Waterproof electric wire

Abstract

The utility model relates to the technical field of electric wires, in particular to a waterproof electric wire, which comprises a first connecting part and a second connecting part, the second connecting part comprises a second insulator, and a sealing seat inserted into the sealing cavity is coaxially fixed at the rear end of the second insulator; a plurality of waterproof barriers are formed through close fit of the sealing edges of the sealing piece and the grooves of the sealing seat and insertion connection of the sealing rings and the double sealing grooves, and the splicing gap of the connector is completely filled; meanwhile, a multi-layer protection structure of the insulating layer, the filling layer, the waterproof layer and the wear-resistant layer of the waterproof wire body and the waterproof design of the joint are in synergistic effect, so that full-link waterproof of the wire from the wire body to the joint is realized; the design effectively prevents conductor corrosion and insulation layer failure, ensures long-term stable operation of an electrical system in complex environments such as humid, underground and underwater environments, and effectively solves the waterproof problem of the wire joint.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric wire, concretely is a waterproof electric wire. BACKGROUND

[0002] With the rapid development of the fields of building, water conservancy, ship and the like, the application of electric wire in special environments such as humidity and underwater is more and more extensive, and higher requirements are put forward for the waterproof performance thereof. When the traditional electric wire faces high humidity, immersion and the like, the insulation performance is easily affected, not only the service life is shortened, but also safety accidents can be caused. Therefore, it is crucial to improve the waterproof performance of the electric wire.

[0003] The utility model discloses a waterproof electric wire, the waterproof electric wire includes the core, the oxygen barrier layer is fixedly covered to the core outer wall, the insulating sleeve is fixedly covered to the oxygen barrier layer outer wall, the fireproof sleeve is fixedly covered to the insulating sleeve outer wall, the waterproof layer is fixedly covered to the fireproof sleeve outer wall, the protection assembly is fixedly covered to the waterproof layer outer wall, the protection assembly includes the armored sleeve, the armored sleeve outer wall is equipped with a plurality of wear -resisting rubber blocks, is used for playing wear -resisting effect at the armored sleeve outer wall, and the wear -resisting rubber block between a plurality of material grooves is formed. The utility model discloses waterproof effect is played through the waterproof film installation on the core outer wall, and the armored sleeve and a plurality of wear -resisting rubber blocks of waterproof film outer wall can play wear -resisting, buffering effect on the waterproof film outside, avoid the wear and tear of waterproof film and leak, and the smell of the rodent repellent stored in a plurality of material grooves is emitted to the air through the non - woven fabric, can avoid the mouse tearing non - woven fabric and wear -resisting rubber block, thereby prolonging the service life of non - woven fabric and wear -resisting rubber block.

[0004] Although the waterproof electric wire plays the waterproof effect through the waterproof film installation, the device still has the following problems in the actual application process: the device can only improve the waterproof performance of itself, but in the actual humid environment, underground laying, underwater operation and the like, affected by the length requirement of the cable and the complex laying environment, the electric wire cable often needs to be connected through the joint. Since there is a structural splicing gap at the joint, the conventional waterproof measures are difficult to form effective sealing, even if the line body itself has good waterproof performance, water can still penetrate through the joint, leading to conductor corrosion, insulation layer failure, and causing safety hazards such as short circuit and electric leakage. Therefore, it is crucial to solve the waterproof technology problem of the electric wire joint and improve the overall waterproof reliability of the electric wire cable in the complex environment, which is the key to guarantee the stable operation of the electrical system. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a waterproof electric wire to solve the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A waterproof electric wire comprises:

[0008] The first connecting part includes a first insulator. A fixing seat is coaxially fixed to the front end of the first insulator. A sealing cavity is formed at the front end of the fixing seat. An installation groove is formed on the inner wall of the sealing cavity. A first sealing groove is also formed on the outer side of the fixing seat at the sealing cavity. A ring-shaped sealing element is embedded in the installation groove. Multiple sealing ridges are fixed on the inner circumference of the sealing element. The front end face of each sealing ridge is formed with an inclined bevel. A conductive plug is coaxially fixed to the rear end of the sealing cavity.

[0009] The second connecting part includes a second insulator. A sealing seat that is inserted into the sealing cavity is coaxially fixed to the rear end of the second insulator. The outer wall of the sealing seat has multiple grooves, and the sealing ridge is inserted into the corresponding grooves. A fixing ring is fixed to the outer wall of the sealing seat near the front side. Sealing rings are coaxially fixed to both the front and rear walls of the fixing ring, and the rear sealing ring is inserted into the first sealing groove. A mounting hole is opened at the rear end of the sealing seat. A conductive sleeve is embedded in the mounting hole, and a conductive plug is inserted into the conductive sleeve.

