Wired earphone capable of automatically rewinding earphone cable

Abstract

The utility model relates to the technical field of wired earphones, in particular to a wired earphone capable of automatically rewinding an earphone cord, which comprises a protective shell, an earphone body is fixedly arranged in the protective shell, a rotating shaft is movably arranged in the protective shell, the earphone body is fixedly arranged in the rotating shaft, and the earphone cord is arranged in the rotating shaft. A rotating disc is fixedly connected to the outer wall of the rotating shaft, a spring is fixedly connected to the outer wall of the rotating shaft and located at the bottom of the rotating shaft, the outer wall of the spring is fixedly connected to the outer wall of the protective shell, and a locking assembly is installed between the protective shell and the rotating shaft; the locking assembly comprises a ratchet wheel, a pawl and a spring, and the ratchet wheel is fixedly connected to the outer wall of the rotating shaft and located at the bottom of the spring. According to the utility model, the problem that the buckle of the existing automatic rollback earphone is not firmly fixed is solved, the automatic take-up and stable locking of the earphone cable are realized, and the earphone has the advantages of convenience in storage, protection of internal parts, convenience in operation and the like.

Description

Technical Field

[0001] This utility model relates to the field of wired headphones, and more particularly to a wired headphone with an automatic rewinding headphone cable. Background Technology

[0002] With the continuous development of society, people's demand for audio devices is becoming increasingly diversified. As a common audio output device, wired headphones play an important role in daily life. With their advantages such as stable audio transmission, good sound quality, and no need for charging, they are widely used in scenarios such as listening to music, answering phone calls, studying, and working.

[0003] Chinese utility patent CN213403426U discloses a wired earphone with an automatic rewinding headphone cable. It includes a rewinding chamber, a spring, a latch, and earphones. The spring is located in the hollow mounting cavity inside the rewinding chamber and has a limit switch. The latch is pressably mounted on the rewinding chamber, and the latch and limit switch can be engaged or disengaged. The earphones include earplugs at the ends of the headphone cable and a plug at the ends of the headphone cable. The headphone cable is wound into the rewinding chamber by the spring, with the ends of the headphone cable fixed to the spring. The earplugs and plug are located on opposite sides of the rewinding chamber. The advantages of this utility model are: by adding a rewinding chamber between the plug and earplugs for storing the headphone cable, and using a spring to elastically rewind the headphone cable within the rewinding chamber, the earplugs can achieve the elastic pull-out or rewinding function like a tape measure. Its structure is simple, easy to use and assemble, reduces production costs, and its small size makes it easy to store, making it aesthetically pleasing and practical.

[0004] However, when the aforementioned patent is used, it uses a buckle to hold the spring in place to fix the length of the headphone cable. This fixing method is not reliable. During daily use, due to external pulling, vibration and other factors, the buckle is easy to loosen, causing the spring to be unable to stay stably fixed. The headphone cable may suddenly retract, which not only affects the user experience, but may also damage the headphones, and in some cases may even cause accidental injury to the user. Utility Model Content

[0005] In view of this, the present invention provides a wired earphone with an automatic rewinding headphone cable. The main technical problem to be solved is to address the issue that the existing wired earphones with automatic rewinding headphone cables are not securely fastened, which causes the headphone cable to suddenly retract during use, affecting use and damaging the earphones.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a wired earphone with automatic rewinding of the earphone cable, comprising a protective shell, an earphone body fixedly installed inside the protective shell, a rotating shaft movably installed inside the protective shell, the earphone body fixedly installed inside the rotating shaft, a turntable fixedly connected to the outer wall of the rotating shaft, a spring fixedly connected to the outer wall of the rotating shaft and located at the bottom of the rotating shaft, the outer wall of the spring fixedly connected to the outer wall of the protective shell, and a locking component installed between the protective shell and the rotating shaft;

[0007] The locking assembly includes a ratchet, a pawl, and a spring. The ratchet is fixedly connected to the outer wall of the rotating shaft and located at the bottom of the spring. The pawl is movably installed on the bottom of the inner wall of the protective shell. The ratchet and the pawl engage with each other. The spring is fixedly installed between the protective shell and the pawl.

