Cushion pad

Abstract

The utility model discloses a cushion pad which comprises a flexible body and a flexible medium, the flexible body is provided with a cavity and an air outlet, the flexible medium is arranged in the cavity, and the air outlet is communicated with the cavity and is configured to be used for exhausting air outwards from the cavity and preventing the flexible medium from being exhausted. According to the buffer cushion disclosed by the embodiment of the utility model, the flexible medium is filled in the cavity of the flexible body, so that the stability and the impact resistance of the buffer cushion can be improved, the service life of the buffer cushion is prolonged, and the protection function is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing product technical field, especially a kind of buffer pad. BACKGROUND

[0002] The buffer pad in the related art is made by inflating, but due to the irreversible reasons of the process and material of the buffer pad itself, the following problems occur in the use of the bubble bag: 1. The bubble bag is not tightly sealed, and air leakage occurs; 2. Air leakage occurs due to impact from external sharp objects; 3. The buffer pad loses its air-tightness within less than 6 months, causing air leakage. When the above problems occur, the buffer pad loses its protective function. SUMMARY

[0003] One object of the utility model is to provide a buffer pad that fills a flexible medium in the cavity of a flexible body, which can improve the stability and impact resistance of the buffer pad, prolong the service life of the buffer pad, and improve the protective function.

[0004] The buffer pad according to the utility model embodiment includes a flexible body and a flexible medium. The flexible body has a cavity and an air outlet. The flexible medium is arranged in the cavity. The air outlet is connected to the cavity and is configured to discharge air from the cavity and block the flexible medium from being discharged.

[0005] The buffer pad according to the utility model embodiment fills a flexible medium in the cavity of a flexible body, which can improve the stability and impact resistance of the buffer pad, prolong the service life of the buffer pad, and improve the protective function.

[0006] In addition, the buffer pad according to the above embodiments of the utility model can also have the following additional technical features:

[0007] In some embodiments, the buffer pad further includes a one-way air outlet valve arranged at the air outlet. The inlet of the one-way air outlet valve is connected to the cavity for one-way air discharge from the cavity.

[0008] In some embodiments, the flexible medium is in the form of granular medium. The ratio R1 / R2 of the maximum diameter R1 of the air outlet to the particle diameter R2 of the flexible medium is less than or equal to 1 / 2. Alternatively, the flexible medium is in the form of a strip or a block.

[0009] In some embodiments, the flexible medium is in the form of granular medium. The flexible body further has an air inlet connected to the cavity. The air inlet is used to fill the flexible medium into the cavity and is configured to be closed after the filling of the flexible medium is completed.

[0010] In some embodiments, the flexible body has opposite first and second end portions, the air outlets include a plurality of air outlets, and the plurality of air outlets are respectively arranged at the first end portion and the second end portion, and the air inlet is arranged at the first end portion or the first end portion.

[0011] In some embodiments, the cushion includes a first film layer and a second film layer, a periphery of the first film layer is connected with a periphery of the second film layer, the cavity is arranged between a middle portion of the first film layer and a middle portion of the second film layer, and the air outlet is arranged between the periphery of the first film layer and the periphery of the second film layer.

[0012] In some embodiments, the middle portion of the first film layer is provided with a first connecting portion, and the first connecting portion is connected with the second film layer.

[0013] In some embodiments, the middle portion of the second film layer is provided with a second connecting portion, and the second connecting portion is connected with the first connecting portion in a stacking direction; and / or, the first connecting portion is recessed towards the second film layer relative to the first film layer; and / or, the middle portion of the first film layer is provided with a plurality of first connecting portions, and the plurality of first connecting portions are distributed at intervals.

[0014] In some embodiments, the first film layer includes a main film sheet, a side film sheet, and a connecting film sheet, the main film sheet has a gap with the second film layer to form the cavity, the connecting film sheet is connected with the second film layer in a stacking manner, and the side film sheet connects an outer periphery of the main film sheet and an inner periphery of the connecting film sheet.

[0015] In some embodiments, the first film layer includes first, second, third, and fourth side edges, the first and third side edges are arranged on opposite sides of the first film layer in a first direction, the second and fourth side edges are arranged on opposite sides of the first film layer in a second direction, the first side edge is stacked and welded with the second film layer, the third side edge is stacked and welded with the second film layer, the second side edge is stacked with the second film layer and has a plurality of first welding sites distributed at intervals in the first direction, the fourth side edge is stacked with the second film layer and has a plurality of second welding sites distributed at intervals in the first direction, and the air outlet is arranged between adjacent first welding sites and between adjacent second welding sites.

