Wireless earphone plastic shell
The wireless earphone shell, featuring Velcro adhesion and a rotating sleeve design, solves the problem of headphones slipping off during vigorous exercise, achieving a secure fit and convenient repair.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-10
AI Technical Summary
Existing wireless headphones tend to slip off during vigorous exercise, and traditional headbands are not secure enough, affecting the user experience.
Featuring a Velcro adhesive structure and a rotating sleeve design, combined with the sliding connection of the strap and D-ring, it is fixed to the chin by Velcro and securely worn by the rotating sleeve and the rotating structure of the horizontal axis; the earphone shell is made of polycarbonate with a snap-fit structure for easy maintenance.
To prevent the headphones from slipping off during exercise, improve wearing stability, and facilitate headphone repair and maintenance.
Smart Images

Figure CN223987158U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wireless earphone technology, specifically relating to a plastic shell for wireless earphones. Background Technology
[0002] Wireless headphones, also known as Bluetooth headphones or cordless headphones, are headphones that connect to audio devices (such as smartphones, tablets, computers, etc.) via Bluetooth or other wireless technologies. They free users from the constraints of traditional wired headphones, providing a more free and convenient audio experience. Wireless headphones include true wireless headphones, over-ear wireless headphones, and neckband wireless headphones.
[0003] The plastic shell of wireless earphones is a crucial component of their design, affecting not only their appearance and feel but also their durability, sound quality, and user comfort. Commonly used plastic materials for wireless earphone shells include PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene copolymer), and PC / ABS alloys. These materials are characterized by high strength, high transparency, good heat resistance, good flowability, excellent overall performance, and affordability.
[0004] The existing plastic casings have the following problems during use:
[0005] Most headphones on the market today are secured with a headband to ensure a snug fit. However, this traditional method can be unstable in certain situations, especially during vigorous exercise, where the headphones can easily slip off due to head movement or sweat, thus affecting the user experience. Utility Model Content
[0006] (1) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, the purpose of this invention is to provide a plastic shell for wireless headphones. This shell aims to solve the problem that existing headphones are primarily secured by a headband to ensure a close fit to the wearer's head. However, this traditional securing method is not stable enough in certain situations, especially during vigorous exercise, where the headphones can easily slip off due to head movement or sweat, thus affecting the user experience.
[0008] (2) Technical solution
[0009] To solve the above-mentioned technical problems, this utility model provides a plastic shell for wireless earphones, which includes a headband and earphone shells. The two ends of the headband are respectively connected to the earphone shells. A horizontal shaft is connected to the outer side of the two earphone shells. A rotating sleeve is fitted onto the surface of the horizontal shaft. A strap is connected to the surface of the rotating sleeve. A connecting strap is connected to the surface of another rotating sleeve. A first Velcro surface is connected to the surface of the strap. A D-ring is connected to the end of the connecting strap. The strap passes through the inside of the D-ring. A fixing piece is connected to the surface of the headband. A Velcro pin surface is connected to the inner side of the fixing piece. A second Velcro surface is connected to the surface of the headband.
[0010] When using the plastic shell of this technical solution, the user can first pull the fixed cloth to separate the Velcro pin side from the first Velcro loop side when wearing the wireless earphone. Then, pull the strap to put it on the chin. After that, the user can pull the strap away from the rotating sleeve. When the strap is under tension, it can slide inside the D-ring, so that the strap can be tightened at the wearer's chin.
[0011] Preferably, the rotating sleeve and the horizontal shaft form a rotating structure, and pulling the strap causes the rotating sleeve to rotate on the surface of the horizontal shaft, and then the strap is put on the chin.
[0012] Furthermore, the strap and the D-ring are connected by a sliding connection. When the strap is under tension, it can slide inside the D-ring, thus tightening the strap around the wearer's chin.
[0013] Furthermore, the hook and loop fastener pin surface and the second hook and loop fastener loop surface form an adhesive structure, and the hook and loop fastener pin surface and the first hook and loop fastener loop surface form an adhesive structure. The adhesion between the hook and loop fastener pin surface and the first hook and loop fastener loop surface can fix the position of the strap, and the adhesion between the hook and loop fastener pin surface and the second hook and loop fastener loop surface can fix the position of the strap.
[0014] Furthermore, the earphone shell includes a first shell, a second shell, a locking hole, a locking block, and a rubber ring. The second shell is fitted onto one side of the first shell, the locking hole is connected to the surface of the second shell, the rubber ring is connected to the inner wall of the second shell, and the locking block is connected to the side surface of the first shell.
[0015] Furthermore, the first and second outer shells are slidably connected, the locking block is made of polycarbonate, and the locking block and the locking hole form an engaging structure, which can connect the first and second outer shells.
[0016] (3) Beneficial effects
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] In this invention, when a user wears the wireless earphone, they can first pull the fixed cloth to separate the pin side of the Velcro from the loop side of the first Velcro. Then, they can pull the strap to drive the rotating sleeve to rotate on the surface of the horizontal axis. After that, they can put the strap on their chin. After that, they can pull the end of the strap away from the rotating sleeve. When the strap is under tension, it can slide inside the D-ring. This can tighten the strap on the wearer's chin and prevent it from slipping off during exercise.
[0019] In this invention, when the earphone needs repair, the locking block can be squeezed first. The locking block will bend when squeezed. When the end of the locking block moves to the outside of the locking hole, the second shell can be pulled and removed, thereby facilitating the repair of the earphone and improving the convenience of earphone repair. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the main structure of one specific embodiment of the device of this utility model;
[0021] Figure 2 A schematic diagram of the earphone shell structure according to a specific embodiment of the present invention;
[0022] Figure 3 An exploded view of the strap connection structure of one specific embodiment of the device of this utility model;
[0023] Figure 4 This is a schematic diagram of the unfolded structure of one specific embodiment of the device of this utility model;
[0024] Figure 5 This is a schematic diagram of the connecting strip connection structure of one specific embodiment of the device of this utility model;
[0025] Figure 6 This is a schematic diagram of the second outer shell structure of a specific embodiment of the device of this utility model;
[0026] Figure 7 This is an exploded view of the outer shell connection structure of a specific embodiment of the device of this utility model.