[0008] By adopting the above technical solution, when the headphone body is pulled to rotate the rotating shaft, the ratchet rotates with the rotating shaft. If it is necessary to fix the length of the headphone cable at this time, the pawl will be engaged in the tooth groove of the ratchet under the action of the spring, preventing the rotating shaft from reversing, thereby fixing the headphone cable and achieving stable locking of the headphone cable winding state.

[0009] As a further description of the above technical solution: a slot is provided at the top of the rotating shaft, and the earphone body is fixedly installed inside the slot.

[0010] By adopting the above technical solution, the card slot can firmly fix the headphone body on the rotating shaft.

[0011] As a further description of the above technical solution: a protective cover is threaded onto the top of the protective shell, a transparent acrylic plate is fixedly mounted on the top of the protective cover, and anti-slip texture is provided on the outer wall of the protective cover.

[0012] By adopting the above technical solution, the protective cover can protect the internal parts of the protective shell, the transparent acrylic plate makes it easy to observe the internal structure, and the anti-slip texture increases the friction when holding the protective cover, making it easy to install and remove the protective cover.

[0013] As a further description of the above technical solution: the inner wall of the protective shell is provided with an installation groove, and a roller is movably installed inside the installation groove, and the outer wall of the turntable is in contact with the outer wall of the roller.

[0014] By adopting the above technical solution, the roller fits snugly against the turntable, providing auxiliary support and reducing friction when the turntable rotates, making the turntable drive the rotating shaft to rotate more smoothly.

[0015] As a further description of the above technical solution: a pawl is fixedly connected to the outer wall of the pawl, and the pawl is located on the outer wall of the protective shell.

[0016] By adopting the above technical solution, users can easily control the position of the pawl by moving the lever, thereby realizing the separation or engagement of the ratchet and the pawl.

[0017] As a further description of the above technical solution: the outer wall of the protective shell is provided with a slot, and the earphone body is located inside the slot.

[0018] By adopting the above technical solution, when the headphones are not in use, the headphone body can be stored in the slot, reducing the shaking of the headphone body and making it convenient to take out and put back the headphone body.

[0019] By employing the above technical solution, the wired earphone with automatic rewinding headphone cable of this utility model has at least the following beneficial effects:

[0020] 1. Compared with existing technologies, this type of wired headphone with automatic rewinding of the headphone cable is equipped with a spring, a rotating shaft, and a turntable. When the headphone body is pulled, the rotating shaft drives the turntable to rotate, and the spring undergoes elastic deformation to store energy. After the headphone body is released, the spring returns to its original shape, driving the rotating shaft and the turntable to rotate in the opposite direction, thus achieving the function of automatic cable winding. It can conveniently and quickly store the headphone cable, avoid tangling, improve the convenience of use, and is more neat and orderly than traditional headphones.

[0021] 2. Compared with the existing technology, this wired headphone with automatic rewinding of the headphone cable has a locking component. When the length of the headphone cable needs to be fixed, the spring pushes the pawl to engage with the tooth groove of the ratchet, preventing the rotating shaft from reversing and achieving an automatic locking function. Compared with the buckle fixing method, this locking method is more secure and reliable, effectively preventing the headphone cable from suddenly retracting during use, protecting the headphone from damage, and improving the user experience. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a wired earphone with an automatic rewinding earphone cable proposed in this utility model.

[0023] Figure 2 This is an enlarged structural schematic diagram of the protective shell in a wired earphone with an automatic rewinding headphone cable, as proposed in this utility model.

[0024] Figure 3 This is a cross-sectional structural diagram of a wired earphone with an automatic rewinding headphone cable proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the internal structure of a wired headphone component with an automatic rewinding headphone cable proposed in this utility model.

