Plastic reduction type packaging flip cover structure

Abstract

The utility model discloses a plastic reduction type packaging flip cover structure, and relates to the technical field of packaging pipe structures. A protruding annular table is arranged at the top of the packaging hose, and a pipe opening communicated with an inner cavity of the packaging hose is formed in the center of the annular table. The cover lifting structure comprises an upper cover and a lower cover; a first limiting groove is formed in the outer side wall of the ring winding table; a first limiting convex strip is arranged on the inner side wall of the lower cover; the lower cover is arranged on the outer side of the annular table in a sleeving mode. The first limiting grooves are matched with the first limiting protruding strips in a buckled mode. The lower cover is provided with a discharge hole which is communicated to the inner cavity of the packaging hose through a pipe orifice; the upper cover is provided with a protruding insertion part, and a protruding interference part is arranged around the outer side wall of the insertion part. The radial size of the interference part is greater than that of the discharge hole; and when the upper cover is closed relative to the lower cover, the insertion part is in close fit with the discharge hole through the interference part. Compared with the prior art, the lifting cover structure can be reduced by about one third of the height, materials are saved, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging tube structures, in particular to a plastic-reducing packaging cover structure. Background Art

[0002] In the field of modern packaging, hoses are a common packaging material and are widely used in many industries such as food, cosmetics, and medicine. The convenience and sealing properties of hoses make them an ideal packaging choice for liquid or semi-solid substances.

[0003] In order to ensure the convenience of hose packaging and the sealing of the contents, the design of the hose cover is crucial. In the prior art, in order to solve the problem that the traditional screw cover or buckle cover is not convenient to open, many hose manufacturers choose to adopt a flip cover design. The flip cover provides a simpler way to open, and the user can open the cover by a simple flipping action, thereby improving the convenience of use. For example, the patent document with the announcement number CN212830146U provides a flip cover type hose container, including a hose and a flip cover assembly covered on the hose pipe mouth, the flip cover assembly includes an upper cover and a lower cover, the lower cover can be detachably covered on the pipe mouth of the hose, the lower cover is provided with a discharge port connected to the hose pipe mouth, the upper cover and the lower cover are connected by a buckle clamping mechanism, and the upper cover can be rotated around the buckle clamping mechanism to open or close the discharge port. This structure has improved the convenience of use to a certain extent, but it also has some defects, including: the flip cover and the hose are screwed together, and the screw connection requires a certain height of travel space, which makes the height of the flip cover body relatively high; the upper cover of the flip cover is a flip-open structure relative to the lower cover, and the lower cover is provided with a protruding discharge port, which further increases the height of the flip cover. Ultimately, the overall height of the hose is too high, and the flip cover assembly consumes a lot of materials and has a high production cost. In addition, the sealing performance of the hose after matching with the flip cover assembly is not strong enough.

[0004] Therefore, there is an urgent need to provide a plastic-reducing packaging lid structure to solve the above technical problems. Summary of the invention

[0005] In view of the problems in the related art, the utility model proposes a plastic-reducing packaging cover structure, which reduces the structural height of the cover, saves materials and reduces costs.

[0006] The utility model is achieved in this way:

[0007] A plastic-reducing packaging cover structure is applied to a packaging hose. A raised ring platform is provided on the top of the packaging hose, and the center of the ring platform is a pipe opening connected to the inner cavity of the packaging hose. The cover structure includes an upper cover and a lower cover, and the upper cover and the lower cover are rotatably connected at one end, so that the upper cover can be opened and closed relative to the lower cover.

[0008] A first limiting groove is provided around the outer side wall of the ring platform; a first limiting convex strip is provided on the inner side wall of the lower cover; the lower cover is sleeved on the outer side of the ring platform, and the first limiting groove is buckled and matched with the first limiting convex strip;

[0009] The lower cover is provided with a discharge port, and the discharge port is connected to the inner cavity of the packaging hose through the pipe mouth; the upper cover is provided with a raised plug-in portion, and a raised interference portion is provided around the outer side wall of the plug-in portion; the radial dimension of the interference portion is greater than the radial dimension of the discharge port; when the upper cover is closed relative to the lower cover, the plug-in portion is tightly matched with the discharge port through the interference portion.

[0010] The upper cover and the lower cover are connected in one piece by a plastic hinge.

