Three core audio balanced transmission connection socket

Abstract

The utility model discloses a three core audio frequency balance transmission connecting socket, this socket includes the mounting seat, and the top of mounting seat is installed with multiple sets of socket body, and the front end of multiple sets of socket body all is fixedly connected with fixed bush, and the front end of multiple sets of socket body all has the first elastic sheet of joint, and the left and right ends of first elastic sheet bottom all are fixedly connected with the first pin, and the rear end of multiple sets of socket body all has the two groups of second elastic sheet of joint, and the bottom end fixedly connected with the second pin of second elastic sheet, and the bottom end of multiple sets of socket body inside is inserted with the third elastic sheet, and the utility model discloses the design not only guarantees the stable connection of pin and circuit, the reliability of elastic sheet electric conduction, also effectively protects the internal structure, realizes the flexible controllable fixing of plug simultaneously, avoids the loose drop in use, greatly improves the stability, reliability and security of socket, prolongs the service life and is convenient for installation maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of audio socket technology, specifically relating to a three-core audio balanced transmission connection socket. Background Technology

[0002] The three-core balanced audio transmission connector is a connection component used to achieve balanced transmission of audio signals. It is widely used in professional audio equipment, broadcasting, film and television, stage performances and other fields. By adopting a three-core structure, it can effectively reduce the impact of external electromagnetic interference on audio signals, making audio signal transmission more stable and reliable, and thus significantly improving the quality and fidelity of sound.

[0003] Existing three-pin balanced audio transmission connectors mainly consist of a shell, pins, and metal spring contacts. The pins are the key components for the transmission and distribution of electrical signals in the three-pin balanced audio transmission connector. The three pins refer to the three sets of pins inside the connector used for electrical signal transmission and connection. The three sets of pins are responsible for transmitting positive phase signals, negative phase signals, and ground, respectively, and are fixedly connected to the metal spring contacts. The plug is inserted through the socket on the shell. After insertion, the metal spring contacts fit tightly with the plug to complete the transmission of electrical signals. These metal spring contacts tightly clamp the metal conductive part of the plug to ensure good electrical contact. However, after long-term and frequent use, the metal spring contacts are prone to loosening due to pulling or reduced elasticity over time, which may even cause the plug to fall off halfway, resulting in poor contact and short circuits. This can burn out the three-pin balanced audio transmission connector and may also cause electrical sparks that could lead to fires, posing a safety hazard and making it inconvenient to use.

[0004] Therefore, it is of great importance to design a three-core balanced audio transmission connector to solve the above-mentioned defects. Utility Model Content

[0005] (1) Technical problems to be solved In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a three-core audio balanced transmission connection socket. This socket aims to solve the technical problems of the existing three-core audio balanced transmission connection socket, which, after long-term and frequent use, suffers from reduced elasticity of the metal spring structure, resulting in loose plug connection, poor contact, short circuit, burnout, and even fire hazards, and is also inconvenient to use.

[0006] (2) Technical solution To solve the above-mentioned technical problems, this utility model provides a three-core audio balanced transmission connection socket. The socket includes a mounting base, on the top of which multiple socket bodies are mounted. Each set of socket bodies has a fixed sleeve fixedly connected to its front end. Each set of socket bodies has a first spring clip snapped into its front end. Each first spring clip has a first pin fixedly connected to its left and right ends at the bottom. Each set of socket bodies has two sets of second spring clips snapped into its rear end. Each second spring clip has a second pin fixedly connected to its bottom end. Each set of socket bodies has a third spring clip inserted into its bottom end. Each third spring clip has a third pin fixedly connected to its rear end. The fixed sleeve has an insertion hole inside. The upper and lower ends of the fixed sleeve are slidably connected to fixed frames. The left and right ends of the fixed sleeve are fixedly connected to guide posts. The two sets of fixed frames are slidably connected to the guide posts through movable frames. Springs are installed between the two sets of movable frames and the fixed sleeve. The two sets of movable frames are slidably connected to the fixed sleeve through buttons at their opposite ends.

[0007] When using the socket of this technical solution, first insert the first spring into the first assembly slot at the front end of the socket body, and fix it with the first locking block through the slot. Then insert the second spring into the second assembly slot at the rear end of the socket body, and fix it with the socket body through the second locking block on the outside. Insert the third spring into the third assembly slot at the bottom of the socket body, thereby completing the assembly of the socket body. The first, second, and third pins pass through the corresponding through holes inside the mounting base for connecting to the external circuit. Next, insert the mounting edge of the protective sleeve into the corresponding mounting slot on the mounting base from back to front to complete the protective installation of the socket body. Use screws to fix the mounting base in the required position through the multiple sets of mounting holes on the left and right ends of the mounting base. Before inserting the plug, press the button on the fixed sleeve to push the movable frame to compress the spring, which moves the fixed frame away to widen the socket space so that the plug can be inserted smoothly. After the plug is inserted, release the button, and the spring extends to move the fixed frame to fit the plug for a stable fixation.

