Bus duct with adjustable inner cavity space

Abstract

The utility model relates to the technical field of bus ducts, in particular to a bus duct capable of adjusting inner cavity space, which comprises a bus duct shell, the bus duct shell comprises a first telescopic plate, bottom plates are symmetrically arranged on two sides of the first telescopic plate in a sliding manner, a plurality of fixed columns distributed at equal intervals are arranged in the middle of the bottom end face of the first telescopic plate, and threaded columns are arranged at the bottoms of the fixed columns. The threaded column is sleeved with a telescopic frame, the two ends of the telescopic frame are fixedly connected with the bottom end faces of the two bottom plates respectively, a second telescopic plate is arranged on the top of the first telescopic plate, cover plates are symmetrically connected to the two sides of the second telescopic plate in a sliding mode, and the cover plates are connected with the bottom plates through side plates. According to the bus duct, the space in the width direction of the bus duct can be adjusted according to requirements, so that the number of accommodated conducting bars can be adjusted, the practicability is high, and the bus duct has certain flexibility and adaptability while the overall stability is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of bus ducts, and specifically relates to a bus duct capable of adjusting the inner cavity space. Background Technique

[0002] A bus duct is a closed metal device composed of copper and aluminum busbars, used to distribute relatively high power to each component of a decentralized system. It has the characteristics of series matching, commercial production, small volume, large capacity, short design and construction period, non-combustible, long service life, etc., so it has increasingly replaced wire and cable in indoor low-voltage power transmission trunk line engineering projects. The bus duct includes an upper cover plate, a lower cover plate and two side plates, and busbars are placed in the accommodating cavity formed between the upper cover plate, the lower cover plate and the side plates.

[0003] Most of the side plates on the left and right sides of the current bus duct's conductive bars are fixed structures, which results in a relatively fixed space defined by the accommodating cavity. Each bus duct can only be applicable to a bus with a fixed width. For buses with different specifications, the bus duct must be replaced, which increases the limitations of the bus duct and raises the cost. Content of the Utility Model

[0004] The purpose of the utility model is to address the deficiencies of the prior art by providing a bus duct capable of adjusting the inner cavity space, so as to solve the problem that most of the side plates on the left and right sides of the current bus duct's conductive bars are fixed structures, which results in a relatively fixed space defined by the accommodating cavity. Each bus duct can only be applicable to a bus with a fixed width. For buses with different specifications, the bus duct must be replaced, which increases the limitations of the bus duct and raises the cost.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A bus duct capable of adjusting the inner cavity space includes a bus duct housing. The bus duct housing includes a first telescopic plate. Bottom plates are symmetrically and slidably arranged on both sides of the first telescopic plate. A number of equally spaced fixed columns are arranged in the middle of the bottom end face of the first telescopic plate. A threaded column is arranged at the bottom of the fixed column. A telescopic frame is sleeved on the threaded column. Both ends of the telescopic frame are fixedly connected to the bottom end faces of the two bottom plates respectively. A second telescopic plate is arranged on the top of the first telescopic plate. Cover plates are symmetrically and slidably connected to both sides of the second telescopic plate. The cover plates and the bottom plates are connected by side plates.

[0007] As a preferred technical solution of the utility model, the telescopic frame is composed of a plurality of telescopic units connected. Each telescopic unit includes two connecting pieces movably connected in a cross shape. One of the connecting pieces is fixedly connected to a fixing plate sleeved on the threaded column at the bottom. A first tooth surface is arranged on the bottom end face of the fixing plate.

[0008] As a preferred technical solution of the present utility model, a limiting plate located at the bottom of the telescopic frame is detachably provided on the threaded column. A second tooth surface that engages with the first tooth surface is provided on the top end surface of the limiting plate. A threaded reinforcement column in the shape of a hollow cylinder is provided on the bottom end surface of the limiting plate, and a docking hole penetrating the limiting plate and the second tooth surface is provided on the threaded reinforcement column.

[0009] As a preferred technical solution of the present utility model, a fixing seat is screwed on the threaded column at the bottom of the limiting plate. One end of the fixing seat is provided with a reinforcement column connection end connected to the threaded reinforcement column, and the other end of the fixing seat is provided with a threaded column connection end connected to the threaded column, and the threaded column connection end is communicated with the reinforcement column connection end.

