CN222098447U - Cutter, bottle cap assembly with sealing film not easy to fall off, and packaging bottle - Google Patents

Abstract

The utility model relates to the field of packaging technology, and provides a cutter, a bottle cap assembly with a sealing film that is not easy to fall off, and a packaging bottle. The cutter, the cutter, the upper cover body, and the lower ring body are assembled together to form a bottle cap assembly, including a cylindrical main body, a retaining ring arranged in the cylindrical main body, and a cutting piece connected to the retaining ring. One end of the cylindrical main body has a first opening for the cylindrical silo of the upper cover body to enter, and the opposite end has a second opening for the powder in the silo to pass through after being released; the inner side wall of the cylindrical main body is provided with a first internal thread matching the first external thread provided on the outer wall of the silo; the first external thread is composed of at least one first spiral convex strip, and a limiting block is provided at the tail end of at least one of all the first spiral convex strips, and at least a part of the limiting block is located on the extension path of the spiral groove. Due to the setting of the limiting block, the cutter can prevent the sealing film from falling off when the bottle cap assembly is closed again after the bottle cap assembly is screwed open.

Description

Bottle cap assembly with cutter and sealing film not easy to fall off and packaging bottle

Technical Field

The utility model relates to the technical field of packaging, in particular to a bottle cap assembly and a packaging bottle with a cutter and a sealing film not easy to fall off.

Background

The existing beverage on the market is popular with more consumers due to novel drinking modes. The packaging bottle for the existing beverage is generally composed of a bottle cap, a cutter and a bottle body, wherein the cutter and the bottle body are assembled in the bottle cap, the bottle cap comprises a storage bin, solid powder is arranged in the storage bin and is sealed by a sealing film, and when the bottle cap is screwed and opened, the sealing film is cut off under the action of the cutter, so that the solid powder falls into liquid in the bottle body.

The use mode of the user is that the bottle cap is opened to enable the powder stored in the storage bin to enter the bottle body, then the bottle cap component is closed, the packaging bottle is shaken, and the powder and the liquid are fully and uniformly mixed. In the prior bottle cap assembly structure, the bottle cap assembly is closed after being opened, and the cut sealing film can fall off due to the fact that the cutter returns to the original position.

In view of this, the present utility model has been made.

Disclosure of utility model

The utility model aims to provide a cutter, a bottle cap assembly with a sealing film not easy to fall off and a packaging bottle, and aims to solve at least one of the problems in the prior art.

Embodiments of the present utility model are implemented as follows:

In a first aspect, the present utility model provides a cutter, the cutter, an upper cover body and a lower ring body are assembled together to form a bottle cap assembly, the bottle cap assembly comprises a cylindrical main body, a baffle ring arranged in the cylindrical main body, and a cutting member connected with the baffle ring, one end of the cylindrical main body is provided with a first opening for allowing a cylindrical bin of the upper cover body to enter, and the opposite end is provided with a second opening for allowing powder in the bin to pass through after being released;

The inner side wall of the cylindrical main body is provided with a first internal thread matched with a first external thread arranged on the outer wall of the storage bin;

the first external thread is formed by at least one first spiral raised line;

The first internal thread is formed by at least one second spiral raised line, all the second spiral raised lines enclose at least one spiral groove, the number of the spiral grooves is greater than or equal to that of the first spiral raised lines, each spiral raised line is provided with at least one spiral groove matched with the first spiral raised line, and when the upper cover body is assembled with the cutter, each first spiral raised line is clamped into the corresponding spiral groove;

The second spiral sand grip is close to first open-ended one end and is the head end, and the second spiral sand grip is close to second open-ended one end and is the tail end, and the tail end of at least one of all first spiral sand grip is provided with the stopper, and at least part of stopper is in the extending path of helicla flute.

In an alternative embodiment, the number of the first spiral raised strips is the same as the number of the spiral grooves, and when the upper cover body is assembled with the cutter, the first spiral raised strips are clamped into the corresponding spiral grooves in a one-to-one correspondence manner.

In an alternative embodiment, the tail end of each spiral raised line is provided with a limiting block.

