Upper cap body easy to demould, bottle cap assembly and packaging bottle

Abstract

The utility model relates to the field of packaging bottles, and provides an upper cap body easy to demould, a bottle cap assembly and a packaging bottle. The upper cover body comprises a cover main body and a cylindrical stock bin for storing powder; the stock 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 body, the other end of the bin wall is connected with the sealing film, and the sealing film is used for sealing the stock bin; a first external thread is arranged at the position, close to the sealing film, of the outer wall of the bin; the first external thread is composed of at least one first spiral protruding strip, and the section, parallel to the axis of the upper cover body, of the surface of each first spiral protruding strip is provided with a first upper bevel edge and a first lower bevel edge. The included angle between the first upper bevel edge and the axis of the upper cover body is a first included angle (30-60 degrees), and the included angle between the first lower bevel edge and the axis of the upper cover body is a second included angle (60-90 degrees). Due to the specific arrangement of the external threads of the upper cap body, demolding of the upper cap body is easy, the cutter can be better hung outside the stock bin, and stable work of the bottle cap assembly is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of packaging bottles, in particular to an easily demouldable upper cover body, a bottle cover assembly and a packaging bottle. Background Art

[0002] At present, ready-mixed beverages on the market are popular among consumers due to their novel drinking methods. The packaging bottle of ready-mixed beverages is usually composed of a bottle cap, a cutter and a bottle body. The bottle cap includes a silo, which contains solid powder and is sealed by a sealing film. When the bottle cap is twisted open, the sealing film is cut open by the cutter so that the solid powder falls into the liquid in the bottle body.

[0003] The upper cover is a component of the bottle cap assembly. During the manufacturing process, demoulding is usually done from top to bottom. Since the upper cover is provided with threads and other structures, these structures will cause certain resistance to demoulding, which will affect the demoulding efficiency or cause the risk of thread deformation. If the upper cover can be made easier to demould, it will be a means to improve the production efficiency of the upper cover and also a means to reduce the risk of thread deformation. Since the upper cover and the cutter are matched through threads, how to ensure that the two have good matching stability is also a problem that the upper cover or bottle cap assembly needs to pay attention to.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The utility model aims to provide an upper cover body, a bottle cover assembly and a packaging bottle which are easy to demould.

[0006] The embodiment of the utility model is achieved as follows:

[0007] In a first aspect, the utility model provides an upper cover body, which is used to be assembled with a cutter and a lower ring body to form a bottle cap assembly, and the upper cover body includes a cover body and a cylindrical silo for storing powder;

[0008] The silo includes a silo wall and a sealing film, one end of the silo wall is connected to the inner top wall of the cover body, and the other end of the silo wall is connected to the sealing film, and the sealing film is used to seal the silo;

[0009] A first external thread is provided on the outer wall of the silo near the sealing film;

[0010] The first external thread is composed of at least one first spiral convex strip, and the surface of each first spiral convex strip forms a figure on a cross section parallel to the axis of the upper cover body consisting of a first upper bevel, a first transition edge and a first lower bevel connected in sequence;

[0011] The angle between the first upper bevel and the axis of the upper cover body is a first angle, the first angle is 30-60°, the angle between the first lower bevel and the axis of the upper cover body is a second angle, the second angle is 60-90°;

[0012] During assembly, the first external thread cooperates with the first internal thread on the cutter to achieve threaded connection between the upper cover body and the cutter.

[0013] In an optional embodiment, the inner side wall of the cover body is provided with a second internal thread;

[0014] The second internal thread is composed of at least one second spiral convex strip, and the surface of each second spiral convex strip forms a figure on a cross section parallel to the axis of the upper cover body consisting of a second upper bevel, a second transition edge and a second lower bevel connected in sequence;

[0015] The angle between the second upper bevel and the axis of the upper cover body is a third angle, which is 30-60°. The angle between the second lower bevel and the axis of the upper cover body is a fourth angle, which is 60-90°.

[0016] In an optional embodiment, a lower ring body accommodating cavity is formed between the cover body and the silo; an insert ring is arranged in the lower ring body accommodating cavity, and one end of the insert ring is connected to the top wall of the cover body;

[0017] When the upper cover body and the lower ring body are assembled, the outer wall of the insert ring abuts against the inner wall of the lower ring body.

[0018] In an optional embodiment, a first convex ring is further provided in the lower ring body accommodating cavity, and the insert ring is located inside the ring of the first convex ring;

[0019] When the upper cover body and the lower ring body are assembled, the lower ring body is clamped between the first convex ring and the insert ring.

