CN211811061U

CN211811061U - Rim of a cup seal structure of drinking cup

Info

Publication number: CN211811061U
Application number: CN201922340184.7U
Authority: CN
Inventors: 应时行
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-10-30
Anticipated expiration: 2029-12-23

Abstract

The utility model relates to a rim of a cup seal structure of drinking cup, comprising a cup body, bowl cover and rim of a cup sealing washer, the bottom of bowl cover is equipped with an annular boss and a first annular step face that sets up around annular boss periphery, be equipped with opening annular mounting groove down on the first annular step face, the round surface is equipped with an annular flange in the rim of a cup portion of cup, the rim of a cup sealing washer includes integrated into one piece's upper portion erection section and lower part seal section, upper portion erection section card is gone into in the annular mounting groove, the inboard of lower part seal section and the excircle surface seal laminating of annular boss, the outside and the sealed laminating of annular flange of lower part seal section, still be formed with second annular step face between upper portion erection section and the lower part seal section, the sealed laminating of second annular step face and first annular step face. The utility model discloses can simplify mould structure, make things convenient for the product preparation, improve production and assembly efficiency, and simple to operate is firm, sealed reliable, heat insulating ability is good.

Description

Rim of a cup seal structure of drinking cup

Technical Field

The utility model belongs to the technical field of drinking water container and specifically relates to a rim of a cup seal structure of drinking cup is related to.

Background

The sealing structure of the cup mouth of the cup in the current market mainly comprises the following two types:

as shown in figure 1, an annular mounting groove 112 is radially formed in the outer circumferential surface of the bottom of an inner plug 111 of a cup cover 11, a cup mouth sealing ring 12 is clamped in the annular mounting groove 112, an annular flange 132 is arranged on the inner circumferential surface of a cup mouth portion 131 of a cup body 13, and when the cup cover 11 covers the cup mouth portion 131 of the cup body 13, the outer side of the cup mouth sealing ring 12 is in sealing fit with the annular flange 132, so that the cup mouth of the cup is sealed. The disadvantages of such a sealing structure are: 1) because the annular mounting groove for mounting the cup opening sealing ring is of a radial groove structure, when the cup cover is manufactured, an auxiliary slide block which is vertical to the die opening direction of the movable die (namely radial direction) is also designed to form the radial groove besides the movable die and the fixed die which are used for forming the main body part of the cup cover and axially open the die, so that the structure of the die is complex, the cost is high, the maintenance is inconvenient, a process is added during die opening and closing, and the inconvenience is brought to the manufacture of the cup cover; 2) When the mould with the radial auxiliary sliding block is used for forming the cup cover, generally, only two products can be produced by one mould, and if more products are produced by one mould, the volume of the mould is large, so that the mould is not available, and the production efficiency of the cup cover is greatly influenced; 3) because the aperture of rim of a cup sealing washer is less than the external diameter of interior end cap bottom, so when installing this kind of annular mounting groove that radially offers, need one end earlier cover to interior end cap bottom one side, then pull another end hard and make the rim of a cup sealing washer outwards expand a certain extent and just can wholly overlap in annular mounting groove, all have certain requirement to assembly workman's assembly skill and proficiency for this reason, this not only influences assembly efficiency easily, but also causes the tensile damage to the rim of a cup sealing washer easily, thereby influence the adhesion of its life and installation.

