A plug-in assembly and a plug-in box hoisting system
Patent Information
- Application Number
- CN202522228969.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-22
AI Technical Summary
The traditional method of fixing the plug box with threaded rods results in a lot of manpower being spent on installation, which is inconvenient and can easily lead to inaccurate plug-in connection between the plug and the busbar, posing a safety hazard.
The system employs a plug-in assembly and plug-in box hoisting system, including plug-in parts and plug-in bases. By adjusting the spacing of the limiting beams and the locking structure through movable parts, the plug-in box can be stably suspended and precisely positioned.
It enables safe, efficient, and reliable installation of the plug-in box, solves the problems of high manpower consumption and positioning difficulties in high-altitude operations, and ensures the stable connection of the power distribution system.
Smart Images

Figure CN224935324U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of busbar hoisting technology, and in particular to a plug-in assembly and plug-in box hoisting system. Background Technology
[0002] In low-voltage power distribution systems of industrial and civil buildings, busbar trunking is widely used due to its advantages such as large current carrying capacity, flexible installation, and strong expandability. In order to adapt to application scenarios such as large spaces and high-rise factories, plug-in boxes usually need to be installed below the busbar trunking by hoisting.
[0003] Currently, the common practice in the industry for hoisting and fixing plug-in boxes is to use threaded rods for fixation. The specific installation process is as follows: First, according to the design drawings, the installation position of the plug-in box is accurately marked on the building roof or steel structure; then, the top of the threaded rod is fixed to the building structure using expansion bolts or welding; finally, the plug-in box body is raised to the predetermined height and connected and fixed to the bottom of the threaded rod through the mounting holes on its top.
[0004] However, this traditional through-wire suspension rod fixing method has drawbacks: the plug-in box itself is quite heavy, requiring workers to lift and maintain it at a high position throughout the installation process, while simultaneously performing positioning and tightening operations. This process not only consumes a lot of manpower but is also extremely inconvenient to operate at heights, in narrow shafts, or other confined spaces, resulting in low installation efficiency. Furthermore, because the plug-in box is suspended and unstable during installation, relying solely on visual observation and manual adjustment can easily lead to misalignment between the plug of the plug-in box and the plug terminals of the busbar trunking. Misalignment can cause poor electrical contact, leading to increased contact resistance, causing localized overheating, and posing a risk of electrical fires under long-term operation, seriously threatening the safety of the power distribution system.
[0005] Therefore, there is an urgent need in this field for a novel plug-in box hoisting solution to overcome the shortcomings of the existing technologies and achieve safe, efficient and reliable installation. Utility Model Content
[0006] In this section, as well as in the specification summary and utility names of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this section, specification summary, and utility names, and such simplifications or omissions shall not be used to limit the scope of this utility.
[0007] To address the shortcomings of existing technologies, one objective of this utility model is to provide a plug-in assembly and a plug-in box hoisting system.
[0008] To achieve the above objectives, this utility model adopts the following technical solution: a plug-in assembly, comprising, A connector, comprising a connector rod and a hook groove disposed on one side of the connector rod and having an opening opposite to the insertion direction Z, and, The connector includes a connector sleeve that mates with the connector rod, a limiting beam that mates with the hook groove, and a movable component connecting the connector sleeve and the limiting beam.
[0009] The movable component is movable to adjust the distance D1 between the limiting beam and the hook groove in the insertion direction Z to be no greater than the depth D2 of the hook groove.
[0010] In a preferred embodiment of the plug-in assembly described herein, the movable component includes a slide groove, which is formed on one side of the plug-in sleeve. The limiting beam is slidably connected to the slide groove, and a limiting element is provided at the bottom of the limiting beam to prevent the limiting beam from disengaging from the slide groove.
[0011] In a preferred embodiment of the plug-in assembly described herein, the movable component includes a rotating shaft rotatably connected to one side of the plug-in rod, a limiting beam fixedly connected to the rotating shaft, a distance H1 between the limiting beam and the rotating shaft, a distance H2 between the center line of the rotating shaft and the hook groove, wherein H1 ≥ H2, and the limiting beam is locked when it rotates to the hook groove.