[0020] In an optional embodiment, a second convex ring is further provided in the lower ring body accommodating cavity, and the second convex ring is located between the insertion ring and the first convex ring;

[0021] When the upper cover body and the lower ring body are assembled, the end of the second convex ring abuts against the end of the lower ring body.

[0022] In a second aspect, the utility model provides a bottle cap assembly, comprising an upper cap body, a cutter and a lower ring body as described in any one of the aforementioned embodiments;

[0023] The cutter comprises a cylindrical body and an annular cutting member arranged in the cylindrical body, wherein one end of the cylindrical body has a first opening for the hopper to enter, and the opposite end has a second opening for the released powder to pass through;

[0024] The inner wall of the cylindrical body is provided with a first internal thread matching the first external thread;

[0025] The inner side wall of the cover 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 matching the second internal thread;

[0026] The first external thread and the second internal thread have opposite spiral directions;

[0027] Initially, the upper cover body is arranged on the lower ring body through the cooperation of the second internal thread and the second external thread, the cutter is located in the lower ring body, the first external thread and the first internal thread are arranged in cooperation with each other, one end of the silo provided with the sealing film extends into the cylindrical body, and there is a gap between the sealing film and the annular cutting piece;

[0028] The upper cover body is twisted open to move upward relative to the lower ring body. Under the cooperation of the first external thread and the first internal thread, the cutter moves upward relative to the silo. During the upward movement of the cutter, the cylindrical body is gradually sleeved on the outer wall of the silo through the first opening, and the annular cutting member cuts the sealing film and gradually enters into the silo. The silo is opened, and the powder stored in the silo is released through the second opening.

[0029] In an optional embodiment, the first internal thread is composed of at least one third spiral convex strip, and the surface of each third spiral convex strip forms a pattern on a cross section parallel to the axis of the upper cover body consisting of a third upper bevel, a third transition edge and a third lower bevel connected in sequence;

[0030] The angle between the third upper bevel and the axis of the upper cover body is the fifth angle, which is 30-60°. The angle between the third lower bevel and the axis of the upper cover body is the sixth angle, which is 60-90°.

[0031] In an optional embodiment, a circle of limiting ring is provided on the outer wall of one end of the cutter corresponding to the first opening, and the inner wall of the lower ring body protrudes inward to form an annular boss, the inner diameter of the annular boss is smaller than the outer diameter of the limiting ring, and initially, the limiting ring is hung on the annular boss;

[0032] And / or, the outer wall of the cutter is provided with a plurality of limiting ridges parallel to its axial direction, and the inner wall of the lower ring body is provided with a plurality of limiting grooves parallel to its axial direction, the number of the plurality of limiting grooves is an integer multiple of the number of the limiting ridges, the distribution positions of the plurality of limiting grooves match the distribution positions of the plurality of limiting ridges, and each limiting ridge can be inserted into any limiting groove; initially, the plurality of limiting ridges are inserted into the corresponding limiting grooves.

[0033] In a third aspect, the utility model provides a packaging bottle, comprising a bottle body and a bottle cap assembly as described in any one of the aforementioned embodiments;

[0034] The lower ring body is used as a bottle mouth and is integrally formed with the bottle body to form a bottle body.

[0035] In a fourth aspect, the utility model provides a packaging bottle, comprising a bottle body and a bottle cap assembly as described in any one of the aforementioned embodiments;

[0036] The bottle cap assembly also includes a bottle mouth connecting ring, which is used to be threadedly connected to the bottle mouth of the bottle body, and the bottle mouth connecting ring is connected to the lower ring body and is integrally formed;

[0037] The bottle mouth of the bottle body is threadedly connected with the bottle mouth connecting ring.

