CN111924313A - A lid and packaging container - Google Patents

Abstract

The invention discloses a cover and a packaging container. The cover comprises a lower cover, an upper cover, a pressing part and a hollow sliding core; the lower cover comprises a casing and a accommodating part, and the accommodating part is arranged on the casing and accommodates an elastic part; The upper cover is buckled on the lower cover and is rotatably connected with the casing. The upper cover is provided with a first engaging portion; the pressing portion is arranged on the casing and is provided with a second engaging portion, and the second engaging portion can An engaging part engages or separates, so that the upper cover and the lower cover can be fastened or rotated relative to each other; an abutting part is formed on the outer wall of the sliding core, and the sliding core is inserted into the elastic part, so that the abutting part is formed on the outer wall of the sliding core. contact with the elastic piece. When the upper cover and the lower cover are fastened together, the upper cover is pressed against the top of the sliding core, so that the sliding core can compress the elastic member along the axial direction of the casing; when the upper cover and the lower cover can rotate relative to each other, the sliding core It can move along the axial direction of the casing under the action of elastic force, so that the hollow inner cavity of the sliding core is communicated with the liquid inlet. The cover can ensure the cleanliness of the mouth and has a better use effect.

Description

A lid and packaging container

technical field

The invention relates to the field of packaging, in particular to a lid and a packaging container.

Background technique

With the increasing consumption of food, beverages, medicines, and daily chemical products, many products need to be packed in containers such as bottles and cans. The lid is an important part of the packaging, and the lid has the function of keeping the contents of the product sealed.

With the continuous innovation of cosmetic products, medicines and other packaging on the market, users have higher and higher requirements for packaging containers. When taking out the contents of the currently used packaging containers, the lid needs to be opened, and then a certain amount of the contents is extruded from the container body, and then the extruded contents are retained in the palm of the hand by hand. However, when the contents are taken out of the packaging container, the contents will inevitably remain on the edge of the opening of the lid, thereby affecting the cleanliness of the lid, and the overall use effect is not good.

SUMMARY OF THE INVENTION

The invention provides a cover and a packaging container to improve the use effect of the packaging container.

In order to realize above-mentioned technical purpose, the present invention adopts following technical scheme:

A first aspect of the technical solution of the present invention provides a cover, comprising:

a lower cover, the lower cover includes a casing and a accommodating part, the accommodating part is arranged on the casing along the axial direction of the casing, the top of the accommodating part is open and the side wall of the accommodating part is open At least one liquid inlet is opened, and an elastic member is arranged in the accommodating part;

an upper cover, the upper cover is buckled on the lower cover and is rotatably connected with the casing, and the upper cover is provided with a first engaging portion;

a pressing part, the pressing part is arranged on the casing, and the pressing part is provided with a second engaging part, and the second engaging part can be engaged with the first engaging part, so as to the upper cover and the lower cover are fastened together; the pressing part can move along the radial direction of the casing to separate the second engaging part from the first engaging part, and enable the upper cover and the lower cover to rotate relative to each other;

A hollow sliding core, an abutting portion is formed on the outer wall of the sliding core, and the sliding core is penetrated in the elastic member, so that the abutting portion abuts the elastic member; the upper cover In the state of being engaged with the lower cover, the upper cover is pressed against the top of the sliding core, so that the sliding core can compress the elastic member along the axial direction of the casing; the upper cover In a state that can rotate relative to the lower cover, the sliding core can move along the axial direction of the housing under the elastic force of the elastic member, so that the hollow inner cavity of the sliding core and the accommodating portion are connected to each other. connected to the liquid inlet.

Preferably, the casing includes an outer casing and an inner casing, the axis of the outer casing coincides with the axis of the inner casing; the outer casing is rotatably connected to the upper cover, and the accommodating The inner casing is arranged on the inner casing along the axial direction of the inner casing, and the inner casing is used for connecting with the container body.

Preferably, a limiting portion is formed on the inner wall of the top of the accommodating portion, and when the upper cover and the lower cover can rotate relative to each other, the sliding core can move along the inner wall under the elastic force of the elastic member. The axial direction of the housing is moved by a set distance so that the abutting portion abuts the limiting portion.

