CN209760140U - Water-absorbing expansion bag - Google Patents
Water-absorbing expansion bag Download PDFInfo
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- CN209760140U CN209760140U CN201920148023.5U CN201920148023U CN209760140U CN 209760140 U CN209760140 U CN 209760140U CN 201920148023 U CN201920148023 U CN 201920148023U CN 209760140 U CN209760140 U CN 209760140U
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- water
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- bag body
- swellable
- lifting
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Abstract
An object of the utility model is to provide a be convenient for carry and also can set out the water inflation bag of take the altitude with less quantity. The water-absorbing expansion bag (1) comprises a water-permeable bag body (2) and a lifting belt (3) arranged outside the bag body. The bag body is rectangular parallelepiped, has a height of 150mm or more and less than 300mm, a width of 300mm or more and 500mm or less, and a depth of 150mm or more and 300mm or less. The bag contains a water-absorbent resin (40) therein. The lifting belt (3) comprises a mounting part (33) mounted on the bag body and lifting belt parts (31, 32) continuously formed from the mounting part. The mounting portion (33) is mounted along the front surface (21), the bottom surface (22), and the back surface (22) of the bag body.
Description
Technical Field
The utility model relates to a water-absorbing expansion bag, in particular to a water-absorbing expansion bag which comprises a water-permeable bag body and a lifting belt arranged outside the bag body.
background
In general, a water-swellable bag is used as an emergency countermeasure in case of a flood or a waterproof countermeasure in civil engineering. As such a water-swellable bag, for example, japanese patent laid-open publication nos. 2015-83757 (patent document 1) and 2009-293260 (patent document 2) are known.
Patent documents 1 and 2 disclose a water-swellable bag in which a bag body is formed in a rectangular parallelepiped shape and a water-absorbent resin is accommodated in the bag body. It is also disclosed that the water-swellable bags are used in an overlapping manner.
documents of the prior art
Patent document 1: japanese patent laid-open publication No. 2015-83757
patent document 2: japanese laid-open patent publication No. 2009-293260
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved by the utility model
In order to make the water-swellable bags of patent documents 1 and 2a certain height, it is necessary to stack a plurality of water-swellable bags one above the other, and therefore, a large number of water-swellable bags are required.
the water-swellable bag of patent document 1 is not provided with a lifting band. In addition, although the water-swellable bag of patent document 2 is provided with a strap, the strap is provided along the thickness direction of the side surface, and therefore, it is difficult to carry the bag.
In order to solve the above problems, an object of the present invention is to provide a water-swellable bag that is easy to handle and can be set to a certain height even in a small number.
Means for solving the problems
The utility model discloses a water-absorbing expansion bag includes the bag body of water permeability and installs the area of carrying of the outside of the bag body. The bag body is in a rectangular parallelepiped shape and includes a bottom surface, a front surface and a back surface standing from a long side of the bottom surface, a pair of side surfaces standing from a short side of the bottom surface, and a top surface facing the bottom surface, the height of the bag body is 150mm or more and less than 300mm, the width of the bag body is 300mm or more and 500mm or less, and the depth of the bag body is 150mm or more and 300mm or less. The bag body contains a water-absorbent resin therein, and the lifting band includes a mounting portion mounted on the bag body and a lifting band portion formed continuously from the mounting portion, the mounting portion being mounted along the front surface, the bottom surface, and the back surface of the bag body.
According to the water-swellable bag of the present embodiment, since it is easy to carry and can be placed vertically, a certain height can be set even with a small number of bags, and the number of water-swellable bags to be used can be reduced.
as a general water-swellable bag, a water-swellable bag having a flat rectangular parallelepiped shape disclosed in patent documents 1 and 2 is known. The water-absorbing expansion bag is provided with a plurality of upper and lower layers which are mutually staggered. Therefore, as described in the water-swellable bags of the present embodiment, in order to reduce the number of water-swellable bags to be used, it is not easily conceivable by those skilled in the art to form the water-swellable bags in a laterally long shape that can stand alone.
Preferably, the bag is formed of a nonwoven fabric subjected to hydrophilic treatment.
preferably, all edge portions of the side surfaces of the bag body are hemmed with the front surface, the back surface, the bottom surface, and the top surface adjacent thereto by the tape member.
Preferably, the water-absorbent resin is a water-absorbent polymer.
