RCA audio plug

Abstract

The utility model provides an RCA audio plug, which comprises a plug body, a wiring cavity is formed in the plug body, the rear end of the wiring cavity is open, a cable can be inserted into the wiring cavity, and the side wall of the plug body is provided with a wiring window communicated with the wiring cavity; the head part of the plug body is provided with a first hooping part which can be inserted into a female plug and a metal insertion rod which can be inserted into a jack of the female plug; the tail part of the metal insertion rod is provided with a first wiring end which is used for wiring and faces the wiring window; and the first sleeve is cylindrical, is connected to the front end of the plug body through threads and can cover the wiring window, the inner wall of the first sleeve is provided with a first pressing surface, and the first pressing surface can be in contact with the outer wall of the first hooping part and enables the first hooping part to press the female plug so as to realize locking and fixing. The RCA audio plug is compact in structure, beautiful in appearance, high in connection strength, good in tensile strength, stable in signal transmission and good in tone quality.

Description

Technical Field

[0001] The utility model relates to a plug, in particular to an RCA audio plug. Background Art

[0002] The Lotus interface RCA head, commonly known as the Lotus cable, is a type of audio cable that is widely used in recording studios, stage audio, and video audio systems to achieve quick connection of various audio devices. Due to its structure, the RCA audio plug is connected to the female plug through the clamping structure at its front end. The clamping part is elastic and can clamp the outer wall of the female plug. In order to facilitate plugging and unplugging, the clamping amount of the clamping part is usually not too tight, which can easily cause the connection to become loose, especially after long-term use. It is very easy to fall off, affecting the connection. At the same time, it is easy to cause a false connection after loosening, which seriously affects the audio quality. In addition, the RCA connector in the prior art is usually connected by welding, which is inconvenient to connect and increases resistance. The resistance of the welding point will cause signal loss, which will not only weaken the signal, but also make the signal unstable, thereby generating noise and murmurs, affecting the performance of the sound quality. Utility Model Content

[0003] Technical problems to be solved

[0004] The technical problem to be solved by the utility model is to provide an RCA audio plug with a compact structure, convenient wiring, high connection strength and use reliability, and good use effect.

[0005] Technical solutions to the problem

[0006] The utility model provides an RCA audio plug, which includes:

[0007] The plug body 1 is cylindrical and has a wiring cavity 10 formed therein. The rear end of the wiring cavity 10 is open and can accommodate cable insertion. The side wall of the plug body 1 is provided with a wiring window connected to the wiring cavity 10. The head of the plug body 1 is provided with a first clamping portion 1a that can be inserted into the female plug and a metal rod 21 that can be inserted into the female plug. The tail of the metal rod 21 is provided with a first wiring terminal 22 for wiring and facing the wiring window.

[0008] The first sleeve 3 is cylindrical and is connected to the front end of the plug body 1 through a thread and can cover the wiring window. The inner wall of the first sleeve 3 is provided with a first clamping surface, which can contact the outer wall of the first clamping part 1a and press the female plug to achieve locking and fixation.

[0009] Furthermore, the rear end of the metal plug rod 21 extends into the wiring cavity 10 and forms the first wiring terminal 22. The end of the first wiring terminal 22 is provided with a first wire insertion hole 220 for inserting the wire. The side wall of the first wiring terminal 22 is threadedly connected with a first wire pressing bolt 221 for tightening the wire in the first wire insertion hole 220.

[0010] Furthermore, the plug body 1 is made of conductive metal, and a second wiring terminal 11 for wiring and grounding the plug body 1 is provided in the wiring cavity 10 .

[0011] Furthermore, the inner wall of the wiring cavity 10 is provided with a protruding structure and forms a second wiring terminal 11, the second wiring terminal 11 is located at the rear end of the first wiring terminal 22, and the second wiring terminal 11 is provided with a second wire insertion hole 111 for inserting the wire, and the side wall of the second wiring terminal 11 is threadedly connected with a second wire pressing bolt 112 for tightening the wire in the second wire insertion hole 111.

[0012] Furthermore, a wire groove 110 for accommodating the wires on the first wiring terminal 22 is formed on the side wall of the second wiring terminal 11 .

[0013] Furthermore, the rear end of the plug body 1 is provided with a rear pressing assembly capable of clamping the outer wall of the wire.

