Novel single-side easy-to-tear clamping chain
By adopting asymmetrical design of the child and female buckle in the single-sided easy-to-tear chain, combined with the structure of long protrusions, short protrusions and V-shaped grooves, the problem of inclination and difficulty in separation in the prior art is solved, and the effect of easier opening of the packaging bag and keeping the tear neat is achieved.
Patent Information
- Application Number
- CN202421634033.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-11
AI Technical Summary
The existing single-sided easy-to-tear clips may cause severe tilt of the tear and damage the packaging bags when used, and it is difficult to separate the male claws and female grooves after being buckled, which is laborious.
A new type of single-sided easy-to-tear clip chain is designed, adopting an asymmetric design of the child buckle and the female buckle. The cross-section of the child buckle is an arrow-shaped cross-section of the two wings, and the cross-section of the female buckle is a heart-shaped ring with openings. Long protrusions, short protrusions and V-shaped grooves are provided on both sides of the tearing strips. Combined with the heat sealing layer, these structures guide tearing when tearing, keeping the tearing neat.
When applying force easily, the child buckle is released from the female buckle, easily separating the main and secondary buckles, reducing the use force, and the tearing strips are easier to tear off, and the tearing mouth is neat, protecting the packaging bag.
Smart Images
Figure CN222769887U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging products, in particular to a novel single-sided easy-tear clip chain. Background Art
[0002] In daily life, the self-sealing function of packaging bags is achieved through clip chains. Single-sided easy-tear clip chains are favored by a large number of packaging industries because of their lightness, smooth feel, low price and reusability. Although small and inconspicuous, it keeps pace with the global packaging industry and has achieved rapid development. The common single-sided easy-tear clip chains on the market today are composed of a male claw and a female groove. When they are heat-sealed to both sides of the bag opening, the bag can be opened and closed repeatedly, ensuring freshness and safety, and extending the shelf life of the product in the bag. For common packaging bags that are filled from the top of the bag, the single-sided easy-tear clip chain is generally set in the upper middle part of the bag opening direction. The bag is opened from the side of the bag by tearing off the tear strip, which effectively improves the overall integrity and beauty of the bag.
[0003] However, in actual use, there are still some problems with the single-sided easy-tear clip chain on this packaging bag. For example, when the user tears off the tear strip and then pulls the two side walls of the packaging bag in opposite directions, the tear may be seriously tilted, thereby damaging the packaging bag and the sealing effect is not good. In addition, even if the user tries to tear the packaging bag with force, the male claw and the female groove are tightly fastened, and the bag mouth is often not opened smoothly, and the use process is relatively laborious. In view of this, the inventor decided to improve the single-sided easy-tear clip chain on the market during the production and research and development process, and thus filed this application. Summary of the invention
[0004] The utility model aims to solve the problems in the prior art that the tearing edge of the single-sided easy-tear clip chain may be seriously tilted when in use, thereby damaging the packaging bag, and the male claw and the female groove are difficult to separate after being buckled, and proposes a new single-sided easy-tear clip chain.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A novel single-sided easy-tear clip chain comprises a main sheet and a secondary sheet, wherein a pair of mutually engaging sub-buckles and female buckles are arranged at relative positions of the main sheet and the secondary sheet, wherein the cross section of the sub-buckle is an arrow shape with two asymmetrical wings, and the cross section of the female buckle is a heart-shaped ring with an opening; a tear strip is superimposed on the end of the side wall of the main sheet facing the secondary sheet, and a long protrusion is arranged on the end of the side wall of the secondary sheet facing the main sheet.
[0007] In some embodiments, the sub-buckle includes an arrow shaft portion arranged perpendicular to the main piece, and wing portion 1 and wing portion 2 are respectively extended outward from both sides of an end of the arrow shaft portion away from the main piece.
[0008] In some embodiments, the female buckle has a heart-shaped apex and a recessed portion, the apex of the female buckle is connected to the secondary piece, the recessed portion of the female buckle is open, and the female buckle opening divides the female buckle into a left half heart-shaped buckle and a right half heart-shaped buckle, and the bending angle of the right half heart-shaped buckle is smaller than the bending angle of the left half heart-shaped buckle. Wing part 1 cooperates with the left half heart-shaped buckle, and wing part 2 cooperates with the right half heart-shaped buckle, and the contours of the left half heart-shaped buckle and the right half heart-shaped buckle are designed to be asymmetrical.
