Splicing type cable bus duct

By using a design that supports guide ribs and ball screws, the misalignment problem during cable busbar duct splicing is solved, achieving tight connection and convenient disassembly, and improving the accuracy and stability of splicing.

CN224218073UActive Publication Date: 2026-05-08JIANGSU ZHENGKAI ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU ZHENGKAI ELECTRIC APPLIANCE CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing cable busbars lack a calibration structure during splicing, which makes the splicing joints prone to misalignment and instability.

Method used

The system employs a support guide rib and ball screw structure. The support guide rib provides sliding guidance, and the ball screw adjusts the position of the positioning block to achieve precise docking and tight splicing of the busbar trunking body.

Benefits of technology

It achieves precise docking and tight connection at the splicing points of the busbar trunking body, avoiding splicing misalignment and facilitating disassembly and maintenance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224218073U_ABST
    Figure CN224218073U_ABST
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Abstract

The utility model provides a splicing type cable bus duct, which belongs to the technical field of bus ducts and comprises a bus duct body and a splicing cover arranged on one side of the bus duct body. The supporting and guiding ribs are arranged on the outer wall of one side of the bus duct body; the positioning holes are formed in the outer wall of one side of the bus duct body and are close to the vertical direction of the supporting and guiding ribs; the through groove is formed in the splicing cover; the guide groove is formed in the inner side wall of the through groove; the through groove is formed in the outer side wall of the penetrating groove and is close to the vertical direction of the guide groove; according to the utility model, the splicing cover carries out linear guiding movement at the splicing and plugging part of the adjacent bus duct bodies, the plugging part can be limited and corrected, the butt joint tightness and the butt joint precision of the splicing part are ensured, the two positioning blocks are controlled to be close to each other, and the two bus duct bodies move in opposite directions by utilizing thrust, so that the butt joint precision is improved. And the splicing position is inserted more tightly.
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Description

Technical Field

[0001] This utility model belongs to the field of busbar technology, specifically relating to a spliced ​​cable busbar. Background Technology

[0002] Busbar trunking is a closed metal device made of copper or aluminum busbar columns. It is used to distribute a large amount of power to various components of a distributed system and has increasingly replaced wires and cables in indoor low-voltage power transmission trunk line projects.

[0003] When using existing cable bus troughs, multiple bus troughs need to be spliced ​​together due to environmental or operational requirements. Most existing cable bus troughs are spliced ​​using a plug-in method. Due to the difference in orientation between adjacent bus troughs, there is a lack of calibration structure after the plug-in splicing, which can easily lead to misalignment at the splicing and plugging points of the bus troughs, or even problems with the plugging being secure.

[0004] Therefore, a splicing cable busbar trunking method is proposed. Summary of the Invention

[0005] This utility model provides a splicing cable busbar trunking, the purpose of which is to solve the problems mentioned above.

[0006] This utility model provides a splicing cable busbar trunking, including a busbar trunking body, a splicing cover located on one side of the busbar trunking body; a supporting guide rib on the outer wall of one side of the busbar trunking body; a positioning hole on the outer wall of one side of the busbar trunking body in a vertical direction near the supporting guide rib; a through groove on the splicing cover; a guide groove on the inner side wall of the through groove; and a through groove on the outer side wall of the through groove in a vertical direction near the guide groove; two ball screws, a first ball screw and a second ball screw, rotatably located inside the splicing cover near the top of the through groove, with one end of the first ball screw and the second ball screw fixedly connected; positioning covers fixed to nut seats on the first ball screw and the second ball screw by screws; a screw threaded through and screwed to the center of the outer wall of one side of the positioning cover; a positioning block rotatably located at one end of the screw; and discs located at one end of the first ball screw and the screw.

[0007] Furthermore, the supporting guide rib and the guide groove slide in match, and the length of the supporting guide rib is twice the length of the guide groove;

[0008] By adopting the above technical solution, the longer support guide ribs can provide support and guidance for the sliding of the splicing cover on the busbar trunking body, so that the splicing cover moves onto one of the busbar trunking bodies, thereby causing the splicing point of the two busbar trunking bodies to lose the support of the splicing cover, making it easier to disassemble one of the busbar trunking bodies.

[0009] Furthermore, both the positioning hole and the positioning block have rectangular cross-sections, the positioning block can be inserted into the positioning hole, and the positioning block slides within the positioning cover.

[0010] By adopting the above technical solution, the positioning block can move linearly inside the positioning cover and be inserted into the positioning hole, thereby realizing the docking of the busbar trunking body and the splicing cover.

[0011] Furthermore, the threads on the first ball screw and the second ball screw have opposite directions of rotation, and the interior of the splicing cover is provided with a cavity that allows the first ball screw and the second ball screw to rotate smoothly. The cavity is connected to the through groove.

[0012] By adopting the above technical solution, the positioning covers on ball screw one and ball screw two can move in opposite directions, control the distance between the two positioning covers, and use the cavity to ensure the smooth rotation of ball screw one and ball screw two, avoiding obstruction of the linear movement of the positioning covers.

