High strength tear resistant valve port pocket
By adjusting the combined structure of the outer and inner bags, and using components such as movable shafts, straps, and buckles to achieve all-round fixation of the inner bag, the problems of easy tearing at the bottom and lack of protection at the top of the valve bag are solved, thus improving the stability and durability of the valve bag.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI XINMINGFENG PACKAGING TECH CO LTD
- Filing Date
- 2025-04-12
- Publication Date
- 2026-05-29
Smart Images

Figure CN224297812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve bag equipment technology, and in particular to a high-strength tear-resistant valve bag. Background Technology
[0002] Valve bags, commonly known as sealed-bottom bags, are a popular international packaging material. They are filled through a valve at the top or bottom using specialized filling equipment, and then packed into a cube shape, resulting in neat, aesthetically pleasing stacks. They are considered environmentally friendly bags. Valve bags offer advantages such as improved packaging efficiency, convenient transportation, high durability, and low breakage rate.
[0003] In the prior art, such as Chinese Patent No. CN212126068U, "A High-Strength Valve Bag", it includes: a bag body, the bag body including walls and a bottom, wherein a plurality of the walls enclose an internal space, and the bottom is formed at one end of the walls and bent relative to the walls; the walls are divided into long walls and short walls; wherein two long walls are arranged opposite to each other, and the two sides of the long walls are respectively connected to two short walls; two short walls are arranged opposite to each other, and the two sides of the short walls are respectively connected to two long walls; the bottom is divided into a long side bottom and a short side bottom, wherein the long side bottom is connected to one end of the long wall, and the short side bottom is connected to one end of the short wall; the two long side bottoms overlap and are bonded to a whole, and at least a portion of one long side bottom is located outside the other long side bottom; a short side bottom overlaps and is bonded to at least one long side bottom to a whole.
[0004] In the aforementioned technology, although a valve bag with sufficient strength is achieved by setting two long sides at the bottom to overlap and bond them together as a whole, with at least a portion of the bottom of one long side located outside the bottom of the other long side, the bottom of the high-strength valve bag is not well fixed when pulled, making the bottom of the valve bag prone to cracking during use, thus affecting the user experience. Furthermore, the existing valve bag does not have a fixed internal structure, and after repeated use, the valve bag will have poor support and no better protection for the top of the valve bag, causing the user to damage the bag opening when lifting it. Utility Model Content
[0005] The purpose of this invention is to solve the problem in the prior art that the bottom of the high-strength valve bag is not well fixed, making the bottom of the valve bag easy to crack during use, and there is no better protection for the top of the valve bag, which causes the user to damage the bag opening when lifting it.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength tear-resistant valve bag, comprising: two adjustable outer bags and an inner bag, wherein two movable shafts are movably connected to the annular openings of the two adjustable outer bags, the movable shafts are evenly divided into two groups, and two straps are movably sleeved on the outer surface of each group of movable shafts, a movable belt is fixedly connected to one side of each of the straps, and a buckle is fixedly connected inside the straps. Multiple slots are fixedly connected to both sides of the inner bag, and the buckles are engaged inside the buckles.
[0007] The technical effect of adopting the above-mentioned further solution is: pulling the movable belt causes it to move on the outer surface of the movable shaft. The movement of the movable belt causes the outer bag to tighten, which surrounds and fixes the outer surface of the inner bag. After reaching the appropriate position, the buckle is squeezed into the inside of the slot for fixation, so that the two adjustable outer bags can wrap and protect the inner bag in all directions.
[0008] In a preferred embodiment, a support strip is fixedly installed on the top of the inner bag, a telescopic plate is movably connected to one side of the support strip, a fixing strip is fixedly installed on the top of the inner bag, a limit groove is formed inside the fixing strip, and two slide rails are fixedly connected to both sides of the fixing strip.
[0009] The technical effect of adopting the above-mentioned further solution is that the telescopic plate can extend and retract inside the support strip, the fixing strip is used to fix the top of the inner bag, and the telescopic plate can pass through the inside of the limiting groove and be fixed to its top by the abutment plate.
[0010] In a preferred embodiment, two sliders are movably connected to the outer surfaces of the two slide rails, a stop plate is fixedly connected to the bottom of the sliders, and a handle is fixedly connected to the top of the telescopic plate.
[0011] The technical effects of adopting the above-mentioned further solution are: the second slider can slide on the outer surface of the second slide rail for easy movement, the abutment plate fixes the telescopic plate, and the handle makes it easy for workers to pull.