[0009] In some embodiments, a plurality of reinforcing strips are arranged on one side of the tear strip, and the plurality of reinforcing strips are distributed on both sides of the sub-button, and the reinforcing strips are arranged along the length direction of the main piece.
[0010] In some embodiments, a short protrusion is provided between the tear strip and one of the adjacent reinforcement strips; in a direction perpendicular to the main sheet, the height of the short protrusion is less than the height of the reinforcement strip; and a groove is provided between the short protrusion and the tear strip.
[0011] In some embodiments, the groove is a V-shaped groove and is provided on the side wall of the main sheet facing the secondary sheet, and the groove runs through the main sheet along the length direction of the main sheet. By matching the short protrusion and the V-shaped groove, it is easier to tear off the tear strip while keeping the tear neat.
[0012] In some embodiments, a heat-sealing layer is provided on a side of the main sheet facing away from the secondary sheet and a side of the long protrusion facing the main sheet.
[0013] In some embodiments, the sub-buckle and the main piece are blow-molded as one piece, and the arrow shaft portion of the sub-buckle is connected to the main piece via an arc transition.
[0014] In some embodiments, the female buckle and the secondary piece are blow-molded in one piece, and the apex of the female buckle is connected to the secondary piece by an arc transition.
[0015] Compared with the prior art, the utility model provides a novel single-sided easy-tear clip chain, which has the following beneficial effects.
[0016] 1. In the utility model, the cross section of the sub-button is designed to be an arrow shape with two asymmetrical wings, the cross section of the mother buckle is designed to be a heart-shaped ring with an opening, and the contours of the left half heart-shaped buckle and the right half heart-shaped buckle are designed to be asymmetrical. When taking out the product in the packaging bag, after tearing off the tear strip, slightly pull the two side walls of the packaging bag in opposite directions with force. The force is applied in the direction from wing two to wing one, which makes it easy to remove the sub-button from the mother buckle, thereby easily separating the main piece and the secondary piece, which is more labor-saving.
[0017] 2. The utility model has a structure in which the long protrusions, the short protrusions and the V-shaped grooves are matched to guide the tearing process, making it easier to tear off the tear strip while keeping the tearing edge neat, which is beneficial to protecting the packaging bag.
[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model can easily disengage the sub-button from the mother button, thereby easily separating the main piece and the secondary piece.
[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the utility model.
[0021] Figure 2 It is a front view of the utility model.
[0022] Figure 3 It is a schematic diagram of the public plate in the utility model.
[0023] Figure 4 It is a schematic diagram of the mother piece in the utility model.
[0024] The reference numerals in the accompanying drawings are:
[0025] 1. Main piece; 2. Secondary piece; 3. Sub-buckle; 31. Arrow shaft; 32. Wing part one; 33. Wing part two; 4. Mother buckle; 41. Left half heart-shaped buckle; 42. Right half heart-shaped buckle; 5. Tear strip; 6. Long protrusion; 7. Reinforcement strip; 8. Short protrusion; 9. Groove; 10. Heat sealing layer. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0027] Reference Figure 1-Figure 4 A new type of single-sided easy-tear clip chain, including a main piece 1 and a secondary piece 2, a pair of mutually engaging sub-buckles 3 and female buckles 4 are arranged at the relative positions of the main piece 1 and the secondary piece 2, the cross section of the sub-buckle 3 is an arrow shape with two asymmetrical wings, and the cross section of the female buckle 4 is a heart-shaped ring with an opening; a tear strip 5 is superimposed on the side wall end of the main piece 1 facing the secondary piece 2, and a long protrusion 6 is arranged on the side wall end of the secondary piece 2 facing the main piece 1, the long protrusion 6 on the secondary piece 2 and the short protrusion 8 on the main piece 1 are arranged on both sides of the tear strip 5, which play a role in guiding the tear strip 5 after heat sealing.