[0016] In some embodiments, the flexible medium is a flexible particle; or, the flexible medium includes at least one of polystyrene particles, polystyrene particles, polyethylene particles, and polypropylene particles; or, the flexible body (10) is a polyethylene film bag; or, the cavity is a single chamber. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of a buffer pad of an embodiment of the present application.

[0018] Figure 2 is a second schematic diagram of a buffer pad of an embodiment of the present application.

[0019] Figure 3 is a third schematic diagram of a buffer pad of an embodiment of the present application.

[0020] Figure 4 is a fourth schematic diagram of a buffer pad of an embodiment of the present application.

[0021] Figure 5 is a fifth schematic diagram of a buffer pad of an embodiment of the present application.

[0022] Reference signs:

[0023] Flexible body 10, air outlet 101, air inlet 102, one-way air outlet valve 103, first end portion 104, second end portion 105, first film layer 11, main diaphragm 111, side diaphragm 112, connecting diaphragm 113, first side edge 1131, second side edge 1132, third side edge 1133, fourth side edge 1134, first connecting portion 114, second film layer 12, first direction A-A, second direction B-B, stacking direction C-C. DETAILED DESCRIPTION

[0024] At present, the packaging of the refrigerator industry mainly adopts expandable polystyrene material (EPS), but EPS foam has poor degradation ability, is easy to break, and causes a large amount of environmental pollution.

[0025] The utility model mainly aims at some defects of the related art of buffer pad, carries out secondary crushing to the packaging foam on the market, uses the principle of inflation to flush the crushed foam into the buffer pad, thereby not only solving the problem of air leakage of ordinary bubble bags, but also fully using the secondary recycled foam material, and truly realizing the purpose of reasonable, low-cost, green and recyclable use. Of course, the medium filled in the buffer pad in the utility model can also be other flexible media.

[0026] The embodiments of the utility model will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0027] As Figures 1 to 5According to the utility model embodiments, the cavity of the flexible body 10 is filled with the flexible medium, which can improve the stability and impact resistance of the cushion and prolong the service life of the cushion, and improve the protection function.

[0028] Compared with filling the cavity with air, the cavity of the flexible body 10 is filled with the flexible medium in the utility model, which can provide support for the flexible body 10 through the flexible medium, increase the support force of the cushion, and the flexible medium is difficult to discharge through the air outlet 101, avoiding the failure of the cushion due to air leakage, prolonging the service life of the cushion. In addition, the support of the flexible medium on the flexible body 10 can maintain the shape and buffering capacity of the cushion, reduce the situation that the cushion fails due to the impact of external sharp objects, and even if the flexible body 10 has a small hole, the cushion will not fail, thereby reducing the production cost of the cushion.

[0029] According to the utility model embodiments, the cavity of the flexible body 10 is filled with the flexible medium, which can improve the stability and impact resistance of the cushion and prolong the service life of the cushion, and improve the protection function.

[0030] As Figure 1 In some embodiments, the cushion further comprises a one-way air outlet valve 103, the one-way air outlet valve 103 is arranged in the air outlet 101, and the inlet of the one-way air outlet valve 103 is communicated with the cavity for one-way air discharge of the cavity. The gas in the cavity can be discharged through the one-way air outlet valve 103, and the air outside the cavity cannot enter the cavity through the one-way air outlet valve 103, which can maintain the support of the flexible medium on the flexible body 10, and in addition, when the flexible medium is filled into the flexible body 10, the one-way air outlet valve 103 can be used to discharge the gas in the cavity, the gas brought in when the flexible body 10 is filled, etc. It can be convenient for the manufacture of the cushion and improve the production efficiency of the cushion.

[0031] The one-way air outlet valve 103 in the utility model can be a thin film type one-way valve, which can include a ventilation cylinder made of a thin film, one end of the ventilation cylinder is large in opening size and communicated with the cavity, and the other end of the ventilation cylinder is small in opening size and communicated with the outside space of the cavity. When the air pressure in the cavity is greater than the air pressure outside the cavity, the gas in the cavity can be discharged from the ventilation cylinder, and when the air pressure in the cavity is less than the outside air pressure, the outside gas of the cavity will press the other end of the ventilation cylinder to close and seal, preventing the outside airflow of the cavity from entering the cavity. Of course, the one-way air outlet valve 103 can also be other one-way valves in the prior art, which is easy for those skilled in the art to understand, and the utility model will not be described again.

