A cable connection structure for cable television

Abstract

The utility model discloses a cable television cable connection structure relates to cable connection technical field, including the casing, one end of casing is provided with input, the other end of casing is provided with two output, one end of input and output respectively extends to the inside of casing, and the extension of input and output all is provided with line shielding cavity, and the inside installation of casing between two line shielding cavities has distribution circuit shielding cavity, the other end mounting of input has input protection layer, and one end of input protection layer is connected with cable, and one end mounting of cable has signal protection layer, and one end mounting of signal protection layer has connector, and the outer surface of connector and input all installs rubber ring. The utility model discloses by setting a series of structure, improves signal transmission intensity, makes the cable connection position place to have water resistance simultaneously, reduces high frequency signal crosstalk.

Description

Technical Field

[0001] This utility model relates to the field of cable connection technology, specifically a cable television cable connection structure. Background Technology

[0002] The cable connection structure of a cable television (CATV) system is a key component in ensuring stable signal transmission. Its design must take into account signal integrity, anti-interference capability, and scalability.

[0003] In cable television cable connection structures, one end of the cable needs to be connected to a distributor to distribute the cable input signals, resources, or data to multiple output channels or systems according to specific rules. Most existing connection methods involve setting a specially shaped connector at one end of the cable, which is then plugged into the distributor. This connection method has low connection strength and lacks a protective structure, which may affect signal strength. During use, dust or liquid may enter through gaps at the connection point, leading to a decrease in insulation resistance between conductors, causing short circuits or leakage. Dust accumulation can also hinder connector insertion and removal, resulting in poor contact. Furthermore, the close proximity between the input, distribution circuit, and output ends inside the distributor may cause high-frequency signal crosstalk, affecting the picture clarity of cable television. Utility Model Content

[0004] The purpose of this invention is to provide a cable television cable connection structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable television cable connection structure, comprising a housing, an input terminal at one end of the housing, and two output terminals at the other end of the housing. One end of each input and output terminal extends into the housing, and each extension end of the input and output terminals is provided with a line shielding cavity. A distribution circuit shielding cavity is installed inside the housing between the two line shielding cavities. An input protection layer is installed at the other end of the input terminal. A cable is connected to one end of the input protection layer, and a signal protection layer is installed at one end of the cable. A connector is installed at one end of the signal protection layer. Rubber rings are installed on the outer surfaces of both the connector and the input terminal. An upper waterproof clamp is connected to the top of both the connector and the input terminal, and a lower waterproof clamp is connected to the bottom of both the connector and the input terminal.

[0006] Preferably, the upper waterproof clamp has inserts on both sides of its bottom edge, and the lower waterproof clamp has inserts on both sides of its top edge. The upper and lower waterproof clamps each have two grooves at their opposite ends that match the rubber ring. The inserts and inserts are matched so that when the cable is plugged into one end of the input terminal, the connector contacts the input terminal. Then, the upper and lower waterproof clamps are connected and fixed to the outer surfaces of the connector and input terminal via snaps and grooves. The rubber ring is secured in the groove, reducing gaps at the connection point and preventing dust and liquid from entering the signal transmission core, thus avoiding signal interference and loss.

[0007] Preferably, a fixing knob is provided at the rear end of the signal protection layer. When the fixing knob is rotated toward the signal protection layer, it will tighten the rear end of the signal protection layer and fix the signal protection layer to the outer surface of the cable through friction. This is a common structure in cable joint structures, which is intended to fix components to the outer surface of the cable.

[0008] Preferably, the front end of the cable is provided with a signal transmission inner core, which matches the input protective layer. A signal coupling socket is provided at the center of the input protective layer, and the signal transmission inner core is inserted into the signal coupling socket to facilitate data transmission.

[0009] Preferably, spring buttons are installed at both the top and bottom of the input protective layer. The two spring buttons match the inner wall of the connector. When the connector is fitted onto the outer surface of the input protective layer, the connector can be rotated to lock the two spring buttons at the corresponding positions on the inner wall of the connector, thus achieving initial locking.

[0010] Preferably, a positioning protrusion is installed at the top of the housing, and a top cover is installed on the outer surface of the positioning protrusion. A waterproof ring is provided at the top of the positioning protrusion. The housing and the top cover are installed by screws. The top cover exerts downward pressure on the housing due to the screws. The positioning protrusion applies pressure to the waterproof ring, so that the waterproof ring fills the gap between the top cover and the positioning protrusion, thereby achieving a waterproof effect.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This cable TV connection structure, through a signal protection layer and an input end, has a connector at one end of the signal protection layer and an input protection layer at the other end. The connector matches the protection layer and is fitted onto the outer surface of the protection layer, allowing the cable's signal transmission core to be inserted into the signal coupling socket for signal transmission. The signal protection layer and the input protection layer protect the cable's signal transmission core, providing signal shielding and improving signal transmission strength. The outer surfaces of the connector and the input end are connected to an upper waterproof clamp and a lower waterproof clamp, which work in conjunction with a rubber ring to ensure waterproofing at the cable connection point.

