TW201932375A - Slider ziplock structure and air-tight package structure - Google Patents

Abstract

A slider ziplock structure includes two flexible carriers, at least one first ziplock assembly, at least one second ziplock assembly and a ziplock head. The two flexible carriers are disposed side by side and include two inner surfaces close to each other and two outer surfaces away from each other. The at least one first ziplock assembly and the at least one second ziplock assembly are disposed on the two inner surfaces, respectively. The ziplock head clips a part of the at least one first ziplock assembly and a part of the at least one second ziplock assembly. The ziplock head is adapted to slide back and forth to open or close the at least one first ziplock assembly. When the ziplock head slides back and forth, the at least one second ziplock assembly clipped by the ziplock head closes permanently. An air tight package structure is further provided.

Description

Sliding chain structure and airtight packaging structure

The present invention relates to a sliding chain structure and a hermetic packaging structure, and in particular to a sliding chain structure and a hermetic packaging structure having a good joining effect and a sealing effect.

Currently, wafers are placed in wafer carrier boxes for transfer. Generally, the wafer carrier is placed in a large plastic bag before being transferred, and sealed by a sealer to seal the wafer carrier in the plastic bag. However, the sealing condition of the plastic bag may be affected by the ambient temperature and humidity at the time of sealing, and the plastic bag may not be completely sealed. In addition, the operator needs to break the plastic bag to take out the wafer carrier in the plastic bag, so that the plastic bag can be used only once, resulting in waste of resources and cost. In addition, in the process of transporting the wafer carrier, the wafer carrier is inevitably subjected to vibration or shaking, which may affect the wafer yield in the wafer carrier and even wafer fragmentation.

A sliding chain structure of the present invention comprises two flexible carriers, at least one first zipper assembly, at least one second zipper assembly and a zipper head. The two flexible carriers are arranged side by side with two inner surfaces adjacent to each other and two outer surfaces remote from each other. At least one first zipper assembly is disposed on both inner surfaces of the two flexible carriers. At least one second zipper assembly is disposed on both inner surfaces of the two flexible carriers. The nipper grips a partial region of the at least one first zipper assembly and a partial region of the second at least one second zipper assembly. The nipper is adapted to reciprocately slide to open or close the at least one first zipper assembly, and the at least one second zipper assembly held by the nipper maintains a constant closing during the reciprocating sliding movement.

A hermetic packaging structure of the present invention comprises a bag body, at least one first zipper assembly, at least one second zipper assembly and a zipper head. The bag body has a bag opening and an accommodation space, and the bag mouth is located on one side of the accommodation space. The first zipper assembly is disposed on the inner surface of the bag adjacent to the pocket. The second zipper assembly is disposed on the inner surface of the bag adjacent to the pocket, and the second zipper assembly is located between the first zipper assembly and the receiving space. The nipper grips a partial area of the first zipper assembly and a partial area of the second zipper assembly, and the zipper head is adapted to reciprocately slide along the pocket to open or close the first zipper assembly, and the zipper head is The second zipper assembly held by the nipper maintains a constant closing during reciprocal sliding along the pocket.

The following disclosure provides many different embodiments or examples for implementing different features of the subject matter provided. Specific components of the components and configurations are described below to simplify the present invention. Of course, such components and configurations are merely examples and are not intended to be limiting. For example, in the following description, the formation of the first feature over or over the second feature can include embodiments in which the first feature and the second feature are formed in direct contact, and can also include additional features that can be associated with the first feature Embodiments are formed between the second features such that the first feature and the second feature may not be in direct contact. In addition, the present invention may repeat the graphical element symbols and/or letters in various examples. This repetition is for the purpose of simplicity and clarity, and is not a limitation of the various embodiments and/or configurations discussed.

In addition, for ease of description, spatially relatives such as "under", "below", "lower", "above", "upper", and the like may be used herein. Terminology to describe the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientation depicted in the figures, spatially relative terms are intended to encompass different orientations of the device in use or operation. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may be interpreted accordingly.

1 is a schematic view of a hermetic packaging structure in accordance with an embodiment of the present invention. Referring to FIG. 1, the hermetic packaging structure 100 of the present embodiment includes a bag body 110, a sliding chain structure for sealing the bag body 110, and a buffer box 170 fixed to the bag body 110 for providing a buffering function. The hermetic packaging structure 100 of the present embodiment can be used as a packaging structure for a wafer carrier (not shown), which can seal the wafer carrier in a gas-tight manner relatively simply and quickly, and can be repeated use. In addition, the hermetic packaging structure 100 of the present embodiment can also provide the multi-face buffering effect of the wafer carrier, and effectively reduce the influence of vibration on the wafer in the wafer carrier.