[0038] The beneficial effects of the embodiments of the utility model are:

[0039] The upper cover body provided by the utility model is usually demolded from top to bottom during demoulding. Due to the specific structure of the first external thread, especially the angle setting between the upper bevel of the cross section and the axis, the upper cover body is easier to demould, and the demoulding process is not likely to cause deformation and damage of the thread, thereby making the manufacturing of the upper cover body have a higher yield rate; due to the angle setting between the upper bevel and the lower bevel on the cross section and the axis, the first external thread can better cooperate with the first internal thread of the cutter, so that the cutter can be better hung on the first external thread through the first internal thread, thereby ensuring that the bottle cap assembly can stably and normally operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A cross-sectional view of a bottle cap assembly provided in the first embodiment of the utility model;

[0042] Figure 2 for Figure 1 A magnified image of area A;

[0043] Figure 3 for Figure 1 Enlarged view of area B;

[0044] Figure 4 A schematic diagram of the structure of the upper cover body provided in the first embodiment of the utility model;

[0045] Figure 5 It is a schematic diagram of the structure of the cutter in the first perspective;

[0046] Figure 6 is a schematic diagram of the structure of the cutter at a second viewing angle;

[0047] Figure 7 is a schematic diagram of the structure of the cutter in the third perspective;

[0048] Figure 8 is a top view of the lower ring;

[0049] Fig. 9 A structural cross-sectional view of a packaging bottle provided in a third embodiment of the utility model;

[0050] Fig.10 A structural cross-sectional view of an upper cover body provided in a second embodiment of the utility model;

[0051] Fig.11 This is a structural sectional view of a packaging bottle provided in the fourth embodiment of the utility model.

[0052] Icon: 10-Bottle cap assembly;

[0053] 100-upper cover body; 110-cover body; 110a-cover opening; 111-second internal thread; 112-second upper bevel; 113-second transition edge; 114-second lower bevel; c-third angle; d-fourth angle; 120-bin; 121-bin wall; 122-sealing film; 130-first external thread; 131-first spiral convex strip; 131a-starting end; 132-first upper bevel; 133-first transition edge; 134-first lower bevel; a-first angle; b-second angle; 141-insertion ring; 142-first convex ring; 143-second convex ring; 150-lower ring body accommodating chamber;

[0054] 200-cutter; 210-cylindrical body; 211-first opening; 212-second opening; 213-first internal thread; 213a-third spiral convex strip; 213b-spiral groove; 214-third upper bevel; 215-third transition edge; 216-third lower bevel; e-fifth angle; f-sixth angle; 220-annular cutting member; 221-cutting knife; 230-connecting ring; 231-powder leakage hole; 232-connecting block; 240-ring body; 260-limiting ring; 270-limiting convex strip;

[0055] 300-lower ring body; 301-second external thread; 302-fourth upper bevel; 303-fourth transition edge; 304-fourth lower bevel; g-seventh angle; h-eighth angle; 311-limiting groove; 312-limiting boss;

[0056] 400-bottle mouth connecting ring;

[0057] 510-bottle body; 520-bottle mouth. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0059] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0061] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0062] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0063] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] First embodiment

[0065] Please refer to Figure 1 , this embodiment provides an upper cover body 100 and a bottle cap assembly 10.

[0066] The bottle cap assembly 10 provided in this embodiment includes the upper cover body 100, the cutter 200 and the lower ring body 300 provided in this embodiment.

[0067] like Figure 1 and Figure 4 As shown, the upper cover body 100 provided in this embodiment includes a cover body 110 and a cylindrical silo 120 for storing powder;

[0068] The material bin 120 includes a bin wall 121 and a sealing film 122. One end of the bin wall 121 is connected to the inner top wall of the cover body 110, and the other end of the bin wall 121 is connected to the sealing film 122. The sealing film 122 is used to seal the material bin 120.

[0069] A first external thread 130 is provided on the outer wall of the silo 120 near the sealing film 122;

[0070] The first external thread 130 is composed of at least one first spiral ridge 131, and the surface of each first spiral ridge 131 forms a pattern on a cross section parallel to the axis of the upper cover body 100, which is composed of a first upper bevel 132, a first transition edge 133 and a first lower bevel 134 connected in sequence;

[0071] like Figure 2 As shown, the angle between the first upper bevel 132 and the axis of the upper cover body 100 is a first angle a, and the first angle a is 30 to 60° (for example, 30°, 45° or 60°). The angle between the first lower bevel 134 and the axis of the upper cover body 100 is a second angle b, and the second angle b is 60 to 90° (for example, 60°, 75° or 90°).

[0072] like Figure 1 As shown, the cutter 200 includes a cylindrical body 210 and an annular cutting member 220 disposed in the cylindrical body 210. One end of the cylindrical body 210 has a first opening 211 for allowing the silo 120 to enter, and the opposite end has a second opening 212 for allowing the released powder to pass through; the inner wall of the cylindrical body 210 is provided with a first internal thread 213 that cooperates with the first external thread 130.

