Extensible wire splitter

By employing a threaded connection design with unidirectional and bidirectional fixing brackets in the conductor branching unit, combined with the flexible switching of inlet dust plugs and connection terminals, the problem of the inflexible expansion of traditional conductor branching units is solved, achieving modular addition and improved electrical performance.

CN224233289UActive Publication Date: 2026-05-12NANJING YUEYUAN ELECTRIC POWER RES INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING YUEYUAN ELECTRIC POWER RES INST CO LTD
Filing Date
2026-04-13
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional wire splitters are difficult to adjust the number of branches according to actual wiring needs, are cumbersome to install and costly, and cannot achieve modular expansion.

Method used

The branch unit adopts a unidirectional and bidirectional fixing bracket, combined with a threaded connection method. The design of bolts passing through the conductive plate and the terminal threaded hole enables modular addition of the branch unit body. The flexible switching between the inlet dust plug and the connection terminal can meet the inlet requirements of different working conditions.

Benefits of technology

It enables flexible adjustment and modular expansion of the branch unit body, reduces contact resistance, simplifies maintenance and replacement operations, and ensures electrical and protective performance.

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Abstract

The utility model relates to the technical field of wire branching, in particular to an extensible wire splitter, which comprises a one-way fixing frame and a two-way fixing frame, a first mounting plate is arranged on one side surface of the one-way fixing frame, a first fixing bolt is inserted into the upper surface of the one-way fixing frame, a plurality of first screws are inserted into the upper surface of the first mounting plate, and a plurality of second fixing bolts are inserted into the two-way fixing frame. Second fixing bolts are inserted into the upper surface of the two-way fixing frame in a penetrating mode, and second fixing plates are arranged on the two opposite surfaces of the two-way fixing frame. According to the extensible wire splitter, the one-way fixing frame and the two-way fixing frame are arranged, and a threaded connection mode is adopted, so that the installation number and positions of the splitter bodies can be flexibly adjusted according to actual wiring requirements, the two-way fixing frame can simultaneously fix the two splitter bodies, and the one-way fixing frame is adaptive to single-side installation; the modularized additional arrangement of the splitter body is realized, the expandability of the number of wire branches is obviously improved, and the splitter adapts to line layouts of different scales.
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Description

Technical Field

[0001] This utility model relates to the field of wire branching technology, and in particular to an expandable wire brancher. Background Technology

[0002] In the field of power cabling, conductor branching is a common procedure in line laying. Currently, traditional conductor branching methods mostly use terminal blocks for direct winding connections. However, existing technologies have the following shortcomings: traditional branchers typically use a single, fixed structure, making it difficult to increase or decrease the number of branches according to actual cabling needs once installed. If additional branch points are required, rewiring or replacement with larger branchers is often necessary, resulting in cumbersome construction and high costs, and failing to achieve modular and flexible expansion. Therefore, we propose an expandable conductor brancher. Utility Model Content

[0003] The main objective of this invention is to provide an expandable wire brancher that can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An expandable wire splitter includes a unidirectional fixing frame and a bidirectional fixing frame. A first mounting plate is provided on one side of the unidirectional fixing frame, and a first fixing bolt is inserted through the upper surface of the unidirectional fixing frame. A plurality of first screws are inserted through the upper surface of the first mounting plate. A second fixing bolt is inserted through the upper surface of the bidirectional fixing frame. A second fixing plate is provided on opposite sides of the bidirectional fixing frame, and a plurality of second screws are inserted through the upper surface of the second fixing plate. A splitter body is provided on the bottom surface of the second fixing plate and the first mounting plate, and a cover plate is provided on the front side of the splitter body.

[0006] Preferably, the bottom surface of the brancher body is provided with a plurality of branch interfaces, and the upper surface of the brancher body is provided with a first inlet and a second inlet.

[0007] Preferably, the branch interface is provided with a branch terminal, a third locking bolt is inserted on one side of the branch body located on the side of the branch interface, a conductive plate is provided inside the branch body, a dust plug is provided in the first inlet, a second locking bolt is inserted on one side of the branch body located on the side of the first inlet, a connecting terminal is provided in the second inlet, and a first locking bolt is inserted on one side of the branch body located on the side of the first inlet.

[0008] Preferably, the branch terminal, the inlet dust plug and the connecting terminal are all provided with threaded holes on one side. One end of the first locking bolt passes through one side of the conductive plate and extends into the threaded hole on one side of the connecting terminal. The first locking bolt is threadedly engaged with the threaded hole on one side of the connecting terminal.