[0011] After setting the first limiting groove and the first limiting convex strip, the flip cover structure can be directly aligned with the ring platform and snapped into place to achieve a tight connection; and compared with the traditional spiral connection, the ring platform is not limited by the spiral stroke space, and the height can be reduced; and the setting of the discharge port and the plug-in part, in conjunction with the interference part, can not only further reduce the height of the flip cover structure, but also improve the sealing at the discharge port and the tightness of the connection between the upper cover and the lower cover. Compared with the existing technology, this solution can reduce the height of the flip cover structure by about one third, thereby reducing the use of production materials.

[0012] As a further optimization of the above scheme, a guide portion is formed by a protrusion around the outer wall of the ring platform; the guide portion is an annular structure, and its outer diameter gradually shrinks from bottom to top; the first limiting groove is arranged at the lower position of the guide portion, and the radial dimension of the first limiting groove is smaller than the maximum radial dimension of the guide portion.

[0013] When installing the lower cover, the first limiting convex strip on the lower cover gradually slides into the first limiting groove along the guide portion. The arrangement of the guide portion makes installation of the lower cover more convenient.

[0014] As a further optimization of the above scheme, the outer side wall of the ring platform is also provided with a vertically extending anti-rotation groove; a plurality of the anti-rotation grooves are evenly distributed around the outer side wall of the ring platform; the anti-rotation groove is arranged at the upper position of the first limiting groove; the inner side wall of the lower cover is provided with a vertically extending anti-rotation convex strip;

[0015] When the lower cover is assembled with the packaging hose, the anti-rotation groove and the anti-rotation convex strip cooperate with each other.

[0016] The anti-rotation groove and the anti-rotation convex strip can prevent idling between the flip cover structure and the ring platform.

[0017] As a further optimization of the above solution, the lower cover includes a first cover edge and a second cover edge that are protruding downward and in an annular shape; the second cover edge is located on the outer peripheral side of the first cover edge;

[0018] The first limiting convex strip is arranged on the inner side wall of the first cover edge; the first cover edge is cooperatively connected with the ring platform;

[0019] The top of the packaging hose comprises a tube shoulder; the tube shoulder is located on the outer peripheral side of the ring platform; and the edge of the second cover edge abuts against the edge of the tube shoulder.

[0020] As a further optimization of the above solution, the lower cover is convex downward along the edge of the discharge port to form an inner connecting portion; the end of the inner connecting portion is convex toward the center to form a supporting platform portion;

[0021] When the upper cover is closed relative to the lower cover, the interference portion is connected with the inner connection portion; and the end of the plug-in portion is in contact with the upper surface of the support portion.

[0022] The inner connection part and the interference part fit tightly together, which helps to ensure the sealing between the cap and the hose and prevent the contents from leaking. The support part can provide additional support for the plug-in part and enhance the stability of the overall structure.

[0023] As a further optimization of the above solution, a raised, annular sealing portion is provided on the lower side of the lower cover; the sealing portion is arranged around the outer peripheral side of the internally connected portion; the radial dimension of the sealing portion is larger than the radial dimension of the discharge port, and the sealing portion is inserted into the pipe mouth and has an interference fit with the pipe mouth.

[0024] The sealing part improves the sealing performance after the pipe opening is connected with the flip cover structure.

[0025] As a further optimization of the above scheme, the top of the ring platform protrudes toward the center along the edge to form a support platform, and the center of the support platform is the pipe mouth; the lower side surface of the lower cover is provided with a raised, annular sealing strip; the sealing strip is arranged around the outer peripheral side of the sealing part; after the flip cover structure is assembled with the packaging hose, the sealing strip is connected to the upper side surface of the support platform.

[0026] The sealing strip further enhances the sealing.

[0027] As a further optimization of the above scheme, the top of the lower cover sinks along the edge to form a sinking platform; the lower cover is provided with a second protruding limiting ridge on the side wall at the sinking platform; a second limiting groove is formed between the second limiting ridge and the sinking platform; the inner side wall of the upper cover is also provided with a third limiting ridge; the third limiting ridge cooperates with the second limiting groove to make the upper cover and the lower cover closed and tightened.

[0028] As a further optimization of the above solution, rounded corners or chamfers are provided along the edge of the discharge port.

[0029] The rounded corners and chamfers facilitate the alignment of the plug-in part and its insertion into the discharge port.

[0030] As a further optimization of the above solution, the upper cover includes a connecting end, which is connected to the lower cover; an inner recess is provided on the outer side wall of the upper cover; and the inner recess is located on the opposite side of the connecting end.