[0026] Figure 5 This is a schematic diagram of the internal structure of another set of parts for a wired earphone with an automatic rewinding earphone cable proposed in this utility model.

[0027] Figure 6 This is a schematic diagram of the locking component in a wired earphone with an automatic rewinding headphone cable, as proposed in this utility model.

[0028] Legend:

[0029] 1. Protective shell; 101. Slot; 2. Earphone body; 3. Protective cover; 301. Transparent acrylic sheet; 302. Anti-slip texture; 4. Rotating shaft; 401. Slot; 5. Turntable; 6. Spring; 7. Locking assembly; 701. Ratchet; 702. Pad; 703. Spring; 704. Toggle; 8. Mounting slot; 9. Roller. Detailed Implementation

[0030] Reference Figure 1-6 This utility model provides a wired earphone with an automatic rewinding headphone cable: It includes a protective shell 1, an earphone body 2 fixedly installed inside the protective shell 1, and a rotating shaft 4 movably installed inside the protective shell 1. The earphone body 2 is fixed inside the shaft, and its outer wall is connected to a turntable 5 and a spring 6. The spring 6 causes the earphone body 2 to wind up. The earphone body 2 is fixedly installed inside the rotating shaft 4, and the turntable 5 is fixedly connected to the outer wall of the rotating shaft 4. The turntable 5 rotates with the rotating shaft 4, causing the earphone cable to wind up or unwind. The spring 6 is fixedly connected to the outer wall of the rotating shaft 4 and located at the bottom of the rotating shaft 4. The spring 6 is the component that provides the winding power. When the earphone cable is pulled out, it undergoes elastic deformation to store energy. When released, it releases energy to drive the rotating shaft 4 to rotate, achieving automatic cable winding. The outer wall of the spring 6 is fixedly connected to the outer wall of the protective shell 1. The protective shell 1 and the rotating shaft 4 are connected... A locking component 7 is installed to fix the rotation state of the rotating shaft 4, thereby fixing the length of the headphone cable and ensuring that the headphone cable will not retract arbitrarily during use. The locking component 7 includes a ratchet 701, a pawl 702, and a spring 703. The ratchet 701 is fixedly connected to the outer wall of the rotating shaft 4 and located at the bottom of the spring 6. The ratchet 701 rotates with the rotating shaft 4, and its special tooth structure cooperates with the pawl 702 to achieve the locking function. The pawl 702 is movably installed at the bottom of the inner wall of the protective shell 1. The pawl 702 engages or disengages with the ratchet 701 under the action of the spring 703 to control the rotation of the rotating shaft 4. The ratchet 701 and the pawl 702 engage with each other. The spring 703 is fixedly installed between the protective shell 1 and the pawl 702. The spring 703 provides elasticity to the pawl 702, so that it can engage tightly with the ratchet 701 and ensure the stability of the lock.

[0031] The top of the rotating shaft 4 is provided with a slot 401, which is used to securely fix the headphone body 2 on the rotating shaft 4, ensuring that the headphone body 2 will not shake or fall off during use and winding. The headphone body 2 is fixedly installed inside the slot 401.

[0032] The protective cover 3 is threaded on the top of the protective shell 1. The protective cover 3 is used to protect the internal parts of the protective shell 1 and prevent dust and debris from entering. At the same time, the threaded installation method facilitates installation and disassembly. A transparent acrylic plate 301 is fixedly installed on the top of the protective cover 3. The transparent acrylic plate 301 makes it easy to observe the condition of the internal parts. The outer wall of the protective cover 3 has anti-slip texture 302, which increases the friction when holding the hand and makes it easier to operate.

[0033] The inner wall of the protective shell 1 is provided with an installation groove 8, and a roller 9 is movably installed inside the installation groove 8. The roller 9 is in contact with the outer wall of the turntable 5, and plays a role in auxiliary support and reducing friction when the turntable 5 rotates, so that the turntable 5 drives the rotating shaft 4 to rotate more smoothly and improves the stability of the winding structure. The outer wall of the turntable 5 and the outer wall of the roller 9 are in contact with each other.

