CN218641501U

CN218641501U - Side pressure canned type plastic bottle lid

Info

Publication number: CN218641501U
Application number: CN202223238803.XU
Authority: CN
Inventors: 陈金培
Original assignee: Jinfu Technology Co ltd
Current assignee: Jinfu Technology Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-03-17
Anticipated expiration: 2032-11-30

Abstract

The utility model provides a side pressure canned type plastic bottle lid, includes integrated into one piece's top surface and lateral wall, be equipped with the internal thread on the lateral wall, the internal thread be used for with the bottleneck threaded connection of bottle, the handing-over position of top surface and lateral wall is equipped with the sealing bead, the sealing bead slope set up downwards and with contained angle between the top surface is 70-85, thereby the tip of sealing bead is used for realizing the sealed of bottle and bottleneck with the lateral wall interference fit of the bottleneck of bottle. Compared with the prior art, the utility model discloses a plastic bottle lid passes through the lateral wall interference fit of the bottleneck of sealing layering and bottle, on the sealing performance's between having guaranteed plastic bottle lid and the bottle basis, has improved the stability in use of sealing layering, has avoided among the prior art sealing layering to be supported the rupture that presses and lead to by the top of bottle, the condition that falls into in the bottle behind the sealing layering rupture.

Description

Side pressure canned type plastic bottle lid

Technical Field

The utility model relates to a plastics bottle lid technical field, concretely relates to side pressure seal type plastics bottle lid.

Background

At present, the existing bottle cap has a sealing structure to seal the connection position between the bottle body and the bottle cap, for example, chinese patent CN96237734.1 discloses a radial sealing gasket and wedge-surface elastic lock catch anti-theft plastic bottle cap, wherein, a sealing ring gasket is arranged on an upper base body, the root of the sealing ring gasket and the inner side wall of the upper base body form an included angle of 45 to 80 degrees, and the specification attached with fig. 3 shows that, when in use, the top of the bottle body props against the sealing ring gasket, the sealing ring gasket is pressed upwards, and the sealing ring gasket and the top of the bottle body mutually prop against each other to realize the sealing of the two. However, due to the sealing between the bottle cap and the bottle body, the top of the bottle body can press the sealing ring gasket, and the sealing ring gasket is easily damaged after being pressed for multiple times, and even the sealing ring gasket is broken, so that the sealing ring gasket finally falls into the bottle body.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not enough among the prior art, the sealed type plastics bottle lid of side pressure that sealing performance and performance are better.

In order to achieve the above purpose, the technical scheme of the utility model is as follows.

The utility model provides a side pressure canned type plastic bottle lid, includes integrated into one piece's top surface and lateral wall, be equipped with the internal thread on the lateral wall, the internal thread be used for with the bottleneck threaded connection of bottle, the handing-over position of top surface and lateral wall is equipped with the sealing bead, the sealing bead slope set up downwards and with contained angle between the top surface is 70-85, thereby the tip of sealing bead is used for realizing the sealed of bottle and bottleneck with the lateral wall interference fit of the bottleneck of bottle.

Furthermore, the bottom of the top surface of the plastic bottle cap is provided with continuously distributed sealing convex strips, and the sealing convex strips are used for abutting against the inner side wall of the bottle mouth of the bottle body.

Furthermore, one side of the sealing convex strip close to the side wall is provided with a convex part.

Furthermore, the position of the sealing convex strip between the convex part and the top surface is provided with an avoiding isolation part.

Furthermore, the end part of the sealing convex strip close to one side of the side wall is provided with a guide part.

Furthermore, the end part of one side of the sealing pressing strip close to the middle position of the top surface is an arc-shaped surface.

Further, in the direction of the main view projection, the distance between the bottom end of the sealing bead and the top surface is not more than 1mm.

Further, the bottom is equipped with the annular groove, the annular groove is located sealed sand grip and is close to one side of top surface intermediate position and the position that is close to sealed sand grip.

Further, the depth of the annular groove is 0.1-0.2 times of the thickness of the top surface.

Further, the width of the annular groove is 1-2 mm.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the sealing strip in the plastics bottle lid, the sealing strip with contained angle between the top surface is 70-85, during the use, the lateral wall interference fit of the bottleneck of sealing strip and bottle, this has realized the sealed between plastics bottle lid and the bottle. The sealing pressing strip is in interference fit with the outer side wall of the bottle opening of the bottle body, so that the use stability of the sealing pressing strip is improved on the basis of ensuring the sealing performance between the plastic bottle cap and the bottle body, and the conditions that the sealing pressing strip is broken due to the fact that the sealing pressing strip is pressed by the top of the bottle body in the prior art and falls into the bottle body after being broken are avoided.

