Audio cable capable of preventing root breakage

Abstract

The utility model relates to an audio cable capable of preventing root fracture, comprising a wire harness body, the free end of the wire harness body is connected with an audio head, the wire harness body located at the root of the audio head is sleeved with a protective sleeve, the free end of the protective sleeve is internally provided with an internal threaded hole, and a reinforced coating body is screwed in the internal threaded hole. A groove is formed in the free end, located at the reinforcing wrapping body, of the protective sleeve, limiting inner protrusions are arranged on the two side faces of the groove, a rolling wheel is connected to the portion, located between the two limiting inner protrusions, of the protective sleeve in a rolling mode, tooth grooves are formed in the upper surfaces of the limiting inner protrusions, and shaft bodies are integrally arranged at the two ends of the rolling wheel. The audio wire harness has the advantages that the wire harness body is tightly pressed, the pulling force of the wiring position is reduced, the breakage of the wiring position is avoided, the connection firmness is enhanced, the service life of the audio wire is prolonged, and the audio wire harness is suitable for industrial production and has very high practicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of audio frequency line especially relates to an audio frequency line of preventing root breakage. BACKGROUND

[0002] Among the existing Chinese patent database, a patent with the name of a dustproof tensile audio frequency line is introduced, the application number is CN202020453448.X, and the application date is April 1, 2020. A dustproof tensile audio frequency line comprises an audio frequency line, an audio frequency line connector and a connector protective cover. The audio frequency line further comprises a braided layer, an outer sheath layer, a tensile layer, a wire and a filler layer. The braided layer is internally provided with an outer sheath layer. The outer sheath layer is internally provided with a tensile layer. The tensile layer is internally provided with a group of wires. The wires and the tensile layer are provided with a filler. The two wires are twisted with each other. The two ends of the audio frequency line are provided with audio frequency line connectors. The audio frequency line connector is provided with a connector protective cover. Compared with the prior art, the utility model strengthens the tensile performance of the audio frequency line, prevents wire breakage, and further provides dustproof protection for the audio frequency line connector when the audio frequency line is idle, thereby prolonging the service life of the audio frequency line.

[0003] The joint root of the audio frequency line is connected with the wire harness in the prior art. The joint root may be broken due to pulling during long-term use, which leads to the failure of the audio frequency line. Therefore, the present scheme aims to provide an audio frequency line capable of preventing root breakage. The cooperation of the protective sleeve and the reinforcing cover can effectively protect the root of the audio frequency line. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that the joint root of the audio frequency line is connected with the wire harness in the prior art. The joint root may be broken due to pulling during long-term use, which leads to the failure of the audio frequency line. In order to improve the shortcomings, the utility model provides an audio frequency line capable of preventing root breakage.

[0005] To achieve the above-mentioned purpose, the utility model is realized by the following technical scheme:

[0006] An audio frequency line capable of preventing root breakage comprises a wire harness body. The free end of the wire harness body is connected with an audio frequency head. A protective sleeve is sleeved on the wire harness body at the root of the audio frequency head. An internal thread hole is formed in the free end of the protective sleeve. A reinforcing cover is screwed in the internal thread hole. A groove is formed in the free end of the protective sleeve at the reinforcing cover. Limiting inner protrusions are arranged on the two sides of the groove. A roller is rotatably connected in the protective sleeve between the two limiting inner protrusions. A tooth groove is formed in the upper surface of the limiting inner protrusion, and the upper surface of the limiting inner protrusion is inclined downward. Shaft bodies are integrally arranged at the two ends of the roller. Tooth gears are integrally arranged on the outer circumferential surface of the shaft bodies and matched with the tooth groove. The lower end of the roller abuts against the outer surface of the reinforcing cover.

[0007] As a preferred scheme, the reinforcing cover body comprises a threaded section connected with the inner threaded hole and a covering section, the covering section comprises a flexible body in contact with the roller, and a limiting sleeve is integrally arranged on the inner surface of the flexible body and wrapped on the wire harness body.

[0008] As a preferred scheme, the limiting sleeve is arranged in an arc shape.

[0009] As a preferred scheme, a limiting body is integrally arranged in the groove at the free end of the protective sleeve, and the limiting body is used to avoid the roller from sliding out of the groove.

[0010] As a preferred scheme, the outer circumferential surface of the roller is provided with anti-skid patterns.

[0011] Compared with the prior art, the audio wire has the beneficial effects that: due to the arrangement of the protective sleeve, the pulling angle of the audio head and the wire harness body is avoided to be too large, the adjustable arrangement of the limiting sleeve in the reinforcing cover body facilitates the compression of the wire harness body, reduces the pulling force of the wiring, avoids the fracture of the wiring, enhances the firmness of the connection, improves the service life of the audio wire, and the device is suitable for industrial production and has strong practicability. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model.

[0013] Figure 2 It is Figure 1 It is a local enlarged view of A in the middle.