Of course, the application of the hermetic packaging structure 100 is not limited thereto, and any member requiring sealing can be packaged and sealed by the hermetic packaging structure 100 of the present embodiment. In addition, although in the present embodiment, the sliding chain structure that can be opened and closed and normally closed through the zipper head 140 is applied to the airtight packaging structure 100, the above sliding chain structure can also be disposed on any two side flexible carriers. 113 (labeled in Figure 2, the material of the flexible carrier 113 is, for example, a polymer, but not limited thereto).

The hermetic package structure 100 will be described in detail below. As shown in FIG. 1, the bag body 110 includes a bag opening 111 and a receiving space 112, and the bag opening 111 communicates with the receiving space 112 and is located at one side of the receiving space 112 (for example, the upper side in FIG. 1). In the present embodiment, the bag body 110 is exemplified by a plastic bag, but the bag body 110 may be any flexible carrier 113. The material or type of the bag body 110 is not limited thereto. In this embodiment, when the pockets 111 are opened, the size of the pockets 111 can be close to the length and width of the buffer tank 170, so that the operator can put the wafer carrier into the bag body 110 and accommodate the buffer. In the box 170. As shown in FIG. 1, when the bag opening 111 is closed, the edge of the bag opening 111 is straight, and the sliding chain structure is disposed on the bag body 110 near the bag opening 111.

2 is a partial schematic view of the bag body, the first zipper assembly and the second zipper assembly of the hermetic packaging structure of FIG. 1. The partial structure of the inner surface 114 and the outer surface 115 of the bag body 110 of FIG. 1 near the pocket opening 111 is primarily illustrated in FIG. Referring to FIG. 1 and FIG. 2 simultaneously, in the embodiment, the airtight packaging structure 100 further includes at least one first zipper assembly 120, at least one second zipper assembly 130, and a zipper head 140 (shown in FIG. 1). .

In the present embodiment, the airtight packaging structure 100 is exemplified by two first zipper assemblies 120 and one second zipper assembly 130. Of course, the relationship between the number of the first zipper assembly 120 and the second zipper assembly 130 is not limited thereto. In other embodiments, it may also be a combination of a single first zipper assembly 120 and a single second zipper assembly 130, a single first zipper assembly 120 and two second zipper assemblies 130, or A plurality of first zipper assemblies 120 are mated with a plurality of second zipper assemblies 130.

In the present embodiment, the two first zipper assemblies 120 are disposed adjacent the pockets 111 on the inner surfaces 114 of the pockets 110 (ie, the two flexible carriers 113). The second zipper assembly 130 is disposed on the inner surfaces 114 of the bag body 110 (the two flexible carriers 113) adjacent to the pockets 111, and the second zipper assembly 130 is located at the first zipper assembly 120 and the accommodating space 112 ( Marked between Figure 1). In other words, the first zipper assembly 120 will be closer to the pocket opening 111 than the second zipper assembly 130. That is, as seen in FIG. 2, the pocket opening 111 is located above, and the first zipper assembly 120 is positioned further above the second zipper assembly 130.

Each first zipper assembly 120 includes a corresponding two hook strips 122, 124. More specifically, each of the first zipper assemblies 120 includes a hooking strip 122 that is raised toward the top of FIG. 2 and a hooking strip 124 that is slid toward the lower side of FIG. The second zipper assembly 130 includes a corresponding hook rib 132 and a hooking groove 134 that can be embedded in the hooking groove 134. Of course, the forms of the first zipper assembly 120 and the second zipper assembly 130 are not limited thereto. In other embodiments, the first zipper assembly 120 and the second zipper assembly 130 may also be in the form of hook ribs 132 and hooking grooves 134, or the first zipper assembly 120 and the second zipper. Assembly 130 can also be in the form of hook strips 122, 124. Still alternatively, the first zipper assembly 120 and the second zipper assembly 130 may also be in other hooking forms than the foregoing.