Preferably, the bottom of the accommodating portion is provided with a sealing portion, and when the upper cover and the lower cover are fastened together, the bottom opening of the sliding core is sleeved on the sealing portion, and is connected with the sealing portion. The sealing part has an interference fit.

Preferably, the diameter of the accommodating portion gradually increases from the direction far from the upper cover end to the direction near the upper cover end, so that the outer wall of the accommodating portion can be in interference fit with the inner wall of the container body.

Preferably, the pressing part includes a pressing block and two elastic arms, the top of the pressing block is provided with the second engaging part, and the two elastic arms are respectively arranged on both sides of the pressing block The end of each of the elastic arms away from the pressing block is provided with a raised portion, a slot is formed on the inner wall of the outer casing, and the raised portion can be engaged with the slot, so that the the pressing part is connected with the outer casing;

The bending direction of the elastic arm is toward the center of the outer casing, so that the elastic arm can drive the pressing block to elastically move along the radial direction of the outer casing.

Preferably, an annular groove is further opened on the outer wall of the sliding core, a sealing ring is arranged in the annular groove, and the sealing ring is located between the sliding core and the inner wall of the accommodating part;

Or, an annular sealing portion is formed on the inner wall of the accommodating portion, the sliding core is penetrated in the accommodating portion, and the outer wall of the sliding core is in an interference fit with the annular sealing portion.

Preferably, an elastic pressure head is provided on the upper cover at a position corresponding to the sliding core, and when the upper cover and the lower cover are engaged with each other, the elastic pressure head presses the cover on the top of the sliding core, so that the sliding core can compress the elastic member in the axial direction of the housing.

A second aspect of the technical solution of the present invention provides a packaging container, comprising a container body and the cover, the casing is connected to the container body, and the accommodating portion is correspondingly penetrated in the container body. in the mouth of the container body, and block the mouth of the container body; when the upper cover and the lower cover are fastened together, the contents in the container body are sealed inside the container body, and the upper cover and the When the lower cover can rotate relatively, the content in the container body can be extruded from the liquid inlet through the hollow cavity of the sliding core.

Preferably, the outer wall of the mouth of the container body has a limit groove, and the inner wall of the shell has a limit protrusion. When the shell is connected to the container body, all the The limiting protrusion is engaged with the limiting groove to limit the relative position of the casing and the container body.

Compared with the prior art, the present invention has the following beneficial effects:

In the cover provided by the technical solution of the present invention, when in use, the lower cover of the cover can be installed on the container body, and the mouth of the container body can be sealed by the accommodating part. When not in use, the upper cover and the lower cover are in a buckled state. , at this time, use the upper cover to press the top of the sliding core to seal the hollow sliding core to prevent the contents of the container body from flowing out; Press the pressing part in the direction, so that the second engaging part on the pressing part is separated from the first engaging part on the upper cover. At this time, the upper cover and the lower cover are in a state of relative rotation, that is, the upper cover is no longer pressed. Tighten the sliding core, the sliding core can move along the axial direction of the casing under the elastic force of the elastic member, so as to protrude a certain distance, so that the hollow inner cavity of the sliding core is communicated with the liquid inlet on the side wall of the accommodating part, At this time, squeeze the container body, the content is extruded from the liquid inlet through the hollow inner cavity of the sliding core, the user can take an appropriate amount of the content, and when the content is finished, release the squeeze on the container body , the container body is restored to its original state, and the content is sucked back into the container body accordingly, so as to avoid the waste of the content. When using the cover to take the contents of the container body, since the sliding core will protrude for a certain distance, the content extruded from the container body will not easily drip on the edge of the cover during use, thus ensuring the safety of the cover. The cleanability improves the use effect of the cover, and the user experience is better.

Description of drawings

1 is a schematic structural diagram of a cover in a buckled state according to an embodiment of the present invention;

2 is a schematic structural diagram of an open state of a cover provided by an embodiment of the present invention;

3 is a schematic cross-sectional structure diagram of a lid in an open state provided by an embodiment of the present invention;

4 is an exploded view of a cover provided by an embodiment of the present invention;

Fig. 5 is the sectional structure schematic diagram of the vertical section of the lower cover;

Fig. 6 is the sectional structure schematic diagram of the cross section of the lower cover;

Fig. 7 is the sectional structure schematic diagram of the upper cover;

8 is a schematic diagram of a cross-sectional joint of a sliding core;

9 is a partial cross-sectional structural schematic diagram of another cover provided by an embodiment of the present invention;

Figure 10 is a schematic structural diagram of a pressing portion;

11 is a schematic structural diagram of a packaging container provided by an embodiment of the present invention;

12 is a schematic cross-sectional structure diagram of a packaging container provided by an embodiment of the present invention;

Fig. 13 is a partial enlarged structural schematic diagram of the container body.