[0013] 2. The cable connection structure of this cable TV uses a line shielding cavity and a distribution circuit shielding cavity. The cavities are made of aluminum alloy, which separates the input end, distribution circuit and output end into independent cavities to reduce high-frequency signal crosstalk. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model in disassembled state;

[0016] Figure 3 This is a schematic diagram of the cable structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the shell structure of this utility model in a disassembled state.

[0018] In the diagram: 1. Housing; 2. Output terminal; 3. Top cover; 4. Upper waterproof clip; 5. Signal protection layer; 6. Fixing knob; 7. Cable; 8. Connector; 9. Lower waterproof clip; 10. Socket; 11. Rubber ring; 12. Input terminal; 13. Input protection layer; 14. Insert block; 15. Spring button; 16. Signal transmission core; 17. Waterproof ring; 18. Distribution circuit shielding cavity; 19. Positioning protrusion; 20. Line shielding cavity. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figures 1 to 4As shown, the cable TV cable connection structure in this embodiment includes a housing 1. One end of the housing 1 is provided with an input terminal 12, and the other end of the input terminal 12 is connected to a cable 7 for signal input. The other end of the housing 1 is provided with two output terminals 2, which output signals. One end of the input terminal 12 and the output terminal 2 extend into the housing 1, respectively. Both the extended ends of the input terminal 12 and the output terminal 2 are provided with line shielding cavities 20. Between the two line shielding cavities 20, a distribution circuit shielding cavity 18 is installed inside the housing 1. Both the line shielding cavity 20 and the distribution circuit shielding cavity 18 are made of aluminum alloy, which separates the input terminal 12, the distribution circuit, and the output terminal 2 into independent cavities to reduce high-frequency signal crosstalk. The input terminal 12 and the distribution circuit are connected through a shielded coaxial transmission line to ensure impedance matching. The output terminal 2 and the distribution circuit are routed using a star topology, with each output having the same length to reduce signal delay differences. The other end of the input terminal 12 is provided with an input protection layer 13, which is made of aluminum alloy. The input protective layer 13 has a signal coupling socket at its center. One end of the input protective layer 13 is connected to a cable 7. The front end of the cable 7 is inserted into the signal coupling socket through the signal transmission core 16 for signal transmission. One end of the cable 7 is equipped with a signal protective layer 5, and one end of the signal protective layer 5 is equipped with a connector 8. Both the signal protective layer 5 and the connector 8 are made of aluminum alloy and have a shielding effect. The outer surfaces of the connector 8 and the input terminal 12 are equipped with rubber rings 11. The top of the connector 8 and the input terminal 12 are connected to an upper waterproof clip 4, and the bottom of the connector 8 and the input terminal 12 are connected to a lower waterproof clip 9. The upper waterproof clip 4 and the lower waterproof clip 9 match the rubber rings 11 to reduce the gap at the connection position of the connector 8 and the input terminal 12. This prevents dust and liquid from entering the signal transmission core 16 and the signal coupling socket through the gap during use, which would reduce the insulation resistance between the conductors, causing short circuits or leakage. Dust accumulation would also hinder the insertion and removal of the connector, leading to poor contact.

[0022] Specifically, insert blocks 14 are installed on both sides of the bottom edge of the upper waterproof clip 4, and insert holes 10 are installed on both sides of the top edge of the lower waterproof clip 9. Two grooves matching the rubber ring 11 are opened at the opposite ends of the upper waterproof clip 4 and the lower waterproof clip 9. The clips and insert holes 10 match. When the cable 7 is plugged into one end of the input terminal 12, the connector 8 contacts the input terminal 12. Then, the upper waterproof clip 4 and the lower waterproof clip 9 are connected and fixed to the outer surface of the connector 8 and the input terminal 12 by the buckle and the groove. The rubber ring 11 is stuck in the groove to reduce the gap at the connection position and prevent dust and liquid from entering the signal transmission core 16 from the connection position, causing signal interference and loss.

[0023] Furthermore, a fixing knob 6 is provided at the rear end of the signal protection layer 5. When the fixing knob 6 rotates toward the signal protection layer 5, it will tighten the rear end of the signal protection layer 5 and fix the signal protection layer 5 to the outer surface of the cable 7 by friction. This is a common structure in the cable 7 connector structure, which is intended to fix the components to the outer surface of the cable 7.

[0024] Furthermore, the front end of the cable 7 is provided with a signal transmission inner core 16, which matches the input protective layer 13. A signal coupling socket is provided at the center of the input protective layer 13, and the signal transmission inner core 16 is inserted into the signal coupling socket to facilitate data transmission.