In an alternative embodiment, the cutting member comprises at least one cutting blade having a pointed cone shape;

One end of the baffle ring is connected with the cylindrical main body through the connecting ring, and the other end of the baffle ring is connected with each cutting knife.

In a second aspect, the present utility model provides a bottle cap assembly with a sealing film that is not easy to fall off, comprising an upper cap body, a lower ring body and a cutter according to any one of the foregoing embodiments;

The upper cover body comprises a cover main body and a storage bin for storing powder, the storage bin comprises a bin wall and a sealing film, one end of the bin wall is connected with the inner top wall of the cover main body, the outer wall of the other end of the bin wall is provided with first external threads, the end face of the bin wall is connected with the sealing film, and the sealing film is used for sealing the storage bin;

the upper cover body is detachably covered on the lower ring body, the cutter is positioned in the lower ring body, the first internal thread and the first external thread are mutually matched, one end of the storage bin provided with the sealing film stretches into the cylindrical main body, and a gap is reserved between the sealing film and the cutting piece;

The bottle cap assembly is opened, the upper cover body moves upwards relative to the lower ring body, the first external thread drives the cutter to move upwards relative to the storage bin through the first internal thread, in the process of moving upwards of the cutter, the cylindrical main body is gradually sleeved on the outer wall of the storage bin through the first opening, the cutting piece cuts the sealing film and gradually enters the storage bin, the cut sealing film is gradually clamped between the inner wall of the storage bin and the outer wall of the baffle ring, the storage bin is opened, and powder stored in the storage bin is released through the second opening.

In an alternative embodiment, the inner diameter of the bin is 0.3-1.0 mm greater than the outer diameter of the cutting member;

when opening the bottle lid subassembly, the cutting member cuts the sealing membrane and gets into in the feed bin gradually, and the sealing membrane of cutting is established between the outer wall of inner wall and the baffle ring of feed bin gradually, and the powder of storing in the feed bin is released through the second opening.

In an alternative embodiment, the inner side wall of the cover main body is provided with a second internal thread, and the outer side wall of the lower ring body is provided with a second external thread matched with the second internal thread;

The spiral directions of the second internal thread and the first external thread are opposite;

A limiting part for limiting the cutter is arranged in the lower ring body, so that the cutter can only move upwards relative to the lower ring body;

The upper cover body is detachably covered on the lower ring body through the matching of the first internal thread and the first external thread, and the cutter is arranged in the lower ring body and limited by the limiting part;

The bottle cap assembly is opened, the upper cover body is screwed, the bin wall rotates along the screwing direction of the upper cover body, the first external thread drives the cutter to move upwards relative to the upper cover body through the first internal thread, and the upward moving speed of the cutter is greater than that of the upper cover body, so that the cutting piece cuts the sealing film.

In an alternative embodiment, a circle of limiting ring is arranged on the outer wall of one end of the cutter corresponding to the first opening, the inner wall of the limiting part protrudes inwards to form an annular boss, the inner diameter of the annular boss is smaller than the outer diameter of the limiting ring, and the limiting ring is hung on the annular boss in the initial stage;

And/or the outer wall of the cutter is provided with a plurality of limit convex strips parallel to the axis direction of the cutter, the inner wall of the limit part is provided with a plurality of limit grooves parallel to the axis direction of the cutter, the number of the limit grooves is an integral multiple of the number of the limit convex strips, the distribution positions of the limit grooves are matched with the distribution positions of the limit convex strips, each limit convex strip can be inserted into any limit groove, and the limit convex strips are initially inserted into the corresponding limit grooves.

In an alternative embodiment, the bottle cap assembly further comprises a bottle mouth connecting ring, wherein the bottle mouth connecting ring is used for being in threaded connection with a bottle mouth of the bottle body;

The bottleneck connecting ring is connected with the lower ring body into a whole.

In a third aspect, the present utility model provides a packaging bottle comprising a bottle body and a bottle cap assembly according to any one of the preceding embodiments;

the lower ring body is integrally formed with the bottle body as a bottle mouth to form a bottle body.