[0010] Two waterproof wire bodies are fixed to the rear end of the first insulator and the front end of the second insulator, respectively; each includes a conductor, and the conductors on the front and rear sides are electrically connected to the conductive plug and the conductive sleeve, respectively.

[0011] As a preferred technical solution of this utility model, the sealing element and the sealing ridge are integrally formed structures, and the sealing element and the sealing ridge are made of rubber.

[0012] In this design, the one-piece molding and the use of rubber material improve the sealing of the connection structure.

[0013] As a preferred technical solution of this utility model, both the first insulator and the second insulator have channels inside, the conductor passes through the corresponding channels, and the connection between the conductor and the channel is coated with sealant.

[0014] In this configuration, the application of sealant increases the tightness of the connection between the conductor and the first and second insulators.

[0015] As a preferred technical solution of this utility model, the first insulator and the fixing seat are integrally formed, and the second insulator, the sealing seat fixing ring and the sealing ring are integrally formed;

[0016] This design avoids waterproofing failure caused by loosening of components due to long-term use or external forces, and enhances the stability of the wire connection.

[0017] As a preferred embodiment of this utility model, the outer diameter of the fixing ring is larger than the outer diameter of the sealing seat, and the width of the fixing ring is 3-8mm;

[0018] In this design, the rear sealing ring and the first sealing groove are more tightly fitted, further enhancing the waterproof effect.

[0019] As a preferred technical solution of this utility model, a first threaded groove is provided at the front end of the outer wall of the fixed seat; a second threaded groove is provided at the front end of the outer wall of the sealing seat; a connecting sleeve is provided outside the sealing seat, and a threaded cavity is provided at the rear end of the connecting sleeve, and the threaded cavity is threadedly connected to the first threaded groove; a threaded ring is coaxially fixed at the front end of the connecting sleeve, and the threaded ring is threadedly connected to the second threaded groove.

[0020] In this configuration, the threaded connection further enhances the tightness of the connection between the first connecting part 1 and the second connecting part 2.

[0021] As a preferred technical solution of this utility model, a second sealing groove is provided at the front end of the threaded cavity, and the sealing ring on the front side is inserted into the second sealing groove.

[0022] This setup creates an additional sealing barrier on top of the threaded connection, improving waterproofing.

[0023] As a preferred technical solution of this utility model, the conductor is provided with an insulating layer, the insulating layer is provided with a filling layer, the filling layer is provided with a waterproof layer, and the waterproof layer is provided with a wear-resistant layer.

[0024] This design, with its multi-layered protection working synergistically, not only enhances the waterproof performance of the wire itself but also extends its service life.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0026] 1. By tightly fitting the sealing ridges of the sealing element with the grooves of the sealing seat, and combining the sealing ring with the double sealing grooves, multiple waterproof barriers are formed to completely fill the joint gaps. At the same time, the multi-layered protective structure of the waterproof conductor body, consisting of insulation, filling, waterproofing, and wear-resistant layers, works synergistically with the waterproof design of the joint to achieve end-to-end waterproofing of the wire from the conductor to the joint. This design, through the joint sealing structure and multi-layered protection system, effectively prevents conductor corrosion and insulation failure, ensuring the long-term stable operation of the electrical system in complex environments such as damp, underground, and underwater conditions, effectively solving the problem of waterproofing wire joints.

[0027] 2. At the same time, key components adopt an integrated molding process, such as the rubber seal and sealing ridge being integrally molded, as well as the first insulator and fixing seat, the second insulator and sealing seat being integrally molded, which greatly reduces component gaps and enhances sealing reliability. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall exploded structure of this utility model;

[0029] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0030] Figure 3 This is a cross-sectional view of the first connecting part in this utility model;

[0031] Figure 4 This is a cross-sectional view of the sealing element in this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the second connecting part in this utility model;

[0033] Figure 6 This is a cross-sectional view of the waterproof wire body in this utility model;

[0034] In the picture:

[0035] 1. First connecting part; 10. First insulator; 11. Fixing base; 110. First threaded groove; 111. Mounting groove; 112. Sealing cavity; 113. First sealing groove; 12. Conductive plug; 13. Sealing element; 14. Sealing ridge; 140. Bevel;

