Combined intensive bus duct

Abstract

The invention discloses a combined intensive bus duct, and relates to the technical field of intensive bus ducts. The device comprises an upper groove plate, a lower groove plate and a copper bar, the upper groove plate and the lower groove plate are fixedly connected through an inner connecting plate, the bottom of the upper groove plate and the top of the lower groove plate are each provided with two sets of clamping shaft grooves, rotating rings are arranged in the middles of the two sets of clamping shaft grooves, and an upper clamping shaft is rotationally installed in the rotating ring of the upper groove plate; a lower clamping shaft is rotationally installed in the rotating ring of the lower groove plate, positioning spiral grooves are formed in the outer side of the upper clamping shaft and the outer side of the lower clamping shaft, and the copper bar can be inserted into the positioning spiral grooves. The novel positioning spiral groove inserting and clamping mode is adopted, it can be guaranteed that the adjacent copper bars are distributed at equal intervals, no extra support is needed for assistance, assembling is convenient, during overhauling, the side plates are opened, then the lower clamping shaft is rotated, the lower clamping shaft conveys the copper bars out in a spiral mode through the positioning spiral groove, the whole device does not need to be disassembled, and overhauling is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of compact busbars, and particularly to a combined compact busbar. Background Art

[0002] With the continuous development of modern power systems, power transmission and distribution technologies are also constantly innovating. Traditional power transmission methods, such as overhead cables and open electrical lines, can no longer meet the requirements for efficient, reliable, and safe power transmission, especially in industrial equipment, commercial buildings, and high-rise buildings, where the requirements for power distribution are becoming increasingly stringent. Therefore, the busbar system, as an efficient power distribution device, has been widely used. A busbar is a device used to distribute power from a distribution board to various loads or branches, and its main function is to carry current and distribute power.

[0003] In a Chinese patent (publication number: CN105932622B), a compact insulated busbar is disclosed, which includes a housing and phase conductors. The phase conductors are coated with insulation and placed inside the housing. Each section of the compact insulated busbar can be connected and fixed through a connector. The characteristics are as follows: The housing is composed of a left housing and a right housing. The left housing and the right housing are made of profiles with the same cross-section and are inserted and matched with each other to form a phase conductor placement cavity. The two side walls enclosing the phase conductor placement cavity are respectively located on the left housing and the right housing, and the top plate and the bottom plate of the placement cavity are formed by the relative cooperation of the left housing and the right housing; the installation position of the right housing in the cross-section is rotated 180° relative to the installation position of the left housing in the cross-section. Once the busbars of this patent and the prior art are installed, maintenance and repair are relatively difficult, and many components need to be disassembled during maintenance. At the same time, if the rated current of the busbar has reached or exceeded the design load, and it is expected that the future load will continue to increase, then the capacity of the busbar needs to be increased. The number of copper bars can be increased, but once the existing busbar is assembled, it is difficult to increase or decrease the number of copper bars subsequently, and often a new busbar needs to be replaced, resulting in high expansion costs. Summary of the Invention

[0004] The purpose of the present invention is: To solve the above problems, the present invention provides a combined compact busbar.

[0005] The present invention specifically adopts the following technical solutions to achieve the above purpose: A combined compact busbar includes an upper slot plate, a lower slot plate, and copper bars. The upper slot plate and the lower slot plate are fixedly connected through an inner connecting plate. Both the bottom of the upper slot plate and the top of the lower slot plate are provided with two groups of clamping shaft grooves. A rotating ring is arranged in the middle of the two groups of clamping shaft grooves. An upper clamping shaft is rotatably installed in the rotating ring of the upper slot plate, and a lower clamping shaft is rotatably installed in the rotating ring of the lower slot plate; Positioning spiral grooves are provided on the outer sides of the upper clamping shaft and the lower clamping shaft. The copper bars can be inserted into the positioning spiral grooves. A lower support screw is spirally connected in the positioning spiral groove of the lower clamping shaft, and an upper support screw is spirally connected in the positioning spiral groove of the upper clamping shaft; Both sides of the upper groove plate are hinged with side plates, and both ends of the side plates are slidably connected with end plates.