Another is as shown in fig. 2, an annular mounting groove 214 is axially formed on the top wall of a sleeve opening 213 formed between the inner plug 211 and the outer sleeve 212 of the cup cover 21, and the cup opening sealing ring 22 is clamped in the annular mounting groove 214, when the cup cover 21 covers the cup opening 231 of the cup body 23, the bottom end of the cup opening sealing ring 22 abuts against and is matched with the top end of the cup opening 231 of the cup body 23, thereby realizing the sealing of the cup opening of the cup. The disadvantages of such a sealing structure are: 1) the sealing part is far away from the water storage cavity in the cup body, so the heat insulation performance is not as good as that of the former sealing structure; 2) the bottom end of the cup opening sealing ring is butted with the top end of the cup opening part of the cup body in an up-and-down abutting mode to realize sealing, and the two sides of the bottom end of the cup opening sealing ring are not limited, so that the bottom end of the cup opening sealing ring is easy to be propped up and cannot be normally attached to the top end of the cup opening part of the cup body in the matching process, the sealing performance between the bottom end of the cup opening sealing ring and the top end of the cup opening part of the cup body is; 3) because the top end of the cup mouth part of the cup body is generally of a pointed structure, the cup mouth sealing ring is easy to be damaged by jacking in the frequent jacking and sealing process with the bottom end of the cup mouth sealing ring, thereby influencing the service life of the cup mouth sealing ring; 4) The cup mouth sealing ring is fixed only by clamping the upper part of the cup mouth sealing ring into the annular mounting groove, is lack in firmness and is easy to fall off in the frequent abutting matching process; 5) because the annular mounting groove is hidden in the annular sleeve opening of the cup cover, the mounting of the cup opening sealing ring is inconvenient and can be completed by tools.

For this reason, improvements have yet to be made by the relevant practitioner.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a cup rim sealing structure which can simplify the structure of a mold, facilitate the manufacture of products, improve the production and assembly efficiency, and has the advantages of firm installation, reliable sealing and good heat preservation.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a rim of a cup seal structure of drinking cup, includes cup, bowl cover and rim of a cup sealing washer, the bottom of bowl cover is equipped with an annular boss and one winds the first annular step face that annular boss periphery set up, be equipped with opening annular mounting groove down on the first annular step face, the round surface is equipped with an annular flange in the rim of a cup portion of cup, the rim of a cup sealing washer includes integrated into one piece's upper portion erection section and lower part seal section, upper portion erection section card is gone into in the annular mounting groove, the inboard of lower part seal section with the sealed laminating of the outer circular surface of annular boss, the outside of lower part seal section with the sealed laminating of annular flange, upper portion erection section with still be formed with second annular step face between the lower part seal section, second annular step face with the sealed laminating of first annular step face.

Furthermore, the cup cover comprises an inner plug and an outer sleeve which are integrally formed, the outer sleeve is arranged around the periphery of the inner plug, an annular sleeve opening with a closed upper end and an opened lower end is formed between the inner peripheral wall of the outer sleeve and the outer peripheral wall of the inner plug, an internal thread is arranged on the inner peripheral wall of the outer sleeve, an external thread is arranged on the outer circular surface of the cup opening part of the cup body, the cup opening part of the cup body extends into the annular sleeve opening and is connected with the internal thread through the external thread, the inner plug is sleeved in the cup opening part of the cup body, and the annular boss and the first annular step surface are arranged at the bottom of the inner plug.

Further, the interior lateral wall face of annular mounting groove with the excircle surface parallel and level of annular boss, it is corresponding, the upper portion installation section inboard surface and the sealed section inboard surface parallel and level of lower part of rim of a cup sealing washer.

Furthermore, the annular flange is of a structure which is radially raised in a wave crest shape, and the outer side of the lower sealing section of the cup opening sealing ring is in sealing fit with the upper surface and the inner side surface of the annular flange.

Furthermore, an annular groove with a downward opening is formed in the bottom of the lower sealing section of the cup opening sealing ring.

Furthermore, the bottom of the inner plug protrudes downwards from the outer sleeve.

Furthermore, the annular boss, the first annular step surface and the annular mounting groove are coaxially arranged with the inner plug.

Compared with the prior art, the beneficial effects of the utility model are that:

firstly, the utility model discloses because the slot structure that the annular mounting groove that is used for installing the rim of a cup sealing washer was seted up for the axial, so when the preparation bowl cover, only need on the movable mould of shaping bowl cover main part or the cover half an organic whole design out corresponding molding can, and need not to design radial supplementary slider in addition, consequently not only simplified the mould structure greatly, the mould cost has been reduced, the convenience and the life that the mould was maintained have been improved, and the process when also having reduced the mould that opens and shuts, the preparation that makes the bowl cover becomes simple and easy more. And simultaneously, the utility model discloses a plurality of products can be gone out to this kind of mould structure mould when the shaping bowl cover, have greatly improved the production efficiency of bowl cover, and the economic benefits who brings from this is showing very.

