A foamed plastic gasket

Abstract

The utility model discloses a kind of foam plastic gaskets, it is related to gasket protection appliance technical field, including bottom box, quick-release slot is set in the middle of two ends of bottom box upper side, and first protection groove is set in the top surface peripheral side of bottom box;The top surface of bottom box is provided with clamping groove, and the top surface of bottom box is installed with the cover plate matched with clamping groove, the second protection groove that the bottom surface peripheral side of cover plate is provided with intercommunication first protection groove, and gasket assembly is installed between cover plate and bottom box;The utility model is matched by bottom box, cover plate and gasket assembly, metal sheet, realize the dual function of convenient disassembly and electromagnetic protection;In installation stage, quick-release slot can quickly separate bottom box and cover plate, clamping groove can reduce the extrusion misplacement of both, and gasket assembly is fixed by the cooperation of positioning block, clamping plate and locking groove, without accurate alignment can be completed, greatly shorten assembly time.

Description

Technical Field

[0001] This utility model relates to the technical field of padding protective equipment, and in particular to a foam plastic padding. Background Technology

[0002] During the production, storage, and transportation of precision circuit boards, their internal chips, circuits, and other structures are easily damaged by factors such as compression, impact, displacement, and friction. Therefore, foam plastic pads are needed for protection. However, current foam plastic pads on the market have significant shortcomings in meeting the protection requirements of precision circuit boards: most existing pads adopt a single-layer structure or a single-density design, which cannot achieve multi-dimensional protection. Some pad structures can only resist slight compression during transportation but cannot absorb the energy generated by sudden impacts, leading to the desoldering of internal components after the circuit board is impacted. Furthermore, some pad structures, although they have a certain energy absorption effect, cannot restrict the sliding of the circuit board within the pad due to insufficient surface friction. During transportation, the circuit board is prone to collision with the edge of the pad and circuit wear due to bumps, thus failing to meet the protection requirements of compression resistance, energy absorption, and anti-slip. Therefore, these problems need to be solved. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a foam plastic liner.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a foam plastic liner, including a base box, wherein quick-release grooves are provided at the middle of both ends of the upper part of the base box, and a first protective groove is provided on the periphery of the top surface of the base box; a snap-fit ​​groove is provided on the top surface of the base box, and a cover plate that matches the snap-fit ​​groove is installed on the top surface of the base box; a second protective groove communicating with the first protective groove is provided on the periphery of the bottom surface of the cover plate, and a liner assembly is installed between the cover plate and the base box.

[0005] Preferably, a first metal plate made of flexible metal is installed in the first protective groove, a second metal plate made of flexible metal is installed in the second protective groove, and snap-fit ​​plates are installed above and below the inner cavity of the bottom box at the front and rear ends; the pad assembly is limited by the snap-fit ​​plates.

[0006] Preferably, the gasket assembly includes a base gasket installed on the inner top surface of the cover plate, a center gasket installed at the lower end of the base gasket, and a surface gasket installed at the lower end of the center gasket.

[0007] Preferably, the base pad, the center pad, and the surface pad form a protective assembly, and the base pad, the center pad, and the surface pad are all honeycomb structures, with a mirrored protective assembly installed on the bottom surface of the base box.

[0008] Preferably, the base pad has vertically formed positioning blocks at its front and rear ends, and each of the two positioning blocks has a horizontally formed positioning groove for a mating snap-fit ​​plate at its front end. The center pad and the surface pad have a first mounting groove and a second mounting groove for mating with the positioning blocks, respectively. The surface pad has locking grooves for mating with the positioning grooves at its front and rear ends.

[0009] Preferably, the center pad and the surface pad are installed by positioning blocks installed on the base pad, and the center pad, the surface pad and the base pad are fixed by snap-fit ​​plates, positioning grooves and locking grooves.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This utility model achieves efficient cushioning protection and lightweight design based on a three-layer honeycomb structure padding assembly. The protective assembly, consisting of a base pad, a central pad, and a surface pad, all adopt a honeycomb structure, significantly improving porosity and compressive strength. Furthermore, the base pad, central pad, and surface pad all employ different density manufacturing processes to protect the circuit board. The base pad resists the squeezing and impact during transportation, the central pad efficiently absorbs impact energy, and the surface pad prevents the circuit board from sliding, providing comprehensive and targeted cushioning performance. While ensuring protective effectiveness, it also achieves lightweight design, reducing packaging and transportation costs, and meeting the dual requirements of cushioning and weight reduction for precision circuit boards.