In the drawings, each reference sign denotes:

1. Lower cover; 11. Housing; 12. Receiving part; 111. Outer housing; 112. Inner housing; 121. Liquid inlet; 122. Limiting part; 123. Sealing part; Limit protrusion;

2. Upper cover; 21. First engaging part; 22. Elastic pressure head;

3. Pressing part; 31. Second engaging part; 32. Pressing block; 33. Elastic arm; 331. Protruding part;

4, sliding core; 41, abutting part; 42, hollow inner cavity; 43, annular groove;

5. Elastic part; 6. Pin shaft hole; 7. Pin shaft; 8. Sealing ring; 100, container body; 101, limit groove; 200, cover.

Detailed ways

In order to make the objectives, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1:

Please refer to FIG. 1 and FIG. 2 , a cover provided for the technical solution of the present invention includes: a lower cover 1 , an upper cover 2 , a pressing portion 3 and a hollow sliding core 4 .

Continuing to refer to FIG. 3 and FIG. 4 , the lower cover 1 includes a casing 11 and a accommodating portion 12 , and the accommodating portion 12 is disposed on the casing 11 along the axial direction of the casing 11 . The top of the accommodating portion 12 is open, and at least one liquid inlet 121 is opened on the side wall of the accommodating portion 12 . The accommodating portion 12 accommodates the elastic member 5 ; the upper cover 2 is buckled on the lower cover 1 . , and is rotatably connected to the casing 11. Referring to FIG. 7, the upper cover 2 is provided with a first engaging portion 21; the pressing portion 3 is arranged on the casing 11, and all The pressing portion 3 is provided with a second engaging portion 31 , and the second engaging portion 31 can be engaged with the first engaging portion 21 , so that the upper cover 2 and the lower cover 1 are connected to each other. Buckle; the pressing portion 3 can move along the radial direction of the housing 11 to separate the second engaging portion 31 from the first engaging portion 21 and make the upper cover 2 It can rotate relative to the lower cover 1; an abutting portion 41 is formed on the outer wall of the sliding core 4, and the sliding core 4 is inserted into the elastic member 5, so that the abutting portion 41 and the When the upper cover 2 and the lower cover 1 are fastened together, the upper cover 2 is pressed against the top of the sliding core 4, so that the sliding core 4 can move along the sliding core 4. The casing 11 compresses the elastic member 5 in the axial direction; when the upper cover 2 and the lower cover 1 can rotate relative to each other, the sliding core 4 can move along the casing under the elastic force of the elastic member 5 The body 11 moves in the axial direction, so that the hollow inner cavity 42 of the sliding core 4 communicates with the liquid inlet 121 of the accommodating part.

In the above-mentioned embodiment, during specific use, the lower cover 1 of the cover can be installed on the container body, and the container body 12 can be used to seal the mouth of the container body (refer to FIG. 9 and FIG. 10 ). When not in use, The upper cover 2 and the lower cover 1 are in a buckled state. At this time, the upper cover 2 is used to press the top of the sliding core 4 to seal the hollow sliding core 4 to prevent the contents of the container body from flowing out; When the container body contains the contents, the pressing part 3 can be pressed along the radial direction of the casing 11, so that the second engaging part 31 on the pressing part 3 is separated from the first engaging part 21 on the upper cover 2, At this time, the upper cover 2 and the lower cover 1 are in a relatively rotatable state, that is, the upper cover 2 no longer presses the sliding core 4, and the sliding core 4 moves along the axial direction of the casing 11 under the elastic force of the elastic member 5. Thereby, it protrudes for a certain distance, so that the hollow inner cavity 42 of the sliding core 4 is communicated with the liquid inlet 121 on the side wall of the accommodating part 12. At this time, the container body is squeezed, and the contents pass through the sliding core 4 from the liquid inlet 121 The hollow inner cavity 42 of the container is squeezed out, and the user can take an appropriate amount of content (for example: facial cleanser). The contents are sucked back into the container body to avoid waste of contents. When using the cover to take the contents of the container body, since the sliding core 4 will protrude for a certain distance, the content extruded from the container body will not easily drip on the edge of the cover during use, thus ensuring the cover The cleanliness of the cover improves the use effect of the cover, and the user experience is better.