[0014] In the figure: 1 wire harness body, 2 audio head, 3 protective sleeve, 4 inner threaded hole, 5 reinforcing cover body, 501 threaded section, 502 covering section, 503 flexible body, 504 limiting sleeve, 6 groove, 7 limiting inner protrusion, 8 roller, 9 tooth groove, 10 shaft body, 11 limiting body. DETAILED DESCRIPTION

[0015] The technical scheme of the present application will be further described and illustrated in combination with the drawings and embodiments.

[0016] For example Figures 1-2As shown, it is an audio cable to prevent root fracture, including wire harness body 1, the free end of wire harness body 1 is connected with audio head 2, wire harness body 1 is sleeved with protective sleeve 3 at the root of audio head 2, the free end of protective sleeve 3 is provided with internal thread hole 4, the internal thread hole 4 is screwed with reinforcing cover 5, the free end of protective sleeve 3 at reinforcing cover 5 is provided with recess 6, the both sides of recess 6 are provided with limiting inner protrusion 7, the protective sleeve 3 between the both limiting inner protrusion 7 is connected with roller 8, the upper surface of limiting inner protrusion 7 is provided with gear slot 9, and the upper surface of limiting inner protrusion 7 is inclined downward, the both ends of roller 8 are integrally provided with shaft 10, the outer circumferential surface of shaft 10 is integrally provided with gear teeth matched with gear slot 9, and the lower end of roller 8 is in contact with the outer surface of reinforcing cover 5. The reinforcing cover 5 includes a threaded segment 501 connected with the internal thread hole 4 and a covering segment 502, the covering segment 502 includes a flexible body 503 in contact with the roller 8, and the inner surface of the flexible body 503 is integrally provided with a limiting sleeve 504 wrapped around the wire harness body 1. The limiting sleeve 504 is arc-shaped. The recess 6 at the free end of the protective sleeve 3 is integrally provided with a limiting body 11, which is used to prevent the roller 8 from sliding out of the recess 6. The outer circumferential surface of the roller 8 is provided with anti-slip patterns.

[0017] In the use process of the utility model, in order to guarantee the fit effect of protective sleeve 3 and the end face of audio head 2, the end face of protective sleeve 3 towards audio head 2 can be extended, and a thread is arranged on the outer surface of audio head 2, so that the extended part of protective sleeve 3 is screwed on audio head 2 until the end face of protective sleeve 3 is in contact with the connecting part of audio head 2 and wire harness body 1, thereby reducing the bending space of the connecting part of audio head 2 and wire harness body 1 to avoid fracture. In addition, by sliding the roller 8 along the inclined upper surface of the limiting inner protrusion 7, the distance between the lower dead point of the roller 8 and the axis of the wire harness body 1 can be adjusted. When the roller 8 rolls to the right, the flexible body 503 is pressed down, so that the limiting sleeve 504 is more tightly pressed on the wire harness body 1, the tension at the connection is reduced, the connection is more firm, and the service life of the audio cable is improved.

[0018] The utility model is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the utility model, those skilled in the art can make some substitutions and modifications to some technical features without creative labor, and these substitutions and modifications are within the protection scope of the utility model.

Claims

1. An audio cable against root break, comprising a cable bundle body (1), a free end of the cable bundle body (1) being connected with an audio head (2), characterized in that: The wire harness body (1) at the root of the audio head (2) is sleeved with a protective sleeve (3), a threaded hole (4) is formed in the free end of the protective sleeve (3), a reinforcing cover (5) is screwed in the threaded hole (4), a groove (6) is formed in the free end of the protective sleeve (3) at the reinforcing cover (5), limit inner protrusions (7) are arranged on the two sides of the groove (6), a roller (8) is rollingly connected in the protective sleeve (3) between the two limit inner protrusions (7), a gear groove (9) is formed in the upper surface of the limit inner protrusion (7), and the upper surface of the limit inner protrusion (7) is arranged downwardly and obliquely, shaft bodies (10) are integrally arranged at the two ends of the roller (8), gear teeth are integrally arranged on the outer circumferential surface of the shaft body (10) and matched with the gear groove (9), and the lower end of the roller (8) abuts against the outer surface of the reinforcing cover (5).

2. The audio cable of claim 1, wherein: The reinforcing cover (5) comprises a threaded section (501) connected with the threaded hole (4) and a covering section (502), the covering section (502) comprises a flexible body (503) in contact with the roller (8), and a limit sleeve (504) is integrally arranged on the inner surface of the flexible body (503) and wrapped on the wire harness body (1).

3. The audio cable of claim 2, wherein: The limit sleeve (504) is arranged in an arc shape.

4. The audio cable of claim 3, wherein: A limit body (11) is integrally arranged in the groove (6) at the free end of the protective sleeve (3), and the limit body (11) is used for preventing the roller (8) from sliding out of the groove (6).

5. An audio cable that prevents root failure according to any one of claims 1-4, characterized in that: Anti-skid patterns are arranged on the outer circumferential surface of the roller (8).

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