Secondly, the utility model discloses a rim of a cup sealing washer when the installation, only need with its overcoat in the annular boss of interior end cap bottom to go into the upper portion installation section card of rim of a cup sealing washer can in the annular mounting groove, at this in-process, because the aperture of rim of a cup sealing washer is unanimous basically with the external diameter of annular boss, in addition the axial slot structure of annular mounting groove bottom for exposing in, consequently, it is more simple and convenient that the installation is got up, greatly reduced the requirement to workman assembly skill and proficiency, borrow this and make the assembly efficiency of product obtain effectively improving.

Furthermore, the utility model discloses because the installation position of rim of a cup sealing washer is more close to in the cup water storage chamber, so thermal insulation performance is better.

Then, the utility model discloses a rim of a cup sealing washer not only upper portion installation section card is gone into in the annular mounting groove, and the inboard of lower part canned paragraph is supported with the excircle surface of annular boss moreover, and the second annular step face that forms between upper portion installation section and the lower part canned paragraph also supports with first annular step face and pushes up simultaneously, consequently installs more firmly reliably, can not appear the obscission in the use.

Finally, the utility model discloses a sealed of drinking cup rim of a cup is realized to the sealed laminating of annular flange upper surface and medial surface in the outside of rim of a cup sealing washer lower part seal section and the cup rim of a cup portion, and effective contact surface when not only sealing is bigger, and the mode of sealed laminating is also reasonable more reliable moreover, can not appear the rim of a cup sealing washer by the top phenomenon that normally laminating and rim of a cup sealing washer are supported badly like among the prior art.

Drawings

Fig. 1 is a schematic view of a first sealing structure of a cup rim in the background art.

Fig. 2 is a schematic view of a second sealing structure of a cup rim in the background art.

Fig. 3 is a schematic longitudinal sectional view of the cup of the present invention.

Fig. 4 is a schematic view of the sealing structure of the cup rim of the cup of the present invention.

Fig. 5 is a schematic sectional and exploded view of the cup lid and the cup rim sealing ring of the present invention.

Fig. 6 is a three-dimensional exploded view of the cup lid and the cup rim sealing ring of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments shown in the drawings.

As shown in fig. 1 to 6, the cup rim sealing structure of the cup in this embodiment includes a cup body 31, a cup lid 32 and a cup rim sealing ring 33. The bottom of the cup lid 32 is provided with an annular boss 325 and a first annular step surface 326 arranged around the periphery of the annular boss 325, the first annular step surface 326 is provided with an annular mounting groove 327 with a downward opening, and the inner circular surface of the cup opening 311 of the cup body 31 is provided with an annular flange 313. The cup mouth sealing ring 33 comprises an upper mounting section 331 and a lower sealing section 332 which are integrally formed, the upper mounting section 331 is clamped in the annular mounting groove 327, the inner side of the lower sealing section 332 is in sealing fit with the outer circular surface of the annular boss 325, the outer side of the lower sealing section 332 is in sealing fit with the annular flange 313, a second annular step surface 333 is further formed between the upper mounting section 331 and the lower sealing section 332, and the second annular step surface 333 is in sealing fit with the first annular step surface 326, so that the sealing between the cup cover 32 and the cup mouth portion 311 of the cup body 31, namely the sealing of the cup mouth is realized.

As a preferable structure, the cup cover 32 comprises an inner plug 321 and an outer sleeve 322 which are integrally molded, the outer sleeve 322 is arranged around the periphery of the inner plug 321, an annular sleeve opening 323 with a closed upper end and an opened lower end is formed between the inner peripheral wall of the outer sleeve 322 and the outer peripheral wall of the inner plug 321, and the inner peripheral wall of the outer sleeve 322 is provided with an internal thread 324. The outer circular surface of the cup opening part 311 of the cup body 31 is provided with an external thread 312, the cup opening part 311 of the cup body 31 extends into the annular sleeve opening 323 and is connected with the internal thread 324 through the external thread 312, the internal plug 321 is sleeved into the cup opening part 311 of the cup body 31, and the annular boss 325 and the first annular step surface 326 are both arranged at the bottom of the internal plug 321.