[0011] This invention achieves both convenient assembly and disassembly and electromagnetic protection through the cooperation of the base box, cover plate, gasket assembly, and metal plate. During installation, the quick-release slot can quickly separate the base box and cover plate, the snap-fit ​​slot can reduce the squeezing and misalignment between the two, and the gasket assembly, with the help of the positioning block, snap-fit ​​plate, and locking slot, can be fixed without precise alignment, greatly shortening the assembly time. At the same time, the first metal plate in the first protective slot and the second metal plate in the second protective slot abut against each other to form a Faraday cage effect, which can effectively isolate external electromagnetic interference, prevent the circuit board from being damaged by electromagnetic induction, and improve the safety of electronic components. The four-corner structure of the base box and cover plate can also initially resist external squeezing force and reduce the transmission of impact force to the gasket assembly, further ensuring the integrity of the circuit board. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a half-sectional schematic diagram of the overall structure proposed in this utility model; Figure 3 This is a schematic diagram of the snap-fit ​​plate structure proposed in this utility model; Figure 4This is a schematic diagram of the positioning groove and locking groove structure proposed in this utility model; Figure 5 The present utility model proposes Figure 2 Enlarged diagram of part A in the middle.

[0013] The numbers in the diagram are: 1. Base box; 2. Cover plate; 3. Quick release groove; 4. First protective groove; 5. Snap-fit ​​groove; 6. Second protective groove; 7. Snap-fit ​​plate; 8. Positioning groove; 9. First metal plate; 10. Locking groove; 11. Surface pad; 12. Center pad; 13. Base pad; 14. Positioning block; 15. Second metal plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example: See Figures 1 to 4 This utility model discloses a foam plastic gasket, including a base box 1. The base box 1 facilitates the protection of the circuit board by working with the cover plate 2 and the gasket assembly. The base box 1 is made of a flexible material. Quick-release grooves 3 are provided at the middle of both ends of the top of the base box 1, which facilitates the quick separation of the base box 1 and the cover plate 2. A first protective groove 4 is provided on the periphery of the top surface of the base box 1. The first protective groove 4 facilitates the subsequent installation of a first metal plate 9 in conjunction with the connection process. Together with the second metal plate 15 in the second protective groove 6, it forms a Faraday cage effect to protect the circuit board placed inside. A snap-fit ​​groove 5 is provided on the top surface of the base box 1, which helps to reduce the squeezing misalignment between the base box 1 and the cover plate 2. The top surface of the base box 1 is also equipped with a matching snap-fit ​​groove 5. Cover plate 2 provides complete protection for the circuit board protected by the gasket assembly inside the base box 1. A second protective groove 6, connecting to the first protective groove 4, is formed on the bottom periphery of cover plate 2, facilitating the installation of the second metal plate 15 in subsequent connection processes. A gasket assembly is installed between cover plate 2 and base box 1. A flexible metal first plate 9 is installed in the first protective groove 4, and a flexible metal second plate 15 is installed in the second protective groove 6. The first metal plate 9 and the second metal plate 15 form a Faraday cage to prevent external electromagnetic effects from protecting the circuit board. Clip-on plates 7 are installed at the top and bottom front and rear ends of the inner cavity of base box 1, limiting the gasket assembly. The clip-on plates 7 facilitate the limiting and fixing of the gasket assembly.

[0016] In this invention, the padding assembly includes a base pad 13 installed on the inner top surface of the cover plate 2. The base pad 13 helps resist the impact of compression during transportation, and its density should be ensured to be 0.12 g / cm³ through the manufacturing process. A center pad 12 is installed at the lower end of the base pad 13, which efficiently absorbs impact energy. The density of the center pad 12 should be ensured to be 0.08 g / cm³ through the manufacturing process. A surface pad 11 is installed at the lower end of the center pad 12, which helps prevent the circuit board from sliding. The density of the surface pad 11 should be ensured to be 0.15 g / cm³ through the manufacturing process. The overall weight of the protective assembly formed by the surface pad 11, center pad 12, and base pad 13 is 20% lower than that of a uniform pad with the same cushioning performance. The base pad 13, center pad 12, and surface pad 11 form the protective assembly, and all three have a honeycomb structure. The structure increases the porosity and compressive strength of the protective components. A mirrored protective component is installed on the bottom surface of the base box 1. The front and rear ends of the bottom of the base pad 13 are vertically provided with positioning blocks 14. The positioning blocks 14 facilitate the connection of the base pad 13 with the first mounting groove and the second mounting groove to the center pad 12 and the surface pad 11. The front ends of the two positioning blocks 14 are horizontally provided with positioning grooves 8 that cooperate with the snap-fit ​​plate 7. The positioning grooves 8 facilitate the fixed connection of the protective components with the locking groove 10 and the snap-fit ​​plate 7. The center pad 12 and the surface pad 11 are respectively provided with the first mounting groove and the second mounting groove that cooperate with the positioning blocks 14. The front and rear ends of the surface pad 11 are provided with locking grooves 10 that cooperate with the positioning grooves 8. The locking grooves 10 facilitate the guidance of the snap-fit ​​plate 7. The center pad 12 and the surface pad 11 are installed by the positioning blocks 14 installed on the base pad 13, and the center pad 12, the surface pad 11 and the base pad 13 are fixed by the snap-fit ​​plate 7, the positioning grooves 8 and the locking grooves 10.

