CN210392043U - Leak-proof valve bag - Google Patents
Leak-proof valve bag Download PDFInfo
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- CN210392043U CN210392043U CN201921000533.4U CN201921000533U CN210392043U CN 210392043 U CN210392043 U CN 210392043U CN 201921000533 U CN201921000533 U CN 201921000533U CN 210392043 U CN210392043 U CN 210392043U
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- sealing strip
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Abstract
The utility model discloses a leak-proof valve bag, which comprises a side wall, a top seal and a bottom seal; the inner part of the side wall is hollow; the top seal and the bottom seal are respectively arranged at the upper end and the lower end of the side wall and respectively seal the upper end and the lower end of the inner cavity of the side wall; and one side of the top end of the side wall is provided with a valve port communicated with the inner cavity. The utility model discloses the structure is ingenious, sets up both ends about the side wall respectively through the overseal and the underseal, and the structure is simple and convenient, replaces conventional valve port bag to pass through the enclosed construction that the fifty percent discount of side wall tip was bonded, and it is better to seal the effect, effectively avoids often the condition of leaking the powder appearing in valve port bag side wall top and bottom when the likepowder thing of splendid attire, directly seals the side wall both ends through the overseal and the underseal, simplifies production processes, and it is more convenient to produce, effectively improves production efficiency.
Description
Technical Field
The utility model relates to a valve port bag field especially relates to a leak protection valve port bag.
Background
The valve bag is used for containing bulk materials such as cement, gypsum, granular materials, animal feed and the like. In the prior art, the side wall of the valve bag is a hollow body formed by surrounding four side walls, the two ends of the hollow body are provided with upright end parts, preferably cross-shaped end parts, the end parts of the side wall are folded and then bonded through a bonding agent, so that the end parts are closed, however, the end part of the hollow body is not strong in bearing force, the bag is easy to break, powder is easy to leak at the seam of the end part, and then, in order to solve the problems of bag breaking and powder leakage, a reinforcing layer is added to the end part to play a supporting role, but because the end part is formed by folding, the seam is inevitably more, and the situation of powder leakage cannot be avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can effectively avoid tip leak protection valve port bag of powder.
Realize the utility model discloses the technical scheme of purpose is: a leak-proof valve bag comprises a side wall, a top seal and a bottom seal; the inner part of the side wall is hollow; the top seal and the bottom seal are respectively arranged at the upper end and the lower end of the side wall and respectively seal the upper end and the lower end of the inner cavity of the side wall; one side of the top end of the side wall is provided with a valve port communicated with the inner cavity, and the front side and the rear side of the top of the side wall are fixed by sewing first cotton threads.
Preferably, the top seal comprises a first top sealing strip; the rear side of the first top sealing belt is bonded on the rear side of the top of the side wall, and the front side of the first top sealing belt is folded towards the front side and is bonded on the front side of the top of the side wall; the two ends of the first top sealing belt extend along the left side and the right side of the top of the side wall respectively.
Preferably, the top seal comprises a second top sealing strip and a third top sealing strip; the lower part of the second top sealing belt is bonded on the rear side of the top of the side wall; the lower part of the third top sealing belt is bonded on the front side of the top of the side wall; the upper part of the second top sealing tape is fixedly bonded with the upper part of the third top sealing tape; and two ends of the second top sealing belt and the third top sealing belt respectively extend along the left side and the right side of the top of the side wall.
Preferably, the bottom seal comprises a first bottom sealing strip; the rear side of the first bottom sealing belt is bonded on the rear side of the bottom of the side wall, and the front side of the first bottom sealing belt is folded towards the front side and is bonded on the front side of the bottom of the side wall; the two ends of the first bottom sealing belt extend along the left side and the right side of the bottom of the side wall respectively.