[0012] In a preferred embodiment of the plug-in assembly described herein, H1 = H2, the hook groove is an elastic element, and the hook groove includes a first end and a second end, wherein the first end is lower than the second end.
[0013] In a preferred embodiment of the plug-in assembly described herein, the limiting beam is slidably connected to the rotating shaft, the limiting beam is rotatably connected to the plug-in sleeve via the rotating shaft, and the limiting beam is also provided with a limiting element, the limiting element being able to adjust the distance D3 between the limiting beam and the movable part.
[0014] As a preferred embodiment of the plug-in assembly described herein, the movable member is movable to adjust the distance D1 between the limiting beam and the hook groove in the plugging direction Z to be greater than the depth D2 of the hook groove.
[0015] As a preferred embodiment of the plug-in assembly described in this utility model, baffles are also provided on both sides of the plug-in sleeve. The two sets of baffles extend obliquely in a direction away from each other with the center line of the plug-in sleeve as the axis of symmetry, thereby forming a V-shaped guide structure with the opening facing the plug-in direction Z.
[0016] Another object of the present invention is to provide a plug-in box hoisting system. To achieve the above object, the present invention provides the following technical solution: including, The housing includes a vertical retaining plate disposed on the housing, and, The bracket includes a clamping member disposed at the bottom of the bracket. The plug-in socket is located on the side of the enclosure, the plug-in component is located at the end of the bracket, and the busbar groove G is located between the enclosure and the bracket.
[0017] As a preferred embodiment of the plug-in box hoisting system described in this utility model, the clamping member includes a pressure plate and a connecting plate, the pressure plate is disposed at the bottom of the bracket, and the connecting plate is disposed on the pressure plate.
[0018] As a preferred embodiment of the plug-in box hoisting system described in this utility model, when the clamping member is installed on the bracket, the distance between it and the vertical clamping plate matches the size of the busbar groove G.
[0019] This utility model, through the cooperation between the designed plug-in parts and the plug-in socket, allows the plug box to be stably suspended on the bracket before precise fine-tuning and locking. This solves the problems of traditional installation methods, such as the need for manual lifting throughout the process, difficulty in alignment and easy misalignment, low installation efficiency, and safety hazards. It makes the installation of heavy-duty plug boxes in high-altitude and narrow spaces labor-saving, precise, and reliable, facilitating on-site construction and ensuring the stability of the power distribution system connection. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional structural diagram of the practical plug-in assembly.
[0022] Figure 2 This is a schematic diagram showing the insertion direction of this practical plug-in assembly.
[0023] Figure 3 This is a schematic diagram of the structure of embodiment 2 of this utility model.
[0024] Figure 4 This is a schematic diagram of the structure of embodiment 3 of this utility model.
[0025] Figure 5 This is a schematic diagram of the structure of embodiment 4 of this utility model.
[0026] Figure 6 This is a schematic diagram of the structure of the practical plug-in box hoisting system.
[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the practical hoisting support.
[0028] Figure 8 This is a schematic diagram of the assembly of this utility model with the busbar trunking. Detailed Implementation
[0029] To make the objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0030] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0031] 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 this utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0032] Example 1
[0033] Reference Figure 1 , 2 Figures 6-8 represent the first embodiment of this utility model. This embodiment provides a plug-in assembly that enables labor-saving, precise, and reliable installation of heavy-duty plug-in boxes in high-altitude and confined spaces, facilitating on-site construction and ensuring the stability of power distribution system connections. It includes a plug-in component 100, comprising a plug-in rod 101 and a hook groove 102 disposed on one side of the plug-in rod 101 with its opening facing away from the plugging direction Z. Furthermore, The plug-in socket 200 includes a plug-in sleeve 201 that mates with the plug-in rod 101, a limiting beam 202 that mates with the hook groove 102, and a movable part 203 that connects the plug-in sleeve 201 and the limiting beam 202.
[0034] Among them, the movable part 203 can be moved to adjust the distance D1 between the limiting beam 202 and the hook groove 102 in the insertion direction Z, which is not greater than the depth D2 of the hook groove 102.