[0012] In a preferred embodiment, two slide rails are fixedly connected to the inner walls of the two adjustable outer bags, and sliders are slidably connected to the outer surfaces of the slide rails. A fixing block is fixedly connected to the top of the sliders, and a support column is movably connected inside the fixing blocks. A connecting strip is movably connected to the outer surface of the support columns. The connecting strips are divided into two groups, and a support shaft is fixedly connected to the other side of each group of connecting strips. Anti-slip strips are sleeved on the outer surfaces of the two support shafts.
[0013] The technical effect of adopting the above-mentioned further solution is that: the anti-slip strap is held and the fixed block is pulled by the connecting strip. The fixed block moves on the outer surface of the slide rail by sliding the slider one, which facilitates the movement. The slider one distributes the pulling force to the inner and outer sides of the outer bag and the inner bag to reduce pressure, so that the inner bag will not be damaged when the user holds it.
[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0015] In use, pulling the movable belt causes it to move on the outer surface of the movable shaft. The movement of the movable belt causes the outer bag to tighten, surrounding and fixing the outer surface of the inner bag. After reaching the appropriate position, the buckle is squeezed into the slot for fixation, causing the two outer bags to fully wrap and protect the inner bag. Pulling the handle causes the handle to move the telescopic plate into the limiting groove. The sliding slider two moves on the outer surface of the slide rail two, causing the abutment to squeeze and fix the telescopic plate, protecting the top of the inner bag.
[0016] In this invention, when in use, the user holds the anti-slip strap and pulls the fixing block through the connecting strip. The fixing block moves by sliding the slider on the outer surface of the slide rail. The slider distributes the pulling force to the inner and outer sides of the outer and inner bags to reduce pressure, ensuring that the inner bag will not be damaged when the user holds it. Attached Figure Description
[0017] Figure 1 A three-dimensional structural diagram of a high-strength tear-resistant valve pocket provided by this utility model;
[0018] Figure 2 A side view of a high-strength tear-resistant valve pocket provided by this utility model;
[0019] Figure 3 An enlarged cross-sectional view of a portion of the slider of a high-strength tear-resistant valve pocket provided by this utility model;
[0020] Figure 4 This is an enlarged cross-sectional view of the fixing strip of a high-strength tear-resistant valve pocket provided by this utility model.
[0021] Legend:
[0022] 1. Adjustable outer pocket; 101. Movable shaft; 102. Strap; 103. Movable belt; 104. Slot; 105. Buckle; 106. Slide rail one; 107. Slider one; 108. Fixing block; 109. Support column; 110. Connecting strip; 111. Support shaft; 112. Anti-slip strip; 113. Inner pocket; 114. Support strip; 115. Telescopic plate; 116. Fixing strip; 117. Limiting groove; 118. Slide rail two; 119. Slider two; 120. Support plate; 121. Handle. Detailed Implementation
[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0025] Example 1, as Figure 1-4 As shown, it includes: two adjustable outer bags 1 and an inner bag 113. Two movable shafts 101 are movably connected to the opening of each of the two adjustable outer bags 1. The multiple movable shafts 101 are divided into two groups. Two straps 102 are movably fitted on the outer surface of each group of movable shafts 101. Movable belts 103 are fixedly connected to one side of each of the multiple straps 102. Buckles 105 are fixedly connected inside each of the multiple straps 102. Multiple slots 104 are fixedly connected to both sides of the inner bag 113. Multiple buckles 105 are engaged inside the multiple buckles 105. A support bar 114 is fixedly installed on the top of the inner bag 113. A telescopic plate 115 is movably connected to one side of the support bar 114. A fixing bar 116 is fixedly installed on the top of the inner bag 113. A limit groove 117 is opened inside the fixing bar 116. Two slide rails 118 are fixedly connected to both sides of the fixing bar 116.
[0026] In this embodiment, pulling the movable belt 103 causes it to move on the outer surface of the movable shaft 101. The movement of the movable belt 103 causes the adjusting outer bag 1 to tighten, surrounding and fixing the outer surface of the inner bag 113. After reaching the appropriate position, the buckle 105 is squeezed into the slot 104 for fixing, causing the two adjusting outer bags 1 to fully wrap and protect the inner bag 113. The telescopic plate 115 can extend and retract inside the support bar 114. The fixing bar 116 is used to fix the top of the inner bag 113. The telescopic plate 115 can pass through the inside of the limiting groove 117 and be fixed at its top by the abutment plate 120.