[0073] The inner wall of the cover body 110 is provided with a second internal thread 111 , and the outer wall of the lower ring body 300 is provided with a second external thread 301 matching the second internal thread 111 ; the spiral directions of the first external thread 130 and the second internal thread 111 are opposite.

[0074] Initially, the upper cover 100 is covered on the lower ring body 300 by the second internal thread 111 and the second external thread 301, the cutter 200 is located in the lower ring body 300, the first external thread 130 and the first internal thread 213 are arranged in cooperation with each other, and one end of the silo 120 provided with the sealing film 122 extends into the cylindrical body 210, and there is a gap between the sealing film 122 and the annular cutting member 220;

[0075] The upper cover body 100 is screwed open to move upward relative to the lower ring body 300. Under the cooperation of the first external thread 130 and the first internal thread 213, the cutter 200 moves upward relative to the silo 120. During the upward movement of the cutter 200, the cylindrical body 210 is gradually sleeved on the outer wall of the silo 120 through the first opening 211, and the annular cutting member 220 cuts the sealing film 122 and gradually enters into the silo 120. The silo 120 is opened, and the powder stored in the silo 120 is released through the second opening 212.

[0076] The upper cover body 100 provided in the present embodiment is usually demolded from top to bottom. Due to the specific structure of the first external thread 130, especially the angle setting between the upper bevel on the cross section and the axis, the upper cover body 100 is easier to demold, and the demolding process is not likely to cause deformation and damage of the thread, thereby making the manufacture of the upper cover body 100 have a higher yield rate; due to the angle setting between the upper bevel and the lower bevel on the cross section and the axis, the first external thread 130 can better cooperate with the first internal thread 213, so that the cutter 200 can be better hung on the first external thread 130 through the first internal thread 213, thereby ensuring that the bottle cap assembly 10 can work stably and normally.

[0077] Optionally, the ends of the first transition edge 133 connected to the first upper bevel 132 and the first lower bevel 134 are all arc-shaped, which is better for demoulding and allows the internal thread and the external thread to fit better. It should be noted that the second transition edge 113, the third transition edge 215 and the fourth transition edge 303 mentioned below have the same structure as the first transition edge 133 here.

[0078] Alternatively, if Figure 1 and Figure 3 As shown, the second internal thread 111 is composed of at least one second spiral convex strip, and the surface of each second spiral convex strip forms a pattern on a cross section parallel to the axis of the upper cover body 100, which is composed of a second upper bevel 112, a second transition edge 113 and a second lower bevel 114 connected in sequence;

[0079] The angle between the second upper bevel 112 and the axis of the upper cover body 100 is a third angle c, and the third angle c is 30~60° (for example, 30°, 45° or 60°). The angle between the second lower bevel 114 and the axis of the upper cover body 100 is a fourth angle d, and the fourth angle d is 60~90° (for example, 60°, 75° or 90°).

[0080] The specific configuration of the second internal thread 111 is also to ensure that the thread is not easily deformed or damaged during demoulding.

[0081] Alternatively, if Figure 1 As shown, a lower ring body accommodating cavity 150 is formed between the cover body 110 and the silo 120, and an insertion ring 141 is arranged in the lower ring body accommodating cavity 150, and one end of the insertion ring 141 is connected to the top wall of the cover body 110; when the upper cover body 100 and the lower ring body 300 are assembled, the outer wall of the insertion ring 141 abuts against the inner wall of the lower ring body 300.

[0082] The provision of the insert ring 141 can enhance the sealing performance of the bottle cap assembly 10 .

[0083] Alternatively, if Figure 4 As shown, in order to increase the friction between the hand and the upper cover body 100 when twisting, the outer wall of the cover body 110 can be provided with an uneven structure. Preferably, in order to meet market demand, these uneven structures can be patterns.

[0084] Alternatively, if Figure 5 and Figure 6 As shown, the annular cutting member 220 includes a ring body 240 and at least one pointed cone-shaped cutting blade 221 ; one end of the ring body 240 is connected to the cylindrical body 210 through a connecting ring 230 , and the other end of the ring body 240 is connected to each cutting blade 221 .

[0085] The pointed cone-shaped cutting knife 221 can more easily pierce the sealing film 122 , and the specific configuration of the cutting knife 221 blade enables it to easily cut through even the sealing film 122 with high strength and toughness, without creating obvious resistance to the twisting of the upper cover body 100 .