[0035] Specifically, by driving the limiting beam 202 to move along the insertion direction Z, the distance D1 between the front end face of the limiting beam 202 and the bottom wall of the hook groove 102 in the insertion direction Z is precisely adjusted, ensuring that D1 is never greater than the depth D2 of the hook groove 102 in the locked state, so that the limiting beam 202 can be tightly attached to the bottom surface of the hook groove 102 to achieve reliable locking after the insertion rod 101 is inserted into the insertion sleeve 201.
[0036] Example 2
[0037] Reference Figure 3This is the second embodiment of the present invention, which provides another plug-in method, including: The movable component 203 includes a slide groove 203a, which is opened on one side of the plug sleeve 201. The limiting beam 202 is slidably connected to the slide groove 203a. A limiting component 204 is provided at the bottom of the limiting beam 202, which restricts the limiting beam 202 from disengaging from the slide groove 203a.
[0038] Specifically, the limiting beam 202 is embedded in the slide groove 203b to form a sliding connection. By driving the limiting beam 202 to slide along the insertion direction Z in the slide groove 203b, the distance D1 between the limiting beam 202 and the hook groove 102 can be adjusted.
[0039] The rest of the structure is the same as in Example 1.
[0040] Example 3
[0041] Reference Figure 4 This is the third embodiment of the present invention, which provides another plug-in method, including: The movable component 203 includes a rotating shaft 206 rotatably connected to one side of the plug rod 101, a limiting beam 202 fixedly connected to the rotating shaft 206, a distance of H1 between the limiting beam 202 and the rotating shaft 206, a distance of H2 between the center line of the rotating shaft 206 and the hook groove 102, H1≥H2, and the limiting beam 202 is locked when it rotates to the hook groove 102.
[0042] Specifically, when the limiting beam 202 rotates to the position of the hook groove 102, it can be locked in several ways: First, by radially screwing a screw into the end face of the rotating shaft 206 to press it against the inner ring of the bearing to achieve friction locking; second, by opening a positioning hole at the end of the rotating shaft 206 and forming a positioning lock with the spring pin on the plug rod; third, by setting a permanent magnet assembly that attracts each other on the contact surface between the limiting beam 202 and the hook groove 102 to achieve magnetic locking. When the limiting beam 202 is locked and does not spring back, the hook groove 102 is pulled up to be locked into the hook groove 102.
[0043] The rest of the structure is the same as in Example 1.
[0044] Example 4
[0045] Reference Figure 5 This is the fourth embodiment of the present invention, which provides another plug-in method, including: H1 = H2, the hook groove 102 is an elastic element, the hook groove 102 includes a first end 102a and a second end 102b, the first end 102a is lower than the second end 102b.
[0046] The first end 102a and the second end 102b of the hook groove 102 form an inclined structure with a height difference. When the plug rod 101 is inserted into the plug sleeve 201, the limiting beam 202 presses the first end 102a of the hook groove 102 to cause it to elastically deform and press down. After the limiting beam 202 passes the highest point of the first end 102a, the first end elastic 102a returns to its original position, causing the limiting beam 202 to be locked into the hook groove 102.
[0047] The rest of the structure is the same as in Example 1.
[0048] Example 5
[0049] Reference Figures 1-2 6. This is the fifth embodiment of the present invention, which provides another plug-in method, including: Furthermore, the limiting beam 202 is slidably connected to the rotating shaft 206, and the limiting beam 202 is rotatably connected to the plug sleeve 201 via the rotating shaft 206. The limiting beam 202 is also provided with a limiting element 204, which can adjust the distance D3 between the limiting beam 202 and the moving part 203.
[0050] Specifically, the limiting beam 202 is hinged to the insertion sleeve 201 via the rotating shaft 206. The limiting component is the locking screw N set on the limiting beam 202. By adjusting the locking screw N, the axial distance D3 between the limiting beam 202 and the rotating shaft can be changed, so that the limiting beam 202 can move in the insertion direction Z and can deflect at multiple angles.