Preferably, the upper part of the bag body is respectively provided with a rope belt for connecting other adjacent water-absorbing expansion bags.
Preferably, the pair of the lifting portions are provided, one end portion of the pair of the lifting portions extends from the front surface, and the other end portion of the pair of the lifting portions extends from the rear surface.
Preferably, the pair of strap portions are provided, one end portion of the strap portion extending from the front surface and the other end portion extending from the back surface.
Effect of the utility model
According to the utility model discloses, can provide one kind and be convenient for carry and also can set out the water inflation bag of take the altitude with less quantity.
Drawings
Fig. 1 is a view showing a water-swellable bag according to a first embodiment of the present invention, fig. 1(a) is a front view, and fig. 1(b) is a cross-sectional view taken along the line i (b) -i (b) in fig. 1 (a).
Fig. 2 is a view showing a state after the water-swellable bag according to the first embodiment of the present invention is expanded, fig. 2(a) is a perspective view, and fig. 2(b) is a sectional view corresponding to fig. 1 (b).
Fig. 3 is a view showing an example of the installation state of the water-swellable bag according to the first embodiment of the present invention.
Fig. 4 is a view showing an example of another installation state of the water-swellable bag according to the first embodiment of the present invention.
Fig. 5 is a perspective view showing a water-swellable bag according to a second embodiment of the present invention.
description of reference numerals:
1. 1A water-swellable bag, 2 bag body, 33A strap, 20 bottom surface, 21 front surface, 22 back surface, 23, 24 side surface, 25 top surface, 26 end portion, 27 strap member, 31A first strap part, 32A second strap part, 33 attachment part, 33A first attachment part, 34A second attachment part, 40 water-absorbent resin (water-absorbent polymer), 50 string, 100 vestibule, 110 waterway, 111 drainage ditch.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and description thereof will not be repeated.
< first embodiment >
(construction of Water-swellable bag)
An example of the water-swellable bag 1 of the present embodiment will be described with reference to fig. 1 and 2. In fig. 1, the height direction indicated by an arrow L1 is the vertical direction, the width direction indicated by an arrow L2 is the horizontal direction, and in fig. 2(b), the direction indicated by an arrow L3 is the depth direction.
As shown in fig. 1, the water-swellable bag 1 of the present embodiment includes a bag body 2 and a lifting band 3 attached to the outer surface of the bag body 2. The bag 2 contains a water-absorbent resin 40 therein. Therefore, the water-swellable bag 1 is flat as shown in fig. 1(b) in an unused state (before water immersion), but has a rectangular parallelepiped shape as shown in fig. 2(a) and 2(b) in a used state (after water immersion).
The bag body 2 has water permeability, and for example, nonwoven fabric, woven fabric, or the like can be used. The bag body 2 is preferably formed of a nonwoven fabric subjected to hydrophilic treatment. This makes it possible to facilitate the contact of the water-absorbent resin 40 contained in the bag body 2 with moisture and to prevent the water-absorbent resin 40 from leaking to the outside of the bag body 2.
the bag body 2 is in a rectangular parallelepiped shape. Specifically, the bag body 2 includes a bottom surface 20, a front surface 21 and a back surface 22, the front surface 21 and the back surface 22 rising from the long side of the bottom surface 20, a pair of side surfaces 23 and 24 rising from the short side of the bottom surface 20, and a top surface 25 facing the bottom surface 20. More specifically, the bottom surface 20, the front surface 21, the back surface 22, and the top surface 25 are formed by one continuous nonwoven fabric, and are sewn to the end portions 26 of the central portion of the top surface 25. The bottom surface 20, the front surface 21, the back surface 22, and the top surface 25 may be formed of separate nonwoven fabrics, and in this case, it is preferable that all the edge portions are rolled with a tape member. The rectangular parallelepiped shape includes not only a shape in which all adjacent surfaces intersect at right angles, but also a shape in which the adjacent surfaces are inclined to such an extent that they can stand alone or are expanded into an arc shape.
The pair of side surfaces 23 and 24 are formed of a nonwoven fabric different from the bottom surface 20, the front surface 21, the back surface 22, and the top surface 25. The pair of side faces 23, 24 is rectangular. All the edges of the side surfaces 23 and 24 of the bag body 2 are stitched to the adjacent front surface 21, back surface 22, bottom surface 20, and top surface 25 by tape members 27 and 28. This allows the bottom surface 20, the front surface 21, the back surface 22, the top surface 25, and the side surfaces 24 to be firmly sewn together, and the outer shape of the bag body 2 to be maintained in a rectangular parallelepiped shape.