[0028] Please refer again Figure 3 The sub-button 3 includes an arrow shaft portion 31 arranged perpendicular to the main piece 1, and wing portions 1 32 and wing portions 2 33 are respectively extended outward on both sides of one end of the arrow shaft portion 31 away from the main piece 1. Specifically, the angle between the inner edge of wing portion 1 31 and the central axis of the arrow shaft portion 31 is smaller than the angle between the inner edge of wing portion 2 33 and the central axis of the arrow shaft portion 31.
[0029] Please refer again Figure 4 The female buckle 4 has a heart-shaped apex and a recessed portion, the apex of the female buckle 4 is connected to the secondary piece 2, and the recessed portion of the female buckle 4 is open, and the opening of the female buckle 4 divides the female buckle 4 into a left half heart-shaped buckle 41 and a right half heart-shaped buckle 42, and the bending angle of the right half heart-shaped buckle 42 is smaller than the bending angle of the left half heart-shaped buckle 41, wherein, in the direction along the secondary piece 2 toward the main piece 1, the left half heart-shaped buckle 41 and the right half heart-shaped buckle 42 are both formed by the first bending and the second bending, and in this embodiment, the bending angle of the left half heart-shaped buckle 41 corresponds to the angle at its second bending, and the bending angle of the right half heart-shaped buckle 42 also corresponds to the angle at its second bending.
[0030] The utility model inserts the child buckle 3 into the mother buckle 4, and the wing part 1 32 and the wing part 2 33 of the child buckle 3 are deformed due to the force and inserted into the mother buckle 4, and then restore to the original state and unfold in the internal space of the mother buckle 4, and the wing part 1 32 and the wing part 2 33 respectively hook the corresponding left half heart-shaped buckle 41 and the right half heart-shaped buckle 42, so as to seal the bag opening.
[0031] Furthermore, wing part 1 32 cooperates with the left half heart-shaped buckle 41, and wing part 2 33 cooperates with the right half heart-shaped buckle 42, and by designing the contours of the left half heart-shaped buckle 41 and the right half heart-shaped buckle 42 to be asymmetrical, after tearing off the tear strip 5, the two side walls of the packaging bag are pulled in opposite directions with a little force. The force is applied in the direction from wing part 2 33 to wing part 1 32, which makes it easy to remove the sub-buckle 3 from the mother buckle 4 and open the packaging bag, thereby improving convenience.
[0032] Please refer again Figure 2 A plurality of reinforcing strips 7 are arranged on one side of the tear strip 5 , and the plurality of reinforcing strips 7 are distributed on both sides of the sub-button 3 , and the reinforcing strips 7 are arranged along the length direction of the main piece 1 .
[0033] In this embodiment, a short protrusion 8 is provided between the tear strip 5 and one of the adjacent reinforcement strips 7; in the direction perpendicular to the main sheet 1, the height of the short protrusion 8 is less than the height of the reinforcement strip 7; a groove 9 is provided between the short protrusion 8 and the tear strip 5.
[0034] As an implementable embodiment, the groove 9 is a V-shaped groove and is opened on the side wall of the main piece 1 facing the secondary piece 2, and the groove 9 runs through the main piece 1 along the length direction of the main piece 1; through the matching setting structure of the long protrusion 6, the short protrusion 8 and the V-shaped groove 9, it plays a guiding role when tearing off, making it easier to tear off the tear strip 5 while keeping the tearing edge neat.
[0035] In actual application, the side of the main sheet 1 facing away from the secondary sheet 2 and the side of the long protrusion 6 facing the main sheet 1 are both provided with a heat sealing layer 10 so as to be heat-sealed on the packaging bag. Figure 2 In the horizontal direction, the gap between the right side of the tear strip 5 and the left side of the long protrusion 6 is within 0.3 mm. While ensuring the sealing effect of the packaging bag, the user can also easily tear off the tear strip 5 directly through the gap.
[0036] Considering the use of conventional extruder and blow molding process, the sub-buckle 3 and the main piece 1 are blow-molded as one piece, and the arrow shaft portion 31 of the sub-buckle 3 is connected to the main piece 1 by an arc transition; in addition, the mother buckle 4 and the secondary piece 2 are blow-molded as one piece, and the apex portion of the mother buckle 4 is connected to the secondary piece 2 by an arc transition.