[0008] Preferably, each of the two sets of fixed frames is fixedly connected to a docking post at the end away from the movable frame, and both sets of docking posts are inserted into the interior of the movable frame. Each of the two sets of fixed frames is fixedly connected to a rubber pad on the opposite side.

[0009] Furthermore, rubber sleeves are fixedly connected to the connection points of the fixed socket and the two sets of buttons, and the two sets of buttons are slidably connected to the rubber sleeves.

[0010] Furthermore, multiple sets of mounting holes are provided at both ends of the mounting base, and through holes are provided inside the mounting base at positions corresponding to the first pin, the second pin, and the third pin, with the first pin, the second pin, and the third pin all extending through to the bottom of the through holes.

[0011] Furthermore, a protective sleeve is inserted into the top of the mounting base and on the outside of the multiple socket bodies. The left and right ends of the protective sleeve are fixedly connected to mounting edges, and both mounting edges are inserted into the mounting base through mounting slots.

[0012] Furthermore, a first assembly slot is provided at the front end of the socket body corresponding to the first spring contact, and the first spring contact is inserted into the first assembly slot. First locking blocks are fixedly connected to both sides of the first assembly slot, and both sides of the first spring contact are engaged with the first locking blocks through the locking slots.

[0013] Furthermore, a second assembly slot is provided at the rear end of the socket body corresponding to the second spring, and the second spring is inserted into the second assembly slot. The outer side of the second spring is engaged with the socket body by a second locking block.

[0014] Furthermore, a third assembly slot is provided at the bottom of the socket body, corresponding to the position of the third spring contact, and the third spring contact is inserted into the third assembly slot.

[0015] (3) Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, through the cooperative design of a socket, socket body, first spring contact, first pin, second spring contact, second pin, third spring contact, and third pin, completes the assembly of the socket body by inserting the first spring contact into the first assembly slot at the front end of the socket body and securing it with the first locking block via a slot. The second spring contact is then inserted into the second assembly slot at the rear end of the socket body and secured with the socket body via an outer second locking block. Finally, the third spring contact is inserted into the third assembly slot at the bottom of the socket body, thus completing the assembly of the socket body. The first, second, and third pins pass through corresponding through holes inside the mounting base for connecting to external circuits. Next, the mounting edge of the protective sleeve is inserted from back to front into the corresponding mounting slot on the mounting base, completing the protective installation of the socket body. Screws are used to fix the mounting base in the required position through multiple sets of mounting holes on both sides of the mounting base. This design not only ensures a stable connection between the pins and the circuit and the reliability of the spring contact's electrical conduction but also effectively protects the internal structure and facilitates installation and maintenance.

[0016] 2. This utility model, through the design of a fixed socket, allows for easy insertion of the plug. Before inserting the plug, pressing the button causes the movable frame to slide along the guide post. The button pushes the movable frame, compressing the spring and causing the fixed frame to slide together, moving the two sets of fixed frames apart. This widens the internal space of the socket, facilitating easy plug insertion. After the plug is inserted, releasing the button causes the spring to stretch and return to its original shape. Under the spring's elasticity, the movable frame slides in the opposite direction along the guide post, causing the fixed frame to slide towards the plug. The two sets of fixed frames fit tightly against the outside of the plug, providing a secure fixation. This design allows for flexible loosening and tight fixing of the plug before and after insertion, effectively preventing safety hazards caused by plug loosening or falling off after long-term use. It is also convenient to operate, provides stable guidance, and ensures the normal operation and long service life of the socket. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the top structure of the mounting base of this utility model; Figure 3 This is a schematic diagram of the front structure of the socket body of this utility model; Figure 4 This is a schematic diagram of the internal structure of the fixing sleeve of this utility model; Figure 5 This is a schematic diagram of the back structure of the socket body of this utility model; Figure 6 This is a schematic diagram of the bottom structure of the socket body of this utility model; Figure 7 This is an exploded view of the socket body structure of this utility model.

