A shock absorbing foam structure for washing machine packaging

By using an expansion-adjustable shockproof foam structure, the problems of the applicability and disassembly efficiency of polyethylene foam in washing machine packaging are solved, enabling stable fixing and quick disassembly of different models of washing machines, and improving environmental protection and protection.

CN224376498UActive Publication Date: 2026-06-19QINGDAO XINHAIJING PACKING PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO XINHAIJING PACKING PROD CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing polyethylene foam is difficult to adapt to different models in washing machine packaging. It requires a lot of force to disassemble and is easy to detach, which affects the scope of application and cleaning efficiency. In addition, there is the problem of electrostatic adhesion.

Method used

It adopts an expansion-adjustable shockproof foam structure, and controls the expansion of the air cushion through the first and second air pipes. Combined with the buckle system and the limiting layer, it can achieve stable fixation and quick disassembly for different models of washing machines.

Benefits of technology

It improves the applicability and disassembly efficiency of foam structures, reduces detachment, enhances environmental friendliness and protection, and prevents electrostatic adhesion and liquid ingress.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a shockproof foam structure for washing machine packaging, including bottom sheath, the bottom fixedly connected with first buffer assembly in the bottom sheath inner chamber, the inner chamber side wall of bottom sheath is fixedly connected with first air cushion, both sides of first air cushion are fixedly connected with first air pipe, the inner surface screw thread connection of first air pipe has first sealing cover, the top of bottom sheath is fixedly connected with connecting component, the top of connecting component buckle connection has top sheath, the utility model relates to foam structure technical field, this shockproof foam structure for washing machine packaging cooperates with first air pipe and second air pipe, and the user can carry out the inflation work to first air cushion and second air cushion, and then can make first air cushion and second air cushion inflation, and then make first air cushion and second air cushion can carry out the fixed work to different size washing machine, to can improve the application range of equipment.
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Description

Technical Field

[0001] This utility model relates to the field of foam structure technology, specifically a shockproof foam structure for washing machine packaging. Background Technology

[0002] Foam structures are a special type of structure composed of gas and solid materials, where the solid materials are typically lightweight, and the gas fills the voids within the solid materials. This structure gives foam a certain degree of strength, elasticity, and lightness, while also providing good thermal insulation, sound insulation, cushioning, shock absorption, and compression resistance. These properties make foam structures widely used in packaging, sound insulation, construction, sporting goods, and electronic product protection.

[0003] Currently, foam structures on the market are mainly divided into open-cell foam, closed-cell foam, polyurethane foam, and polyethylene foam. Among them, polyethylene foam, which has strong water resistance and pressure resistance, is often used for packaging washing machines. In order to ensure that the polyethylene foam can securely package the washing machine, users often need to ensure that the internal gaps of the polyethylene foam completely match the size of the washing machine during the production process. This can prevent the packaged washing machine from shifting during transportation. However, this installation method requires users to use a lot of force to pull the polyethylene foam during unpacking, which may cause some foam on the surface of the polyethylene foam to detach. Due to static electricity, these detached foams often stick to various places, requiring users to spend a lot of time cleaning them. Moreover, because the internal gaps of the polyethylene foam must completely match the size of the washing machine, the polyethylene foam can only be used for one type of washing machine, thus affecting the applicability of the equipment.

[0004] Therefore, this utility model provides a shockproof foam structure for washing machine packaging, which solves the above problems by expanding and adjusting the structure. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a shock-absorbing foam structure for washing machine packaging, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock-absorbing foam structure for washing machine packaging, comprising a bottom cover, a first buffer assembly fixedly connected to the bottom of the inner cavity of the bottom cover, a first air cushion fixedly connected to the side wall of the inner cavity of the bottom cover, a first vent pipe fixedly connected to both sides of the first air cushion, a first sealing cap threadedly connected to the inner surface of the first vent pipe, a connecting assembly fixedly connected to the top of the bottom cover, a top cover snapped to the top of the connecting assembly, a second buffer assembly fixedly connected to the top of the inner cavity of the top cover, a second air cushion fixedly connected to the side wall of the inner cavity of the top cover, a second vent pipe fixedly connected to both sides of the second air cushion, and a second sealing cap threadedly connected to the inner surface of the second vent pipe.

[0007] Preferably, both the first buffer assembly and the second buffer assembly include a base plate, a first spring is fixedly connected to the side of the base plate near the connecting assembly, and a buffer plate is fixedly connected to the side of the first spring near the connecting assembly.