[0086] Optionally, there are multiple cutting knives 221, and the multiple cutting knives 221 pierce the sealing film 122 from multiple positions, so that the sealing film 122 can be cut more quickly when the cover 100 is screwed on. Taking the illustrated structure of the present application as an example, the number of the cutting knives 221 is two.

[0087] Optionally, a plurality of powder leakage holes 231 are evenly formed on the connection ring 230 , and a connection block 232 is formed between two adjacent powder leakage holes 231 .

[0088] The connecting ring 230 is used to connect the cylindrical body 210 and the annular cutting piece 220. A plurality of powder leakage holes 231 are arranged on the connecting ring 230 so that the powder falling into the gap between the connecting ring 230 and the bin wall 121 after cutting can fall out. On the other hand, it can also reduce the manufacturing materials of the cutter 200 and save manufacturing costs.

[0089] Optionally, in order to ensure the stability of the connection between the annular cutting member 220 and the cylindrical body 210, the number of the powder leakage holes 231 is 2 to 4. Taking the structure shown in the figure as an example, the number of the powder leakage holes 231 is 3.

[0090] Alternatively, if Figure 1 and Figure 2 As shown, the first internal thread 213 of the inner wall of the cylindrical body 210 is composed of at least one third spiral ridge 213a, and the surface of each third spiral ridge 213a forms a pattern on a cross section parallel to the axis of the upper cover body 100, which is composed of a third upper bevel 214, a third transition edge 215 and a third lower bevel 216 connected in sequence;

[0091] The angle between the third upper bevel 214 and the axis of the upper cover body 100 is the fifth angle e, and the fifth angle e is 30~60° (for example, 30°, 45° or 60°). The angle between the third lower bevel 216 and the axis of the upper cover body 100 is the sixth angle f, and the sixth angle f is 60~90° (for example, 60°, 75° or 90°).

[0092] The upper and lower bevels of the cross section of the third spiral ridge 213a are opposite to the upper and lower bevels of the cross section of the first spiral ridge 131, so that a better matching relationship can be formed, ensuring that the cutter 200 can be better hung on the first outer thread 130 through the first inner thread 213, thereby ensuring that the bottle cap assembly 10 can stably and normally operate.

[0093] Alternatively, if Figure 1 As shown, all the third spiral ridges 213a surround at least one spiral groove 213b, and the at least one spiral groove 213b matches with all the first spiral ridges 131 in a one-to-one correspondence;

[0094] One end of each first spiral convex strip 131 close to the sealing film 122 is a starting end 131 a . Initially, the starting end 131 a of each first spiral convex strip 131 is located in the corresponding spiral groove 213 b .

[0095] Initially, the starting end 131a of each first spiral ridge 131 is located in the corresponding spiral groove 213b, so that when the cover body 100 is screwed on, the bin wall 121 can hook the cutter 200 so that the cutter 200 moves upward together.

[0096] Taking the structure shown in the figure as an example, the number of the third spiral ridges 213a is 3, and the number of the corresponding spiral grooves 213b is 3. Correspondingly, the number of the first spiral ridges 131 is also 3.

[0097] Furthermore, the first external thread 130 has a first starting point, a breakaway point, and a first end point, and the first internal thread 213 has a second starting point and a second end point;

[0098] Initially, the position of the first starting point corresponds to the position of the second starting point;

[0099] When the upper cover 100 is unscrewed, the position of the second starting point corresponds to the position of the first end point;

[0100] In the process of screwing the upper cover body 100 onto the lower ring body 300, the second starting point moves along the spiral direction of the first external thread 130. When the second starting point moves to correspond to the disengagement point, the first spiral ridge 131 completely disengages from the spiral groove 213b. Continue to screw the upper cover body 100, and the warehouse wall 121 moves downward. As the warehouse wall 121 moves downward, the starting end 131a of the first spiral ridge 131 gradually shows a trend of being pressed into the spiral groove 213b. When the second starting point is screwed to a position corresponding to the first starting point, the starting end 131a of the first spiral ridge 131 will be stuck in the spiral groove 213b again.

[0101] When the starting end 131a of the first spiral ridge 131 is inserted into the spiral groove 213b again, the cutter 200 will slightly jump up, and the user can hear a sound similar to a "click".