In the present embodiment, the zipper head 140 is adapted to reciprocally slide along the pocket opening 111 to open or close the first zipper assembly 120. As can be seen in FIG. 1, if the zipper head 140 moves to the left of FIG. 1 along the edge of the pocket 111, the first zipper assembly 120 is opened, and the zipper head 140 is along the edge of the pocket 111. The right movement of Figure 1 will cause the first zipper assembly 120 to close. Therefore, the state in which the first zipper assembly 120 is closed and opened can be seen from the cross section of the A-A line segment and the cross section of the B-B line segment in Fig. 1, respectively. In the present embodiment, the second zipper assembly 130 held by the zipper head 140 maintains a constant closing during the reciprocal sliding movement along the pocket 111 to ensure airtightness of the hermetic packaging structure 100. Sex. Further explanation below.

3 is a partial cross-sectional view of the hermetic packaging structure of FIG. 1 taken along line A-A. Referring to FIG. 1 and FIG. 3 simultaneously, in the embodiment, the zipper head 140 holds a portion of the bag body 110 close to the bag opening 111. More specifically, the zipper head 140 holds the first zipper. A partial area of the assembly 120 and a partial area of the second zipper assembly 130. As can be clearly seen in FIG. 3, the ferrule head 140 includes an inner top surface 142, two opposite inner wall surfaces 143, a receiving groove 141 surrounded by the inner top surface 142 and the two inner wall surfaces 143, protruding from the inner top The separating member 145 of the face 142 and the two guiding grooves 144 recessed in the two inner wall faces 143. The partial pockets 110 (two flexible carriers 113), the partial regions of the two first zipper assemblies 120, and the partial regions of the second zipper assembly 130 are located within the receiving slots 141.

In the present embodiment, in order to guide the zipper head 140 to slide in the left-right direction with respect to the portion of the bag body 110 close to the bag opening 111, the zipper head 140 can be stably fixed in the bag body 110 in the up and down direction. At the portion of the pocket 111, it does not come up. As can be seen from FIG. 2, the hermetic package structure 100 further includes guiding ribs 150 disposed on the outer surface 115 of the bag body 110 (that is, the flexible carrier 113) and parallel. In the extending direction of the first zipper assembly 120 and the second zipper assembly 130, the two guiding ribs 150 are respectively located in the two guiding grooves 144 of the ferrule head 140 to guide the zipper head 140 relative to the bag body. 110 (flexible carrier 113) slides along the guide rib 150 and has an effect of restricting movement in the up and down direction so that the zipper head 140 does not easily detach from the bag body 110 near the pocket 111 in the up and down direction. . In addition, as can be seen in FIG. 3, the two inner wall surfaces 113 of the zipper head 140 are convex toward each other at a lower portion to support the lower side of the second zipper assembly 130. This configuration can also enable the zipper head 140 to be It will be lifted out of the bag body 110.

As shown in FIG. 3, in the present embodiment, the two first zipper assemblies 120 are located above the guiding ribs 150, and the two inner wall surfaces 143 of the zipper head 140 are located at the positions of the two first zipper assemblies 120. The distance between the two flexible carriers 113 and the two hooking strips 122, 124 of each of the first zipper assemblies 120 is the thickness of the hooks, so that the two inner wall surfaces 143 of the zipper head 140 are in the first clip. The portion of the chain assembly 120 is in contact with the outer surface 115 of the bag body 110 (flexible carrier 113), and the two first zipper assemblies 120 are pressed, and the two hooking strips 122, 124 of the first zipper assembly 120 are thus embedded. Meet each other.

In addition, in the present embodiment, the second zipper assembly 130 is located below the guiding rib 150, and the distance between the two inner wall surfaces 143 of the zipper head 140 at the position where the second zipper assembly 130 is located is also close to The thickness of the hooking rib 132 of the two flexible carrier 113 and the second zipper assembly 130 after the hooking groove is hooked, so that the two inner wall surfaces 143 of the zipper head 140 are located at the second zipper assembly 130 The position of the position also contacts the outer surface 115 of the bag body 110 (flexible carrier 113), and presses the second zipper assembly 130, the hook rib 132 of the second zipper assembly 130 and the hooking groove thereby hooking Hehe. At this time, since both the first zipper assembly 120 and the second zipper assembly 130 are sealed, the three zipper design can make the bag body 110 have a good airtight effect.