[0051] Furthermore, the movable part 203 is movable to adjust the distance D1 between the limiting beam 202 and the hook groove 102 in the insertion direction Z to be greater than the depth D2 of the hook groove 102.
[0052] Specifically, when the connector 100 is disengaged from the connector 200, it is only necessary to ensure that the distance D1 of the hook groove 102 in the insertion direction Z is greater than the depth D2 of the hook groove 102 to disengage it.
[0053] The plug sleeve 201 is also provided with baffles 205 on both sides. The two sets of baffles 205 extend in an inclined direction away from each other with the center line of the plug sleeve 201 as the axis of symmetry, thereby forming a V-shaped guide structure with the opening facing the plugging direction Z.
[0054] Furthermore, a metal baffle 205 is fixedly installed on each side of the plug sleeve 201. The minimum spacing of the V-shaped structure is greater than the diameter of the plug rod 101, and the maximum spacing is much greater than the diameter of the plug rod 101, so that even if there is a positional deviation during the insertion process, the plug rod 101 can be smoothly guided into the plug sleeve 201 to complete precise alignment.
[0055] In summary, the connector 100 can be equipped with a single hook slot 102 that cooperates with a single limiting beam 202 on the connector base 200 to achieve single-point suspension. The connector 100 can also be equipped with two or more hook slots 102 that cooperate with two or more corresponding limiting beams 202 on the connector base 200 to achieve multi-point suspension.
[0056] This utility model mainly consists of two parts: a connector 100 and a connector base 200. The connector 100 is fixedly installed on the busbar trunking G through its own structure. A hook groove 102 is welded onto the connector 100. During installation, the operator inserts the connector 100 into the connector base 200, causing the limiting beam 202 to be directly suspended from the hook groove 102 of the connector 100. Subsequently, the operator operates the limiting member 204, which is a bolt and nut mechanism, on the limiting beam 202. By tightening the nut, the connector base 200 is finally connected to the busbar trunking G.
[0057] Combining Examples 2 and 3, the remaining structures are the same as in Example 1.
[0058] Example 6
[0059] Reference Figures 6-8 This is the sixth embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a connector box hoisting system, which solves the problem that the connector box itself is heavy and requires workers to lift and maintain it at a high altitude throughout the installation process. The system includes: The housing 300 includes a vertical clamping plate 301 disposed on the housing 300. And, The bracket 400 includes a clamp 401 disposed at the bottom of the bracket.
[0060] The plug-in socket 200 is located on the side of the enclosure 300, the plug-in component 100 is located at the end of the bracket 400, and the busbar trunking G is located between the enclosure 300 and the bracket 400.
[0061] The bracket 400 consists of two parallel C-shaped channel steels as supports and a rectangular steel plate as a connecting plate. The two ends of the connecting plate are connected to the middle of the two C-shaped channel steels by bolts to form a stable "well" shaped frame. This frame structure provides high strength and stability and can reliably bear the weight of the box. Its symmetrical design makes the force even and avoids the shaking that may be caused by single-point support.
[0062] Furthermore, the clamping member 401 includes a pressure plate 402 and a connecting plate 403. The pressure plate 402 is disposed at the bottom of the bracket 400, and the connecting plate 403 is disposed on the pressure plate 402.
[0063] During installation, the guide screws on the busbar trunking G can be embedded in the clamping member 401, which enables the connector 100 to be quickly pre-positioned on the busbar trunking G and prevents the bracket 400 from moving along the length of the busbar trunking G.
[0064] Furthermore, when the clamping member 401 is mounted on the bracket 400, the distance between it and the vertical clamping plate 301 matches the size of the busbar groove G.
[0065] The clamping component 401 and the vertical clamping plate 301 are located on the upper and lower sides of the busbar trunking G housing after installation. The vertical distance between them is designed to be basically consistent with the height of the busbar trunking G housing. When the clamping component 401 and the vertical clamping plate 301 are tightened at the same time, they clamp the busbar trunking G housing from both the upper and lower directions, forming a double fixation, which greatly enhances the rigidity and stability of the connection between the entire system and the busbar trunking G, and effectively resists vibration and accidental impact.