[0102] Specifically, in order to achieve that after the first spiral ridge 131 is completely disengaged from the spiral groove 213b, the starting end 131a can be again inserted into the spiral groove 213b during the process of screwing and pressing the upper cover body 100, the conditions that need to be met may be, for example: at least one of the third spiral ridge 213a and the first spiral ridge 131 is made of a material that can be deformed and can immediately recover after deformation; or, at least one of the warehouse wall 121 and the cylindrical body 210 is made of a material that can be deformed and can immediately recover after deformation.

[0103] Optionally, the third spiral ridge 213a and / or the first spiral ridge 131 are made of HDPE (high-density polyethylene) or PP (co-polypropylene); and / or the bin wall 121 and / or the cylindrical body 210 are made of HDPE (high-density polyethylene) or PP (co-polypropylene).

[0104] When the material of the third spiral ridge 213a, the first spiral ridge 131, the bin wall 121 or the cylindrical body 210 is the above-mentioned material, it can be achieved that when the upper cover body 100 is screwed to the position where the second starting point corresponds to the position where the first starting point is (that is, the upper cover body 100 is screwed to the bottom), the starting section of the second spiral protrusion is again stuck in the spiral groove 213b.

[0105] Alternatively, if Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the outer wall of the end of the cutter 200 corresponding to the first opening 211 is provided with a circle of limiting ring 260, and the inner wall of the lower ring body 300 protrudes inward to form a circle of limiting boss 312, and the inner diameter of the limiting boss 312 is smaller than the outer diameter of the limiting ring 260. Initially, the limiting ring 260 is hung on the limiting boss 312.

[0106] The arrangement of the limiting ring 260 and the limiting boss 312 can prevent the cutter 200 from sliding downward from the lower ring body 300 into the bottle body during assembly.

[0107] like Figure 5 Figure 6 and Figure 8 As shown, optionally, the outer wall of the cutter 200 is provided with a plurality of limiting ridges 270 parallel to its axial direction, and the inner wall of the limiting boss 312 is provided with a plurality of limiting grooves 311 parallel to its axial direction, the number of the plurality of limiting grooves 311 is an integer multiple of the number of the limiting ridges 270, the distribution positions of the plurality of limiting grooves 311 match the distribution positions of the plurality of limiting ridges 270, and each limiting ridge 270 can be inserted into any limiting groove 311; initially, the plurality of limiting ridges 270 are inserted into the corresponding limiting grooves 311.

[0108] The arrangement of the limiting convex strip 270 and the limiting groove 311 can ensure that the cutter 200 will not be driven to rotate when the cover body 100 is screwed on.

[0109] Optionally, the number of the limiting ridges 270 is 4 to 7, and the number of the limiting grooves 311 is 2 to 4 times the number of the limiting ridges 270. Taking the structure shown in the figure as an example, the number of the limiting ridges 270 is 6, and the number of the limiting grooves 311 is 18.

[0110] Generally speaking, the more limiting ridges 270 and limiting grooves 311 there are, the easier it is for the cutter 200 to be inserted into the corresponding limiting groove 311 from a suitable angle. However, taking into account the simplification of the structure and the reduction of manufacturing costs, the above-mentioned number of settings can take into account both the convenience of installation of the cutter 200 and the saving of manufacturing costs.

[0111] Furthermore, if Figure 1 and Figure 3As shown, the outer wall of the lower ring body 300 is provided with a second outer thread 301 , and the second outer thread 301 matches with the second inner thread 111 , so that the upper cover body 100 is covered on the lower ring body 300 .

[0112] The second external thread 301 is composed of at least one fourth spiral convex strip, and the surface of each fourth spiral convex strip forms a pattern on a cross section parallel to the axis of the upper cover body 100, which is composed of a fourth upper bevel 302, a fourth transition edge 303 and a fourth lower bevel 304 connected in sequence;

[0113] The angle between the fourth upper bevel 302 and the axis of the upper cover body 100 is the seventh angle g, and the seventh angle g is 30~60° (for example, 30°, 45° or 60°). The angle between the fourth lower bevel 304 and the axis of the upper cover body 100 is the eighth angle h, and the eighth angle h is 60~90° (for example, 60°, 75° or 90°).

[0114] The lower ring body 300 is also demoulded from top to bottom, and the specific angle setting of the second external thread 301 can also better ensure that the thread is not deformed during demoulding.

[0115] Second embodiment

[0116] This embodiment provides an upper cover body 100 and a bottle cap assembly 10, which are basically the same as the first embodiment. For matters not mentioned, please refer to the first embodiment.