4 is a partial cross-sectional view of the hermetic packaging structure of FIG. 1 taken along line B-B. Referring to FIG. 4, the main difference between FIG. 4 and FIG. 3 is that the width of the separating member 145 of FIG. 4 becomes larger, and the two inner wall surfaces 143 of the ferrule head 140 are located between the positions where the two first zipper assemblies 120 are located. The distance is also getting bigger. The wider separating member 145 pulls the two flexible carriers 113 apart, and the two hooking strips 122, 124 of each of the first zipper assemblies 120 are pulled apart. In addition, the distance between the portions of the two inner wall surfaces 143 at the positions where the two first zipper assemblies 120 are located becomes larger (for example, the distance between the inner wall surfaces 143 by the wall thickness of the zipper head 140 at this portion becomes smaller). The two flexible carriers 113 and the hooking strips 122, 124 can be moved in a direction away from each other.

Figure 5 is a cross-sectional view of the zipper head of the hermetic packaging structure of Figure 1 taken along line C-C. Fig. 5 is mainly a view showing a state in which the separating member 145 of the zipper head 140 is cross-sectioned. Referring to FIG. 5, the separating member 145 has a variation in width along the length direction of the zipper head 140. 3 and FIG. 5, the width of the separating member 145 at a small width may be smaller than the total width of the two hooking strips 122, 124 of the first zipper assembly 120 when hooked. 4 and FIG. 5, the width of the separating member 145 at a portion having a larger width is greater than the total width of the two hooking strips 122 and 124 of each of the first zipper assemblies 120 at the time of hooking, so that separation is performed. The piece 145 pulls the two flexible carriers 113 apart, and the two hooking strips 122, 124 of the first zipper assembly 120 are pulled apart.

It is worth mentioning that, in the BB line section of FIG. 4, the distance between the two inner wall surfaces 143 of the zipper head 140 at the position where the second zipper assembly 130 is located is substantially the same as the AA line segment in FIG. The distance between the two inner wall faces 143 of the ferrule head 140 in the section at the location where the second zipper assembly 130 is located. That is, in FIG. 4, when the two hooking strips 122, 124 of the first zipper assembly 120 are pulled apart, the two inner wall surfaces 143 of the zipper head 140 are still at the position of the second zipper assembly 130. The outer surfaces of the two flexible carriers 113 are continuously contacted such that the hooking ribs 132 of the second zipper assembly 130 remain hooked with the hooking grooves. Alternatively, in other embodiments, the distance between the second zipper assembly 130 and the separating member 145 may also be sufficiently far apart that the actuation of the separating member 145 does not affect the second zipper assembly 130. In this way, even if the airtight packaging structure 100 slides the clip head 140 due to vibration during the transportation or the person accidentally pulls the clip head 140, only the first zipper assembly 120 is opened, and the second zipper chain is opened. The assembly 130 can remain closed and still maintain an airtight condition within the bag 110.

In this embodiment, the distance between the guiding rib 150 and the pocket 111 is greater than the distance between any one of the first zipper assembly 120 and the pocket 111, and between the guiding rib 150 and the pocket 111 The distance will be less than the distance between the second zipper assembly 130 and the pocket 111. That is, the guiding rib 150 is projected between the first zipper assembly 120 and the second zipper assembly 130 when projected toward the inner surface 114 of the bag body 110. Of course, in other embodiments, the distance between the guiding rib 150 and the pocket 111 may be greater than the distance between the second zipper assembly 130 and the pocket 111. The distance relationship between the guiding rib 150, the first zipper assembly 120, the second zipper assembly 130 and the pocket 111 is not limited thereto.

Figure 6 is a partial schematic view of the hermetic package structure of Figure 1. It should be noted that FIG. 6 specifically omits the area in the middle of the bag opening 111 to clearly show the design at both ends of the bag opening 111. Moreover, in order to indicate the relative position between the zipper head 140 and the bag mouth when sliding to the leftmost and rightmost ends, the zipper head 140 is intentionally shown to the upper side of FIG. 6, and the two ends of the bag opening 111 are exposed. In the design, in fact, the ferrule head 140 will be held at the pocket opening 111 as shown in Fig. 1, and the sealing portion 160 of the shielding portion.

Referring to FIG. 6, in order to further increase the airtight effect of the airtight packaging structure 100, when the zipper head 140 is pulled to the bottom in the closing direction, the tail end of the pocket opening 111 is not closed and the probability of air leakage occurs. In the present embodiment, the first zipper assembly 120 and the second zipper assembly 130 are sealed at the opposite ends from the corresponding portions of the bag body 110 to form two sealing regions 160. More specifically, the hooking strip 122 of each first zipper assembly 120 is sealed at one end of the hooking strip 124 at one end thereof, and the other end of the hooking strip 122 is sealed at the other end of the hooking strip 124, and One end of the hooking rib 132 of the two zipper assembly 130 is sealed at one end of the hooking groove 134, and the other end of the hooking rib 132 is sealed at the other end of the hooking groove 134. Therefore, when the zipper head 140 is pulled to the bottom in the closing direction, a portion of the zipper head 140 (for example, the widest portion of the separating member 145 of the zipper head 140) can be pulled to the sealing portion 160 and partially overlapped in the sealing portion. 160, to ensure that the two first zipper assemblies 120 and the second zipper assembly 130 at the junction of the tail end of the pocket 111 and the sealing zone 160 can be pressed by the inner wall surfaces 143 of the zipper head 140 to avoid leakage.