Preferably, the bottom seal comprises a second bottom sealing strip and a third bottom sealing strip; the upper part of the second bottom sealing belt is bonded on the rear side of the bottom of the side wall; the upper part of the third bottom sealing belt is bonded on the front side of the bottom of the side wall; the lower part of the second bottom sealing band is fixedly bonded with the lower part of the third bottom sealing band; and two ends of the second bottom sealing belt and the third bottom sealing belt respectively extend along the left side and the right side of the bottom of the side wall.
Preferably, the front side and the rear side of the bottom of the side body are fixed by sewing with second cotton threads.
Preferably, the side wall comprises a woven layer and a waterproof film which are sequentially laminated from inside to outside; the surface of the woven layer facing the waterproof film is partially or completely covered with a printing coating layer.
Preferably, the inner side of the valve port of the side wall is provided with an inner valve port which extends towards the inner cavity of the side wall and is communicated with the inner cavity of the side wall.
By adopting the technical scheme, the utility model discloses following beneficial effect has: (1) the utility model discloses the structure is ingenious, sets up both ends about the side wall respectively through the overseal and the underseal, and the structure is simple and convenient, replaces conventional valve port bag to pass through the enclosed construction that the fifty percent discount of side wall tip was bonded, and it is better to seal the effect, effectively avoids often the condition of leaking the powder appearing in valve port bag side wall top and bottom when the likepowder thing of splendid attire, directly seals the side wall both ends through the overseal and the underseal, simplifies production processes, and it is more convenient to produce, effectively improves production efficiency.
(2) The utility model discloses a top seal includes first top sealing strip, bonds on the side wall top through first top sealing strip, realizes sealed side wall top, and the back side wall top that bonds is seamless, and the side wall top leaks the powder when effectively avoiding using.
(3) The utility model discloses a bottom seal includes first bottom sealing strip, bonds in the side wall bottom through first bottom sealing strip, realizes sealed side wall bottom, and the side wall bottom is seamless after bonding, and the powder is leaked in the side wall bottom when effectively avoiding using.
(4) The utility model discloses a front side and the rear side at the top of side wall are sewed up fixedly through first cotton thread, the front side and the rear side of the bottom of side wall are sewed up fixedly through the second cotton thread, it sews up to the side wall tip through the cotton thread, play fine supporting role, avoid tip seal or underseal to lead to droing because of inside extrusion, the reliability of valve port bag has been improved greatly, and because the cotton thread will probably have the position that exposes outside side wall front side and rear side when sewing up, the cotton thread exposes the binder on the position can the adhesion sealing strip outside side wall front side and rear side, improve the cohesive strength of sealing strip greatly.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a partial cross-sectional view of the top of the side wall in the first embodiment of the present invention;
fig. 3 is a partial cross-sectional view of the bottom of the side wall in the first embodiment of the present invention;
fig. 4 is a partial cross-sectional view of the top of the side wall in the second embodiment of the present invention;
fig. 5 is a partial cross-sectional view of the bottom of the side wall in the third embodiment of the present invention;
fig. 6 is a schematic structural view of a side wall according to the fourth embodiment of the present invention.
The reference numbers are:
the side wall comprises a side wall body 1, a valve port 1-1, a first cotton thread 1-2, a second cotton thread 1-3, a woven layer 1-4, a waterproof film 1-5, a printing coating layer 1-6 and an inner valve port 1-7;
a top seal 2, a first top seal band 2-1, a second top seal band 2-2, a third top seal band 2-3;
a bottom seal 3, a first bottom sealing tape 3-1, a second bottom sealing tape 3-2, a third bottom sealing tape 3-3.
Detailed Description
Example one
Referring to fig. 1, the leak-proof valve bag of the present embodiment comprises side walls 1, a top seal 2 and a bottom seal 3. The side wall 1 is hollow and has four side surfaces, namely front, back, left and right. The top seal 2 and the bottom seal 3 are respectively arranged at the upper end and the lower end of the side wall 1 and respectively seal the upper end and the lower end of the inner cavity of the side wall 1. One side of the top end of the side wall 1 is turned inwards to form a valve port 1-1 communicated with the inner cavity. The inner side of the valve port 1-1 of the side wall 1 is provided with an inner valve port 1-7 which extends towards the inner cavity of the side wall 1 and is communicated with the inner cavity of the side wall 1.