[0036] 2. Second connecting part; 20. Second insulator; 21. Sealing seat; 210. Groove; 211. Second threaded groove; 22. Conductive sleeve; 23. Connecting sleeve; 230. Threaded ring; 24. Fixing ring; 240. Sealing ring;

[0037] 3. Waterproof conductor body; 30. Conductor; 31. Insulation layer; 32. Filler layer; 33. Waterproof layer; 34. Wear-resistant layer. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0039] This embodiment provides a technical solution:

[0040] Please see Figures 1-4As shown, a waterproof wire includes a first connecting part 1 and a first insulator 10. A fixing seat 11 is coaxially fixed to the front end of the first insulator 10. A sealing cavity 112 is formed at the front end of the fixing seat 11. An installation groove 111 is formed on the inner wall of the sealing cavity 112. A first sealing groove 113 is also formed on the outer side of the fixing seat 11 at the sealing cavity 112. A ring-shaped sealing element 13 is embedded in the installation groove 111. A plurality of sealing ridges 14 are fixed on the inner circumference of the sealing element 13. The front end face of each sealing ridge 14 is formed with an inclined slope 140. A conductive plug 12 is coaxially fixed to the rear end of the sealing cavity 112.

[0041] With the above configuration, by setting a fixing seat 11 at the front end of the first insulator 10 and opening a sealing cavity 112, a mounting groove 111, and a first sealing groove 113 inside it, a precise installation space is provided for the sealing element 13 and the conductive plug 12. The sealing element 13 in the mounting groove 111 cooperates with the sealing ridge 14 to form a plug-in sealing structure with the second connection part. The inclined slope 140 design facilitates automatic guidance and tight fit when the sealing seat 21 is inserted, effectively preventing moisture from entering from the connection part.

[0042] In this embodiment, the sealing element 13 and the sealing ridge 14 are integrally molded structures, and both are made of rubber. The use of integrally molded rubber material avoids gaps caused by splicing, ensuring the stability of the sealing structure during long-term use and significantly improving the waterproof performance and durability of the seal. Furthermore, utilizing the excellent elasticity and plasticity of rubber, it can tightly fill gaps when compressed, eliminating channels for moisture penetration.

[0043] Please see Figure 5 As shown, the second connecting part 2 includes a second insulator 20. A sealing seat 21 that is inserted into the sealing cavity 112 is coaxially fixed to the rear end of the second insulator 20. The outer wall of the sealing seat 21 has a plurality of grooves 210, and the sealing ridge 14 is inserted into the corresponding groove 210. A fixing ring 24 is fixed to the outer wall of the sealing seat 21 near the front side. Sealing rings 240 are coaxially fixed to both the front and rear walls of the fixing ring 24, and the sealing ring 240 on the rear side is inserted into the first sealing groove 113. A mounting hole is opened at the rear end of the sealing seat 21. A conductive sleeve 22 is embedded in the mounting hole, and the conductive plug 12 is inserted into the conductive sleeve 22.

[0044] With the above configuration, the sealing seat 21 at the rear end of the second insulator 20 is adapted to be inserted into the sealing cavity 112 of the first connection part, the outer wall groove 210 is tightly fitted with the sealing ridge 14, and the fixing ring 24 and the sealing rings 240 on the front and rear walls form a double seal with the first sealing groove 113 and the second sealing groove respectively, ensuring the waterproof performance of the connection; the insertion and cooperation of the conductive sleeve 22 and the conductive plug 12, while realizing circuit conduction, ensures the waterproof safety of the electrical connection through the multiple sealing structure.

[0045] In this embodiment, a second sealing groove is provided at the front end of the threaded cavity, and the front sealing ring 240 is inserted into the second sealing groove. During the tightening of the connecting sleeve 23, the elastic deformation of the sealing ring 240 tightly fits the sealing groove, effectively preventing moisture from entering along the thread gap, further enhancing the waterproof reliability of the joint, and is especially suitable for high-pressure and high-humidity environments.

[0046] In this embodiment, both the first insulator 10 and the second insulator 20 have channels inside, through which the conductor 30 passes. The connection between the conductor 30 and the channel is coated with sealant. The sealant fills the tiny gaps between the conductor 30 and the first insulator 10 and the second insulator 20, preventing moisture from penetrating into the conductor through the interior of the insulator. The sealant's adhesive and waterproof properties tightly bond with the insulator and conductor, forming a continuous waterproof barrier to ensure the safety of the electrical components inside the wire.