In the present embodiment, the length of each sealing zone 160 is greater than half the length of the ferrule head 140. In other embodiments, the length of the sealing zone 160 may also be equal to or less than half the length of the zipper head 140. As long as the zipper head 140 is pulled to the bottom in the closing direction, the two first zipper assemblies 120 and the second zipper assembly 130 at the rear end of the pocket opening 111 can be pressed by the inner wall surfaces 143 of the zipper head 140 to be closed.

In addition, in the present embodiment, the airtight packaging structure 100 further includes two blocking portions 162 disposed outside the two sealing regions 160 away from each other. As can be seen from FIG. 1, the thickness of the blocking portion 162 is large. In this embodiment, the thickness of the blocking portion 162 may be greater than the average width of the receiving groove 141 of the zipper head 140. Therefore, the zipper head 140 may be blocked by the blocking portion 162 without slipping out of the bag body 110. The two stop portions 162 located at both ends of the pocket opening 111 can limit the sliding range of the zipper head 140.

It is worth mentioning that when the hermetic packaging structure 100 of the present embodiment is applied to seal the wafer carrier, the operator only needs to place the wafer carrier in the hermetic packaging structure 100 of the embodiment, and the zipper is The head 140 is pulled to the positioning direction, and the two first zipper assemblies 120 and the second zipper assembly 130 can be closed to achieve airtightness, which is very convenient in operation and saves process and labor costs. Moreover, even if the zipper head 140 slides due to vibration during the transportation or the person accidentally pulls the zipper chain 140, only the first zipper assembly 120 is opened, and the second zipper assembly 130 can remain closed even while still The inside of the bag body 110 can be maintained in an airtight state. If the wafer carrier box needs to be taken out of the airtight packaging structure 100, the operator only needs to pull the zipper head 140 to the opening direction, and then force the bag body 110 to be pulled apart, and the second zipper assembly 130 can be Unhook. The hermetic packaging structure 100 of the present embodiment can be reused, and has economic and environmental benefits.

In addition, as can be clearly seen from FIG. 1, the bag body 110 of the hermetic packaging structure 100 of the present embodiment is fixed in the buffer box 170. The buffer tank 170 is, for example, a gas column box composed of a gas column. The gas column box may be surrounded by a gas column bottom surface and four gas column sides connected to the gas column bottom surface. Of course, the shape of the air column box is not limited thereto. In other embodiments, the air column box may also be cylindrical, polygonal or irregular. In addition, in other embodiments, the material of the buffer tank 170 may also be foam, rubber, silicone, or any combination of the above and the air column. The buffer box 170 can provide a good buffering effect for the wafer carrier in the bag body 110, and can effectively avoid damage or fragmentation of the wafer in the wafer carrier box due to vibration or shaking.

In this embodiment, the bag body 110 and the buffer box 170 can be fixed together by means of bonding, integral injection molding, thermocompression bonding, etc. In other embodiments, the bag body 110 can also be placed but not fixed in the buffer. Such a configuration within the tank 170 can also provide the effect of buffering the wafer carrier in the bag 110.

The foregoing has outlined the features of several embodiments, such that those of ordinary skill in the art can understand the invention. It will be appreciated by those of ordinary skill in the art that the present invention can be readily utilized as a basis for designing or modifying other processes and structures for the same purposes and/or advantages of the embodiments disclosed herein. It should be understood by those of ordinary skill in the art that the present invention is not limited to the spirit and scope of the invention, and various changes and substitutions may be made herein without departing from the spirit and scope of the invention. And changes.