Referring to fig. 2, the top seal 2 includes a first top sealing tape 2-1. The back side of the first top sealing strip 2-1 is bonded on the back side of the top of the side wall 1, and the front side of the first top sealing strip 2-1 is folded over and bonded on the front side of the top of the side wall 1. Two ends of the first top sealing belt 2-1 extend along the left side and the right side of the top of the side wall 1 respectively. The front side and the back side of the top of the side wall 1 are fixed by a first cotton thread 1-2. The top end of the side wall 1 is sewed through the first cotton threads 1-2, a good supporting effect is achieved, the top seal 2 is prevented from falling off due to internal extrusion, the reliability of the valve bag is greatly improved, moreover, the first cotton threads 1-2 are bound to be exposed at the front side and the rear side of the side wall 1 when being sewed, the parts of the first cotton threads 1-2 exposed at the front side and the rear side of the side wall 1 are located at the inner side of the first top sealing strip 2-1 and are bonded with the bonding agent on the first top sealing strip 2-1, and the bonding strength of the first top sealing strip 2-1 is greatly improved. Preferably, the first top sealing tape 2-1 is a plastic tape having excellent flexibility.
Referring to fig. 3, the bottom seal 3 includes a first bottom sealing tape 3-1. The rear side of the first bottom sealing band 3-1 is bonded on the rear side of the bottom of the side wall 1, and the front side of the first bottom sealing band 3-1 is folded over to the front side and is bonded on the front side of the bottom of the side wall 1. Two ends of the first bottom sealing belt 3-1 extend along the left side and the right side of the bottom of the side wall 1 respectively. The front side and the rear side of the bottom of the side wall 1 are fixed by sewing through second cotton threads 1-3. The second cotton threads 1-3 have the same functions as the first cotton threads 1-2, and are not described in detail herein.
Example two
This embodiment is substantially the same as the first embodiment, except that:
the top seal 2 comprises a second top sealing strip 2-2 and a third top sealing strip 2-3. The lower part of the second top sealing strip 2-2 is bonded to the back side of the top of the side gusset 1. The lower part of the third top sealing strip 2-3 is bonded on the front side of the top of the side gusset 1. The upper portion of the second top sealing band 2-2 is adhesively fixed with the upper portion of the third top sealing band 2-3. The two ends of the second top sealing strip 2-2 and the third top sealing strip 2-3 respectively extend along the left and right sides of the top of the side wall 1.
EXAMPLE III
This embodiment is substantially the same as the first embodiment, except that:
the bottom seal 3 comprises a second bottom sealing band 3-2 and a third bottom sealing band 3-3. The upper part of the second bottom sealing strip 3-2 is bonded on the back side of the bottom of the side wall 1. The upper part of the third bottom sealing strip 3-3 is bonded on the front side of the bottom of the side wall 1. The lower portion of the second bottom sealing band 3-2 is adhesively fixed to the lower portion of the third bottom sealing band 3-3. The two ends of the second bottom sealing strip 3-2 and the third bottom sealing strip 3-3 extend along the left and right sides of the bottom of the side wall 1 respectively.
Example four
This embodiment is substantially the same as the first embodiment, except that:
the side wall 1 comprises a braided layer 1-4 and a waterproof membrane 1-5 which are sequentially laminated from inside to outside. The surface of the woven layer 1-4 facing the waterproof membrane 1-5 is partially or completely covered with a printing paint layer 1-6.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A leak-proof valve bag, which is characterized in that: comprises a side wall (1), a top seal (2) and a bottom seal (3); the side wall (1) is hollow; the top seal (2) and the bottom seal (3) are respectively arranged at the upper end and the lower end of the side wall (1) and respectively seal the upper end and the lower end of the inner cavity of the side wall (1); a valve port (1-1) communicated with the inner cavity is arranged on one side of the top end of the side wall (1), and the front side and the rear side of the top of the side wall (1) are sewn and fixed through first cotton threads (1-2).
