A low-voltage, high-density busbar trunking connector plug-in structure

The busbar trunking connector plug-in structure with composite structure design solves the problem of connection failure of low-voltage dense busbar trunking under vibration or dynamic load, and improves the stability of the system and the convenience of installation.

CN121546376BActive Publication Date: 2026-06-30WETOWN ELECTRIC GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WETOWN ELECTRIC GRP CO LTD
Filing Date
2025-11-05
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing low-voltage high-density busbar trunking is connected by a single connector during docking, which is prone to connection failure due to external force vibration, thus reducing system stability.

Method used

The composite structure design, consisting of components such as outer shell, plug-in base, positioning platform, threaded column, connecting sleeve and limiting component, achieves tight restriction of the threaded column through the synergistic effect of threaded connection and linkage seat, thereby enhancing structural stability.

Benefits of technology

This improves the anti-sway capability of busbar joints, ensuring the stability of power transmission and the reliability of installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to a low-voltage, high-density busbar trunking connector plug-in structure, comprising a housing and a plug-in socket. A conductor is mounted on the housing, which is the core conductive part of the busbar trunking, used to transmit electrical energy and is the main current-carrying component. Side plates are mounted on the housing near the conductor, positioned to the side of the conductor, and the plug-in socket is located to the side of a pair of side plates. This design ensures precise installation of the plug-in socket by setting a positioning platform on the housing, reducing installation errors. The matching design of the positioning platform and the plug-in socket enhances the stability of the structure, ensuring the reliability of the busbar trunking connector during operation. Furthermore, the threaded connection design of the threaded post, connecting sleeve one, and connecting sleeve two, through the synergistic action of the limiting component and the linkage seat, causes the inner plate to bend towards the threaded post, achieving tight constraint on the threaded post. This improves the anti-shaking ability of the connector structure, thereby enhancing the stability of the plug-in structure.
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Description

Technical Field

[0001] This invention belongs to the technical field of power transmission equipment, specifically a low-voltage dense busbar trunking connector plug-in structure. Background Technology

[0002] With the rapid development of power systems, low-voltage compact busbar trunking, as a highly efficient and reliable power transmission device, is widely used in power distribution systems of industrial, commercial, and civil buildings. The connector structure of the busbar trunking is a key component, directly affecting the stability, safety, and ease of installation and maintenance of power transmission. In existing technologies, a pair of low-voltage compact busbar trunking systems are connected using a single connector. After prolonged installation, under vibration or dynamic load conditions, the connector is prone to vibration or failure due to external forces, reducing the overall stability of the system.

[0003] In view of this, a low-voltage dense busbar trunking connector plug-in structure is proposed. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] Given the following technical problems in the prior art: In the prior art, when a pair of low-voltage dense busbar trunking is connected, they are connected by a single connector. After long-term installation, under vibration or dynamic load conditions, the connector is prone to vibration or failure due to external force, which reduces the overall stability of the system.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a low-voltage dense busbar trunking connector plug-in structure, including a housing and a plug-in socket;

[0007] The outer shell is equipped with a conductor, which is the core conductive part of the busbar trunking and is used to transmit electrical energy. It is the main current-carrying component.

[0008] The outer shell is provided with a side plate near the conductor, the side plate is located on the side of the conductor, the plug is placed on the side of a pair of side plates, a positioning platform is provided on the other side of the pair of side plates, a threaded post is provided on the positioning platform, the threaded post passes through the side plate and extends out of the plug.

[0009] A connecting sleeve is installed on the outward-facing side of the plug-in seat. The connecting sleeve is located on the outer periphery of the threaded post and is threadedly connected to the threaded post. An extension tube is arranged on the side of the connecting sleeve that is offset from the side plate. Several connecting parts are arranged on the other part of the extension tube. The circumferential surface of the extension tube is milled with threaded texture. The connecting parts include an inner plate and an outer plate, with the inner plate located at the inner edge of the outer plate.

