A slider applicable to a double independent track zipper

Abstract

An embodiment of the present invention discloses a slider applicable to a double independent track zipper, which includes a separating member, a first limiting plate, a second limiting plate, and a connecting plate; the first limiting plate is provided with a first limiting tongue, the second limiting plate is provided with a second limiting tongue, the connecting plate is provided with a first elastic tongue and a second elastic tongue, the separating member is arranged on the connecting plate and is located between the first limiting tongue and the second limiting tongue, as well as between the first elastic tongue and the second elastic tongue; one end of both the first limiting plate and the second limiting plate is provided with a first limiting block, the opposite ends of one end of the first limiting plate and the second limiting plate are both provided with a second limiting block, the interval area between the two first limiting blocks of the first limiting plate and the second limiting plate forms an opening guiding port, and the interval area between the two second limiting blocks of the first limiting plate and the second limiting plate forms a closing guiding port. The present invention achieves the function of completely sealing the double independent track zipper and preventing children from opening it at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of packaging, in particular to a slider suitable for a double independent track zipper. Background Art

[0002] At present, there are generally two types of structures used to seal the bag openings of packaging bags or sealed bags on the market. One is the more common single-track zipper, and the other is a double-track zipper. Bags using single-track zippers generally do not have particularly high requirements for sealing, while bags with particularly high requirements generally use double-track zippers. The slider set on the track zipper is an important component for opening or closing the zipper.

[0003] The common slider structure on the market mainly includes two pairs of relatively arranged limit plates, a top connecting plate connecting the two limit plates, and an opening pin arranged on the top connecting plate and located between the two limit plates. The zipper is opened by moving the opening pin. When the slider structure is used in a single-track zipper or a double-track zipper, the opening pin is placed between the zippers, and the zipper is cut open by moving the opening pin. Although this slider structure can play a certain sealing role, since its opening pin is always between the two track zippers, it cannot be completely sealed. More importantly, it does not have the function of preventing children from opening. Although there is another way to set a slider for double-track zippers on the market, that is, a slider is set in the high-position track zipper in the double-track zipper, and the opening pin of the slider is only in the high-position track zipper, not in the low-position track zipper in the double-track zipper. When the slider opens the high-position track, the low-position track is stretched open, but even in the closed state of the zipper, it can be easily opened by hand, and it cannot be prevented from opening by children. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a slider suitable for a double independent track zipper.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A slider applicable to a double independent track zipper, comprising a separating member, a first limiting plate and a second limiting plate arranged oppositely, and a connecting plate connecting the first limiting plate and the second limiting plate; the first limiting plate is provided with a first limiting tongue, the second limiting plate is provided with a second limiting tongue, the first limiting tongue and the second limiting tongue are arranged in a relative position relationship, the connecting plate is provided with a first elastic tongue and a second elastic tongue arranged in a relative position relationship, the first elastic tongue and the second elastic tongue are located above the first limiting tongue and the second limiting tongue, and the first elastic tongue corresponds to the first limiting tongue, the second elastic tongue corresponds to the second limiting tongue, the separating member is arranged on the connecting plate and is located between the first limiting tongue and the second limiting tongue, and the first elastic tongue and the second elastic tongue; one end of each of the first limiting plate and the second limiting plate is provided with a first limiting block, the opposite ends of one end of each of the first limiting plate and the second limiting plate are provided with second limiting blocks, the interval area between the two first limiting blocks of the first limiting plate and the second limiting plate forms an opening guiding port, and the interval area between the two second limiting blocks of the first limiting plate and the second limiting plate forms a closing guiding port; hook-shaped protrusions are arranged in both the opening guiding port and the closing guiding port.

[0007] A further technical solution thereof is that the tops of the first limiting tongue and the second limiting tongue are flat surfaces or barbed surfaces.

[0008] A further technical solution thereof is that the bottoms of the first limiting tongue and the second limiting tongue are inclined surfaces.

[0009] A further technical solution thereof is that the height difference between the first elastic tongue and the first limiting tongue, and the height difference between the second elastic tongue and the second limiting tongue are both greater than or equal to the height of the high-position track zipper in the double independent track zipper.

[0010] A further technical solution thereof is that the width between the first elastic tongue and the second elastic tongue in the non-force state is less than the width of the high-position track zipper in the double independent track zipper.

