Waterproof joint of shielding cable

Abstract

The utility model belongs to the technical field of cable joints, and discloses a waterproof joint for a shielding cable, which comprises an aluminum alloy pressing ring which is directly pre-pressed outside a cable shielding layer. The outer ring of the aluminum alloy compression ring is sleeved with a metal joint, and a gap between the aluminum alloy compression ring and the metal joint is connected with an annular spring; an outer ring of the metal joint is in threaded connection with a nut, an inner ring of the metal joint is in inserted connection with a sealing core body, the sealing core body is provided with a via hole through which a cable passes, and the nut applies pressure to the sealing core body to force the sealing core body to extrude the cable in the via hole. The cable connector is simple in structure and stable in sealing performance, workers can conveniently and rapidly install, disassemble and disassemble the cable connector, the aluminum alloy pressing ring is pre-pressed on a cable of a client to replace a hexagonal pressing ring accessory of the client, the number of parts is reduced, the overall cost is reduced, and the overall weight of the connector is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable joints, and in particular relates to a shielded cable waterproof joint. Background Art

[0002] Shielded connectors are classified by material into two types: metal type and metal-plastic hybrid type. The function of shielded connectors needs to achieve the effect of locking and fixing cables, sealing and shielding. The existing ordinary shielded connectors have complex shielding mechanism design and often need to disassemble the connectors for installation. The production cost is high, the labor cost for installation is high, and the user end often has to consider the complexity of installation and use, which increases the training cost and fault tolerance cost. Utility Model Content

[0003] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a shielded cable waterproof connector.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0005] Shielded cable waterproof connector, including an aluminum alloy pressure ring pre-pressed directly outside the cable shielding layer;

[0006] The outer ring of the aluminum alloy pressure ring is sleeved with a metal joint, and the gap between the aluminum alloy pressure ring and the metal joint is connected to an annular spring;

[0007] The outer ring of the metal joint is threadedly connected to a nut, the inner ring of the metal joint is plugged into a sealing core, the sealing core is provided with a through hole for passing the cable, and the nut applies pressure to the sealing core, forcing the sealing core to squeeze the cable in the through hole.

[0008] It is further defined that the outer ring of the metal joint is sleeved with an O-shaped rubber sealing ring. With such a structural design, when the metal joint is assembled with the chassis, the O-shaped rubber sealing ring is used to seal the gap between the metal joint and the chassis.

[0009] It is further defined that the outer ring of the metal joint is provided with threads for connecting with the nut and for fixing itself, and the O-ring rubber sealing ring is squeezed by the metal joint after screwing and installation. With such a structural design, the threads of the outer ring of the metal joint are used to realize the installation of the metal joint on the chassis, and the threaded connection can change the position of the metal joint, thereby causing the metal joint to squeeze the O-ring rubber sealing ring to achieve sealing.

[0010] It is further defined that the outer ring of the aluminum alloy pressure ring is provided with an annular groove for accommodating an annular spring. With such a structural design, the annular groove is used to accommodate the annular spring, thereby increasing the contact area with the annular spring and providing a certain limiting function, thereby improving the stability of the annular spring installed on the outer ring of the aluminum alloy pressure ring.

[0011] It is further defined that the inner ring of the metal joint is provided with a positioning ring, the upper surface of the positioning ring is in contact with the sealing core, and the lower surface of the positioning ring is in contact with the aluminum alloy pressure ring. With such a structural design, the positioning ring can limit the positions of the sealing core and the aluminum alloy pressure ring in the metal joint.

[0012] The beneficial effects of the utility model: the utility model has a simple structure and stable sealing performance, and is convenient for workers to quickly install and disassemble. The aluminum alloy pressure ring is pre-pressed onto the customer's cable to replace the customer's hexagonal pressure ring accessories, reducing the number of parts, reducing the overall cost, and reducing the overall weight of the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0014] Figure 1 This is a schematic structural diagram of an embodiment of a shielded cable waterproof connector of the utility model;

[0015] The main component symbols are described as follows:

[0016] 1. Nut;

[0017] 2. Sealing core;

[0018] 3. Metal joints;

[0019] 4. Aluminum alloy pressure ring;

[0020] 5. Ring spring;

[0021] 6. O-ring rubber seal. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, the shielded cable waterproof connector of the utility model comprises an aluminum alloy pressing ring 4 which is directly pre-pressed outside the cable shielding layer;

[0024] The outer ring of the aluminum alloy pressing ring 4 is sleeved with the metal joint 3, and the gap between the aluminum alloy pressing ring 4 and the metal joint 3 is connected with the annular spring 5;

[0025] The outer circle of the metal joint 3 is threadedly connected to the nut 1, and the inner circle of the metal joint 3 is inserted into the sealing core 2. The sealing core 2 is provided with a through hole for passing the cable. The nut 1 applies pressure to the sealing core 2, forcing the sealing core 2 to squeeze the cable in the through hole.

