A thermoplastic plastic housing

CN224722109UActive Publication Date: 2026-09-04SHENZHEN XINHONGHUI HARDWARE & PLASTIC CO LTD
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Patent Information

Application Number
CN202522197602.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2026-09-04
Estimated Expiration
2035-10-17

AI Technical Summary

Technical Problem

[0005]为了弥补以上不足,本实用新型提供了一种热塑性塑胶外壳,旨在改善了现有技术中无法快速拆卸防护壳,导致对内部零件进行维修时,会过于浪费时间的问题

Benefits of technology

本实用新型中,通过防护壳受力带动空心柱移动,空心柱移动带动卡块滑动,卡块受力带动连接杆转动,连接杆转动将套环带动滑动,套环滑动将侧壁的弹簧带动收缩,达到了可以快速拆卸防护壳的效果,解决了无法快速拆卸防护壳,导致对内部零件进行维修时,会过于浪费时间的问题,提高了热塑性塑胶外壳的便捷性。

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Abstract

The utility model relates to domestic appliance technical field discloses a thermoplastic plastic shell, including base, the base top fixedly connected with the protective shell, the protective shell lateral wall fixedly connected with the protection shell, the protective shell lateral wall fixedly connected with the receiving box, the protection shell lateral wall is provided with the clamping assembly, the clamping assembly includes the connecting block, the connecting block lateral wall fixedly connected in the protection shell lateral wall, the connecting block inside slide connection has the hollow post, the hollow post inside fixedly connected with the fixed column, the fixed column outer wall is provided with the spring, in the utility model, through the protective shell drive hollow post removal, hollow post drive the sliding of the clamping block, the clamping block drive connecting rod rotation, connecting rod rotation will slide the collar, the spring of the side wall is retracted to the collar, reached the effect that can quickly dismantle the protective shell, solved the problem that the protective shell cannot be quickly dismantled, leading to the maintenance of internal parts, will be too wasteful time problem, improve the convenience of thermoplastic plastic shell.
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Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a thermoplastic plastic shell. Background Technology

[0002] In modern manufacturing, thermoplastic housings are widely used in electronic devices, home appliances, automotive parts, and many other fields due to their advantages such as low cost, high plasticity, and light weight. As product functions continue to upgrade and users demand greater ease of maintenance, the design of thermoplastic housings needs continuous innovation to meet increasingly diverse market demands. This requires not only continuous optimization of material properties but also more efficient and convenient mechanical structures to enhance the overall competitiveness of products and improve user experience.

[0003] Most existing thermoplastic housings use traditional fixing methods. Common examples include integral injection-molded housings, where all parts are a single unit. When internal maintenance is required, it can only be done by force or destructive disassembly using complex tools. Others use simple glue bonding or basic screw fixing methods. During disassembly, the screws are prone to rusting or becoming difficult to loosen due to long-term disuse. Separating glued parts may damage the housing structure. Moreover, all these methods require a lot of time to remove the housing, seriously affecting maintenance efficiency.

[0004] However, traditional thermoplastic plastic casings have a significant drawback: the protective casing cannot be quickly disassembled. In practical use, when internal parts malfunction and require repair, the difficulty in disassembling the casing often requires repair personnel to spend a considerable amount of time on this task. This not only increases repair costs but also disrupts normal product use due to the extended repair time, reducing production and daily life efficiency and causing great inconvenience to users. Therefore, a new thermoplastic plastic casing is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a thermoplastic shell, which aims to improve the problem in the prior art that the protective shell cannot be quickly disassembled, resulting in excessive time wastage when repairing internal parts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A thermoplastic housing includes a base, a protective shell fixedly connected to the top of the base, a protective shell fixedly connected to the side wall of the protective shell, a receiving box fixedly connected to the side wall of the protective shell, and a locking assembly provided on the side wall of the protective shell. The engaging assembly includes a connecting block, the sidewall of which is fixedly connected to the sidewall of the protective shell. A hollow column is slidably connected inside the connecting block, and a fixing column is fixedly connected inside the hollow column. A spring is provided on the outer wall of the fixing column, one end of which is fixedly connected to the inside of the hollow column, and the other end of which is fixedly connected to a collar. The inner wall of the collar is slidably connected to the outer wall of the fixing column, and a connecting rod is rotatably connected to the inner wall of the collar. A locking block is rotatably connected to the sidewall of the connecting rod, and the outer wall of the locking block is slidably connected to the inside of the connecting block. A slide rail is fixedly connected inside the hollow column, and a slider is slidably connected to the sidewall of the slide rail. The sidewall of the slider is fixedly connected to the sidewall of the locking block. A rotating assembly is provided inside the protective shell. As a further description of the above technical solution: The rotating assembly includes louvers, the sidewalls of which are rotatably connected to the inside of the protective housing. As a further description of the above technical solution: The protective shell has a sliding groove inside, and a wrench is slidably connected to the inner wall of the protective shell; As a further description of the above technical solution: The wrench has a connecting ring fixedly connected inside, and a connecting plate is provided on the outer wall of the connecting ring; As a further description of the above technical solution: A movable plate is fixedly connected to the side wall of the connecting plate, and a rotating plate is rotatably connected to the side wall of the movable plate. As a further description of the above technical solution: The rotating plate is rotatably connected to a louver on its side wall, and the louver side wall is rotatably connected to the inside of the protective shell. As a further description of the above technical solution: The outer wall of the wrench is slidably connected to the inside of the slide groove, and the side wall of the movable plate is slidably connected to the side wall of the louver.