[0014] Furthermore, the rear clamping assembly includes a second sleeve 5 threadedly connected to the rear end of the plug body 1 and an inner sleeve 4 arranged in the second sleeve 5. The rear end of the plug body 1 contacts the tail of the inner sleeve 4 and provides axial support and limitation for it. The head of the inner sleeve 4 is provided with a second tightening portion 42 that can produce elastic deformation, and the inner wall of the second sleeve 5 is provided with a second clamping surface 50a. The second clamping surface 50a can contact the outer wall of the second tightening portion 42 and compress the outer wall of the wire.

[0015] Furthermore, the inner wall of the second tightening portion 42 is provided with an anti-slip groove 43 for contacting the outer wall of the wire and achieving anti-slip.

[0016] Furthermore, a limiting component for radial limiting is provided between the rear end portion of the plug body 1 and the tail portion of the inner jacket 4 .

[0017] Furthermore, the limiting component includes a limiting protrusion 15 provided at the rear end of the plug body 1 and a limiting groove 41 provided at the tail end of the inner jacket 4 and capable of receiving the limiting protrusion 15 .

[0018] Furthermore, the outer wall of the first sleeve and / or the second sleeve is provided with a color ring 51 for identification.

[0019] Furthermore, the second wire-pressing bolt 112 faces the wiring window.

[0020] Furthermore, the first wire-pressing bolt 221 faces the wiring window.

[0021] Beneficial effects

[0022] The utility model provides an RCA audio plug with a first sleeve, which enables the first clamping part at the front end of the plug to clamp the outer wall of the female plug to achieve locking and fixation, thereby preventing the plug from falling off due to accidental pulling, improving the reliability of use, and at the same time, avoiding poor contact caused by loose connectors, ensuring stable contact, reducing interference in signal transmission, and improving sound quality. A wiring window is provided to expose the internal wiring terminals, making it easier for the operator to connect the wires, ensuring stable wiring, and reducing noise caused by poor wiring. Cold-pressed wiring is adopted to improve the reliability and conductivity of the connection, reduce resistance, improve sound quality, and facilitate assembly and disassembly. and replacement; a rear clamping component is set to clamp and fix the cable, thereby improving the connection strength between the plug and the cable, avoiding separation or loose connection between the two caused by pulling, greatly improving the reliability and stability of use, and having a good use effect; a color ring structure is set on the side wall to facilitate users to quickly identify, thereby realizing fast and accurate wiring operations, and having strong practicality; in addition, the design of the color ring structure can also be customized according to different audio cable types to meet diverse usage needs; the utility model RCA audio plug has a compact structure, beautiful appearance, high connection strength, good tensile strength, stable signal transmission, and good sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the RCA audio plug of the utility model;

[0024] Figure 2 This is a schematic structural diagram of the RCA audio plug of the utility model from another angle;

[0025] Figure 3 This is a cross-sectional view of the RCA audio plug of the present invention;

[0026] Figure 4 This is a schematic diagram of the exploded structure of the RCA audio plug of the utility model;

[0027] Figure 5 This is a cross-sectional view of the RCA audio plug of the present invention;

[0028] Figure 6 This is a schematic structural diagram of the inner jacket of the RCA audio plug of the present invention;

[0029] Figure 7 This is a front view of the inner jacket of the RCA audio plug of the present invention;

[0030] Figure 8This is a cross-sectional view of the inner jacket of the RCA audio plug of the present invention;

[0031] Figure 9 This is a schematic structural diagram of the second sleeve of the RCA audio plug of the utility model;

[0032] Figure 10 This is a cross-sectional view of the second sleeve of the RCA audio plug of the present invention. DETAILED DESCRIPTION

[0033] The following describes the embodiments of the present utility model in detail with reference to the accompanying drawings.

[0034] See Figures 1-10 The utility model provides an RCA audio plug, which includes a plug body 1 and a first sleeve 3.