[0013] Furthermore, a slider is provided on the outer wall of the positioning cover, and a sliding groove is provided at the bottom of the through groove, with the slider and the sliding groove being slidably connected.

[0014] By adopting the above technical solution, the stability of the linear movement of the positioning cover is ensured through the sliding connection.

[0015] Furthermore, the outer wall of the busbar trunking body is attached to the inner wall of the through-slot;

[0016] By adopting the above technical solution, the splicing cover can support the inserted busbar trunking body, thereby supporting the splicing point of the two busbar trunking bodies.

[0017] The beneficial effects of this utility model are as follows:

[0018] This utility model uses a splicing cover to guide the linear movement at the splicing and insertion point of adjacent busbar trunking bodies. This can limit and correct the insertion point, ensuring that adjacent busbar trunking bodies are in the same position, thereby ensuring the tightness and accuracy of the splicing. By controlling the two positioning blocks to move closer to each other, the two busbar trunking bodies are moved towards each other using thrust, which makes the splicing and insertion point tighter and avoids the busbar trunking bodies not being spliced ​​properly.

[0019] The positioning block disengages from the positioning hole, and the supporting guide ribs provide support and guidance for the sliding of the splicing cover on the busbar trunking body, so that the splicing cover moves to the outside of one of the busbar trunking bodies, thereby causing the splicing point of the two busbar trunking bodies to lose the support of the splicing cover, making it easier to disassemble one of the busbar trunking bodies.

[0020] When using existing cable bus troughs, multiple bus troughs need to be spliced ​​together due to environmental or operational requirements. Most existing cable bus troughs are spliced ​​using a plug-in method. Due to the difference in orientation between adjacent bus troughs, there is a lack of calibration structure after the plug-in splicing, which can easily lead to misalignment at the splicing and plugging points of the bus troughs, or even problems with the plugging being secure.

[0021] 1. Busbar trunking body; 2. Splicing cover; 3. Supporting guide ribs; 4. Positioning hole; 5. Through groove; 6. Guide groove; 7. Through slot; 8. Ball screw one; 9. Ball screw two; 10. Positioning cover; 11. Screw; 12. Positioning block; 13. Disc

[0022] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the splicing cover structure according to an embodiment of the present utility model;

[0026] Figure 3 This is a cross-sectional view of the splicing cover according to an embodiment of the present utility model;

[0027] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged diagram of point A in the diagram;

[0028] Reference numerals in the attached drawings: 1. Busbar trunking body; 2. Splicing cover; 3. Supporting guide rib; 4. Positioning hole; 5. Through groove; 6. Guide groove; 7. Through groove; 8. Ball screw one; 9. Ball screw two; 10. Positioning cover; 11. Screw; 12. Positioning block; 13. Disc. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] Reference Figure 1-4 This utility model embodiment proposes a splicing cable busbar trunking, including a busbar trunking body 1 and a splicing cover 2. The busbar trunking body 1 is located on one side of the splicing cover 2, and eight supporting guide ribs 3 are symmetrically arranged on the outer wall of the busbar trunking body 1. The eight supporting guide ribs 3 are arranged in pairs, and a positioning hole 4 is opened between the two supporting guide ribs 3 in each pair on one side of the outer wall of the busbar trunking body 1.

[0031] A through groove 5 is provided on one outer wall of the splicing cover 2. The outer wall of the busbar trunking body 1 fits against the inner wall of the through groove 5, allowing the splicing cover 2 to support the inserted busbar trunking body 1 and thus support the splicing point of the two busbar trunking bodies 1. Four guide grooves 6 are symmetrically provided on the inner wall of the through groove 5. The supporting guide ribs 3 and the guide grooves 6 slide together, and the length of the supporting guide ribs 3 is twice the length of the guide grooves 6. The longer supporting guide ribs 3 can provide support and guidance for the sliding of the splicing cover 2 on the busbar trunking body 1, allowing the splicing cover 2 to move to... On one of the busbar trunking bodies 1, the splicing point of the two busbar trunking bodies 1 loses the support of the splicing cover 2, making it easier to disassemble one of the busbar trunking bodies 1. Two through slots 7 are symmetrically opened at the center of the outer side wall of the splicing cover 2. Ball screw 1 8 and ball screw 2 9 are rotatably connected inside the splicing cover 2 near the upper part of the through slots 7. One end of ball screw 1 8 and ball screw 2 9 are fixedly connected, and the threads on ball screw 1 8 and ball screw 2 9 rotate in opposite directions. A cavity is provided inside the splicing cover 2 to allow ball screw 1 8 and ball screw 2 9 to rotate smoothly. The through groove 7 is interconnected, allowing the positioning covers 10 on ball screw 1 8 and ball screw 2 9 to move in opposite directions, controlling the distance between the two positioning covers 10. The cavity ensures smooth rotation of ball screw 1 8 and ball screw 2 9, preventing obstruction of the linear movement of the positioning covers 10. The nut seats on ball screw 1 8 and ball screw 2 9 are fixedly connected to the positioning covers 10 by screws. A slider is provided on the outer wall of the positioning cover 10, and a sliding groove is formed at the bottom of the through groove 7. The slider and the sliding groove are slidably connected, ensuring stable linear movement of the positioning covers 10. Qualitatively, a screw 11 is threadedly connected to the center of the outer wall of the positioning cover 10 on the side away from the through groove 5. A positioning block 12 is rotatably connected to one end of the screw 11 near the inner side of the positioning cover 10. The positioning hole 4 and the positioning block 12 have rectangular cross sections. The positioning block 12 can be inserted into the positioning hole 4. The positioning block 12 slides inside the positioning cover 10, which allows the positioning block 12 to move linearly inside the positioning cover 10 and be inserted into the positioning hole 4, so as to realize the docking of the busbar trunking body 1 and the splicing cover 2. A disc 13 is provided at one end of both the ball screw 8 and the screw 11.

