Tail cover of a blister forming structure

Abstract

The utility model discloses a kind of suction plastic forming structure's tail cover, including shell cover, arc flow guide groove, oblique heat dissipation hole, force bearing net cover, scratch-resistant coating, buckle groove and fastening buckle;Arc flow guide groove is set on the both sides outer wall of shell cover, oblique heat dissipation hole is set on the both sides outer wall of shell cover, and oblique heat dissipation hole is located below arc flow guide groove;The utility model is structured with design, the device is through optimizing multilayer composite structure design, integrated heat dissipation, dustproof function and improvement assembly maintenance mode, effectively solve the technical pain point of existing suction plastic tail cover, by surface layer reinforced coating, middle layer grid force bearing structure, multilayer composite design of inner layer elastic attachment structure, construct surface scratch-resistant, middle layer force bearing, inner layer buffer gradient protection system, surface layer reinforced coating is formed high-hardness surface layer by molecular crosslinking, effectively resist scratch caused by daily friction, while enhancing shell environmental aging resistance.

Description

Technical Field

[0001] This utility model relates to the field of vacuum forming technology, and in particular to a tail cover with a vacuum forming structure. Background Technology

[0002] Vacuum-formed tail covers, used in small household appliances, power tools, and small mechanical equipment, primarily protect the cable interfaces, control components, and internal circuits at the rear of the equipment. They also assist in heat dissipation and cable management. Currently, tail covers for small equipment are mostly manufactured using vacuum forming or injection molding processes. While vacuum-formed tail covers offer advantages such as lightweight, high forming efficiency, and low cost, their structural design generally suffers from the following technical shortcomings: insufficient structural strength, poor protective performance, and inadequate heat dissipation and dustproof design. Existing vacuum-formed tail covers are mostly single-layer HIPS or PP material structures, lacking effective load-bearing reinforcement designs and weak impact resistance. Under equipment handling, accidental drops, or minor collisions during daily use, the shell is prone to cracking, failing to effectively protect the interfaces, cables, and internal components at the rear of the equipment. Furthermore, the single-layer structure lacks scratch-resistant surface reinforcement, making it susceptible to scratches from friction during long-term use, affecting aesthetics and structural sealing. Some vacuum-formed tail covers... To simplify the process, the cover lacks a heat dissipation structure, preventing the timely discharge of hot air generated during equipment operation. Long-term accumulation can lead to high-temperature aging of internal components, shortening the equipment's lifespan. Furthermore, some tail covers, while having ventilation holes, use a straight-hole design without a corresponding dustproof structure. Straight-hole ventilation cannot guide airflow in a directional manner, resulting in low heat dissipation efficiency. Dust can easily enter the equipment through the ventilation holes, adhering to circuits or interfaces, causing poor contact, short circuits, and other malfunctions. Secondly, there are issues with poor assembly compatibility, inconvenient maintenance, and a lack of fine protection, leading to insufficient equipment compatibility. Some tail covers use fixed dustproof components that cannot be disassembled for cleaning. After a period of use, the dustproof mesh accumulates dust and becomes clogged, not only losing its dustproof function but also hindering heat dissipation, further increasing the risk of overheating. The contact surface between the thermoforming tail cover and the equipment tail is often a rigid structure without targeted cushioning or scratch-resistant structures. When the equipment vibrates during operation, the tail cover easily rubs against the equipment surface, causing paint peeling or surface scratches. Utility Model Content

[0003] The purpose of this invention is to provide a tail cover with a vacuum-formed structure to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a tail cover with a vacuum forming structure, including an outer shell cover, an arc-shaped flow guide groove is provided on both sides of the outer wall of the outer shell cover, an oblique heat dissipation hole is provided on both sides of the outer wall of the outer shell cover, and the oblique heat dissipation hole is located below the arc-shaped flow guide groove, a base is fixedly connected to the bottom of the outer shell cover, and an anti-scratch coating is provided on the outer surface of the outer shell cover.

[0005] As a further technical solution of this utility model, the upper surfaces on both sides of the base are provided with side threaded holes, and the upper surfaces around the base are provided with first threaded holes and second threaded holes.

[0006] As a further technical solution of this utility model, fixing bars are fixedly connected to both inner walls of the outer shell, fixing holes are opened on the upper surface of the fixing bars, and a dustproof net is provided at the bottom of the outer shell, with connecting bars fixedly connected to both sides of the dustproof net.

[0007] As a further technical solution of this utility model, the upper surface of the connecting bar is provided with an installation hole, and a pull buckle is engaged in the installation hole and engaged in the fixing hole.

[0008] As a further technical solution of this utility model, a load-bearing mesh cover is provided inside the outer shell, and a middle layer of soft pad is fixedly connected to the bottom outer surface of the load-bearing mesh cover.