[0032] In some embodiments, the flexible medium is in the form of granular medium, and the ratio of the maximum diameter R1 of the air outlet 101 to the diameter R2 of the granular medium is less than or equal to 1 / 2. This can prevent the granular medium from being discharged from the air outlet 101, and can maintain the granular medium stably stored in the cavity, and can prevent the granular medium from blocking the air outlet 101, so that the air outlet 101 loses the air discharge capacity. Alternatively, the ratio of R1 / R2 can be 1 / 2, 2 / 3, 3 / 5, 1 or 2, etc. The diameter of the granular medium refers to the diameter of the granular medium when it is not compressed.

[0033] In addition, the flexible medium can also be in the form of a strip or a block, etc.

[0034] In some embodiments, the flexible medium is in the form of granular medium, and the flexible body 10 further has an air inlet 102 communicating with the cavity, and the air inlet 102 is used to fill the flexible medium into the cavity, and is configured to be closed after the filling of the flexible medium is completed. This can facilitate the injection of the granular medium into the cavity through the air inlet 102, so as to facilitate the introduction of the flexible granular medium into the cavity. In addition, after the air inlet 102 is used to fill the flexible medium, the air inlet 102 is closed, which can prevent the flexible medium from being discharged from the air inlet 102, and can maintain the stability of the cushion. In addition, the air inlet 102 can be closed by heat sealing.

[0035] As shown in FIG. 1, the air outlet 101 is arranged on the flexible body 10, and the air outlet 101 is arranged on the first end 104 of the flexible body 10. In some embodiments, the air outlet 101 is arranged on the second end 105 of the flexible body 10. In some embodiments, the air outlet 101 is arranged on the first end 104 and the second end 105 of the flexible body 10. In some embodiments, the air outlet 101 is arranged on the first end 104 and the second end 105 of the flexible body 10, and the air inlet 102 is arranged on the first end 104 or the second end 105 of the flexible body 10. Figure 1 In some embodiments, the flexible body 10 has opposite first and second ends 104 and 105, the air outlet 101 includes a plurality of air outlets 101, and the plurality of air outlets 101 are respectively arranged on the first and second ends 104 and 105, and the air inlet 102 is arranged on the first end 104 or the first end 104. When the flexible medium is filled into the flexible body 10, the gas in the cavity, the gas between the granular medium, and the gas filled in the process of filling the flexible medium, etc. can be discharged through the air outlet 101. Since the air outlet 101 is arranged on the first and second ends 104 and 105 of the flexible body 10, the air discharge efficiency of the cavity can be improved, and in addition, the air inlet 102 is arranged on the end of the flexible body 10, which can facilitate the air discharge.

[0036] As shown in FIG. 1, the air outlet 101 is arranged on the flexible body 10, and the air outlet 101 is arranged on the first end 104 of the flexible body 10. In some embodiments, the air outlet 101 is arranged on the second end 105 of the flexible body 10. In some embodiments, the air outlet 101 is arranged on the first end 104 and the second end 105 of the flexible body 10. In some embodiments, the air outlet 101 is arranged on the first end 104 and the second end 105 of the flexible body 10, and the air inlet 102 is arranged on the first end 104 or the second end 105 of the flexible body 10. Figure 2 In some embodiments, the cushion includes a first film layer 11 and a second film layer 12, the periphery of the first film layer 11 is connected with the periphery of the second film layer 12, the cavity is arranged between the middle of the first film layer 11 and the middle of the second film layer 12, and the air outlet 101 is arranged between the periphery of the first film layer 11 and the periphery of the second film layer 12. This can improve the sealing performance of the flexible body 10, and can reduce the rigidity of the cushion, and improve the cushioning capacity of the cushion.

[0037] Optionally, such as Figures 2 to 5 The first membrane layer 11 has a first connecting portion 114 in the middle, which is connected to the second membrane layer 12. By connecting the first membrane layer 11 and the second membrane layer 12 with the first connecting portion 114, the distance between the middle of the first membrane layer 11 and the middle of the second membrane layer 12 can be limited, which can make the thickness uniform throughout the cavity and improve the buffering capacity of the cushion.

[0038] Optionally, a second connecting portion is provided in the middle of the second film layer 12, and the second connecting portion is connected to the first connecting portion 114 along the lamination direction CC, which can facilitate maintaining the gap between the first film layer 11 and the second film layer 12. Alternatively, the second film layer 12 can be made into a plane, and the first connecting portion 114 is connected to the plane of the second film layer 12.