[0035] The plug body 1 is a main body, which is cylindrical in shape. The plug body 1 is a cylindrical structure with an installation cavity structure formed inside. That is, both ends are open. An insulating seat 23 is provided at the front end of the installation cavity. The insulating seat 23 is made of insulating material. A metal rod 2 is provided at the center of the insulating seat 23. The metal rod 2 is coaxial with the plug body 1, and its head extends outside the plug body 1 to form a metal plug 21. As an electrical connection end, it can be inserted into the socket of the female plug and contact with the metal contact in the socket to achieve electrical connection. The metal plug 21 and the plug body 1 are insulated from each other; located at the insulating The mounting cavity at the rear end of the seat 23 forms a wiring cavity 10, which is mainly used for wiring; the rear end of the wiring cavity 10 is open, that is, it penetrates backward to the outside of the plug body 1, and it can accommodate the cable to be inserted into the wiring cavity from the back to the front. A first clamping portion 1a is provided at the head of the plug body 1. Specifically, the front end of the plug body 1 is arc-shaped, that is, the diameter becomes smaller and is arc-shaped, and a plurality of strip grooves are provided on the front side wall. The front end of the strip groove penetrates to the outside of the plug body 1, dividing the end into multiple clamping structures, which can produce elastic deformation. When it is inserted into the female plug, it can produce a slight outward deformation, thereby having a certain clamping force on the female plug. At the same time, an opening is provided on the side wall of the plug body 1, which is connected to the wiring cavity 10 to form a wiring window for wiring operation. In order to facilitate the wiring operation, the central angle formed between the two ends of the wiring window and the axis of the plug body 1 is about 180 degrees, which can fully expose the wiring terminal and facilitate wiring; the tail of the metal rod body 2 is provided with a first wiring terminal 22, and the first clamping portion 1a is used for wiring, which faces the wiring window; specifically, the rear end of the metal plug rod 21 extends into the wiring cavity 10 to form the first wiring terminal 22. In this application, the first wiring terminal 22 is cylindrical, and its diameter A first wire insertion hole 220 is provided at the rear end of the first terminal 22, which is larger than the diameter of the metal insertion rod 21. The first wire insertion hole 220 is used to insert a wire. At the same time, a screw hole is provided on the side wall of the first terminal 22, which is connected to the first wire insertion hole 220. A first wire pressing bolt 221 is threadedly connected to the screw hole. The first wire pressing bolt 221 is a hexagon socket bolt, and its end can press the wire in the first wire insertion hole 220, thereby realizing cold-pressed wiring of the first terminal 22, with low resistance and no noise or murmur; the first wire pressing bolt 221 faces the wiring window, and wiring is convenient and quick.

[0036] The first sleeve 3 is a cylindrical shape with open ends, and is connected to the front end of the plug body 1 by a threaded connection. It can cover the wiring window, that is, block the wiring window to prevent exposure, thereby improving safety and aesthetics in use; a first pressing surface is provided on the inner wall of the first sleeve 3, and the first pressing surface can contact the outer wall of the first tightening part 1a, so that the first tightening part 1a can be deformed inwardly to compress the female plug, thereby achieving locking and fixation of the plug body on the female plug; in this embodiment, the first pressing surface is an arc-shaped surface or an inclined surface, forming a necking structure, that is, the diameter becomes smaller. When the first sleeve 3 is rotated in the tightening direction, the first pressing surface approaches axially toward the first tightening part 1a until contact occurs. The first tightening part 1a is deformed inwardly under the pressure of the first pressing surface, thereby enabling it to clamp the cylindrical female plug, thereby achieving locking and fixation of the two, that is, achieving self-locking.

[0037] In order to improve the connection reliability and stability, the front end of the first tightening part 1a is exposed outside the first sleeve 3. Usually, the exposed distance is 1-2mm, which can ensure full insertion while increasing the clamping force as much as possible and facilitate the tightening operation of the first sleeve.

[0038] In the present application, the plug body 1 is made of conductive metal. At the same time, a second terminal 11 is provided in the wiring cavity 10. The second terminal 11 is connected to the plug body 1 for wiring, thereby grounding the plug body 1, improving the sound quality and reducing the noise. In this embodiment, a protruding structure is provided on the inner wall of the wiring cavity 10 to form the second terminal 11. The second terminal 11 is integrally formed with the plug body 1. The second terminal 11 is located at the rear end of the first terminal 22. A second wire insertion hole 111 is provided on the second terminal 11. The second wire insertion hole 111 can accommodate the wire to be inserted from the back to the front. A screw hole is provided on the side wall, which is connected to the second wire insertion hole 111, and a second wire pressing bolt 112 is threadedly connected to the screw hole. The second wire pressing bolt 112 is a hexagon socket bolt, and its end can press the wire in the second wire insertion hole 111, thereby realizing cold-pressed wiring of the second terminal, with low resistance, no noise and murmur; the second wire pressing bolt 112 faces the wiring window, and wiring is convenient and quick; at the same time, a wire groove 110 is provided on the side wall of the second terminal 11, and the wire groove 110 faces the wiring window for accommodating the wire on the first terminal 22. Its cross section is U-shaped, which is convenient for wiring and improves internal compactness.