[0032] The specific implementation method is as follows: When splicing adjacent busbar trunking bodies 1, the adjacent busbar trunking bodies 1 are first connected to form a circuit path. Then, the splicing cover 2 is placed on the outside of the busbar trunking body 1. Under the guidance of the supporting guide ribs 3 and the guide grooves 6, the splicing cover 2 is moved to the splicing point between the adjacent busbar trunking bodies 1. According to the spacing of the positioning holes 4 on the adjacent busbar trunking bodies 1, the spacing of the two positioning covers 10 is adjusted. The disc 13 at one end of the ball screw 8 is rotated, and the ball screw... The first screw 8 and the second ball screw 9 rotate synchronously. The positioning covers 10 on the first ball screw 8 and the second ball screw 9 move towards or away from each other, thereby adjusting the distance between the two positioning blocks 12. When the positioning block 12 is adjusted to the horizontal side of the positioning hole 4, the disc 13 at one end of the screw 11 is rotated and connected by screw thread. The other end of the screw 11 pushes the positioning block 12 to move linearly inside the positioning cover 10. A part of the positioning block 12 is inserted into the positioning hole 4, realizing the docking of the splicing cover 2 and the busbar trunking body 1.

[0033] To ensure a tight joint between adjacent busbar trunking bodies 1, the ball screw 8 is rotated further, causing the two positioning blocks 12 to move closer together. The thrust is used to make the two busbar trunking bodies 1 fit together more tightly.

[0034] When it is necessary to disassemble one of the busbar trunking bodies 1, rotate the screw 11 to disengage the positioning block 12 from the positioning hole 4 and guide the splicing cover 2 to the outside of the other busbar trunking body 1. At this time, the splicing cover 2 and the splicing point of the adjacent busbar trunking body 1 are misaligned. By disassembling the splicing point, one of the busbar trunking bodies 1 can be disassembled vertically downwards for easy inspection and maintenance.

[0035] 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. A splicing cable busbar trunking, comprising a busbar trunking body (1), characterized in that: A splicing cover (2) is provided on one side of the busbar trunking body (1); Supporting guide ribs (3) are provided on one side of the outer wall of the busbar trunking body (1); and A positioning hole (4) is opened on one side of the outer wall of the busbar trunking body (1) in the vertical direction near the supporting guide rib (3); A through slot (5) is provided on the splicing cover (2); A guide groove (6) is formed on the inner sidewall of the through groove (5); and A through groove (7) is formed on the outer wall of the through groove (5) in the vertical direction near the guide groove (6); The ball screws 1 (8) and 2 (9) are rotated inside the splicing cover (2) near the top of the through groove (7), and one end of the ball screws 1 (8) and 2 (9) is fixedly connected. Positioning covers (10) are fixed to the nut seats of the ball screw one (8) and the ball screw two (9) respectively by screws; A screw (11) threaded through and screwed into the center of the outer wall of one side of the positioning cover (10); A positioning block (12) that rotates at one end of the screw (11); Disks (13) are respectively located at one end of the ball screw (8) and the screw (11).

2. The spliced ​​cable busbar trunking according to claim 1, characterized in that: The supporting guide rib (3) and the guide groove (6) slide in a matching manner, and the length of the supporting guide rib (3) is twice the length of the guide groove (6).

3. The spliced ​​cable busbar trunking according to claim 1, characterized in that: The positioning hole (4) and the positioning block (12) both have rectangular cross-sections, and the positioning block (12) can be inserted into the positioning hole (4).

4. The spliced ​​cable busbar trunking according to claim 1, characterized in that: The positioning block (12) slides inside the positioning cover (10).

5. A spliced ​​cable busbar trunking according to claim 1, characterized in that: The threads on the first ball screw (8) and the second ball screw (9) have opposite directions of rotation. The inside of the splicing cover (2) is provided with a cavity that allows the first ball screw (8) and the second ball screw (9) to rotate smoothly. The cavity is connected to the through groove (7).

6. The spliced ​​cable busbar trunking according to claim 1, characterized in that: A slider is provided on the outer wall of the positioning cover (10), and a sliding groove is provided at the bottom of the inner part of the through groove (7). The slider and the sliding groove are slidably connected.

7. The spliced ​​cable busbar trunking according to claim 1, characterized in that: The outer wall of the busbar trunking body (1) is attached to the inner wall of the through groove (5).