[0031] The inner recess provides a clear gripping point for the user to more easily grasp the upper cover and apply force to open the upper cover.

[0032] The beneficial effects are as follows:

[0033] The utility model provides a plastic-reducing packaging cover structure, including a ring platform and a first limiting groove, a cover structure and a first limiting convex strip. The cover structure can be directly aligned with the ring platform and snapped into place to achieve a tight connection. Compared with the traditional spiral connection, the ring platform is not limited by the spiral stroke space, and the height can be reduced. The discharge port and the plug-in part are provided, and the interference part is matched, which can further reduce the height of the cover structure and improve the sealing at the discharge port and the tightness of the connection between the upper cover and the lower cover. Compared with the existing technology, this solution can reduce the height of the cover structure by about one third, saving materials and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the overall structure of a packaging hose and a flip cover structure provided by an embodiment of the utility model;

[0035] Figure 2 A schematic diagram of the cross-section structure of the packaging hose and the flip cover structure after being separated provided by the embodiment of the utility model;

[0036] Figure 3 for Figure 2 A local enlarged schematic diagram at point a;

[0037] Figure 4 for Figure 2 A local enlarged schematic diagram at point b;

[0038] Figure 5 for Figure 2 A local enlarged schematic diagram at c;

[0039] Figure 6 for Figure 2 A local enlarged schematic diagram at point d;

[0040] Figure 7 for Figure 1 A schematic diagram of a partially enlarged cutaway structure at a connection;

[0041] Figure 8 for Figure 1 A schematic diagram of a partially enlarged cutaway structure at the stop groove;

[0042] Reference numerals:

[0043] 1. Packaging hose;

[0044] 11. Ring platform; 111. First limiting groove; 112. Guide portion; 113. Stop groove; 114. Support platform;

[0045] 12. pipe mouth; 13. pipe shoulder;

[0046] 2. Lift cover structure;

[0047] 21. upper cover; 211. plug-in portion; 212. interference portion; 213. third limiting convex strip; 214. inner concave portion;

[0048] 22, lower cover; 221, discharge port; 222, first cover edge; 223, second cover edge; 224, first limit convex strip; 225, anti-rotation convex strip; 226, inner connection part; 227, support platform part; 228, sealing part; 229, sealing strip;

[0049] 23. sinking platform; 231. second limiting convex strip; 232. second limiting groove. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0051] like Figures 1 to 8 As shown, this embodiment provides a plastic-reducing packaging cover structure 2, which is applied to a packaging hose 1. A raised ring platform 11 is provided on the top of the packaging hose 1, and a pipe opening 12 connected to the inner cavity of the packaging hose 1 is located in the center of the ring platform 11;

[0052] In this embodiment, a first limiting groove 111 is provided on the outer side wall of the ring platform 11;

[0053] In this embodiment, the outer wall of the ring platform 11 is raised to form a guide portion 112; the guide portion 112 is an annular structure, and its outer diameter gradually shrinks from bottom to top; the guide portion 112 is located above the first limiting groove 111, and the radial dimension of the first limiting groove 111 is smaller than the maximum radial dimension of the guide portion 112.

[0054] In this embodiment, the outer side wall of the ring platform 11 is further provided with a vertically extending anti-rotation groove 113; a plurality of anti-rotation grooves 113 are evenly distributed around the outer side wall of the ring platform 11; the anti-rotation grooves 113 are provided above the guide portion 112;

[0055] The flip cover structure 2 includes an upper cover 21 and a lower cover 22 , which are rotatably connected at one end, wherein an integrally connected plastic hinge portion is provided between the upper cover 21 and the lower cover 22 , so that the upper cover 21 can be flipped open and closed relative to the lower cover 22 .

[0056] In this embodiment, the lower cover 22 includes a first cover edge 222 and a second cover edge 223 that are protruding downward and are annular; the second cover edge 223 is located on the outer peripheral side of the first cover edge 222;

[0057] The top of the packaging hose 1 includes a tube shoulder 13 ; the tube shoulder 13 is located on the outer peripheral side of the ring platform 11 ; and the edge of the second cover edge 223 abuts against the edge of the tube shoulder 13 .