In a fourth aspect, the present utility model provides a packaging bottle comprising a bottle body and a bottle cap assembly as in the previous embodiments;

the bottle mouth of the bottle body is in threaded connection with the bottle mouth connecting ring.

The embodiment of the utility model has the beneficial effects that:

After the cutter is assembled into the packaging bottle, as the limiting block is arranged at the tail end of the second spiral protruding strip, a user only needs to screw the upper cover body to open the bottle cap assembly, when the upper cover body is screwed to the bottom, the first spiral protruding strip passes over the limiting block continuously with a little force, so that when the upper cover body is screwed to cover the lower ring body, the first spiral protruding strip can not return to the spiral groove any more because the first spiral protruding strip passes over the limiting block, and the cutter can be prevented from returning to the initial position again, and further, the sealing film can not fall off when the bottle cap assembly is closed again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a cutter according to an embodiment of the present utility model at a first view angle;

FIG. 2 is a schematic view of a cutter according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of the cylindrical body of FIG. 1;

Fig. 4 is a schematic structural view of a packaging bottle according to a first embodiment of the present utility model;

Fig. 5 is a schematic structural view of an upper cover body of a bottle cap assembly according to a first embodiment of the present utility model;

FIG. 6 is a top view of the lower ring of the bottle cap assembly according to the first embodiment of the present utility model;

Fig. 7 is a schematic structural view of a packaging bottle according to a second embodiment of the present utility model;

Fig. 8 is a schematic structural view of an upper cover body of a bottle cap assembly according to a second embodiment of the present utility model.

Icon 10-packaging bottle;

100-an upper cover body, 110-a cover body, 110 a-a cover mouth, 111-a second internal thread, 120-a storage bin, 121-a storage bin wall, 122-a sealing film, 130-a first external thread, 131-a first spiral raised strip, 131 a-a starting end, 141-a first convex ring, 142-a second convex ring, 143-a third convex ring and 150-a lower ring body accommodating cavity;

200-cutters, 201-head ends, 202-tail ends, 210-cylindrical bodies, 211-first openings, 212-second openings, 213-first internal threads, 213 a-second spiral raised strips, 213 b-spiral grooves, 214-limiting blocks, 220-cutting pieces, 221-cutting knives, 230-connecting rings, 231-powder leakage holes, 232-connecting blocks, 240-baffle rings, 260-limiting rings and 270-limiting raised strips;

300-lower ring body, 301-second external screw thread, 310-limit part, 311-limit groove and 312-limit boss;

400-bottleneck connecting ring;

510-bottle body, 520-bottle mouth.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

First embodiment

Embodiments of the present utility model provide a cutter 200, a bottle cap assembly with a sealing film 122 that is not easily detached, and a packaging bottle 10.

As shown in fig. 4, the bottle cap assembly provided in this embodiment includes an upper cap body 100, a lower ring body 300, and a cutter 200 provided in this embodiment.

As shown in fig. 1 to 3, the present embodiment provides a cutter 200 including a cylindrical body 210, a baffle ring 240 provided in the cylindrical body 210, and a cutter 220 connected to the baffle ring 240, one end of the cylindrical body 210 having a first opening 211 into which a cylindrical bin 120 of an upper cover 100 is introduced, and the opposite end having a second opening 212 through which powder in the bin 120 is discharged;

The inner sidewall of the cylindrical body 210 is provided with a first female screw 213 which is matched with the first male screw 130 provided on the outer wall of the silo 120;

As shown in fig. 5, the first external thread 130 is formed by at least one first spiral protrusion 131;

The first internal thread 213 is formed by at least one second spiral protruding strip 213a, each second spiral protruding strip 213a encloses a spiral groove 213b, the number of the spiral grooves 213b is greater than or equal to that of the first spiral protruding strips 131, each spiral protruding strip has at least one spiral groove 213b matched with the first spiral protruding strips, when the upper cover 100 is assembled with the cutter 200, each first spiral protruding strip 131 is clamped into the corresponding spiral groove 213b, and when the upper cover 100 is screwed, the first spiral protruding strips 131 move in the corresponding spiral grooves 213 b.

