A multi-layer composite pearl cotton shock-absorbing pad

Abstract

This utility model relates to the field of pearl cotton technology and aims to provide a multi-layer composite pearl cotton shock-absorbing pad, including several pearl cotton units and a filling unit sandwiched between two adjacent pearl cotton units. The filling unit includes a first film layer and a second film layer, both of which have outwardly protruding portions. The non-protruding portions of the first and second film layers are bonded and fixed together. The protruding portions of the first and second film layers correspond to each other, and an air bladder cavity is formed between the corresponding protruding portions. During transportation and storage, the air bladder cavity does not need to be filled with gas and remains in a contracted state, reducing the overall thickness of the pearl cotton shock-absorbing pad and thus reducing its floor space, thereby lowering storage and transportation costs. Furthermore, during use, air can be injected into the air bladder cavity to cause it to expand outward, providing a good shock-absorbing effect in conjunction with the pearl cotton units.

Description

Technical Field

[0001] This utility model relates to the field of pearl cotton technology, and more specifically, it relates to a multi-layer composite pearl cotton shock-absorbing pad. Background Technology

[0002] EPE (Expanded Polyethylene) foam is a new type of environmentally friendly packaging material made of low-density polyethylene through physical foaming, creating countless independent air bubbles. It overcomes the shortcomings of ordinary foam, such as fragility, deformation, and poor resilience. It boasts numerous advantages, including water and moisture resistance, shock absorption, sound insulation, heat insulation, excellent plasticity, high toughness, recyclability, environmental friendliness, and strong impact resistance. It also exhibits excellent chemical resistance, making it an ideal substitute for traditional packaging materials. It is widely used in packaging for a variety of products, including electronics, instruments, computers, audio equipment, medical devices, industrial control cabinets, hardware lighting fixtures, handicrafts, glass, ceramics, home appliances, spray painting, furniture, wine, and resin products, as well as high-end fragile gifts, hardware products, toys, fruits, leather shoes, and daily necessities.

[0003] Some handicrafts or precision instruments require high levels of protection, thus necessitating thicker EPE foam. However, directly increasing the thickness of the EPE foam also increases storage and transportation costs, thereby raising the overall cost. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a multi-layer composite pearl cotton shock-absorbing pad to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite pearl cotton shock-absorbing pad, comprising a plurality of pearl cotton units and a filling unit sandwiched between two adjacent pearl cotton units, wherein the filling unit comprises a first film layer and a second film layer, both the first film layer and the second film layer having outward protruding portions, the non-protruding portions of the first film layer and the second film layer being bonded and fixed together, the protruding portions of the first film layer and the second film layer corresponding to each other, and an air bladder cavity being provided between the corresponding protruding portions, the air bladder cavity expanding outward when inflated and retracting inward when deflated, a gas transmission channel connecting the two between every two adjacent air bladder cavities, and an inflation port communicating with the gas transmission channel at the edge of the first film layer and the second film layer.

[0006] By adopting the above technical solution, a shrinkable and expandable filling unit is set between two adjacent pearl cotton units. During transportation and storage, the air bladder cavity does not need to be filled with gas and is in a contracted state, reducing the overall thickness of the pearl cotton shock-absorbing pad, thereby reducing its floor space and thus reducing storage and transportation costs. When in use, air can be filled into the air bladder cavity to make it expand outward, which works in conjunction with the pearl cotton unit to provide a good shock absorption effect.

[0007] The present invention is further configured such that the pearl cotton unit includes multiple layers of pearl cotton pads, and two adjacent pearl cotton pads are bonded together and can be torn apart by hand.

[0008] The present invention is further configured such that there are several adhesive sheets between two adjacent pearl cotton pads for connecting the two.

[0009] The present invention is further configured such that a plurality of adhesive films are spaced apart between two pearl cotton pads.

[0010] The present invention is further provided with a release film on the pearl cotton pad corresponding to the adhesive film.

[0011] Compared with the prior art, this utility model provides a multi-layer composite pearl cotton shock-absorbing pad, which has the following beneficial effects:

[0012] 1. A shrinkable and expandable filling unit is set between two adjacent pearl cotton units. During transportation and storage, the air chamber does not need to be filled with gas and is in a contracted state, reducing the overall thickness of the pearl cotton shock-absorbing pad, thereby reducing its footprint and thus reducing storage and transportation costs. When in use, air can be filled into the air chamber to make it expand outward, which works with the pearl cotton unit to provide a good shock absorption effect.

[0013] 2. The pearl cotton unit includes multiple layers of bonded pearl cotton pads that can be torn apart by hand. When the required thickness of the pearl cotton shock-absorbing pad is relatively thin, the corresponding two layers of pearl cotton pads can be torn apart by hand to obtain the pearl cotton shock-absorbing pad of the required thickness. Attached Figure Description

[0014] Figure 1 A schematic diagram of the side structure of a multi-layer composite pearl cotton shock-absorbing pad;

[0015] Figure 2 A schematic diagram of the overall structure of a multi-layer composite pearl cotton shock-absorbing pad;

[0016] Figure 3 This is a schematic diagram of the structure of the filling unit;

[0017] Figure 4 This is a structural schematic diagram with the filled unit shown in cross section.

