WO2020206856A1

WO2020206856A1 - Self-sealing bag having function of preventing opening by children

Info

Publication number: WO2020206856A1
Application number: PCT/CN2019/095571
Authority: WO
Inventors: 刘超
Original assignee: 青岛德吉利包装科技有限公司
Priority date: 2019-04-08
Filing date: 2019-07-11
Publication date: 2020-10-15
Also published as: CN209988347U

Abstract

A self-sealing bag having a function of preventing opening by children, relating to the technical field of self-sealing bags, and comprising a double-sided bag body (1) and a sealing strip (2) provided at the opening of the bag body (1), two ends of the sealing strip (2) being fixedly connected to two sides of the bag body (1) in a thermally bonded manner, the sealing strip comprising a first self-sealing strip (21) and a second self-sealing strip (22), the first self-sealing strip (21) and the second self-sealing strip (22) being respectively provided with grooves (211) and ribs (221) capable of snap-fitting each other for sealing, both an upper edge line and a lower edge line of the first self-sealing strip (21) being connected to the bag body in a thermally bonded manner, a lower edge line of the second self-sealing strip (22) being connected to the bag body in a thermally bonded manner; an easy-to-tear strip (3) is provided at the position of the first self-sealing strip (21) between a thermally bonding line of the upper edge line and the grooves (211), the easy-to-tear strip (3) being connected to the bag body (1) in a thermally bonded manner, one end of the easy-to-tear strip (3) being provided with a pinch sheet (31), the part where the bag body (1) and the pinch sheet (31) are thermally bonded being a dotted line-shaped seam (4) provided along the outline of the pinch sheet (31). The invention ensures that a certain technique is required to open the self-sealing bag, effectively preventing children from opening the self-sealing bag and touching articles in the self-sealing bag, avoiding danger.

Description

A ziplock bag with the function of preventing children from playing technical field

[0001] The present invention relates to the technical field of ziplock bags, in particular to a ziplock bag with a function of preventing children from opening.

Background technique

[0002] Ziplock bags are products that can be self-sealed only by interlocking the self-sealing strips at the opening of the bag. It has various advantages such as moisture-proof, waterproof, and pollution-proof. It is used in food, accessories, medicine, cosmetics, frozen food, etc. P-products, chemical medicine and other industries have a wide range of applications.

Summary of the invention

technical problem

[0003] There are usually two types of ziplock bags. One type of ziplock bag is to install a zipper on the self-sealing strip, and pull the zipper back and forth along the self-sealing strip to open and close the mouth of the ziplock bag. For children, it is easy to open the ziplock bag. When the ziplock bag contains items that are dangerous to children, such as jewelry, inedible powder or granules, medicine, etc., children can easily open the ziplock bag. Ingestion of the bag is extremely dangerous; while another type of ziplock bag has no buckle, and only relies on the self-sealing strip to buckle and seal. When opening, pinch the two sides of the bag mouth and pull it outward. Pull open one of the points forcefully, and the entire self-sealing strip will be opened to both sides in turn along the torn position. Therefore, this type of self-sealing bag is also easy to open, and there is a danger of children touching or eating by mistake.

The solution to the problem

Technical solutions

[0004] In order to solve the above-mentioned problems in the prior art, the present invention provides a ziplock bag with a function of preventing children from opening, ensuring that the ziplock bag requires certain skills when opening, and can effectively prevent children from opening and contacting the items in the ziplock bag To avoid danger.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A ziplock bag with a function of preventing children from opening, including a double-sided bag body and a sealing strip provided at the opening of the bag body, both ends of the sealing strip Heat sealing is fixedly connected to both sides of the bag body, the sealing strip includes a first self-sealing strip and a second self-sealing strip. A self-sealing strip and the second self-sealing strip are respectively provided with concave strips and convex ribs that can be buckled and sealed with each other. The upper and lower side lines of the first self-sealing strip are both thermally connected to the bag body, and the first self-sealing strip The lower side line of the second self-sealing strip is thermally connected to the bag body; an easy-to-tear strip is provided at a position between the heat-sealing line of the upper side line of the first self-sealing strip and the concave strip, and the easy-to-tear strip is The bag body is heat-sealed and connected, and a pinch sheet is provided at one end of the easy-to-tear strip, and the part where the bag body and the pinch sheet are heat-bonded is a dashed slit along the contour of the pinch sheet.

[0006] Preferably, the two ends of the easy-to-tear strip extend to be flush with both sides of the bag body, and the two ends of the easy-to-tear strip are thermally connected to both sides of the bag body.

