High impact-resistant PCABS alloy plastic bottom shell

Abstract

This utility model relates to the field of plastic base shell technology, specifically a high-impact resistant PCABS alloy plastic base shell. The utility model includes a base shell body, with four circular compartments fixedly connected to the lower surface of the body. Circular blocks are slidably connected to the inner walls of the compartments, and friction pads are fixedly connected to the inner walls of the circular blocks. Two slots are formed on the arc surface of the circular blocks, and a sliding groove is formed on the inner wall of each compartment. A drive rod is threaded through the sliding groove. This invention solves the problem that, to enhance stability, laptop base shells typically require friction pads fixed to the bottom. However, existing friction pads are mostly one-piece designs and cannot be replaced. With prolonged use, wear and aging friction pads lead to decreased anti-slip performance, affecting the stability of the laptop and potentially causing slippage and collisions due to insufficient friction with the placement surface, thus damaging the delicate internal components of the laptop.

Description

Technical Field

[0001] This utility model relates to the field of plastic base shell technology, and in particular to a high impact-resistant PCABS alloy plastic base shell. Background Technology

[0002] In electronic devices, home appliances, and other products, the bottom shell is an important structural component that needs to have good impact resistance to protect internal components from damage caused by external forces. High-impact resistant PCABS alloy plastic bottom shells are widely used, including in laptop computers.

[0003] Regarding the above-mentioned and existing related technologies, the inventor believes that the following defects often exist: In order to enhance the stability of placement, the bottom shell of a laptop usually needs to be fixed with a friction pad at the bottom. However, most existing friction pads are one-piece designs and cannot be replaced. As the usage time increases, the wear and aging of the friction pad will lead to a decrease in anti-slip performance, which not only affects the stability of the laptop but may also cause the device to slide or collide due to insufficient friction with the placement surface, thereby damaging the precision components inside the laptop. Therefore, in order to address the above problems, a high-impact resistant PCABS alloy plastic bottom shell is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where, to enhance stability, a friction pad is typically fixed to the bottom of the laptop's bottom shell. However, most existing friction pads are one-piece designs and cannot be replaced. As usage time increases, the worn and aged friction pads will lead to a decrease in anti-slip performance, which not only affects the stability of the laptop but may also cause the device to slide or collide due to insufficient friction with the placement surface, thereby damaging the precision components inside the laptop. Therefore, this invention proposes a high-impact resistant PCABS alloy plastic bottom shell.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-impact resistant PCABS alloy plastic bottom shell, comprising a bottom shell body, four circular chambers fixedly connected to the lower surface of the bottom shell body, circular ring blocks slidably connected to the inner walls of the circular chambers, friction pads fixedly connected to the inner walls of the circular ring blocks, two slots formed on the arc surface of the circular ring blocks, a sliding groove formed on the inner wall of the circular chambers, a drive rod threaded through the sliding groove, a locking block rotatably connected to one end of the drive rod, a circular shaft fixedly connected to the other end of the drive rod, and the locking block slidably connected to the inner wall of the locking groove.

[0006] The effect achieved by the above components is as follows: when the friction pad wears out due to long-term use, the drive rod can be rotated to disengage the locking block from the slot, making it easy to remove the ring block along with the friction pad from the round compartment for replacement. This facilitates the maintenance of the stable and anti-slip performance of the bottom shell body when it is placed, ensures that the bottom shell body always has good cushioning and shock absorption effects, extends the overall service life of the bottom shell body, and reduces the cost of frequently replacing the bottom shell body due to friction pad failure.

[0007] Preferably, the inner wall of the slide groove has two square grooves, and the inner walls of the two square grooves are slidably connected to a sliding plate. The sliding plate is fixedly connected to the surface of the block. The addition of square grooves to the inner wall of the slide groove and the cooperation of the sliding plate can guide and limit the block.

[0008] The effect achieved by the above components is that when the drive rod rotates and drives the locking block to move, the slide plate slides in the square groove, which can ensure that the locking block moves smoothly along the predetermined trajectory and accurately engages or disengages with the locking groove.