[0006] Furthermore, an elastic cushion is arranged on the outer surface of the upper support screw.

[0007] Furthermore, two groups of positioning spiral grooves are provided at both ends of the upper clamping shaft and the lower clamping shaft, and the spiral directions of the two groups of positioning spiral grooves are opposite.

[0008] Furthermore, external gear teeth are arranged in the middle of the upper clamping shaft and the lower clamping shaft. A group of driving shafts and two groups of driven shafts are rotatably installed at the top of the upper groove plate and the bottom of the lower groove plate respectively. Two driving pulleys are fixedly installed on the outer side of the driving shaft, and driven pulleys are fixedly installed on the outer side of the driven shaft. The driving pulleys are in transmission connection with the driven pulleys. A transmission wheel is fixedly installed in the middle of the driven shaft, and the transmission wheel is meshed with the external gear teeth.

[0009] Furthermore, a crank is arranged at one end of the driving shaft.

[0010] Furthermore, a folding driving handle is hinged on the crank.

[0011] Furthermore, transmission housings are arranged at the top of the upper groove plate and the bottom of the lower groove plate. The driven shaft penetrates through the transmission housing, and the transmission wheel is located in the transmission housing.

[0012] Furthermore, the side plate is hinged to the outside of the upper groove plate through a hinge. A locking bolt is rotatably installed on the outside of the side plate, and a locking nut is welded on the outside of the lower groove plate. The locking bolt can be threadedly connected in the locking nut.

[0013] Furthermore, adjusting nuts are welded at both ends of the side plate, and adjusting screws are rotatably installed on the outside of the end plate. The adjusting screws are threadedly connected in the adjusting nuts.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention adopts a brand-new positioning spiral groove insertion and clamping method, which can ensure the equal-spacing distribution between adjacent copper bars without the assistance of additional brackets, and is convenient for assembly. During maintenance, by opening the side plate and then rotating the lower clamping shaft, the lower clamping shaft conveys the copper bars spirally through the positioning spiral groove, and the whole does not need to be disassembled at all, which is convenient for maintenance.

[0015] 2. In the present invention, the lower support screw is screwed into the positioning spiral groove of the lower clamping shaft, and then the newly added copper bar is inserted into the positioning spiral groove on the upper clamping shaft. The copper bar slides along the outer surface of the lower support screw into the busbar groove, and then the position where the copper bar enters is controlled by the lower support screw. When the copper bar moves to the specified position, the copper bar drops into the positioning spiral groove of the lower clamping shaft. Then, the upper support screw is screwed into the positioning spiral groove of the upper clamping shaft to limit the top of the copper bar, thereby quickly completing the installation of copper bar expansion with simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is an exploded view of the overall structure of the present invention; Figure 3 is an exploded view of the lower slot plate of the present invention; Figure 4 is an exploded view of the upper slot plate of the present invention; Figure 5 is a schematic diagram of the structure of the lower clamping shaft of the present invention; Figure 6 is a schematic diagram of the structure of the upper support screw of the present invention; Figure 7 is a schematic diagram of the structure of the side plate of the present invention; Figure 8 is a schematic diagram of the copper bar installation of the present invention.