[0007] Preferably, the kneading sheet is located at the heat-sealing line of the side of the bag body, and the knitting seam between the kneading sheet and the bag body is located on the heat-sealing line of the side of the bag body.

[0008] Preferably, a laser marking line is provided on the bag body, the laser marking line is located on the side of the bag body heat-sealed by the first self-sealing strip, and the position of the laser marking line is: The tear strip is at the lower end of the heat-sealing line of the bag body and at the upper end of the concave strip; the two ends of the laser engraved line extend to the inner edge of the heat-sealing line on both sides of the bag body. The laser marking line can make the tear edge of the easy-tear strip straight in the process of tearing, and make the tear edge of the side of the bag neat.

[0009] Preferably, the lower edge of the distance range of the laser scribing tear strip is lmm-5mm, preferably 2mm _°

[0010] Preferably, on the first self-contained strip, on the opposite side of the upper end of the concave strip, a gasket is formed protruding to the outside, and the gasket is heat-sealed and fixed to the side of the corresponding bag body, The gasket is located above the easy-tear strip, and the thickness of the gasket is equal to the thickness of the easy-tear strip. The easy-tear strip has a certain thickness, so the gasket can play a role in supporting the leveling when the easy-tear strip is heat-sealed with the bag body, so that the heat-sealing line between the easy-tear strip and the bag body is flatter, and the appearance of the bag body is more beautiful.

[0011] Preferably, the width of the gap between the easy-to-tear strip and the gasket ranges from 0 mm to 3 mm, preferably 1 mm.

[0012] Preferably, the easy-to-tear strip and the first self-sealing strip are connected by a peelable fit.

[0013] Preferably, at the opening edge of the bag body, the two sides of the bag body are heat-sealed and sealed, and tearing teeth are symmetrically arranged at the heat-sealing lines on both sides of the bag body, and the tearing The cracked tooth is located between the sealing strip and the heat-sealing line of the opening. [0014] Preferably, two parallel concave strips are provided on the first self-sealing strip, and two parallel convex ribs are provided on the second self-sealing strip.

[0015] The principle of use of the present invention is: when opening the ziplock bag, tear it away from the tearing teeth, first tear off the heat-sealing line at the edge of the opening of the bag body; then pinch the pinch sheet with your hand and face the outside of the bag body Pull open, because there is a heat-sealing line between the bag body and the easy-to-tear strip, and there is a gap between the upper end of the easy-to-tear strip and the gasket. The bottom of the easy-to-tear strip has a laser engraved line on the bag body, so the easy-to-tear strip can be combined with the heat-sealed bag The body parts are torn apart at once, and the upper and lower edges of the torn strip are neat. The upper line of the strip is torn along the gap, and the lower line is torn along the laser engraved line; after tearing the strip, one Hold the bag at the lower end of the laser engraved line with one hand, and hold the opening of the bag at the heat-sealing side of the second self-sealing strip with the other hand, pull both hands outward at the same time, starting from the concave strip and the convex rib at the bottom of the sealing strip Pull to open the sealing strip from bottom to top.

[0016] In addition, the force analysis of the present invention when opening is: When the easy-to-tear strip is not torn, only pinch the two sides of the opening of the bag and pull it outwards. The tension point is the concave strip at the upper end, and the tension point of the second self-sealing strip is the heat-sealing line of the bottom line. Therefore, the tension points at the two ends of the entire sealing strip do not overlap, and they are in a dislocation force during the external pulling process, making it difficult to seal The strip is pulled apart; however, when the easy-tear strip is torn and peeled off the first self-sealing strip, pinch the bag at the lower end of the laser engraved line and the bag at the second self-sealing strip at the same time and pull outward, and the tension points at both ends are the lower ends The concave strip and the convex rib have the same force point, so the sealing strip can be easily pulled apart from bottom to top.

The beneficial effects of the invention

Beneficial effect

[0017] The comprehensive effects brought by the utility model include: The utility model has a simple and reasonable structure and is convenient to use. By heat-sealing the upper and lower edges of the first self-sealing strip with the lower edge of the second self-sealing strip, it is ensured that the opening of the bag is pinched When the two sides are pulled, the tensile force points are different, so that the sealing strip cannot be torn. At the same time, a peelable easy-to-tear strip is attached to the upper end of the first self-sealing strip, and the outer side of the easy-to-tear strip is heat-sealed with the bag body, making it easy to tear After the strip is torn, when the bag body part at the lower end of the laser engraved line is pinched and pulled out, it can ensure that the tension point is the same at this time, so that the sealed bag can be easily opened. In summary, when the easy-tear strip is not opened, the sealing strip It cannot be opened. The sealing strip can only be opened after tearing the easy-to-tear strip. Therefore, the torn-to-tear strip also has the function of screening whether the ziplock bag has been opened, so as to screen whether the items in the ziplock bag have been used or taken out . In addition, the ziplock bag can be opened easily only by tearing off the easy-to-tear strip so that the ziplock bag in this application has a certain degree of Skillful, for adults, it is easy to open the ziplock bag, but for children, it has the effect of preventing it from opening, so as to prevent children from accidentally touching or eating the items in the ziplock bag, and avoiding danger; in addition, the ziplock bag The easy-to-tear strip cannot be restored to its original shape after being torn, so it can be used to screen whether the ziplock bag is brand new or whether it has been opened. It also has good application value for identifying whether the ziplock bag is opened for the first time.