[0047] In this embodiment, the first insulator 10 and the fixing seat 11 are integrally formed structures, as are the second insulator 20, the sealing seat 21, the fixing ring 24, and the sealing ring 240. The integrally formed structure improves the overall structural strength and waterproof performance of the first connecting part 1 and the second connecting part.

[0048] In this embodiment, the outer diameter of the retaining ring 24 is larger than the outer diameter of the sealing seat 21, and the width of the retaining ring 24 is 3-8 mm. This design increases the sealing contact area with the retaining seat 11, making the insertion of the rear sealing ring 240 into the first sealing groove 113 more tight. The preferred width of the retaining ring 24 is 5 mm. This suitable width provides stable support for the sealing ring 240, preventing the sealing seat 21 from shifting during insertion and ensuring the consistency and reliability of the sealing effect.

[0049] In this embodiment, a first threaded groove 110 is formed at the front end of the outer wall of the fixing seat 11; a second threaded groove 211 is formed at the front end of the outer wall of the sealing seat 21; a connecting sleeve 23 is provided on the outside of the sealing seat 21, and a threaded cavity is formed at the rear end of the connecting sleeve 23, and the threaded cavity is threadedly connected to the first threaded groove 110; a threaded ring 230 is coaxially fixed at the front end of the connecting sleeve 23, and the threaded ring 230 is threadedly connected to the second threaded groove 211. The threaded structure provides a large tightening force, so that the joint remains stable when subjected to external force pulling or vibration; the cooperation between the threaded cavity and the first threaded groove 110, and the threaded ring 230 and the second threaded groove 211, not only realizes the mechanical connection, but also forms a combined seal with the sealing ring and the sealing groove, effectively preventing moisture from leaking from the connection part.

[0050] Please see Figure 6As shown, two waterproof wire bodies 3 are fixed to the rear end of the first insulator 10 and the front end of the second insulator 20, respectively; each includes a conductor 30, with the conductors 30 on both the front and rear sides electrically connected to the conductive plug 12 and the conductive sleeve 22, respectively. An insulation layer 31 is fitted over the conductor 30, a filler layer 32 is fitted over the insulation layer 31, a waterproof layer 33 is fitted over the filler layer 32, and a wear-resistant layer 34 is fitted over the waterproof layer 33. The insulation layer 31 ensures electrical insulation safety, the filler layer 32 eliminates internal gaps to prevent moisture accumulation, the waterproof layer 33 isolates external moisture, and the wear-resistant layer 34 resists external friction and mechanical damage. This multi-layered protection works synergistically, not only improving the waterproof performance of the wire body but also extending the service life of the wire, making it suitable for complex environmental applications.

[0051] With the above setup, the conductor 30 is fixed to the rear end of the first insulator 10 and the second insulator 20 respectively, realizing the wire connection function. At the same time, the conductor 30 is electrically connected to the conductive plug 12 and the conductive sleeve 22 to ensure the stability of current transmission. This connection method, together with the sealing structure of the front and rear connecting parts, makes the entire wire form a complete waterproof system from the wire body to the connector.

[0052] It is understood that in this embodiment, the conductor 30 is made of multi-strand stranded high-purity oxygen-free copper or aluminum alloy, and tin-plated to enhance oxidation resistance and ensure efficient and stable conductivity; the insulation layer 31 is made of cross-linked polyethylene or polyvinyl chloride to achieve reliable insulation and flame retardancy; the filling layer 32 uses alkali-free glass fiber, aramid fiber or waterproof sealant to stabilize the internal structure and prevent moisture penetration; the waterproof layer 33 is made of butyl rubber, thermoplastic polyurethane elastomer or waterproof and breathable membrane composite material to isolate water vapor and adapt to pressure changes; the wear-resistant layer 34 is made of polyurethane, neoprene rubber or polyamide to resist external wear. Through the synergistic effect of each layer, the wire is guaranteed to be safe and durable in complex environments.

