Extensible power busbar connection structure

Abstract

The utility model relates to the bus connection structure field especially is the telescopic electric power bus connection structure, including mounting panel no.

Description

Technical Field

[0001] This utility model relates to the field of busbar connection structures, and more particularly to a retractable power busbar connection structure. Background Technology

[0002] In high and low voltage switchgear, busbar connections are one of the indicators of a company's advanced manufacturing process. Different cabinet types have different busbar structures, and their connection methods vary. Currently, horizontal and vertical busbars are typically connected directly with bolts. However, for some cabinets, due to space constraints in busbar arrangement, the distance between horizontal and vertical busbars is large, making direct connection impossible.

[0003] A patent with publication number CN205882402U discloses a connection structure between a horizontal busbar and a vertical busbar, comprising: a vertical busbar, a horizontal busbar, and a T-shaped block. The T-shaped block includes a base plate and a middle plate. The middle plate is vertically disposed in the middle of the base plate. Several bolt holes are provided on both the base plate and the middle plate. Several bolt holes are also provided on the vertical busbar and the horizontal busbar. The bolt holes on the vertical busbar correspond to the bolt holes on the middle plate, and the bolt holes on the horizontal busbar correspond to the bolt holes on the base plate. The middle plate is disposed between two adjacent vertical busbars, and the base plate is disposed on the side of the horizontal busbar closer to the vertical busbar. The base plate is connected to the horizontal busbar, and the middle plate is connected to the vertical busbar by bolts.

[0004] The applicant found that although the above connection structure can improve the reliability of the connection between the horizontal busbar and the vertical busbar, the connection structure is relatively simple. If the distance between the horizontal busbar and the vertical busbar is still large, the connection structure cannot be adapted and its practicality is limited. Based on this, we propose a retractable power busbar connection structure for improvement. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a retractable power busbar connection structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a retractable power busbar connection structure, including a mounting plate one and a mounting plate two, the mounting plate two being vertically disposed in the middle of the mounting plate one, both the mounting plate one and the mounting plate two having mounting grooves, a sliding plate being slidably disposed in the mounting grooves, a drive rod being rotatably connected inside both the mounting plate one and the mounting plate two, a bevel gear one being fixedly connected to the outer wall of the drive rod, a lead screw being rotatably connected to the mounting grooves, the sliding plate being threadedly connected to the outer wall of the lead screw, a bevel gear two being fixedly connected to one end of the lead screw, the bevel gear one and the bevel gear two being meshed, multiple positioning holes one being provided on the outer wall of both the mounting plate one and the mounting plate two, and multiple positioning holes two being provided on the outer wall of the sliding plate.

[0007] As a further description of the above technical solution: Multiple positioning holes 1 are evenly distributed on the outer walls of mounting plate 1 and mounting plate 2, and multiple positioning holes 2 are evenly distributed on the outer wall of the slide plate. The distance between two adjacent positioning holes 1 and the distance between two adjacent positioning holes 2 are equal.

[0008] The above technical solution, with its equally spaced positioning holes, allows for easy installation of the busbar using bolts, passing through both positioning hole one and positioning hole two, thus preventing bolts from being unable to be installed due to misalignment of the positioning holes.

[0009] As a further description of the above technical solution: Slide rods are fixedly connected to the mounting groove near the top and bottom positions, and a limit ring is fixedly connected to one end of each slide rod. Slide grooves are opened in the sliding plate near the top and bottom positions, and the limit rings are slidably connected in the slide grooves.

[0010] The above technical solution utilizes the maximum sliding distance of the limiting ring within the groove to limit the maximum extension distance of the slide plate relative to the mounting groove, thus preventing the slide plate from detaching from the mounting groove.

[0011] As a further description of the above technical solution: The first mounting plate is made by opening mounting grooves at both ends, and the second mounting plate is made by opening a mounting groove at one end away from the first mounting plate.

[0012] With the above technical solution, the two slide plates located in the first mounting plate can extend towards the horizontal ends respectively, and the slide plate located in the second mounting plate extends towards the end away from the first mounting plate.