[0010] Connecting sleeve one is provided with connecting sleeve two outside the extension cylinder, and connecting sleeve two has a threaded texture milled on its inner edge, and connecting sleeve two is threadedly connected to the extension cylinder; connecting sleeve two has a limit member provided on its inner edge.

[0011] As a preferred technical solution for a low-voltage, high-density busbar trunking connector plug-in structure, the inner edge of the upper opening of the second connecting sleeve is provided with a shielding part; the second connecting sleeve and the limiting member are threaded together, and the shielding part restricts the top of the threaded part of the limiting member; the upper part of the limiting member has an operating section that extends out of the second connecting sleeve, which facilitates the use of tools for subsequent maintenance work; the outermost contour of the limiting member is milled with a threaded pattern, and the threaded pattern of the limiting member matches the threaded pattern of the inner edge of the second connecting sleeve.

[0012] As a preferred technical solution for a low-voltage, high-density busbar trunking connector plug-in structure, the circumferential surface of the protruding threaded column extending beyond the connecting sleeve two and the limiting member is milled with a second disconnecting groove, and the docking position of the connecting sleeve one and the threaded column does not have the second disconnecting groove, ensuring the stability of the connecting sleeve one and the threaded column after docking; the inner edge of the upper half of the limiting member leaves space between the threaded column and the middle position, facilitating the normal passage of the threaded column; the bottom end of the limiting member acts on the position of the inner plate, causing the inner plate to bend inward, thus restricting the threaded column.

[0013] As a preferred technical solution for a low-voltage dense busbar trunking connector plug-in structure, the inner plate is provided with a linkage seat on its circumferential surface. The linkage seat is located in the middle position between the inner plate and the limiting member. When the connecting sleeve two and the limiting member are combined onto the connecting sleeve one, the limiting member pushes against the linkage seat and causes the inner plate to bend and change in the direction of the thread column.

[0014] As a preferred technical solution for a low-voltage, high-density busbar trunking connector plug-in structure, a limiting member is disposed at the midpoint between the outer plate and the limiting member. This limiting member restricts the state of the outer plate and the limiting member, and also restricts the inward bending of the inner plate. When the connecting sleeve two is rotated, the limiting member is synchronously linked and embedded in the midpoint between the inner and outer plates. The limiting member includes a bevel seat one and a bevel seat two. The bevel seat one is installed on the inner edge of the outer plate, and the bevel seat two is installed on the circumferential surface of the limiting member. Based on the bevel seat one and the bevel seat two... It can ensure that the whole assembly is not easily affected by vibration factors after assembly; the second slope seat is intermittently distributed with equal included angles on the circumference of the limiting member, and there is a disconnection channel between each pair of second slope seats. When the second connecting sleeve moves to the edge position of the first connecting sleeve, the first slope seat will cooperate with the second slope seat at the corresponding position; the gap between two adjacent second slope seats is a space, in which the first slope seat moves against the outer plate in linkage under the action of the second slope seat, and the outer plate will bend outward, so that the first slope seat can move to the corresponding second slope seat space position.

[0015] As a preferred technical solution for a low-voltage dense busbar trunking connector plug-in structure, the first slope seat is milled with a limiting edge and a linkage edge, and the second slope seat is milled with a limiting edge and a linkage edge. When the linkage edge 1 touches the linkage edge 2, the outer plate will bend. When the limiting edge 1 touches the limiting edge 2, the position of the limiting member can be limited.

[0016] As a preferred technical solution for a low-voltage dense busbar trunking connector plug-in structure, the second limiting edge is provided with a second protrusion, and the first limiting edge is provided with a first protrusion; when the first and second protrusions come into contact, they can restrict the rotational movement between the limiting member and the connecting sleeve. One side of the first protrusion is a slope, which is the rotating edge that comes into contact when combined.