[0009] Preferably, the first mounting plate is threaded to the upper surface of the branch unit body by a first screw.

[0010] By adopting the above technical solution: the installation of dust plugs for the incoming line, if the second incoming line is not needed temporarily, it can be blocked with a threaded plug. When needed, it can be replaced with a real connection terminal. When not in use, the dust plug can be placed to prevent dust from entering.

[0011] Preferably, one end of the second locking bolt passes through one side of the conductive plate and extends into the threaded hole on one side of the inlet dust plug. The second locking bolt is threadedly engaged with the threaded hole on one side of the inlet dust plug. One end of the third locking bolt passes through one side of the conductive plate and extends into the threaded hole on one side of the branch terminal. The third locking bolt is threadedly engaged with the threaded hole on one side of the branch terminal.

[0012] By employing the above technical solution—where bolts are screwed through the conductive plate into the threaded holes of the terminals—the wires or terminals themselves are effectively pressed tightly against the conductive plate. This close metal-to-metal contact ensures good conductivity and reduces contact resistance. Compared to welding, threaded connections are reversible. If a branch interface is damaged, or if a different specification wire needs to be replaced, simply loosen the corresponding bolt to replace the corresponding branch terminal without damaging the entire branch unit's structure.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By setting up unidirectional and bidirectional fixing brackets and using threaded connections, the number and position of the branch unit can be flexibly adjusted according to actual wiring needs. The bidirectional fixing bracket can fix two branch units at the same time, and the unidirectional fixing bracket is suitable for single-sided installation. This realizes the modular addition of the branch unit, significantly improves the scalability of the number of wire branches, and adapts to different scales of line layout.

[0015] 2. The design employs a bolt that penetrates the conductive plate and is screwed into the threaded hole on the side of the terminal. The locking force tightly presses the terminal against the conductive plate surface. This direct metal-to-metal contact ensures excellent conductivity and reduces contact resistance. Furthermore, the threaded connection is reversible. When a branch interface is damaged or the wire specification needs to be changed, simply loosening the corresponding third locking bolt allows replacement of the branch terminal without damaging the overall structure of the branch unit, greatly simplifying maintenance and replacement operations.

[0016] 3. The first inlet port has a built-in replaceable dust plug, which effectively seals the gap when dual inlets are not required, preventing dust and moisture from entering the branch unit and protecting the internal electrical components. When dual inlets are needed, the dust plug can be replaced with a connecting terminal, allowing for flexible switching between "single inlet" and "dual inlet" modes. This ensures protection when not in use while meeting the inlet requirements of different operating conditions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an expandable wire brancher according to the present invention;

[0018] Figure 2 This is a schematic diagram of a unidirectional and bidirectional fixing frame for an expandable wire brancher according to the present invention;

[0019] Figure 3 This is an exploded view of the brancher body of an expandable wire brancher according to this utility model;

[0020] Figure 4 This is a rear view of an expandable wire brancher according to the present invention.

[0021] In the diagram: 12, unidirectional fixing bracket; 120, first fixing bolt; 121, first mounting plate; 122, first screw; 13, bidirectional fixing bracket; 130, second fixing bolt; 131, second fixing plate; 132, second screw; 2, brancher body; 20, cover plate; 201, branch interface; 202, first inlet; 203, second inlet; 204, inlet dust plug; 205, connecting terminal; 206, branch terminal; 21, first locking bolt; 210, second locking bolt; 211, third locking bolt; 22, conductive plate. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-4 This utility model provides a technical solution:

[0026] An expandable wire splitter includes a unidirectional fixing frame 12 and a bidirectional fixing frame 13. A first mounting plate 121 is provided on one side of the unidirectional fixing frame 12. A first fixing bolt 120 is inserted through the upper surface of the unidirectional fixing frame 12. A plurality of first screws 122 are inserted through the upper surface of the first mounting plate 121. A second fixing bolt 130 is inserted through the upper surface of the bidirectional fixing frame 13. A second fixing plate 131 is provided on opposite sides of the bidirectional fixing frame 13. A plurality of second screws 132 are inserted through the upper surface of the second fixing plate 131 and the first mounting plate 121. A splitter body 2 is provided on the bottom surface of the second fixing plate 131 and the first mounting plate 121. A cover plate 20 is provided on the front side of the splitter body 2. A plurality of splitting interfaces 201 are opened on the inner bottom surface of the splitter body 2. A first inlet 202 and a second inlet 203 are respectively opened on the upper surface of the splitter body 2.