As shown in fig. 1, the bag body 2 has a laterally long shape in front view. For example, the height L1 of the bag body 2 is 150mm or more and less than 300mm, preferably 200mm or more and 300mm or less. The height is 150mm or more, preferably 200mm or more, and the function thereof can be sufficiently exhibited as an initial countermeasure against a flood disaster. The width L2 of the bag body 2 is 300mm to 500 mm. When the width is 300mm or more, since it is larger than the height, it can be stably placed vertically. The depth L3 of the bag body 2 is 150mm to 300 mm. This enables the user to stand alone stably. Specifically, the height L1 of the outer shape of the bag body 2 of the present embodiment is 200mm, the width L2 is 350mm, and the depth L3 is 250mm, but the width is not limited to this as long as it is larger than the height.
As described above, the bag body 2 contains the water-absorbent resin 40. The water-absorbent resin 40 absorbs moisture several times to several hundred times its own weight and swells. The water is preferably clear water, but may be water that has been used, for example, after washing vegetables. The water-absorbent resin 40 of the present embodiment is a water-absorbent polymer mainly composed of sodium polyacrylate, for example. The water-absorbent resin 40 is, for example, in a granular form and is contained in a granular state inside the bag body 2. The ratio of the volume of the water-absorbent polymer 40 after absorbing moisture to the volume of the water-absorbent polymer 40 before absorbing moisture is preferably 100 times or more and 200 times or less, and more specifically, is preferably about 150 times. Thus, the water is absorbed by the water-absorbent polymer 40, and the bag body 2 is formed in a rectangular parallelepiped shape. The water-absorbent polymer 40 contained in the bag 2 is, for example, 100g or more and 200g or less, specifically 120 g.
As described above, the height L1 of the bag body 2 of the present embodiment is 200mm, the width L2 is 350mm, and the depth L3 is 250mm, so the volume of the bag body 2 is 17500cm 3, and considering that the bag body 2 is formed of a nonwoven fabric, the volume of the bag body 2 is about 18000em 3, and the volume after absorbing moisture is about 150 times larger than the volume before absorbing moisture of the water-absorbent polymer 40 used in the present embodiment, and therefore, when 120g of the water-absorbent polymer 40 is used, the water-absorbent polymer 40 absorbing moisture is about 18000g, and thereby, as shown in fig. 2, the water-absorbent polymer 40 absorbing moisture can be filled in the bag body 2.
By filling the inside of the bag body 2 with the water-absorbent polymer 40 having sufficiently absorbed moisture in this way, the bag body 2 can be kept in a rectangular parallelepiped shape. As shown in fig. 1(b), the water-absorbent polymer 40 is contained in the state of particles directly inside the bag body 2, but may be contained in a small bag which can be easily broken by moisture and then inside the bag body 2.
Referring to fig. 2(a), a string 50 is provided on the upper portion of the bag body 2. Specifically, the string 50 is sewn to the corner where the top surface 25 and the side surface 24 of the bag body 2 meet. Similarly, a string (not shown) is sewn to a position facing the string 50, specifically, to a corner where the top surface 25 and the side surface 23 of the bag body 2 meet. The string 50 is connected with other adjacent water-absorbing expansion bags 1. Details thereof will be described later.
A lifting belt 3 is arranged outside the bag body 2. The lifting band 3 may be formed of, for example, one band-shaped member, or may be formed by sewing a plurality of band-shaped members. The lifting band 3 may be formed by, for example, forming a non-woven fabric of the same material as the bag body 2 into a band shape and overlapping a plurality of the non-woven fabrics in the band shape.