Referring to FIG. 5 , in the above embodiment, preferably, the casing 11 includes an outer casing 111 and an inner casing 112 , and the axis of the outer casing 111 coincides with the axis of the inner casing 112 ; the The outer casing 111 is rotatably connected to the upper cover 2 , the accommodating portion 12 is disposed on the inner casing 112 along the axial direction of the inner casing 112 , and the inner casing 112 is used for connecting with the container Body connection. Specifically, in this embodiment, the outer casing 111 and the inner casing 112 are integrally formed, and the casing 11 can be formed by injection molding. The outer casing 111 and the upper cover 2 are both provided with pin shaft holes 6 , the outer casing 111 and the upper cover 2 are hingedly fixed by passing the pin shaft 7 through the pin shaft hole 6 of the outer casing 111 and the upper cover 2 . In this way, the firmness of the connection between the outer casing 111 and the upper cover 2 can be improved, and the sealing effect will not be affected by deformation and displacement due to being pushed by the elastic member 5 for a long time. At the same time, the inner shell 112 is used to connect with the container body, and the specific connection method is not limited. For example, in this embodiment, the inner shell 112 can be threaded with the container body by providing an inner thread on the inner shell 112. connect. In other embodiments, a buckle can also be provided on the inner casing 112 to be connected to the container body by means of snapping. Therefore, the outer casing 111 can protect the inner casing 112 to avoid damage to the inner casing 112. Even if the outer casing 111 is damaged, as long as the upper cover 2 and the lower cover 1 can be connected Fixing will still not delay the normal use of the cover, and will not affect the sealing of the cover.

Continuing to refer to FIG. 5 , in the above-mentioned embodiment, preferably, a limiting portion 122 is formed on the inner wall of the top of the receiving portion 12 . When the upper cover 2 and the lower cover 1 can rotate relative to each other, the sliding The core 4 can move a set distance along the axial direction of the inner casing 112 under the elastic force of the elastic member 5 , so that the abutting portion 41 abuts the limiting portion 122 . Specifically, in this embodiment, the diameter of the top opening of the accommodating portion 12 is slightly smaller than the diameter of the abutting portion 41 of the sliding core 4. When assembling the sliding core 4, the sliding core 4 needs to be pressed into the accommodating core 4 by external force. 3 , when the upper cover 2 is opened, the upper cover 2 will no longer exert a force on the sliding core 4. At this time, the sliding core 4 will move along the The inner casing 112 moves in the axial direction, and when the abutting portion 41 of the sliding core 4 abuts against the limiting portion 122 of the accommodating portion 12, the sliding core 4 does not move any more, and the sliding core 4 moves from the upper cover 2 to the limiter 122 of the accommodating portion 12. The position where the lower cover 1 is fastened is moved to the position where the sliding core 4 is located in FIG. 3 , and the displacement of the sliding core 4 is the set distance. Therefore, the position of the sliding core 4 can be limited by the limiting portion 122 to prevent the sliding core 4 from being detached from the accommodating portion 12 of the lower cover 1 .

Continuing to refer to FIG. 5 , in the above embodiment, preferably, the bottom of the receiving portion 12 is provided with a sealing portion 123 , and the sliding core 4 is in a state where the upper cover 2 and the lower cover 1 are fastened together. The bottom opening is sleeved on the sealing portion 123 and is in an interference fit with the sealing portion 123 . Specifically, when it is not necessary to take the contents of the container body, the upper cover 2 and the lower cover 1 are in a buckled state, and at this time, the upper cover 2 is pressed against the top of the sliding core 4, so that the At the same time, since the bottom opening of the sliding core 4 is in an interference fit with the sealing part 123 at the bottom of the accommodating part 12, the sealing part 123 can be used to seal the bottom opening of the sliding core 4, so as to further improve the sealing performance of the cover , to ensure that the contents in the container body will not flow out to the outside through the hollow inner cavity of the sliding core 4 .