[0027] In this embodiment, a branch terminal 206 is provided inside the branch interface 201. A third locking bolt 211 is inserted through one side of the branch body 2 on the side of the branch interface 201. A conductive plate 22 is provided inside the branch body 2. A dust plug 204 is provided inside the first inlet 202. A second locking bolt 210 is inserted through one side of the branch body 2 on the side of the first inlet 202. A connecting terminal 205 is provided inside the second inlet 203. A first locking bolt 21 is inserted through one side of the branch body 2 on the side of the first inlet 202. Threaded holes are provided on one side of the branch terminal 206, the dust plug 204, and the connecting terminal 205. The first locking bolt 21... One end of the first locking bolt 210 penetrates one side of the conductive plate 22 and extends into the threaded hole on one side of the connecting terminal 205. The first locking bolt 21 is threadedly engaged with the threaded hole on one side of the connecting terminal 205. The first mounting plate 121 is threadedly connected to the upper surface of the branch body 2 by the first screw 122. One end of the second locking bolt 210 penetrates one side of the conductive plate 22 and extends into the threaded hole on one side of the inlet dust plug 204. The second locking bolt 210 is threadedly engaged with the threaded hole on one side of the inlet dust plug 204. One end of the third locking bolt 211 penetrates one side of the conductive plate 22 and extends into the threaded hole on one side of the branch terminal 206. The third locking bolt 211 is threadedly engaged with the threaded hole on one side of the branch terminal 206.

[0028] Through the above scheme: the first mounting plate 121 on the unidirectional fixing frame 12 is threadedly connected to the upper surface of the brancher body 2 by several first screws 122; the second fixing plates 131 on opposite surfaces of the bidirectional fixing frame 13 are threadedly connected to the upper surface of the brancher body 2 by several second screws 132. Through the large-area contact of the plate-like structure, the brancher body 2 is firmly fixed to the bottom of the fixing frame, completing the overall installation and positioning. A dust plug 204 is built into the first cable inlet 202, and one end of the second locking bolt 210 penetrates one side of the conductive plate 22, extending... The dust plug 204 is threaded into the threaded hole on one side of the inlet, pressing it tightly against the inlet to seal the gap and prevent dust and moisture from entering the branch unit body 2. When dual inlets are required, the dust plug 204 in the first inlet 202 is replaced with a conductive connector 205. After connecting the external inlet cable to the connector 205, the first locking bolt 21 is tightened. One end of the bolt passes through the conductive plate 22 and is screwed into the threaded hole of the connector 205. The locking force tightly presses the connector 205 against the surface of the conductive plate 22, realizing the entry of electrical power. The current flows to the conductive plate 22; the second inlet 203 has a built-in connection terminal 205, which directly adapts to the conductive connection of the incoming line without the need for additional replacement; one end of the third locking bolt 211 passes through the conductive plate 22 and is screwed into the threaded hole on one side of the branch terminal 206. The locking force tightly presses the branch terminal 206 onto the surface of the conductive plate 22, so that the current flowing on the conductive plate 22 is split from the corresponding branch interface 201 to each branch wire through each branch terminal 206, realizing the wire branching function of one input and multiple outputs or multiple inputs and multiple outputs. Unidirectional fixing can be added or removed according to wiring requirements. The number of brackets 12 or bidirectional fixing brackets 13 is increased, and the two sides of the second fixing plate 131 of the bidirectional fixing bracket 13 can fix two branch body 2 at the same time. The unidirectional fixing bracket 12 is adapted to single-side installation, realizing the modular addition of branch body 2 and increasing the number of branch lines. By replacing the inlet dust plug 204 and the connection terminal 205 in the first inlet port 202, the "single inlet" and "dual inlet" modes can be flexibly switched. At the same time, branch interface 201 and matching branch terminal 206 or third locking bolt 211 can be added as needed to adapt to the outgoing line requirements of more branches.