[0011] A further technical solution thereof is that there are two first elastic tongues and two second elastic tongues. One of the two first elastic tongues is arranged close to the opening guiding port, and the other is arranged away from the opening guiding port. One of the two second elastic tongues is arranged close to the opening guiding port, and the other is arranged away from the opening guiding port.

[0012] A further technical solution thereof is that the separating member includes a cutting part and a guiding part. The cutting part is arranged close to the opening guiding port, and the guiding part is arranged away from the opening guiding port.

[0013] A further technical solution is as follows: the height of the guide portion is greater than the height of the cut portion; and one end of the cut portion close to the opening guide opening is located outside the two first limit blocks of the first limit plate and the second limit plate.

[0014] A further technical solution is that the cross section of the cut portion is triangular.

[0015] A further technical solution is as follows: the tops of the two first limit blocks of the first limit plate and the second limit plate are both inclined surfaces, and the angle formed between the two inclined surfaces is 120 degrees to 160 degrees.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: through the cooperation of the first limiting tongue, the second limiting tongue, the first elastic tongue and the second elastic tongue, in the application of the double-track zipper, when in a locked state, the guide portion of the separator is always in the high-track zipper of the double-track zipper, and the cut-away portion of the separator is not in the high-track zipper of the double-track zipper, the first elastic tongue and the second elastic tongue abut against the top of the high-track zipper of the double-track zipper, and the first limiting tongue and the second limiting tongue support the bottom of the high-track zipper of the double-track zipper. In this state, no matter how the slider is slid, the high-track zipper and the low-track zipper of the double-track zipper are in In the closed state, when in the unlocked state, the guide portion of the separator is always in the high-position track zipper of the double-track zipper, and the cut-open portion of the separator enters the high-position track zipper of the double-track zipper, the first elastic latch and the second elastic latch no longer abut against the top of the high-position track zipper of the double-track zipper, and the first limit latch and the second limit latch no longer abut against the bottom of the high-position track zipper of the double-track zipper. In this state, by sliding the slider from the opening guide port to the closing guide port, the high-position track zipper of the double-track zipper is separated under the action of the separator, and the low-position track zipper of the double-track zipper is automatically torn apart when the high-position track zipper of the double-track zipper is separated. Therefore, the slider needs to enter the unlocked state from the locked state before the double-track zipper can be opened normally, which truly achieves the function of preventing children from opening. Moreover, the low-position track zipper of the double-track zipper does not rely on the separator to open, so while opening is convenient, it ensures complete sealing.

[0017] In addition, the tops of the first limiting tongue and the second limiting tongue are designed to be flat surfaces or barbed surfaces, so that they can support the bottom of the high-position track zipper of the double-track zipper when in the locked state. The bottoms of the first limiting tongue and the second limiting tongue are designed to be inclined surfaces, so that the slider can be easily inserted into the double-track zipper when installing the slider.

[0018] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other objects, features and advantages of the present invention more obvious and understandable, the following preferred embodiments are specifically described in detail as follows. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of a slider applicable to a double independent track zipper provided by a specific embodiment of the present invention;

[0021] Figure 2 Structural schematic diagram of another perspective of a slider applicable to a double independent track zipper provided by a specific embodiment of the present invention;

[0022] Figure 3 Structural schematic diagram of yet another perspective of a slider applicable to a double independent track zipper provided by a specific embodiment of the present invention;

[0023] Figure 4 Usage schematic diagram of a slider applicable to a double independent track zipper provided by a specific embodiment of the present invention Figure 1 ;

[0024] Figure 5 Usage schematic diagram of a slider applicable to a double independent track zipper provided by a specific embodiment of the present invention Figure 2 .

[0025] Reference Numerals

[0026] 1. Slider applicable to double independent track zipper; 11. First limiting plate; 111. First limiting tongue; 12. Second limiting plate; 121. Second limiting tongue; 13. Connecting plate; 131. First elastic tongue; 132. Second elastic tongue; 14. Separation member; 141. Guiding portion; 142. Scratching portion; 15. Opening guiding port; 16. Closing guiding port; 17. First limiting block; 171. Inclined surface; 18. Second limiting block; 19. Hook-shaped protrusion; 100. High-position track zipper; 200. Low-position track zipper. Detailed Description of the Embodiments

[0027] The following will clearly and completely describe the technical solution of the present invention in conjunction with specific embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] It should be understood that when used in this specification and the claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0029] It should also be understood that the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.