[0026] In this embodiment:

[0027] The cable is stripped according to the standard process size, and the shielding layer is exposed. The aluminum alloy pressing ring 4 is pre-crimped on the outer ring of the cable shielding layer. During installation, the aluminum alloy pressing ring 4 cooperates with the annular spring 5 to be inserted into the metal joint 3. The limited space between the aluminum alloy pressing ring 4 and the metal joint 3 causes the annular spring 5 to be compressed, ensuring the conductive contact between the aluminum alloy pressing ring 4 and the metal joint 3. The annular track of the annular spring 5 enables the aluminum alloy pressing ring 4 and the metal joint 3 to have a longer conductive contact surface, which can be used to adjust the process error.

[0028] The metal joint 3 is installed with the chassis through threads to achieve conductive grounding, thereby completely shielding the electromagnetic field generated when the high-voltage current passes through, preventing the strong electromagnetic field from damaging the internal components. The structure on the chassis supports the aluminum alloy pressure ring 4 and fixes the installation position of the aluminum alloy pressure ring 4;

[0029] After the cable passes through the sealing core 2, the nut 1 on the metal joint 3 provides a pressing force to squeeze and deform the sealing core 2 to seal the gap, and the sealing core 2 is pressed tightly against the cable sheath, so that the cable is fixed, has a certain anchoring force, and maintains the sealing performance;

[0030] In summary, the utility model has a simple structure and stable sealing performance, and is convenient for workers to quickly install and disassemble. The aluminum alloy pressure ring 4 is pre-pressed onto the customer's cable to replace the customer's hexagonal pressure ring accessories, reducing the number of parts, reducing the overall cost, and reducing the overall weight of the joint.

[0031] Preferably, the outer ring of the metal joint 3 is sleeved with an O-shaped rubber sealing ring 6. With this structural design, when the metal joint 3 is assembled with the chassis, the O-shaped rubber sealing ring 6 is used to seal the gap between the metal joint 3 and the chassis. In fact, other sealing structures between the metal joint 3 and the assembly surface can also be considered according to specific circumstances.

[0032] Preferably, the outer ring of the metal joint 3 is provided with threads for connecting with the nut 1 and for fixing itself, and the O-shaped rubber sealing ring 6 is squeezed by the metal joint 3 after screwing and installation. With such a structural design, the threads of the outer ring of the metal joint 3 are used to realize the installation of the metal joint 3 on the chassis, and the threaded connection can change the position of the metal joint 3, thereby making the metal joint 3 squeeze the O-shaped rubber sealing ring 6 to achieve sealing. In fact, other fixing structures of the metal joint 3 can also be considered according to specific circumstances.

[0033] Preferably, the outer ring of the aluminum alloy pressure ring 4 is provided with an annular groove for accommodating the annular spring 5. With such a structural design, the annular groove is used to accommodate the annular spring 5, thereby increasing the contact area with the annular spring 5 and providing a certain limiting function, thereby improving the stability of the installation of the annular spring 5 on the outer ring of the aluminum alloy pressure ring 4. In fact, other structural shapes that improve the installation stability of the annular spring 5 can also be considered according to specific circumstances.

[0034] Preferably, the inner ring of the metal joint 3 is provided with a positioning ring, the upper surface of the positioning ring contacts the sealing core 2, and the lower surface of the positioning ring contacts the aluminum alloy pressure ring 4. With such a structural design, the positioning ring can limit the positions of the sealing core 2 and the aluminum alloy pressure ring 4 in the metal joint 3. In fact, other positioning structures can also be considered according to specific circumstances.

[0035] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. Shielded cable waterproof connector, characterized by: It includes an aluminum alloy pressing ring (4) directly pre-pressed outside the cable shielding layer; The outer ring of the aluminum alloy pressure ring (4) is sleeved with the metal joint (3), and the gap between the aluminum alloy pressure ring (4) and the metal joint (3) is connected to the annular spring (5); The outer ring of the metal joint (3) is threadedly connected to the nut (1), and the inner ring of the metal joint (3) is inserted into the sealing core (2). The sealing core (2) is provided with a through hole for passing the cable. The nut (1) applies pressure to the sealing core (2), forcing the sealing core (2) to squeeze the cable in the through hole.

2. The shielded cable waterproof connector according to claim 1, characterized in that: The outer ring of the metal joint (3) is sleeved with an O-shaped rubber sealing ring (6).

3. The shielded cable waterproof connector according to claim 2, characterized in that: The outer ring of the metal joint (3) is provided with threads for connecting with the nut (1) and for fixing itself, and the O-shaped rubber sealing ring (6) is squeezed by the metal joint (3) after being screwed and installed.

4. The shielded cable waterproof connector according to claim 1, characterized in that: The outer ring of the aluminum alloy pressure ring (4) is provided with an annular groove for accommodating the annular spring (5).

5. The shielded cable waterproof connector according to claim 1, characterized in that: The inner ring of the metal joint (3) is provided with a positioning ring, the upper surface of the positioning ring contacts the sealing core (2), and the lower surface of the positioning ring contacts the aluminum alloy pressure ring (4).

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