Brief description of the drawings

Description of the drawings

[0018] FIG. 1 is a schematic structural view of a side surface with a laser engraved line of a ziplock bag with a function of preventing children from opening according to an embodiment of the present invention.

[0019] FIG. 2 is a schematic structural view of the side surface of the ziplock bag with the function of preventing children from opening without laser marking in an embodiment of the present invention.

[0020] FIG. 3 is a schematic structural view of the inner side surface with laser marking of the ziplock bag with the function of preventing children from opening according to the embodiment of the present invention.

[0021] FIG. 4 is a schematic structural view of the inner surface of the ziplock bag with the function of preventing children from opening without laser marking in an embodiment of the present invention.

[0022] FIG. 5 is a schematic structural view of the A-A section of the ziplock bag with the function of preventing children from opening according to an embodiment of the present invention.

[0023] FIG. 6 is a schematic diagram showing the structure of the A-A section of the ziplock bag with the function of preventing children from opening according to an embodiment of the present invention.

[0024] FIG. 7 is a schematic structural view of an opening method of a ziplock bag with a function of preventing children from opening according to an embodiment of the present invention.

[0025] Wherein, the same components in the drawings are marked with the same reference numerals; the drawings are not drawn according to the actual scale. The best embodiment for implementing the invention

The best mode of the invention

[0026] The utility model is further described below with reference to the drawings and embodiments.

[0027] Invention embodiment

Example

[0028] A ziplock bag with the function of preventing children from opening, comprising a double-sided bag body 1 and a sealing strip 2 provided at the opening of the bag body 1, and two ends of the sealing strip 2 are heat-sealed and fixedly connected to the bag body 1. The sealing strip 2 includes a first self-sealing strip 21 and a second self-sealing strip 22. Two parallel concave strips 211 are provided on the first self-sealing strip 21, and the second self-sealing strip 22 is provided with Parallel to two convex ribs 221, the concave strip 211 and the convex rib 221 are respectively buckled and sealed to form a double sealing line. The upper and lower sides of the first self-sealing strip 21 are both thermally connected to the bag body 1. The lower side line of the second self-sealing strip 22 is thermally connected to the bag body 1; an easy-to-tear strip 3 is provided at a position between the heat-sealing line of the upper side line of the first self-sealing strip 21 and the concave strip 211, and The easy-to-tear strip 3 is thermally connected to the bag body 1, and the easy-to-tear strip 3 is connected to the first self-sealing strip 21 in a peelable fit, and one end of the easy-to-tear strip 3 is provided with a pinch The shape of the pinch sheet 31 can be round, rectangular, butterfly-shaped or drop-shaped, and the shape of the pinch sheet 31 can be changed without affecting the use of the pinch sheet 31. In this embodiment, the shape of the pinch sheet 31 is It is circular, and the position where the bag body 1 and the pinching piece 31 are thermally bonded is a dashed slit 4 along the contour of the pinching piece 31.

[0029] In this embodiment, the two ends of the easy-to-tear strip 3 extend to be flush with both sides of the bag body 1, and the two ends of the easy-to-tear strip 3 are aligned with the sides of the bag body 1. The two sides are heat-sealed and connected; the kneading sheet 31 is located at the heat-sealing line position of the side of the bag body 1, and the kneading sheet 31 and the seam 4 of the bag body 1 are heat-sealed on the side of the bag body 1 on-line.

[0030] In this embodiment, a laser engraved line 5 is provided on the bag body 1, and the laser engraved line 5 is located on the side of the bag body thermally sealed by the first self-sealing strip 21, and the laser engraved line 5 The position is: at the lower end of the heat-sealing line between the easy-tear strip 3 and the bag body 1, and at the upper end of the concave strip 211, the two ends of the laser engraved line 5 extend to both sides of the bag body 1. In addition, the distance between the laser marking line 5 and the lower edge of the easy-tear strip 3 is in the range of 1mm-5mm, in this embodiment 2mm; the laser marking line 5 can make the easy During the tearing process of the tear strip 3, the tear edge of the lower side is straight, so that the tear edge of the side of the bag body 1 is neat.