[0030] It should be further understood that the term "and / or" used in the specification of the present invention and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] Specific embodiments of the present invention provide a slider applicable to a double independent track zipper, such as Figure 1 、 2, as shown in FIGS. 3, the slider 1 applicable to the double independent track zipper includes a separating member 14, a first limiting plate 11 and a second limiting plate 12 which are oppositely arranged, and a connecting plate 13 connecting the first limiting plate 11 and the second limiting plate 12. The first limiting plate 11 and the second limiting plate 12 are arranged in a left-right position alignment, and the connecting plate 13 connects the two from the top of the first limiting plate 11 and the second limiting plate 12, presenting an overall groove shape. A first limiting tongue 111 is fixedly connected to the inner side surface of the first limiting plate 11, and a second limiting tongue 121 is fixedly connected to the inner side surface of the second limiting plate 12. The first limiting tongue 111 and the second limiting tongue 121 are arranged in a relative position relationship. A first elastic tongue 131 and a second elastic tongue 132 which are arranged in a left-right relative position relationship are fixedly connected to the inner side surface of the connecting plate 13. The first elastic tongue 131 and the second elastic tongue 132 are located above the first limiting tongue 111 and the second limiting tongue 121, and the first elastic tongue 131 and the first limiting tongue 111 are in a vertically corresponding relationship, and the second elastic tongue 132 and the second limiting tongue 121 are in a vertically corresponding relationship. The separating member 14 is also fixedly connected to the inner side surface of the connecting plate 13 and is located between the first limiting tongue 111 and the second limiting tongue 121, and the first elastic tongue 131 and the second elastic tongue 132. A first limiting block 17 is provided at one end of each of the first limiting plate 11 and the second limiting plate 12, and a second limiting block 18 is provided at the opposite end of one end of each of the first limiting plate 11 and the second limiting plate 12. The interval area between the two first limiting blocks 17 of the first limiting plate 11 and the second limiting plate 12 constitutes an opening guiding port 15, and the interval area between the two second limiting blocks 18 of the first limiting plate 11 and the second limiting plate 12 constitutes a closing guiding port 16. Hook-shaped protrusions 19 capable of detaching the slider from above the high-position track zipper 100 of the double independent track zipper are provided in both the opening guiding port 15 and the closing guiding port 16.

[0032] As Figure 3 shown, the separating member 14 includes a cutting part 142 and a guiding part 141. The cutting part 142 is arranged close to the opening guiding port 15, and the guiding part 141 is arranged far from the opening guiding port 15. The cutting part 142 and the guiding part 141 are on the same axis. The function of the cutting part 142 is to cut open the zipper, and the guiding part 141 plays a guiding role.

[0033] As Figure 3 shown, one end of the cutting part 142 close to the opening guiding port 15 is located outside the two first limiting blocks 17 of the first limiting plate 11 and the second limiting plate 12; the purpose of doing this is to ensure a better effect of automatically tearing open the low-position track zipper 200 when the high-position track zipper 100 is opened.

[0034] Preferably, the height of the guide portion 141 is greater than the height of the cut portion 142 , so that in the locked state, only the guide portion 141 is located in the high-track zipper 100 , and the cut portion 142 is not located in the high-track zipper 100 .

[0035] Preferably, the cross section of the cut portion 142 is triangular, which facilitates the cut portion 142 to be embedded in the high-track zipper 100 when changing from a locked state to an unlocked state.

[0036] In actual application, the slider is installed on the double independent track zipper of the packaging belt, such as Figure 4 , 5 As shown, the dual independent track zipper is divided into a high track zipper 100 and a low track zipper 200. Both the high track zipper 100 and the low track zipper 200 are composed of two parallel single chains. The high track zipper 100 is located above the low track zipper 200, and the slider is installed on the high track zipper 100. When a force is applied to the slider along the length direction of the high track zipper 100, the slider can slide along the high track zipper 100. However, due to the unique design of the slider, the high track zipper 100 and the low track zipper 200 can only be opened when the slider enters the unlocked state.