[0018] The markings in the attached diagram are as follows: 1. Mounting base; 101. Mounting hole; 102. Protective sleeve; 103. Mounting edge; 104. Mounting slot; 2. Socket body; 3. Fixed sleeve; 301. Socket hole; 302. Fixed frame; 303. Guide post; 304. Movable frame; 305. Spring; 306. Button; 307. Connecting post; 308. Rubber pad; 309. Rubber sleeve; 4. First spring; 401. First assembly slot; 402. First locking block; 403. Locking groove; 5. First pin; 6. Second spring; 601. Second assembly slot; 602. Second locking block; 7. Second pin; 8. Third spring; 801. Third assembly slot; 9. Third pin. Detailed Implementation

[0019] This specific embodiment is a three-core audio balanced transmission connection socket, the structural diagram of which is shown below. Figure 1-7As shown, the socket includes a mounting base 1, with multiple socket bodies 2 mounted on the top of the mounting base 1. Each socket body 2 has a fixed socket sleeve 3 fixedly connected to its front end. Each socket body 2 has a first spring 4 snapped into its front end. Each first spring 4 has a first pin 5 fixedly connected to its left and right ends at the bottom. Each socket body 2 has two second springs 6 snapped into its rear end. Each second spring 6 has a second pin 7 fixedly connected to its bottom end. Each socket body 2 has a third spring 8 inserted into its bottom end. Each third spring 8 has a third pin 9 fixedly connected to its rear end.

[0020] First, the fixed socket 3 has an insertion hole 301 inside. Fixed frames 302 are slidably connected to the upper and lower ends of the fixed socket 3, and guide posts 303 are fixedly connected to the left and right ends of the fixed socket 3. The two sets of fixed frames 302 are slidably connected to the guide posts 303 via movable brackets 304. Springs 305 are installed between the two sets of movable brackets 304 and the fixed socket 3. The two sets of movable brackets 304 are slidably connected to the fixed socket 3 via buttons 306. Before inserting the plug, press the button 306 to make the movable brackets 304 slide along the guide posts 303. At this time, the movable brackets 304 are pushed by the button 306, compressing the springs 305 and causing the fixed frames 302 to slide together, making the two sets of fixed frames 302 move away from each other, thereby widening the internal space of the insertion hole 301. To facilitate smooth plug insertion, after the plug is inserted into the socket 301, the button 306 is released. At this time, the spring 305, having removed the external pressure, begins to stretch and return to its original shape. Under the elastic force of the spring 305, the movable frame 304 slides in the opposite direction along the guide post 303, thereby driving the fixed frame 302 to slide towards the plug. The two sets of fixed frames 302 tightly fit against the outside of the plug to achieve a stable fixation of the plug. During this process, the guide post 303 provides a stable guiding effect for the sliding of the movable frame 304 and the fixed frame 302, ensuring that the fixed frame 302 can move accurately along a specific direction. This allows for flexible loosening and tight fixing of the plug before and after insertion, effectively avoiding the safety hazards caused by the plug loosening or falling off after long-term use. It is also easy to operate, provides stable guidance, and ensures the normal operation and long service life of the socket.

[0021] Furthermore, each of the two sets of fixed frames 302 has a docking post 307 fixedly connected to the end away from the movable frame 304, and both sets of docking posts 307 are inserted into the interior of the movable frame 304. Rubber pads 308 are fixedly connected to the opposite side of each of the two sets of fixed frames 302. When the button 306 is pressed, causing the movable frame 304 to slide and the fixed frames 302 to separate, the docking posts 307 disengage from the interior of the movable frame 304. When the button 306 is released and the spring 305 causes the movable frame 304 to slide in the opposite direction, causing the fixed frames 302 to move closer, the docking posts 307 re-insert into the interior of the movable frame 304. This further enhances the stability of the plug after the two sets of fixed frames 302 are fixed. When the fixed frame 302 is in contact with the plug, the rubber pad 308 contacts the plug surface. The rubber pad 308 increases the friction between the fixed frame 302 and the plug, making the fixation more secure. Simultaneously, the rubber pad 308 acts as a buffer, preventing damage to the plug surface from hard contact between the fixed frame 302 and the plug, thus extending the plug's service life.

[0022] Then, rubber sleeves 309 are fixedly connected to the connection between the fixed sleeve 3 and the two sets of buttons 306, and the two sets of buttons 306 are slidably connected to the rubber sleeves 309. During the process of pressing and releasing the buttons 306, the buttons 306 slide inside the rubber sleeves 309. The rubber sleeves 309 play a role in sealing and dust prevention, preventing dust and other impurities from entering the interior of the fixed sleeve 3 and affecting the normal operation of the buttons 306, the movable bracket 304 and other components, thus extending the overall service life of the fixed sleeve 3.

