which further realizes the rotary sealing between the outer side of the second extension portion 204 and the inner side of the first extension portion 104, and prevents the solution from flowing out from the gap between the two.

In a further embodiment of the present invention, as shown in fig. 8, 9 and 11, a second notch groove 203 is formed at the lower end of the side surface of the second cylinder 201. Specifically, the second notch groove 203 penetrates the bottom end of the second cylinder 201. When the lower part of the upper cover 200 is inserted into the upper part of the inner cover 100, the second cylinder 201 is sleeved outside the first cylinder 101, and the second channel 202 is communicated with the first channel 102. When the upper cover 200 is rotated with respect to the inner cover 100 and the positions of the first and second

cutaway grooves

103 and 203 are partially or entirely overlapped, the first and second

cutaway grooves

103 and 203 are communicated, and the solution introduced into the first passage 102 flows out from the first and second

cutaway grooves

103 and 203 into the second annular region 211. When the notch positions of the first notch groove 103 and the second notch groove 203 are shifted, the first channel 102 and the second channel 202 are sealed, and the solution flowing into the first channel 102 does not flow out.

In a further embodiment of the present invention, as shown in fig. 8 and 9, the inner side of the second cylinder 201 is provided with a first sealing ring 213, the first sealing ring 213 is located above the second notch groove 203, when the lower portion of the upper cover 200 is inserted into the upper portion of the inner cover 100, the sealing between the second cylinder 201 and the first cylinder 101 is further realized.

In a further embodiment of the present invention, as shown in fig. 8 to 11, the lower portion of the upper cover 200 is further provided with a ring-shaped third extending portion 205 surrounding the second extending portion 204, and the inner side of the third extending portion 205 is provided with a second limiting upright 206. When the lower portion of the upper cover 200 is coupled to the upper portion of the inner cover 100, the third extension 205 is outside the first extension 104. Specifically, the second position-limiting columns 206 are disposed in the right-angled areas of the two first position-limiting columns 105, and when the upper cover 200 rotates relative to the inner cover 100, the side surfaces of the second position-limiting columns 206 contact the side surfaces of the first position-limiting columns 105 to limit the rotation range of the upper cover 200.

In a further embodiment of the present invention, as shown in fig. 8, 9 and 10, the outer side of the third outer extension portion 205 is provided with a first driving column 207, and the outer cover 300 drives the upper cover 200 to rotate by driving the first driving column 207.

In a further embodiment of the present invention, as shown in fig. 8, 9 and 10, a first inner snap ring 208 is provided at a lower portion of an inner side of the third outer extension portion 205, and the first inner snap ring 208 is engaged with the first outer snap ring 106 to snap the inner lid 100 to the upper lid 200.

In a further embodiment of the present invention, as shown in fig. 8, 9 and 10, two third notch grooves 209 are disposed on the lower circumferential direction of the side of the third outer extension portion 205. Specifically, the third notch groove 209 penetrates the bottom end of the third outward extension portion 205 and divides the first inner snap ring 208 into two sections, the second limit post 206 and the first driving post 207 are disposed between the two third notch grooves 209, and the third notch groove 209 is provided for facilitating the mounting of the upper cover 200 to the inner cover 100.

In a further embodiment of the present invention, as shown in fig. 8 to 11, the upper portion of the upper cap 200 is provided with a discharge channel 210, the discharge channel 210 extends to the inner side of the second extension portion 204 and communicates with the second annular region 211, when the first and

second notch grooves

103 and 203 communicate, the solution in the bottle 400 flows out from the first and

second notch grooves

103 and 203, and after the solution enters the second annular region 211, the solution flows out from the discharge channel 210.

In some embodiments of the present invention, referring to fig. 12 to 14, the inner side of the outer cap 300 extends upward to form an annular sleeve 305, the inner diameter of the sleeve 305 matches the outer diameter of the lower portion of the inner cap 100, the lower portion of the inner side of the sleeve 305 is provided with a second inner snap ring 304 matching the second outer snap ring 111, the sleeve 305 is sleeved on the outer side of the lower portion of the inner cap 100, and the outer cap 300 and the inner cap 100 are engaged with each other through the second inner snap ring 304 and the second outer snap ring 111.

In a further embodiment of the present invention, as shown in fig. 13 and 14, the inner side of the sleeve 305 is provided with a second limiting protrusion 302, the second limiting protrusion 302 is located above the second inner retaining ring 304, the bottom of the second limiting protrusion 302 is provided with a groove 303, the groove 303 is matched with the top end of the first limiting protrusion 108, the outer cap 300 rotates relative to the inner cap 100, and the groove 303 is clamped into the first limiting protrusion 108 to limit the rotation range of the outer cap 300.

In a further embodiment of the present invention, as shown in fig. 12 and 14, the top end of the sleeve 305 extends upwards to form a semi-annular mounting portion 306 and a semi-annular driving portion 301, and the openings of the mounting portion 306 and the driving portion 301 are arranged oppositely and transition in a step form. Specifically, the inner diameter of the mounting portion 306 matches the outer diameter of the third extension 205, the mounting portion 306 semi-surrounding the third extension 205; the sum of the inner diameter of the third extension 205 and the thickness of the first drive stud 207 matches the inner diameter of the drive portion 301, and the drive portion 301 semi-surrounds the side of the third extension 205 where the first drive stud 207 is located. When the outer cover 300 is rotated to 180 °, that is, when the side surface of the step at one end of the driving part 301 contacts with the side surface of the first driving post 207, the driving part 301 drives the first driving post 207 to rotate the upper cover 200.