The end of the second spiral raised line 213a close to the first opening 211 is the head end 201, the end of the second spiral raised line 213a close to the second opening 212 is the tail end 202, the tail end 202 of at least one of the first spiral raised lines 131 is provided with a limiting block 214, and at least a part of the limiting block 214 is located on the extending path of the spiral groove 213 b.

As shown in fig. 2 to 4, the upper cover body 100 includes a cover main body 110 and a bin 120 for storing powder, the bin 120 includes a bin wall 121 and a sealing film 122, one end of the bin wall 121 is connected with an inner top wall of the cover main body 110, an outer wall of the other end of the bin wall 121 is provided with a first external thread 130, an end surface is connected with the sealing film 122, and the sealing film 122 is used for sealing the bin 120;

Initially, the upper cover 100 is detachably covered on the lower ring 300, the cutter 200 is located in the lower ring 300, the first external thread 130 and the first internal thread 213 are mutually matched, one end of the storage bin 120 provided with the sealing film 122 extends into the cylindrical main body 210, and a gap is formed between the sealing film 122 and the cutting member 220;

The bottle cap assembly is opened, the upper cap body 100 moves upwards relative to the lower ring body 300, the first external thread 130 drives the cutter 200 to move upwards relative to the bin 120 through the first internal thread 213, the cylindrical main body 210 is gradually sleeved on the outer wall of the bin 120 through the first opening 211 in the upward moving process of the cutter 200, the cutting piece 220 cuts the sealing film 122 and gradually enters the bin 120, the cut sealing film 122 is gradually clamped between the inner wall of the bin 120 and the outer wall of the baffle ring 240, the bin 120 is opened, and powder stored in the bin 120 is released through the second opening 212.

After the bottle cap assembly is assembled into a beverage, the bottle cap assembly is generally used by a user in such a way that the powder stored in the bin 120 is put into the liquid in the packaging bottle 10, then the bottle cap assembly is closed, and the packaging bottle 10 is shaken to mix the powder and the liquid sufficiently. Because the sealing film 122 is clamped between the inner wall of the bin 120 and the outer wall of the baffle ring 240 after being cut when the bottle cap assembly is opened, when the bottle cap assembly is closed again, the cutter 200 returns to the initial position so that the bin 120 and the baffle ring 240 do not clamp the sealing film 122, and the sealing film 122 can fall into the bottle body below to influence the drinking experience.

According to the cutter 200 provided by the utility model, the limiting block 214 is arranged at the tail end 202 of the second spiral raised line 213a, so that a user only needs to screw the upper cover body 100 to open the bottle cap assembly, when the upper cover body 100 is screwed to the bottom, the first spiral raised line 131 passes over the limiting block 214, and when the upper cover body 100 is screwed to cover the lower ring body 300, the first spiral raised line 131 passes over the limiting block 214, the first spiral raised line 131 can not return to the spiral groove 213b any more, and therefore the cutter 200 can be prevented from returning to the initial position again, and the sealing film 122 can not fall off when the bottle cap assembly is closed again.

Alternatively, the number of the first spiral protrusions 131 is the same as the number of the spiral grooves 213b, and when the upper cover 100 is assembled with the cutter 200, the first spiral protrusions 131 are snapped into the corresponding spiral grooves 213b one by one.

Alternatively, as shown in FIG. 4, the inner diameter of the bin 120 is 0.3-1.0 mm larger than the outer diameter of the baffle ring 240.

When the bottle cap assembly is opened, the cutting member 220 cuts the sealing film 122 open and gradually enters the bin 120, the cut sealing film 122 is gradually clamped between the inner wall of the bin 120 and the outer wall of the baffle ring 240, and the powder stored in the bin 120 is released through the second opening 212.

When the cap assembly is opened, cutter 200 moves upward from within lower ring 300 to cut seal 122 open and bin 120 opens to allow powder to fall below to mix with liquid. Because the inside diameter of the bin 120 is 0.3-1.0 mm larger than the outside diameter of the baffle ring 240, the distance between the bin 120 and the baffle ring 240 is 0.3-1.0 mm after the cutter 200 moves upwards, and the gap with the size can ensure that the cut sealing film 122 is clamped in the gap according to the types and the thicknesses of the sealing films 122 common in the market, so that the problem that the sealing film 122 is not easy to enter the gap is avoided, and the phenomenon that the cutter 200 is clamped after the sealing film 122 is cut and the sealing film 122 blocks powder from falling is effectively avoided.