[0039] In order to improve the connection reliability of the rear-end cable and avoid pulling the wires in the cable to separate from the terminal and affect normal use, in the present application, a rear clamping assembly is provided at the rear end of the plug body 1, and the rear clamping assembly is used to clamp the outer wall of the cable, thereby improving the connection reliability between the plug body and the cable and improving the tensile strength. Specifically, the rear clamping assembly includes a second sleeve 5 and an inner jacket 4, and the second sleeve 5 and the inner jacket 4 are both cylindrical, wherein the second sleeve 5 is threadedly connected to the rear end of the plug body 1, and the inner jacket 4 is arranged in the second sleeve 5. The rear end of the plug body 1 contacts the tail of the inner jacket 4, and the axial support and limitation of the inner jacket are realized. The head of the inner jacket 4 is provided with a second tightening portion 42. Specifically, a plurality of strip grooves are opened on the front side wall of the inner jacket 4. One end of the strip groove extends backward to the outside of the inner jacket 4, dividing its end into multiple tightening structures, which can produce elastic deformation to form a second tightening portion 42. In order to facilitate assembly and prevent excessive axial slippage, in this application, the side wall of the inner jacket 4 is inclined to the axis of the plug body 1, and the angle α between the two is greater than or equal to 1 degree and less than or equal to 2 degrees; a second pressing surface 50a is provided at the end of the inner wall of the second sleeve 5. The second pressing surface 50a is an arc or an inclined surface, forming a shrinking shape, that is, the diameter becomes smaller, and the second pressing surface 50a is used to tighten the second sleeve 5. The second clamping portion 42 is squeezed to cause it to produce elastic deformation; when the second sleeve 5 is rotated in the tightening direction, the second pressing surface approaches axially toward the second clamping portion until contact occurs, and the second clamping portion is deformed inwardly under the pressure of the second pressing surface, thereby enabling it to clamp the cable, thereby achieving fixation of the plug and the cable and improving the tensile strength; in the present application, an anti-slip groove 43 is provided on the inner wall of the second clamping portion 42, and the anti-slip groove 43 is used to contact with the outer wall to achieve anti-slip. The anti-slip groove is a plurality of annular grooves. In order to facilitate manufacturing, in this embodiment, the anti-slip groove 43 is a machined internal thread, which can be in contact with the cable sheath by pressing The inner sleeve 4 is provided with a plurality of retaining members 12 and 13 for retaining the inner sleeve 4. The retaining members 12 are provided with a plurality of retaining members 13 for retaining the inner sleeve 4. The retaining members 12 are provided with a plurality of retaining members 14 for retaining the inner sleeve 4. The retaining members 12 are provided with a plurality of retaining members 13 for retaining the inner sleeve 4. The retaining members 12 are provided with a plurality of retaining members 13 for retaining the inner sleeve 4. The retaining members 12 are provided with a plurality of retaining members 13 for retaining the inner sleeve 4. The retaining members 12 are provided with a plurality of retaining members 13 for retaining the inner sleeve 4

[0040] In the present application, the plug body 1 is cylindrical, and an annular protrusion 12 is provided on the side wall of the plug body. The annular protrusion is provided at the rear end position of the plug body 1, and is located at the rear end of the second wiring terminal. The side walls of the plug body 1 on both sides of the annular protrusion are respectively provided with a first thread 13 and a second thread 14. The first thread is located at the rear end of the wiring window, and is used to connect the first sleeve. The second thread is used to connect the second sleeve. After the connection is completed, the ends of the first sleeve and the second sleeve are in contact with the end face of the annular protrusion, and the outer diameter of the annular protrusion is the same as the outer diameter of the first sleeve and the second sleeve, forming an integrated structure with a compact structure and beautiful appearance.

[0041] Since there are multiple audio cables during the wiring process of audio equipment, in order to facilitate quick and accurate judgment and wiring, in this application, a color ring 51 is provided on the outer wall of the first sleeve or the second sleeve, and the color ring 51 is used for identification to achieve quick distinction; in this application, a plurality of annular grooves are provided on the side wall of the second sleeve, and different colors can be set in the annular grooves to form identification. The number of identifications is large and the scope of application is wide, which greatly improves the wiring efficiency and accuracy.

