Waterproof connection assembly for cable joint

Abstract

The utility model discloses a waterproof connection assembly for cable joint relates to cable installation technical field. The waterproof connection assembly for cable joint, including the joint connecting piece, the joint connecting piece side fixedly connected with the base, is fixedly installed with the humidity transducer on the base, and the base inside is provided with multilayer waterproof assembly, multilayer waterproof assembly includes: main connecting sleeve, locking sleeve, dog, cable, pin shaft, arc block, sealing ring, heating shrink seal sleeve pipe, metal shield ring. The waterproof connection assembly for cable joint provides the buffer time for maintenance operation, reduces the risk of sudden failure, and the whole set of device realizes the overall promotion of waterproof performance, mechanical reliability, electrical stability and maintenance convenience through the synergistic effect of mechanical clamping, multilayer sealing, colloid protection and intelligent monitoring, is applicable to the scene such as outdoor, humid industrial environment and the scene of strict waterproof requirement, provides efficient, safe, intelligent solution.

Description

Technical Field

[0001] This utility model relates to the field of cable installation technology, and in particular to a waterproof connection component for cable joints. Background Technology

[0002] In the field of cable connection technology, reliable waterproof performance is the key to ensuring the stable operation of power and communication systems. However, traditional cable joints have significant defects in waterproof design, installation and maintenance, and functional adaptation, making it difficult to meet the high reliability requirements of modern complex working conditions.

[0003] Traditional joints have simple sealing structures, often relying on a single sealing ring or gasket, which cannot form a multi-dimensional protection system. Moisture can easily seep in through the thread gaps and the mating points between the cable sheath and the joint, leading to insulation aging, core wire corrosion, and even short circuits. Especially in long-term humid or water-immersed environments, the risk of seal failure increases significantly. During installation, they have poor adaptability to cable outer diameter tolerances, often requiring manual grinding or customized processing, which is cumbersome and easily damages the cable insulation layer. The installation efficiency is low and the reliability is difficult to guarantee.

[0004] The lack of an effective condition monitoring and early warning mechanism makes it impossible to detect changes in temperature and humidity inside the joint in real time. When problems such as aging of the sealing ring and failure of the gasket occur, it is difficult to detect and deal with them in advance, which often leads to the expansion of the fault, increases downtime maintenance costs and safety risks. At the same time, traditional joints have single functions and insufficient electromagnetic shielding capabilities. They are easily interfered with in strong electromagnetic environments, affecting the quality of signal transmission. The lack of explosion-proof design makes them unable to meet the usage requirements of flammable and explosive scenarios, thus limiting their application scenarios.

[0005] These technical bottlenecks result in low reliability and high failure rate of traditional cable joints in scenarios such as outdoor power transmission, underground pipe corridors, and humid industrial environments. They cannot meet the requirements of high-end equipment for long-term stable operation, nor can they adapt to the development trend of intelligent and unmanned maintenance. Utility Model Content

[0006] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a waterproof connection component for cable joints, which can solve the problem of sealing and waterproofing cable connections.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A waterproof connection assembly for cable connectors includes a connector connector, a base is fixedly connected to the side of the connector connector, a temperature and humidity sensor is fixedly installed on the base, and a multi-layer waterproof assembly is provided inside the base.

[0009] The multi-layer waterproof component includes: main connecting sleeve, locking sleeve, claw, cable, pin, arc block, sealing ring, heat shrinkable sealing sleeve, metal shielding ring, third sealing gasket, second sealing gasket, and first sealing gasket.

[0010] Preferably, the cable is fixedly connected to the connector.

[0011] The heat-shrinkable sealing sleeve is fitted onto the cable connection, and the metal shielding ring is fitted onto the heat-shrinkable sealing sleeve.

[0012] Preferably, the main connecting sleeve is threaded inside the base, and the first sealing gasket is fitted onto the tail of the main connecting sleeve and fits tightly against the outside of the base.

[0013] Preferably, the second sealing gasket is located at the head of the main connecting sleeve and fits tightly against the inside of the base;

[0014] The third sealing gasket is tightly fitted to the metal shielding ring and the main connecting sleeve on its two sides, respectively.