Specifically, the inner diameter of the bin 120 is 0.3-1.0 mm larger than the outer diameter of the cutter 220, such as 0.3mm, 0.4mm, 0.5mm, 0.7mm, 0.8mm, 0.9mm, or 1mm.

Alternatively, the material of the sealing film 122 may be, for example, polyethylene (PE), polyvinyl alcohol (PVOH), polypropylene (PP), polyvinyl acetate (EVA), polyester (PET), aluminum foil, etc.

Alternatively, the thickness of the sealing film 122 is 50 μm to 100 μm, for example 50 μm, 55 μm, 60 μm, 70 μm, 75 μm, 80 μm, 90 μm or 100 μm.

Alternatively, as shown in fig. 4 and 5, the cover main body 110 has a cover opening 110a, the cover main body 110 is covered on the lower ring body 300 through the cover opening 110a, and the bin 120 is located in the cover main body 110 and does not protrude from the cover opening 110a.

Taking the packaging bottle 10 as the beverage packaging bottle 10 as an example, the bin 120 does not extend out of the cover opening 110a, i.e. the bottommost end of the bin 120 is not lower than the bottom edge of the cover main body 110, because the habit of some drinkers is to place the upper cover body 100 on the tabletop at will after opening the upper cover body 100, if the bin 120 extends out of the cover opening 110a, the bin 120 is easy to contact with the tabletop to pollute, generally, the beverage in the bottle body after opening the upper cover body 100 cannot be completely drunk once, and when the upper cover body 100 is covered on the lower ring 300 again, the bin 120 brings the pollutant into the bottle body, which is unfavorable for the health of human body when drinking again. Therefore, the bin 120 does not protrude from the cover opening 110a, so that the above problem can be well avoided.

Alternatively, in order to increase friction between the hand and the upper cover body 100 during screwing, the outer wall of the cover body 110 may be provided with rugged structures, which may be patterns, preferably, in order to meet market demands.

Optionally, as shown in fig. 4, a lower ring body accommodating cavity 150 is enclosed between the bin wall 121 and the inner wall of the cover main body 110, a circle of first convex rings 141 and a circle of second convex rings 142 are arranged on the top wall of the lower ring body accommodating cavity 150 corresponding to the cover main body 110, and the second convex rings 142 are located in the rings of the first convex rings 141. When the upper cover body 100 is covered on the lower ring body 300, the end portion of the lower ring body 300 is sandwiched between the first convex ring 141 and the second convex ring 142.

The provision of the first and second collars 141 and 142 can increase sealability between the upper cover body 100 and the lower ring body 300.

Further, the outer side of the second convex ring 142 is protruded outwards, so that the outer side of the second convex ring 142 is abutted against the inner wall of the lower ring body 300, and the sealing performance is further improved.

Optionally, a third ring 143 is further disposed on the top wall of the lower ring body accommodating cavity 150 corresponding to the cover main body 110, and the third ring 143 is located between the first ring 141 and the second ring 142. When the upper cover 100 is covered on the lower ring 300, the end of the lower ring 300 abuts against the end of the third protruding ring 143.

The provision of the third raised ring 143 can further improve the sealability between the upper cover body 100 and the lower ring body 300.

Further, as shown in fig. 4 and 5, the inner sidewall of the cap body 110 is provided with a second female screw 111, and the outer wall of the lower ring body 300 is provided with a second male screw 301 that mates with the second female screw 111;

The second internal thread 111 and the first external thread 130 are threaded in opposite directions.