[0009] Preferably, the circular arc surface of the circular shaft is provided with a plurality of strip grooves, and the lower end of the friction pad is provided with a plurality of anti-slip patterns.

[0010] The effects achieved by the above components are as follows: the strip provides the operator with a larger force application area and a more stable grip point; it is easier and less likely to slip when adjusting the position of the friction pad by rotating the round shaft; the anti-slip texture at the bottom of the friction pad can effectively increase the friction with the surface on which it is placed, so that the bottom of the laptop is not easy to slip even on a relatively smooth desktop or when subjected to external impact.

[0011] Preferably, the surface of the bottom shell body is provided with sliding holes, and a dustproof mesh is slidably connected to the inner wall of the sliding holes. Two mounting grooves are provided on the inner wall of the sliding holes, and springs are fixedly connected to the inner walls of the mounting grooves. A round rod is fixedly connected to the other end of the springs. Round grooves are provided on both sides of the dustproof mesh, and the round rod...

[0012] It slides through the inner wall of the circular groove.

[0013] The effects achieved by the above components are as follows: the installation of the dust filter ensures that the heat inside the bottom shell can be effectively dissipated; at the same time, it replaces the large heat dissipation holes on the traditional bottom shell, preventing dust from directly entering the equipment through the heat dissipation holes. In addition, the dust filter adopts a detachable structure, which can be disassembled for cleaning or replacement periodically.

[0014] Preferably, the lower surface of the bottom shell body has two arc-shaped holes, and an arc-shaped block is slidably connected to the inner wall of the arc-shaped hole. The arc-shaped block is fixedly connected to the arc surface of the round rod.

[0015] The effect achieved by the above components is that when it is necessary to disassemble the dustproof net, the round rod can be moved away from the inner wall of the round groove by pulling the arc block, making the disassembly of the dustproof net more convenient.

[0016] Preferably, a plurality of buffer blocks are fixedly connected to the inner wall of the bottom shell body, and the buffer blocks are made of silicone rubber.

[0017] The effect achieved by the above-mentioned components is that the buffer block can prevent the parts inside the equipment from colliding and squeezing with the bottom shell, thereby reducing the direct impact on the parts.

[0018] Preferably, the front end of the round rod is arc-shaped.

[0019] The effect achieved by the above components is that when installing the dustproof net, the arc-shaped front end can play a guiding role, making it easier for the round rod to be aligned with the round groove, reducing the difficulty of installation, and reducing the friction between the round rod and the side wall of the sliding hole.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] In this invention, the drive rod is rotated to disengage the locking block from the slot, making it easy to remove the ring block along with the friction pad from the round chamber for replacement. This facilitates the maintenance of the stable and anti-slip performance of the bottom shell body when it is placed, ensuring that the bottom shell body always has good cushioning and shock absorption effects, extending the overall service life of the bottom shell body, and reducing the cost of frequently replacing the bottom shell body due to friction pad failure. Attached Figure Description

[0022] Figure 1 is a three-dimensional structural schematic diagram of this utility model;

[0023] Figure 2 is a rear view of Figure 1 in this utility model;

[0024] Figure 3 is a schematic diagram of the structure of the circular bin in this utility model;

[0025] Figure 4 is a schematic diagram of the internal structure of the slide groove in this utility model;

[0026] Figure 5 is a schematic diagram of the sliding hole in this utility model;

[0027] Figure 6 is an enlarged view of section A in the figure of this utility model.

[0028] Legend: 1. Bottom shell body; 2. Circular compartment; 3. Circular ring block; 4. Friction pad; 5. Slot; 6. Slide groove; 7. Drive rod; 8. Locking block; 9. Circular shaft; 10. Square groove; 11. Slide plate; 12. Strip groove; 13. Anti-slip texture; 14. Sliding hole; 15. Dustproof net; 16. Circular groove; 17. Spring; 18. Circular rod; 19.