[0034] A lever 704 is fixedly connected to the outer wall of the pawl 702. The lever 704 allows the user to operate the pawl 702 from outside the protective shell 1. By moving the lever 704, the separation or engagement of the pawl 702 and the ratchet 701 can be controlled. The lever 704 is located on the outer wall of the protective shell 1.

[0035] The outer wall of the protective shell 1 has a slot 101, which provides a space for the earphone body 2. When the earphone is not in use, it reduces the shaking of the earphone body 2 and makes it easy to take out and put back the earphone body 2, thus improving the convenience of use. The earphone body 2 is located inside the slot 101.

[0036] Working principle: When the headphone body 2 is needed, hold the headphone body 2 with your hand and pull it outward. At this time, the headphone body 2 drives the rotating shaft 4 to rotate, and the turntable 5 on the outer wall of the rotating shaft 4 rotates accordingly. At the same time, the spring 6 is stretched and undergoes elastic deformation and stores energy. When it is pulled to a suitable length, if it is necessary to fix the headphone cable, the spring 703 pushes the pawl 702 to engage with the tooth groove of the ratchet 701, preventing the rotating shaft 4 from reversing, thereby fixing the headphone cable at the current length.

[0037] When the headphone cord needs to be stored after use, move the lever 704 to separate the pawl 702 from the ratchet 701. At this time, the spring 6 returns to its original shape, releases the stored energy, and drives the rotating shaft 4 and the turntable 5 to rotate in opposite directions, so as to realize the automatic winding of the headphone cord and retract the headphone body 2 into the protective shell 1.

[0038] 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 wired earphone with an automatic rewinding headphone cable, comprising a protective shell (1), wherein an earphone body (2) is fixedly installed inside the protective shell (1), characterized in that: The protective shell (1) has a rotating shaft (4) movably installed inside. The earphone body (2) is fixedly installed inside the rotating shaft (4). A turntable (5) is fixedly connected to the outer wall of the rotating shaft (4). A spring (6) is fixedly connected to the outer wall of the rotating shaft (4) and located at the bottom of the rotating shaft (4). The outer wall of the spring (6) is fixedly connected to the outer wall of the protective shell (1). A locking component (7) is installed between the protective shell (1) and the rotating shaft (4). The locking assembly (7) includes a ratchet (701), a pawl (702), and a spring (703). The ratchet (701) is fixedly connected to the outer wall of the rotating shaft (4) and located at the bottom of the spring (6). The pawl (702) is movably installed on the bottom of the inner wall of the protective shell (1). The ratchet (701) and the pawl (702) engage with each other. The spring (703) is fixedly installed between the protective shell (1) and the pawl (702).

2. The wired earphone with automatic rewinding cable according to claim 1, characterized in that: The top of the rotating shaft (4) is provided with a slot (401), and the headphone body (2) is fixedly installed inside the slot (401).

3. The wired earphone with automatic rewinding cable according to claim 1, characterized in that: The protective shell (1) is threaded with a protective cover (3) on its top. A transparent acrylic plate (301) is fixedly installed on the top of the protective cover (3). The outer wall of the protective cover (3) is provided with anti-slip texture (302).

4. A wired earphone with an automatic rewinding headphone cable according to claim 1, characterized in that: The inner wall of the protective shell (1) is provided with an installation groove (8), and a roller (9) is movably installed inside the installation groove (8). The outer wall of the turntable (5) is in contact with the outer wall of the roller (9).

5. A wired earphone with an automatic rewinding headphone cable according to claim 1, characterized in that: A lever (704) is fixedly connected to the outer wall of the pawl (702), and the lever (704) is located on the outer wall of the protective shell (1).

6. A wired earphone with an automatic rewinding headphone cable according to claim 1, characterized in that: The outer wall of the protective shell (1) is provided with a slot (101), and the headphone body (2) is located inside the slot (101).

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