The lifting strap 3 includes a mounting portion 33 mounted on the bag body 2 and a pair of first and second lifting strap portions 31 and 32 formed continuously from the mounting portion 33. The mounting portion 33 is mounted along the front surface 21, the bottom surface 20, and the back surface 22 of the bag body 2. Specifically, as shown by the broken lines in fig. 1(a) and 2(a), the attachment portion 33 is sewn to the front surface 21, the bottom surface 20, and the rear surface 22 with a thread. In other words, the lifting strap 3 is formed as a ring-shaped member, and becomes the first and second lifting strap parts 31, 32 whose folded-back portions form an inverted "U" shape in front view. Both end portions of the first strap part 31 extend from the front face 21. In addition, both end portions of the second strap part 32 extend from the back surface 22. The mounting portion 33 is provided at a position halfway in the vertical direction between the front surface 21 and the rear surface 22, but may be provided at an upper end edge of the front surface 21 and the rear surface 22.
since the attachment portion 33 is sewn along the front surface 21, the bottom surface 20, and the back surface 22 of the bag body 2, the lifting band 3 holds the bottom surface 20 from below when the first and second lifting band portions 31 and 32 are lifted, and therefore, the bottom surface 20 can be prevented from drooping downward by gravity. Further, since the attaching portion 33 is provided only on the front surface 21 and the rear surface 22 and is not provided on the top surface 25, the rectangular parallelepiped water-swellable bag 1 can be held even if the first and second lifting tape portions 31, 32 are lifted.
(method of Using Water-swellable bag)
Next, a method of using the water-swellable bag 1 of the present embodiment will be described.
First, a container larger than the outer shape of the water-swellable bag 1 is prepared, and water is injected into the container. As shown in fig. 1, the flat water-swellable bag 1 is completely immersed in the water in the container. The water-swellable pouch 1 is kneaded open so that water reaches the water-absorbent resin 40 contained in the water-swellable pouch 1. The water-swellable bag 1 is left in a state of being immersed in water for, for example, about 3 to 5 minutes. As a result, the water-absorbent resin 40 absorbs water, and the bag body 2 of the water-swellable bag 1 has a rectangular parallelepiped shape as shown in fig. 2.
Subsequently, the first and second lifting tape parts 31, 32 of the water-swellable bag 1 are lifted and transported to the installation site. The water-swellable bag 1 that has absorbed water and has a rectangular parallelepiped shape weighs about 15kg, but is easy to transport because of the first and second grip portions 31 and 32. When a plurality of water-swellable bags 1 are arranged and placed, the string 50 (fig. 2(a)) of the adjacent water-swellable bags 1 is tied and fixed.
when the water-swellable bag 1 is no longer needed, a dehydrating agent such as calcium chloride, salt, etc. is dissolved in water in a small amount and sprinkled on the water-swellable bag 1. This can cause the water-absorbent swelling bag 1 to contract quickly by starting the dehydration from the water-absorbent resin 40. The water-absorbing expansion bag 1 after the dehydration can be discarded as common garbage.
As described above, by using the water-absorbent resin 40, it is not necessary to fill the bag body 2 with soil or sand, the water-absorbent resin 40 is light in weight and easy to store before water absorption, and the water-absorbent resin 40 has a heavy rectangular parallelepiped shape after water absorption, so that a water-swellable bag can be easily obtained. Further, since the strap 3 is attached, it is easy to use even if it has a rectangular parallelepiped shape, and it can be easily transported to an installation place.
(method of setting Water-swellable bag)
Referring to fig. 3 and 4, a method of installing the water-swellable bag 1 having a rectangular parallelepiped shape will be described.
Fig. 3 is a view showing three water-swellable bags 1 provided in the hallway 100. The front width L4 of the entrance 100 is 900mm, for example. Since the width L2 of the water-swellable bag 1 of the present embodiment is 350mm, only three water-swellable bags 1 need to be provided, and water immersion from the hallway 100 can be prevented. In general, the width of the front face of a building is designed to be about 900mm in many cases. In addition, generally, the height of 200mm can sufficiently prevent the flooding due to the general flood. Therefore, in general buildings, three water-swellable bags 1 according to the present embodiment are prepared in order to prevent flooding due to a general flood. Thus, the water-swellable bags 1 of the present embodiment can be installed at a constant height even when the number thereof is small, and can effectively cope with urban initial floods.
fig. 4 is a diagram showing a state in which a plurality of water-swellable bags 1 are provided in the water path 110. When it is not desired to cause water to flow into the drainage ditch 111 provided in the water path 110, a plurality of water swelling pockets 1 are provided around the drainage ditch 111 so as to surround the drainage ditch 111. At this time, the side surfaces 24 of the water-swellable bag 1 are brought into close contact with each other so that water does not leak between the water-swellable bag 1 and the water-swellable bag 1. Since the water swelling bag 1 of the present embodiment has a rectangular parallelepiped shape, even if it is installed in the water channel 110, water does not enter the drainage ditch 111 from the gap between the adjacent water swelling bags 1.