[0023] Furthermore, multiple sets of mounting holes 101 are provided at both ends of the mounting base 1. Through holes are provided inside the mounting base 1 at positions corresponding to the first pin 5, the second pin 7, and the third pin 9. The first pin 5, the second pin 7, and the third pin 9 all pass through to the bottom of the through holes. The mounting base 1 is fixed in the required position by screws through the mounting holes 101 at both ends of the mounting base 1. The first pin 5, the second pin 7, and the third pin 9 pass through the corresponding through holes inside the mounting base 1 to connect to external circuits to realize electrical signal transmission.

[0024] The protective sleeve 102 is inserted into the top of the mounting base 1 and outside the multiple socket bodies 2. The left and right ends of the protective sleeve 102 are fixedly connected to the mounting edges 103. Both sets of mounting edges 103 are inserted into the mounting base 1 through mounting slots 104. The protective sleeve 102 is aligned with the top of the mounting base 1, and the mounting edges 103 are inserted into the corresponding mounting slots 104 on the mounting base 1 from back to front to complete the installation of the protective sleeve 102. The protective sleeve 102 can protect the socket body 2 and prevent dust, debris, liquids, etc. from entering the socket body 2 and causing damage to the internal structure and pins. At the same time, it can also prevent the direct impact of external forces on the socket body 2 to a certain extent, playing a buffer protection role. The cooperation between the mounting edges 103 and the mounting slots 104 makes the installation and removal of the protective sleeve 102 very convenient, which is convenient for maintenance, cleaning and other operations of the socket.

[0025] Furthermore, a first assembly slot 401 is provided at the front end of the socket body 2 at the position corresponding to the first spring contact 4, and the first spring contact 4 is inserted into the first assembly slot 401. The left and right sides of the first assembly slot 401 are fixedly connected to the first locking blocks 402. The left and right sides of the first spring contact 4 are engaged with the first locking blocks 402 through the locking grooves 403. When assembling the socket body 2 and the first spring contact 4, the first spring contact 4 is inserted into the first assembly slot 401, and then engaged and fixed with the first locking blocks 402 on the left and right sides of the first assembly slot 401 through the locking grooves 403. This ensures that the installation of the first spring contact 4 is accurate and firm. The locking structure can prevent the first spring contact 4 from loosening, shifting or falling off during normal use, ensuring the stability of electrical signal transmission and facilitating the maintenance and replacement of the first spring contact 4. When the socket is working, the first spring contact 4 is used to contact the corresponding position of the plug to realize the transmission of electrical signals.

[0026] Secondly, a second assembly slot 601 is provided at the rear end of the socket body 2, corresponding to the position of the second spring 6. The second spring 6 is inserted into the second assembly slot 601, and the outer side of the second spring 6 is engaged with the socket body 2 through the second locking block 602. The second spring 6 is inserted into the second assembly slot 601, and then engaged with the socket body 2 through the second locking block 602 on the outer side of the second spring 6. This ensures the stability and accuracy of the installation of the second spring 6. The second locking block 602 effectively prevents the second spring 6 from loosening, ensuring that the second spring 6 can maintain a good electrical contact state during long-term use and frequent plug-in / plug-out, stably transmit electrical signals, and ensure the reliable electrical performance of the socket. During the operation of the socket, the second spring 6 contacts the corresponding part of the plug to transmit electrical signals.

[0027] Finally, a third assembly slot 801 is provided at the bottom of the socket body 2, corresponding to the position of the third spring 8. The third spring 8 is inserted into the third assembly slot 801. When the socket is working, the third spring 8 contacts the corresponding part of the plug to realize the function of transmitting electrical signals. The third assembly slot 801 provides a precise installation position for the third spring 8, ensuring that the third spring 8 can accurately cooperate with the plug to conduct electrical signals. At the same time, the third assembly slot 801 plays a role in positioning and fixing the third spring 8, preventing it from shaking or shifting during use, which would affect the transmission effect of electrical signals and improve the overall stability and reliability of the socket.

