CN108712701A - A kind of telescopic earphone - Google Patents

Abstract

The invention discloses a telescopic earphone, which comprises an earphone main body, an earphone cable, an earphone plug and a telescoping mechanism. The telescoping mechanism includes an inner ratchet, a ratchet, a shell, a rotating shaft and a disk; the rotating disk is rotatably connected to the rotating shaft; The middle part of the turn is wound with an earphone wire; one end of the earphone wire passes through the upper part of the housing to connect to the earphone main body, and the other end passes through the lower part of the housing to connect to the earphone plug; one side of the turntable is provided with a spring; One end of the spring spring is fixed on the rotating shaft, and the other end is fixed on the left end surface of the turntable; the inner ratchet is fixed on the other side of the turntable and is concentric with the turntable; The ratchet in the ratchet wheel is fixed with a pull rod at the center of the disc; the pull rod is covered with a pressing spring; one end of the pressing spring is fixed at the center of the disc; the other end is fixed on the housing. It is simple and convenient for users to store the earphones, which solves the problem of knotted and entangled earphone cables that are too long.

Description

a telescopic earphone

technical field

The invention relates to the field of earphone stretching, in particular to a stretchable earphone.

Background technique:

With the popularization of electronic equipment, more and more people use earphones. For earphones in daily use, due to the long earphone wires used, the problem of earphone wire winding often occurs. Some are self-winding, and some are multiple earphones. Life is inconvenient. The retractable earphones currently on the market have complex structures and large volumes, which are inconvenient to carry in storage boxes.

Contents of the invention

The object of the present invention is to provide a retractable earphone to solve the above-mentioned defects in the prior art.

A retractable earphone, comprising an earphone body, an earphone cable, an earphone plug and a telescopic mechanism, is characterized in that: the telescopic mechanism includes an inner ratchet, a pawl, a housing, a rotating shaft and a disk; one end of the rotating shaft is fixed on On the inner wall of the left side of the housing; the turntable is rotatably connected to the shaft; the middle part of the turntable is wound with an earphone wire; one end of the earphone wire passes through the upper part of the housing to connect to the earphone main body, and the other end passes through the lower part of the housing Connect the earphone plug; one side of the turntable is provided with a spring spring; one end of the spring spring is fixed on the rotating shaft, and the other end is fixed on the left end surface of the turntable; the inner ratchet is fixed on the other side of the turntable and is concentric with the turntable ; The internal ratchet is provided with a disc; the disc is provided with a cylinder; the pawl is rotatably connected to the cylinder to block the ratchet in the internal ratchet; between the pawl and the cylinder A torsion spring is connected, and the center of the disc is fixed on a pull rod; the right end of the pull rod passes through the housing and is fixedly connected with a handle; the pull rod is covered with a pressing spring; One end is fixed on the center of the disc; the other end is fixed on the shell.

Preferably, a limit plate 1 and a limit plate 2 are arranged on the inner wall of the housing; the limit plate 1 abuts against the left end surface of the turntable; the limit plate 2 abuts against the right end surface of the turntable.

Preferably, a part of the earphone wire connected to the earphone plug is fixed in the casing.

Preferably, earphone wire holes are respectively provided on the upper part and the lower part of the housing, and anti-slip sleeves are provided in the earphone wire holes.

The invention has the advantages of simple structure, convenient for users to store earphones, and solves the problem of knotted and entangled earphone wires that are too long.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is an engagement diagram of the inner ratchet and the ratchet teeth of the present invention.

Fig. 3 is an appearance diagram of the present invention.

Among them: 1—earphone body, 2—earphone cable, 3—earphone plug, 4—pull rod, 5—top pressure spring, 6—handle, 7—turntable, 8—rotating shaft, 91—limit plate 1, 92—limit Plate two, 10-spring spring, 11-housing, 12-disc, 13-pawl, 14-cylinder, 15-inner ratchet.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