[0017] As a preferred technical solution for a low-voltage, high-density busbar trunking connector plug-in structure, the textured surface of the inner edge of the connector is defined as the textured portion. A number of elongated grooves are arranged along the inner edge of the connector, and the elongated grooves divide the textured portion on a single inner plate into several groups. Contact strips are installed in the elongated grooves. The contact strips are gel-type. After the connector is assembled, the contact strips on the connector are tightly attached to the threaded post by the limiting component, thereby improving the restrictiveness of the inner plate.

[0018] As a preferred technical solution for a low-voltage dense busbar trunking connector plug-in structure, a boss is provided on the inner edge of the part of the inner plate that deviates from the connecting sleeve one. Side one and side two are milled on the boss. The side of the boss facing outward is side one, and the side of the boss facing inward is side two.

[0019] As a preferred technical solution for a low-voltage dense busbar trunking connector plug-in structure, the arc between the downward inclined side of the first side and the second side is X, and the arc between the upward inclined side of the first side and the second side is Y. By relying on the configuration of the first and second sides, the boss is in the thread pattern of the threaded column.

[0020] The beneficial effects of this invention are:

[0021] This solution ensures precise installation of the plug-in socket by setting a positioning platform on the outer shell, reducing installation errors. The matching design between the positioning platform and the plug-in socket enhances the stability of the structure and ensures the reliability of the busbar trunking joint during operation. Furthermore, the threaded connection design of the threaded post, connecting sleeve one, and connecting sleeve two, through the synergistic action of the limiting component and the linkage seat, causes the inner plate to bend towards the threaded post, achieving tight restriction of the threaded post. This improves the anti-shaking ability of the joint structure, thereby enhancing the stability of the plug-in structure. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 Based on the present invention Figure 1 Schematic diagram of the cross section of the center connector.

[0025] Figure 3 This is a schematic diagram of the first connecting sleeve and the second connecting sleeve of the present invention.

[0026] Figure 4 Based on the present invention Figure 3 Cross-sectional diagram.

[0027] Figure 5 Based on the present invention Figure 4 Schematic diagram at point A in the middle.

[0028] Figure 6 This is an exploded view of the connecting sleeve 1, connecting sleeve 2, and limiting member of the present invention.

[0029] Figure 7 This is a schematic diagram of the connector of the present invention.

[0030] Figure 8 This is a schematic diagram of the boss of the present invention.

[0031] Figure 9 Based on the present invention Figure 8 Cross-sectional diagram.

[0032] Figure 10 This is a schematic diagram of the connection between the threaded column and the boss in this invention.

[0033] Figure 11 This is a schematic diagram of the slope seat of the present invention.

[0034] Figure 12 This is a schematic diagram of the slope seat of the present invention from a slightly upward angle.

[0035] Figure label:

[0036] 100. Outer shell; 101. Conductor; 102. Positioning platform; 103. Threaded post; 104. Disconnecting groove two; 200. Socket; 201. Side plate; 300. Connecting sleeve one; 301. Connecting piece; 302. Inner plate; 302a. Textured part; 302b. Long groove; 302c. Contact strip; 303. Outer plate; 304. Boss; 304a. Side one; 304b 1. Side 2; 400. Connecting sleeve 2; 401. Covering part; 500. Limiting part; 600. Linkage seat; 700. Limiting part; 701. Slope seat 1; 701a. Limiting side 1; 701b. Protrusion 1; 701c. Linkage side 1; 702. Slope seat 2; 702a. Limiting side 2; 702b. Protrusion 2; 702c. Linkage side 2; 703. Disconnecting ditch 1. Detailed Implementation

[0037] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0040] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0041] Example, refer to Figure 1 , 2 1, 2, and 3, 7, a low-voltage dense busbar trunking connector plug-in structure, including a housing 100 and a plug-in socket 200;

[0042] A conductor 101 is disposed on the outer casing 100, wherein the conductor 101 is the core conductive part of the busbar trunking, used to transmit electrical energy, and is the main current-carrying component.

[0043] A side plate 201 is installed on the outer casing 100 near the conductor 101. The side plate 201 is located on the side of the conductor 101. The plug socket 200 is placed on the side of the pair of side plates 201. A positioning platform 102 is installed on the other side of the pair of side plates 201. A threaded post 103 is installed on the positioning platform 102. The threaded post 103 passes through the side plate 201 and extends out of the plug socket 200.