[0053] In practical use, the fixing seat 11 of the first connecting part 1 is first threadedly connected to the threaded cavity at the rear end of the connecting sleeve 23 through the first threaded groove 110. The sealing seat 21 of the second connecting part 2 is threadedly connected to the threaded ring 230 at the front end of the connecting sleeve 23 through the second threaded groove 211 to achieve mechanical fastening. At this time, the sealing seat 21 of the second connecting part 2 is inserted into the sealing cavity 112 and precisely fitted with the sealing ridge 14 on the inner circumference of the sealing element 13. At the same time, the sealing rings 240 on the front and rear walls of the fixing ring 24 are tightly inserted into the first sealing groove 113 and the second sealing groove, respectively, forming a multi-seal structure to prevent moisture from entering from the outside of the joint. Meanwhile, the conductive plug 12 and the conductive sleeve 22 are inserted to achieve circuit conduction, and the insertion point is located inside the sealing cavity 112, which, together with the external sealing structure, ensures the waterproofness of the electrical connection point.

[0054] Meanwhile, the multi-layer protective structure of the waterproof conductor body 3, consisting of insulation layer 31, filling layer 32, waterproof layer 33, and wear-resistant layer 34, works synergistically to form a complete and efficient waterproof system from the conductor body to the connector, ensuring stable operation in complex environments.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof electrical wire, characterized in that, include: The first connecting part (1) includes a first insulator (10), a fixing seat (11) is coaxially fixed at the front end of the first insulator (10), a sealing cavity (112) is opened at the front end of the fixing seat (11), an installation groove (111) is opened on the inner wall of the sealing cavity (112), and a first sealing groove (113) is also opened on the outer side of the fixing seat (11) outside the sealing cavity (112); a ring-shaped sealing element (13) is embedded in the installation groove (111), a plurality of sealing ridges (14) are fixed on the inner circumference of the sealing element (13), and an inclined slope (140) is opened on the front end face of each sealing ridge (14); a conductive plug (12) is coaxially fixed at the rear end of the sealing cavity (112). The second connecting part (2) includes a second insulator (20). A sealing seat (21) that is inserted into the sealing cavity (112) is coaxially fixed at the rear end of the second insulator (20). The outer wall of the sealing seat (21) is provided with a plurality of grooves (210). The sealing ridge (14) is inserted into the corresponding groove (210). A fixing ring (24) is fixed near the front side of the outer wall of the sealing seat (21). The front and rear walls of the fixing ring (24) are both coaxially fixed with sealing rings (240). The sealing ring (240) on the rear side is inserted into the first sealing groove (113). The rear end of the sealing seat (21) is provided with an installation hole. A conductive sleeve (22) is embedded in the installation hole. The conductive plug (12) is inserted into the conductive sleeve (22). Two waterproof wire bodies (3) are fixed to the rear end of the first insulator (10) and the front end of the second insulator (20), respectively; It includes a conductor (30), and the conductors (30) on the front and rear sides are electrically connected to the conductive plug (12) and the conductive sleeve (22), respectively.

2. The waterproof wire according to claim 1, characterized in that: The sealing element (13) and sealing ridge (14) are integrally formed structures, and the sealing element (13) and sealing ridge (14) are made of rubber.

3. The waterproof wire according to claim 1, characterized in that: The first insulator (10) and the second insulator (20) each have a channel inside, the conductor (30) passes through the corresponding channel, and the connection between the conductor (30) and the channel is coated with sealant.

4. The waterproof wire according to claim 1, characterized in that: The first insulator (10) and the fixing seat (11) are integrally formed structures, and the second insulator (20), the sealing seat (21), the fixing ring (24) and the sealing ring (240) are integrally formed structures.

5. The waterproof wire according to claim 1, characterized in that: The outer diameter of the fixing ring (24) is larger than the outer diameter of the sealing seat (21), and the width of the fixing ring (24) is 3-8mm.

6. The waterproof wire according to claim 1, characterized in that: The fixed seat (11) has a first threaded groove (110) at the front end of its outer wall; the sealing seat (21) has a second threaded groove (211) at the front end of its outer wall; the sealing seat (21) has a connecting sleeve (23) on its outside, the connecting sleeve (23) has a threaded cavity at its rear end, and the threaded cavity is threadedly connected to the first threaded groove (110); the front end of the connecting sleeve (23) is coaxially fixed with a threaded ring (230), and the threaded ring (230) is threadedly connected to the second threaded groove (211).

7. The waterproof wire according to claim 6, characterized in that: The front end of the threaded cavity is provided with a second sealing groove, and the front sealing ring (240) is inserted into the second sealing groove.

8. The waterproof wire according to claim 1, characterized in that: The conductor (30) is covered with an insulating layer (31), the insulating layer (31) is covered with a filling layer (32), the filling layer (32) is covered with a waterproof layer (33), and the waterproof layer (33) is covered with a wear-resistant layer (34).

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