[0025] Furthermore, spring buttons 15 are installed at both the top and bottom of the input protective layer 13. The two spring buttons 15 are matched with the inner wall of the connector 8. When the connector 8 is sleeved on the outer surface of the input protective layer 13, the connector 8 can be rotated to make the two spring buttons 15 lock in the corresponding positions on the inner wall of the connector 8 to achieve initial locking.

[0026] Furthermore, a positioning protrusion 19 is installed at the top of the housing 1, and a top cover 3 is installed on the outer surface of the positioning protrusion 19. A waterproof ring 17 is provided at the top of the positioning protrusion 19. The housing 1 and the top cover 3 are installed by screws. The top cover 3 exerts downward pressure on the housing 1 due to the influence of the screws. The positioning protrusion applies pressure to the waterproof ring 17, so that the waterproof ring 17 fills the gap between the top cover 3 and the positioning protrusion, thereby achieving a waterproof effect.

[0027] The usage method of this embodiment is as follows: When connecting cable 7, first remove the protective layer at the front end of cable 7 to expose the signal transmission core 16 of cable 7. Then, put the signal protective layer 5 on the stripped end of cable 7, so that the fixing knob 6 is located at the position of the protective layer of cable 7. Then, rotate the fixing knob 6 to move towards the signal protective layer 5, tighten the rear end of the signal protective layer 5, and fix the signal protective layer 5 to the outer surface of cable 7 by friction. This is a common structure in cable 7 connector structure, which aims to fix the components to the outer surface of cable 7. After fixing, insert the connector 8 towards the input end 12, so that the connector 8 is put on the outer surface of the input protective layer 13. Rotate the connector 8 so that the two spring buttons 15 are locked in the corresponding positions on the inner wall of the connector 8 to achieve preliminary locking. After preliminary locking, then the upper waterproof clip 4 and The lower waterproof clip 9 is fixed to the outer surface of the connector 8 and the input terminal 12 by means of a snap and a groove. The rubber ring 11 is stuck in the groove to reduce the gap at the connection position of the connector 8 and the input terminal 12. This prevents dust and liquid from entering the signal transmission core 16 and the signal coupling socket position through the gap during use, which would reduce the insulation resistance between conductors and cause short circuits or leakage. Dust accumulation will also hinder the insertion and removal of the connector, resulting in poor contact. The signal is transmitted from the cable 7 to the distribution circuit and then output from the output terminal 2. During signal transmission, the line shielding cavity 20 and the distribution circuit shielding cavity 18 are both made of aluminum alloy, which separates the input terminal 12, the distribution circuit, and the output terminal 2 into independent cavities to reduce high-frequency signal crosstalk. The input terminal 12 and the distribution circuit are connected through a shielded coaxial transmission line to ensure impedance matching.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A cable television connection structure, comprising a housing (1), characterized in that: One end of the housing (1) is provided with an input terminal (12), and the other end of the housing (1) is provided with two output terminals (2). One end of the input terminal (12) and the output terminal (2) extend into the interior of the housing (1). The extended ends of the input terminal (12) and the output terminal (2) are provided with line shielding cavities (20). Between the two line shielding cavities (20), the interior of the housing (1) is equipped with a distribution circuit shielding cavity (18). The other end of the input terminal (12) is equipped with an input protection layer (13). One end of the input protection layer (13) is connected to a cable (7). One end of the cable (7) is equipped with a signal protection layer (5). One end of the signal protection layer (5) is equipped with a connector (8). The outer surfaces of the connector (8) and the input terminal (12) are both equipped with rubber rings (11). The top ends of the connector (8) and the input terminal (12) are connected to an upper waterproof clip (4). The bottom ends of the connector (8) and the input terminal (12) are connected to a lower waterproof clip (9).

2. The cable television cable connection structure according to claim 1, characterized in that: Insert blocks (14) are installed on both sides of the bottom end of the upper waterproof clip (4), and insertion holes (10) are installed on both sides of the top end of the lower waterproof clip (9). Two grooves matching the rubber ring (11) are opened at the opposite ends of the upper waterproof clip (4) and the lower waterproof clip (9).

3. The cable television cable connection structure according to claim 1, characterized in that: A fixed knob (6) is provided at the rear end of the signal protection layer (5).

4. The cable television cable connection structure according to claim 1, characterized in that: The front end of the cable (7) is provided with a signal transmission core (16), which is matched with the input protection layer (13).

5. The cable television cable connection structure according to claim 1, characterized in that: The input protective layer (13) is equipped with spring buttons (15) at both the top and bottom, and the two spring buttons (15) are matched with the inner wall of the connector (8).

6. The cable television cable connection structure according to claim 1, characterized in that: The top of the housing (1) is provided with a positioning protrusion (19), the outer surface of the positioning protrusion (19) is provided with a top cover (3), and the top of the positioning protrusion (19) is provided with a waterproof ring (17).

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