[0010] As a preferred technical solution of the present utility model, a plurality of reinforcing ribs are uniformly distributed on the bottom end surface of the first telescopic plate, and a plurality of reinforcing grooves for inserting the reinforcing ribs are provided on the bottom plate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Through the setting of the telescopic frame, the present utility model can adjust the space in the width direction of the busbar groove according to requirements, so as to realize the adjustment of the number of conductive bars that can be accommodated. It solves the problem that the space defined by the existing busbar groove accommodation cavity is relatively fixed, and each busbar can only be applicable to a busbar with a fixed width. For busbars with different specifications, the busbar groove must be replaced, which increases the limitation of the busbar groove and raises the cost. The device has strong practicability and can have a certain degree of flexibility and adaptability while maintaining overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the busbar groove housing of the present utility model after stretching;

[0015] Figure 3 is a schematic structural diagram of the telescopic frame of the present utility model;

[0016] Figure 4 is a cross-sectional view of the fixing seat of the present utility model;

[0017] In the figure: 1. Busbar trunking housing; 11. First telescopic plate; 111. Fixed column; 112. Threaded column; 113. Reinforcing rib; 12. Bottom plate; 121. Reinforcing groove; 13. Side plate; 14. Second telescopic plate; 15. Cover plate; 2. Telescopic frame; 21. Telescopic unit; 211. Connecting piece; 212. Fixed plate; 213. First tooth surface; 214. Limiting plate; 215. Second tooth surface; 216. Threaded reinforcement column; 217. Docking hole; 218. Fixed seat; 219. Reinforcement column connection end; 220. Threaded column connection end. Detailed implementation mode

[0018] The following elaborates on the preferred embodiments of the present invention in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] In the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] Embodiment

[0021] Reference Figures 1 - 4 , a busbar trunking capable of adjusting the inner cavity space, including a busbar trunking housing 1, the busbar trunking housing 1 includes a first telescopic plate 11, bottom plates 12 are symmetrically and slidably arranged on both sides of the first telescopic plate 11, a second telescopic plate 14 is arranged on the top of the first telescopic plate 11, cover plates 15 are symmetrically and slidably connected to both sides of the second telescopic plate 14, and the cover plates 15 and the bottom plates 12 are connected by side plates 13.

[0022] Furthermore, a plurality of reinforcing ribs 113 are evenly distributed on the bottom end face of the first telescopic plate 11, and a plurality of reinforcing grooves 121 for inserting the reinforcing ribs 113 are formed on the bottom plate 12. Through the arrangement of the reinforcing ribs 113 and the reinforcing grooves 121, the connection strength between the first telescopic plate 11 and the bottom plate 12 is improved, and at the same time, the bottom bearing capacity of the busbar trunking housing 1 is improved.

[0023] Reference Figure 3, the telescopic frame 2 is formed by connecting a plurality of telescopic units 21. Each telescopic unit 21 includes two connecting pieces 211 that are movably connected in a crossed manner. A fixing plate 212 sleeved on the threaded column 112 is fixedly connected to the bottom of one of the connecting pieces 211, and a first tooth surface 213 is provided on the bottom end surface of the fixing plate 212.

[0024] Further, a plurality of fixing columns 111 are equidistantly distributed in the middle of the bottom end surface of the first telescopic plate 11. A threaded column 112 is provided at the bottom of the fixing column 111. A telescopic frame 2 is sleeved on the threaded column 112. Both ends of the telescopic frame 2 are fixedly connected to the bottom end surfaces of the two bottom plates 12 respectively. A limiting plate 214 located at the bottom of the telescopic frame 2 is detachably provided on the threaded column 112. A second tooth surface 215 that engages with the first tooth surface 213 is provided on the top end surface of the limiting plate 214. Both the second tooth surface 215 and the first tooth surface 213 are composed of a plurality of tooth blocks that are equidistantly distributed. A threaded reinforcing column 216 in the shape of a hollow cylinder is provided on the bottom end surface of the limiting plate 214. A docking hole 217 that penetrates the limiting plate 214 and the second tooth surface 215 is opened on the threaded reinforcing column 216. A fixing seat 218 is screwed on the threaded column 112 at the bottom of the limiting plate 214.

[0025] Reference Figure 4 , one end of the fixing seat 218 is provided with a reinforcing column connection end 219 connected to the threaded reinforcing column 216, and the other end of the fixing seat 218 is provided with a threaded column connection end 220 connected to the threaded column 112, and the threaded column connection end 220 is communicated with the reinforcing column connection end 219.

[0026] It should be added that when the telescopic frame 2 is stretched to the maximum limit, the first telescopic plate 11 still maintains the connection relationship with the two side bottom plates 12, and the second telescopic plate 14 still maintains the connection relationship with the two side cover plates 15.