[0017] Reference numerals: 1, upper slot plate; 2, lower slot plate; 21, clamping shaft groove; 22, rotating ring; 23, locking nut; 24, driving shaft; 25, driving pulley; 26, rocking handle; 27, driven shaft; 28, driven pulley; 29, transmission wheel; 210, transmission housing; 3, inner connecting plate; 4, side plate; 41, end plate; 42, adjusting screw; 43, adjusting nut; 44, locking bolt; 5, copper bar; 6, lower clamping shaft; 61, positioning spiral groove; 62, external gear teeth; 7, lower support screw; 8, upper clamping shaft; 9, upper support screw; 91, elastic clamping pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] Embodiment 1, as Figures 1-8As shown in the figure, a combined type of compact busbar includes an upper slot plate 1, a lower slot plate 2 and a copper bar 5. The upper slot plate 1 and the lower slot plate 2 are fixedly connected by an inner connecting plate 3. Two groups of clamping shaft grooves 21 are provided at the bottom of the upper slot plate 1 and the top of the lower slot plate 2 respectively. A rotating ring 22 is arranged in the middle of the two groups of clamping shaft grooves 21. An upper clamping shaft 8 is rotatably installed in the rotating ring 22 of the upper slot plate 1, and a lower clamping shaft 6 is rotatably installed in the rotating ring 22 of the lower slot plate 2; Positioning spiral grooves 61 are provided on the outer sides of the upper clamping shaft 8 and the lower clamping shaft 6. The copper bar 5 can be inserted into the positioning spiral grooves 61. A lower support screw 7 is spirally connected in the positioning spiral groove 61 of the lower clamping shaft 6, and an upper support screw 9 is spirally connected in the positioning spiral groove 61 of the upper clamping shaft 8; Side plates 4 are hinged on both sides of the upper slot plate 1, and end plates 41 are slidably connected to both ends of the side plates 4.

[0020] Assembly: Rotate and install the two groups of upper clamping shafts 8 in the two groups of rotating rings 22 of the upper slot plate 1 respectively and located in the clamping shaft grooves 21. Then rotate and install the two groups of lower clamping shafts 6 in the two groups of rotating rings 22 of the lower slot plate 2 respectively and located in the clamping shaft grooves 21. Then fixedly connect the assembled upper slot plate 1 and the lower slot plate 2 together through the inner connecting plate 3. After installation, insert a specified number of copper bars 5 into the positioning spiral grooves 61 in the lower clamping shaft 6 in sequence to quickly complete the equidistant installation. After installation, screw the lower support screw 7 into the positioning spiral groove 61 of the lower clamping shaft 6, and screw the upper support screw 9 into the positioning spiral groove 61 of the upper clamping shaft 8. The upper support screw 9 presses against the top surface of the copper bar 5 to limit and fix the copper bar 5. After the installation of the copper bar 5 is completed, install the side plates 4 on both sides of the upper slot plate 1, and the end plates 41 clamp the copper bar 5 to seal the spaces at both ends of the upper slot plate 1 and the lower slot plate 2, thus completing the overall composition, and the composition is convenient.

[0021] Maintenance: Open the side plates 4, then screw the lower support screw 7 out of the positioning spiral groove 61 of the lower clamping shaft 6, and then rotate the lower clamping shaft 6. The lower clamping shaft 6 sends the copper bar 5 out of the busbar through the positioning spiral groove 61, which is convenient for maintenance. After maintenance, send the copper bar 5 back into the busbar again.

[0022] Expansion: Open the side plate 4, screw out the upper support screw 9 from the positioning screw groove 61 of the upper clamping shaft 8, and screw out the lower support screw 7 outward by a certain distance. The screwed-out distance can be controlled according to the spacing requirement of the copper bars 5. Then insert the copper bars 5 into the positioning screw groove 61 of the upper clamping shaft 8 from the side. Next, rotate the upper clamping shaft 8. The upper clamping shaft 8 conveys the copper bars 5 into the busbar chute. The top of the copper bars 5 is completely inserted into the positioning screw groove 61 of the upper clamping shaft 8, and the bottom abuts against the outer surfaces of the lower support screw 7 and the lower clamping shaft 6 and slides along the outer surfaces. When the copper bars 5 slide into the positioning screw groove 61 without the lower support screw 7, the copper bars 5 fall into this positioning screw groove 61 under the action of gravity. At this time, the copper bars 5 are separated from the upper clamping shaft 8, completing the preliminary positioning of the copper bars 5. Finally, screw the upper support screw 9 into the positioning screw groove 61 of the upper clamping shaft 8. After the upper support screw 9 is completely screwed in, the upper support screw 9 presses against the tops of all the copper bars 5 for limit pressing, completing the expansion operation of the busbar chute. The operation is simple, there is no need to replace the new busbar chute, and the expansion cost is low.

