Waterproof insulating branch cable
By introducing buffer components, connectors, waterproof sleeves, and waterproof covers into the branch cables, combined with shielding and fire-retardant coatings, the problem of poor protection in traditional branch cables is solved, achieving higher waterproof and fireproof performance and structural stability.
Patent Information
- Application Number
- CN202520108985.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Traditional branch cables are prone to leakage of external liquids during installation due to insufficient tightness, wear and loosening of fasteners, or damage to the end of the casing, resulting in poor protection.
The design incorporates buffer components, snap-fit connectors, waterproof sleeves, wire core connection rubber seats, and waterproof covers. Combined with shielding and fire-retardant coatings, it forms a multi-layered protection system to ensure stable connection and waterproof and fire-resistant performance of the main cable and branch cables.
It improves the protection of branch cables, enhances structural stability and waterproof and fireproof performance, prevents external liquids from entering and electromagnetic interference, and ensures the stability of cable use.
Smart Images

Figure CN223842662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cable, and more particularly to a waterproof insulated branch cable. Background Technology
[0002] Branch cables are power distribution lines that branch off from the main cable, primarily used to deliver power to different equipment and terminals. Traditionally, branch cables are installed by connecting the branch cable to the main cable using a branch connector. Common branch connectors are prefabricated shells; during assembly, the main cable and branch cable are first fixed inside the shell, and then the shell is assembled using bolts or other fixing methods to protect the internal main and branch cables. However, if the assembly of these branch cables is not tight enough, if the fasteners wear and loosen, or if the shell ends are damaged, external liquids can enter the connection between the branch cable and the main cable, causing damage. Therefore, the overall protective effect is poor. Thus, existing branch cables suffer from inadequate protection. Utility Model Content
[0003] The purpose of this invention is to provide a waterproof insulated branch cable. This invention has the advantage of good protective effect.
[0004] The technical solution of this utility model is as follows: A waterproof insulated branch cable includes a shell, a main cable, and branch cables. A buffer component is provided inside the shell between the main cable and the branch cables. Both sides of the buffer component have locking seats for connecting the main cable and the branch cables, and the surfaces of the locking seats are coated with a shielding coating. Waterproof sleeves are installed at the ends of both the branch cables and the main cable. The inner walls of the waterproof sleeves are also coated with a shielding coating, and two layers of buffer rubber pads are wrapped between the outer walls of the waterproof sleeves. Multiple "C"-shaped core connecting rubber seats are provided on the branch cables at positions corresponding to their connection with the main cable. The inner walls of the core connecting rubber seats are also coated with a shielding coating. Utilizing the buffer component, the two layers of buffer rubber pads, and the waterproof cover, a waterproof shielding coating is provided on the outer sides of the main cable and the branch cables, and between the main cable and the branch cables. The structure forms an anti-collision protection layer, preventing deformation and damage to the internal main or branch cables caused by external impacts. Furthermore, the waterproof sleeve provides waterproof protection at the ends, preventing external liquids from entering the connection points between the main and branch cables, thus enhancing the overall protection of the branch cable. The shielding coating on the inner walls of the connector, waterproof sleeve, and core connection rubber base forms electromagnetic shielding on the outside of the main and branch cables, preventing external electromagnetic interference and further improving protection. Simultaneously, the multiple core connection rubber bases increase the tightness of the connection between the main and branch cables, preventing detachment due to external pulling and ensuring structural stability.
[0005] In the aforementioned waterproof insulated branch cable, the surface of the core connecting rubber seat is provided with a plurality of evenly distributed first arc-shaped protrusions; the inner wall of the outer shell is provided with a plurality of evenly distributed second arc-shaped protrusions at positions corresponding to the core connecting rubber seat, and the first and second arc-shaped protrusions are arranged in an alternating manner; by using the alternating arrangement of the first and second arc-shaped protrusions, the first and second arc-shaped protrusions can be relatively limited and fixed, thereby ensuring that the core connecting rubber seat will not be displaced during use, thus ensuring the stability of the structure.
[0006] In the aforementioned waterproof insulated branch cable, waterproof caps are provided at both ends of the outer shell, and the waterproof caps are provided with through holes for the main cable and branch cable to pass through; a mounting ring groove is provided on the outer surface of the waterproof cap at the position corresponding to each through hole, and a waterproof gasket is bonded in the mounting ring groove; the setting of the waterproof cap and the waterproof gasket makes the two ends of the outer shell also have an external waterproof effect, which, together with the internal waterproof sleeve, improves the overall waterproof effect of the cable.
[0007] In the aforementioned waterproof insulated branch cable, the waterproof cover has two symmetrically distributed slots on the side facing the outer shell; the waterproof sleeve has two symmetrically distributed blocks on its end face, and the blocks and slots cooperate with each other; by providing slots on the waterproof cover and cooperating with the blocks on the waterproof sleeve, the waterproof cover and the waterproof sleeve can be snapped together to form an integrated internal and external waterproof protection, ensuring the waterproof effect while also positioning the waterproof sleeve through the waterproof cover, thus ensuring the stability of the structure.