[0007] This utility model has the following beneficial effects: In this invention, the hollow column moves under the force of the protective shell, the hollow column moves and the locking block slides, the locking block rotates under the force of the force, the rotating connecting rod moves the collar to slide, and the sliding collar moves the spring on the side wall to retract, thus achieving the effect of quick disassembly of the protective shell. This solves the problem that the inability to quickly disassemble the protective shell leads to excessive time wastage when repairing internal parts, and improves the convenience of thermoplastic shells.

[0008] In this invention, by turning a wrench, the wrench moves the connecting ring, which in turn moves the connecting plate and the moving plate up and down. Subsequently, the moving plate rotates the rotating plate, which in turn rotates the louvers, thus achieving the effect of adjusting the air outlet. This solves the problem of not being able to adjust according to actual usage, resulting in inapplicability in different situations, and improves the practicality of the thermoplastic shell. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of a thermoplastic plastic shell proposed in this utility model; Figure 2 This is a schematic diagram of the side wall structure of a receiver box with a thermoplastic outer shell according to the present invention; Figure 3 This is a schematic cross-sectional view of a protective shell made of thermoplastic plastic shell according to the present invention. Figure 4 This is a schematic diagram of the internal structure of a thermoplastic outer shell according to the present invention. Figure 5 for Figure 3 Enlarged view of point A in the middle; Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0010] Legend: 1. Base; 2. Protective shell; 3. Protective shell; 4. Receiver box; 5. Louver; 6. Hollow column; 7. Locking block; 8. Connecting rod; 9. Collar; 10. Fixing column; 11. Spring; 12. Slider; 13. Slide rail; 14. Slide groove; 15. Wrench; 16. Connecting ring; 17. Connecting plate; 18. Rotating plate; 19. Moving plate; 20. Connecting block. Detailed Implementation

[0011] 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.