Preferably, the inner side wall surface of the annular mounting groove 327 is flush with the outer circumferential surface of the annular boss 325, and correspondingly, the inner side surface of the upper mounting section 331 of the cupped seal ring 33 is flush with the inner side surface of the lower sealing section 332. The design can simplify the structure and improve the convenience and firmness of installing the cup opening sealing ring 33.

Preferably, the annular flange 313 is a radially wave-shaped protrusion, and the outer side of the lower sealing section 332 of the cup sealing ring 33 is in sealing fit with the upper surface and the inner side surface of the annular flange 313, so as to increase the effective contact area during sealing and improve the sealing reliability.

Preferably, the bottom of the lower sealing section 332 of the lip seal 33 is provided with a downwardly opening annular groove 334, the annular groove 334 helping to locally deform the outer side of the lower sealing section 332 of the lip seal 33 under compression and thus facilitating sealing engagement with the annular flange 313.

Preferably, the bottom of the inner plug 321 protrudes downward from the outer sleeve 322, so that the annular mounting groove 327 is exposed to facilitate the installation of the rim sealing ring 33, and the installation position of the rim sealing ring 33 is close to the water storage cavity 310 in the cup body 31 as much as possible to improve the sealing and heat preservation effects.

Further, the annular boss 325, the first annular step surface 326 and the annular mounting groove 327 are all coaxially disposed with the inner plug 321.

The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention can not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.

Claims

1. The utility model provides a rim of a cup seal structure of drinking cup, includes cup, bowl cover and rim of a cup sealing washer, its characterized in that: the bottom of bowl cover is equipped with an annular boss and one winds the first annular step face that annular boss periphery set up, be equipped with opening annular mounting groove down on the first annular step face, the round surface is equipped with an annular flange in the rim of a cup portion of cup, the rim of a cup sealing washer includes integrated into one piece's upper portion erection section and lower part canned paragraph, upper portion erection section card is gone into in the annular mounting groove, the inboard of lower part canned paragraph with the sealed laminating of annular boss's excircle surface, the outside of lower part canned paragraph with the sealed laminating of annular flange, upper portion erection section with still be formed with second annular step face between the canned paragraph of lower part, the second annular step face with the sealed laminating of first annular step face.

2. The rim sealing structure of a cup according to claim 1, wherein: the cup cover comprises an integrally formed inner plug and an outer sleeve, the outer sleeve is arranged around the periphery of the inner plug, an annular sleeve opening with a closed upper end and an opened lower end is formed between the inner peripheral wall of the outer sleeve and the outer peripheral wall of the inner plug, an internal thread is arranged on the inner peripheral wall of the outer sleeve, an external thread is arranged on the outer circular surface of the cup opening of the cup body, the cup opening of the cup body extends into the annular sleeve opening and passes through the external thread and the internal thread connection, the inner plug is sleeved in the cup opening of the cup body, and the annular boss and the first annular step surface are arranged at the bottom of the inner plug.

3. The rim sealing structure of a cup according to claim 1 or 2, wherein: the interior lateral wall face of annular mounting groove with the excircle surface parallel and level of annular boss, it is corresponding, the inboard surface parallel and level of upper portion installation section inboard surface and the sealed section inboard surface in lower part of rim of a cup sealing washer.

4. The rim sealing structure of a cup according to claim 1 or 2, wherein: the annular flange is of a structure which is radially raised in a wave crest shape, and the outer side of the lower sealing section of the cup opening sealing ring is in sealing fit with the upper surface and the inner side surface of the annular flange.

5. The rim sealing structure of a cup according to claim 1 or 2, wherein: and an annular groove with a downward opening is formed at the bottom of the lower sealing section of the cup mouth sealing ring.

6. The rim sealing structure of a cup according to claim 2, wherein: the bottom of the inner plug protrudes downwards from the outer sleeve.

7. The rim sealing structure of a cup according to claim 2, wherein: the annular boss, the first annular step surface and the annular mounting groove are coaxially arranged with the inner plug.