[0023] The present invention uses the positioning screw groove 61 to position the copper bars 5, and the number of screw spacings between adjacent copper bars 5 can be controlled according to needs, so as to control the installation spacing of the copper bars 5. The applicable range is wide. At the same time, the upper clamping shaft 8, the lower clamping shaft 6, the upper support screw 9 and the lower support screw 7 are all made of epoxy resin, which is simple to manufacture. Moreover, epoxy resin has very high hardness, strength and electrical insulation performance, and is corrosion-resistant and anti-aging.

[0024] Embodiment 2, on the basis of the above embodiment, further includes that an elastic cushion 91 is arranged on the outer surface of the upper support screw 9. Through the arrangement of the elastic cushion 91, the elastic cushion 91 can be squeezed between the upper support screw 9 and the copper bars 5, which can improve the fixing effect of the copper bars 5 and give a certain buffer force to the device at the same time.

[0025] Embodiment 3, on the basis of the above embodiment, further includes that two groups of positioning screw grooves 61 are opened at both ends of the upper clamping shaft 8 and the lower clamping shaft 6, and the two groups of positioning screw grooves 61 have opposite helix directions. Through this design, the copper bars 5 are placed on both sides at the same time, and the copper bars 5 on both sides can enter the busbar chute at the same time, and the overhaul and expansion efficiency is higher.

[0026] Embodiment 4, on the basis of the above embodiment, further includes that external gear teeth 62 are arranged in the middle of the upper clamping shaft 8 and the lower clamping shaft 6. A set of driving shafts 24 and two sets of driven shafts 27 are rotatably installed at the top of the upper groove plate 1 and the bottom of the lower groove plate 2 respectively. Two sets of driving pulleys 25 are fixedly installed on the outside of the driving shafts 24, and driven pulleys 28 are fixedly installed on the outside of the driven shafts 27. The driving pulleys 25 and the driven pulleys 28 are in transmission connection. A transmission wheel 29 is fixedly installed in the middle of the driven shaft 27, and the transmission wheel 29 meshes with the external gear teeth 62.

[0027] Further, a crank handle 26 is provided at one end of the driving shaft 24, and a folding driving handle is hinged on the crank handle 26.

[0028] Furthermore, driving housings 210 are provided at the top of the upper groove plate 1 and the bottom of the lower groove plate 2. The driven shaft 27 penetrates through the driving housing 210, and the driving wheel 29 is located in the driving housing 210.

[0029] By rotating the driving shaft 24 on the upper groove plate 1, the driving shaft 24 drives the driving pulley 25 to rotate. The driving pulley 25 drives the driven pulley 28 to rotate. The driven pulley 28 drives the driven shaft 27 to rotate. The driven shaft 27 drives the driving wheel 29 to rotate. The driving wheel 29 drives the upper clamping shaft 8 to rotate through the outer gear teeth 62. The two groups of upper clamping shafts 8 rotate synchronously. Moreover, the driving structure is not in the busbar groove, which does not affect the installation of the copper bar 5 and is convenient for installation. Similarly, by rotating the driving shaft 24 on the lower groove plate 2, the synchronous rotation of the two groups of lower clamping shafts 6 can be controlled.

[0030] Embodiment 5, on the basis of the above embodiments, further includes that the side plate 4 is hinged to the outside of the upper groove plate 1 through a hinge. A locking bolt 44 is rotatably installed on the outside of the side plate 4, and a locking nut 23 is welded on the outside of the lower groove plate 2. The locking bolt 44 can be threadedly connected into the locking nut 23. By screwing the locking bolt 44 into the locking nut 23, the side plate 4 can be locked.