[0015] Preferably, the sealing ring is fitted onto the cable and located outside the main connecting sleeve, and the sealing ring is double-lip type.

[0016] Preferably, the arc-shaped block is fixedly installed on the outside of the main connecting sleeve, and the three-lobed claw is rotatably installed on the arc-shaped block via a pin.

[0017] The locking sleeve is fitted onto the three-lobed jaws.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] (1) The waterproof connection component used in this cable connector has a temperature and humidity sensor on the base that monitors the internal environment of the connector in real time. It forms a closed loop with the multi-layer sealing structure. Even if a single sealing component is slightly aged, other sealing layers can still temporarily block moisture intrusion, providing a buffer time for maintenance operations and reducing the risk of sudden failures. The whole device achieves a comprehensive improvement in waterproof performance, mechanical reliability, electrical stability and maintenance convenience through the synergistic effect of mechanical clamping, multi-layer sealing, colloidal protection and intelligent monitoring. It is suitable for outdoor, humid industrial environments and other scenarios with strict waterproof requirements, providing an efficient, safe and intelligent solution.

[0020] (2) The waterproof connection component used in this cable joint forms three axial sealing lines between the base and the main connecting sleeve through the first sealing gasket, the second sealing gasket and the third sealing gasket. Combined with the radial seal formed by the double-lip silicone rubber sealing ring on the outside of the cable, a multi-dimensional waterproof system is constructed, which effectively blocks moisture from entering through the thread gap, the cable surface and other paths, and significantly improves the sealing performance and durability of the joint in a humid environment.

[0021] (3) The waterproof connection component used in this cable joint has a three-lobed claw that can quickly clamp the cable under the drive of the locking sleeve through the cooperation of the pin shaft and the arc block. This achieves synchronous linkage between the mechanical fixing and sealing process, avoiding the sealing deviation caused by the step-by-step operation of the traditional structure. At the same time, it adapts to the outer diameter tolerance of the cable, improving the ease of installation and adaptability. The setting of the heat shrinkable sealing sleeve and the metal shielding ring not only achieves the glue seal by filling the connection of the cable core wire with hot melt adhesive to ensure electrical insulation performance, but also enhances the electromagnetic shielding effect by the tight fit between the metal shielding ring and the cable shielding layer, meeting the stable transmission requirements in complex electromagnetic environments. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 This is a schematic diagram of the waterproof connection assembly for the cable connector of this utility model;

[0024] Figure 2 This is a schematic diagram of the waterproof connection component for the cable connector of this utility model;

[0025] Figure 3 This is a cross-sectional schematic diagram of the waterproof connection component for cable connectors according to this utility model;

[0026] Figure 4 This utility model Figure 3 Enlarged diagram of point A.

[0027] Reference numerals: 1. Connector; 2. Base; 3. Temperature and humidity sensor; 4. Main connecting sleeve; 5. Locking sleeve; 6. Claw; 7. Cable; 8. Pin; 9. Arc-shaped block; 10. Sealing ring; 11. Heat shrinkable sealing sleeve; 12. Metal shielding ring; 13. Third sealing gasket; 14. Second sealing gasket; 15. First sealing gasket. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are 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.

[0030] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Please see Figure 1-4 This utility model provides a technical solution: a waterproof connection component for cable connectors, including a connector connector 1, a base 2 fixedly connected to the side of the connector connector 1, a temperature and humidity sensor 3 fixedly installed on the base 2, and a multi-layer waterproof component inside the base 2.

[0033] Temperature and humidity sensor 3 monitors environmental parameters in real time and provides early warning; multi-layer waterproof components are treated with multi-level waterproofing at the joints.

[0034] The multi-layer waterproof component includes: main connecting sleeve 4, locking sleeve 5, claw 6, cable 7, pin shaft 8, arc block 9, sealing ring 10, heat shrink sealing sleeve 11, metal shielding ring 12, third sealing gasket 13, second sealing gasket 14, and first sealing gasket 15.