A limiting part 310 for limiting the cutter 200 so that the cutter 200 can only move upward relative to the lower ring 300 is provided in the lower ring 300;

Initially, the upper cover 100 is detachably covered on the lower ring 300 through the cooperation of the second internal thread 111 and the second external thread 301, and the cutter 200 is arranged in the lower ring 300 and is limited by the limiting part 310;

The bottle cap assembly is opened, the upper cap body 100 is screwed, the bin wall 121 rotates together in the screwing direction of the upper cap body 100, and the cutter 200 is driven to move upwards relative to the upper cap body 100 by the first external thread 130 through the first internal thread 213 due to the opposite screwing directions of the second internal thread 111 and the first external thread 130, so that the sealing film 122 is cut by the cutting member 220.

Further, an end of each first spiral protrusion 131 near the sealing film 122 is a start end 131a, and initially, the start end 131a of each first spiral protrusion 131 is located in the corresponding spiral groove 213 b.

When the starting end 131a of each first spiral protrusion 131 is located in the corresponding spiral groove 213b, it is well ensured that the compartment wall 121 can hook the cutter 200 when the cover 100 is screwed on, so that the cutter 200 moves upwards together.

Taking the illustrated structure as an example, the number of the second spiral ribs 213a is 3, and the number of the corresponding spiral grooves 213b is 3, and the number of the first spiral ribs 131 is 3 accordingly.

Alternatively, as shown in fig. 1 to 3, the cutter 220 includes at least one cutting blade 221 having a pointed cone shape, one end of the baffle ring 240 is connected to the cylindrical body 210 through the connection ring 230, and the other end of the baffle ring 240 is connected to each cutting blade 221.

The sharp-tapered cutter 221 is easier to pierce the sealing film 122, and the specific arrangement of the blade edge of the cutter 221 makes it possible to easily cut the sealing film 122 having high strength and toughness even if it faces the sealing film, without making significant resistance to screwing of the upper cover body 100.

Alternatively, as shown in fig. 1 to 4, the number of the cutting blades 221 is plural, and the plurality of cutting blades 221 pierce the sealing film 122 from plural positions, thereby enabling the sealing film 122 to be cut more quickly when the cap body 100 is screwed on. Taking the illustrated structure of the present application as an example, the number of the cutters 221 is 2.

Optionally, the connection ring 230 is uniformly provided with a plurality of powder leakage holes 231, and a connection block 232 is formed between two adjacent powder leakage holes 231.

The connecting ring 230 is used for connecting the cylindrical main body 210 and the cutting member 220, and a plurality of powder leakage holes 231 are formed in the connecting ring 230, so that powder falling into a gap between the connecting ring 230 and the bin wall 121 after cutting can fall down, and manufacturing materials of the cutter 200 can be reduced, and manufacturing cost can be saved.

Optionally, to ensure the connection stability between the cutting member 220 and the cylindrical main body 210, the number of powder leakage holes 231 is 2 to 4, and for example, the number of powder leakage holes 231 is 3 in the illustrated structure.

Optionally, a circle of limiting ring 260 is disposed on an outer wall of one end of the cutter 200 corresponding to the first opening 211, the inner wall of the limiting portion 310 protrudes inwards to form a circle of limiting boss 312, the inner diameter of the limiting boss 312 is smaller than the outer diameter of the limiting ring 260, and initially, the limiting ring 260 is hung on the limiting boss 312.

The stop collar 260 and stop boss 312 are provided to prevent the cutter 200 from sliding down the lower ring body 300 into the bottle during assembly.

As shown in fig. 1 and 6, optionally, the outer wall of the cutter 200 is provided with a plurality of limit ribs 270 parallel to the axis direction thereof, the inner wall of the limit portion 310 is provided with a plurality of limit grooves 311 parallel to the axis direction thereof, the number of the limit grooves 311 is an integer multiple of the number of the limit ribs 270, the distribution positions of the limit grooves 311 are matched with the distribution positions of the limit ribs 270, each limit rib 270 can be inserted into any limit groove 311, and initially, the limit ribs 270 are inserted into the corresponding limit grooves 311.

The setting of the limit protruding strips 270 and the limit grooves 311 can realize that the cutter 200 is not driven to rotate when the cover body 100 is screwed on.

Optionally, the number of the limiting protruding strips 270 is 4-7, and the number of the limiting grooves 311 is 2-4 times the number of the limiting protruding strips 270. Taking the illustrated structure as an example, the number of the limiting protruding strips 270 is 6, and the number of the limiting grooves 311 is 18.