[0058] In this embodiment, the first cover edge 222 is connected with the ring platform 11; the inner side wall of the first cover edge 222 is provided with a first limit ridge 224 and a vertically extending anti-rotation ridge 225; the anti-rotation ridge 225 is located above the first limit ridge 224;

[0059] When the flip cover structure 2 and the packaging hose 1 are assembled, the first cover edge 222 of the lower cover 22 is sleeved on the outer side of the ring platform 11, and the first limiting ridge 224 on the first cover edge 222 gradually slides into the first limiting groove 111 along the guide portion 112, and the first limiting groove 111 is buckled with the first limiting ridge 224; the anti-rotation groove 113 and the anti-rotation ridge 225 cooperate with each other to prevent idling between the flip cover structure 2 and the ring platform 11.

[0060] The lower cover 22 is provided with a discharge port 221, which is connected to the inner cavity of the packaging hose 1 through the pipe opening 12; in this embodiment, the lower cover 22 protrudes downward along the edge of the discharge port 221 to form an inner connecting portion 226; the end of the inner connecting portion 226 protrudes toward the center to form a support platform portion 227;

[0061] In this embodiment, a raised, annular sealing portion 228 is provided on the lower side surface of the lower cover 22; the sealing portion 228 is arranged around the outer peripheral side of the internal connecting portion 226; the radial dimension of the sealing portion 228 is greater than the radial dimension of the discharge port 221; when the flip cover structure 2 and the packaging hose 1 are assembled, the sealing portion 228 is inserted into the pipe mouth 12 and has an interference fit with the pipe mouth 12 to improve the sealing after connection.

[0062] In this embodiment, the top of the ring platform 11 protrudes toward the center along the edge to form a support platform 114, and the center of the support platform 114 is the pipe mouth 12; the lower side surface of the lower cover 22 is provided with a raised, annular sealing strip 229; the sealing strip 229 is arranged around the outer peripheral side of the sealing portion 228; after the flip cover structure 2 and the packaging hose 1 are assembled, the sealing strip 229 is connected to the upper side surface of the support platform 114 to further enhance the sealing performance.

[0063] In this embodiment, a rounded corner is provided along the edge of the discharge port 221. The upper cover 21 is provided with a raised plug-in portion 211, and a raised interference portion 212 is provided around the outer wall of the plug-in portion 211; the radial dimension of the interference portion 212 is greater than the radial dimension of the discharge port 221;

[0064] When the upper cover 21 is closed relative to the lower cover 22, the plug-in portion 211 is tightly matched with the discharge port 221 through the interference portion 212. The fillet / chamfer facilitates the plug-in portion 211 to align and insert into the discharge port 221. Specifically, the interference portion 212 is matched and connected with the inner connection portion 226; the end of the plug-in portion 211 abuts against the upper surface of the support portion 227.

[0065] The inner connecting portion 226 is closely matched with the interference portion 212, which helps to ensure the sealing between the cover and the hose and prevent the leakage of the contents. The support portion 227 can provide additional support for the plug-in portion 211 to enhance the stability of the overall structure.

[0066] After the first limiting groove 111 and the first limiting convex strip 224 are provided, the flip cover structure 2 can be directly aligned with the ring platform 11 and snapped into place to achieve a tight connection; and compared with the traditional spiral connection, the ring platform 11 is not limited by the spiral stroke space, and the height can be reduced; and the provision of the discharge port 221 and the plug-in portion 211, in conjunction with the interference portion 212, can further reduce the height of the flip cover structure 2, and improve the sealing at the discharge port 221, and the tightness of the connection between the upper cover 21 and the lower cover 22. Compared with the prior art, this solution can reduce the height of the flip cover structure 2 by about one third, thereby reducing the use of production materials.

[0067] In this embodiment, the top of the lower cover 22 sinks along the edge to form a sinking platform 23; the lower cover 22 is provided with an outwardly protruding second limiting ridge 231 on the side wall at the sinking platform 23; a second limiting groove 232 is formed between the second limiting ridge 231 and the sinking platform 23; the inner side wall of the upper cover 21 is also provided with a third limiting ridge 213; the third limiting ridge 213 and the second limiting groove 232 cooperate with each other to close and tighten the upper cover 21 and the lower cover 22.

[0068] In this embodiment, the upper cover 21 includes a connection end, which is connected to the lower cover 22; an inner recess 214 is provided on the outer wall of the upper cover 21; and the inner recess 214 is located on the opposite side of the connection end. The inner recess 214 provides a clear gripping point for the user to more easily grasp the upper cover 21 and apply force to open the upper cover 21.