100‧‧‧ airtight packaging structure

110‧‧‧ bag body

111‧‧‧ pocket

112‧‧‧ accommodation space

113‧‧‧Flexible carrier

114‧‧‧ inner surface

115‧‧‧ outer surface

120‧‧‧First zipper assembly

122, 124‧‧‧ hook strips

130‧‧‧Second zipper assembly

132‧‧‧ hook ribs

134‧‧‧ hooking groove

140‧‧‧Chain head

141‧‧‧ accommodating slot

142‧‧‧ inside top

143‧‧‧ inner wall

144‧‧‧ guiding groove

145‧‧‧Separate parts

150‧‧‧ guiding ribs

160‧‧‧ Sealed area

162‧‧‧ blocking part

170‧‧‧buffer box

1 is a schematic view of a hermetic packaging structure in accordance with an embodiment of the present invention. 2 is a partial schematic view of the bag body, the first zipper assembly and the second zipper assembly of the hermetic packaging structure of FIG. 1. 3 is a partial cross-sectional view of the hermetic packaging structure of FIG. 1 taken along line A-A. 4 is a partial cross-sectional view of the hermetic packaging structure of FIG. 1 taken along line B-B. Figure 5 is a cross-sectional view of the zipper head of the hermetic packaging structure of Figure 1 taken along line C-C. Figure 6 is a partial schematic view of the hermetic package structure of Figure 1.

Claims (10)

A sliding chain structure comprising: two flexible carriers disposed side by side with two inner surfaces adjacent to each other and two outer surfaces away from each other; at least one first zipper assembly disposed on the two flexible carriers On the two inner surfaces; at least one second zipper assembly disposed on the two inner surfaces of the two flexible carriers; and a zipper head holding the portion of the at least one first zipper assembly a region and a partial region of the at least one second zipper assembly, the zipper head adapted to reciprocate to open or close the at least one first zipper assembly, and the zipper head is slidably reciprocating The at least one second zipper assembly held by the zipper head maintains a constant closure. The sliding chain structure of claim 1, further comprising: a guiding rib disposed on an outer surface of the flexible carrier and parallel to the at least one first zipper assembly and the at least one An extending direction of the two zipper assemblies, the zipper head including guiding grooves corresponding to the guiding ribs. The sliding chain structure according to claim 1, wherein the at least one first zipper assembly and the at least one second zipper assembly are formed at opposite ends together with corresponding portions of the two flexible carriers. Two sealing zones, and each of the sealing zones has a length greater than half the length of the zipper head. The sliding chain structure of claim 1, further comprising: two blocking portions disposed outside the two sealing regions and away from each other, wherein the zipper head has a receiving groove, the at least one a partial region of a zipper assembly and a partial region of the at least one second zipper assembly are located in the receiving groove, the thickness of the two blocking portions being greater than an average width of the receiving groove of the zipper head, Limiting the sliding range of the zipper head. A hermetic packaging structure comprising: a bag body having a bag opening and a receiving space, the bag opening being located at a side of the receiving space; at least one first zipper assembly disposed adjacent to the bag opening On the inner surface of the bag body; at least one second zipper assembly disposed on the inner surface of the bag body adjacent to the bag mouth, the at least one second zipper assembly being located in the at least one first clip Between the chain assembly and the receiving space; and a zipper head clamping a partial region of the at least one first zipper assembly and a partial region of the at least one second zipper assembly, the zipper head being adapted Reciprocatingly sliding along the pocket opening to open or close the at least one first zipper assembly, and the zipper head is held by the nipper during reciprocal sliding along the pocket opening The at least one second zipper assembly maintains a constant closure. The airtight packaging structure of claim 5, further comprising: a guiding rib disposed on an outer surface of the bag body and parallel to the at least one first zipper assembly and the at least one An extending direction of the two zipper assemblies, the zipper head including guiding grooves corresponding to the guiding ribs. The hermetic packaging structure of claim 5, wherein the at least one first zipper assembly and the at least one second zipper assembly form two at a portion opposite to the corresponding portion of the bag. a sealing zone, and each of the sealing zones has a length greater than half the length of the zipper head. The airtight packaging structure of claim 7, further comprising: two blocking portions disposed outside the two sealing regions and away from each other, wherein the zipper head has a receiving groove, the at least one a partial region of the first zipper assembly and a partial region of the at least one second zipper assembly are located in the accommodating groove, the thickness of the two blocking portions being greater than an average width of the accommodating groove of the zipper head, To limit the sliding range of the zipper head. The airtight packaging structure of claim 5, further comprising: a buffer box, the bag body being fixed in the buffer box. The airtight packaging structure according to claim 9, wherein the buffer tank is composed of a gas column, foam, rubber, silicone or a combination thereof.