Generally, the more the number of the limiting ribs 270 and the limiting grooves 311 is, the easier the cutter 200 is to be inserted into the corresponding limiting groove 311 from a proper angle, but the simplified structure is taken into consideration to reduce the manufacturing cost, and the number of the limiting ribs 270 and the limiting grooves 311 is selected to provide convenience for mounting the cutter 200 and save the manufacturing cost.

As shown in fig. 4, the present embodiment further provides a packaging bottle 10, which includes a bottle main body 510 and the bottle cap assembly provided in the present embodiment, and in the packaging bottle 10 provided in the present embodiment, the lower ring 300 is integrally formed with the bottle main body 510 as a bottle mouth 520 to form a bottle body.

Second embodiment

This embodiment provides a bottle cap assembly and a packaging bottle 10 which is similar to the first embodiment and is not mentioned with reference to the first embodiment.

As shown in fig. 7, the bottle cap assembly provided in this embodiment further includes a bottle mouth connecting ring 400, and the bottle mouth connecting ring 400 is connected with the lower ring body 300 and integrally formed. The cap assembly is capped on the mouth 520 of the bottle body by the mouth connecting ring 400. As shown in fig. 8, the bin 120 of the upper cap body 100 of the bottle cap assembly provided in this embodiment is different from the first embodiment in that it protrudes from the cap opening 110a.

As shown in fig. 6 and 7, the packaging bottle 10 provided in this embodiment includes a bottle body and a bottle cap assembly provided in this embodiment, a bottle mouth 520 of the bottle body is in threaded connection with a bottle mouth connecting ring 400, that is, an inner wall of the bottle mouth connecting ring 400 is provided with an inner thread, and an outer wall of the bottle mouth 520 is provided with an outer thread, and connection is achieved through cooperation of the inner thread and the outer thread.

In summary, after the cutter 200 provided in the embodiment of the present utility model is assembled into the packaging bottle 10, since the stopper 214 is disposed at the tail end 202 of the second spiral protruding strip 213a, only when the user screws the upper cover 100 to open the bottle cap assembly, the user continues to apply a slight force when screwing the upper cover 100 to the bottom, so that the first spiral protruding strip 131 passes over the stopper 214, and when screwing the upper cover 100 to cover the lower ring 300, the first spiral protruding strip 131 passes over the stopper 214, so that the cutter 200 can not return to the spiral groove 213b, thereby avoiding returning to the initial position again, and further avoiding falling off of the sealing film 122 when closing the bottle cap assembly again.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The cutter, the upper cover body and the lower ring body are assembled together to form a bottle cap assembly, and the bottle cap assembly is characterized by comprising a cylindrical main body, a baffle ring arranged in the cylindrical main body and a cutting piece connected with the baffle ring, wherein one end of the cylindrical main body is provided with a first opening for allowing a cylindrical bin of the upper cover body to enter, and the opposite end is provided with a second opening for allowing powder in the bin to pass through after being released;

The inner side wall of the cylindrical main body is provided with a first internal thread matched with a first external thread arranged on the outer wall of the storage bin;

the first external thread is formed by at least one first spiral raised line;

the first internal thread is formed by at least one second spiral raised line, all the second spiral raised lines enclose at least one spiral groove, the number of the spiral grooves is greater than or equal to that of the first spiral raised lines, each spiral raised line is provided with at least one spiral groove matched with the first spiral raised line, and when the upper cover body is assembled with the cutter, each first spiral raised line is clamped into the corresponding spiral groove;

The second spiral sand grip is close to first open-ended one end is the head end, the second spiral sand grip is close to second open-ended one end is the tail end, all the tail end of at least one of first spiral sand grip is provided with the stopper, at least a portion of stopper is in on the extending path of helicla flute.

2. The cutter of claim 1, wherein the number of the first spiral raised lines is the same as the number of the spiral grooves, and the first spiral raised lines are snapped into the corresponding spiral grooves in a one-to-one correspondence when the upper cover is assembled with the cutter.