[0037] Specifically, when the slider is in the high position (relative to the low position), the guide portion 141 of the separator 14 is in the high track zipper 100, and the cut portion 142 of the separator 14 is not in the high track zipper 100, the first elastic latch 131 and the second elastic latch 132 are in contact with the top of the high track zipper 100, and the first limiting latch 111 and the second limiting latch 121 are against the bottom of the high track zipper 100, this state is the locked state, Figure 4 The state of the slider is a locked state. In this state, since the first elastic tongue 131 and the second elastic tongue 132 are in contact with the top of the high-track zipper 100, and the first limiting tongue 111 and the second limiting tongue 121 are against the bottom of the high-track zipper 100, no matter how the slider is slid, the high-track zipper 100 and the low-track zipper 200 are in a closed state and cannot be opened, thereby playing a role in preventing children from opening.

[0038] When the slider is in a low position (relative to the high position) by pressing the slider downward, the guide portion 141 of the separator 14 is in the high-track zipper 100, and the cut portion 142 of the separator 14 enters the high-track zipper 100, the first elastic latch 131 and the second elastic latch 132 no longer abut against the top of the high-track zipper 100, and the first limiting latch 111 and the second limiting latch 121 no longer abut against the bottom of the high-track zipper 100, this state is the unlocked state, Figure 5The state of the slider is an unlocked state. In this state, since the cutting portion 142 and the guide portion 141 are both located in the high-track zipper 100, by sliding the slider from the open guide opening 15 to the closed guide opening 16, the high-track zipper 100 is separated under the action of the separator 14, and the low-track zipper 200 is automatically torn open at the same time as the high-track zipper 100 is separated.

[0039] From the above, it can be seen that the slider needs to enter the unlocked state from the locked state before the double-track zipper can be opened normally, which truly achieves the function of preventing children from opening. Moreover, the low-track zipper 200 is not opened by the separator 14, but is automatically torn open at the same time as the high-track zipper 100 is cut. The separator 14 will not cause contact interference to the low-track zipper 200. Therefore, while it is easy to open, complete sealing is guaranteed.

[0040] Preferably, the tops of the first limiting tongue 111 and the second limiting tongue 121 are flat surfaces or barbed surfaces. The advantage of being flat surfaces or barbed surfaces is that they can support the bottom of the high-position track zipper 100 in the locked state.

[0041] Preferably, the bottom of the first limiting tongue 111 and the second limiting tongue 121 are inclined surfaces, and the inclined surfaces on the first limiting tongue 111 and the second limiting tongue 121 are in a left-right relative position relationship. The advantage of setting the inclined surface is that it is easy to insert the slider into the double-track zipper when installing the slider.

[0042] Preferably, the height difference between the first elastic latch 131 and the first limit latch 111, and the height difference between the second elastic latch 132 and the second limit latch 121 are both greater than or equal to the height of the high track zipper 100. The advantage of such a setting is that the high track zipper 100 can be stuck in a locked state, and in this state, the high track zipper 100 cannot be opened even if the slider is slid. It should be noted that the height difference between the first elastic latch 131 and the first limit latch 111, and the height difference between the second elastic latch 132 and the second limit latch 121 are both slightly greater than or equal to the height of the high track zipper 100, which is conducive to the high track zipper 100 being stuck.

[0043] Preferably, in the non-stressed state, the width between the first elastic tongue 131 and the second elastic tongue 132 is smaller than the width of the track zipper, so that in the locked state, the upper part of the high-position track zipper 100 can be clamped and abutted against the high-position track zipper 100.

[0044] Preferably, the first elastic latch 131 and the second elastic latch 132 are flat surfaces that abut against the top of the high track zipper 100 , so as to facilitate abutment against the top of the high track zipper 100 .

[0045] Preferably, both the first elastic tongue 131 and the second elastic tongue 132 are in the shape of a cuboid, and the bottoms of the two are flush.

[0046] In this embodiment, as Figure 3 shown, there are two first elastic tongues 131 and two second elastic tongues 132. One of the two first elastic tongues 131 is arranged close to the opening guide port 15, and the other is arranged away from the opening guide port 15. One of the two second elastic tongues 132 is arranged close to the opening guide port 15, and the other is arranged away from the opening guide port 15. The arrangement of two first elastic tongues 131 and two second elastic tongues 132 is beneficial to make the abutting force formed on the top of the high-position track zipper 100 more uniform.