[0012] Reference Figures 1-3 and Figure 5This utility model provides one embodiment: a thermoplastic plastic shell, including a base 1, which is typically made of high-density polyethylene (HDPE). HDPE has high strength and rigidity, providing a stable support foundation for the entire shell. A protective shell 3 is fixedly connected to the top of the base 1, and a protective shell 2 is fixedly connected to the side wall of the protective shell 3. The protective shells 3 and 2 are mostly made of acrylonitrile-butadiene-styrene copolymer. ABS has good mechanical properties, heat resistance, and molding processability. Its high impact strength allows the protective shells 3 and 2 to effectively resist external impacts and protect internal components from collision damage. A receiving box 4 is fixedly connected to the side wall of the protective shell 3, and the receiving box 4 can be made of polycarbonate. PC has excellent transparency and mechanical properties. High transparency allows users to easily view the components or status indicators inside the receiving box 4, such as indicator lights for receiving signals. The side wall of the protective shell 2 is provided with a locking assembly. The engaging assembly includes a connecting block 20, which is typically made of nylon (PA). Nylon has high strength, wear resistance, and self-lubricating properties. The sidewall of the connecting block 20 is fixedly connected to the sidewall of the protective shell 2. A hollow column 6 is slidably connected inside the connecting block 20, and a fixing column 10 is fixedly connected inside the hollow column 6. The hollow column 6 and the fixing column 10 can be made of stainless steel. Stainless steel has strong corrosion resistance, preventing rust and corrosion in humid or corrosive environments, ensuring the mechanical integrity and reliability of the engaging assembly. A spring 11 is provided on the outer wall of the fixing column 10. One end of the spring 11 is fixedly connected to the inside of the hollow column 6, and the other end of the spring 11 is fixedly connected to a collar 9, which can be made of polyoxymethylene (POM). POM possesses excellent mechanical properties, wear resistance, and a low coefficient of friction. The inner wall of the collar 9 is slidably connected to the outer wall of the fixed column 10. A connecting rod 8 is rotatably connected to the inner wall of the collar 9. The side wall of the connecting rod 8 is rotatably connected to the locking block 7. The outer wall of the locking block 7 is slidably connected to the inside of the connecting block 20. A slide rail 13 is fixedly connected inside the hollow column 6. A slider 12 is slidably connected to the side wall of the slide rail 13. The side wall of the slider 12 is fixedly connected to the side wall of the locking block 7. The connecting rod 8 and the locking block 7 are made of aluminum alloy. Aluminum alloy is lightweight, reducing the overall weight of the locking assembly while maintaining sufficient strength, facilitating operation. A rotating component is installed inside the protective shell 3. Specifically, during the use of the thermoplastic outer shell, when the protective shell 3 is disassembled, a precise external force needs to be applied to the hollow column 6 on the side wall. As the hollow column 6 moves under force, it causes the connected locking block 7 to move synchronously, and the locking block 7 slides on the track inside the connecting block 20. During the sliding process of the locking block 7, its displacement causes the connecting rod 8 on the side wall to be stressed and rotate around a specific axis. The rotation of the connecting rod 8 is further transmitted to the collar 9 on the side wall, causing the collar 9 to slide stably on the outer wall of the fixed column 10. As the collar 9 slides, its interaction with the spring 11 is also initiated. The movement of the collar 9 exerts a compressive force on the spring 11 on the side wall, causing the spring 11 to gradually move from its naturally extended state to a contracted state. During this process, the locking block 7 is continuously subjected to force, which is then transmitted to the slider 12, causing the slider 12 to slide on the side wall of the slide rail 13. This ensures that the movement trajectory of each component is accurate throughout the disassembly process, and ultimately achieves the effect of quickly disassembling the protective shell 3. This greatly improves the convenience and efficiency of the operation and provides strong support for subsequent maintenance, repair or replacement work.

[0013] Reference Figure 1 , Figure 4 and Figure 6 The rotating component includes louvers 5, which are typically made of polyvinyl chloride (PVC). PVC has good weather resistance, chemical stability, and a certain degree of flexibility. The sidewalls of louvers 5 are rotatably connected to the inside of the protective shell 3. The protective shell 3 has a sliding groove 14 inside, and a wrench 15 is slidably connected to the inner wall of the protective shell 3. A connecting ring 16 is fixedly connected inside the wrench 15, and the connecting ring 16 can be made of stainless steel. Stainless steel has strong corrosion resistance and can remain stable in the environment inside the protective shell 3. The outer wall of the connecting ring 16 is provided with a connecting plate 17. The connecting plate 17 is made of high-strength engineering plastic, which has high mechanical strength, rigidity and good dimensional stability. The side wall of the connecting plate 17 is fixedly connected to a movable plate 19. The movable plate 19 can be made of aluminum alloy to reduce weight while ensuring a certain strength. Its rotational connection and sliding connection with the rotating plate 18 and the inner wall of the protective shell 3 require high precision and stability. The side wall of the movable plate 19 is rotatably connected to the rotating plate 18. The side wall of the rotating plate 18 is rotatably connected to the louver 5. The side wall of the louver 5 is rotatably connected inside the protective shell 3. The outer wall of the wrench 15 is slidably connected inside the slide groove 14. The side wall of the movable plate 19 is slidably connected to the side wall of the louver 5. Specifically, when an increase in internal temperature is detected in the protective shell 3, requiring heat dissipation, the first step is to turn the wrench 15 at a specific position. Under human intervention, the wrench 15 generates mechanical force, driving the tightly connected connecting ring 16 to slide smoothly along the inner wall of the protective shell 3. Because of the stable connection between the connecting ring 16 and the connecting plate 17, the sliding of the connecting ring 16 directly causes the connecting plate 17 to move synchronously. Subsequently, the movement of the connecting plate 17 generates a certain pulling force, causing the connected moving plate 19 to move vertically along a preset track. The vertical movement of the moving plate 19 then causes the rotating plate 18 located on the side wall to rotate around a specific axis. When the rotating plate 18 rotates, its mechanical contact with the side wall louvers 5 causes the louvers 5 to rotate as well, achieving the key purpose of adjusting the size of the air outlet. This allows for precise and effective control of the rate of heat dissipation inside the protective shell 3 according to actual heat dissipation needs, ensuring that the internal temperature of the equipment is maintained within a reasonable range. This effectively guarantees the stable and efficient operation of the equipment, reduces the risk of various failures caused by overheating, extends the service life of the equipment, improves the overall working performance and reliability, and lays a solid foundation for the continuous and stable operation of the entire system.