[0039] Furthermore, the first connecting portion 114 is recessed relative to the first film layer 11 towards the second film layer 12. This facilitates the molding of the first film layer 11 and improves the manufacturing efficiency of the cushioning pad.

[0040] Optionally, the first film layer 11 has a plurality of first connecting portions 114 in the middle, and the plurality of first connecting portions 114 are distributed at intervals. This can further improve the stability of the buffer pad and maintain the thickness uniformity of the buffer pad at all points.

[0041] like Figures 1 to 5 As shown, the cushioning pad can be rectangular, and the multiple first connecting parts 114 are arranged in multiple columns spaced apart along the first direction AA, with each column including multiple first connecting parts 114 spaced apart along the second direction BB, which can improve the stability of the cushioning pad. In addition, the multiple first connecting parts 114 can also be arranged in other ways.

[0042] Optionally, such as Figure 3 The first membrane layer 11 includes a main membrane 111, a side membrane 112, and a connecting membrane 113. A gap exists between the main membrane 111 and the second membrane layer 12 to form a cavity. The connecting membrane 113 is laminated and connected to the second membrane layer 12. The side membrane 112 connects the outer periphery of the main membrane 111 and the inner periphery of the connecting membrane 113. This can further improve the stability of the buffer pad and the uniformity of its thickness. Furthermore, the dimension of the side membrane 112 along the lamination direction CC is the same as the dimension of the first connecting portion 114 along the lamination direction CC. Additionally, the lamination connection of the connecting membrane 113 and the second membrane layer 12 can improve the stability and sealing performance of the connection between the first membrane layer 11 and the second membrane layer 12.

[0043] Specifically, the middle part of the main diaphragm 111 is provided with a through hole, the first connecting part 114 is in a cylindrical shape, and one end is connected to the periphery of the through hole, and the other end is closed and welded with the second film layer 12. The through hole can be a square hole, a circular hole or a hole of other shapes, and the first connecting part 114 gradually shrinks inward in the direction from the main diaphragm 111 to the second diaphragm.

[0044] Further, as Figure 2 The first film layer 11 includes a first side edge 1131, a second side edge 1132, a third side edge 1133 and a fourth side edge 1134, the first side edge 1131 and the third side edge 1133 are arranged on opposite sides of the first film layer 11 along the first direction A-A, the second side edge 1132 and the fourth side edge 1134 are arranged on opposite sides of the first film layer 11 along the second direction B-B, the first side edge 1131 is laminated and welded with the second film layer 12, the third side edge 1133 is laminated and welded with the second film layer 12, the second side edge 1132 is laminated with the second film layer 12 and has a plurality of first welding positions distributed at intervals along the first direction A-A, the fourth side edge 1134 is laminated with the second film layer 12 and has a plurality of second welding positions distributed at intervals along the first direction A-A, and the gas outlet 101 is arranged between adjacent first welding positions and between adjacent second welding positions. The sealing between the first film layer 11 and the second film layer 12 can be further improved.

[0045] In some embodiments, the flexible medium is a flexible particle, which can facilitate the filling of the cavity and can facilitate the filling of the cavity everywhere, so as to realize the uniform thickness of the cushion everywhere.

[0046] Optionally, the flexible medium is a polystyrene particle. Or, the flexible body 10 is a polyethylene film bag. In addition, the flexible medium can include at least one of polystyrene particles, polystyrene particles, polyethylene particles and polypropylene particles, and at least one of polystyrene, polystyrene, polyethylene and polypropylene can be foamed.

[0047] In addition, the cavity in the utility model can also be single-chamber.

[0048] The cushion in the utility model breaks the traditional structure design, and integrates the multi-chamber structure into a single-chamber, and in order to increase the connection design of the middle structure of the cushion, the foam particles in the cushion are uniformly and closely arranged, and the strength of the cushion is finally enhanced.

[0049] The buffer pad solves the inherent defects of the process and material in the prior art, and achieves the purpose of long-term use and increased protection strength.

[0050] The utility model discloses the improvement, strengthen to the shortage of high pressure polyethylene material, the buffer pad of the utility model mainly includes the following components: air inlet hole, one-way air outlet valve 103, first film layer 11, second film layer 12 etc., and the buffer pad manufacturing process first makes the recycled EPS foam into single particle, and the particle is blown into the cavity of the buffer pad through the blow molding equipment, at this time, the two ends of the buffer pad can be provided with one-way air outlet valve 103, and the excess air will be sprayed from the air outlet 101 through the gap between the particles, when the foam particles in the chamber reach saturation, stop inflating and seal.