3. A cutter according to claim 1 or 2, wherein a stopper is provided at the trailing end of each of the helical ribs.

4. A bottle cap assembly with a sealing film not easy to fall off, which is characterized by comprising an upper cap body, a lower ring body and the cutter as claimed in any one of claims 1-3;

The upper cover body comprises a cover main body and the storage bin for storing powder, the storage bin comprises a bin wall and a sealing film, one end of the bin wall is connected with the inner top wall of the cover main body, the outer wall of the other end of the bin wall is provided with the first external thread, the end face of the bin wall is connected with the sealing film, and the sealing film is used for sealing the storage bin;

The upper cover body is detachably covered on the lower ring body, the cutter is positioned in the lower ring body, the first internal thread and the first external thread are mutually matched, one end of the storage bin provided with the sealing film stretches into the cylindrical main body, and a gap is reserved between the sealing film and the cutter;

The bottle cap assembly is opened, the upper cover body moves upwards relative to the lower ring body, the first external thread drives the cutter to move upwards relative to the bin through the first internal thread, in the process of moving upwards the cutter, the cylindrical main body is gradually sleeved on the outer wall of the bin through the first opening, the cutting piece cuts the sealing film and gradually enters the bin, the cut sealing film is gradually clamped between the inner wall of the bin and the outer wall of the baffle ring, the bin is opened, and powder stored in the bin is released through the second opening.

5. The bottle cap assembly with the sealing film not easy to fall off according to claim 4, wherein the inner diameter of the storage bin is 0.3-1.0 mm larger than the outer diameter of the cutting piece;

When the bottle cap assembly is opened, the cutting piece cuts the sealing film and gradually enters the storage bin, the cut sealing film is gradually clamped between the inner wall of the storage bin and the outer wall of the baffle ring, and powder stored in the storage bin is released through the second opening.

6. The closure assembly of claim 4, wherein the inner sidewall of the closure body is provided with a second internal thread, and the outer sidewall of the lower ring body is provided with a second external thread that mates with the second internal thread;

the spiral directions of the second internal thread and the first external thread are opposite;

A limiting part for limiting the cutter is arranged in the lower ring body, so that the cutter can only move upwards relative to the lower ring body;

The upper cover body is detachably covered on the lower ring body through the matching of the first internal thread and the first external thread, the cutter is arranged in the lower ring body and limited by the limiting part;

The bottle cap assembly is opened, the upper cover body is screwed, the bin wall rotates along the screwing direction of the upper cover body, the first external thread drives the cutter to move upwards relative to the upper cover body through the first internal thread, and the upward moving speed of the cutter is greater than that of the upper cover body, so that the cutting piece cuts the sealing film.

7. The bottle cap assembly with the sealing film not easy to fall off according to claim 6, wherein a circle of limiting rings are arranged on the outer wall of one end of the cutter corresponding to the first opening, the inner wall of the limiting part protrudes inwards to form an annular boss, the inner diameter of the annular boss is smaller than the outer diameter of the limiting rings, and the limiting rings are hung on the annular boss in the initial process;

And/or, the outer wall of the cutter is provided with a plurality of limit convex strips parallel to the axis direction of the cutter, the inner wall of the limit part is provided with a plurality of limit grooves parallel to the axis direction of the cutter, the number of the limit grooves is an integral multiple of the number of the limit convex strips, the distribution positions of the limit grooves are matched with the distribution positions of the limit convex strips, each limit convex strip can be inserted into any limit groove, and initially, the limit convex strips are inserted into the corresponding limit grooves.

8. The closure assembly of claim 4, wherein the closure assembly further comprises a finish attachment ring for threaded connection with a finish of a bottle;

the bottleneck connecting ring is connected with the lower ring body into a whole.

9. A packaging bottle, characterized by comprising a bottle body and the bottle cap assembly according to any one of claims 4 to 7;

The lower ring body is integrally formed with the bottle body as a bottle mouth to form a bottle body.

10. A packaging bottle comprising a bottle body and the bottle cap assembly of claim 8;

the bottle mouth of the bottle body is in threaded connection with the bottle mouth connecting ring.