2. The leak resistant valve bag of claim 1, wherein: the top seal (2) comprises a first top sealing band (2-1); the rear side of the first top sealing belt (2-1) is bonded on the rear side of the top of the side wall (1), and the front side of the first top sealing belt (2-1) is folded towards the front side and is bonded on the front side of the top of the side wall (1); two ends of the first top sealing belt (2-1) respectively extend along the left side and the right side of the top of the side wall (1).
3. The leak resistant valve bag of claim 1, wherein: the top seal (2) comprises a second top sealing strip (2-2) and a third top sealing strip (2-3); the lower part of the second top sealing strip (2-2) is bonded on the rear side of the top of the side wall (1); the lower part of the third top sealing strip (2-3) is bonded on the front side of the top of the side wall (1); the upper part of the second top sealing tape (2-2) is fixedly bonded with the upper part of the third top sealing tape (2-3); the two ends of the second top sealing strip (2-2) and the third top sealing strip (2-3) respectively extend along the left side and the right side of the top of the side wall (1).
4. The leak resistant valve bag of claim 1, wherein: the bottom seal (3) comprises a first bottom sealing band (3-1); the rear side of the first bottom sealing belt (3-1) is bonded on the rear side of the bottom of the side wall (1), and the front side of the first bottom sealing belt (3-1) is folded towards the front side and bonded on the front side of the bottom of the side wall (1); two ends of the first bottom sealing belt (3-1) respectively extend along the left side and the right side of the bottom of the side wall (1).
5. The leak resistant valve bag of claim 1, wherein: the bottom seal (3) comprises a second bottom sealing strip (3-2) and a third bottom sealing strip (3-3); the upper part of the second bottom sealing strip (3-2) is bonded on the rear side of the bottom of the side wall (1); the upper part of the third bottom sealing strip (3-3) is bonded on the front side of the bottom of the side wall (1); the lower part of the second bottom sealing belt (3-2) is fixedly bonded with the lower part of the third bottom sealing belt (3-3); the two ends of the second bottom sealing strip (3-2) and the third bottom sealing strip (3-3) respectively extend along the left side and the right side of the bottom of the side wall (1).
6. The leak resistant valve bag as defined in any one of claims 4 or 5, wherein: the front side and the rear side of the bottom of the side wall (1) are sewn and fixed through second cotton threads (1-3).
7. The leak resistant valve bag of claim 1, wherein: the side wall (1) comprises a braided layer (1-4) and a waterproof film (1-5) which are sequentially laminated from inside to outside; the surface of the woven layer (1-4) facing the waterproof membrane (1-5) is partially or completely covered with a printing coating layer (1-6).
8. The leak resistant valve bag of claim 1, wherein: the inner side of the valve port (1-1) of the side wall (1) is provided with an inner valve port (1-7) which extends towards the inner cavity of the side wall (1) and is communicated with the inner cavity of the side wall (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000533.4U CN210392043U (en) | 2019-06-29 | 2019-06-29 | Leak-proof valve bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000533.4U CN210392043U (en) | 2019-06-29 | 2019-06-29 | Leak-proof valve bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210392043U true CN210392043U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921000533.4U Active CN210392043U (en) | 2019-06-29 | 2019-06-29 | Leak-proof valve bag |
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| Country | Link |
|---|---|
| CN (1) | CN210392043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228660A (en) * | 2019-06-29 | 2019-09-13 | 长沙中迪包装有限公司 | A kind of leakproof valve bag |
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2019
- 2019-06-29 CN CN201921000533.4U patent/CN210392043U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228660A (en) * | 2019-06-29 | 2019-09-13 | 长沙中迪包装有限公司 | A kind of leakproof valve bag |
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