[0042] The utility model provides an RCA audio plug with a first sleeve, which enables the first clamping part at the front end of the plug to clamp the outer wall of the female plug to achieve locking and fixation, thereby preventing the plug from falling off due to accidental pulling, improving the reliability of use, and at the same time, avoiding poor contact caused by loose connectors, ensuring stable contact, reducing interference in signal transmission, and improving sound quality. A wiring window is provided to expose the internal wiring terminals, making it easier for the operator to connect the wires, ensuring stable wiring, and reducing noise caused by poor wiring. Cold-pressed wiring is adopted to improve the reliability and conductivity of the connection, reduce resistance, improve sound quality, and facilitate assembly and disassembly. and replacement; a rear clamping component is set to clamp and fix the cable, thereby improving the connection strength between the plug and the cable, avoiding separation or loose connection between the two caused by pulling, greatly improving the reliability and stability of use, and having a good use effect; a color ring structure is set on the side wall to facilitate users to quickly identify, thereby realizing fast and accurate wiring operations, and having strong practicality; in addition, the design of the color ring structure can also be customized according to different audio cable types to meet diverse usage needs; the utility model RCA audio plug has a compact structure, beautiful appearance, high connection strength, good tensile strength, stable signal transmission, and good sound quality.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An RCA audio plug, characterized in that: include: The plug body is cylindrical and has a wiring cavity formed therein. The rear end of the wiring cavity is open and can accommodate the insertion of a cable. The side wall of the plug body is provided with a wiring window connected to the wiring cavity. The head of the plug body is provided with a first clamping portion that can be inserted into the female plug and a metal plug rod that can be inserted into the socket of the female plug. The tail of the metal plug rod is provided with a first wiring terminal for wiring and facing the wiring window. The first sleeve is cylindrical and is connected to the front end of the plug body through a thread and can cover the wiring window. The inner wall of the first sleeve is provided with a first clamping surface, which can contact the outer wall of the first clamping part and press the female plug to achieve locking and fixation.

2. The RCA audio plug according to claim 1, wherein: The rear end of the metal insertion rod extends into the wiring cavity and forms the first wiring terminal. The end of the first wiring terminal is provided with a first wire insertion hole for inserting the wire. The side wall of the first wiring terminal is threadedly connected with a first wire pressing bolt for tightening the wire in the first wire insertion hole.

3. The RCA audio plug according to claim 1, wherein: The plug body is made of conductive metal, and a second wiring terminal for wiring and grounding the plug body is provided in the wiring cavity.

4. The RCA audio plug according to claim 3, wherein: The inner wall of the wiring cavity is provided with a protruding structure and forms a second wiring terminal. The second wiring terminal is located at the rear end of the first wiring terminal. The second wiring terminal is provided with a second wire insertion hole for inserting the wire. The side wall of the second wiring terminal is threadedly connected with a second wire pressing bolt for tightening the wire in the second wire insertion hole.

5. The RCA audio plug according to claim 4, wherein: A wire groove for accommodating the wires on the first wiring terminal is formed on the side wall of the second wiring terminal.

6. The RCA audio plug according to claim 1, wherein: The rear end of the plug body is provided with a rear pressing component capable of clamping the outer wall of the wire.

7. The RCA audio plug according to claim 6, wherein: The rear clamping assembly includes a second sleeve threadedly connected to the rear end of the plug body and an inner sleeve arranged in the second sleeve. The rear end of the plug body contacts the tail of the inner sleeve and provides axial support and limitation for it. The head of the inner sleeve is provided with a second tightening portion that can produce elastic deformation. The inner wall of the second sleeve is provided with a second clamping surface. The second clamping surface can contact the outer wall of the second tightening portion and compress the outer wall of the wire.

8. The RCA audio plug according to claim 7, wherein: The inner wall of the second tightening portion is provided with an anti-slip groove for contacting the outer wall of the wire and achieving anti-slip.

9. The RCA audio plug according to claim 7, wherein: A limiting component for radial limiting is provided between the rear end portion of the plug body and the tail portion of the inner jacket.

10. The RCA audio plug according to claim 7, wherein: The outer wall of the first sleeve and / or the second sleeve is provided with a color ring for identification.

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