[0044] A connecting sleeve 300 is installed on the outward-facing side of the plug socket 200. The inner edge of the connecting sleeve 300 is provided with a threaded pattern. The connecting sleeve 300 is located on the outer periphery of the threaded post 103 and is threadedly connected to the threaded post 103. An extension tube is provided on the side of the connecting sleeve 300 that is offset from the side plate 201. Several connecting parts 301 are provided on the other part of the extension tube. The peripheral surface of the extension tube is milled with threaded patterns. The connecting parts 301 include an inner plate 302 and an outer plate 303. The inner plate 302 is located on the inner edge of the outer plate 303.

[0045] Connecting sleeve 2 400 is arranged outside the extension cylinder of connecting sleeve 1 300, and the inner edge of connecting sleeve 2 400 is milled with threaded texture, and connecting sleeve 2 400 is threadedly engaged with the extension cylinder; a limit member 500 is arranged on the inner edge of connecting sleeve 2 400.

[0046] Reference Figure 5 and 6 The upper opening of the connecting sleeve 2 400 is provided with a blocking part 401; the connecting sleeve 2 400 and the limiting member 500 are threaded together, and the blocking part 401 restricts the top of the threaded part of the limiting member 500; the upper part of the limiting member 500 has an operating section that extends out of the connecting sleeve 2 400, which can facilitate the use of tools for later maintenance work; the outermost contour of the limiting member 500 is milled with a threaded pattern, and the threaded pattern of the limiting member 500 matches the threaded pattern of the inner edge of the connecting sleeve 2 400.

[0047] Reference Figure 3 and 6 The circumferential surface of the threaded column 103 extending beyond the connecting sleeve 2 400 and the limiting member 500 is milled with a disconnecting groove 2 104, and the docking position of the connecting sleeve 1 300 and the threaded column 103 does not have the disconnecting groove 2 104, ensuring the stability of the connecting sleeve 1 300 and the threaded column 103 after docking; the inner edge of the upper half of the limiting member 500 and the middle position of the threaded column 103 are left with space to facilitate the normal passage of the threaded column 103; the bottom end of the limiting member 500 acts on the position of the inner plate 302, and the inner plate 302 bends inward to restrict the threaded column 103.

[0048] Reference Figure 5 The inner plate 302 is provided with a linkage seat 600 on its circumferential surface. The linkage seat 600 is located in the middle position between the inner plate 302 and the limiting member 500. When the connecting sleeve 2 400 and the limiting member 500 are combined onto the connecting sleeve 1 300, the limiting member 500 pushes against the linkage seat 600 and causes the inner plate 302 to bend in the direction of the threaded column 103.

[0049] Reference Figure 4 , 5 A limiting member 700 is disposed at the intermediate position between the outer plate 303 and the limiting member 500. The limiting member 700 is used to limit the state of the outer plate 303 and the limiting member 500, and can limit the inward bending state of the inner plate 302. When the connecting sleeve 2 400 is rotated, the limiting member 500 is synchronously linked and embedded in the intermediate position between the inner plate 302 and the outer plate 303. The limiting member 700 includes a first bevel seat 701 and a second bevel seat 702. The first bevel seat 701 is installed on the inner edge of the outer plate 303, and the second bevel seat 702 is installed on the circumferential surface of the limiting member 500. The first bevel seat 701 and the second bevel seat 702 can ensure the overall After assembly, it is not easily affected by vibration factors; the second slope seat 702 is intermittently distributed with equal included angles on the circumference of the limiting member 500, and there is a disconnection channel 703 between each pair of second slope seats 702. When the second connecting sleeve 400 moves to the edge position of the first connecting sleeve 300, the first slope seat 701 will cooperate with the corresponding second slope seat 702; the gap position of two adjacent second slope seats 702 is a space, in which the first slope seat 701, under the action of the second slope seat 702, moves against the outer plate 303, and the outer plate 303 will bend outward, so that the first slope seat 701 can move to the corresponding second slope seat 702 space position.