[0047] As Figure 2 shown, the tops of the two first limiting blocks 17 of the first limiting plate 11 and the second limiting plate 12 are both inclined surfaces 171, and the included angle formed between the two inclined surfaces 171 is 120 degrees - 160 degrees. The inclined surface 171 must be set because it can create conditions for the low-position track zipper 200 to be automatically torn apart in the unlocked state. Since the inclined surface 171 is set, when the high-position track zipper 100 is cut open, the two single chains of the high-position track zipper 100 will deflect in the direction of the inclined surface 171, so that the two single chains of the low-position track zipper 200 will be subjected to lateral forces and thus be automatically torn apart. Since the low-position track zipper 200 does not directly contact the separating member 14 in the locked state, and will not contact the separating member 14 in the unlocked state either, but is automatically torn apart by the pulling force when the high-position track zipper 100 is cut open, not only is the structural design ingenious, but also the low-position track zipper 200 can be completely sealed.

[0048] The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A slider applicable to a double independent track zipper, characterized in that, It includes a separating member, a first limiting plate and a second limiting plate which are oppositely arranged, and a connecting plate connecting the first limiting plate and the second limiting plate; the first limiting plate is provided with a first limiting tongue, the second limiting plate is provided with a second limiting tongue, the first limiting tongue and the second limiting tongue are arranged in a relative position relationship, the connecting plate is provided with a first elastic tongue and a second elastic tongue which are arranged in a relative position relationship, the first elastic tongue and the second elastic tongue are located above the first limiting tongue and the second limiting tongue, and the first elastic tongue corresponds to the first limiting tongue, the second elastic tongue corresponds to the second limiting tongue, the separating member is arranged on the connecting plate and is located between the first limiting tongue and the second limiting tongue, and between the first elastic tongue and the second elastic tongue; one end of both the first limiting plate and the second limiting plate is provided with a first limiting block, the opposite ends of one end of both the first limiting plate and the second limiting plate are provided with second limiting blocks, the interval area between the two first limiting blocks of the first limiting plate and the second limiting plate forms an opening guiding port, and the interval area between the two second limiting blocks of the first limiting plate and the second limiting plate forms a closing guiding port; hook-shaped protrusions are arranged in both the opening guiding port and the closing guiding port; the tops of the first limiting tongue and the second limiting tongue are flat surfaces or barbed surfaces; the height difference between the first elastic tongue and the first limiting tongue, and the height difference between the second elastic tongue and the second limiting tongue are both greater than or equal to the height of the high-position track zipper in the double independent track zipper.

2. The slider for a double independent track zipper according to claim 1, wherein The bottoms of the first limiting tongue and the second limiting tongue are inclined surfaces.

3. A slider applicable to a double independent track zipper according to claim 1, characterized in that, In the non-force state, the width between the first elastic tongue and the second elastic tongue is less than the width of the high-position track zipper in the double independent track zipper.

4. A slider applicable to a double independent track zipper according to claim 1 or 3, characterized in that, Both the first elastic tongue and the second elastic tongue are two. One of the two first elastic tongues is arranged close to the opening guiding port, and the other is arranged far from the opening guiding port. One of the two second elastic tongues is arranged close to the opening guiding port, and the other is arranged far from the opening guiding port.

5. The slider for a double independent track zipper according to claim 1, characterized in that, The separating member includes a cutting part and a guiding part. The cutting part is arranged close to the opening guiding port, and the guiding part is arranged far from the opening guiding port.

6. A slider applicable to a double independent track zipper according to claim 5, characterized in that, The height of the guiding part is greater than the height of the cutting part; one end of the cutting part close to the opening guiding port is located outside the two first limiting blocks of the first limiting plate and the second limiting plate.

7. A slider applicable to a double independent track zipper according to claim 5, characterized in that, The cross-section of the cutting part is triangular.

8. A slider applicable to a double independent track zipper according to claim 1, characterized in that, The tops of the two first limiting blocks of the first limiting plate and the second limiting plate are both inclined surfaces, and the included angle formed between the two inclined surfaces is 120 degrees - 160 degrees.

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