[0029] 20. Arc-shaped hole; 21. Arc-shaped block; 22. Buffer block. Detailed Implementation

[0030] Reference Figures 1-6As shown, this utility model provides a technical solution: a high-impact resistant PCABS alloy plastic bottom shell, including a bottom shell body 1. Four circular chambers 2 are fixedly connected to the lower surface of the bottom shell body 1. Circular ring blocks 3 are slidably connected to the inner walls of the circular chambers 2. Friction pads 4 are fixedly connected to the inner walls of the circular ring blocks 3. Two slots 5 are formed on the arc surface of the circular ring blocks 3. A sliding groove 6 is formed on the inner wall of the circular chambers 2. A drive rod 7 is threaded through the sliding groove 6. One end of the drive rod 7 is rotatably connected to a locking block 8, and the other end of the drive rod 7 is fixedly connected to a circular shaft 9. The locking block 8 and the locking groove... The inner wall of the slide 5 is slidably connected. When the friction pad 4 wears out due to long-term use, the drive rod 7 can be rotated to disengage the locking block 8 from the locking slot 5, making it easy to remove the ring block 3 along with the friction pad 4 from the round compartment 2 for replacement. This facilitates maintaining the stable and anti-slip performance of the bottom shell body 1 when it is placed, ensuring that the bottom shell body 1 always has a good cushioning and shock absorption effect, extending the overall service life of the bottom shell body 1, and reducing the cost of frequently replacing the bottom shell body 1 due to the failure of the friction pad 4. The inner wall of the slide 6 has two square grooves 10, and the inner walls of the two square grooves 10 are slidably connected to the sliding plate 1. 1. The slide plate 11 is fixedly connected to the surface of the locking block 8. A square groove 10 is added to the inner wall of the slide groove 6 and works with the slide plate 11 to guide and limit the locking block 8. When the drive rod 7 rotates and moves the locking block 8, the slide plate 11 slides in the square groove 10, ensuring that the locking block 8 moves smoothly along the predetermined trajectory and accurately engages or disengages with the locking groove 5. The arc surface of the round shaft 9 is provided with several strip grooves 12, and the lower end of the friction pad 4 is provided with several anti-slip textures 13. The strip grooves 12 provide the operator with a larger force application area and a more stable gripping point. Adjusting the position of the friction pad 4 with the movable circular shaft 9 is more effortless and less prone to slippage. The anti-slip texture 13 at the lower end of the friction pad 4 effectively increases the friction with the surface it is placed on. Even on a relatively smooth desktop or when subjected to external impact, the laptop bottom case is not prone to slippage. The surface of the bottom case body 1 has sliding holes 14, and a dust filter 15 is slidably connected to the inner wall of the sliding holes 14. Two mounting grooves are formed on the inner wall of the sliding holes 14, and springs 17 are fixedly connected to the inner wall of the mounting grooves. A round rod 18 is fixedly connected to the other end of the springs 17. Circular grooves 16 are formed on both sides of the dust filter 15.

[0031] The round rod 18 is slidably connected to the inner wall of the round groove 16. The installation of the dustproof net 15 ensures that the heat inside the bottom shell body 1 can be effectively dissipated. At the same time, it replaces the large-area heat dissipation holes on the traditional bottom shell body 1, preventing dust from directly entering the equipment through the heat dissipation holes. In addition, the dustproof net 15 adopts a detachable structure, which can be disassembled for cleaning or replacement periodically. Two arc-shaped holes 19 are opened on the lower surface of the bottom shell body 1. Arc-shaped blocks 20 are slidably connected to the inner wall of the arc-shaped holes 19. The arc-shaped blocks 20 are fixedly connected to the arc surface of the round rod 18. When it is necessary to remove the dustproof net 15, it can be... By pulling the arc-shaped block 20, the round rod 18 is moved away from the inner wall of the round groove 16, making it easier to disassemble the dustproof net 15. Several buffer blocks 21 are fixedly connected to the inner wall of the bottom shell body 1. The buffer blocks 21 are made of silicone rubber. The buffer blocks 21 can prevent the parts inside the equipment from colliding and squeezing with the bottom shell, thereby reducing the direct impact on the parts. The front end of the round rod 18 is arc-shaped. When installing the dustproof net 15, the arc-shaped front end can play a guiding role, making it easier for the round rod 18 to be aligned with the round groove 16, reducing the installation difficulty, and reducing the friction between the round rod 18 and the side wall of the sliding hole 14.