[0027] The working principle of the present utility model:

[0028] When it is necessary to adjust the space of the busbar accommodation cavity, the staff rotates the fixing seat 218 to disconnect the fixing seat 218 from the threaded reinforcement column 216 and the threaded column 112. At the same time, the limiting plate 214 disengages from the threaded column 112. At this time, the connecting piece 211 at the top of the first tooth surface 213 is movably connected to the threaded column 112. The staff pulls or pushes the side plate 13 outward or inward according to requirements, so as to adjust the distance between the two side plates 13, and further adjust the space of the busbar accommodation cavity. When pulling or pushing the side plate 13, the two ends of the telescopic frame 2 fixedly connected to the bottom end faces of the two bottom plates 12 move synchronously with the side plate 13, so as to realize the position adjustment. When adjusted to the appropriate position, the limiting plate 214 is sleeved on the threaded column 112 so that the second tooth surface 215 at the top of the limiting plate 214 engages with the first tooth surface 213 at the bottom of the connecting piece 211. Finally, the fixing seat 218 is screwed onto the threaded column 112. While the threaded column connection end 220 on the fixing seat 218 is threadedly connected to the threaded column 112, the reinforcement column connection end 219 on the fixing seat 218 is threadedly connected to the threaded reinforcement column 216 at the bottom of the limiting plate 214. Since the fixing seat 218 is fixedly connected to the threaded column 112 and the threaded reinforcement column 216 by threads, the limiting plate 214 is fixed on the threaded column 112. And because the limiting plate 214 and the connecting piece 211 engage with each other, the connecting piece 211 rotatably connected to the threaded column 112 is limited and fixed, so as to limit and fix the telescopic frame 2, and further limit and fix the adjusted busbar housing 1, making the adjusted busbar housing 1 stable and firm.

[0029] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A bus duct capable of adjusting the inner cavity space, comprising a bus duct housing (1), characterized in that: The bus duct housing (1) comprises a first telescopic plate (11), bottom plates (12) are symmetrically slidably provided on both sides of the first telescopic plate (11), a plurality of fixed columns (111) are equidistantly distributed in the middle of the bottom end surface of the first telescopic plate (11), a threaded column (112) is provided at the bottom of the fixed column (111), a telescopic frame (2) is sleeved on the threaded column (112), two ends of the telescopic frame (2) are respectively fixedly connected to the bottom end surfaces of the two bottom plates (12), a second telescopic plate (14) is provided on the top of the first telescopic plate (11), a cover plate (15) is symmetrically slidably connected to the two sides of the second telescopic plate (14), and the cover plate (15) is connected to the bottom plate (12) via a side plate (13).

2. A bus duct capable of adjusting the inner cavity space according to claim 1, characterized in that: The telescopic frame (2) is formed by connecting a plurality of telescopic units (21), each telescopic unit (21) comprising two cross-shaped movably connected connecting pieces (211), wherein a fixing plate (212) sleeved on a threaded column (112) is fixedly connected to the bottom of one of the connecting pieces (211), and a first tooth surface (213) is provided on the bottom end surface of the fixing plate (212).

3. A bus duct capable of adjusting the inner cavity space according to claim 2, characterized in that: The threaded column (112) is detachably provided with a limit plate (214) located at the bottom of the telescopic frame (2); the top end surface of the limit plate (214) is provided with a second tooth surface (215) engaged with the first tooth surface (213); the bottom end surface of the limit plate (214) is provided with a threaded reinforcement column (216) in a hollow cylindrical structure; the threaded reinforcement column (216) is provided with a docking hole (217) penetrating the limit plate (214) and the second tooth surface (215).

4. A bus duct capable of adjusting the inner cavity space according to claim 3, characterized in that: A fixing seat (218) is screwed onto the threaded column (112) at the bottom of the limiting plate (214); one end of the fixing seat (218) is provided with a reinforcement column connecting end (219) connected to the threaded reinforcement column (216); the other end of the fixing seat (218) is provided with a threaded column connecting end (220) connected to the threaded column (112); and the threaded column connecting end (220) is in communication with the reinforcement column connecting end (219).

5. The bus duct capable of adjusting the inner cavity space according to claim 1, characterized in that: A plurality of reinforcing ribs (113) are evenly distributed on the bottom end surface of the first telescopic plate (11), and a plurality of reinforcing grooves (121) for the reinforcing ribs (113) to be inserted are provided on the bottom plate (12).

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