[0009] As a further technical solution of this utility model, an inner cover is fixedly connected to the bottom outer surface of the middle layer cushion, and a rubber layer is provided on the inner cover.

[0010] As a further technical solution of this utility model, a buckle groove is provided on the outer wall of the end of the outer shell cover, a dust cover is provided on the outer wall of the end of the outer shell cover, and a fastening buckle is fixedly connected to one side of the outer wall of the dust cover, and the fastening buckle is engaged in the buckle groove.

[0011] Compared with existing technologies, the beneficial effects achieved by this utility model are as follows: This utility model adopts a structured design. By optimizing the multi-layer composite structure design, integrating heat dissipation and dustproof functions, and improving assembly and maintenance methods, this device effectively solves the technical pain points of existing blister tail covers. Through a multi-layer composite design consisting of a surface reinforcing coating, a middle mesh load-bearing structure, and an inner elastic bonding structure, it constructs a gradient protection system with surface scratch resistance, middle load-bearing capacity, and inner buffering. The surface reinforcing coating forms a high-hardness surface layer through molecular cross-linking, effectively resisting scratches caused by daily friction and enhancing the shell's resistance to environmental aging. The middle mesh load-bearing structure is designed based on the principle of multi-directional load dispersion, which can evenly transfer external impact loads to the entire load-bearing surface, preventing shell breakage. The inner elastic bonding structure absorbs vibration energy during equipment operation through locally applied elastic material, avoiding rigid contact... This device mitigates surface wear caused by contact with the equipment while enhancing assembly stability, achieving a balance between high-strength protection and meticulous safeguarding. It employs a combination of a directional airflow structure, inclined ventilation holes, and a detachable filter assembly. The directional airflow structure guides the internal hot airflow along a preset path, improving heat exchange efficiency. The inclined ventilation holes increase the ventilation area while using gravity to reduce vertical dust ingress. The detachable filter assembly further intercepts airborne particulate impurities, preventing dust from entering the equipment. An inner layer features a locally elastic fit structure covering critical areas such as equipment interfaces and cable contacts. This absorbs vibration energy through elastic deformation, preventing surface wear caused by rigid contact and protecting the equipment's appearance. Furthermore, the anti-slip properties of the elastic material enhance the assembly stability of the tail cover and the equipment, reducing the risk of displacement during long-term use. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a rear-view perspective three-dimensional structural diagram of the outer shell of this utility model;

[0015] Figure 3 This is a rear sectional view of the outer casing of this utility model.

[0016] Figure 4 This is an exploded view of the structure of this utility model;

[0017] Figure 5 for Figure 4 Enlarged structural diagram of region A in the middle;

[0018] Figure 6 This is a rear sectional view of the inner cover of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Arc-shaped airflow channel; 3. Angled heat dissipation hole; 4. Base; 5. Side threaded hole; 6. First threaded hole; 7. Second threaded hole; 8. Fixing bar; 9. Fixing hole; 10. Load-bearing mesh cover; 11. Middle layer soft pad; 12. Inner layer cover; 13. Rubber layer; 14. Connecting bar; 15. Mounting hole; 16. Buckle; 17. Dustproof mesh; 18. Scratch-resistant coating; 19. Clip groove; 20. Dustproof cover; 21. Fastening buckle. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Please see the appendix Figure 1 - Appendix Figure 6This utility model provides an embodiment of a thermoformed tail cover, comprising an outer shell 1, with arc-shaped flow channels 2 on both outer walls of the outer shell 1, and oblique heat dissipation holes 3 on both outer walls of the outer shell 1, the oblique heat dissipation holes 3 being located below the arc-shaped flow channels 2. A base 4 is fixedly connected to the bottom of the outer shell 1, and an anti-scratch coating 18 is provided on the outer surface of the outer shell 1; side threaded holes 5 are provided on both upper surfaces of the base 4, and first threaded holes 6 and second threaded holes 6 are provided on the upper surfaces of the base 4 around its perimeter. The threaded hole 7 and the side threaded hole 5 enable lateral fixation of the tail cover. The first threaded hole 6 and the second threaded hole 7 are adapted to different bolts, firmly connecting the tail cover to the equipment and preventing vibration and displacement. Fixing rods 8 are fixedly connected to the inner walls of both sides of the outer casing 1. Fixing holes 9 are provided on the upper surface of the fixing rods 8. A dustproof net 17 is installed at the bottom of the outer casing 1, and connecting rods 14 are fixedly connected to both sides of the dustproof net 17. The fixing rods 8 are used for installing the dustproof net 17, which intercepts dust. The connecting rods 14 cooperate with the fixing rods 8 to fix the dustproof net. Dust screen 17; The upper surface of the connecting rod 14 has mounting holes 15, and a pull buckle 16 is snapped into the mounting hole 15. The pull buckle 16 is snapped into the fixing hole 9. The pull buckle 16 snaps into the mounting hole 15 and the fixing hole 9, quickly fixing the dust screen 17 without tools, making it easy to disassemble and wash; A load-bearing mesh cover 10 is installed inside the outer casing 1. A middle layer soft pad 11 is fixedly connected to the bottom outer surface of the load-bearing mesh cover 10. The load-bearing mesh cover 10 disperses impact to prevent the outer casing from breaking, and the middle layer soft pad 11 absorbs impact and protects the tail of the equipment; the bottom outer surface of the middle layer soft pad 11... An inner cover 12 is fixedly connected to the surface, and a rubber layer 13 is provided on the inner cover 12. The inner cover 12 isolates the soft pad from the equipment, and the rubber layer 13 buffers vibration, prevents scratches on the equipment, and also prevents slipping. A buckle groove 19 is opened on the outer wall of the end of the outer cover 1, and a dust cover 20 is provided on the outer wall of the end of the outer cover 1. A fastening buckle 21 is fixedly connected to one side of the outer wall of the dust cover 20, and the fastening buckle 21 is engaged in the buckle groove 19. The buckle groove 19 and the fastening buckle 21 cooperate to quickly install and remove the dust cover 20, and prevent dust from entering the interface when the equipment is idle.