Drawings

Fig. 1 is a perspective view of a plastic bottle cap according to the present invention;

fig. 2 is a half-sectional view of a plastic bottle cap;

fig. 3 is a partial schematic view of the plastic bottle cap of fig. 2;

a top surface 1; a side wall 2; an internal thread 21; a bottle mouth 3; a sealing pressing strip 4; sealing the convex strips 5; a boss 51; a avoiding spacer 52; a guide portion 53; an annular groove 6.

Detailed Description

In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do 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 present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The technical solution of the present invention will be further explained with reference to fig. 1-3.

A side pressure sealing type plastic bottle cap is disclosed, and referring to figures 1-3, the side pressure sealing type plastic bottle cap comprises a top surface 1 and a side wall 2 which are integrally formed by injection molding, wherein an internal thread 21 in threaded connection with a bottle opening 3 of a bottle body (not shown) is arranged on the side wall 2, a sealing pressing strip 4 is arranged at the joint position of the top surface 1 and the side wall 2, and the sealing pressing strip 4 is obliquely and downwards arranged. Above through sealing layering 4 and the lateral wall interference fit of the bottleneck 3 of bottle, on the basis of having guaranteed the sealing performance between plastics bottle lid and the bottle, improved sealing layering 4's stability in use, avoided among the prior art sealing layering 4 to be supported the rupture that leads to by the top of bottle, the condition that sealing layering 4 falls into in the bottle after the rupture.

As an improvement, referring to fig. 2-3, the end of the sealing bead 4 near the middle of the top surface 1 is an arc surface, so that when the top of the bottle body moves upwards to contact with the end of the sealing bead 4, the sealing bead 4 is in point contact with the outer sidewall of the bottle body, which greatly reduces the frictional torque force between the bottle cap and the bottle body compared with the prior art in which the sealing ring gasket contacts with the top of the bottle body (the contact between the sealing bead and the bottle body is surface contact), thereby facilitating the user to twist off the bottle cap and facilitating the use of the user.

As an improvement, the sealing performance of the plastic bottle cap and the bottle body is ensured by interference fit of the plastic bottle cap and the bottle body, the interference magnitude is a first distance, and the first distance is preferably 0.05-0.2 mm. Referring to fig. 2, the included angle between the sealing bead 4 and the top surface 1 is 70-85 °, and the distance between the bottom of the sealing bead 4 and the top surface is not more than 1mm. The specific angle and distance ensure the sealing performance and the service performance between the sealing pressing strip 4 and the bottle body 1, and simultaneously avoid the interference between the end part of the sealing pressing strip 4 and the thread of the bottle body opening. Specifically, on the basis of ensuring the interference magnitude between the plastic bottle cap and the bottle body, if the included angle is too large, the length of the sealing pressing strip 4 is longer, the sealing pressing strip 4 is easy to prop against the thread of the bottle body, so that the plastic bottle cap cannot be screwed tightly, and in addition, the too large angle is easy to cause the radial force of the sealing pressing strip 4 to be reduced, so that the sealing effect is reduced; if the included angle is too small, the radial force of the sealing pressing strip 4 is larger, so that the friction torque force between the bottle cap and the bottle body is increased, a user is inconvenient to unscrew the plastic bottle cap, and the use performance is poor.

As a modification, referring to fig. 3, the bottom of the top surface of the plastic bottle cap is provided with a continuously distributed sealing rib 5, and the sealing rib 5 is annular in a top projection direction. The sealing convex strip 5 is provided with a convex part 51 at one side close to the side wall 2, and the convex part 51 is also in an arc shape. When the plastic bottle cap is screwed into the bottle body, the convex part 51 props against the inner side wall of the bottle mouth of the bottle body towards one side of the side wall 2, when the plastic bottle cap continues to rotate, the sealing pressing strip 4 props against the outer side wall of the bottle mouth of the bottle body towards one side of the middle position of the side wall 2, and under the action of opposite resisting pressure in the directions of the convex part 51 and the sealing pressing strip 4, the two resisting pressure of the convex part 51 and the sealing pressing strip 4 are mutually matched, so that the sealing performance between the plastic bottle cap and the bottle mouth is further improved. As another improvement, the sealing convex strip 4 is provided with a avoiding partition 52 at a position between the convex part 51 and the top surface 1, and the avoiding partition 52 is in an inward concave arc shape in the direction of the main view projection. The position isolation part 52 can be arranged to avoid interference between the boss part 51 and the top surface 1 after the plastic bottle cap is screwed into the bottle body, and in addition, the position isolation part 52 can effectively play a role in isolation and sealing, so that the sealing effect between the plastic bottle cap and the bottle body is further improved. As another modification, the end portion of the seal rib 51 on the side close to the side wall 2 is provided with a guide portion 53. This guide portion 53 is sharp horn shape from bellying 51 downwardly extending, sets up this guide portion 53 and can guide the bottleneck of bottle to get into between sealed sand grip 5 and the lateral wall 2 when the bottleneck of bottle upwards moves for the plastic bottle lid to the unobstructed of the process of screwing in has been guaranteed.