[0008] Preferably, the connecting assembly includes a frame plate, with a second spring fixedly connected to the front and rear ends of both sides of the frame plate. A pull plate is fixedly connected to the side of the second spring away from the center of the frame plate. A movable rod is fixedly connected to the side of the pull plate near the center of the frame plate. A passive block is fixedly connected to the end of the movable rod near the center of the second spring. A fixing plate is fixedly connected to the top of the movable rod. A snap-fit ​​post is fixedly connected to the side of the fixing plate near the passive block.

[0009] Preferably, sliding grooves are provided at the front and rear ends of both sides of the top of the frame plate, and the length between the front and rear ends of the sliding grooves is equal to the length between the front and rear ends of the fixed plate.

[0010] Preferably, the side of the passive block away from the frame plate is connected to the inner surface of the first air cushion.

[0011] Preferably, the top sheath has a locking groove on both the front and rear ends of its bottom sides. The length between the front and rear ends of the locking groove is equal to the length between the front and rear ends of the sliding groove. A retaining groove is provided on the side of the locking groove near the center of the frame plate. The inner diameter of the retaining groove is equal to the outer diameter of the buckle post.

[0012] Preferably, the bottom sheath has a first functional groove on both sides, and the top sheath has a second functional groove on both sides.

[0013] Preferably, both the bottom sheath and the top sheath include a foam layer, and a retaining layer is bonded to the top and bottom of the foam layer. The retaining layer is coated with an anti-slip layer on the side away from the foam layer.

[0014] Beneficial effects

[0015] This invention provides a shock-absorbing foam structure for washing machine packaging. Compared with the prior art, it has the following advantages:

[0016] (1) The shockproof foam structure for washing machine packaging allows users to inflate the first and second air cushions through the combined use of the first and second air pipes. This allows the first and second air cushions to expand and fix washing machines of different sizes, thereby increasing the applicability of the equipment. The opening of the first and second functional slots, together with the first sealing cover, allows for rapid degassing of the first and second air cushions, enabling users to quickly unpack the equipment. Furthermore, the degassing of the first and second air cushions prevents the four sides of the washing machine from contacting the equipment, thus reducing the phenomenon of local foam detachment during the unpacking process and improving the environmental friendliness of the equipment.

[0017] (2) The shockproof foam structure for washing machine packaging, through the setting of the passive block, allows the first air cushion to move inward along with the fixing plate and the buckle post during the expansion process, so that the buckle post can enter the fixing groove, thereby making the bottom cover and the top cover firmly connected. This keeps the gap between the bottom cover and the top cover in a stable state, thereby preventing liquid from entering the equipment through the gap and causing damage to the washing machine, thus improving the protection of the equipment.

[0018] (3) The shockproof foam structure used for washing machine packaging can prevent foam from detaching during transportation by wrapping the foam layer, thereby preventing the foam from polluting the environment and further improving the environmental friendliness of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the overall structure of this utility model up to the center of the first ventilator;

[0021] Figure 3 This is a cross-sectional view of the overall structure of this utility model up to the center of the movable rod;

[0022] Figure 4 yes Figure 3 Enlarged view of point A;

[0023] Figure 5 This is a structural layer diagram of the bottom and top sheaths of this utility model.

[0024] In the diagram: 1. Bottom sleeve; 2. First buffer assembly; 3. First air cushion; 4. First vent pipe; 5. First sealing cap; 6. Connecting assembly; 7. Top sleeve; 8. Second buffer assembly; 9. Second air cushion; 10. Second vent pipe; 11. Second sealing cap; 12. Seat plate; 13. First spring; 14. Buffer plate; 15. Frame plate; 16. Second spring; 17. Pull plate; 18. Movable rod; 19. Passive block; 20. Fixed plate; 21. Buckle post; 22. Foam layer; 23. Restriction layer; 24. Anti-slip layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] Please see Figure 1-3A shockproof foam structure for washing machine packaging includes a bottom cover 1 with first functional grooves on both sides and a top cover 7 with second functional grooves on both sides. The first and second functional grooves allow users to directly apply force to the first air cushion 3 and the second air cushion 9, and also allow users to move the packaged equipment through the first functional grooves after packaging. A first buffer assembly 2 is fixedly connected to the bottom of the inner cavity of the bottom cover 1. Both the first and second buffer assemblies 2 and 8 include a base plate 12. A first spring is fixedly connected to the side of the base plate 12 closest to the connecting assembly 6. Spring 13, a buffer plate 14 is fixedly connected to the side of the first spring 13 near the connecting component 6. The buffer plate 14 is designed so that when the bottom cover 1 and top cover 7 are packaging the washing machine, it first contacts the washing machine and then, in conjunction with the elasticity of the first spring 13, provides cushioning and protection for the washing machine. This protection process does not affect the bottom cover 1 and top cover 7, thus ensuring the overall shockproof function of the bottom cover 1 and top cover 7 after packaging. A first air cushion 3 is fixedly connected to the side wall of the inner cavity of the bottom cover 1. First air pipes 4 are fixedly connected to both sides of the first air cushion 3. The first air pipes 4 allow for... The user transmits gas to the first air cushion 3, allowing it to expand or contract. The expansion of the first air cushion 3 secures the bottom of the washing machine on all four sides. A first sealing cap 5 is threaded onto the inner surface of the first vent pipe 4, sealing the vent pipe 4 and preventing gas leakage when the first air cushion 3 expands. A connecting component 6 is fixedly connected to the top of the bottom cover 1, and a top cover 7 is snapped onto the top of the connecting component 6. A second buffer component 8 is fixedly connected to the top of the inner cavity of the top cover 7. A second air cushion 9 is fixedly connected to the side wall of the inner cavity of the protective sleeve 7. A second vent pipe 10 is fixedly connected to both sides of the second air cushion 9. The second vent pipe 10 allows the user to transmit gas to the second air cushion 9, thereby allowing the second air cushion 9 to expand or retract. The expansion of the second air cushion 9 can fix the top of the four sides of the washing machine. A second sealing cover 11 is threadedly connected to the inner surface of the second vent pipe 10. The second sealing cover 11 can seal the second vent pipe 10, thereby preventing gas leakage inside the second air cushion 9 when it expands.