[0017] Working Principle: In the use of this utility model, the base pad 13, center pad 12, and surface pad 11 must first be assembled. The positioning block 14 installed on the base pad 13 passes through the second mounting groove of the center pad 12 and the first mounting groove of the surface pad 11. Then, the assembled core component surface pad 11 is placed vertically upward on the inner bottom surface of the base box 1. During the placement of the core component in the base box 1, one side of the core component should be squeezed so that the snap-fit ​​plate 7 on one side is snapped into the positioning groove 8 opened by the corresponding positioning block 14 through the guide of the locking groove 10, snapping one side of the core component. Then, the other side is released, and it snaps into the snap-fit ​​plate 7 on the other end through its own elasticity. The snap-fit ​​speed of the other end can be accelerated by moving the surface pad 11. Then, the circuit board is placed on the top surface of the surface pad 11, and then another core component is installed, so that the two core components are aligned. The core component clamps the circuit board; then the cover plate 2 is snapped onto the top surface of the bottom box 1 through the snap-fit ​​groove 5, and the bottom box 1 and the cover plate 2 can be quickly separated through the quick-release groove 3. At this time, the first metal plate 9 installed in the first protective groove 4 and the second metal plate 15 installed in the second protective groove 6 abut against each other to generate the Faraday cage effect, preventing external electromagnetic induction from damaging the protected circuit board. During transportation, when external objects squeeze the padding, the bottom box 1 and the cover plate 2, as the first components to resist the squeezing force, will reduce the squeezing force to be transmitted to the core component through their own four-corner structure, thereby protecting the circuit board. Even if the squeezing force is too large, the snap-fit ​​groove 5 on the top surface of the bottom box 1 will maximize the connection with the cover plate 2. Furthermore, the three-layer structure composed of the base pad 13, the center pad 12 and the surface pad 11, combined with the honeycomb structure, will reduce most of the squeezing force and protect the circuit board.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A foam plastic liner, comprising a base box (1), characterized in that: The bottom box (1) has quick-release grooves (3) at the middle of both ends above, and the bottom box (1) has a first protective groove (4) on the periphery of the top surface; the bottom box (1) has a snap-fit ​​groove (5) on the top surface, and the bottom box (1) has a cover plate (2) that matches the snap-fit ​​groove (5) installed on the top surface; the cover plate (2) has a second protective groove (6) that connects to the first protective groove (4) on the periphery of the bottom surface; and a pad assembly is installed between the cover plate (2) and the bottom box (1).

2. The foam plastic liner according to claim 1, characterized in that: The first protective groove (4) is equipped with a first metal plate (9) made of flexible metal, the second protective groove (6) is equipped with a second metal plate (15) made of flexible metal, and the upper and lower front and rear ends of the bottom box (1) are equipped with snap-fit ​​plates (7); the pad assembly is limited by the snap-fit ​​plates (7).

3. The foam plastic liner according to claim 2, characterized in that: The liner assembly includes a base pad (13) installed on the inner top surface of the cover plate (2), a center pad (12) installed at the lower end of the base pad (13), and a surface pad (11) installed at the lower end of the center pad (12).

4. A foam plastic liner according to claim 3, characterized in that: The base pad (13), the center pad (12) and the surface pad (11) form a protective assembly, and the base pad (13), the center pad (12) and the surface pad (11) are all honeycomb structures. A mirrored protective assembly is installed on the bottom surface of the bottom box (1).

5. A foam plastic liner according to claim 4, characterized in that: The base pad (13) has a vertically arranged positioning block (14) at the front and rear ends of its bottom surface. The two positioning blocks (14) have a horizontally arranged positioning groove (8) for the matching snap-fit ​​plate (7) at their front ends. The center pad (12) and the surface pad (11) have a first mounting groove and a second mounting groove for the matching positioning block (14) respectively. The surface pad (11) has a locking groove (10) for the matching positioning groove (8) at its front and rear ends.

6. A foam plastic liner according to claim 5, characterized in that: The center pad (12) and the surface pad (11) are installed by the positioning block (14) installed on the base pad (13), and the center pad (12), the surface pad (11) and the base pad (13) are fixed by the snap plate (7), the positioning groove (8) and the locking groove (10).

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