[0008] In the aforementioned waterproof insulated branch cable, multiple evenly distributed buffer springs are provided between the two layers of buffer rubber pads; the buffer springs can increase the buffering capacity between the two layers of rubber pads, further improving the overall protective effect of the cable.
[0009] In the aforementioned waterproof insulated branch cable, the outer wall of the outer shell is coated with a fire-retardant coating; the fire-retardant coating provides fire protection on the outside, giving the entire cable a certain fire-resistant effect.
[0010] Compared with existing technologies, this utility model improves upon existing branch cables by incorporating a buffer between the main cable and the branch cable. The buffer has locking seats on both sides, which connect the branch cable to the buffer and the main cable to the buffer, thus fixing the position of the main cable and the branch cable. Furthermore, waterproof sleeves are installed between the ends of the main cable and the branch cable to further fix their position. Finally, multiple core connecting rubber seats located at the connection points of the branch cable and the main cable provide multi-point fixation between the main cable and the branch cable. This ensures structural stability and effectively prevents the branch cable from detaching from the main cable due to pulling. The absence of disconnection ensures stable operation. By incorporating buffers between the main cable and branch cables, along with two layers of buffer rubber pads between the waterproof sleeve and the outer shell, internal and external buffering protection is achieved for both the main cable and branch cables. Furthermore, the waterproof sleeve prevents external liquids from entering the main cable and branch cables at their ends, providing a degree of waterproofing and thus enhancing protection. Simultaneously, a shielding coating is applied to the surfaces of the connectors, connectors, and wire core connecting rubber bases. This shielding coating creates electromagnetic shielding on the outside of the branch cables and main cables, preventing electromagnetic interference during operation and ensuring stable operation. Furthermore, this utility model also features multiple evenly distributed first arc-shaped protrusions on the surface of the waterproof sleeve and the rubber seat connecting the wire core, and multiple evenly distributed second arc-shaped protrusions on the inner wall of the outer shell. The staggered arrangement of the first and second arc-shaped protrusions allows them to be internally fixed to each other, preventing misalignment and ensuring structural stability. By providing waterproof caps at both ends of the outer shell, with waterproof gaskets fitted onto the branch cables and main cables, the ends of the outer shell also have external waterproofing. Combined with the internal waterproof sleeve, this enhances the overall waterproof performance of the cable. The waterproof cover has a slot that engages with the locking block on the waterproof sleeve, allowing the cover and sleeve to snap together to form a unified internal and external waterproof protection system. This ensures waterproofing while also positioning the waterproof sleeve via the cover, guaranteeing structural stability. Multiple evenly distributed buffer springs are placed between two layers of buffer rubber pads, increasing the cushioning capacity and further enhancing the overall cable protection. A fire-retardant coating is applied to the outer surface of the outer shell, providing external fire protection and giving the cable a certain degree of fire resistance. Therefore, this invention not only improves protection but also boasts high structural and operational stability. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the structure of the rubber base connecting the wire core;
[0013] Figure 3 This is a schematic diagram of the buffer component;
[0014] Figure 4 yes Figure 1 A magnified view of a section at point A in the middle;
[0015] Figure 5 This is a side view of the present invention.
[0016] The markings in the attached diagram are as follows: 1-outer shell, 2-main cable, 3-branch cable, 4-buffer, 5-slot connector, 6-shielding coating, 7-waterproof sleeve, 8-buffer rubber pad, 9-core connecting rubber seat, 10-first arc-shaped protrusion, 11-second arc-shaped protrusion, 12-waterproof cover, 13-waterproof washer, 14-slot, 15-block, 16-buffer spring. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0018] Example. A waterproof insulated branch cable, configured as follows: Figures 1 to 5 As shown, the device includes a housing 1, a main cable 2, and branch cables 3. Its features include: a buffer 4 located inside the housing 1 between the main cable 2 and the branch cables 3; two snap-fit seats 5 for connecting the main cable 2 and the branch cables 3 on both sides of the buffer 4; a shielding coating 6 coated on the surface of the snap-fit seats 5; waterproof sleeves 7 installed at the ends of both the branch cables 3 and the main cable 2; a shielding coating 6 also coated on the inner wall of the waterproof sleeves 7; and two layers of buffer rubber pads 8 covering the outer walls of the waterproof sleeves 7; and multiple "C"-shaped core connecting rubber seats 9 located on the branch cables 3 corresponding to their connection points with the main cable 2, with a shielding coating 6 also coated on the inner wall of the core connecting rubber seats 9.