[0050] Maintenance steps: Use the appropriate tool to limit the protruding part of the limiting member 500, and align the tool that is compatible with the outer periphery of the connecting sleeve 2 400 with the outer periphery of the connecting sleeve 2 400. Apply torque to the tool outside the connecting sleeve 2 400, and then apply torque to the limiting member 500. Adjust it so that the disconnected trench 1 703 corresponds to the slope seat 1 701. At this time, apply a force to the limiting member 500 away from the connecting sleeve 1 300 to remove it. Then, operate the connecting sleeve 1 300 by twisting to complete the operation.

[0051] Reference Figure 11 and 12 The slope seat 701 is milled with a limiting edge 701a and a linkage edge 701c, and the slope seat 702 is milled with a limiting edge 702a and a linkage edge 702c. When the linkage edge 701c contacts the linkage edge 702c, the outer plate 303 will bend. When the limiting edge 701a contacts the limiting edge 702a, it can limit the position of the limiting member 500. The limiting edge 702a is equipped with a protrusion 702b, and the limiting edge 701a is equipped with a protrusion 701b. When the protrusions 701b and 702b contact, they can limit the rotational movement between the limiting member 500 and the connecting sleeve 300. The shape features of the slope seat 701 and slope seat 702 ensure a non-returning effect after docking. When the linkage edge 701c and linkage edge 702c come into contact, the outer plate 303 bends, facilitating the continued movement of the limiting member 500. When the protrusions 701b and 702b come into contact, they restrict the rotational movement between the limiting member 500 and the connecting sleeve 300. During the overall assembly, the limiting edge 701a and limiting edge 702a do not come into contact. When the first protrusion 701b and the second protrusion 702b are assembled together, no other factors will be generated. During maintenance, the connecting sleeve 400 outside the limiting member 500 is operated first, followed by the operation of the limiting member 500. The limiting member 500 is not affected by the threaded connection with the connecting sleeve 400 during the rotation operation. At this time, the limiting member 500 can adjust the slope seat 701 and the disconnected groove 703 to the corresponding state. One side of the first protrusion 701b is a slope, which is the rotating edge that is touched during assembly.

[0052] Reference Figure 7The textured surface of the inner edge of the connector 301 is defined as the textured part 302a. A number of long grooves 302b are arranged on the inner edge of the connector 301. The long grooves 302b divide the textured part 302a on a single inner plate 302 into several groups. A contact strip 302c is installed in the long groove 302b. The contact strip 302c is gel-type. After the connector sleeve 300 is assembled, the contact strip 302c on the connector 301 is tightly attached to the thread post 103 by the limiting member 500, thereby improving the restrictiveness of the inner plate 302.

[0053] Reference Figure 8 , 9 In section 10, the inner plate 302 is provided with a boss 304 at the inner edge of the part that deviates from the connecting sleeve 300. The boss 304 is milled with a side 1 304a and a side 2 304b. The side of the boss 304 facing outward is side 1 304a, and the side of the boss 304 facing inward is side 2 304b. The arc between the side 1 304a that is inclined downward and side 2 304b is X, and the arc between the side 1 304a that is inclined upward and side 2 304b is Y. Due to the arrangement of side 1 304a and side 2 304b, the boss 304 is in the thread pattern of the threaded post 103.