5, in the above embodiment, preferably, the diameter of the accommodating portion 12 gradually increases from the direction far from the upper cover end to the direction near the upper cover end, so that the outer wall of the accommodating portion 12 is It is capable of interference fit with the inner wall of the container body. Specifically, in this embodiment, the inner shell 112 and the container body are threadedly connected as an example for explanation. Since the diameter of the end of the accommodating portion 12 away from the upper cover 2 is small, when the inner shell 112 is connected with the container body , it is convenient for the accommodating part 12 to be inserted into the opening of the container body; at the same time, as the inner shell 112 and the container body are gradually tightened, the end of the accommodating part 12 close to the upper cover 2 will gradually approach the accommodating body In order to ensure the sealing between the opening of the container body 12 and the opening of the container body, it is necessary to make the diameter of the container body 12 larger, so as to interfere with the opening of the container body, so as to prevent the contents of the container body from leaking from the opening of the container body. Flow out between the inner wall of the container body and the outer wall of the accommodating portion 12 .

Referring to FIG. 8 , in the above embodiment, preferably, an annular groove 43 is further opened on the outer wall of the sliding core 4 . Referring to FIG. 3 , the annular groove 43 is provided with a sealing ring 8 , The sealing ring 8 is located between the sliding core 4 and the inner wall of the accommodating portion 12 . Therefore, the gap between the sliding core 4 and the accommodating part 12 can be sealed by the sealing ring 8, so as to prevent the contents in the container body from flowing out from the gap between the sliding core 4 and the accommodating part 12, so as to further improve the The tightness of the lid.

In the above embodiment, preferably, the size of the liquid outlet of the sliding core 4 can be set to different diameters according to the requirements of the liquid output, so as to meet the usage requirements of different users.

Referring to FIG. 9 , in the above embodiment, preferably, an annular sealing portion 124 is formed on the inner wall of the accommodating portion 12 , the sliding core 4 is inserted through the accommodating portion 12 , and the sliding core The outer wall of 4 is in an interference fit with the annular sealing portion 124 . In this embodiment, the annular sealing portion 124 is arranged on the lower cover, so as to avoid the situation where the outer wall of the sliding core 4 is slotted and then a sealing ring is provided. inside, the outer wall of the sliding core 4 and the annular sealing part 124 are in interference fit, so as to seal the gap between the sliding core 4 and the accommodating part 12, so as to improve the sealing performance of the cover. It should be noted that the sliding core 4 and the inner wall of the accommodating part 12 need a moderate interference fit (for example, the unilateral interference is within 0.03mm), so as to ensure that the cover is sufficiently sealed, the sliding core 4 can be compatible with the accommodating part. 12 relative sliding. Meanwhile, in this embodiment, the annular sealing portion 124 can be integrally formed with the lower cover 1 , thereby simplifying the assembling process of the cover and improving the production efficiency of the cover.

Referring to FIG. 10 , in the above embodiment, preferably, the pressing portion 3 includes a pressing block 32 and two elastic arms 33 , the top of the pressing block 32 is provided with the second engaging portion 31 , so The two elastic arms 33 are respectively disposed on both sides of the pressing block 32 ; the end of each elastic arm 33 away from the pressing block 32 has a raised portion 331 , as shown in FIG. 6 , the outer casing A card slot 1111 is formed on the inner wall of the 111, and the protruding portion 331 can be engaged with the card slot 1111, so that the pressing portion 3 is connected with the outer casing 111; at the same time, the elastic arm 33 The bending direction of the outer casing 111 is directed toward the center of the outer casing 111 , so that the elastic arm 33 can drive the pressing block 32 to elastically move along the radial direction of the outer casing 111 . Specifically, after the pressing part 3 is installed on the outer casing 111 , since the elastic arm 33 can elastically move in the radial direction of the outer casing 111 , when the pressing block 32 is subjected to an external force , the pressing block 32 can move toward the center of the outer casing 111 , so that the second engaging portion 31 is separated from the first engaging portion 21 , when the external force is removed, the pressing block 32 will The elastic arm 33 returns to the initial position under the action of the elastic force. At this time, the first engaging portion 21 on the upper cover 2 can be engaged with the second engaging portion 31 by snapping the upper cover 2 to restrict the The relative position of the upper cover 2 and the lower cover 1. Therefore, the ability of the elastic arm 33 to elastically return the pressing portion 3 is used to improve the convenience of using the pressing portion 3 .