[0013] As a further description of the above technical solution: One of the drive rods has its upper end extending through the upper end of the first mounting plate, and the other drive rod has its upper end extending through the upper end of the second mounting plate. Both drive rods have a knob fixedly connected to their upper ends.

[0014] The above technical solution allows the knob to drive the drive rod to rotate.

[0015] As a further description of the above technical solution: The mounting plate one and mounting plate two are made of an integrated structure. The top plate of the mounting plate one and mounting plate two are provided with grooves. A pressure block and a locking block are slidably arranged in the grooves respectively. A spring is fixedly connected between the pressure block and the inner wall of the groove. A friction block is fixedly connected to one end of the locking block, and the other end of the friction block is set to fit against the surface of the drive rod.

[0016] The above technical solution uses a spring to apply elastic force to the pressure block, causing it to move laterally to engage the locking block. This, in turn, causes the friction block to press against the surface of the drive rod, increasing the rotational friction of the drive rod and preventing it from rotating accidentally.

[0017] As a further description of the above technical solution: A lever is fixedly connected to the upper end of the pressure block, and a sliding opening is provided at the upper end of the top plate of the mounting plate one, and the lever is slidably disposed in the sliding opening.

[0018] With the above technical solution, the pressure block can be moved by moving the lever, so that it loses pressure on the locking block, thus making it easier to rotate the drive rod.

[0019] As a further description of the above technical solution: The contact surfaces of the pressure block and the locking block are both made of inclined surfaces, and the inclination of the inclined surfaces is matched with each other.

[0020] The above technical solution facilitates the movement of the pressure block when pressing the locking block, and enables the locking block to move laterally.

[0021] This utility model has the following beneficial effects: 1. Compared with the existing technology, this retractable power busbar connection structure has mounting grooves in mounting plate one and mounting plate two, and a sliding plate is slidably installed in the mounting grooves. The knob drives the drive rod to rotate, and the meshing relationship between bevel gear one and bevel gear two causes the lead screw to rotate. This allows the sliding plate to slide and extend relative to the mounting groove under the limit of the sliding rod. This allows the horizontal busbar and the vertical busbar to be installed on the outer wall of mounting plate one and mounting plate two as needed, or on the outer wall of the extended sliding plate when the spacing is large, which is more practical and convenient.

[0022] 2. Compared with the prior art, this retractable power busbar connection structure, through the coordinated arrangement of pressure block, spring, friction block and lever structure, can use the spring force to drive the pressure block to reset after the drive rod is adjusted, thereby pressing the locking block to move, and then driving the friction block to press the drive rod, applying pressure to it, thereby preventing the drive rod from rotating unexpectedly and improving the stability after the slide is deployed. Attached Figure Description

[0023] Figure 1 This is a diagram showing the internal structure of mounting plate one and mounting plate two of the retractable power busbar connection structure proposed in this utility model. Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is a diagram of the pressure block connection structure of the retractable power busbar connection structure proposed in this utility model; Figure 4 This is a diagram of the first type of installation busbar structure for the retractable power busbar connection structure proposed in this utility model. Figure 5 This is a diagram of the second type of installation busbar structure for the retractable power busbar connection structure proposed in this utility model.

[0024] Legend: 1. Mounting plate one; 2. Mounting plate two; 3. Mounting groove; 4. Slide plate; 5. Positioning hole one; 6. Positioning hole two; 7. Lead screw; 8. Slide rod; 9. Slide groove; 10. Limiting ring; 11. Drive rod; 12. Bevel gear one; 13. Bevel gear two; 14. Knob; 15. Pressure block; 16. Spring; 17. Friction block; 18. Toggle lever; 19. Horizontal busbar; 20. Mounting hole; 21. Locking block; 22. Vertical busbar. Detailed Implementation