[0018] Figure 5 This is a schematic diagram of the structure of two adjacent pearl cotton pads that are not connected.

[0019] In the diagram: 1. Pearl cotton unit; 101. Pearl cotton pad; 102. Adhesive film; 103. Release film; 2. Filling unit; 201. First film layer; 202. Second film layer; 203. Protruding part; 204. Gas transmission channel; 205. Inflation port. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0024] Please see Figure 1-4 A multi-layer composite pearl cotton shock-absorbing pad includes several pearl cotton units 1 and a filling unit 2 sandwiched between two adjacent pearl cotton units 1. The filling unit 2 includes a first membrane layer 201 and a second membrane layer 202. Both the first membrane layer 201 and the second membrane layer 202 have outward protruding portions 203. The non-protruding portions 203 of the first membrane layer 201 and the second membrane layer 202 are bonded and fixed together. The protruding portions 203 of the first membrane layer 201 and the second membrane layer 202 correspond to each other, and there is an air bladder between the corresponding protruding portions 203. The air bladder expands outward when inflated and retracts inward when deflated. There is a gas transmission channel 204 connecting each two adjacent air bladders. The edges of the first membrane layer 201 and the second membrane layer 202 also have an inflation port 205 communicating with the gas transmission channel 204.

[0025] In practical applications, during storage and transportation, the airbag cavity is not filled with gas and is in a retracted state. At this time, the overall thickness of the multi-layer composite pearl cotton shock-absorbing pad is thin, reducing its footprint and thus reducing storage and transportation costs, greatly lowering costs. During use, air is injected into the airbag cavity through the air inlet 205, causing the airbag cavity to expand outward and form an airbag shock-absorbing layer between two adjacent pearl cotton units 1. The inflation is stopped when the expansion reaches a certain extent, and the air inlet 205 is heated to thermally seal the first membrane layer 201 and the second membrane layer 202, thereby sealing the air inlet 205 and preventing gas from escaping from it.

[0026] Please see Figure 1 , 2 5. The pearl cotton unit 1 includes multiple pearl cotton pads 101, and two adjacent pearl cotton pads 101 are bonded together and can be torn apart by hand. There are several adhesive films 102 between two adjacent pearl cotton pads 101 for connecting the two. Several adhesive films 102 are spaced apart between two pearl cotton pads 101. Release film 103 is provided on the pearl cotton pad 101 at the position corresponding to the adhesive film 102.

[0027] In practical applications, release films 103 are provided on both sides of the pearl cotton pad 101, and adhesive films 102 are attached between the release films 103 of two adjacent pearl cotton pads 101 to connect the two pearl cotton pads 101. According to this method, several pearl cotton pads 101 are connected together to form a pearl cotton unit 1. The pearl cotton pads 101 of the first and bottom layers of the pearl cotton unit 1 are bonded to the filling unit 2.

[0028] In all the solutions mentioned above, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer composite pearl cotton shock-absorbing pad, characterized in that, It includes several pearl cotton units (1) and filling units (2) sandwiched between two adjacent pearl cotton units (1), wherein, The filling unit (2) includes a first membrane layer (201) and a second membrane layer (202). Both the first membrane layer (201) and the second membrane layer (202) have outward protrusions (203). The non-protrusions (203) of the first membrane layer (201) and the second membrane layer (202) are bonded and fixed together. The protrusions (203) of the first membrane layer (201) and the second membrane layer (202) correspond to each other, and there is an air bladder between the corresponding protrusions (203). The air bladder expands outward when inflated and retracts inward when deflated. There is a gas transmission channel (204) connecting each two adjacent air bladder cavities. The first membrane layer (201) and the second membrane layer (202) also have an inflation port (205) at their edges that communicates with the gas transmission channel (204).

2. The multi-layer composite pearl cotton shock-absorbing pad according to claim 1, characterized in that, The pearl cotton unit (1) includes multiple layers of pearl cotton pads (101), and two adjacent pearl cotton pads (101) are bonded together and can be torn apart by hand.

3. The multi-layer composite pearl cotton shock-absorbing pad according to claim 2, characterized in that, There are several adhesive sheets (102) between two adjacent pearl cotton pads (101) for connecting the two.

4. The multi-layer composite pearl cotton shock-absorbing pad according to claim 3, characterized in that, Several adhesive films (102) are spaced apart between two pearl cotton pads (101).

5. The multi-layer composite pearl cotton shock-absorbing pad according to claim 4, characterized in that, Release film (103) is provided on the pearl cotton pad (101) at the position corresponding to the adhesive film (102).

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