Referring to FIG. 7 , in the above-mentioned embodiment, preferably, an elastic pressure head 22 is provided on the upper cover 2 at a position corresponding to the sliding core 4 , and the upper cover 2 and the lower cover 1 are provided with an elastic pressure head 22 . In a locked state, the elastic pressing head 22 is pressed against the top of the sliding core 4 , so that the sliding core 4 can compress the elastic member 5 along the axial direction of the housing 11 . Specifically, in this embodiment, the elastic pressure head 22 may be made of silica gel or other elastic materials, and the use of the elastic pressure head 22 can prevent the sliding core 4 from being worn and improve the safety of the cover.

Embodiment 2:

Referring to FIG. 11 and FIG. 12 , the technical solution of the present invention further provides a packaging container, which includes a container body 100 and the cover 200 described in the first embodiment.

The housing 11 is connected to the container body 100, and the accommodating portion 12 is correspondingly penetrated in the mouth of the container body 100, and blocks the mouth of the container body 100; the upper cover 2 In the state of being fastened with the lower cover 1, the contents in the container body 100 are sealed inside the container body 100, and in the state where the upper cover 2 and the lower cover 1 can rotate relative to each other, the container body The content in 100 can be extruded from the liquid inlet 121 through the hollow inner cavity 42 of the sliding core 4 .

In the above embodiment, the contents can be put into the container body 100 during specific use, and then the lid 200 is used to seal the mouth of the container body 100. Press the pressing part 3 in the radial direction, so that the second engaging part 31 on the pressing part 3 is separated from the first engaging part 21 on the upper cover 2 , at this time, the upper cover 2 and the lower cover 1 are in an opposite position. In the rotating state, that is, the upper cover 2 no longer presses the sliding core 4, and the sliding core 4 moves along the axial direction of the housing 11 under the elastic force of the elastic member 5, so as to protrude a certain distance, making the hollow of the sliding core 4. The inner cavity 42 is communicated with the liquid inlet 121 on the side wall of the accommodating part 12. At this time, when the container body 100 is squeezed, the contents are extruded from the liquid inlet 121 through the hollow inner cavity 42 of the sliding core 4, and the user can take it. Use an appropriate amount of content (for example: facial cleanser), after the content is taken, release the squeeze on the container body 100, the container body returns to its original state, and the content is sucked back into the container body 100 accordingly, so that Avoid waste of contents. When using the packaging container to take the contents of the container body 100, on the one hand, since the sliding core 4 will protrude for a certain distance, the content extruded from the container body will not easily drip on the edge of the lid during use. Therefore, the cleanliness of the lid is ensured; on the other hand, since the container body 100 can return air, the contents can be sucked back into the interior of the container body 100, thereby avoiding the situation that the contents remain on the mouth of the lid and ensuring the lid opening It is clean, clean and beautiful, which improves the overall use effect of the packaging container and provides a better user experience.

Referring to FIG. 13 , in the above embodiment, preferably, the outer wall of the mouth of the container body 100 has a limit groove 101 , and as shown in FIG. 6 , the inner wall of the housing 11 has a limit groove 101 . Protrusions 113. When the housing 11 is connected to the container body 100, the limiting protrusions 113 are engaged with the limiting grooves 101 to limit the housing 11 and the container body 100. The relative position of the container body 100 .

Specifically, the case 11 is threadedly connected to the container body 100 for explanation. When the case 11 is threadedly connected to the container body 100, as the case 11 is gradually tightened clockwise, the limiting protrusion 113 Gradually approaching the limiting groove 101, when the casing 11 and the container body 100 are screwed in place, the limiting protrusion 113 will be snapped into the limiting groove 101, and there will be a "click" sound to prompt use The user is screwed in place, so that the user has a better feel. At the same time, the relative position of the lid 200 and the container body 100 can be fixed by the mutual engagement of the limiting protrusion 113 and the limiting groove 101, so that the lid 200 will not be connected to the container body even if it is subjected to a certain torsion force. The relative rotation of the cover 100 occurs, thereby improving the stability of the cover 200 in use.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A lid, comprising:

the lower cover comprises a shell and an accommodating part, the accommodating part is arranged on the shell along the axial direction of the shell, the top of the accommodating part is open, at least one liquid inlet is formed in the side wall of the accommodating part, and an elastic part is arranged in the accommodating part;

the upper cover is buckled on the lower cover and is rotatably connected with the shell, and a first clamping part is arranged on the upper cover;

the pressing part is arranged on the shell and is provided with a second clamping part which can be clamped with the first clamping part so as to enable the upper cover and the lower cover to be buckled; the pressing part can move along the radial direction of the shell so as to enable the second clamping part to be separated from the first clamping part and enable the upper cover and the lower cover to rotate relatively;

the sliding core is arranged in the elastic piece in a penetrating way so that the abutting part is abutted against the elastic piece; under the state that the upper cover and the lower cover are buckled, the upper cover is covered on the top of the sliding core in a pressing mode, so that the sliding core can compress the elastic piece along the axial direction of the shell; under the state that the upper cover and the lower cover can rotate relatively, the sliding core can move along the axial direction of the shell under the action of the elastic force of the elastic piece, so that the hollow inner cavity of the sliding core is communicated with the liquid inlet of the accommodating part.

2. The lid of claim 1, wherein the housing comprises an outer housing and an inner housing, an axis of the outer housing coinciding with an axis of the inner housing; the outer shell body with rotatable the being connected of upper cover, the portion of holding follows the axial direction of interior casing set up in on the interior casing, interior casing is used for being connected with container body.

3. The lid as claimed in claim 2, wherein a stopper is formed on an inner wall of a top of the receiving portion, and the slide core is movable by a predetermined distance in an axial direction of the inner housing under an elastic force of the elastic member in a state where the upper lid and the lower lid are relatively rotatable, so that the abutting portion abuts against the stopper.

4. The cover of claim 2, wherein a sealing part is arranged at the bottom of the accommodating part, and the bottom opening of the sliding core is sleeved on the sealing part and is in interference fit with the sealing part under the state that the upper cover and the lower cover are buckled with each other.

5. The lid of claim 2, wherein the receptacle has a diameter that increases from distal to proximal to the lid end to enable an outer wall of the receptacle to have an interference fit with an inner wall of the container body.

6. The cap of claim 2, wherein the pressing portion comprises a pressing block and two elastic arms, the second engaging portion is disposed on the top of the pressing block, and the two elastic arms are disposed on two sides of the pressing block respectively; one end of each elastic arm, which is far away from the pressing block, is provided with a protruding part, a clamping groove is formed on the inner wall of the outer shell, and the protruding parts can be clamped with the clamping grooves so that the pressing parts are connected with the outer shell;

the bending direction of the elastic arm faces to the center of the outer shell, so that the elastic arm can drive the pressing block to elastically move along the radial direction of the outer shell.

7. The cover according to claim 1, wherein an annular groove is further formed in the outer wall of the sliding core, a sealing ring is arranged in the annular groove, and the sealing ring is located between the sliding core and the inner wall of the accommodating part;

or, be formed with annular seal portion on the inner wall of holding portion, smooth core wears to establish in the holding portion, just the outer wall of smooth core with annular seal portion interference fit.

8. The cover of claim 1, wherein an elastic pressing head is provided at a position corresponding to the slide core on the upper cover, and the elastic pressing head presses the top of the slide core in a state that the upper cover is fastened to the lower cover, so that the slide core can compress the elastic member in an axial direction of the housing.

9. A packaging container comprising a container body and a cap according to any one of claims 1 to 8, wherein the housing is connected to the container body and the accommodating portion is correspondingly inserted into and closes off the mouth of the container body; under the state of upper cover and lower cover looks lock, this internal content of container is sealed inside the container body, under upper cover and lower cover can the relative pivoted state, this internal content of container can be followed the inlet process the cavity quilt of smooth core is extruded.

10. The packaging container according to claim 9, wherein a limit groove is provided on an outer wall of the mouth portion of the container body, a limit projection is provided on an inner wall of the casing, and the limit projection is engaged with the limit groove in a state where the casing is connected to the container body, so as to limit a relative position of the casing and the container body.

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