[0117] like Fig.11 As shown, the upper cover body 100 provided in this embodiment has a first convex ring 142 disposed in the lower ring body accommodating cavity 150, and the insert ring 141 is located inside the ring of the first convex ring 142; when the upper cover body 100 and the lower ring body 300 are assembled, the lower ring body 300 is clamped between the first convex ring 142 and the insert ring 141.

[0118] The provision of the first protruding ring 142 can further enhance the sealing performance of the bottle cap assembly 10 .

[0119] Optionally, a second convex ring 143 is further provided in the lower ring body accommodating cavity 150 , and the second convex ring 143 is located between the insertion ring 141 and the first convex ring 142 ; when the upper cover body 100 and the lower ring body 300 are assembled, the end of the second convex ring 143 abuts against the end of the lower ring body 300 .

[0120] The provision of the second protruding ring 143 can further enhance the sealing performance of the bottle cap assembly 10 .

[0121] Alternatively, if Fig.10 and Fig.11 As shown, the cover body 110 has a cover opening 110 a , and the cover body 110 is covered on the lower ring body 300 through the cover opening 110 a , and the material bin 120 is located in the cover body 110 and does not extend out of the cover opening 110 a .

[0122] Taking the packaging bottle as a beverage packaging bottle as an example, the material bin 120 does not extend out of the cover opening 110a, that is, the bottom of the material bin 120 is not lower than the bottom edge of the cover body 110. Since some drinkers have the habit of opening the upper cover body 100 and placing the upper cover body 100 on the desktop at will, if the material bin 120 extends out of the cover opening 110a, the material bin 120 is easily contaminated by contact with the desktop. Generally speaking, the beverage in the bottle body will not be drunk all at once after the upper cover body 100 is opened. When the upper cover body 100 is covered on the lower ring body 300 again, the material bin 120 will bring pollutants into the bottle body, which is not good for human health when drinking again. Therefore, making the material bin 120 not extend out of the cover opening 110a can well avoid the above problems.

[0123] The bottle cap assembly 10 provided in this embodiment includes the upper cover body 100 provided in this embodiment.

[0124] Third embodiment

[0125] like Fig. 9 As shown, this embodiment provides a packaging bottle, including a bottle body and the bottle cap assembly 10 provided in the first embodiment.

[0126] In this embodiment, the bottle cap assembly 10 also includes a bottle mouth connecting ring 400, which is used to be threadedly connected to the bottle mouth 520 of the bottle body; the bottle mouth connecting ring 400 is connected to the lower ring body 300 to form an integrally formed lower cover body of the bottle cap assembly 10; the bottle mouth 520 of the bottle body is threadedly connected to the bottle mouth connecting ring 400.

[0127] Fourth embodiment

[0128] like Fig.11 As shown, this embodiment provides a packaging bottle, including a bottle body and the bottle cap assembly 10 provided in the above second embodiment.

[0129] The packaging bottle provided in this embodiment includes a bottle body 510 and a bottle cap assembly 10 provided in this embodiment. In this embodiment, the lower ring body 300 is formed integrally with the bottle body 510 as a bottle mouth 520 to form a bottle body.

[0130] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An upper cover body that is easy to demould, the upper cover body is used to be assembled with a cutter and a lower ring body to form a bottle cap assembly, characterized in that: The upper cover body comprises a cover body and a cylindrical silo for storing powder; The material bin comprises a bin wall and a sealing film, one end of the bin wall is connected to the inner top wall of the cover body, and the other end of the bin wall is connected to the sealing film, and the sealing film is used to seal the material bin; A first external thread is provided at a position of the outer wall of the silo close to the sealing film; The first external thread is composed of at least one first spiral convex strip, and the surface of each first spiral convex strip forms a figure on a cross section parallel to the axis of the upper cover body consisting of a first upper bevel, a first transition edge and a first lower bevel connected in sequence; The angle between the first upper bevel and the axis of the upper cover body is a first angle, the first angle is 30-60°, the angle between the first lower bevel and the axis of the upper cover body is a second angle, the second angle is 60-90°; During assembly, the first external thread cooperates with the first internal thread on the cutter to achieve threaded connection between the upper cover and the cutter.

2. The upper cover according to claim 1, characterized in that: The inner side wall of the cover body is provided with a second internal thread; The second internal thread is composed of at least one second spiral convex strip, and the surface of each second spiral convex strip forms a figure on a cross section parallel to the axis of the upper cover body consisting of a second upper bevel, a second transition edge and a second lower bevel connected in sequence; The angle between the second upper bevel and the axis of the upper cover body is a third angle, and the third angle is 30-60°. The angle between the second lower bevel and the axis of the upper cover body is a fourth angle, and the fourth angle is 60-90°.

