Bending-resistant branch single-core low-voltage cable
The protective design for branch cables, incorporating a protective sleeve and springs, addresses bending-induced damage, enhancing durability and reliability.
Patent Information
- Application Number
- CN202422245578.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-13
AI Technical Summary
Existing branch cables are prone to damage during repeated bending, resulting in internal damage and breakage, affecting service life.
The protective sleeve, fixing ring, compression spring and other structural design is adopted to protect the cable connections through limit and buffer protection sleeves to prevent excessive bending.
Effectively prevent excessive bending at the cable connection, extend the service life of the cable, and improve safety and installation convenience.
Smart Images
Figure CN223108571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a bend-resistant branched single-core low-voltage cable. Background Art
[0002] A branched cable is a cable used in power and communication systems. Its main function is to distribute the power or signal of the main cable to multiple branches. It is widely used in urban power grids, industries, buildings, and communication networks. When in use, it is necessary to connect the branched cable to the main cable by winding the metal inner cores of the main cable and the branched cable together. During use and installation, due to excessive repeated bending, damage may occur inside the cable, and even separation and fracture may occur, affecting the use of the branched cable. Summary of the Utility Model
[0003] The utility model aims to solve the deficiencies of the prior art and provides a bend-resistant branched single-core low-voltage cable.
[0004] To achieve the above object, the utility model adopts the following technical solutions: A bend-resistant branched single-core low-voltage cable, comprising: a main cable and a branched cable, the metal inner core of the branched cable is wound around the metal inner core of the main cable; two mounting sleeve pieces are respectively sleeved on both sides of the main cable, L-shaped convex blocks are fixedly arranged on both sides of the mounting sleeve piece, a fixed limit block is sleeved outside adjacent two L-shaped convex blocks, bolt holes are opened at corresponding positions of the fixed limit block and the L-shaped convex block, and fastening bolts are rotatably connected in the bolt holes; a protective sleeve is sleeved outside the mounting sleeve piece, a lead-out groove is opened on the protective sleeve, the branched cable passes through the lead-out groove and extends out of the protective sleeve, a fixing ring is sleeved on the branched cable, and the fixing ring is fixedly connected to the protective sleeve through a limit screw.
[0005] Further, a T-shaped convex block is fixedly arranged inside the protective sleeve, a T-shaped groove is opened on the mounting sleeve piece, and the T-shaped convex block is clamped in the T-shaped groove.
[0006] Further, a C-shaped wire clamp is arranged at the connection of the metal inner cores of the main cable and the branched cable, and a support tube is sleeved outside the branched cable.
[0007] Further, a sealing ring is sleeved outside the mounting sleeve piece, and the sealing ring is arranged between the L-shaped convex block and the protective sleeve.
[0008] Further, a first connecting plate is fixedly arranged on the fixing ring, a second connecting plate is fixedly arranged on the protective sleeve, and a compression spring is fixedly installed between the first connecting plate and the second connecting plate.
[0009] Further, the main cable and the branch cable have the same structure, including: a metal inner core, an isolation layer is coated on the outer side of the metal inner core, and an insulating layer is coated on the outer side of the isolation layer.
[0010] The beneficial effects of the present utility model are as follows: by providing a protective sleeve, a fixing ring, and a compression spring, the connection between the branch cable and the main cable will not be excessively bent, protecting the use safety of the branch cable and extending its service life; by installing sleeve pieces to limit the protective sleeve, it is convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic structural diagram of the present utility model;
[0012] Figure 2 is a structural sectional view of the present utility model;
[0013] Figure 3 is a top view of the present utility model;
[0014] Figure 4 is a top view of the installation sleeve piece;
[0015] Figure 5 is a side view of the installation sleeve piece;
[0016] Figure 6 is a side view of the fixed limit block;
[0017] In the figure: 1 - main cable; 2 - branch cable; 3 - metal inner core; 30 - isolation layer; 31 - insulating layer; 4 - installation sleeve piece; 40 - L-shaped convex block; 41 - fixed limit block; 42 - fastening bolt; 43 - T-shaped groove; 5 - protective sleeve; 50 - fixing ring; 51 - limit screw; 52 - T-shaped convex block; 53 - first connecting plate; 54 - second connecting plate; 55 - compression spring; 6 - C-shaped wire clamp; 7 - support tube; 8 - sealing ring;
[0018] The drawings in the present utility model are all schematic diagrams, and their sizes do not represent actual sizes;
[0019] The following will be described in detail with reference to the embodiments of the present utility model and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The following further illustrates the present utility model in conjunction with the drawings and embodiments:
[0021] As Figures 1 to 6As shown in the figure, a bend-resistant branched single-core low-voltage cable includes: a main cable 1 and a branched cable 2. The metal inner core 3 of the branched cable 2 is wound around the metal inner core 3 of the main cable 1. On both sides of the main cable 1, two mounting sleeve pieces 4 are sleeved respectively. On both sides of the mounting sleeve piece 4, L-shaped protrusions 40 are fixedly arranged. A fixed limit block 41 is sleeved outside two adjacent L-shaped protrusions 40. Bolt holes are opened at corresponding positions of the fixed limit block 41 and the L-shaped protrusion 40, and a fastening bolt 42 is rotatably connected in the bolt hole. A protective sleeve 5 is sleeved outside the mounting sleeve piece 4. A lead-out groove is opened on the protective sleeve 5. The branched cable 2 passes through the lead-out groove and extends out of the protective sleeve 5. A fixing ring 50 is sleeved on the branched cable 2, and the fixing ring 50 is fixedly connected with the protective sleeve 5 through a limit screw 51.