[0028] When using the device of this technical solution, first insert the first spring piece 4 into the first assembly slot 401 at the front end of the socket body 2, and fix it with the first locking block 402 through the locking groove 403. Then insert the second spring piece 6 into the second assembly slot 601 at the rear end of the socket body 2, and fix it with the socket body 2 through the outer second locking block 602. Then insert the third spring piece 8 into the third assembly slot 801 at the bottom of the socket body 2, thereby completing the assembly of the socket body 2. The first pin 5, the second pin 7, and the third pin 9 pass through the corresponding through holes inside the mounting base 1 for connecting to the external circuit. Then insert the mounting edge 103 of the protective sleeve 102 into the corresponding mounting slot 104 on the mounting base 1 from back to front to complete the protective installation of the socket body 2. Use screws to pass through the left side of the mounting base 1. Multiple sets of mounting holes 101 at both ends on the right fix the mounting base 1 in the required position. Before inserting the plug, press the button 306 on the fixed sleeve 3 to push the movable frame 304 to compress the spring 305, causing the fixed frame 302 to move away, widening the space of the socket 301 so that the plug can be inserted smoothly. After the plug is inserted, release the button 306, and the spring 305 extends to cause the fixed frame 302 to fit against the plug for a stable fixation. The whole operation process is simple and convenient. This utility model not only ensures the stable connection between the pins and the circuit and the reliability of the spring contact's electrical conduction through its design, but also effectively protects the internal structure. At the same time, it achieves flexible and controllable fixation of the plug, avoiding loosening and falling off during use, greatly improving the stability, reliability and safety of the socket, extending its service life and facilitating installation and maintenance.

[0029] 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 three-core balanced audio transmission connector, the connector comprising a mounting base (1); characterized in that, The top of the mounting base (1) is equipped with multiple sets of socket bodies (2). The front ends of the multiple sets of socket bodies (2) are fixedly connected to fixed sleeves (3). The front ends of the multiple sets of socket bodies (2) are snapped with first spring pieces (4). The left and right ends of the bottom of the first spring pieces (4) are fixedly connected with first pins (5). The rear ends of the multiple sets of socket bodies (2) are snapped with two sets of second spring pieces (6). The bottom ends of the second spring pieces (6) are fixedly connected with second pins (7). The bottom ends of the multiple sets of socket bodies (2) are inserted with third spring pieces (8). The rear ends of the third spring pieces (8) are fixedly connected with third pins (9). The fixed sleeve (3) has an insertion hole (301) inside. The upper and lower ends of the fixed sleeve (3) are slidably connected to fixed frames (302). The left and right ends of the fixed sleeve (3) are fixedly connected to guide posts (303). The two sets of fixed frames (302) are slidably connected to the guide posts (303) through movable frames (304) on opposite sides. The two sets of movable frames (304) are installed with springs (305) between them and the fixed sleeve (3). The two sets of movable frames (304) are slidably connected to the fixed sleeve (3) through buttons (306).

2. The three-core balanced audio transmission connector according to claim 1, characterized in that, Both sets of fixed frames (302) are fixedly connected to a docking post (307) at the end away from the movable frame (304), and both sets of docking posts (307) are inserted into the interior of the movable frame (304). Both sets of fixed frames (302) are fixedly connected to a rubber pad (308) on the opposite side.

3. A three-core balanced audio transmission connector according to claim 1, characterized in that, The fixed sleeve (3) and the two sets of buttons (306) are both fixedly connected with rubber sleeves (309), and the two sets of buttons (306) are slidably connected to the rubber sleeves (309).

4. A three-core balanced audio transmission connector according to claim 1, characterized in that, The mounting base (1) has multiple sets of mounting holes (101) at both the left and right ends. The mounting base (1) has through holes at the positions corresponding to the first pin (5), the second pin (7) and the third pin (9), and the first pin (5), the second pin (7) and the third pin (9) all extend to the bottom of the through holes.

5. A three-core balanced audio transmission connector according to claim 1, characterized in that, A protective sleeve (102) is inserted into the top of the mounting base (1) and outside the multiple socket bodies (2). The left and right ends of the protective sleeve (102) are fixedly connected with mounting edges (103). Both sets of mounting edges (103) are inserted into the mounting base (1) through mounting slots (104).

6. A three-core balanced audio transmission connector according to claim 1, characterized in that, The socket body (2) has a first assembly slot (401) at the front end corresponding to the first spring (4), and the first spring (4) is inserted into the first assembly slot (401). The left and right sides of the first assembly slot (401) are fixedly connected to the first card block (402), and the left and right sides of the first spring (4) are engaged with the first card block (402) through the card slot (403).

7. A three-core balanced audio transmission connector according to claim 1, characterized in that, The socket body (2) has a second assembly slot (601) at the position corresponding to the second spring (6) at the rear end, and the second spring (6) is inserted into the second assembly slot (601). The outer side of the second spring (6) is engaged with the socket body (2) through the second locking block (602).

8. A three-core balanced audio transmission connector according to claim 1, characterized in that, The socket body (2) has a third assembly slot (801) at the bottom of the socket body (2) corresponding to the third spring (8), and the third spring (8) is inserted into the third assembly slot (801).

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