[0066] In summary, firstly, the clamping component 401 on the bracket 400 is used to fasten it to the outer shell of the busbar trunking G, forming a stable mounting base. Then, the operator uses the handle on the side of the enclosure 300 to lift it, so that the limiting beam 202 is suspended on the hook slot 102. At this time, the weight of the enclosure 300 is completely borne by the bracket. Finally, it is locked by the vertical locking plate 301 on the enclosure 300. The vertical locking plate 301 and the clamping component 401 together form a double clamping of the outer shell of the busbar trunking G, ensuring a stable and reliable connection.
[0067] The remaining structure is the same as in Example 5.
[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model 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 this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A plug-in assembly, characterized in that: include, A connector (100) includes a connector rod (101) and a hook groove (102) disposed on one side of the connector rod (101) and having an opening opposite to the insertion direction Z; and, The plug-in socket (200) includes a plug-in sleeve (201) that mates with the plug-in rod (101), a limiting beam (202) that mates with the hook groove (102), and a movable member (203) connecting the plug-in sleeve (201) and the limiting beam (202). The movable part (203) is movable to adjust the distance D1 between the limiting beam (202) and the hook groove (102) in the insertion direction Z to be no greater than the depth D2 of the hook groove (102).
2. The plug-in assembly as described in claim 1, characterized in that: The movable component (203) includes a slide groove (203a), which is formed on one side of the plug sleeve (201). The limiting beam (202) is slidably connected to the slide groove (203a). A limiting component (204) is provided at the bottom of the limiting beam (202), which restricts the limiting beam (202) from disengaging from the slide groove (203a).
3. The plug-in assembly as described in claim 1, characterized in that: The movable part (203) includes a rotating shaft (206) rotatably connected to one side of the plug rod (101), a limiting beam (202) fixedly connected to the rotating shaft (206), the distance between the limiting beam (202) and the rotating shaft (206) is H1, the distance from the center line of the rotating shaft (206) to the hook groove (102) is H2, H1≥H2, and the limiting beam (202) is locked when it rotates to the hook groove (102).
4. The plug-in assembly as described in claim 3, characterized in that: H1 = H2, the hook groove (102) is an elastic element, the hook groove (102) includes a first end (102a) and a second end (102b), the first end (102a) is lower than the second end (102b).
5. The plug-in assembly as described in claim 2 or 3, characterized in that: The limiting beam (202) is slidably connected to the rotating shaft (206), and the limiting beam (202) is rotatably connected to the plug sleeve (201) via the rotating shaft (206). The limiting beam (202) is also provided with a limiting component (204), and the limiting component (204) can adjust the distance D3 between the limiting beam (202) and the movable component (203).
6. The plug-in assembly as described in claim 5, characterized in that: The movable component (203) is movable to adjust the distance D1 between the limiting beam (202) and the hook groove (102) in the insertion direction Z to be greater than the depth D2 of the hook groove (102).
7. The plug-in assembly as claimed in claim 6, characterized in that: The plug sleeve (201) is also provided with baffles (205) on both sides. The two sets of baffles (205) extend incline away from each other with the center line of the plug sleeve (201) as the axis of symmetry, thereby forming a V-shaped guide structure with the opening facing the plugging direction Z.
8. A plug-in box hoisting system, characterized in that: include, The housing (300) includes a vertical card plate (301) disposed on the housing (300); and, A bracket (400) includes a clamp (401) disposed at the bottom of the bracket. The plug-in socket (200) is located on the side of the enclosure (300), the plug-in piece (100) is located at the end of the bracket (400), and the busbar groove G is located between the enclosure (300) and the bracket (400).
9. The plug-in box hoisting system as described in claim 8, characterized in that: The clamping member (401) includes a pressure plate (402) and a connecting plate (403). The pressure plate (402) is disposed at the bottom of the bracket (400), and the connecting plate (403) is disposed on the pressure plate (402).
10. The plug-in box hoisting system as described in claim 8 or 9, characterized in that: When the clamping member (401) is mounted on the bracket (400), the distance between it and the vertical clamping plate (301) matches the size of the busbar groove G.