[0022] Working Principle: Using this utility model, the basic assembly of the tail cover and the tail of the equipment is first completed through the base 4. The side threaded holes 5 on the upper surfaces of both sides of the base 4 can be adapted to the lateral fixing requirements of the tail of the equipment. The tail cover is laterally limited by bolts inserted into the side threaded holes 5. At the same time, the first threaded holes 6 and the second threaded holes 7 on the upper surfaces of the base 4 can be selected according to the position of the preset mounting holes 15 at the tail of the equipment. The corresponding bolts can be inserted into the first threaded holes 6 or the second threaded holes 7 to achieve multi-dimensional fastening between the tail cover and the tail of the equipment, so as to prevent the tail cover from shifting or shaking during the operation of the equipment. When installing the dustproof net 17 on the base 4 and the bottom of the outer shell 1, the connecting rods 14 fixedly connected to both sides of the dustproof net 17 are first fixed to the inner walls of both sides of the outer shell 1. Align the connecting fixing rods 8, then snap the buckle 16 into the mounting hole 15 on the upper surface of the connecting rod 14. Next, push the buckle 16 so that its other end engages with the fixing hole 9 on the upper surface of the fixing rod 8. Through the snap-fit ​​between the buckle 16 and the fixing hole 9, the dustproof net 17 is quickly fixed. This assembly method requires no tools, and the dustproof net 17 can be removed for cleaning by disassembling the buckle 16, balancing assembly efficiency and ease of maintenance. When the equipment is idle and the tail interface needs to be sealed, align the fastening buckle 21 fixed to one side of the outer wall of the dust cover 20 with the snap-fit ​​groove 19 on the outer wall of the end of the outer shell 1, and apply slight pressure to make the fastening buckle 21 elastically snap into the snap-fit ​​groove 19, thus securing the dust cover 20 to the outer shell. The detachable connection of cover 1 forms a closed protection for the tail interface of the equipment. When the equipment needs to be used, simply pull the dust cover 20 outward to release the fastener 21 from the buckle slot 19, and the dust cover 20 can be quickly removed without affecting the normal use of the equipment interface. As the outermost structure of the tail cover, the outer shell cover 1 is in direct contact with the external environment and plays a primary protective role. Its vacuum-formed shell structure can prevent foreign objects from entering the tail of the equipment, and at the same time resist minor bumps during daily use. In addition, the anti-scratch coating 18 on the outer surface of the outer shell cover 1 can enhance the wear resistance of the outer shell cover 1 surface, prevent the outer shell cover 1 from being scratched by friction, ensure the integrity of the appearance, and prevent scratches from damaging the shell's sealing performance, further strengthening the outer layer protection effect. The bearing inside the outer shell cover 1 is designed to prevent scratches from damaging the shell's sealing performance. The load-bearing mesh cover 10 is the core load-bearing structure of the tail cover. Its mesh-like reinforcement design can evenly distribute external impact loads throughout the entire load-bearing mesh cover 10, avoiding localized stress concentration that could lead to breakage of the outer casing 1 or the tail of the equipment. Simultaneously, the middle layer soft pad 11, fixedly connected to the bottom outer surface of the load-bearing mesh cover 10, can absorb the impact energy transmitted by the mesh cover 10 through its own elastic deformation, converting hard impacts into flexible buffering. This prevents impact loads from being directly transmitted to the interfaces, cables, or internal components at the tail of the equipment, achieving a seamless mechanical protection connection between load-bearing and buffering. The inner layer cover 12, fixedly connected to the bottom outer surface of the middle layer soft pad 11, serves as an inner structure close to the tail of the equipment, further isolating the middle layer soft pad 11 from the tail of the equipment and preventing deformation of the soft pad after long-term use from affecting equipment compatibility.Furthermore, the rubber layer 13 on the inner cover 12 can directly contact the surface of the equipment tail and the edge of the interface. The elastic properties of the rubber layer 13 can buffer the vibration during equipment operation, avoiding paint peeling or shell scratches caused by rigid friction between the inner cover 12 and the equipment tail. At the same time, the anti-slip properties of the rubber layer 13 can enhance the tightness of the fit between the inner cover 12 and the equipment tail, further improving the overall assembly stability of the tail cover. When the equipment generates heat during operation and transfers it to the tail, the heat first diffuses into the internal space of the outer cover 1. Then, under the natural upward action of the hot airflow, it forms a directional flow channel along the arc-shaped guide grooves 2 opened on both sides of the outer wall of the outer cover 1. The curved surface design of the arc-shaped guide grooves 2 can guide the hot airflow upward and outward along the groove path. At the same time, the oblique heat dissipation holes 3 on both sides of the outer wall of the outer cover 1, located below the arc-shaped guide grooves 2, can introduce external cold air into the interior of the outer cover 1, which interacts with the inner... The hot airflow forms convection, accelerating heat exchange. The exhaust of hot air through the arc-shaped guide channel 2 and the entry of cold air through the oblique heat dissipation holes 3 work together to achieve efficient heat dissipation at the equipment's tail end, preventing heat accumulation and aging of internal components. During the airflow circulation process, the dustproof net 17 plays a primary dustproof role. Before entering the outer casing 1 through the oblique heat dissipation holes 3, external cold air must first pass through the dustproof net 17 at the bottom of the outer casing 1. The mesh structure of the dustproof net 17 can intercept dust and particulate impurities in the air, preventing them from entering the outer casing 1 with the airflow and adhering to the load-bearing mesh cover 10, the middle soft pad 11, or the equipment tail interface. Simultaneously, the dustproof cover 20, installed when not in use, can form a sealed protection for the interface area at the end of the outer casing 1, preventing dust and moisture from directly falling into the equipment tail interface. Together with the dustproof net 17, this forms a graded protection system of airflow dust prevention and interface sealing dust prevention, comprehensively ensuring the cleanliness of the equipment tail end.