[0019] The surface of the core connecting rubber seat 9 is provided with multiple evenly distributed first arc-shaped protrusions 10; the inner wall of the outer shell 1 is provided with multiple evenly distributed second arc-shaped protrusions 11 at the positions corresponding to the core connecting rubber seat 9, and the first arc-shaped protrusions 10 and the second arc-shaped protrusions 11 are arranged in an alternating manner; both ends of the outer shell 1 are provided with waterproof caps 12, and the waterproof caps 12 are provided with through holes for the main cable 2 and the branch cable 3 to pass through; the outer surface of the waterproof caps 12 is provided with mounting ring grooves at the positions corresponding to each through hole, and waterproof washers 13 are bonded in the mounting ring grooves; the side of the waterproof caps 12 facing the outer shell 1 is provided with two symmetrically distributed slots 14; the end face of the waterproof sleeve 7 is provided with two symmetrically distributed locking blocks 15, and the locking blocks 15 cooperate with the locking slots 14; multiple evenly distributed buffer springs 16 are provided between the two layers of buffer rubber pads 8; the outer wall of the outer shell 1 is coated with a fireproof coating.
[0020] Working Principle: During use, the waterproof caps 12 at both ends of the outer casing 1, along with the waterproof gaskets 13 fitted onto the main cable 2 and the branch cable 3, firstly prevent large amounts of external liquid from entering the interior of the outer casing 1, providing the first layer of waterproof protection. If a small amount of liquid still enters the outer casing 1, the waterproof sleeve 7 between the main cable 2 and the branch cable 3 provides a second layer of waterproof protection, blocking the liquid between the waterproof sleeve 7 and the waterproof caps 12. The waterproof caps 12, waterproof gaskets 13, and waterproof sleeves 7 work together to achieve double waterproof protection for both the branch cable 3 and the main cable 2, improving the overall protection effect. Furthermore, the buffer 4 between the main cable 2 and the branch cable 3 not only fixes the position of the branch cable 3 and the main cable 2 but also... In conjunction with the outer buffer rubber pad 8 and buffer spring 16, a multi-directional buffer protection is formed for the main cable 2 and the branch cable 3, preventing external impacts from causing bending, damage, or displacement of the branch cable 3 or the main cable 2, thus further improving the protection effect. The setting of the core connection rubber seat 9 at the connection between the main cable 2 and the branch cable 3 can increase the tightness of the connection between the main cable 2 and the branch cable 3. Combined with the first arc-shaped protrusion 10 on the outer surface of the core connection rubber seat 9 and the second arc-shaped protrusion 11 on the inner side wall of the outer shell 1, the mutual blocking effect of the staggered first arc-shaped protrusion 10 and the second arc-shaped protrusion 11 can effectively prevent the internal core connection rubber seat 9 from moving, ensuring the tightness of the connection between the main cable 2 and the branch cable 3 and improving the stability of the structure.
Claims
1. A waterproof insulated branch cable, comprising a shell (1), a main cable (2), and branch cables (3), characterized in that: A buffer (4) is provided between the main cable (2) and the branch cable (3) inside the outer shell (1). Both sides of the buffer (4) are provided with a snap-fit seat (5) for connecting the main cable (2) and the branch cable (3). The surface of the snap-fit seat (5) is coated with a shielding coating (6). The ends of the branch cable (3) and the main cable (2) are equipped with waterproof sleeves (7). The inner sidewall of the waterproof sleeve (7) is also coated with a shielding coating (6). Two layers of buffer rubber pads (8) are wrapped between the outer sidewalls of the waterproof sleeve (7). Multiple "C"-shaped wire core connecting rubber seats (9) are provided on the branch cable (3) at the position corresponding to the connection with the main cable (2). The inner sidewall of the wire core connecting rubber seat (9) is also coated with a shielding coating (6).
2. The waterproof insulated branch cable according to claim 1, characterized in that: The surface of the core connecting rubber seat (9) is provided with a plurality of uniformly distributed first arc-shaped protrusions (10); the inner wall of the outer shell (1) is provided with a plurality of uniformly distributed second arc-shaped protrusions (11) at the position corresponding to the core connecting rubber seat (9), and the first arc-shaped protrusions (10) and the second arc-shaped protrusions (11) are arranged in an alternating manner.
3. The waterproof insulated branch cable according to claim 1, characterized in that: Both ends of the outer casing (1) are provided with waterproof caps (12), and the waterproof caps (12) are provided with through holes for the main cable (2) and the branch cable (3) to pass through; the outer side of the waterproof caps (12) is provided with mounting ring grooves corresponding to the position of each through hole, and waterproof gaskets (13) are bonded in the mounting ring grooves.
4. A waterproof insulated branch cable according to claim 3, characterized in that: The waterproof cover (12) has two symmetrically distributed slots (14) on the side facing the outer shell (1); the waterproof sleeve (7) has two symmetrically distributed blocks (15) on the end face, and the blocks (15) and the slots (14) cooperate with each other.
5. A waterproof insulated branch cable according to claim 1, characterized in that: Multiple evenly distributed buffer springs (16) are provided between the two layers of buffer rubber pads (8).
6. A waterproof insulated branch cable according to any one of claims 1 to 5, characterized in that: The outer wall of the outer casing (1) is coated with a fire-retardant coating.