[0032] Working principle: When the friction pad 4 needs to be replaced, rotating the round shaft 9 drives the drive rod 7 to rotate. The locking block 8 on the drive rod 7 moves linearly along the slide groove 6 under the guidance and limitation of the square groove 10 and the sliding plate 11. When the locking block 8 disengages from the groove 5, the ring block 3 and the friction pad 4 can be removed. The strip groove 12 on the surface of the round shaft 9 increases the friction force, making manual operation easier. The anti-slip texture 13 on the bottom of the friction pad 4 increases the coefficient of friction with the contact surface, improving the stability of the bottom shell. The dustproof net 15 can effectively block dust from entering the equipment while ensuring ventilation and heat dissipation, extending its service life. When cleaning is required, pulling the arc block 20 drives the round rod 18 to move horizontally, compressing or releasing the spring 17. When the round rod 18 disengages from the round groove 16 of the dustproof net 15, the dustproof net 15 can be pulled out for cleaning; after inserting the dustproof net 15, the spring 17 rebounds, causing the round rod 18 to lock into the round groove 16 for fixation. The arc-shaped design at the front end of the round rod 18 serves as a guide when installing the dustproof net 15, making it easier to align the round rod 18 with the round groove 16 and reducing the difficulty of operation. The silicone rubber buffer block 21 on the inner wall of the bottom shell body 1 undergoes elastic deformation when subjected to external impact, absorbing and dispersing the impact force and reducing direct damage to internal precision components.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A high impact PCABS alloy plastic chassis, comprising a chassis body (1), characterized in that: Four circular chambers (2) are fixedly connected to the lower surface of the bottom shell body (1). A circular ring block (3) is slidably connected to the inner wall of the circular chamber (2). A friction pad (4) is fixedly connected to the inner wall of the circular ring block (3). Two slots (5) are opened on the arc surface of the circular ring block (3). A sliding groove (6) is opened on the inner wall of the circular chamber (2). A drive rod (7) is threaded through the sliding groove (6). A locking block (8) is rotatably connected to one end of the drive rod (7). A circular shaft (9) is fixedly connected to the other end of the drive rod (7). The locking block (8) is slidably connected to the inner wall of the slot (5).

2. A high impact PCABS alloy plastic backplane according to claim 1, characterized in that: The inner wall of the slide (6) has two square grooves (10), and the inner walls of the two square grooves (10) are slidably connected to a slide plate (11). The slide plate (11) is fixedly connected to the surface of the block (8). The addition of square grooves to the inner wall of the slide and the cooperation of the slide plate can guide and limit the block.

3. A high impact PCABS alloy plastic back housing according to claim 1, characterized in that: The circular shaft (9) has several grooves (12) on its arc surface, and the friction pad (4) has several anti-slip patterns (13) at its lower end.

4. A high impact PCABS alloy plastic backplane according to claim 1, characterized in that: The surface of the bottom shell body (1) is provided with a sliding hole (14). A dustproof net (15) is slidably connected to the inner wall of the sliding hole (14). Two mounting grooves are provided on the inner wall of the sliding hole (14). A spring (17) is fixedly connected to the inner wall of the mounting groove. A round rod (18) is fixedly connected to the other end of the spring (17). A round groove (16) is provided on both sides of the dustproof net (15). The round rod (18) is slidably connected to the inner wall of the round groove (16).

5. A high impact PCABS alloy plastic back housing according to claim 1, characterized in that: The lower surface of the bottom shell body (1) has two arc-shaped holes (19), and the inner surface of the arc-shaped holes (19) is... The wall is slidably connected with an arc-shaped block (20), which is fixedly connected to the arc surface of the round rod (18).

6. A high impact PCABS alloy plastic chassis according to claim 1, characterized in that: The inner wall of the bottom shell body (1) is fixedly connected with several buffer blocks (21), and the buffer blocks (21) are made of silicone rubber.

7. A high impact PCABS alloy plastic back housing according to claim 4, characterized in that: The front end of the round rod (18) is arc-shaped.

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