[0031] In this embodiment, on the first self-sealing strip 21, on the opposite side of the upper end of the concave strip 211, a gasket 212 is formed protruding outward, and the gasket 212 and the corresponding bag body 1 is heat-sealed and fixed, the gasket 212 is located above the easy-tear strip 3, and the thickness of the gasket 212 is equal to the thickness of the easy-tear strip 3; the easy-tear strip 3 has a certain thickness, so The gasket 212 can be used when the easy-tear strip 3 and the bag body 1 are heat-sealed Play the role of supporting the flatness, make the heat-sealing line of the easy-tear strip 3 and the bag body 1 more flat, and make the appearance of the bag body 1 more beautiful; in addition, the gap between the easy-tear strip 3 and the gasket 212 The width ranges from 0mm to 3mm, and in this embodiment is 1mm.

[0032] In this embodiment, at the edge of the opening of the bag body 1, two sides of the bag body 1 are heat-sealed and sealed, and the heat-sealing lines on both sides of the bag body 1 are symmetrically provided with tears. The tearing tooth 6 is located between the sealing strip 2 and the heat sealing line of the opening.

[0033] The working principle of the embodiment of the present invention is: when opening the ziplock bag, tear it from the tearing teeth 6, first tear off the heat-sealing line at the edge of the opening of the bag body 1; pull the pinch piece 31 along the seam 4 Push out, and then pinch the pinch sheet 31 by hand, and pull it out toward the outside of the bag body 1, because there is a heat-sealing line between the bag body 1 and the easy-tear strip 3, and there is a gap between the upper end of the easy-tear strip 3 and the gasket 212 , The easy-tear strip 3 has a laser engraved line 5 on the bag body 1 at the lower end, so the easy-tear strip 3 can be torn apart along with the heat-sealed bag body part, and the upper and lower sides of the torn strip 7 are neat, and the strip 7 The upper line is torn along the gap, and the lower line is torn along the laser marking line 5. After the strip 7 is torn, the end without the pinch piece 31 is still fixed on the side of the bag body 1, and one hand pinches Hold the part of the bag body 1 at the lower end of the laser marking line 5, hold the opening part of the bag body 1 on the heat-sealing side of the second self-sealing strip 22 with the other hand, pull both hands outward at the same time, from the concave strip 211 at the lower end of the sealing strip 2 and The rib 221 starts to pull, thereby opening the sealing strip 2 from bottom to top.

[0034] In addition, the force analysis of the embodiment of the present invention when it is opened is: when the easy-to-tear strip 3 is not torn, only pinch the two sides of the opening of the bag body 1 and pull it outward. The tension point of the self-sealing strip 21 is at the concave strip 211 at the upper end, and the tension point of the second self-sealing strip 22 is at the heat-sealing line of the lower side line. Therefore, the tension points at both ends of the entire sealing strip 2 do not coincide. Under the dislocation force, it is difficult to pull the sealing strip 2 apart; however, when the easy-tear strip 3 is torn and peeled off the first self-sealing strip 21, simultaneously pinch the bag body 1 at the lower end of the laser marking line 5 and the second self-sealing strip 22. The bag body 1 is pulled outward, and the tension points at both ends are the concave strip 211 and the convex rib 221 at the lower end, and the force points are the same, so the sealing strip 2 can be easily pulled apart from bottom to top.

[0035] The comprehensive effects brought by the embodiments of the present utility model include: The utility model has a simple and reasonable structure, and is convenient to use. By heat-sealing the upper and lower edges of the first self-sealing strip 21 and the lower edge of the second self-sealing strip 22, the The tensile force points are different when the two sides of the opening of the bag body 1 are pulled, so that the sealing strip 2 cannot be torn. At the same time, a peelable easy-to-tear strip 3 is attached to the upper end of the first self-sealing strip 21, and the outer side of the easy-to-tear strip 3 It is heat-sealed with the bag body 1, so that after the easy-tear strip 3 is torn apart, when the part of the bag body 1 at the lower end of the laser engraved line 5 is pinched and pulled out, it can be ensured that the tension point is the same at this time, so that the sealed bag can be easily opened; On, when the easy tear strip is not opened, the sealing strip cannot After being opened, the sealing strip can be opened only after the easy-to-tear strip is torn. Therefore, the torn-to-tear strip also has the function of screening whether the ziplock bag has been opened, so as to screen whether the items in the ziplock bag are passively used or taken out. In addition, the action of opening the ziplock bag only by tearing off the easy-to-tear strip 3 makes the ziplock bag in this application have a certain skill in opening. For adults, it is easy to open the ziplock bag, but for children Said it has the effect of preventing it from opening, so as to prevent children from accidentally touching or accidentally eating the items in the ziplock bag, and avoiding danger; in addition, the easy tear strip 3 of the ziplock bag cannot be restored to its original shape after being torn, so it can be used for screening and self-sealing Whether the bag is brand new or whether it has been opened is also of good application value for identifying whether the ziplock bag is opened for the first time.