[0029] It should be noted that the first mounting plate 121 of the unidirectional fixing bracket 12 is threadedly connected to the upper surface of the branch unit body 2 by several first screws 122, and the second fixing plates 131 of the two opposing surfaces of the bidirectional fixing bracket 13 are threadedly connected to the upper surface of the branch unit body 2 by several second screws 132. Through the large-area contact of the plate-like structure, the branch unit body 2 is firmly fixed; the second inlet port 203 has a built-in connection terminal 205. After the external inlet cable is connected to the connection terminal 205, the first locking bolt 21 is tightened, and one end of it... The connecting terminal 205 is screwed into the threaded hole of the connecting terminal 205 through one side of the conductive plate 22. The connecting terminal 205 is tightly pressed onto the surface of the conductive plate 22 by the locking force, so as to realize the conduction of single-path input current to the conductive plate 22. At this time, the first inlet 202 has an inlet dust plug 204. Tighten the second locking bolt 210, one end of which passes through one side of the conductive plate 22 and is screwed into the threaded hole of the inlet dust plug 204, pressing the dust plug tightly at the first inlet 202, sealing the gap to prevent dust and moisture from entering the inside of the brancher body 2. Several branch interfaces 201 are provided on the inner bottom surface of the branch body 2 as outlet channels for branch wires. Each branch interface 201 is provided with a branch terminal 206. Tightening the third locking bolt 211, one end of which passes through one side of the conductive plate 22 and is screwed into the threaded hole of the branch terminal 206, tightly presses the branch terminal 206 onto the surface of the conductive plate 22 through the locking force. This allows the current flowing on the conductive plate 22 to be branched from the corresponding branch interface 201 to each branch wire through each branch terminal 206, thus completing the core of wire branching. The device can flexibly increase or decrease the number of unidirectional fixing brackets 12 and bidirectional fixing brackets 13 according to actual wiring needs. The double-sided second fixing plates 131 of the bidirectional fixing bracket 13 can fix two branch unit bodies 2 at the same time. The unidirectional fixing bracket 12 is adapted for single-sided installation, realizing the modular addition of branch unit bodies 2. At the same time, according to the branch line output requirements, branch interface 201 and matching branch terminal 206 and third locking bolt 211 can be added to adapt to the output requirements of more branch lines, thereby flexibly increasing the number of wire branches of the overall equipment.

[0030] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An expandable wire splitter, comprising a unidirectional fixing bracket (12) and a bidirectional fixing bracket (13), characterized in that: The unidirectional fixing frame (12) has a first mounting plate (121) on one side, a first fixing bolt (120) is inserted through the upper surface of the unidirectional fixing frame (12), a plurality of first screws (122) are inserted through the upper surface of the first mounting plate (121), a second fixing bolt (130) is inserted through the upper surface of the bidirectional fixing frame (13), a second fixing plate (131) is provided on the opposite two surfaces of the bidirectional fixing frame (13), a plurality of second screws (132) are inserted through the upper surface of the second fixing plate (131) and the bottom surface of the second fixing plate (131) and the first mounting plate (121) are provided with a branch body (2), and a cover plate (20) is provided on the front side of the branch body (2).

2. The expandable wire splitter according to claim 1, characterized in that: The bottom surface of the brancher body (2) is provided with several branch interfaces (201), and the top surface of the brancher body (2) is provided with a first inlet (202) and a second inlet (203).

3. The expandable wire splitter according to claim 2, characterized in that: The branch interface (201) is provided with a branch terminal (206). A third locking bolt (211) is inserted on one side of the branch body (2) on the side of the branch interface (201). A conductive plate (22) is provided inside the branch body (2). A dust plug (204) is provided inside the first inlet (202). A second locking bolt (210) is inserted on one side of the branch body (2) on the side of the first inlet (202). A connecting terminal (205) is provided inside the second inlet (203). A first locking bolt (21) is inserted on one side of the branch body (2) on the side of the first inlet (202).

4. An expandable wire splitter according to claim 3, characterized in that: The branch terminal (206), the inlet dust plug (204) and the connecting terminal (205) are all provided with threaded holes on one side. One end of the first locking bolt (21) passes through one side of the conductive plate (22) and extends into the threaded hole on one side of the connecting terminal (205). The first locking bolt (21) is threadedly engaged with the threaded hole on one side of the connecting terminal (205).

5. An expandable wire splitter according to claim 1, characterized in that: The first mounting plate (121) is threaded to the upper surface of the branch body (2) by the first screw (122).

6. An expandable wire splitter according to claim 3, characterized in that: One end of the second locking bolt (210) passes through one side of the conductive plate (22) and extends into the threaded hole on one side of the inlet dust plug (204). The second locking bolt (210) is threadedly engaged with the threaded hole on one side of the inlet dust plug (204). One end of the third locking bolt (211) passes through one side of the conductive plate (22) and extends into the threaded hole on one side of the branch terminal (206). The third locking bolt (211) is threadedly engaged with the threaded hole on one side of the branch terminal (206).