[0051] Of course, the EPS foam particles in the utility model can also be directly used for foaming and heating forming particles.

[0052] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as a limitation on the utility model.

[0053] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one feature. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0054] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element internals or the interaction of two elements, unless another definite limitation.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0055] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can be that the first and second features directly contact, or the first and second features indirectly contact through intermediate medium.Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0056] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0057] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and the skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.

Claims

1. A cushioning pad, characterized in that, The device includes a flexible body (10) and a flexible medium. The flexible body (10) has a cavity and an air outlet (101). The flexible medium is disposed in the cavity. The air outlet (101) communicates with the cavity and is configured to exhaust air from the cavity and prevent the flexible medium from being discharged. The flexible medium is provided as a particulate medium, strip-shaped or block-shaped medium. The buffer pad includes a first membrane layer (11) and a second membrane layer (12). The periphery of the first membrane layer (11) is connected to the periphery of the second membrane layer (12). The cavity is located between the middle of the first membrane layer (11) and the middle of the second membrane layer (12). The air outlet (101) is located between the periphery of the first membrane layer (11) and the periphery of the second membrane layer (12). The middle of the first membrane layer (11) is provided with a first connecting part (114). The first connecting part (114) is connected to the second membrane layer (12). The cavity is a single chamber.

2. The cushioning pad according to claim 1, characterized in that, The buffer pad also includes a one-way vent valve (103), which is located at the vent (101). The inlet of the one-way vent valve (103) is connected to the cavity for one-way exhaust of the cavity.

3. The cushioning pad according to claim 1, characterized in that, The flexible medium is set as a particulate medium, and the ratio of the maximum diameter R1 of the air outlet (101) to the particle diameter R2 of the flexible medium, R1 / R2, is less than or equal to 1 / 2.

4. The cushioning pad according to claim 1, characterized in that, The flexible medium is set as a particulate medium, and the flexible body (10) also has an air inlet (102) communicating with the cavity. The air inlet (102) is used to fill the cavity with the flexible medium and is configured to be closed after the flexible medium is filled.

5. The cushioning pad according to claim 4, characterized in that, The flexible body (10) has a first end (104) and a second end (105) opposite to each other. The air outlet (101) includes a plurality of outlets, and the plurality of outlets (101) are respectively located at the first end (104) and the second end (105). The air inlet (102) is located at the first end (104) or the first end (104).

6. The cushioning pad according to claim 1, characterized in that, The second film layer (12) has a second connecting portion in the middle, and the second connecting portion is connected to the first connecting portion (114) along the stacking direction (CC); and / or, the first connecting portion (114) is recessed relative to the first film layer (11) toward the second film layer (12); and / or, the first film layer (11) has a plurality of first connecting portions (114) in the middle, and the plurality of first connecting portions (114) are spaced apart.

7. The cushioning pad according to claim 1, characterized in that, The first membrane layer (11) includes a main membrane (111), a side membrane (112) and a connecting membrane (113). The main membrane (111) and the second membrane layer (12) have a gap to form the cavity. The connecting membrane (113) is stacked and connected to the second membrane layer (12). The side membrane (112) connects the outer periphery of the main membrane (111) and the inner periphery of the connecting membrane (113).

8. The cushioning pad according to claim 1, characterized in that, The first film layer (11) includes a first side edge (1131), a second side edge (1132), a third side edge (1133), and a fourth side edge (1134). The first side edge (1131) and the third side edge (1133) are located on opposite sides of the first film layer (11) along a first direction (AA), and the second side edge (1132) and the fourth side edge (1134) are located on opposite sides of the first film layer (11) along a second direction (BB). The first side edge (1131) is stacked and welded to the second film layer (12), the third side edge (1133) is stacked and welded to the second film layer (12), the second side edge (1132) is stacked with the second film layer (12) and has a plurality of first welding positions spaced apart along the first direction (AA), the fourth side edge (1134) is stacked with the second film layer (12) and has a plurality of second welding positions spaced apart along the first direction (AA), and the air outlet (101) is disposed between adjacent first welding positions and between adjacent second welding positions.

9. The cushioning pad according to claim 1, characterized in that, The flexible medium is flexible particles; or, the flexible body (10) is a polyethylene film bag.

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