[0036] Without departing from the scope of the present invention, various improvements can be made to it and equivalents can be used to replace the components therein. For example, in some other embodiments, the number of convex ribs and concave strips can be There are 3 or an integer number greater than 3. Therefore, the concave and convex ribs can be respectively buckled and sealed to form 3 sealing lines, or even more than 3 sealing lines.

[0037] The utility model is described above with reference to the preferred embodiments, but the protection scope of the utility model is not limited thereto, and any technical solutions falling within the scope of the claims are within the protection scope of the utility model . In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any manner.

Claims

[Claim 1] A ziplock bag with the function of preventing children from opening, characterized in that it comprises a double-sided bag body and a sealing strip provided at the opening of the bag body, and both ends of the sealing strip are heat-sealed and fixedly connected to the bag On both sides of the body, the sealing strips include a first self-sealing strip and a second self-sealing strip. The first self-sealing strip and the second self-sealing strip are respectively provided with concave strips and convex ribs that can be buckled and sealed with each other. The upper and lower side lines of the first self-sealing strip are both thermally connected to the bag body, and the lower side line of the second self-sealing strip is thermally connected to the bag body; the heat-sealing line on the upper side line of the first self-sealing strip and An easy-to-tear strip is provided at a position between the concave strips, and the easy-to-tear strip is thermally connected to the bag body, and a pinch sheet is provided at one end of the easy-to-tear strip, and the bag body and the pinch sheet The heat-sealed part is a dashed slit along the outline of the pinch sheet.

[Claim 2] The ziplock bag with a function of preventing children from opening according to claim 1, wherein the two ends of the easy-to-tear strip extend to be flush with both sides of the bag body, and the The two ends of the easy-tear strip are thermally connected to the two sides of the bag body.

[Claim 3] The ziplock bag with the function of preventing children from opening according to claim 2, wherein the pinch sheet is located at the position of the heat-sealing line on the side of the bag body, and the pinch sheet and the The sewn seam of the bag body is located on the side heat-sealing line of the bag body.

[Claim 4] The ziplock bag with the function of preventing children from opening according to claim 1 or 3, characterized in that a laser marking line is provided on the bag body, and the laser marking line is located in the first On the side of the bag body that is heat-sealed with the self-sealing strip, the position of the laser marking line is: at the lower end of the heat-sealing line between the easy-tear strip and the bag body, and at the upper end of the concave strip; The ends extend to the inner edge of the heat-sealing line on both sides of the bag body.

[Claim 5] The ziplock bag with the function of preventing children from opening according to claim 4, wherein the distance between the laser engraved line and the lower edge of the easy-to-tear strip is in the range of 1mm-5mm

[Claim 6] The ziplock bag with the function of preventing children from opening according to claim 4, characterized in that, on the first self-sealing strip, a strip protruding to the outside is formed on the opposite side of the upper end of the concave strip A gasket, the gasket is heat-sealed and fixed to the side of the corresponding bag body, the gasket is located above the easy-to-tear strip, and the thickness of the gasket is equal to the thickness of the easy-to-tear strip

[Claim 7] The ziplock bag with the function of preventing children from opening according to claim 6, wherein the gap width between the easy-to-tear strip and the gasket ranges from 0 mm to 3 mm, preferably 1 mm .

[Claim 8] The ziplock bag with the function of preventing children from opening according to claim 1, wherein the easy-to-tear strip and the first self-sealing strip are connected by a peelable fit.

[Claim 9] The ziplock bag with the function of preventing children from opening according to any one of claims 1-8, characterized in that, at the opening edge of the bag body, two sides of the bag body are heat-sealed and sealed, and In addition, tearing teeth are symmetrically provided at the heat sealing lines on both sides of the bag body, and the tearing teeth are located between the sealing strip and the heat sealing line of the opening.

[Claim 10] The ziplock bag with the function of preventing children from opening according to any one of claim 9, characterized in that, the first self-sealing strip is provided with two parallel grooves, and the second self-sealing strip is Two parallel convex ribs are arranged on the seal.