[0028] Example 2:

[0029] Please see Figure 4This embodiment provides a technical solution based on Embodiment 1: the connecting component 6 includes a frame plate 15. Sliding grooves are provided at the front and rear ends of both sides of the top of the frame plate 15. The length between the front and rear ends of the sliding grooves is equal to the length between the front and rear ends of the fixed plate 20. Second springs 16 are fixedly connected to the front and rear ends of both sides of the frame plate 15. Pull plates 17 are fixedly connected to the side of the second springs 16 away from the center of the frame plate 15. A movable rod 18 is fixedly connected to the side of the pull plate 17 near the center of the frame plate 15. A passive block 19 is fixedly connected to the end of the movable rod 18 near the center of the second spring 16. The passive block 19, during the expansion of the first air cushion 3, moves the movable rod 18, the fixed plate 20, and the latching post 21 inwards. The passive block 19 is connected to the inner surface of the first air cushion 3 on the side away from the frame plate 15. The top of the movable rod 18 is fixedly connected to the fixing plate 20. The side of the fixing plate 20 near the passive block 19 is fixedly connected to the snap-on post 21. The front and rear ends of both sides of the bottom of the top cover 7 are provided with locking grooves. The opening of the locking grooves allows the fixing plate 20 and the snap-on post 21 to enter the interior of the top cover 7. The length between the front and rear ends of the locking groove is equal to the length between the front and rear ends of the sliding groove. The side of the locking groove near the center of the frame plate 15 is provided with a retaining groove. The opening of the retaining groove limits the upper and lower positions of the snap-on post 21 after it moves inward, thereby fixing the bottom cover 1 and the top cover 7 together. The inner diameter of the retaining groove is equal to the outer diameter of the snap-on post 21.

[0030] It should be noted that after the gas inside the first air cushion 3 is discharged, the reaction force of the second spring 16 can cause the pull plate 17 to move outward, thereby separating the buckle post 21 from the retaining groove, and thus allowing the bottom cover 1 and the top cover 7 to separate.

[0031] Example 3:

[0032] Please see Figure 5 This embodiment provides a technical solution based on embodiment one: both the bottom sheath 1 and the top sheath 7 include a foam layer 22. The top and bottom of the foam layer 22 are bonded with a retaining layer 23. The retaining layer 23 that wraps around the foam layer 22 can improve the protective properties of the surfaces of the bottom sheath 1 and the top sheath 7, thereby preventing the foam from detaching from the equipment. The side of the retaining layer 23 away from the foam layer 22 is coated with an anti-slip layer 24. The anti-slip layer 24 can improve the friction of the surfaces of the bottom sheath 1 and the top sheath 7, thereby preventing the surfaces of the bottom sheath 1 and the top sheath 7 from being too slippery, which would make it difficult for the user to transport the equipment.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] When packaging the washing machine, the user first needs to place the washing machine inside the bottom cover 1, and then put the top cover 7 on top of the washing machine. During this process, the buffer plate 14, in conjunction with the elastic first spring 13, can provide cushioning and protection for the top and bottom of the washing machine. The fixing plate 20 and the snap-fit ​​post 21 will also enter the locking groove. Then, the first sealing cover 5 and the second sealing cover 11 are removed, so that the first vent pipe 4 and the second vent pipe 10 are in a venting state, allowing the user to supply air to the first vent pipe 4 and the second vent pipe 10 through the air supply structure. This causes the first air cushion 3 and the second air cushion 9 to expand, thereby fixing the washing machine in place. Then, the first sealing cover 5 and the second sealing cover 11 are reinstalled at the first vent pipe 4 and the second vent pipe 10, thus sealing the first vent pipe 4 and the second vent pipe 10. During this process, the expansion of the first air cushion 3 causes the passive block 19 to move along with the fixing plate 20 and the snap-on post 21, thereby causing the snap-on post 21 to enter the retaining groove, thus fixing the bottom cover 1 and the top cover 7 in a fixed connection state.