The working process is as follows:

initially, the end cap assembly is in a closed state as shown in fig. 1, at this time, the notches of the first notch groove 103 and the second notch groove 203 are staggered, the first channel 102 and the third channel 212 are isolated, that is, the discharge channel 210 is isolated from the first channel 102, the solution cannot flow out from the discharge channel 210, and the outer cap 300 simultaneously blocks the discharge channel 210. When the outer cover 300 is rotated, when the side surface of the step at one end of the driving portion 301 contacts with the side surface of the first driving post 207, the driving portion 301 drives the first driving post 207 to drive the upper cover 200 to rotate, the notches of the first notch groove 103 and the second notch groove 203 are gradually overlapped, and the first channel 102 and the third channel 212 are gradually communicated. When the side of the second stopper post 206 contacts the side of the first stopper post 105 of the inner lid 100, the rotation of the upper lid 200 is stopped. As shown in fig. 2 and 3, at this time, the notches of the first notch groove 103 and the second notch groove 203 are overlapped to the maximum extent, and the bottle 400 is pressed or tilted, so that the solution in the bottle 400 enters the first channel 102, and enters the third channel 212 through the first notch groove 103 and the second notch groove 203, and then flows out from the discharge channel 210. The direction shown by the dotted line in fig. 2 is the direction in which the solution flows out. After use, the outer cover 300 is rotated in the opposite direction, when the side surface of the step at the other end of the driving portion 301 contacts with the side surface of the first driving post 207, the driving portion 301 drives the first driving post 207 to drive the upper cover 200 to rotate in the opposite direction, the notches of the first notch groove 103 and the second notch groove 203 are gradually staggered, and the first channel 102 and the third channel 212 are gradually blocked until the closed state shown in fig. 1 is reached. Adopt the end cover subassembly among the above-mentioned technical scheme, easy operation need not hard can open or closed container, convenient to use.

The container of the second aspect of the present invention, including the end cap assembly and the bottle 400 of the above embodiments, the outer side of the opening of the bottle 400 is provided with an annular fastening groove matching with the fastening tooth 109, and a positioning groove positioned in cooperation with the positioning column 110. When the bottle 400 in the technical scheme is used, the outer cover 300 is only required to be rotated, the upper cover 200 is driven by the outer cover 300 to rotate relative to the inner cover 100 (the bottle 400), and the solution in the bottle 400 can flow out of the discharge channel 210 by communicating the first channel 102, the second channel 202 and the discharge channel 210. The opening or closing process of the container is simple, the operation is convenient, the container can be opened or closed without labor, and the use is convenient.

The present embodiment has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. An end cap assembly, comprising:

the inner cover is sleeved at the opening of the bottle, a first cylinder and an annular first extending part surrounding the first cylinder are vertically arranged at the upper part of the inner cover, a first annular area is formed between the outer side of the first cylinder and the inner side of the first extending part, a first channel communicated with a cavity of the container is arranged in the axial middle of the first cylinder, and a first notch groove communicated with the first channel and the first annular area is formed in the upper end of the side surface of the first cylinder;

2. The end cover assembly of claim 1, wherein the outer side of the first outer extending portion is provided with two first limiting columns, the included angle of the two first limiting columns is a right angle, the upper cover is further provided with an annular third outer extending portion surrounding the second outer extending portion, the inner side of the third outer extending portion is provided with a second limiting column, the second limiting column is arranged in the right angle area of the two first limiting columns, and the second limiting column is in side contact with the first limiting columns to limit the rotation range of the upper cover.

3. The end cap assembly of claim 2, wherein a first outer snap ring extends from a lower outer portion of the first outer extension, and a first inner snap ring is disposed on a lower inner portion of the third outer extension for snap engagement with the first outer snap ring.

4. The end cap assembly of claim 2, further comprising an outer cap that fits over a lower portion of the inner cap and surrounds a lower portion of the outer portion of the third extension, the outer cap rotating to drive the upper cap to rotate relative to the inner cap.

5. The end cap assembly of claim 4, wherein the outer cap has a driving portion disposed thereon, and a first driving post is disposed on an outer side of the third outer extension portion, wherein the driving portion drives the first driving post to rotate the upper cap.

6. The end cap assembly according to claim 4, wherein the outer side of the lower portion of the inner cap is provided with a fan-shaped limiting groove, the head and tail ends of the limiting groove are provided with first limiting protrusions, the inner side of the outer cap is provided with second limiting protrusions, the bottom of the second limiting protrusions is provided with a groove, and the first limiting protrusions are clamped into the groove to limit the rotation range of the outer cap.

7. The end cap assembly of claim 4, wherein the outer side of the lower portion of the inner cap is further provided with a second outer snap ring, and the lower portion of the inner side of the outer cap is provided with a second inner snap ring that is snapped into engagement with the second outer snap ring.

8. The end cap assembly of claim 1, wherein the inner cap lower portion is provided with a plurality of sections of threading teeth on an inner side thereof for engaging a bottle.

9. The end cap assembly of claim 8, wherein the inner cap is further provided with a positioning post on the inside of the lower portion thereof for engaging with a positioning groove of the bottle, the positioning post being vertically disposed between the two sections of the threading teeth.

10. A container comprising an end cap assembly according to any one of claims 1 to 9.