(second embodiment)
An example of the structure of the water-swellable bag 1A in the second embodiment will be described with reference to fig. 5. Only the differences between the second embodiment and the water-swellable bag 1 shown in the first embodiment will be described in detail below.
The first embodiment differs from the second embodiment in a lifting belt 3A. The lifting strap 3 of the first embodiment is formed by one endless member, whereas the lifting strap 3A of the second embodiment is formed by two endless members.
The lifting strap 3A of the present embodiment includes first and second attaching portions 33A, 34A attached to the bag body 2, and a pair of first and second lifting strap portions 31A, 32A formed continuously from the attaching portions 33A, 34A. In the second embodiment, one end of the first and second strap parts 31A, 32A of the strap 3A extends from the front surface 21, and the other end thereof extends from the rear surface 22. The first strap part 31A and the first attachment part 33A are provided continuously, and the second strap part 32A and the second attachment part 34A are provided continuously. The first strap part 31A and the second strap part 32A are attached so as to be spaced apart in the left-right direction.
In the first and second embodiments, a pair of the belt lifting portions 31, 31A, 32A is provided, but at least one of them may be provided.
The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the embodiments shown in the drawings. For the illustrated embodiment. As described in the claims, the present invention is not limited to the above embodiments, and various modifications and variations can be made to the embodiments within the same or equivalent meaning and scope as the claims.
Claims (7)
1. The utility model provides a water inflation bag, its includes the bag body of water permeability and installs the area of carrying in the outside of the bag body, the characterized in that of water inflation bag:
The bag body is in a rectangular parallelepiped shape, the bag body includes a bottom surface, a front surface and a back surface rising from a long side of the bottom surface, a pair of side surfaces rising from a short side of the bottom surface, and a top surface facing the bottom surface, the height of the bag body is 150mm or more and less than 300mm, the width of the bag body is 300mm or more and 500mm or less, the depth of the bag body is 150mm or more and 300mm or less,
The bag body contains a water-absorbent resin inside,
The lifting belt comprises a mounting part mounted on the bag body and a lifting belt part continuously formed from the mounting part,
The mounting portion is along the bag body the front face, the bottom face and the back face mounting.
2. The water-swellable bag of claim 1,
The bag body is formed of a nonwoven fabric subjected to hydrophilic treatment.
3. The water-swellable bag of claim 1 or 2,
All edge portions of the side surfaces of the bag body are hemmed with the front surface, the back surface, the bottom surface, and the top surface which are adjacent to each other by a tape member.
4. The water-swellable bag of claim 1 or 2,
The water-absorbent resin is a water-absorbent polymer.
5. The water-swellable bag of claim 1 or 2,
The upper part of the bag body is respectively provided with a rope belt used for connecting other adjacent water-absorbing expansion bags.
6. The water-swellable bag of claim 1 or 2,
The belt lifting part is provided with a pair of belt lifting parts,
Both end portions of one of the pair of the strap lifting portions extend from the front surface,
The other end of the pair of the lifting belt parts extends from the back surface.
7. The water-swellable bag of claim 1 or 2,
the belt lifting part is provided with a pair of belt lifting parts,
one end of the strap portion extends from the front surface, and the other end of the strap portion extends from the rear surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920148023.5U CN209760140U (en) | 2019-01-28 | 2019-01-28 | Water-absorbing expansion bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920148023.5U CN209760140U (en) | 2019-01-28 | 2019-01-28 | Water-absorbing expansion bag |
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| Publication Number | Publication Date |
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| CN209760140U true CN209760140U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920148023.5U Active CN209760140U (en) | 2019-01-28 | 2019-01-28 | Water-absorbing expansion bag |
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| CN (1) | CN209760140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111560989A (en) * | 2020-06-04 | 2020-08-21 | 深圳市维特耐新材料有限公司 | Polypropylene non-woven water plugging bag with hydrophilicity and water permeability and water plugging method |
-
2019
- 2019-01-28 CN CN201920148023.5U patent/CN209760140U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111560989A (en) * | 2020-06-04 | 2020-08-21 | 深圳市维特耐新材料有限公司 | Polypropylene non-woven water plugging bag with hydrophilicity and water permeability and water plugging method |
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