[0035] Cable 7 is fixedly connected to connector 1, heat shrinkable sealing sleeve 11 is sleeved on the connection of cable 7, and metal shielding ring 12 is sleeved on heat shrinkable sealing sleeve 11.

[0036] One end of the cable 7 is fixedly connected to the connector 1. A heat-shrinkable sealing sleeve 11 is fitted at the connection of the cable 7. The metal shielding ring 12 is simultaneously fitted on the outside of the heat-shrinkable sealing sleeve 11 to ensure a tight fit with the shielding layer of the cable 7.

[0037] The main connecting sleeve 4 is threaded inside the base 2, and the first sealing gasket 15 is fitted onto the tail of the main connecting sleeve 4 and fits tightly against the outside of the base 2.

[0038] The second sealing gasket 14 is located at the head of the main connecting sleeve 4 and is tightly fitted to the inside of the base 2. The two sides of the third sealing gasket 13 are tightly fitted to the metal shielding ring 12 and the main connecting sleeve 4, respectively.

[0039] The main connecting sleeve 4 is screwed into the base 2 through threads. The first sealing gasket 15 at its tail is tightly fitted to the outside of the base 2, and the second sealing gasket 14 at its head is tightly fitted to the inside of the base 2, forming an initial sealing barrier between the base 2 and the main connecting sleeve 4 to prevent moisture from entering through the connection gap. The metal shielding ring 12 is tightly fitted to the main connecting sleeve 4 through the third sealing gasket 13. The two sides of the third sealing gasket 13 are tightly fitted to the metal shielding ring 12 and the end face of the main connecting sleeve 4, respectively. Together with the second sealing gasket 14 and the first sealing gasket 15, three axial sealing lines are formed at the head, tail and middle of the main connecting sleeve 4 to block moisture from penetrating along the threaded gap between the main connecting sleeve 4 and the base 2.

[0040] The sealing ring 10 is sleeved on the cable 7 and located on the outside of the main connecting sleeve 4. The sealing ring 10 is double-lip type.

[0041] The arc-shaped block 9 is fixedly installed on the outside of the main connecting sleeve 4, and the three-lobed claw 6 is rotatably installed on the arc-shaped block 9 through the pin 8; the locking sleeve 5 is sleeved on the three-lobed claw 6;

[0042] The arc-shaped block 9 is fixedly installed on the outside of the main connecting sleeve 4. The three-lobed claws 6 are rotatably installed on the arc-shaped block 9 through the pin 8, and are distributed around the cable 7. The locking sleeve 5 is put on from the outside of the claws 6. The locking sleeve 5 is rotated clockwise. The guide structure on its inner wall drives the claws 6 to rotate around the pin 8 towards the center. The inner side of the three-lobed claws 6 gradually clamps the insulation layer of the cable 7, realizing the mechanical fixation of the cable 7. At this time, the sealing ring 10 sleeved on the cable 7 is squeezed by the claws 6 and the stepped structure on the outside of the main connecting sleeve 4. The inner lip of the sealing ring 10 is tightly attached to the surface of the cable 7, and the outer lip is pressed against the inner wall of the claws 6, forming a radial seal against the periphery of the cable 7, preventing moisture from seeping in along the surface of the cable 7.

[0043] Working principle: When in use, the cable 7 is fixed on the connector 1, the heat shrinkable sealing sleeve 11 and the metal shielding ring 12 are fitted, the main connecting sleeve 4 is screwed into the base 2, and the first sealing gasket 15, the second sealing gasket 14 and the third sealing gasket 13 form an axial three-line sealing defense. The sealing ring 10 is fitted on the cable 7 and located outside the main connecting sleeve 4. The arc block 9 is fixed on the outside of the main connecting sleeve 4. The three-lobed claw 6 is rotatably installed on the arc block 9 through the pin 8. The locking sleeve 5 is fitted in and rotated, driving the claw 6 to rotate around the pin 8 towards the center to clamp the cable 7, and squeeze the sealing ring 10 to form a radial seal. The temperature and humidity sensor 3 monitors the environmental parameters in real time to achieve waterproof and reliable connection.