[0035] When unpacking, the user first needs to remove the first sealing cover 5 and the second sealing cover 11 to allow the first vent pipe 4 and the second vent pipe 10 to be ventilated. Then, the user presses the first air cushion 3 and the second air cushion 9 through the first and second functional slots to quickly expel the gas inside the first air cushion 3 and the second air cushion 9. Then, the user reinstalls the first sealing cover 5 and the second sealing cover 11. During this process, the pull plate 17 will move outward along with the movable rod 18, the passive block 19, the fixed plate 20 and the latching post 21 due to the reaction force of the second spring 16, thereby separating the latching post 21 from the retaining groove. Then, the user can remove the top cover 7, allowing the user to carry the washing machine out.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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 shockproof foam structure for washing machine packaging, comprising a bottom cover (1), characterized in that: The bottom of the inner cavity of the bottom sleeve (1) is fixedly connected to a first buffer assembly (2), the side wall of the inner cavity of the bottom sleeve (1) is fixedly connected to a first air cushion (3), the two sides of the first air cushion (3) are fixedly connected to a first vent pipe (4), the inner surface of the first vent pipe (4) is threadedly connected to a first sealing cap (5), the top of the bottom sleeve (1) is fixedly connected to a connecting assembly (6), the top of the connecting assembly (6) is snapped to a top sleeve (7), the top of the inner cavity of the top sleeve (7) is fixedly connected to a second buffer assembly (8), the side wall of the inner cavity of the top sleeve (7) is fixedly connected to a second air cushion (9), the two sides of the second air cushion (9) are fixedly connected to a second vent pipe (10), the inner surface of the second vent pipe (10) is threadedly connected to a second sealing cap (11).

2. The shock-absorbing foam structure for washing machine packaging according to claim 1, characterized in that: The first buffer assembly (2) and the second buffer assembly (8) both include a seat plate (12). A first spring (13) is fixedly connected to the side of the seat plate (12) near the connecting assembly (6). A buffer plate (14) is fixedly connected to the side of the first spring (13) near the connecting assembly (6).

3. The shock-absorbing foam structure for washing machine packaging according to claim 1, characterized in that: The connecting assembly (6) includes a frame plate (15). A second spring (16) is fixedly connected to the front and rear ends of both sides of the frame plate (15). A pull plate (17) is fixedly connected to the side of the second spring (16) away from the center of the frame plate (15). A movable rod (18) is fixedly connected to the side of the pull plate (17) near the center of the frame plate (15). A passive block (19) is fixedly connected to the end of the movable rod (18) near the center of the second spring (16). A fixing plate (20) is fixedly connected to the top of the movable rod (18). A buckle post (21) is fixedly connected to the side of the fixing plate (20) near the passive block (19).

4. The shock-absorbing foam structure for washing machine packaging according to claim 3, characterized in that: The front and rear ends of the top two sides of the frame plate (15) are provided with sliding grooves, and the length between the front and rear ends of the sliding grooves is equal to the length between the front and rear ends of the fixed plate (20).

5. The shock-absorbing foam structure for washing machine packaging according to claim 3, characterized in that: The passive block (19) is connected to the inner surface of the first air cushion (3) on the side away from the frame plate (15).

6. The shock-absorbing foam structure for washing machine packaging according to claim 5, characterized in that: The top cover (7) has a locking groove on both the front and rear ends of its bottom sides. The length between the front and rear ends of the locking groove is equal to the length between the front and rear ends of the sliding groove. A retaining groove is provided on the side of the locking groove near the center of the frame plate (15). The inner diameter of the retaining groove is equal to the outer diameter of the buckle post (21).

7. The shock-absorbing foam structure for washing machine packaging according to claim 1, characterized in that: The bottom sheath (1) has a first functional groove on both sides, and the top sheath (7) has a second functional groove on both sides.

8. The shock-absorbing foam structure for washing machine packaging according to claim 1, characterized in that: Both the bottom sheath (1) and the top sheath (7) include a foam layer (22), and a retaining layer (23) is bonded to the top and bottom of the foam layer (22). The retaining layer (23) is coated with an anti-slip layer (24) on the side away from the foam layer (22).