[0022] On the inner side of the protective sleeve 5, a T-shaped protrusion 52 is fixedly arranged. A T-shaped groove 43 is opened on the mounting sleeve piece 4. The T-shaped protrusion 52 is clamped in the T-shaped groove 43 to clamp the protective sleeve 5 and the mounting sleeve piece 4.
[0023] At the connection of the metal inner cores 3 of the main cable 1 and the branched cable 2, a C-shaped wire clamp 6 is provided. A support tube 7 is sleeved outside the branched cable 2.
[0024] A sealing ring 8 is sleeved outside the mounting sleeve piece 4. The sealing ring 8 is arranged between the L-shaped protrusion 40 and the protective sleeve 5. The L-shaped protrusion 40 and the sealing ring 8 limit the protective sleeve 5.
[0025] On the fixing ring 50, a first connecting plate 53 is fixedly arranged. On the protective sleeve 5, a second connecting plate 54 is fixedly arranged. A compression spring 55 is fixedly installed between the first connecting plate 53 and the second connecting plate 54.
[0026] The structures of the main cable 1 and the branched cable 2 are the same, including: a metal inner core 3. An isolation layer 30 is coated outside the metal inner core 3. An insulating layer 31 is coated outside the isolation layer 30.
[0027] Usage steps and principle of the utility model: The main cable 1 is threaded through the protective sleeve 5. The branch cable 2 is connected to the side of the main cable 1 through the C-shaped wire clamp 6. A support pipe 7 is sleeved outside the branch cable 2. The sealing ring 8 is sleeved on the installation sleeve piece 4. The installation sleeve pieces 4 are respectively clamped on both sides of the protective sleeve 5. The fixed limit block 41 is clamped on the L-shaped convex block 40 and then fixedly connected with the fastening bolt 42. The fixing ring 50 passes through the branch cable 2 and is fixedly connected with the protective sleeve 5 through the limit screw 51. The compression spring 55 is installed between the first connecting plate 53 and the second connecting plate 54. When the main cable 1 is bent, the protective sleeve 5 plays a role of buffering and protecting the connection between the cable 1 and the branch cable 2. The compression spring 55 is compressed or stretched to generate an elastic force to resist the bending force.
[0028] The above has made an exemplary description of the present utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various improvements are made by adopting the method concept and technical solution of the present utility model, or directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.
Claims
1. A bend-resistant branched single-core low-voltage cable, characterized in that, Including: A main cable (1) and a branch cable (2), the metal inner core (3) of the branch cable (2) is wound around the metal inner core (3) of the main cable (1); two mounting sleeve pieces (4) are sleeved on both sides of the main cable (1), L-shaped protrusions (40) are fixedly arranged on both sides of the mounting sleeve piece (4), a fixed limiting block (41) is sleeved outside adjacent two L-shaped protrusions (40), bolt holes are formed in corresponding positions of the fixed limiting block (41) and the L-shaped protrusion (40), and fastening bolts (42) are rotatably connected in the bolt holes; a protective sleeve (5) is sleeved outside the mounting sleeve piece (4), a lead-out groove is formed in the protective sleeve (5), the branch cable (2) passes through the lead-out groove and extends out of the protective sleeve (5), a fixing ring (50) is sleeved on the branch cable (2), and the fixing ring (50) is fixedly connected with the protective sleeve (5) through a limiting screw (51).
2. The one kind of bend-resistant branched single-core low-voltage cable according to claim 1, characterized in that, A T-shaped protrusion (52) is fixedly arranged inside the protective sleeve (5), a T-shaped groove (43) is formed in the mounting sleeve piece (4), and the T-shaped protrusion (52) is clamped in the T-shaped groove (43).
3. The one kind of bend-resistant branched single-core low-voltage cable according to claim 1, characterized in that, A C-shaped wire clamp (6) is arranged at the connection of the metal inner cores (3) of the main cable (1) and the branch cable (2), and a support pipe (7) is sleeved outside the branch cable (2).
4. A bend-resistant branched single-core low-voltage cable according to claim 1, wherein, A sealing ring (8) is sleeved outside the mounting sleeve piece (4), and the sealing ring (8) is arranged between the L-shaped protrusion (40) and the protective sleeve (5).
5. A bend-resistant branched single-core low-voltage cable according to claim 1, characterized in that, A first connecting plate (53) is fixedly arranged on the fixing ring (50), a second connecting plate (54) is fixedly arranged on the protective sleeve (5), and a compression spring (55) is fixedly installed between the first connecting plate (53) and the second connecting plate (54).
6. The single-core low-voltage cable with bend-resistant branches according to claim 1, characterized in that, The main cable (1) and the branch cable (2) have the same structure, including: a metal inner core (3), an isolation layer (30) is coated outside the metal inner core (3), and an insulating layer (31) is coated outside the isolation layer (30).