[0044] The base 2 and the main connecting sleeve 4 form three axial sealing defenses through the first sealing gasket 15, the second sealing gasket 14 and the third sealing gasket 13. Together with the radial seal formed by the double-lip silicone rubber sealing ring 10 around the cable 7, a multi-dimensional waterproof system is constructed, which effectively blocks moisture from entering through the thread gap, the surface of the cable 7 and other paths, and significantly improves the sealing performance and durability of the joint in a humid environment.

[0045] The three-lobed claw 6, through the cooperation of the pin 8 and the arc-shaped block 9, can quickly clamp the cable 7 under the drive of the locking sleeve 5, realizing the synchronous linkage of mechanical fixing and sealing processes, avoiding the sealing deviation caused by the step-by-step operation of the traditional structure, while adapting to the outer diameter tolerance of the cable 7, improving the ease of installation and adaptability. The setting of the heat-shrinkable sealing sleeve 11 and the metal shielding ring 12 not only achieves the glue seal at the connection of the cable 7 core wires by filling the hot melt adhesive to ensure electrical insulation performance, but also enhances the electromagnetic shielding effect through the tight fit between the metal shielding ring 12 and the shielding layer of the cable 7, meeting the stable transmission requirements in complex electromagnetic environments;

[0046] The temperature and humidity sensor 3 on the base 2 monitors the internal environment of the connector in real time, forming a closed loop with the multi-layer sealing structure. Even if a single sealing component shows slight aging, other sealing layers can still temporarily block moisture intrusion, providing a buffer time for maintenance operations and reducing the risk of sudden failures. The entire device achieves a comprehensive improvement in waterproof performance, mechanical reliability, electrical stability, and maintenance convenience through the synergistic effect of mechanical clamping, multi-layer sealing, colloidal protection, and intelligent monitoring. It is suitable for outdoor, humid industrial environments, and other scenarios with stringent waterproof requirements, providing an efficient, safe, and intelligent solution.

[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A waterproof connection assembly for cable joints, comprising a joint connector (1), characterized in that: The connector (1) is fixedly connected to a base (2) on its side. A temperature and humidity sensor (3) is fixedly installed on the base (2). The base (2) is equipped with a multi-layer waterproof component. The multi-layer waterproof component includes: main connecting sleeve (4), locking sleeve (5), claw (6), cable (7), pin (8), arc block (9), sealing ring (10), heat shrink sealing sleeve (11), metal shielding ring (12), third sealing gasket (13), second sealing gasket (14), and first sealing gasket (15).

2. The waterproof connection assembly for cable joints according to claim 1, characterized in that: The cable (7) is fixedly connected to the connector (1); The heat-shrinkable sealing sleeve (11) is fitted onto the connection of the cable (7), and the metal shielding ring (12) is fitted onto the heat-shrinkable sealing sleeve (11).

3. The waterproof connection assembly for cable joints according to claim 2, characterized in that: The main connecting sleeve (4) is threaded inside the base (2), and the first sealing gasket (15) is fitted on the tail of the main connecting sleeve (4) and fits tightly against the outside of the base (2).

4. The waterproof connection assembly for cable joints according to claim 3, characterized in that: The second sealing gasket (14) is located at the head of the main connecting sleeve (4) and is tightly fitted to the inside of the base (2); The two sides of the third sealing gasket (13) are tightly fitted to the metal shielding ring (12) and the main connecting sleeve (4), respectively.

5. The waterproof connection assembly for cable joints according to claim 4, characterized in that: The sealing ring (10) is sleeved on the cable (7) and located on the outside of the main connecting sleeve (4). The sealing ring (10) is double-lip type.

6. The waterproof connection assembly for cable joints according to claim 5, characterized in that: The arc-shaped block (9) is fixedly installed on the outside of the main connecting sleeve (4), and the three-lobed claw (6) is rotatably installed on the arc-shaped block (9) through the pin (8); The locking sleeve (5) is fitted onto the three-lobed claw (6).

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