3. The upper cover according to claim 1, characterized in that: A lower ring body accommodating cavity is formed between the cover body and the silo; an insert ring is arranged in the lower ring body accommodating cavity, and one end of the insert ring is connected to the top wall of the cover body; When the upper cover body and the lower ring body are assembled, the outer wall of the insert ring abuts against the inner wall of the lower ring body.

4. The upper cover according to claim 3, characterized in that: A first convex ring is also arranged in the lower ring body accommodating cavity, and the insert ring is located inside the ring of the first convex ring; When the upper cover body and the lower ring body are assembled, the lower ring body is clamped between the first convex ring and the insert ring.

5. The upper cover according to claim 4, characterized in that: A second convex ring is also arranged in the lower ring body accommodating cavity, and the second convex ring is located between the insert ring and the first convex ring; When the upper cover body and the lower ring body are assembled, the end of the second convex ring abuts against the end of the lower ring body.

6. A bottle cap assembly, characterized in that: It comprises the upper cover body according to any one of claims 1 to 5, the cutter and the lower ring body; The cutter comprises a cylindrical body and an annular cutting member disposed in the cylindrical body, wherein one end of the cylindrical body has a first opening for the silo to enter, and the opposite end has a second opening for the released powder to pass through; The inner wall of the cylindrical body is provided with the first internal thread matched with the first external thread; The inner side wall of the cover 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 matching the second internal thread; The spiral directions of the first external thread and the second internal thread are opposite; Initially, the upper cover is mounted on the lower ring body through the cooperation of the second internal thread and the second external thread, the cutter is located inside the lower ring body, the first external thread and the first internal thread cooperate with each other, one end of the silo provided with the sealing film extends into the cylindrical body, and there is a gap between the sealing film and the annular cutting piece; The upper cover body is twisted open to move upward relative to the lower ring body. Under the cooperation of the first external thread and the first internal thread, the cutter moves upward relative to the silo. During the upward movement of the cutter, the cylindrical body is gradually sleeved on the outer wall of the silo through the first opening, the annular cutting member cuts the sealing film and gradually enters into the silo. The silo is opened, and the powder stored in the silo is released through the second opening.

7. The bottle cap assembly according to claim 6, characterized in that: The first internal thread is composed of at least one third spiral convex strip, and the surface of each third spiral convex strip forms a figure on a cross section parallel to the axis of the upper cover body consisting of a third upper bevel, a third transition edge and a third lower bevel connected in sequence; The angle between the third upper bevel and the axis of the upper cover body is a fifth angle, and the fifth angle is 30-60°. The angle between the third lower bevel and the axis of the upper cover body is a sixth angle, and the sixth angle is 60-90°.

8. The bottle cap assembly according to claim 6, characterized in that: The outer wall of one end of the cutter corresponding to the first opening is provided with a circle of limiting ring, the inner wall of the lower ring body protrudes inward to form an annular boss, the inner diameter of the annular boss is smaller than the outer diameter of the limiting ring, and initially, the limiting ring is hung on the annular boss; And / or, the outer wall of the cutter is provided with a plurality of limiting ridges parallel to its axial direction, and the inner wall of the lower ring body is provided with a plurality of limiting grooves parallel to its axial direction, the number of the plurality of limiting grooves is an integer multiple of the number of the limiting ridges, the distribution positions of the plurality of limiting grooves match the distribution positions of the plurality of limiting ridges, and each of the limiting ridges can be inserted into any of the limiting grooves; initially, the plurality of limiting ridges are inserted into the corresponding limiting grooves.

9. A packaging bottle, characterized in that: It comprises a bottle body and a bottle cap assembly as claimed in any one of claims 6 to 8; The lower ring body serves as a bottle mouth and is integrally formed with the bottle body to form a bottle body.

10. A packaging bottle, characterized in that: It comprises a bottle body and a bottle cap assembly as claimed in any one of claims 6 to 8; The bottle cap assembly further comprises a bottle mouth connecting ring, the bottle mouth connecting ring is used to be threadedly connected to the bottle mouth of the bottle body, and the bottle mouth connecting ring is connected with the lower ring body and formed into an integral body; The bottle mouth of the bottle body is threadedly connected to the bottle mouth connecting ring.

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