[0027] The markings in the attached diagram are as follows: 1. Headband; 2. Earphone shell; 201. First shell; 202. Second shell; 203. Snap-in hole; 204. Snap-in block; 205. Rubber ring; 3. Horizontal axis; 4. Rotating sleeve; 5. Strap; 6. Connecting strap; 7. First Velcro loop side; 8. D-ring; 9. Fixing fabric piece; 10. Velcro pin side; 11. Second Velcro loop side. Detailed Implementation
[0028] This specific embodiment is a plastic shell for a wireless earphone, and its structural schematic diagram is shown below. Figure 1-7As shown, the plastic shell includes a headband 1 and an earphone shell 2. The two ends of the headband 1 are respectively connected to the earphone shell 2. The outer sides of the two earphone shells 2 are connected to a horizontal shaft 3. A rotating sleeve 4 is fitted onto the surface of the horizontal shaft 3. A strap 5 is connected to the surface of the rotating sleeve 4. A connecting strap 6 is connected to the surface of the other rotating sleeve 4. A first Velcro surface 7 is connected to the surface of the strap 5. A D-ring buckle 8 is connected to the end of the connecting strap 6. The strap 5 passes through the inside of the D-ring buckle 8. A fixing piece 9 is connected to the surface of the headband 1. A Velcro pin surface 10 is connected to the inner side of the fixing piece 9. A second Velcro surface 11 is connected to the surface of the headband 1.
[0029] Among them, the rotating sleeve 4 and the horizontal shaft 3 form a rotating structure, the strap 5 and the D-ring buckle 8 are slidably connected, the hook and loop fastener 10 and the second hook and loop fastener 11 form an adhesive structure, and the hook and loop fastener 10 and the first hook and loop fastener 7 form an adhesive structure.
[0030] In addition, the earphone shell 2 includes a first shell 201, a second shell 202, a locking hole 203, a locking block 204, and a rubber ring 205. The second shell 202 is sleeved on one side of the first shell 201. The locking hole 203 is connected to the surface of the second shell 202. The rubber ring 205 is connected to the inner wall of the second shell 202. The locking block 204 is connected to the side surface of the first shell 201. The first shell 201 and the second shell 202 are slidably connected. The locking block 204 is made of polycarbonate material. The locking block 204 and the locking hole 203 form a locking structure.
[0031] Working principle: When using the device of this technical solution, the user can first pull the fixed cloth piece 9 to separate the Velcro pin surface 10 from the first Velcro loop surface 7. Then, the wireless earphone can be put on through the headband 1. Next, pull the strap 5 to drive the rotating sleeve 4 to rotate on the surface of the horizontal axis 3. Then, put the strap 5 on the chin. After completion, the end of the strap 5 away from the rotating sleeve 4 can be pulled. When the strap 5 is under tension, it can slide inside the D-ring 8, so that the strap 5 can be tightened at the wearer's chin.
[0032] When the headphones need to be repaired, the locking block 204 can be squeezed first. The locking block 204 will bend when squeezed. When the end of the locking block 204 moves to the outside of the locking hole 203, the second outer shell 202 can be pulled and removed, so that the headphones can be repaired.
[0033] All technical features in this embodiment can be freely combined according to actual needs.
[0034] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A plastic housing for a wireless earphone, the plastic housing comprising a headband (1) and an earphone housing (2), characterized in that, The headband (1) is connected with earphone housings (2) at both ends, the outer sides of the two earphone housings (2) are connected with horizontal shafts (3), the surfaces of the horizontal shafts (3) are sleeved with rotating sleeves (4), the surfaces of the rotating sleeves (4) are connected with belts (5), the surfaces of the rotating sleeves (4) are connected with connecting belts (6), the surface of the belt (5) is connected with a first Velcro (7), the ends of the connecting belt (6) are connected with bow buckles (8), the belt (5) penetrates through the inside of the bow buckle (8), the surface of the headband (1) is connected with a fixed cloth piece (9), the inner side of the fixed cloth piece (9) is connected with a Velcro needle surface (10), and the surface of the headband (1) is connected with a second Velcro (11).
2. A plastic housing for a wireless earphone according to claim 1, wherein The rotating sleeve (4) and the horizontal shaft (3) form a rotating structure.
3. A plastic housing for a wireless earphone according to claim 2, wherein The belt (5) and the bow buckle (8) are slidingly connected.
4. A plastic housing for a wireless earpiece according to claim 3, wherein, The Velcro needle surface (10) and the second Velcro (11) form an adhesive structure, and the Velcro needle surface (10) and the first Velcro (7) form an adhesive structure.
5. The plastic housing for a wireless earphone of claim 1, wherein, The earphone housing (2) comprises a first housing (201), a second housing (202), a clamping hole (203), a clamping block (204) and a rubber ring (205), one side of the first housing (201) is sleeved with the second housing (202), the surface of the second housing (202) is connected with the clamping hole (203), the inner wall of the second housing (202) is connected with the rubber ring (205), and the side surface of the first housing (201) is connected with the clamping block (204).
6. A plastic housing for a wireless earpiece according to claim 5, wherein, The first housing (201) and the second housing (202) are slidingly connected.
7. A plastic housing for a wireless earpiece according to claim 6, wherein, The clamping block (204) is made of polycarbonate material, and the clamping block (204) and the clamping hole (203) form a clamping structure.