[0031] Embodiment 6, on the basis of the above embodiments, further includes that adjusting nuts 43 are welded at both ends of the side plate 4, and an adjusting screw 42 is rotatably installed on the outside of the end plate 41. The adjusting screw 42 is threadedly connected into the adjusting nut 43.

[0032] By rotating the adjusting screw 42, the adjusting screw 42 drives the end plate 41 to slide under the action of the adjusting nut 43, so that the end plate 41 can abut against the outermost copper bar 5.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combined type intensive busbar trunking, comprising an upper slot plate (1), a lower slot plate (2) and a copper bar (5), characterized in that, The upper trough plate (1) and the lower trough plate (2) are fixedly connected by an inner connecting plate (3). Both the bottom of the upper trough plate (1) and the top of the lower trough plate (2) are provided with two groups of clamping shaft grooves (21). A rotating ring (22) is arranged in the middle part of the two groups of clamping shaft grooves (21). An upper clamping shaft (8) is rotatably installed in the rotating ring (22) of the upper trough plate (1), and a lower clamping shaft (6) is rotatably installed in the rotating ring (22) of the lower trough plate (2). Positioning spiral grooves (61) are provided on the outer sides of the upper clamping shaft (8) and the lower clamping shaft (6). A copper row (5) can be inserted into the positioning spiral grooves (61). A lower support screw (7) is spirally connected in the positioning spiral groove (61) of the lower clamping shaft (6), and an upper support screw (9) is spirally connected in the positioning spiral groove (61) of the upper clamping shaft (8). Side plates (4) are hinged on both sides of the upper trough plate (1), and end plates (41) are slidably connected to both ends of the side plates (4).

2. The modularized compact busbar according to claim 1, wherein, An elastic cushion (91) is arranged on the outer surface of the upper support screw (9).

3. The combined type of compact busbar according to claim 2, characterized in that, Two groups of positioning spiral grooves (61) are provided at both ends of the upper clamping shaft (8) and the lower clamping shaft (6), and the two groups of positioning spiral grooves (61) have opposite helix directions.

4. The modular type compact busbar according to claim 3, wherein, External gear teeth (62) are arranged in the middle of the upper clamping shaft (8) and the lower clamping shaft (6). One group of driving shafts (24) and two groups of driven shafts (27) are rotatably installed on the top of the upper trough plate (1) and the bottom of the lower trough plate (2) respectively. Two groups of driving pulleys (25) are fixedly installed on the outer side of the driving shaft (24), and driven pulleys (28) are fixedly installed on the outer side of the driven shaft (27). The driving pulley (25) is in transmission connection with the driven pulley (28). A transmission wheel (29) is fixedly installed in the middle of the driven shaft (27), and the transmission wheel (29) is meshed with the external gear teeth (62).

5. The modular type of compact busbar according to claim 4, wherein, A crank (26) is arranged at one end of the driving shaft (24).

6. The modularized compact busway according to claim 5, wherein A folding driving handle is hinged on the crank (26).

7. The modular type of compact busway according to claim 6, characterized in that, Transmission housings (210) are arranged on the top of the upper trough plate (1) and the bottom of the lower trough plate (2). The driven shaft (27) penetrates through the transmission housing (210), and the transmission wheel (29) is located in the transmission housing (210).

8. The modular type compact busway according to claim 1, characterized in that, The side plate (4) is hinged to the outside of the upper trough plate (1) through a hinge. A locking bolt (44) is rotatably installed on the outside of the side plate (4), and a locking nut (23) is welded on the outside of the lower trough plate (2). The locking bolt (44) can be threadedly connected in the locking nut (23).

9. The modular type compact busbar according to claim 8, wherein, Adjusting nuts (43) are welded to both ends of the side plate (4). Adjusting screws (42) are rotatably installed on the outside of the end plate (41), and the adjusting screws (42) are threadedly connected in the adjusting nuts (43).

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