[0027] Example 2, as Figure 1-4 As shown, each of the two adjusting outer bags 1 has two slide rails 106 fixedly connected to its inner wall. Each of the slide rails 106 has a slider 107 slidably connected to its outer surface. Each slider 107 has a fixed block 108 fixedly connected to its top. Each fixed block 108 has a support column 109 movably connected to its interior. Each support column 109 has a connecting strip 110 movably connected to its outer surface. Each connecting strip 110 is divided into two groups. Each group of connecting strips 110 has a support shaft 111 fixedly connected to its other side. Each of the two support shafts 111 has an anti-slip strip 112 fitted onto its outer surface.
[0028] In this embodiment, the anti-slip strap 112 is held and the fixing block 108 is pulled by the connecting strip 110. The fixing block 108 moves by sliding on the outer surface of the slide rail 106 via the slider 107. The slider 107 distributes the pulling force to the inner and outer sides of the outer bag 1 and the inner bag 113 to reduce pressure, so that the inner bag 113 will not be damaged when the user holds it.
[0029] Working Principle: This device is a high-strength tear-resistant valve bag. During use, pulling the movable belt 103 causes it to move on the outer surface of the movable shaft 101. The movement of the movable belt 103 tightens the outer bag 1, enclosing and securing the outer surface of the inner bag 113. Once in the appropriate position, the buckle 105 is pressed into the slot 104 for fixation, ensuring the two outer bags 1 provide comprehensive protection for the inner bag 113. Pulling the handle 121 moves the telescopic plate 115 into the limiting groove 117. The sliding slider 119 is on the outer surface of the slide rail 118, causing the abutment 120 to press and fix the telescopic plate 115, protecting the top of the inner bag 113. When in use, the anti-slip strap 112 is held and the fixing block 108 is pulled through the connecting strip 110. The fixing block 108 moves by sliding on the outer surface of the slide rail 106 through the slider 107. The slider 107 distributes the pulling force to the inner and outer sides of the outer bag 1 and the inner bag 113 to reduce pressure, so that the inner bag 113 will not be damaged when the user holds it.
[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A high-strength tear-resistant valve pocket, comprising: Two adjustable outer bags (1) and an inner bag (113) are characterized in that: two movable shafts (101) are movably connected at the opening of each of the two adjustable outer bags (1), the multiple movable shafts (101) are divided into two groups, and two straps (102) are movably sleeved on the outer surface of each group of movable shafts (101), a movable belt (103) is fixedly connected to one side of each of the multiple straps (102), and a buckle (105) is fixedly connected inside each of the multiple straps (102). Multiple slots (104) are fixedly connected to both sides of the inner bag (113), and the multiple buckles (105) are engaged inside the multiple buckles (105).
2. The high-strength tear-resistant valve bag according to claim 1, characterized in that: A support strip (114) is fixedly installed on the top of the inner bag (113), and a telescopic plate (115) is movably connected to one side of the support strip (114). A fixing strip (116) is fixedly installed on the top of the inner bag (113).
3. A high-strength tear-resistant valve bag according to claim 2, characterized in that: The fixing strip (116) has a limiting groove (117) inside, and two slide rails (118) are fixedly connected to both sides of the fixing strip (116).
4. A high-strength tear-resistant valve bag according to claim 3, characterized in that: The outer surfaces of the two slide rails (118) are movably connected to sliders (119), the bottom of sliders (119) is fixedly connected to a stop plate (120), and the top of the telescopic plate (115) is fixedly connected to a handle (121).
5. A high-strength tear-resistant valve bag according to claim 1, characterized in that: The inner walls of the two adjustable outer bags (1) are fixedly connected to two slide rails (106), and the outer surfaces of the multiple slide rails (106) are slidably connected to sliders (107), and the tops of the multiple sliders (107) are fixedly connected to fixing blocks (108).
6. A high-strength tear-resistant valve bag according to claim 5, characterized in that: Each of the multiple fixed blocks (108) has a support column (109) movably connected inside, and each of the multiple support columns (109) has a connecting strip (110) movably connected to its outer surface.
7. A high-strength tear-resistant valve bag according to claim 6, characterized in that: The multiple connecting strips (110) are divided into two groups, and a support shaft (111) is fixedly connected to the other side of each group of connecting strips (110).
8. A high-strength tear-resistant valve bag according to claim 7, characterized in that: The outer surfaces of both support shafts (111) are fitted with anti-slip strips (112).