As shown in Fig. 1, Fig. 2 and Fig. 3, an earphone retracting device includes an earphone main body 1, an earphone cable 2, an earphone plug 3 and a telescopic mechanism, and the telescopic mechanism includes an inner ratchet 15, a ratchet 13, and a housing 11 , a rotating shaft 8 and a disc 12; one end of the rotating shaft 8 is fixed on the left inner wall of the housing 11; the rotating disc 7 is connected to the rotating shaft 8 in rotation; the middle part of the rotating disc 7 is wound with an earphone wire 2; One end of the earphone wire 2 passes through the upper part of the housing 11 to connect to the earphone main body 1, and the other end passes through the lower part of the housing 11 to connect to the earphone plug 3; one side of the turntable 7 is provided with a spring spring 10; one end of the spring spring 10 is fixed on On the rotating shaft 8, the other end is fixed on the left end face of the turntable 7, and the spring spring 10 is used as a power drive mechanism; the inner ratchet 15 is fixed on the other side of the turntable 7 and is concentric with the turntable 7; the inner ratchet 15 is provided with a disc 12; the disc 12 is provided with a cylinder 14; the pawl 13 is rotatably connected to the cylinder 14, and clamps the ratchet in the inner ratchet 15; the pawl 13 and the A torsion spring is connected between the cylinders 14, and a pull rod 4 is fixed at the center of the disc 12; the right end of the pull rod 4 passes through the housing 11 and is fixedly connected with a handle 6; There is a pressure spring 5; one end of the pressure spring 5 is fixed at the center of the disc 7; the other end is fixed on the housing 11; the pressure spring 5 can reset the pulled out pawl.

It is worth noting that the first limit plate 91 and the second limit plate 92 are provided on the inner wall of the housing 11; the first limit plate 91 abuts against the left end surface of the turntable; the second limit plate 92 abuts against the right end surface of the turntable , the use of the limit plate is to ensure that the turntable 7 does not move axially during the movement.

In this embodiment, part of the earphone wires connected to the earphone plug 3 is fixed in the housing 11 .

In addition, the upper and lower parts of the housing 11 are respectively provided with earphone wire holes, and anti-slip sleeves are provided in the earphone wire holes, which can protect the earphone wire 2 from abrasion.

Working principle: When we need to use telescopic earphones, we pull out the earphone wire 2 connected to the earphone body 1, the earphone wire 2 drives the turntable 7 to rotate during the pulling process, and the spring spring 10 is compressed during the rotation of the turntable 7 , when the pulling is stopped, the ratchet 13 catches the ratchet of the inner ratchet 15 so that the earphone cable 2 is pulled to a suitable length and gets stuck. When we use up the earphone, when the handle 6 is pulled, the ratchet 13 is separated from the disc 12 Inner ratchet, at this time, the spring spring 10 releases energy to make the turntable 7 reversely rotate, and the earphone cable 2 is retracted. At this time, the handle 6 is released, the pressing spring 5 rebounds, and the ratchet 13 returns to the original position and blocks the ratchet. thorn ruler. Based on the above, the invention has a simple structure, is convenient for users to store earphones, and solves the problem of knotted and entangled earphone wires that are too long.

It can be known from common technical knowledge that the present invention can be realized through other embodiments without departing from its spirit or essential features. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are embraced by the present invention.

Claims (4)

1. A telescopic earphone, comprising earphone main body (1), earphone line (2), earphone plug (3) and telescopic mechanism, is characterized in that: described telescopic mechanism comprises inner ratchet (15), ratchet (13), Housing (11), rotating shaft (8) and disk (12); One end of described rotating shaft (8) is fixed on the left side inner wall of housing (11); ); the middle part of the turntable (7) is wound with an earphone wire (2); one end of the earphone wire (2) passes through the upper part of the housing (11) to connect to the earphone main body (1), and the other end passes through the housing (11) The bottom is connected to the earphone plug (3); one side of the turntable (7) is provided with a spring spring (10); one end of the spring spring (10) is fixed on the rotating shaft (8), and the other end is fixed on the turntable (7 ) on the left end face; the inner ratchet (15) is fixed on the other side of the turntable (7) and is concentric with the turntable (7); the inner ratchet (15) is provided with a disc (12); the The disc (12) is provided with a cylinder (14); the ratchet (13) is rotatably connected to the cylinder (14) to block the ratchet in the inner ratchet (15); the ratchet (13) and A torsion spring is connected between the cylinders (14), and a pull rod (4) is fixed at the center of the disc (12); the right end of the pull rod (4) passes through the housing (11) and is fixed A handle (6) is connected; the pull rod (4) is covered with a pressure spring (5); one end of the pressure spring (5) is fixed on the center of the disc (7); the other end is fixed on the housing (11 )superior. 2. A kind of retractable earphone according to claim 1, characterized in that: a limit plate one (91) and a limit plate two (92) are provided on the inner wall of the housing; the limit plate one ( 91) arrives at the left end face of rotating disk (7); Limit plate (92) two arrives at the right end face of rotating disk (7). 3. A retractable earphone according to claim 2, characterized in that: the part of the earphone wire (2) connected to the earphone plug (3) is fixed in the casing (11). 4. A retractable earphone according to claim 3, characterized in that: the upper part and the lower part of the casing (11) are respectively provided with earphone wire holes, and anti-slip sleeves are provided in the earphone wire holes.