[0014] Working principle: When using a thermoplastic plastic shell, to disassemble the protective shell 3, the hollow column 6 on the side wall is first moved. The movement of the hollow column 6 moves the locking block 7, causing it to slide inside the connecting block 20. Then, during the movement of the locking block 7, the connecting rod 8 on the side wall is rotated. The rotation of the connecting rod 8 will then move the collar 9 on the side wall, causing it to slide on the outer wall of the fixed column 10. Subsequently, as the collar 9 moves, the spring 11 on the side wall will contract. During this process, the locking block 7 is subjected to force, causing the slider 12 to move. The movement of the slider 12 will cause it to slide on the side wall of the slide rail 13, thus limiting its movement and achieving the effect of quickly disassembling the protective shell 3. Then, when dissipating heat inside the protective shell 3, first turn the lever 15. The lever 15 will drive the connecting ring 16 to move on the inner wall of the protective shell 3. As the connecting ring 16 moves, it will drive the connecting plate 17. Then the connecting plate 17 will move the moving plate 19 connected to it to move up and down. As the moving plate 19 moves, it will drive the rotating plate 18 on the side wall to rotate. During the rotation of the rotating plate 18, it will drive the louvers 5 on the side wall to rotate, thus achieving the effect of adjusting the size of the air outlet.

[0015] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thermoplastic housing, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the protective shell (3), the protective shell (3) is fixedly connected to the side wall of the protective shell (3), the receiving box (4) is fixedly connected to the side wall of the protective shell (3), and the protective shell (2) is provided with a locking component. The engaging assembly includes a connecting block (20), the sidewall of which is fixedly connected to the sidewall of the protective shell (2). A hollow column (6) is slidably connected inside the connecting block (20), and a fixing column (10) is fixedly connected inside the hollow column (6). A spring (11) is provided on the outer wall of the fixing column (10). One end of the spring (11) is fixedly connected inside the hollow column (6), and the other end of the spring (11) is fixedly connected to a collar (9). The inner wall of the collar (9) slides... The inner wall of the collar (9) is rotatably connected to the outer wall of the fixed column (10), and the side wall of the connecting rod (8) is rotatably connected to the locking block (7). The outer wall of the locking block (7) is slidably connected to the inside of the connecting block (20). The hollow column (6) is fixedly connected to the inside of the slide rail (13), and the side wall of the slide rail (13) is slidably connected to the slider (12). The side wall of the slider (12) is fixedly connected to the side wall of the locking block (7). The protective shell (3) is provided with a rotating component inside.

2. The thermoplastic outer shell according to claim 1, characterized in that: The rotating assembly includes a louver (5), the sidewall of which is rotatably connected to the inside of the protective shell (3).

3. The thermoplastic outer shell according to claim 2, characterized in that: The protective shell (3) has a sliding groove (14) inside, and a wrench (15) is slidably connected to the inner wall of the protective shell (3).

4. The thermoplastic outer shell according to claim 3, characterized in that: The wrench (15) is fixedly connected to a connecting ring (16), and a connecting plate (17) is provided on the outer wall of the connecting ring (16).

5. A thermoplastic outer shell according to claim 4, characterized in that, A movable plate (19) is fixedly connected to the side wall of the connecting plate (17), and a rotating plate (18) is rotatably connected to the side wall of the movable plate (19).

6. A thermoplastic outer shell according to claim 5, characterized in that: The rotating plate (18) has a louver (5) rotatably connected to its side wall, and the louver (5) is rotatably connected to the inside of the protective shell (3).

7. A thermoplastic outer shell according to claim 5, characterized in that: The outer wall of the wrench (15) is slidably connected to the inside of the slide groove (14), and the side wall of the movable plate (19) is slidably connected to the side wall of the louver (5).