[0069] According to the disclosure and teaching of the above description, those skilled in the art to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A plastic-reducing packaging cover structure, applied to a packaging hose, wherein a raised ring platform is provided on the top of the packaging hose, and the center of the ring platform is a pipe opening connected to the inner cavity of the packaging hose; the cover structure comprises an upper cover and a lower cover, and the upper cover and the lower cover are rotatably connected at one end, so that the upper cover can be opened and closed relative to the lower cover; the characteristics are: A first limiting groove is provided around the outer side wall of the ring platform; a first limiting convex strip is provided on the inner side wall of the lower cover; the lower cover is sleeved on the outer side of the ring platform, and the first limiting groove is buckled and matched with the first limiting convex strip; The lower cover is provided with a discharge port, and the discharge port is connected to the inner cavity of the packaging hose through the pipe mouth; the upper cover is provided with a raised plug-in portion, and a raised interference portion is provided around the outer side wall of the plug-in portion; the radial dimension of the interference portion is greater than the radial dimension of the discharge port; when the upper cover is closed relative to the lower cover, the plug-in portion is tightly matched with the discharge port through the interference portion.

2. A plastic-reducing packaging lid structure according to claim 1, characterized in that: The outer wall protrusion around the annular platform forms a guide portion; the guide portion is an annular structure, and its outer diameter gradually shrinks from bottom to top; the first limiting groove is arranged at the lower position of the guide portion, and the radial dimension of the first limiting groove is smaller than the maximum radial dimension of the guide portion.

3. The plastic-reducing packaging cover structure according to claim 1, characterized in that: The outer side wall of the ring platform is also provided with a vertically extending anti-rotation groove; a plurality of the anti-rotation grooves are evenly distributed around the outer side wall of the ring platform; the anti-rotation groove is arranged above the first limiting groove; the inner side wall of the lower cover is provided with a vertically extending anti-rotation convex strip; When the lower cover is assembled with the packaging hose, the anti-rotation groove and the anti-rotation convex strip cooperate with each other.

4. The plastic-reducing packaging lid structure according to claim 1, characterized in that: The lower cover comprises a first cover edge and a second cover edge which are protruding downward and in an annular shape; the second cover edge is located at the outer peripheral side of the first cover edge; The first limiting convex strip is arranged on the inner side wall of the first cover edge; the first cover edge is cooperatively connected with the ring platform; The top of the packaging hose comprises a tube shoulder; the tube shoulder is located on the outer peripheral side of the ring platform; and the edge of the second cover edge abuts against the edge of the tube shoulder.

5. The plastic-reducing packaging lid structure according to claim 1, characterized in that: The lower cover protrudes downward along the edge of the discharge port to form an inner connecting portion; the end of the inner connecting portion protrudes toward the center to form a supporting platform portion; When the upper cover is closed relative to the lower cover, the interference portion is connected with the inner connection portion; and the end of the plug-in portion is in contact with the upper surface of the support portion.

6. A plastic-reducing packaging lid structure according to claim 5, characterized in that: The lower side surface of the lower cover is provided with a raised, annular sealing portion; the sealing portion is arranged around the outer peripheral side of the inner connecting portion; the radial dimension of the sealing portion is greater than the radial dimension of the discharge port, and the sealing portion is inserted into the pipe mouth and has an interference fit with the pipe mouth.

7. A plastic-reducing packaging lid structure according to claim 6, characterized in that: The top of the ring platform protrudes toward the center along the edge to form a support platform, and the center of the support platform is the pipe opening; the lower side of the lower cover is provided with a raised, annular sealing strip; the sealing strip is arranged around the outer peripheral side of the sealing part; after the flip cover structure is assembled with the packaging hose, the sealing strip is connected to the upper side of the support platform.

8. The plastic-reducing packaging lid structure according to claim 1, characterized in that: The top of the lower cover sinks along the edge to form a sinking platform; the lower cover is provided with a second protruding limiting ridge on the side wall at the sinking platform; a second limiting groove is formed between the second limiting ridge and the sinking platform; the inner side wall of the upper cover is also provided with a third limiting ridge; the third limiting ridge cooperates with the second limiting groove to make the upper cover and the lower cover closed and tightened.

9. The plastic-reducing packaging lid structure according to claim 1, characterized in that: Rounded corners or chamfers are provided along the edge of the discharge port.

10. The plastic-reducing packaging lid structure according to claim 1, characterized in that: The upper cover comprises a connecting end, and the connecting end is connected to the lower cover; an inner recess is provided on the outer side wall of the upper cover; and the inner recess is located at the opposite side of the connecting end.

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