[0037] The working principle of the utility model is:
[0038] In the utility model, the sub-button 3 on the main piece 1 and the mother button 4 on the secondary piece 2 are respectively located on the inner sides of the two bag walls of the formed packaging bag, and the distance between the two and the upper edge of the bag opening is so as to facilitate the opening and closing of the packaging bag by hand. The bag opening is sealed by inserting the sub-button 3 into the mother button 4; wherein, the wing part 1 32 cooperates with the left half heart-shaped button 41, and the wing part 2 33 cooperates with the right half heart-shaped button 42, and the contours of the left half heart-shaped button 41 and the right half heart-shaped button 42 are designed to be asymmetrical. When taking out the product in the packaging bag, after tearing off the tear strip 5, slightly pull the two side walls of the packaging bag in opposite directions. The force is applied in the direction from wing part 2 33 to wing part 1 32, which makes it easy to remove the sub-buckle 3 from the mother buckle 4, thereby easily separating the main piece 1 and the secondary piece 2. In the process of opening the bag, the structure of the long protrusion 6, the short protrusion 8 and the V-shaped groove 9 cooperate with each other to play a guiding role when tearing off, making it easier to tear off the tear strip 5 while keeping the tearing edge neat.
[0039] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A novel single-sided easy-tear clip chain, comprising a main sheet (1) and a secondary sheet (2), wherein a pair of mutually engaging sub-buckles (3) and a female buckle (4) are arranged at relative positions of the main sheet (1) and the secondary sheet (2), characterized in that: The cross section of the sub-button (3) is an arrow-shaped shape with two asymmetrical wings, and the cross section of the mother button (4) is a heart-shaped ring with an opening; the end of the side wall of the main piece (1) facing the secondary piece (2) is superimposed with a tear strip (5), and the end of the side wall of the secondary piece (2) facing the main piece (1) is provided with a long protrusion (6).
2. A novel single-sided easy-tear clip chain according to claim 1, characterized in that: The sub-button (3) comprises an arrow shaft portion (31) arranged perpendicular to the main plate (1), and two sides of an end of the arrow shaft portion (31) away from the main plate (1) respectively extend outwards to form a wing portion 1 (32) and a wing portion 2 (33).
3. A novel single-sided easy-tear clip chain according to claim 1, characterized in that: The female buckle (4) has a heart-shaped apex portion and a recessed portion, the apex portion of the female buckle (4) is connected to the secondary plate (2), the recessed portion of the female buckle (4) is open, and the female buckle (4) is divided into a left half heart-shaped buckle (41) and a right half heart-shaped buckle (42) at the opening of the female buckle (4), the bending angle of the right half heart-shaped buckle (42) being smaller than the bending angle of the left half heart-shaped buckle (41).
4. The novel single-sided easy-tear clip chain according to claim 1 is characterized in that: A plurality of reinforcing strips (7) are arranged on one side of the tear strip (5), the plurality of reinforcing strips (7) are distributed on both sides of the sub-button (3), and the reinforcing strips (7) are arranged along the length direction of the main sheet (1).
5. A novel single-sided easy-tear clip chain according to claim 4, characterized in that: A short protrusion (8) is provided between the tear strip (5) and one of the adjacent reinforcement strips (7); in a direction perpendicular to the main sheet (1), the height of the short protrusion (8) is less than the height of the reinforcement strip (7); and a groove (9) is provided between the short protrusion (8) and the tear strip (5).
6. A novel single-sided easy-tear clip chain according to claim 5, characterized in that: The groove (9) is a V-shaped groove and is provided on the side wall of the main piece (1) facing the secondary piece (2). The groove (9) penetrates the main piece (1) along the length direction of the main piece (1).
7. The novel single-sided easy-tear clip chain according to claim 1 is characterized in that: A heat-sealing layer (10) is provided on the side of the main sheet (1) facing away from the secondary sheet (2) and on the side of the long protrusion (6) facing the main sheet (1).
8. The novel single-sided easy-tear clip chain according to claim 2 is characterized in that: The sub-buckle (3) and the main piece (1) are blow-molded in one piece, and the arrow shaft portion (31) of the sub-buckle (3) is connected to the main piece (1) via an arc transition.
9. The novel single-sided easy-tear clip chain according to claim 3 is characterized in that: The female buckle (4) and the secondary piece (2) are blow-molded in one piece, and the apex of the female buckle (4) and the secondary piece (2) are connected via an arc transition.