In the process of injection molding of the plastic bottle cap, stress shrinkage can occur. The size that the shrink can lead to the bottle lid takes place to float for the plastics bottle lid takes place to shrink, if take place the shrink in the position of sealed sand grip root, can make sealed sand grip incline partially to too tightly or too pine when leading to sealed sand grip and bottleneck cooperation finally leads to assembly, sealing performance unstable, when the cooperation between sealed sand grip and the bottleneck is too loose, this has greatly reduced the sealed effect of both pieces. As a modification, referring to fig. 2-3, the bottom of the top surface 1 of the plastic bottle cap is provided with an annular groove 6, the cross-sectional shape of the annular groove 6 is rectangular, and the annular groove 6 is provided on one side of the sealing rib 5 near the middle of the top surface 1 and near the sealing rib 5. Through setting up annular groove 6, changed the flow direction of plastics molecule when the shaping, the thickness of attenuate plastic part simultaneously finally reduces the shrink of 5 roots of sealed sand grip, has alleviated the too big and sealed problem of effect of influence of 5 root shrinkage of sealed sand grip.

Because the thickness of top surface 1 itself is thinner, if the degree of depth of annular groove 6 is too dark, then the face relative to annular groove 6 position on top surface 1 can be thinner, and the face of this department is destroyed easily, has reduced the quality of top surface 1, if the degree of depth of annular groove 6 is too shallow, then its effect of alleviating to stress contraction is not obvious, thereby sealed 5 root shrinkage of sand grip still can too big influence sealed sand grip 5 sealed effect. As a modification, the depth of the annular groove 6 is 0.1 to 0.2 times the thickness of the top surface 1. The depth of the annular groove 6 is set to be the specific proportion, so that the problem of overlarge shrinkage of the root of the sealing convex strip 5 can be effectively solved, the quality of the top surface of the plastic bottle cap can be guaranteed, and the problem that the plastic bottle cap is easy to damage due to the fact that the top surface is thin is avoided.

The width of the annular groove 6 is 1-2 mm. The width of the annular groove 6 is set to be the size which can effectively relieve the problem that the root shrinkage of the sealing convex strip 5 is too large and reduce the requirements of an injection mold and the design and manufacturing cost. Specifically, if the size of the annular groove 6 is large, the bottom of the annular groove 6, i.e., the root position of the sealing rib 5, does not change the flow direction of the molten glue during injection molding, and the root position of the sealing rib 5 forms a new shrinkage area again; if the size of the annular groove 6 is small, a structure corresponding to the small annular groove 6 needs to be designed in the injection mold, which improves the design and manufacturing precision of the injection mold, and thus increases the design and manufacturing cost.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a side pressure canned type plastic bottle lid which characterized in that: the bottle comprises an integrally formed top surface and a side wall, wherein an internal thread is arranged on the side wall and is used for being in threaded connection with a bottle opening of a bottle body, a sealing pressing strip is arranged at the joint position of the top surface and the side wall, the sealing pressing strip is obliquely and downwards arranged and forms an included angle of 70-85 degrees with the top surface, and the end part of the sealing pressing strip is used for being in interference fit with the outer side wall of the bottle opening of the bottle body so as to seal the bottle body and the bottle opening.

2. The side pressure seal type plastic bottle cap according to claim 1, characterized in that: the bottom of the top surface of the plastic bottle cap is provided with continuously distributed sealing convex strips, and the sealing convex strips are used for abutting against the inner side wall of the bottle mouth of the bottle body.

3. The side pressure seal type plastic bottle cap according to claim 2, characterized in that: and one side of the sealing raised line close to the side wall is provided with a raised part.

4. The side-pressure sealing type plastic bottle cap according to claim 3, wherein: and the position of the sealing convex strip between the lug boss and the top surface is provided with a clearance isolation part.

5. The side pressure seal type plastic bottle cap according to claim 2, characterized in that: the end part of the sealing convex strip close to one side of the side wall is provided with a guide part.

6. The side pressure seal type plastic bottle cap according to claim 1, characterized in that: the end part of one side of the sealing pressing strip close to the middle position of the top surface is an arc-shaped surface.

7. The side-pressure sealing type plastic bottle cap as claimed in any one of claims 1 to 6, wherein: in the direction of the main view projection, the distance between the bottom end of the sealing pressing strip and the top surface is not more than 1mm.

8. The side-pressure sealing type plastic bottle cap according to claim 3, wherein: the bottom is equipped with the annular groove, the annular groove is located sealed sand grip and is close to one side of top surface intermediate position and the position that is close to sealed sand grip.

9. The side-pressure sealing type plastic bottle cap according to claim 8, wherein: the depth of the annular groove is 0.1-0.2 times of the thickness of the top surface.

10. The side-pressure sealing type plastic bottle cap according to claim 8, wherein: the width of the annular groove is 1-2 mm.