[0023] 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.

[0024] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tail cover with a vacuum-formed structure, comprising an outer shell cover (1), characterized in that: Arc-shaped guide grooves (2) are provided on both sides of the outer wall of the outer casing (1), and oblique heat dissipation holes (3) are provided on both sides of the outer wall of the outer casing (1). The oblique heat dissipation holes (3) are located below the arc-shaped guide grooves (2). A base (4) is fixedly connected to the bottom of the outer casing (1), and an anti-scratch coating (18) is provided on the outer surface of the outer casing (1).

2. The tail cover with a vacuum-formed structure according to claim 1, characterized in that: The upper surfaces of both sides of the base (4) are provided with side threaded holes (5), and the upper surfaces of the four sides of the base (4) are provided with first threaded holes (6) and second threaded holes (7).

3. The tail cover with a vacuum-formed structure according to claim 2, characterized in that: The inner walls of both sides of the outer casing (1) are fixedly connected with fixing bars (8), and fixing holes (9) are opened on the upper surface of the fixing bars (8). A dustproof net (17) is provided at the bottom of the outer casing (1), and connecting bars (14) are fixedly connected to both sides of the dustproof net (17).

4. The tail cover with a vacuum-formed structure according to claim 3, characterized in that: The upper surface of the connecting bar (14) is provided with a mounting hole (15), and a buckle (16) is snapped into the mounting hole (15). The buckle (16) is snapped into the fixing hole (9).

5. The tail cover with a vacuum-formed structure according to claim 1, characterized in that: The outer casing (1) is provided with a load-bearing mesh cover (10), and a middle layer soft pad (11) is fixedly connected to the bottom outer surface of the load-bearing mesh cover (10).

6. The tail cover with a vacuum-formed structure according to claim 5, characterized in that: The bottom outer surface of the middle layer cushion (11) is fixedly connected to the inner layer cover (12), and a rubber layer (13) is provided on the inner layer cover (12).

7. The tail cover with a vacuum-formed structure according to claim 1, characterized in that: The outer wall of the outer casing (1) is provided with a snap-fit ​​groove (19), and a dust cover (20) is provided on the outer wall of the outer casing (1). A fastener (21) is fixedly connected to one side of the outer wall of the dust cover (20), and the fastener (21) is snapped into the snap-fit ​​groove (19).

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