[0025] Reference Figure 1-5The retractable power busbar connection structure provided by this utility model includes a mounting plate 1 and a mounting plate 2. The mounting plate 2 is vertically disposed in the middle of the mounting plate 1. Mounting grooves 3 are provided on both mounting plates 1 and 2, and sliding plates 4 are slidably disposed within the mounting grooves 3. Horizontal busbars 19 and vertical busbars 22 are installed on the outer walls of the mounting plates 1 and 2. When the distance between the horizontal busbars 19 and the vertical busbars 22 is too large, making installation requirements insufficient with only the mounting plates 1 and 2, installation can be achieved through the extended sliding plates 4, thus better meeting installation needs. Both mounting plates 1 and 2 are rotatably connected to a drive rod 11. A bevel gear 12 is fixedly connected to the outer wall of the drive rod 11. A lead screw 7 is rotatably connected to the mounting groove 3. A slide plate 4 is threadedly connected to the outer wall of the lead screw 7. A bevel gear 13 is fixedly connected to one end of the lead screw 7. The bevel gear 12 and bevel gear 13 are meshed. Multiple positioning holes 5 are provided on the outer walls of both mounting plates 1 and 2. Multiple positioning holes 6 are provided on the outer wall of the slide plate 4. Mounting holes 20 that match the positioning holes are provided on the outer walls of the horizontal busbar 19 and the vertical busbar 22 for connecting bolts for installation.

[0026] Multiple positioning holes 5 are evenly distributed on the outer walls of mounting plate 1 and mounting plate 2, and multiple positioning holes 6 are evenly distributed on the outer wall of slide plate 4. The spacing between two adjacent positioning holes 5 and the spacing between two adjacent positioning holes 6 are equal. The positioning holes are evenly distributed to facilitate the installation of the busbar with bolts, allowing the bolts to pass through the positioning holes 5 and 6, and avoiding the inability to install the bolts due to misalignment of the positioning holes.

[0027] Slide rods 8 are fixedly connected to the mounting groove 3 near the top and bottom positions, and a limit ring 10 is fixedly connected to one end of each slide rod 8. Slide grooves 9 are opened in the sliding plate 4 near the top and bottom positions. The limit ring 10 is slidably connected in the slide groove 9. By using the maximum sliding distance of the limit ring 10 in the slide groove 9, the maximum extension distance of the sliding plate 4 relative to the mounting groove 3 is limited, so as to prevent the sliding plate 4 from leaving the mounting groove 3.

[0028] Mounting plate 1 is made by opening mounting grooves 3 at both ends, and mounting plate 2 is made by opening mounting groove 3 at one end away from mounting plate 1. The two sliding plates 4 located in mounting plate 1 can extend towards the horizontal ends respectively, and the sliding plate 4 located in mounting plate 2 extends towards the end away from mounting plate 1.

[0029] One of the drive rods 11 has its upper end passing through the upper end of the mounting plate 1, and the other drive rod 11 has its upper end passing through the upper end of the mounting plate 2. Both drive rods 11 have a knob 14 fixedly connected to their upper ends, and the knob 14 can be used to drive the drive rod 11 to rotate.

[0030] Mounting plate 1 and mounting plate 2 are made of an integrated structure. The top plates of mounting plate 1 and mounting plate 2 have grooves. A pressure block 15 and a locking block 21 are slidably arranged in the grooves respectively. A spring 16 is fixedly connected between the pressure block 15 and the inner wall of the groove. A friction block 17 is fixedly connected to one end of the locking block 21. The other end of the friction block 17 is set against the surface of the drive rod 11. The spring 16 applies elastic force to the pressure block 15, causing it to press the locking block 21 to move laterally. Thus, the friction block 17 presses the surface of the drive rod 11, increasing the rotational friction of the drive rod 11 and preventing it from rotating accidentally.

[0031] A lever 18 is fixedly connected to the upper end of the pressure block 15. A sliding opening is provided at the upper end of the top plate of the mounting plate 1. The lever 18 is slidably disposed in the sliding opening. By moving the lever 18, the pressure block 15 can be moved, so that it loses pressure on the locking block 21, thereby facilitating the rotation of the drive rod 11.

[0032] The contact surfaces of the pressure block 15 and the locking block 21 are both made of inclined surfaces, and the inclination of the inclined surfaces is matched with each other, so that when the pressure block 15 moves to press the locking block 21, it can drive the locking block 21 to move laterally.