[0054] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A low-voltage, high-density busbar trunking connector plug-in structure, characterized in that: Includes a housing (100) and a socket (200); A conductor (101) is disposed on the outer shell (100), and a positioning platform (102) is disposed in both the upper and lower outer shells of the outer shell (100). The outer casing (100) is provided with a side plate (201) near the conductor (101), the side plate (201) is located on the side of the conductor (101), the plug socket (200) is placed on the side of the pair of side plates (201), and a positioning platform (102) is provided on the other side of the pair of side plates (201). A threaded post (103) is provided on the positioning platform (102), the threaded post (103) passes through the side plate (201) and extends out of the plug socket (200); The plug-in socket (200) has a connecting sleeve (300) on its outward-facing side. The connecting sleeve (300) is located on the outer periphery of the threaded post (103) and is threadedly connected to the threaded post (103). An extension tube is arranged on the side of the connecting sleeve (300) that is away from the side plate (201). Several connecting parts (301) are arranged on the other part of the extension tube. The circumferential surface of the extension tube is milled with threaded texture. The connecting part (301) includes an inner plate (302) and an outer plate (303). The inner plate (302) is located at the inner edge of the outer plate (303). Connecting sleeve one (300) is provided with connecting sleeve two (400) outside the extension cylinder, and the inner edge of connecting sleeve two (400) is milled with threaded texture, and connecting sleeve two (400) is threadedly engaged with the extension cylinder; the inner edge of connecting sleeve two (400) is provided with a limiting member (500). A limiting member (700) is disposed at the middle position between the outer plate (303) and the limiting member (500). The limiting member (700) includes a first slope seat (701) and a second slope seat (702). The first slope seat (701) is installed on the inner edge of the outer plate (303), and the second slope seat (702) is installed on the circumferential surface of the limiting member (500). The second slope seats (702) are intermittently distributed at equal angles with respect to the circumferential surface of the limiting member (500), and there is a disconnected channel (703) between each pair of second slope seats (702). The slope seat one (701) is milled with a limiting edge one (701a) and a linkage edge one (701c), and the slope seat two (702) is milled with a limiting edge two (702a) and a linkage edge two (702c).

2. The low-voltage dense busbar trunking connector plug-in structure according to claim 1, characterized in that: The upper opening of the connecting sleeve 2 (400) is provided with a blocking part (401); the connecting sleeve 2 (400) and the limiting member (500) are threaded together; the upper part of the limiting member (500) has an operating section extending outward, the operating section of the limiting member (500) extends outward from the connecting sleeve 2 (400), and the outermost contour of the limiting member (500) is milled with a threaded pattern, the threaded pattern of the limiting member (500) and the threaded pattern of the inner edge of the connecting sleeve 2 (400) are matched.

3. The low-voltage dense busbar trunking connector plug-in structure according to claim 1, characterized in that: The circumferential surface of the threaded rod (103) extending beyond the connecting sleeve (400) and the limiting member (500) is milled with a second disconnecting groove (104), and the docking position of the connecting sleeve (300) and the threaded rod (103) does not have the second disconnecting groove (104); the inner edge of the upper half of the limiting member (500) and the middle position of the threaded rod (103) are left with space.

4. The low-voltage dense busbar trunking connector plug-in structure according to claim 1, characterized in that: The inner plate (302) is provided with a linkage seat (600) on its circumferential surface, and the linkage seat (600) is located in the middle position between the inner plate (302) and the limiting member (500).

5. The low-voltage dense busbar trunking connector plug-in structure according to claim 1, characterized in that: The second limiting edge (702a) is provided with a second protrusion (702b), and the first limiting edge (701a) is provided with a first protrusion (701b), one side of the first protrusion (701b) being a slope edge.

6. The low-voltage dense busbar trunking connector plug-in structure according to claim 1, characterized in that: The textured surface of the inner edge of the connector (301) is defined as the textured portion (302a). A number of long grooves (302b) are arranged at the inner edge of the connector (301). The long grooves (302b) divide the textured portion (302a) on a single inner plate (302) into several groups. A contact strip (302c) is installed in the long groove (302b). The contact strip (302c) is gel-type.

7. The low-voltage dense busbar trunking connector plug-in structure according to claim 1, characterized in that: The inner plate (302) is provided with a boss (304) at the inner edge of the part that deviates from the connecting sleeve (300). The boss (304) is milled with a side edge (304a) and a side edge (304b). The side of the boss (304) facing outward is side edge (304a), and the side of the boss (304) facing inward is side edge (304b).