[0033] Working principle: In general, the horizontal busbar 19 is bolted to the outer wall of mounting plate 1, and the vertical busbar 22 is bolted to the outer wall of mounting plate 2. If the distance between the horizontal busbar 19 and the vertical busbar 22 is large, the lever 18 can be moved to reduce the pressure of the friction block 17 on the drive rod 11. Then, the knob 14 is turned to drive the drive rod 11 to rotate. Then, the meshing relationship between bevel gear 12 and bevel gear 2 drives the lead screw 7 to rotate, thereby controlling the slide plate 4 to move out of the mounting slot 3. Afterwards, the lever 18 is released, and the horizontal busbar 19 and the vertical busbar 22 are respectively installed on the outer wall of the extended slide plate 4. This is convenient and easy. After the lever 18 is released, the compressed spring 16 returns to its original position, causing the pressure block 15 to move and press the locking block 21 to move. This, in turn, causes the friction block 17 to press against the outer wall of the drive rod 11, increasing its rotational friction and preventing the drive rod 11 from rotating unexpectedly. This improves the stability of the horizontal busbar 19 and the vertical busbar 22 after installation.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A retractable power busbar connection structure, comprising a mounting plate one (1) and a mounting plate two (2), wherein the mounting plate two (2) is vertically disposed in the middle of the mounting plate one (1), characterized in that: Mounting slots (3) are provided on both mounting plate one (1) and mounting plate two (2). A sliding plate (4) is slidably arranged in the mounting slot (3). A drive rod (11) is rotatably connected inside both mounting plate one (1) and mounting plate two (2). A bevel gear one (12) is fixedly connected to the outer wall of the drive rod (11). A lead screw (7) is rotatably connected in the mounting slot (3). The sliding plate (4) is threadedly connected to the outer wall of the lead screw (7). A bevel gear two (13) is fixedly connected to one end of the lead screw (7). The bevel gear one (12) and bevel gear two (13) are meshed. Multiple positioning holes one (5) are provided on the outer wall of both mounting plate one (1) and mounting plate two (2). Multiple positioning holes two (6) are provided on the outer wall of the sliding plate (4).

2. The scalable power bus connection structure of claim 1, wherein: Multiple positioning holes one (5) are evenly distributed on the outer walls of mounting plate one (1) and mounting plate two (2), and multiple positioning holes two (6) are evenly distributed on the outer wall of sliding plate (4). The distance between two adjacent positioning holes one (5) and the distance between two adjacent positioning holes two (6) are equal.

3. The scalable power bus connection structure of claim 1, wherein: Slide rods (8) are fixedly connected to the mounting groove (3) near the upper and lower positions, and a limit ring (10) is fixedly connected to one end of each slide rod (8). Slide grooves (9) are opened in the sliding plate (4) near the upper and lower positions, and the limit ring (10) is slidably connected in the slide groove (9).

4. The scalable power bus connection structure of claim 1, wherein: The mounting plate one (1) is made by opening mounting grooves (3) at both ends, and the mounting plate two (2) is made by opening mounting grooves (3) at one end away from the mounting plate one (1).

5. The scalable power bus connection structure of claim 1, wherein: One of the drive rods (11) has its upper end passing through the upper end of the mounting plate one (1), and the other drive rod (11) has its upper end passing through the upper end of the mounting plate two (2). Both drive rods (11) have a knob (14) fixedly connected to their upper ends.

6. The retractable power busbar connection structure according to claim 1, characterized in that: The mounting plate one (1) and mounting plate two (2) are made of an integrated structure. The top plate of the mounting plate one (1) and mounting plate two (2) is provided with a groove. A pressure block (15) and a locking block (21) are slidably arranged in the groove. A spring (16) is fixedly connected between the pressure block (15) and the inner wall of the groove. A friction block (17) is fixedly connected to one end of the locking block (21). The other end of the friction block (17) is attached to the surface of the drive rod (11).

7. The scalable power bus connection structure of claim 6, wherein: The upper end of the pressure block (15) is fixedly connected to a lever (18), and the upper end of the top plate of the mounting plate (1) is provided with a sliding opening, and the lever (18) is slidably disposed in the sliding opening.

8. The scalable power bus connection structure of claim 6, wherein: The contact surfaces of the pressure block (15) and the locking block (21) are both made of inclined surfaces, and the inclination of the inclined surfaces is matched with each other.

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